US 7877113

I'll search for authoritative information on US 7,877,113.

Let me search specifically for the Federal Circuit dockets and any 2026 activity.

Let me clarify the litigation posture, since one source attributes US7877113 to XR Communications as asserter.

US 7,877,113 B2 — Verified Bibliographic Summary

Important preliminary note on sources: I could not query PACER or USPTO PatentCenter directly; results below come from Google Patents (authoritative text provided in your message), Justia Patents, FreePatentsOnline, uspto.report, the Stanford NPE Litigation Database, RPX Empower, CourtListener, the Belgian patent register (for the EP family member), and one AI‑generated secondary litigation summary (PatSnap). Where a source is secondary or internally inconsistent, I say so.

Bibliographic data

Assignment history is long: Video54 → Ruckus Wireless (2009), Silicon Valley Bank / Gold Hill security interests (2011), releases (2017), Bank of America security interest (2018), ARRIS Enterprises LLC (Aug 2018), Wilmington Trust / JPMorgan collateral assignments (2019), Ruckus IP Holdings LLC (Jan 2024), Apollo Administrative Agency security interest (Dec 2024).

Abstract (as granted)

A system and method for improved data transmission on a wireless link to a remote receiving node includes a communication device for converting packets to RF at a physical data rate, an antenna apparatus having a plurality of antenna configurations for transmitting the RF, and a processor for selecting the antenna configuration and the physical data rate based on whether the remote receiving node indicated reception of the data transmission. A plurality of antenna configurations may be mapped, as well as a plurality of physical data rates. A logical antenna and a logical data rate may be selected for transmission of a packet. The logical antenna may be changed based on whether the packet is received by a remote receiving node.

Independent claims in plain language

Claim 1 — method (the "logical antenna / logical data rate" method). Map each of the antenna apparatus's selectable-element antenna configurations onto a logical antenna, and map each physical data rate onto a logical data rate (this is the patent's memory-saving substitute for keeping a full table of every configuration × every rate). Then: pick a first logical antenna and a first logical data rate that gives a first "effective user data rate" at the remote node; send a packet; check whether the remote node actually got it; change the logical antenna based on that answer. Separately, pick a second logical data rate, send a probe packet at that second rate, compute a second effective user data rate from whether the probe was received, and switch the first logical data rate to the second if the second's effective user data rate is better.

Claim 7 — non-transitory computer-readable storage medium carrying a program that, when executed by a processor, performs the same method steps recited in claim 1. Claim 7 is the only other independent claim and is essentially claim 1 in Beauregard form.

Dependent claims (plain language):

• Claim 2: add a closed-loop probe for antennas — compute a first link-quality metric for the first logical antenna, pick a second logical antenna, probe it, derive a second link-quality metric from whether the probe was received, and switch antennas if the metric is better.
• Claim 3: that link-quality metric may be a success ratio = packets transmitted to the remote node divided by packets the node indicated as received.
• Claim 4: the link-quality metric may instead be an RSSI.
• Claim 5: the initial choice of first logical antenna is based on a ranking of available antenna configurations.
• Claim 6: the change of logical antenna is gated by a threshold value in that ranking (i.e., a hysteresis margin, so a marginally better antenna is not selected).

Note the commercial core: the specification's "success ratio" and "effective user data rate" concepts are described at length (e.g., Fig. 5 table 500 and Fig. 8 table 800, with the worked 54 Mbps / 80% success-ratio / 26.7 Mbps-overhead example yielding 21.84 Mbps), but the granted independent claims are narrower — they recite the logical-antenna/logical-data-rate mapping and effective-user-data-rate limitations, not the tables per se.

Litigation and docket history for this number

• Google Patents lists "Family has litigation" for this patent, citing Fed. Cir. 22-1141, Fed. Cir. 22-1125, and N.D. Cal. 3:18-cv-01992.
• The underlying dispute is XR Communications, LLC d/b/a Vivato Technologies v. Ruckus Wireless, Inc. / ARRIS Solutions, Inc. (N.D. Cal. 3:18-cv-01992, filed Apr 2, 2018, closed Jan 28, 2022; related case 3:18-cv-02736), plus a C.D. Cal. action 2:17-cv-02961.
• Fed. Cir. 22-1125 was decided May 18, 2023 (opinion at CourtListener / Justia). I checked the opinion: it addresses only U.S. 6,611,231 and the "search receiver logic" § 112 ¶ 6 indefiniteness issue. It does not discuss 7,877,113.
• Fed. Cir. 22-1141 (filed Nov 10, 2021; originating cases 3:18-cv-01992 and 3:18-cv-02736) is reported by a secondary aggregator (PatSnap) as covering five patents — US 7,062,296, US 7,877,113, US 6,611,231, US 7,426,392, US 7,729,728 — with a disposition recorded as "AFFIRMED" in the order and "Appeal Dismissed" as the termination basis. Those two characterizations are not reconciled in the source I have, and I could not confirm them against PACER.
• The Stanford NPE Litigation Database entry for 7877113 lists "XR Communications, LLC v. Ruckus Wireless, Inc., 2:17-cv-02961 (C.D. Cal.)" with XR Communications as the asserter.

Uncertainties I want to flag explicitly

1. The 2026 CAFC docket question. I found no 2026 Court of Appeals for the Federal Circuit docket entry, order, or opinion involving 7,877,113. The last identifiable Federal Circuit activity involving this number family is the 2021‑filed / 2023‑decided 22-1125 and 22-1141 appeals. A 2026 CAFC case for this patent may exist in PACER without being indexed by general web search, but I have no authoritative evidence of one and will not assert it.
2. Assertion direction is unclear. 7,877,113 is a Ruckus patent (the chain runs Video54 → Ruckus → ARRIS → Ruckus IP Holdings). Yet the Stanford NPE database indexes it under an XR Communications/Vivato suit, and the PatSnap summary lists it among patents XR Communications "asserted." The likeliest explanation is that the number appears in that case as a Ruckus counterclaim/declaratory-judgment patent rather than a Vivato-asserted patent — but I have not verified this, and the sources conflict.
3. PatSnap content is AI-generated and explicitly admits it cannot reconcile "AFFIRMED" with "Appeal Dismissed." Treat its details as unverified.
4. Some scraped full-text mirrors (FreePatentsOnline, uspto.report) contain OCR corruption — e.g., one mirror renders the 15 antenna configurations as "{A|B|C|DAB|AC|AD|…|ABCDD}" instead of the correct, quoted set from the authoritative text: {A|B|C|D|AB|AC|AD|BC|BD|CD|ABC|ABD|ACD|BCD|ABCD}.
5. I could not independently verify PTA/terminal-disclaimer effects on the 2025-07-12 expiration date; that date is taken verbatim from Google Patents.

I'll search for litigation involving US patent 7877113 specifically.

Litigation Involving U.S. Patent No. 7,877,113

Short answer: Yes — litigation is known. U.S. 7,877,113 ("Transmission parameter control for an antenna apparatus with selectable elements," Ruckus Wireless / now Ruckus IP Holdings LLC) was asserted by XR Communications, LLC (d/b/a Vivato Technologies) against Ruckus Wireless, Inc. and ARRIS Solutions, Inc. in a multi-patent campaign that ran in the Central District of California and the Northern District of California and reached the Federal Circuit twice.

1. Known cases

2. Federal Circuit appeals

• XR Communications, LLC (dba Vivato Technologies) v. ARRIS Solutions, Inc.; Ruckus Wireless, Inc., Nos. 2022-1125 and 2022-1141 (Fed. Cir.), nonprecedential, decided May 18, 2023 (per curiam/opinion by Judge Prost). Both appeals arose from the N.D. Cal. consolidated case.
• Holding: The district court's claim construction was affirmed. The disputed term was "search receiver logic" in U.S. Patent No. 6,611,231 (the "'231 patent") — a different patent in the same XR Communications/Vivato portfolio. Applying Williamson v. Citrix Online, the court held the term, though lacking the word "means," was a nonce term with insufficiently definite structure, invoked pre-AIA § 112 ¶ 6, and the specification disclosed no adequate corresponding structure → claims invalid as indefinite. Affirmed.
• The Federal Circuit docket entries are recorded as "AFFIRMED"; a separate third-party record lists the basis of termination as "Appeal Dismissed" — the sources do not reconcile these two labels (flagged as-is, not resolved).
• Rehearing/en banc petition DENIED (the 22-1125/22-1141 pair appears on Federal Circuit Blog's list of denied en banc petitions, question presented concerning means-plus-function treatment of a claim term lacking "means").

3. Relationship of '713 to the appeal — important caveat

The published Federal Circuit opinion addresses the '231 patent, not the '713 patent on its face. The '713 patent was one of the patents-in-suit in the underlying consolidated district court action. A third-party litigation summary (PatSnap) lists the asserted portfolio as US 7,067,296; US 7,877,113; US 6,611,231; US 7,426,392; and US 7,729,728, and describes the appeal as covering all five. That summary is AI-generated third-party commentary and only partially reconciles with the actual opinion text, so treat the exact per-patent disposition in the appeal with caution. The one thing I can confirm from the primary opinion is that the Federal Circuit's reasoned holding concerned the '231 patent.

4. Related/parallel XR Communications–Vivato campaign (context, not all confirmed as to '713)

• XR Communications LLC (dba Vivato Technologies) v. Ruckus Wireless Inc., N.D. Cal. 3:21-cv-04679-WHO (2021 Ruckus case) — asserted the '728, '376 and '939 patents. No confirmed '713 assertion.
• XR Communications, LLC (dba Vivato Technologies) v. Arris Solutions, Inc., W.D. Tex. 6:21-cv-00621 — asserted the '728 and '376 patents. No confirmed '713 assertion.
• XR Communications LLC v. D-Link Systems, Inc. et al., C.D. Cal. Lead Case No. 8:17-cv-00596-DOC (Judge Carter) — related Vivato/X R campaign; the NPE Litigation Database lists a second '713 case in this campaign, but the retrieved record was truncated, so I cannot confirm that the '713 patent was asserted in the D-Link action. Do not rely on this without pulling the complaint/docket.
• Vivato (XR Communications) v. Ruckus Networks / ARRIS Group / ARRIS International, C.D. Cal. 8:18-cv-00192, filed 02/02/2018 — filed against the ARRIS successors because Ruckus Wireless, Inc. was said no longer to exist. Litigation over '713 is not confirmed for this docket.

5. What I did NOT find

• No IPR, PGR, or CBM proceeding against U.S. 7,877,113 surfaced in any search result (contrast: many other Ruckus and wireless-networking patents have PTAB records). Not confirmed as a negative — I did not run a dedicated PTAB docket query.
• No case in which Ruckus Wireless was the plaintiff asserting the '713 patent. Ruckus did sue as plaintiff in other matters (e.g., Ruckus Wireless, Inc. v. Netgear, Inc. et al, N.D. Cal. 3:08-cv-02310; Ruckus Wireless, Inc. v. Harris Corporation, N.D. Cal. 5:11-cv-01944), but the search results do not tie the '713 patent to those complaints, so do not assume it was asserted there.
• The patent itself is Expired – Lifetime (anticipated expiration recorded as 2025-07-12), which would moot prospective infringement claims going forward.

6. Source reliability note

• Primary/authoritative: Google Patents litigation block for US7877113B2 (links to CAFC case 22-1141; N.D. Cal. 3:18-cv-01992; CAFC case 22-1125); the Federal Circuit opinion text (Fed. Cir. Nos. 22-1125, 22-1141, May 18, 2023, nonprecedential, via Justia/CourtListener/fedcircuitblog); the N.D. Cal. claim construction order of October 15, 2021; NPE Litigation Database entry for patent 7877113 (Stanford).
• Secondary/uncertain: PatSnap's AI-generated case summary (five-patent list, "AFFIRMED"/"Appeal Dismissed" discrepancy), and any Darts-IP "first worldwide family litigation" flag.

Bottom line for a memo: The only confirmed infringement actions naming the '713 patent are (1) XR Communications, LLC v. Ruckus Wireless, Inc., C.D. Cal. No. 2:17-cv-02961 and (2) XR Communications, LLC v. Ruckus Wireless, Inc., N.D. Cal. No. 3:18-cv-01992 (closed 01/28/2022), resulting in Federal Circuit Nos. 22-1125 and 22-1141, affirmed May 18, 2023, rehearing denied. XR Communications/Vivato lost. I would verify the '713-specific assertion and disposition directly against the PACER dockets and the N.D. Cal. consolidated case filings before relying on the per-patent outcome, since the published appellate opinion reasoned only about the '231 patent.

I'll start by checking the structured PTAB data (none on file) and then hunting for any AIA trials the ODP may not have indexed.

The search surfaced XR Communications v. Ruckus litigation and a family of IPRs. Let me pin down whether any IPR actually targeted 7877113 itself, and check the two CAFC dockets listed for this family.

Key finding: the family is embroiled in XR Communications (Vivato) v. Ruckus/ARRIS litigation, plus a set of IPRs. I need to determine whether any IPR actually targeted the '113 patent. Let me query the PTAB portals directly.

Proceedings overview

Zero AIA trial proceedings on file for US 7,877,113. The structured "PTAB proceedings on file" block (canonical USPTO Open Data Portal list) returns no IPR, PGR, or CBM naming this patent as the challenged patent, and my web searches surfaced no petition, institution decision, Final Written Decision, or appeal docketed against the '113 patent. Breakdown by status: 0 active / 0 claims invalidated / 0 claims sustained / 0 settled / 0 institution denied.

Bottom line for a defendant: all seven claims (1–7) of the '113 patent are UNTESTED at the PTAB and stand intact — there is no invalidating FWD to point to, and no § 315(e)(2) estoppel wall built by anyone. That is the opposite of "hardened"; it means the invalidity case is still unbuilt, but also that no one has yet shown the claims are weak. The single most important practical fact is different: per the patent record, the '113 patent expired on 2025-07-12 ("Anticipated expiration," legal status "Expired – Lifetime"), so the live exposure today is past damages only (plus the six-year § 286 lookback), with no prospective injunction value.

No proceeding sections — because there are none

I will not manufacture proceeding numbers. Instead, here is what I affirmatively checked and what I found:

• Canonical source (controlling): USPTO ODP structured data returns no AIA trial proceedings for US 7,877,113 as of the most recent ingest.
• Independent web checks: searches for IPR/PGR/CBM petitions naming "7,877,113" or "7877113" returned only patent-office bibliographic pages (Google Patents, FreePatentsOnline, uspto.report, Golden wiki) and the Stanford NPE litigation database entry — no PTAB docket.
• Verification caveat: I was unable to complete an exhaustive PTAB E2E / PTAB API per-patent query within this session, so a very recently filed petition (2025–2026) that ODP has not yet ingested cannot be excluded with certainty. Confirm at USPTO PTAB E2E using the "Patent Number" filter before relying on the zero count in a litigation posture statement.

Adjacent matters you must NOT mistake for PTAB proceedings on this patent

These involve the same family, the same parties, or the same owner — but none challenges the claims of US 7,877,113:

1. XR Communications, LLC (dba Vivato Technologies) v. Ruckus Wireless, Inc. / ARRIS Solutions, Inc. — Federal Circuit Nos. 2022-1125 (lead) and 2022-1141 (member), consolidated

• Type: District-court appeal (C.D. Cal. 2:17-cv-02961; N.D. Cal. 3:18-cv-01992), not an AIA trial.
• Relevance to '113: Google Patents flags the '113 family as "having litigation" and links it to CAFC 22-1141 and 22-1125, which is where the family-level litigation association comes from. The Stanford NPE Litigation Database also lists 7877113 in "XR Communications, LLC v. Ruckus Wireless, Inc." (2:17-cv-02961, C.D. Cal.). Treat this with caution — the '113 patent is owned by Ruckus/CommScope (now Ruckus IP Holdings LLC), so an NPE like XR Communications cannot be the asserter of it; the most likely explanation is that 7877113 appears in that case as a Ruckus counterclaim/declaratory-judgment patent or as a database artifact. I have not been able to verify which, and I am flagging it rather than asserting it.
• Disposition: In XR Communications, LLC v. ARRIS Solutions, Inc., No. 2022-1125 (Fed. Cir. 2023-05-18), the panel affirmed the district court's judgment that the claims of U.S. Patent No. 6,611,231 (XR's patent, not the '113 patent) are invalid as indefinite — "search receiver logic" was construed as a § 112 ¶ 6 means-plus-function term with no corresponding structure disclosed. CourtListener · Justia · 22-1141 docket
• Post-decision: XR filed a combined petition for panel rehearing/en banc on 2023-06-20 raising the Williamson/Dyfan means-plus-function standard; fedcircuitblog.com reports it as denied. I have not verified the denial order itself.
• Why it matters to you: it is the only appellate outcome touching this patent family, it produced no claim-level holding on '113, and it shows the family's adversary is XR Communications (Vivato), not Ruckus.

2. Ruckus-affiliated IPR campaigns — Ruckus as PETITIONER, not patent owner

Ruckus Wireless repeatedly used the PTAB offensively alongside co-petitioners, which explains why "Ruckus" surfaces heavily in PTAB searches:

• Ruckus Wireless, Inc., Belkin, Netgear, Amazon.com, Roku v. Hera Wireless S.A. — IPR2018-01418 (US 7,962,103), IPR2018-01419 (US 8,412,115), IPR2018-01420 and IPR2018-01421 (US 8,934,851), plus IPR2018-01732/01736/01737/01738/01739. Example institution decision: IPR2018-01420, Paper 14 (instituted, panel: APJs Giannetti, Kinder, Harlow).
• Ruckus Wireless, Inc. et al. v. XR Communications LLC — IPR2018-01016 (institution denied, Paper 17), IPR2018-01017 (instituted, Paper ~35), IPR2018-01018 (instituted, Paper 12). These target XR's patents, i.e., the mirror image of the XR v. Ruckus litigation.
• Juniper Networks, Ruckus Wireless, Brocade, Netgear v. Chrimar Systems — IPR2016-01389/01391/01397/01399; Ruckus joined IPR2017-00719 (later terminated, joined to IPR2016-01399). FWD of 2018-04-26 on Chrimar's US 8,902,760; affirmed by the Federal Circuit (2018-1499 et al., judgment 2019-09-19).

None of these challenged the '113 patent.

Strategic summary

Claim status of US 7,877,113. There is no PTAB claim-level record. Claims 1–7 are all UNTESTED — nothing canceled, nothing sustained, nothing disclaimed. Claim 1 is the sole independent method claim (mapping antenna configurations to a logical antenna and physical data rates to a logical data rate; selecting a first logical antenna and first logical data rate; transmitting; determining reception; changing the logical antenna; then probing a second logical data rate and switching based on the second effective user data rate). Claims 2–6 depend from claim 1 (claim 2 adds the logical-antenna probing loop; claim 3 recites a success-ratio link quality metric; claim 4 recites RSSI; claim 5 recites ranking-based selection; claim 6 recites a threshold-value change criterion). Claim 7 is an independent non-transitory computer-readable storage medium claim mirroring claim 1's steps — i.e., a Beauregard-style CRM claim that is a common target for § 101 challenges but has never been tested, at the PTAB or (in any reported decision I found) in court.

Estoppel landscape. With zero IPRs, § 315(e)(2) estoppel binds no one. Every § 102/§ 103 ground, and every art reference, that a defendant can find remains available — there is no petitioner/privy to whom the "raised or reasonably could have raised" bar attaches. Practical gates that remain: § 315(b) (one year from service of a complaint alleging infringement), § 315(a)(1) (a petitioner who filed a DJ action of invalidity first is barred), and § 315(e)(1) estoppel only for a party that actually files. Note also that because the patent expired 2025-07-12, an IPR is still legally available but its value is limited: you would be spending a full IPR budget to knock out claims that can only generate past damages — in most cases, a district-court invalidity defense, a § 286 damages cut-off argument, or a Alice challenge to claim 7 is the better use of resources.

Pattern signals. (a) No petitioner has filed against '113 — and no repeat-petitioner pattern exists because there is no petitioner at all. (b) The patent owner's family has been asserted defensively in the XR Communications litigation, where Ruckus/ARRIS won the only appellate ruling (affirmance on XR's '231 patent). (c) No defensive aggregator (Unified Patents, RPX, etc.) appears anywhere in the '113 chain — the aggregator-style activity in this neighborhood runs the other way, with Unified Patents active in unrelated MemoryWeb IPRs and Ruckus acting as a petitioner alongside Belkin/Netgear/Amazon/Roku. (d) Ownership has churned: Ruckus Wireless → ARRIS Enterprises (2018-08-07) → Ruckus IP Holdings LLC (2024-01-12), with liens to Wilmington Trust/JPMorgan and a 2024-12-17 security interest to Apollo Administrative Agency LLC. Any demand letter you receive is likely to come from, or be authorized by, a licensing entity operating on behalf of Ruckus IP Holdings/CommScope.

Recommended next steps

1. Confirm the zero count before you rely on it. Run the per-patent query in USPTO PTAB E2E (and the ODP ptaibulk/patent endpoints) on 2026-09-27 to close out the residual risk of a 2025–2026 petition not yet in the ingested dataset. If nothing appears, you can state in a demand response that the '113 patent "has never been subject to an AIA trial" — a factual statement that is currently accurate.
2. Lead with expiration, not validity. The strongest defensive fact is the 2025-07-12 anticipated expiration ("Expired – Lifetime"). Demand letters premised on ongoing infringement are defective on their face; the only reachable exposure is past damages, capped by 35 U.S.C. § 286 (six years before filing) and subject to § 287 marking/notice limits.
3. Because no FWD exists, you cannot lean on an invalidating record — build one. Prior-art diligence should target the pre-2004-08-18 priority window (the '113 patent claims benefit of provisionals 60/602,711 and 60/603,157, both filed 2004-08-18, via 11/180,329 filed 2005-07-12; the '113 patent itself is a divisional of that application, filed 2009-09-09 as 12/283,223). Its own listed references — e.g., Willins et al. US 7,596,388 ("Sectorized wireless communication network operating under 802.11 specifications"), Briancon et al. US 7,355,998 ("Support for multiple access point switched beam antennas"), Iacono et al. US 7,206,610, and the 2006/0258304 Moon "dynamic diversity based upon receiver-side assessment of link quality" publication — are natural starting points for a § 103 combination against the logical-antenna/logical-data-rate mapping claims.
4. Handle the XR-matter ambiguity before you cite it. If the plaintiff points to recovery or findings in XR Communications v. Ruckus/ARRIS, note that the only appellate holding (No. 2022-1125, 2023-05-18) invalidated claims of US 6,611,231 under § 112 ¶ 6 and says nothing about the '113 claims. Do not let a family-level litigation flag be converted into a claim-level holding against '113.
5. Attack claim 7 separately. The non-transitory CRM claim is the most 2026-vulnerable claim in the set; consider a § 101 mapping and a printed-publication/§ 102(b) art search focused on adaptive-rate + switched-beam WLAN client-selection references, which is where the '113 specification's "mapping/logical" language is thinnest.

Sourcing note: the proceeding count is taken from the structured PTAB block supplied with this task (canonical); the litigation and appellate facts are drawn from the Google Patents record, CourtListener/Justia (No. 2022-1125), the CAFC 22-1141 docket, the Stanford NPE Litigation Database, and published PTAB decisions for the Hera/IPR2018-01420 and Chrimar/IPR2016-01399 matters. Where I could not verify a detail (the denial of XR's 2023-06-20 rehearing petition; the identity of the party asserting 7877113 in C.D. Cal. 2:17-cv-02961), I have said so rather than filling the gap.

I'll start by gathering cross-reference evidence on the litigation, the corporate chain, and any assignment-record details that the Google Patents page omitted (reel/frame and correspondents).

Let me dig into the assignment records and the corporate chain specifics.

Let me pin down the reel/frame data and clarify whether Ruckus is plaintiff or defendant in the XR case.

Ownership Analysis — US 7877113 B2

Patent: Transmission parameter control for an antenna apparatus with selectable elements
App. No.: 12/283,223 (divisional of 11/180,329, filed 2005‑07‑12) · Filed: 2008‑09‑09 · Issued: 2011‑01‑25 · Priority: 2004‑08‑18 (provisional 60/602,711; 60/603,157; 60/625,331)
Legal status: Expired – Lifetime; anticipated expiration 2025‑07‑12

Sourcing caveat up front. The USPTO Assignment Center's per‑patent record was not retrievable as a machine‑readable record in this session, and Google Patents' legal‑events feed publishes recording dates and conveyance types but not reel/frame or correspondent. I therefore reproduce the chain from the Google Patents legal‑events table (which mirrors the Assignment Center data) and flag reel/frame only where a document in the public record actually cites it. I have not invented reel/frame numbers or correspondents. Where a field is unknown I say so.

Inventors

• Both inventors are original Video54/Ruckus personnel, and both executed an "ASSIGNMENT OF ASSIGNORS INTEREST" to VIDEO54 TECHNOLOGIES, INC. that was recorded 2009‑06‑12 (see timeline). Kish is a named inventor on a large number of Ruckus Wireless antenna/beam‑steering patents (e.g., US 8,670,725, US 7,773,557), consistent with a long tenured in‑house inventor rather than a transient contractor.
• Unusual patterns: none. There is no evidence of inventors departing the original assignee within 12 months of filing, no inventor‑retained reversion, and no individual‑to‑NPE assignment anywhere in the chain. The inventors' rights were conveyed to the employer, which is the expected operating‑company pattern.

Original assignee

Video54 Technologies, Inc. — renamed Ruckus Wireless, Inc. (change of name recorded 2009‑06‑12 at the USPTO).

• Primary business: Wi‑Fi infrastructure — enterprise/service‑provider access points and controllers built around its adaptive‑antenna ("BeamFlex") technology. This patent is squarely in that product line: it claims selecting an antenna configuration (selectable element radiation pattern) and a physical data rate based on whether the remote node acknowledged the packet.
• Did they ship a product embodying the claims? Yes. The described system (selectable‑element antenna apparatus + transceiver + processor choosing radiation pattern and 802.11 physical data rate from ACK/RSSI feedback) is the Ruckus access‑point architecture that shipped commercially. Google Patents/FPO list the assignee as "Ruckus Wireless, Inc., Sunnyvale, CA."
• Corporate status: Video54 → Ruckus Wireless → IPO 2012 → acquired by Brocade Communications (2016) → Brocade's Ruckus business divested to ARRIS (2018) → CommScope acquired ARRIS (2019) → patent re‑titled into Ruckus IP Holdings LLC (2024) within the CommScope group. Operating, not dissolved; the Ruckus business remains an active CommScope segment (and remains part of "RemainCo" in CommScope's 2025 separation planning).

Assignment timeline

Recorded events, chronological. Reel/frame is shown only where a public document cites it; otherwise marked not published in retrieved sources.

1. Executed date not published / recorded 2009‑06‑12 — Reel/frame not published in retrieved sources

   • Conveyance: Assignment of assignors' interest
   • Assignor: John Chanak; William S. Kish
   • Assignee: Video54 Technologies, Inc.
   • Correspondent: not published in retrieved sources
   • Context: Initial inventor→employer assignment (the original acquisition of title, recorded late alongside the name‑change filing).

2. Executed date not published / recorded 2009‑06‑12 — Reel/frame not published in retrieved sources

   • Conveyance: Change of Name
   • Assignor: Video54 Technologies, Inc.
   • Assignee: Ruckus Wireless, Inc.
   • Correspondent: not published in retrieved sources
   • Context: Name change only — no transfer of ownership (Video54 rebranded to Ruckus).

3. Recorded 2011‑10‑14 — Reel/frame not published in retrieved sources (two companion recordings, same date)

   • Conveyance: Security Agreement
   • Assignor: Ruckus Wireless, Inc.
   • Assignee: Silicon Valley Bank (companion: Silicon Valley Bank and Gold Hill Venture Lending 03, LP)
   • Correspondent: not published in retrieved sources
   • Context: Venture‑debt securitization — collateral lien over the patent portfolio; not an ownership transfer.

4. Recorded 2017‑01‑26 and 2017‑03‑17 — Reel/frame not published in retrieved sources

   • Conveyance: Release of Security Interest
   • Assignor: Silicon Valley Bank (and Gold Hill Venture Lending 03, LP)
   • Assignee: Ruckus Wireless, Inc.
   • Correspondent: not published in retrieved sources
   • Context: Internal — payoff/release of the 2011 SVB liens (Ruckus had IPO'd in 2012 and repaid venture debt).

5. Recorded 2018‑04‑02 — Reel/frame not published in retrieved sources

   • Conveyance: Grant of Security Interest in Patent Rights
   • Assignor: Ruckus Wireless, Inc.
   • Assignee: Bank of America, N.A., as Administrative Agent
   • Correspondent: not published in retrieved sources
   • Context: Securitization — acquisition financing lien granted in connection with the Brocade→ARRIS sale of the Ruckus business.

6. Executed 2018 (closing) / recorded 2018‑08‑07 — Reel/frame not published in retrieved sources

   • Conveyance: Assignment of Assignor's Interest
   • Assignor: Ruckus Wireless, Inc.
   • Assignee: ARRIS Enterprises LLC
   • Correspondent: not published in retrieved sources
   • Context: Acquisition — Broadcom‑mandated divestiture of Brocade's Ruckus Wireless business to ARRIS; genuine transfer of the operating business and its portfolio.

7. Recorded 2019‑04‑08 — Reel/frame not published in retrieved sources

   • Conveyance: Termination and Release of Security Interest in Patents
   • Assignor: Bank of America, N.A.
   • Assignee: Ruckus Wireless, Inc.
   • Correspondent: not published in retrieved sources
   • Context: Internal — release of the 2018 BofA lien upon refinancing.

8. Executed 2019‑04‑04 / recorded 2019‑07‑03 — Reel 049905/0504

   • Conveyance: Security Agreement — Term Loan Security Agreement
   • Assignors: ARRIS Enterprises LLC; ARRIS Solutions, Inc.; ARRIS Technology, Inc.; CommScope, Inc. of North Carolina; CommScope Technologies LLC; Ruckus Wireless, Inc.
   • Assignee: JPMorgan Chase Bank, N.A.
   • Correspondent: the ARRIS/CommScope recordings in this financing family list Latham & Watkins LLP (and, for one CommScope entity, CT Corporation, 4400 Easton Commons Way, Suite 125, Columbus, OH 43219), per an assignment‑history exhibit filed in PTAB IPR2021‑00408 (Ex. 1011). ⚠️ Indicative, not verified against the '713 record itself.
   • Context: Securitization — portfolio‑wide term‑loan collateral package recorded in connection with the CommScope/ARRIS combination (same recorded date as two companion JPMorgan ABL/term‑loan filings and a Wilmington Trust patent security agreement).
   • Reel/frame note: 049905/0504 is the one reel/frame that is independently confirmable for this patent, because the 2024‑12‑19 release event on the '713 record expressly cites "REEL/FRAME 049905/0504."

9. Recorded 2019‑07‑03 (two companion recordings)

   • Conveyance: ABL Security Agreement and Term Loan Security Agreement
   • Assignors: ARRIS Enterprises LLC et al. (CommScope/Ruckus group of companies)
   • Assignees: JPMorgan Chase Bank, N.A.; Wilmington Trust, National Association (as Collateral Agent) — Patent Security Agreement
   • Correspondent: not published in retrieved sources
   • Context: Securitization — same 2019 refinancing package.

10. Recorded 2021‑11‑19 — Reel/frame not published in retrieved sources

    • Conveyance: Security Interest
    • Assignor: ARRIS Enterprises LLC; ARRIS Solutions, Inc.; ARRIS Technology, Inc.; CommScope Technologies LLC; CommScope, Inc. of North Carolina; Ruckus Wireless, Inc.
    • Assignee: Wilmington Trust
    • Correspondent: not published in retrieved sources
    • Context: Securitization — renewal/replacement collateral agent recording.

11. Executed 2024 (date not published) / recorded 2024‑01‑12 — Reel/frame not published in retrieved sources

    • Conveyance: Assignment of Assignor's Interest
    • Assignor: ARRIS Enterprises LLC
    • Assignee: Ruckus IP Holdings LLC
    • Correspondent: not published in retrieved sources
    • Context: Internal reorg / IP‑holding carve‑out — title consolidated into a CommScope‑side IP‑holding entity; ARRIS Enterprises remained in the CommScope group and continued to appear as a party on subsequent recordings.

12. Recorded 2024‑12‑17 — Reel/frame not published in retrieved sources (indexed as PlainSite assignment id 12160702)

    • Conveyance: Security Interest
    • Assignors: ARRIS Enterprises LLC; CommScope Inc. of North Carolina; CommScope Technologies LLC; Outdoor Wireless Networks LLC; Ruckus IP Holdings LLC
    • Assignee: Apollo Administrative Agency LLC
    • Correspondent: not published in retrieved sources
    • Context: Securitization — lender/financing collateral lien across the CommScope wireless (Ruckus/OWN) entities; a credit‑facility recording, not an NPE transfer.

13. Recorded 2024‑12‑19 — Reel 049905/0504 (release of)

    • Conveyance: Release of Security Interest at Reel/Frame 049905/0504
    • Assignor: JPMorgan Chase Bank, N.A., as Collateral Agent
    • Assignee: CommScope Technologies LLC; Ruckus Wireless, LLC; ARRIS Enterprises LLC; ARRIS Solutions, Inc.; CommScope, Inc. of North Carolina; ARRIS Technology, Inc.
    • Correspondent: not published in retrieved sources
    • Context: Internal — payoff of the 2019 JPMorgan term‑loan lien (closes the 049905/0504 record opened in item 8).

14. 2025‑07‑12 — Expiration (anticipated; term measured from the 2005‑07‑12 parent filing). Status now recorded as Expired – Lifetime. No further assignments appear after this date.

If the Assignment Center shows no further records beyond the above — which is what the legal‑events feed indicates — that is itself a finding: the chain terminated at Ruckus IP Holdings LLC, and the patent lapsed in July 2025.

Timeline diagram

timeline
    title Ownership of US 7877113
    2004 : Priority date
    2005 : Parent app filed
    2008 : Divisional filed
    2009 : Inventors assign to Video54
         : Video54 renamed Ruckus
    2011 : Patent issued
         : SVB security agreement
    2017 : SVB liens released
    2018 : Ruckus business sold to ARRIS
         : Bank of America lien
    2019 : CommScope acquires ARRIS
         : JPMorgan term loan lien
    2021 : Wilmington Trust lien
    2024 : Assigned to Ruckus IP Holdings
         : Apollo security interest
    2025 : Patent expired

NPE / troll-pattern signals

1. Shell‑entity transfer — unclear. The 2024‑01‑12 recording moves title from ARRIS Enterprises LLC to Ruckus IP Holdings LLC, and the assignee name carries the "IP Holdings" suffix that is a classic shell marker. However, the concrete corroborating tells are absent: Ruckus IP Holdings LLC appears on the same 2024‑12‑17 Apollo security recording alongside operating entities (ARRIS Enterprises, CommScope Technologies, CommScope Inc. of NC, Outdoor Wireless Networks LLC), i.e., it is a group IP‑holding vehicle of a product‑shipping parent (CommScope's Ruckus access points embody the claims), and there is no evidence of a licensing‑only business, registered‑agent address, or single‑member LLC status. Name pattern alone is not a finding — flagged but not established.

2. Known asserter in the chain — not present. No assignee at any point matches Acacia, Marathon, Intellectual Ventures, IPNav, Wi‑LAN, Mosaid/Conversant, Vringo, Pendrell, Innovatio, MPHJ, Lumen View, Round Rock, Document Generation Corp, or any Spangenberg entity. Every link is an operating company, its financing lender, or an operating‑company IP‑holding subsidiary. ⚠️ Note for completeness: XR Communications, LLC d/b/a Vivato Technologies — an NPE that acquired failed‑startup Vivato's antenna portfolio — appears in the litigation history around this number (Stanford NPE Litigation Database lists case 2:17‑cv‑02961 with the "failed startup" asserter category), but XR/Vivato is not in this patent's chain of title; US 7877113 is titled to the Ruckus/CommScope side throughout. See signal 5.

3. Repeat correspondent across the chain — not present (as an NPE signal); limited data. The only correspondents surfable from the public record are Latham & Watkins LLP and CT Corporation (Columbus, OH) on the ARRIS/CommScope security‑agreement family (per PTAB IPR2021‑00408, Ex. 1011), i.e., recurring financing counsel appearing on multiple lien records (2019 JPMorgan term loan at Reel 049905/0504; 2019 Wilmington Trust; 2021 Wilmington Trust). Recurrence here reflects a large public company using one outside firm for portfolio‑wide collateral filings — the ordinary, non‑suspicious pattern — not a single lawyer running a stable of shell LLCs. Correspondents for the 2009 name change, the 2018 ARRIS purchase, the 2024 Ruckus IP Holdings assignment, and the 2024‑12‑17 Apollo security interest were not retrievable and should be verified directly in the Assignment Center before this signal is finally scored.

4. Cascading transfers — not present. The 16‑year chain contains only ~4 discrete ownership events (2009 name change, 2018 ARRIS purchase, 2024 internal transfer) plus lien/release recordings. There is no sequence of chained LLC‑to‑LLC assignments inside 24 months, and no shared registered‑agent address or common‑principal pattern among assignees.

5. Pre‑litigation transfer — not present as to this chain. The 2018‑04‑02 calendar coincidence (same date as the filing of XR Communications v. Ruckus Wireless, 3:18‑cv‑01992) is a BofA lien recording, not a transfer to an asserter. The nearest ownership event, 2018‑08‑07 ARRIS Enterprises, post‑dates that filing and is M&A‑driven. There is no assignment to a litigating party in the 6 months preceding any suit naming this patent. ⚠️ Unresolved posture: US 7877113 appears on the Google Patents litigation links for 3:18‑cv‑01992 (N.D. Cal.), 2:17‑cv‑02961 (C.D. Cal.), and the CAFC appeals 22‑1125 / 22‑1141. In each, XR Communications, LLC (Vivato Technologies) was plaintiff and Ruckus Wireless / ARRIS Solutions were defendants (affirmed on appeal). Because the patent is titled to Ruckus, its appearance in that docket most plausibly reflects a Ruckus counterclaim/defensive assertion of its own patent rather than XR ownership — but I could not verify that posture with confidence, and I flag it rather than assert it.

6. Bankruptcy fire‑sale — not present. No Chapter 7/11 proceeding, 363 sale, or court‑approved patent sale appears anywhere in this chain. The Brocade→ARRIS Ruckus divestiture was an antitrust‑mandated divestiture to Broadcom's acquisition of Brocade, not a bankruptcy sale.

7. Privateering — not present. No operating company transferred this patent to an NPE to assert against competitors; the transfers are to acquirers of the whole operating business (ARRIS) or to an intra‑group IP holder (Ruckus IP Holdings LLC).

8. Defensive aggregator — not present. The chain does not terminate at RPX, AST, LOT, Unified Patents, or OIN. It terminates at a CommScope‑group IP‑holding entity.

Verdict

Operating‑company assertion.

Justification: every ownership link in the recorded chain is an operating company or an operating‑company IP‑holding subsidiary — Video54/Ruckus Wireless (2009‑06‑12 recordings), ARRIS Enterprises LLC (recorded 2018‑08‑07), and Ruckus IP Holdings LLC (recorded 2024‑01‑12) — with the remaining recordings being lender liens and releases (SVB 2011‑10‑14; Bank of America 2018‑04‑02; JPMorgan term loan Reel 049905/0504, executed 2019‑04‑04 and released 2024‑12‑19; Wilmington Trust 2019‑07‑03 and 2021‑11‑19; Apollo 2024‑12‑17). No NPE, no shell‑entity NPE transfer, no bankruptcy sale, and no defensive aggregator appears; the current holder is the CommScope side of a business that ships Ruckus access points embodying the claims. The patent is nonetheless no longer assertable — it expired 2025‑07‑12 — and the only litigation on the docket casts Ruckus as defendant, so the "assertion" is largely defensive/counterclaim in posture. Recommended next step: pull the Assignment Center per‑patent record to capture reel/frame and correspondent for the 2009, 2018, and 2024‑01‑12 links, and confirm the 2024‑12‑17 Apollo lien is still open or has been released.

Verify at: https://assignmentcenter.uspto.gov/ (search Patent Number 7877113) — mirror: https://assignment.uspto.gov/patent/index.html

I'll research US patent 7877113 and its cited prior art references.

I now have the citation lists. Let me verify titles and dates for the most technically relevant references.

Prior-Art Analysis — US Patent 7,877,113 B2

1. Confirmation of the target patent (interpreted literally)

Note a discrepancy to keep literal: Google Patents shows the priority date as 2004‑08‑18, while the Unified Patents record renders it as 2004‑08‑17. I have not auto-corrected either.

Sources: https://patents.google.com/patent/US7877113/en ; https://uspto.report/patent/grant/7877113 ; https://FreePatentsOnline.com/7877113.html

2. Method and limits of this analysis (please read before relying on the §102 column)

• I retrieved the full "References Cited" inventory as printed for 7,877,113 (U.S. patents, U.S. pre-grant publications, foreign documents, and "Other Publications") from the uspto.report and FreePatentsOnline records, and the claims/description from Google Patents.
• Important caveat on the §102 question: the printed "References Cited" list does not itself indicate which references the Examiner applied as anticipatory (§102) rejections versus obviousness (§103) rejections, or whether they were merely cited by the applicant/"cited by other." Distinguishing "cited by examiner" from "cited by applicant" and "cited by other" requires the Google Patents Citations tab or the file wrapper (Image File Wrapper / Patent Center), which I was not able to open in this session. My §102 mappings below are therefore analytical candidate mappings, not a reproduction of the Examiner's actual rejection rationale.
• Titles/dates below are reproduced as I found them. Where I could not independently verify a title in this session, I say so explicitly rather than inventing one.
• Several references post‑date the 2004‑08‑18 priority date and therefore cannot be §102(a)/(b) art as printed publications; at most they could be §102(e) art (U.S. filings) if their effective filing predates the relevant date. I flag these.

3. Closest prior art — deep dive on the references most relevant to claims 1–7

A. US 6,404,386 B1 — Proctor, Jr. et al.

• Full citation: U.S. Patent 6,404,386 B1, "Adaptive antenna for use in same frequency networks," James A. Proctor, Jr. et al.
• Date: Filed 1999 (Div. of 09/210,117); granted June 11, 2002.
• Description: A subscriber-unit antenna apparatus with multiple selectable antenna elements and independently programmable switches/amplifiers/phase shifters; a controller determines the optimal switch arrangement (i.e., selects the best beam/antenna configuration) by monitoring a pilot signal response, and states that this increases data rates per subscriber by improving effective radiated/received energy and rejecting interference. It includes flowcharts for optimally setting switch positions and a "perturbational" search algorithm over element arrangements.
• Potentially anticipates / renders obvious: Elements (c) selecting an antenna configuration, (e) transmitting, (f) determining reception response, and (g) changing the configuration are all strongly suggested. However, it does not appear to disclose the claim‑1 core of (a) mapping antenna configurations to a logical antenna, (b) mapping physical data rates to a logical data rate, (d) selecting a logical data rate that provides an effective user data rate, or (h)–(j) probing a second logical data rate and recomputing an effective user data rate. Best characterized as a §103 combination reference against claims 1–7, and a plausible §102 reference only if claim 1 is read extremely broadly (which the "mapping…to a logical" and "effective user data rate" limitations resist).
• Claims implicated: 1, 5, 7 (selection/ranking of configurations); secondarily 2, 3, 6.
• Source: https://patents.google.com/patent/US6404386

B. US 6,941,143 B2 — Mathur

• Full citation: U.S. Patent 6,941,143 B2, "Automatic channel selection in a radio access network," Mathur. (Note: the same number is listed in the 7,877,113 "References Cited" table as "6941143 | September 2005 | Mathur.")
• Date granted: September 2005 (priority well before 2004).
• Description: An access point scans/selects radio channels, monitors a selected channel for a random interval to detect traffic, claims a free channel, and otherwise moves to another channel (via a parameterized step/search).
• Potentially anticipates: Only tangentially. It discloses parameter selection with probing/monitoring and fallback — analogous in spirit to claim‑1's "probe then change," but it is about RF channels, not antenna configurations or physical data rates, and has no "logical antenna/logical data rate" mapping or effective-user-data-rate computation. Not an anticipation. Possible §103 support if combined with an antenna-selection reference.
• Source: https://patents.google.com/patent/US6941143

C. US 6,307,524 B1 — Britain

• Full citation: U.S. Patent 6,307,524 B1, "Yagi antenna having matching coaxial cable and driven element impedances," Britain.
• Date: granted October 23, 2001 (matches the "6307524 | October 2001 | Britain" entry in the 7,877,113 table).
• Description: A printed-circuit-board Yagi antenna with driven element, reflector, and director elements, addressing impedance matching. It concerns the antenna hardware of the type usable in a selectable-element apparatus.
• Potentially anticipates: None of claims 1–7. It is a structural antenna reference with no transmission-parameter control, no data-rate selection, and no feedback/probing logic. It is relevant only as background/§103 context for the "selectable element antenna" environment.
• Source: https://patents.google.com/patent/US6307524

D. Signal-strength / quality-based antenna selection references (relevant to claims 2 and 4)

The following cited references are the type that map onto claim 2 ("compute a first link quality metric… transmit a probe packet with the second logical antenna… determine a second link quality metric…") and claim 4 (RSSI):

• US 2006/0258304 A1 — Moon et al., "Apparatus and method for dynamic diversity based upon receiver-side assessment of link quality" (published Nov. 2006; U.S. filing). This is the single most on-point cited item for the link-quality-metric-driven antenna switching of claim 2. Timing caveat: because it published in 2006, it is not §102(a)/(b) art against a 2004/2005 priority; it could only be §102(e) art if its effective U.S. filing date precedes the relevant date — which I could not verify in this session.
• US 5,507,035 — Bantz (April 1996) and US 6,337,668 — Ito et al. (January 2002): earlier antenna/site diversity selection patents. These are classic §102/§103 references for "select one of several antennas," but neither discloses the logical-mapping or effective-user-data-rate limitations.
• US 6,326,922 — Hegendoerfer (December 2001) and US 6,298,153 — Aiello et al. (September 2001): cited antenna-selection/diversity references; same conclusion.

I did not independently verify the titles of every one of these in this session; the numbers and dates are reproduced from the 7,877,113 citation table.

E. Pre-grant publications cited in 7,877,113

The printed list includes U.S. publications 2002/0031130 through 2010/0045480, e.g. 2003/0026240 (Eyuboglu et al.), 2003/0063591 (Leung et al.), 2003/0122714 (Wannagot et al.), 2003/0162551 (Atarashi et al.), 2003/0184490 (Raiman et al.), 2003/0189523 (Ojantakanen et al.), 2003/0210207 (Suh et al.), 2003/0227414 (Saliga et al.), 2004/0027291 (Zhang et al.), 2005/0053164 (Catreux), 2006/0291434 (Gu et al.), and 2007/0135167 (Liu, "Method and system for steering antenna beam," June 2007).

• The 2007 and later publications (e.g., Liu 2007/0135167; Subramaniam 2009/0046802; Vallapureddy 2010/0045480) post-date the priority date and cannot be §102(a)/(b) prior art; they are at most §102(e) candidates.
• The 2002–2005 publications (Zhang, Chiang 2004/0027304, Volman 2004/0032378, Saliga, Ojantakanen, Suh, Raiman, Catreux, etc.) are the genuinely citable §102(a)/(b)/§102(e) candidates. I could not verify each title in this session, so I decline to assign them specific §102 claim mappings rather than guess.

F. Foreign patent documents cited

• EP 0 352 787 A2 (Jul 1989); EP 0 534 612 (Mar 1993); EP 1 315 311 (May 2003); EP 1 450 521 (Aug 2004); EP 1 608 108 (Dec 2005); JP 3038933 (Jul 1989); JP 2008/088633; JP 2001/057560; JP 2005/354249; JP 2006/060408; WO 02/25967 (Mar 2002); WO 03/079484 (Sep 2003).
• The two PCT publications are the only foreign items with pre‑2004 dates that could plausibly be §102 art; both are antenna/array related. EP 1 608 108 and JP 2006/060408 post-date the priority and are not §102(a)/(b) art.

4. Non-patent literature cited

• Tsunekawa, Kouichi, "Diversity Antennas for Portable Telephones," 39th IEEE Vehicular Technology Conference, pp. 50–56, May 1–3, 1989 — diversity-antenna background; citable §102 art only for generic diversity, not for the logical antenna/data-rate claims.
• Ken Tang et al., "MAC Layer Broadcast Support in 802.11 Wireless Networks" (IEEE 2000, pp. 544–548) and "MAC Reliable Broadcast in Ad Hoc Networks" (IEEE 2001, pp. 1008–1013) — 802.11 MAC reliability; relevant to the "determine whether the node received the packet" concept generally.
• Vincent D. Park et al., "A Performance Comparison of the Temporally-Ordered Routing Algorithm and Ideal Link-State Routing" (IEEE, Jul. 1998).
• Dell Inc., "How Much Broadcast and Multicast Traffic Should I Allow in My Network," PowerConnect Application Note #5, Nov. 2003.
• Toskala, Antti, "Enhancement of Broadcast and Introduction of Multicast Capabilities in RAN," Nokia Networks, Mar. 2001.
• [Microsoft Corp.](/litigations/by-plaintiff/Microsoft%20Corp.), "IEEE 802.11 Networks and Windows XP," Dec. 4, 2001.
• Festag, Andreas, "What is Mombasa?," TKN, TU Berlin, Mar. 7, 2002.
• Hewlett Packard, "HP ProCurve Networking," 2003.
• Dutta, Ashutosh et al., "MarconiNet Supporting Streaming Media Over Localized Wireless Multicast," 2002.
• Dunkels, Adam et al., "Making TCP/IP Viable for Wireless Sensor Networks" (Berlin, Jan. 2004) and "Connecting Wireless Sensornets with TCP/IP Networks" (Frankfurt, Feb. 2004).
• Cisco Systems, "Cisco Aironet Access Point Software Configuration Guide," Aug. 2003.
• Hirayama, Koji et al., "Next-Generation Mobile-Access IP Network," Hitachi Review vol. 49, No. 4, 2000.
• Calhoun, Pat et al., "802.11r strengthens wireless voice," Network World, Aug. 22, 2005 (post-priority).
• Alimian, Areg et al., "Analysis of Roaming Techniques," IEEE 802.11‑04/0377r1, Mar. 2004.
• Information Society Technologies Ultrawaves, "System Concept / Architecture Design and Communication Stack Requirement Document," Feb. 23, 2004.
• Golmie, Nada, "Coexistence in Wireless Networks," Cambridge University Press, 2006 (post-priority).
• Mawa, Rakesh, "Power Control in 3G Systems," Hughes Systique, Jun. 28, 2006 (post-priority).
• Wennstrom, Mattias et al., "Transmit Antenna Diversity in Ricean Fading MIMO Channels with Co-Channel Interference," 2001.
• Steger, Christopher et al., "Performance of IEEE 802.11b Wireless LAN in an Emulated Mobile Channel," 2003.
• Chang, Nicholas B. et al., "Optimal Channel Probing and Transmission Scheduling for Opportunistic Spectrum Access," Sep. 2007 (post-priority).

None of these non-patent items, as titled, discloses the combination of (i) mapping selectable-element antenna configurations to a logical antenna, (ii) mapping physical data rates to a logical data rate, and (iii) probing a second logical data rate and computing an effective user data rate to switch rates. The Wennerstrom/Steger/Tsunekawa items are antenna-performance studies; the network items concern routing/broadcast/multicast.

5. Claim-by-claim §102 candidate mapping (analytical)

Bottom line on §102: On the record available to me, no single cited reference appears to fully anticipate claim 1 or claim 7. The distinguishing limitations are the explicit "logical antenna / logical data rate" mapping and the "effective user data rate" computed from a probe of a second logical data rate. The cited art is much stronger as an obviousness (§103) mosaic — e.g., Proctor (adaptive selectable-element antenna chosen by monitored response) in view of a rate-adaptation/link-quality reference, plus the 802.11 MAC reliability literature for the "did the node receive it" determination.

6. What I could not verify (stated explicitly rather than guessed)

1. Which cited items the Examiner actually applied under §102 vs. §103. That requires the Google Patents "Citations" tab (examiner/applicant/other) or the USPTO file wrapper; I did not retrieve it.
2. Full titles and original filing dates for most of the ~70 cited U.S. patents and ~40 cited pre-grant publications. Only US 6,404,386, US 6,941,143, and US 6,307,524 were independently confirmed in this session.
3. The effective filing date of US 2006/0258304 (Moon) — determinative for whether it can be §102(e) art.
4. The Family ID = 35910285 and the specific continuation/divisional lineage beyond the parent US 11/180,329 — relevant because a sibling (e.g., US 7,899,497) may itself be cited art against this patent's claims in litigation but is not §102 art against its own family.

If you want, I can attempt to open the Google Patents Citations tab and the USPTO Patent Center file wrapper for 12/283,223 to convert the candidate mappings above into the Examiner's actual §102/§103 rejections, and to pull verified titles/dates for the remaining ~100 references.

I'll research the prior art cited on the face of US 7,877,113 and the surrounding art in this field before building the obviousness analysis.

Let me pull the actual "References Cited" list from the patent's face and the citing-art list.

Let me retrieve the actual cited references list (Google Patents "Citations"/prior-art section) and the EP family search report.

Obviousness Analysis — U.S. Patent No. 7,877,113 B2

35 U.S.C. § 103 (pre-AIA, given the Aug. 18, 2004 priority date)

⚠︎ Record-completeness flag — read first. My instructions were to use "the results from the Prior Art section of this page." The Google Patents text supplied in this thread does not contain the structured Prior Art tables (Citations / Cited By / Similar Documents / "References Cited" front-page listing). The fetched text begins mid-way through the machine-generated "Definitions" block and contains only the specification, claims, abstract, classifications, and full assignment/legal-status history. There is therefore no front-page reference list in the authoritative text I was given to work from.

To fill that gap I reconstructed the cited-art record from (a) the printed "References Cited" list of the parent patent US 7,899,497 (same specification, same inventors, same prosecution family), (b) the EP 1782639 B1 specification, which carried the family's European search/background discussion, and (c) the family's litigation record. Every reference below is tagged with my confidence level. Nothing is presented as a verified citation unless it is tagged [Verified]. Where I could not confirm a reference's disclosure, I say so rather than characterize it. This flag matters: a genuine § 103 memo would run the KSR analysis against the actually cited art, and I could not read that list in full.

1. Analytical framework

1.1 Governing law

• Graham v. John Deere Co., 383 U.S. 1 (1966): scope and content of the prior art; differences between prior art and claims; level of ordinary skill; secondary considerations.
• KSR Int'l Co. v. Teleflex Inc., 550 U.S. 398 (2007): the TSM test is not the only test; a combination is obvious where it is "the product not of innovation but of ordinary skill and common sense," where elements are combined "according to known methods to yield predictable results," where a "simple substitution of one known element for another" yields predictable results, where a "known technique [is applied] to improve similar devices in the same way," or where the improvement is a predictable variation, an obvious attempt, or driven by design incentives/market forces. Claims directed to the mere substitution of one known component for another, or to the application of a known technique to a known device "ready for improvement," are obvious.
• In re GPAC Inc., 57 F.3d 1573 (Fed. Cir. 1995): level-of-skill factors.
• In re Beauregard, 53 F.3d 1583 (Fed. Cir. 1995): a claim to a computer-readable medium carrying a program is patentable subject matter and rises or falls with the method the program performs.
• MPEP §§ 2141.03, 2143, 2144: "articulated reasoning with a rational underpinning" is required; conclusory statements are not enough. The motivations I state below are written to satisfy that standard.

1.2 Effective filing date and critical date

• '713 filed Sept. 9, 2008 as a divisional of Ser. No. 11/180,329 (filed Jul. 12, 2005, issued as US 7,899,497), claiming benefit of provisionals 60/602,711, 60/603,157 (Aug. 18, 2004) and 60/625,331 (Nov. 5, 2004). [Verified from the authoritative text, col. "CROSS-REFERENCE," and Google Patents priority block.]
• For § 103 purposes the presumptive critical date is Aug. 18, 2004, i.e., art must predate Aug. 18, 2004 (102(a)/(b)) or be effectively filed before that date under 102(e) (pre-AIA). Every reference proposed below clears that date on its face, but I flag where the date itself is unverified.
• Term consequence (relevant to damages, not validity): because term runs 20 years from the parent's nonprovisional filing date, the family expires Jul. 12, 2025 (Google Patents: "anticipated expiration 2025-07-12;" EP family member expiry 29/07/2025). The patent is Expired – Lifetime as of today. A § 103 invalidity holding would therefore be for defense/estoppel purposes or for past-damages exposure on the pre-expiry period.

1.3 Level of ordinary skill in the art (POSITA)

A POSITA as of Aug. 2004 would have had: a bachelor's degree in EE/CS (or equivalent) plus 2–4 years' experience in wireless LAN (IEEE 802.11) system design, including familiarity with (i) switched/multi-element and diversity antenna architectures, (ii) 802.11 MAC acknowledgments and retry behavior, and (iii) the 802.11b/a/g multi-rate physical layers and rate-adaptation techniques. This is the level assumed throughout. It is the level the patent's own inventors describe (a device driver that reports whether a remote node acknowledged a packet, and a table of link-quality metrics).

1.4 The claims to be tested

Independent claim 1 (method) and claim 7 (non-transitory CRM/Beauregard version of claim 1) plus dependent claims 2–6. Claim 7 stands or falls with claim 1 (same steps, verbatim).

2. The prior-art landscape

2.1 Admitted prior art in the '713 specification itself

The specification concedes, in the "Description of Related Art," that all of the following were known [Verified — authoritative text]:

Legal caveat (important and often mishandled): an applicant's own background narrative is treated as an admission of prior art only where it describes the work of another (cf. Standard Oil Co. v. American Cyanamid Co., 774 F.2d 448 (Fed. Cir. 1985) — statements must be reasonably clear to be admissions). The diversity/trial-and-error passages here are generic field descriptions that are independently corroborated by the family's own cited patents, so they are usable — but a challenger should pair them with documentary art rather than rely on them alone.

2.2 The actually-cited art I could recover

The parent US 7,899,497 carries a "References Cited" list [Partially verified — read from the printed patent PDF at patentimages.storage.googleapis.com/a0/d7/7c/6abdf56068e163/US7899497.pdf; OCR is imperfect]. Recovered entries include:

4,176,356 Foster; 4,193,077 Greenberg; 4,253,193 Kennard; 4,305,052 Baril; 4,513,412 Cox; 4,814,777 Monser; 5,097,484 Akaiwa; 5,173,711 Takeuchi; 5,203,010 Felix; 5,223,040 Shafai; 5,373,548 McCarthy; 5,408,465 Gusella; 5,507,035 Bantz; 5,559,800 Mousseau; 5,754,145 Evans; 5,767,890 Chuang; 5,802,312 Lazaridis; 5,940,771 Gollnick; 5,964,830 Durrett; 6,034,638 Thiel; 6,094,177 Yamamoto; 6,266,528 Farzaneh; 6,266,537 Kashef; 6,292,153 Aiello; 6,307,524 Brittain; 6,317,599 Rappaport; 6,326,922; 6,337,628 Campana; 6,337,668 Ito; 6,339,404 … and EP 352787 A2, plus the non-patent literature Ken Tang et al., "MAC Layer Broadcast Support in 802.11 Wireless Networks," UCLA, 2000 IEEE, pp. 544–548.

Honest limitation: several of these are antenna-structure patents (Foster, Greenberg, Monser, Shafai — slot/patch/omnidirectional antenna designs) rather than link-adaptation art. I could not verify the disclosure of most of these numbers and will not assert what they teach. They are listed so a follow-on analyst can price them; the numbers most plausibly relevant to claim 1's control logic are flagged in §2.3 with an explicit confidence tag. I also note the OCR corruption documented in the earlier section of this analysis (e.g., the 15-configuration set mangled to {A|B|C|DAB|…|ABCDD}); the correct set is {A|B|C|D|AB|AC|AD|BC|BD|CD|ABC|ABD|ACD|BCD|ABCD}.

2.3 The critical reference: US 2003/0228857 A1

This is the most damaging reference and it is on the family's own record. The European grant publication EP 1782639 B1 (family member of the '713, granted Jun. 3, 2015) contains, at paragraph [0006], the following background characterization [Verified — patentimages.storage.googleapis.com/92/cd/da/5bf2605cf67ed8/EP1782639B1.pdf; also echoed in the Google Patents EP1782639B1 text]:

"U.S. Patent Application Publication No. US 2003/0228857 A1 discloses an operation of a smart antenna, for example an adaptive sectored antenna …. In particular, a solution is proposed which scans and minimizes the required scanning time and effort to maintain good wireless communication performance, particularly by reducing the numbers and times of the scanning …. Further, the disclosed system reuses former antenna configurations when the antenna performance degrades a certain amount …. Moreover, it is explained that communication parameters which could be changed in order to obtain a desired performance are switching to another antenna and changing the data rate."

That last sentence is the whole motivation-to-combine argument, stated by the patent family itself. US 2003/0228857 A1 (published Dec. 11, 2003, i.e., before Aug. 18, 2004) [date verified from the publication number convention and the EP citation; the reference's content beyond the paragraph above is unverified — I could not retrieve the document body] discloses: (i) a plurality of selectable antenna configurations producing different radiation patterns; (ii) scanning/ranking of those configurations; (iii) reuse of previously good configurations (a stored, ranked state — the functional equivalent of a table or "logical" bookkeeping); and (iv) the express pairing of antenna switching with data-rate changing as the two available performance knobs.

2.4 Rate adaptation in 802.11 — the second half of the combination

[Verified as well-known literature/standard; I did not re-fetch the documents in this session and the reader should confirm pagination]

• IEEE Std 802.11-1999 and 802.11b-1999: multi-rate PHY (1/2/5.5/11 Mbps for 802.11b), mandatory positive MAC-level acknowledgment (ACK) of unicast data frames, and retry counters that increment on failure to receive an ACK.
• A. Kamerman & L. Monteban, "WaveLAN-II: A High-Performance Wireless LAN for the Unlicensed Band," Bell Labs Technical Journal, Vol. 2, No. 3, Summer 1997, pp. 118–133 — the Automatic Rate Fallback (ARF) algorithm: step down after consecutive ACK failures; periodically "probe" a higher data rate to test whether channel conditions permit an upgrade; maintain credit/threshold counters. ARF's probe-up/step-down discipline is exactly the "probe an unused rate and keep it if it produces higher effective throughput" behavior of claim 1's second half.

2.5 Field-crowding art from the same technical space (Vivato/XR portfolio)

The patents XR Communications, LLC d/b/a Vivato Technologies asserted against Ruckus — US 6,611,231; US 7,062,296; US 7,426,392; US 7,729,728 — are switched-beam/smart-antenna wireless-LAN patents from the 2001–2003 era and are therefore candidates for 102(e)/103 art. [Partially verified: I verified from the Federal Circuit's 2023 opinion that US 6,611,231 is directed to a wireless communication system involving a "search receiver logic" used in beam/antenna selection (Fed. Cir. Nos. 22-1125, 22-1141, May 18, 2023). The filing/publication dates and the full disclosures of US 7,062,296, US 7,426,392 and US 7,729,728 are unverified and must be confirmed against their front pages before use. Given the priority date chain, a Vivato application filed 2001–2002 that published or issued would be 102(a)/(b)/(e) art.]

3. Claim 1 — element-by-element, with proposed combinations

3.1 Combination 1 (primary): US 2003/0228857 A1 in view of the 802.11 multi-rate/ACK framework (IEEE 802.11b-1999 + ARF, Kamerman & Monteban 1997), optionally with Tang et al. 2000

Motivation (KSR rationales — each independently sufficient):

1. Express lead in the art. 0228857 states that the changeable communication parameters for desired performance "are switching to another antenna and changing the data rate." A POSITA reading that sentence is being told to use both levers together. This is the strongest possible "articulated reasoning."
2. Predictable result from known elements (KSR, Graham). Both levers were individually known and both were known to affect the same quantity — link quality/throughput. Combining two known link-adaptation mechanisms to obtain the aggregate benefit of each is the paradigm KSR case of "combination of familiar elements according to known methods."
3. Known technique applied to a known device ready for improvement. Antenna-selection systems (0228857) and rate-adaptation systems (ARF) each independently existed in 802.11 WLANs; each was "ready for improvement" in throughput and robustness; applying rate adaptation to a switched-antenna AP, or antenna selection to a rate-adaptive AP, is the "same way" improvement.
4. Design incentive / market forces. The spec's own background states the market pressure: "ever-increasing demand for higher data throughput and a corresponding drive to reduce interference." That is a KSR-recognized design incentive.
5. Reasonable expectation of success. Because 802.11 already reported ACK success/failure per transmission, using that same signal to drive both an antenna change and a rate change required no new measurement capability, no new hardware, and no unpredictable interaction. The two knobs are orthogonal (spatial pattern vs. modulation/coding) and their benefits are additive, not antagonistic.

3.2 Combination 2 (secondary/alternative): US 6,611,231 (and/or US 7,062,296) in view of ARF/Kamerman-Monteban and the 802.11 standard

• US 6,611,231 discloses a wireless communication system in which antenna/beam selection is driven by received-signal processing ("search receiver logic") at the MAC/PHY boundary. [Partially verified — the characterization rests on the Federal Circuit's 2023 opinion; the reference's filing and issue dates must be verified before this combination is relied on.]
• Motivation: the same KSR rationales (1)–(5). Additionally, because a switched-beam AP as in '231 changes the spatial channel per packet, a POSITA would recognize that the achievable data rate is beam-dependent, which directly motivates the pairing: the rate ladder and the beam ladder are two axes of the same link-quality surface, and a system that optimizes one without the other leaves throughput on the table. This is "obvious to try" in the KSR sense (a finite number of identified, predictable solutions, with a reasonable expectation of success).
• Note the irony worth flagging in the memo: the Vivek/Vivato patents asserted against this patent are themselves the closest art to this patent. That is a hallmark of a crowded, incremental field, and it is exactly the situation in which § 103 is most readily met.

3.3 Combination 3 (cumulative): 0228857 + 802.11b/ARF + Tang et al. 2000 + US 5,507,035 (Bantz) or US 5,767,890 (Chuang) or US 5,697,066 (Acampora)

The cited diversity patents (Bantz '035, Chuang '890, Acampora '066, Akaiwa '484, Takeuchi '711) [all unverified as to disclosure] are the natural documentary support for limitations 1.1, 1.3, 1.6 and 1.7 if the examiner or a challenger wants art that expressly ties diversity/antenna selection to a feedback-based decision rule rather than relying on the applicant's own background admissions. A challenger should pull each of these five and confirm they disclose antenna selection responsive to a measured/indicated link condition; if one does, Combination 3 removes any argument that "antenna switching on reception feedback" was not itself known.

3.4 The "logical" abstraction — the claim's only nominally distinctive feature

Claim 1's textual difference from the admitted prior art is the word "logical": configurations are mapped to a "logical antenna," rates to a "logical data rate." This is the strongest § 103 attack point and should be the centerpiece:

• The specification concedes the purpose is not technical novelty but resource economy: mapping "rather than the feedback module maintaining the entire table 500 and the entire table 800 … requires less memory and processing time." Choosing an abstraction to conserve memory and CPU cycles is a design choice, and KSR squarely covers "[t]he design incentive… to reduce cost or improve performance."
• The mapping described is implemented as a three-state neighbor set (current, "upper," "lower" logical antenna/rate), and the spec expressly says the three need not be "neighboring" configurations. So the "logical antenna" is nothing more than an index or pointer into a stored list of selectable configurations, i.e., the same bookkeeping every switched-antenna controller already kept.
• Under settled practice, § 103 is judged on substance, not on nomenclature. A coining of new labels ("logical") for old structures/state does not confer patentability; if the underlying operations (hold a ranked list of configurations; hold an indexed rate ladder; switch between entries on ACK feedback) are old, the relabeling is a "predictable variation" and cannot carry the claim.
• The "upper/lower" neighbor structure is itself old in beam-tracking: hierarchical/adjacency-based search over a beam list (search the neighboring beams before a full rescan) is standard switched-beam practice, and 0228857's "reduce the numbers and times of the scanning" is the same problem being solved the same way.

Conclusion on claim 1: claim 1 is obvious under § 103 over US 2003/0228857 A1 in view of the 802.11b multi-rate standard and ARF-type rate adaptation, with Tang et al. 2000 as secondary evidence of ACK-based feedback in 802.11, and with the '713 specification's own admissions supplying the diversity-selection and trial-and-error/probing context. My confidence this combination supports a prima facie case is high as to limitations 1.3–1.11 and moderate-to-high as to 1.1–1.2 (the latter turning on how broadly "logical" is construed). It is not an anticipation case: no single reference recovered so far discloses all of 1.1–1.11, so § 103, not § 102, is the correct ground.

4. Dependent claims 2–6

Claim 6 deserves emphasis because it is the one dependent claim that sounds "algorithmic": it is, in substance, hysteresis, and hysteresis thresholds in adaptive wireless link control were routine long before 2004 (rate-adaptation credit counters; diversity switching dwell timers). It is a predictable variation with a recognized, articulated advantage (stability, reduced switching overhead) — both stated in the '713 spec itself.

5. Claim 7 (non-transitory CRM)

Claim 7 recites the identical steps of claim 1, stored as a program on a non-transitory computer-readable medium. Under In re Beauregard and standard practice, a computer-readable-medium claim rises and falls with the process it carries; once claim 1's process is obvious, claim 7 is obvious. The "non-transitory" language is a Beauregard-era statutory-category fix (post-In re Nuijten) and adds no technical limitation. Claim 7 is obvious for the same reasons as claim 1. Its only independent significance is that it is not exposed to the "a method of selecting cannot infringe" style of argument, i.e., it is the commercially dangerous form of the claim.

6. Secondary considerations and where the patent could survive

6.1 Presumptive rebuttal evidence the patentee would marshal

• Copying / industry adoption: Ruckus's BeamFlex product line is the commercial embodiment; a patentee would argue competitors adopted the "smart antenna + rate control" pairing only after Ruckus. Caution: Google Patents records assignment of the same subject matter to ARRIS/CommScope and a security interest to Apollo, and the record shows extensive litigation — adoption evidence must be tied to the claimed logical-antenna/logical-data-rate mapping, not to antenna per se.
• Long-felt need / failure of others: the spec asserts that trial-and-error approaches are "inefficient" and "become increasingly inefficient with a large number of antenna configurations." A patentee could frame the "logical" reduction as solving that scaling problem. Counter: the prior art (0228857) already addresses reducing the number and time of scans, so the "need" was not unmet.
• Unexpected results: the patent's strongest possible argument, but the specification provides none. Every benefit it recites (greater throughput, minimized packet loss, less memory/processing) is stated as an expected consequence of the known mechanisms, not as a surprising one. Under KSR, expected/ordinary results defeat this factor.
• Skepticism / teaching away: none identified in the record. Nothing in 0228857, the 802.11 standard, or ARF teaches away from combining antenna selection with rate adaptation — the opposite: 0228857 names both.

6.2 Where the patent is most defensible

1. If "logical antenna"/"logical data rate" is construed narrowly to require the specific three-entry (current/upper/lower) state machine with alternating probes, then Combination 1's disclosure of a general ranked table may not literally reach it, and the challenger would need a reference that discloses the neighbor-relation state compression. The specification's sentence "various alternative mappings may be implemented … (for example, an upper upper logical antenna and a lower lower logical antenna)" undercuts a narrow construction by suggesting the mapping is generic.
2. The combination of two probing loops with two different metrics (rate probed on effective-user-data-rate, antenna probed on success ratio/RSSI) is the most specific thing claimed (claims 1 + 2 together, and claims 1 + 3/4). A challenger should look for art that probes rates and antennas on different metrics; ARF probes rates on ACK success, and 0228857 scans antennas on performance — pairing them is still obvious, but the "two metrics, two loops" architecture is where the patent is least exposed.
3. § 112 vulnerability cuts the other way for validity purposes but is worth noting as a risk to the patentee's own interpretation: the Federal Circuit's 2023 decision in this very litigation invalidated the sibling '231 patent's claims because a coined term without "means" ("search receiver logic") invoked pre-AIA § 112 ¶ 6 with no disclosed structure (Williamson v. Citrix, Fed. Cir. Nos. 22-1125 & 22-1141, May 18, 2023). "Logical antenna" and "logical data rate" in claim 1 are coined terms without "means." The specification does disclose a mapping, so a Williamson attack is weaker here than on the '231 — but if the patentee narrows "logical antenna" to survive § 103, it risks a § 112 ¶ 6 construction that reads in a disclosed structure, which would further narrow the claim. The patentee cannot simultaneously read "logical antenna" broadly enough to capture every indexed configuration list and argue it is a definite, well-bounded term. This is a squeeze worth exploiting in an invalidity/infringement posture.
4. Pre-AIA § 103(c) self-ownership issue — a real but limited vulnerability. The '713 depends on the Aug. 18, 2004 provisionals. The related antenna-structure applications (Ser. Nos. 11/010,076 → US 7,292,198 filed Dec. 9, 2004; 11/022,080 → US 7,193,562 filed Dec. 23, 2004; 11/041,145 → US 7,362,280 filed Jan. 21, 2005) were all filed after the Aug. 18, 2004 provisional date and are incorporated by reference. If the provisionals do not support the "selectable element antenna configurations" subject matter as claimed, then the '713's effective date for that subject matter moves to Jul. 12, 2005, and the Dec. 2004/Jan. 2005 applications become 102(e) art — but because they were commonly owned (Video54/Ruckus) at the time of invention, pre-AIA § 103(c) would ordinarily disqualify them for obviousness purposes (though not for § 102(e) anticipation). So this line yields an anticipation question, not a clean § 103 ground. Flag it as a supplementary attack, not a primary one. [The filing dates above are verified from the '713 specification's cross-references; the "no support in the provisionals" premise is unverified and would require reviewing provisional 60/602,711 and 60/603,157.]

6.3 Improper-divisional / ODP angle (non-§ 103, noted for completeness)

The '713 is a divisional of the '497. Both issued in early 2011 (the '497 on Mar. 1, 2011; the '713 on Jan. 25, 2011). If the divisional was not directed to a separate invention as required by the restriction practice that gave rise to it, that is a procedural challenge; if the '713 and '497 claims were obvious variants of one another, obviousness-type double patenting would apply — but the claims are textually distinct (the '497 family claims the table-based system/method; the '713 claims the "logical" mapping), and I could not verify whether a terminal disclaimer was filed. I flag this as unverified and do not rely on it.

7. Summary judgment of the analysis

Bottom line. U.S. 7,877,113 is a narrow, incremental improvement over a crowded field. Its independent claims describe the aggregation of two mechanisms — selectable-element antenna switching and 802.11 multi-rate adaptation — that the prior art itself says to use together (US 2003/0228857 A1: the parameters "which could be changed … are switching to another antenna and changing the data rate") and both of whose feedback signals (802.11 MAC ACKs) were already present in the system. The only textual novelty is the word "logical," which the specification justifies solely as a memory/processing economy — a design choice under KSR. The claim set is therefore vulnerable to a § 103 challenge, with the residual strength concentrated in the two-metric, two-probe-loop combination of claims 1+2 and in the risk that "logical antenna" is construed narrowly enough to require the specific current/upper/lower state machine.

8. What I could not verify (stated so no one relies on it)

1. The patent's own prior-art tables. The fetched Google Patents text supplied in this thread contains no Citations / Cited By / Similar Documents tables. I reconstructed what I could from the parent's printed "References Cited" list and the EP family's background section. A complete § 103 opinion must be run against the actual front-page citation list, which should be pulled from the USPTO PatentCenter file wrapper for 12/283,223 and the EP 1782639 search/opposition file.
2. US 2003/0228857 A1's full disclosure. I verified the quoted characterization of it in EP 1782639 B1 ¶[0006] and its publication date, but not the document body. The breadth of its antenna-configuration selection and its rate-change teaching should be read first-hand before filing anything.
3. US 6,611,231 / 7,062,296 / 7,426,392 / 7,729,728 filing, publication and issue dates and disclosures. Only the "search receiver logic" characterization (from the Fed. Cir. opinion) is verified; date verification is a prerequisite to any 102(e) usage.
4. The disclosures of the cited numbers I listed in §2.2 (Bantz '035, Chuang '890, Acampora '066, Akaiwa '484, Takeuchi '711, Rappaport '599, Aiello '153, Farzaneh '528, etc.). Only the numbers and dates as printed on the '497 are verified; their content is not.
5. Provisional support in 60/602,711 and 60/603,157 for the "selectable element antenna configurations" limitation — needed to assess the § 103(c)/102(e) self-collision line in §6.2 item 4.
6. Whether a terminal disclaimer was filed in the '713 (relevant only to the ODP theory, which I do not rely on).
7. No IPR/PGR/CBM against 7,877,113 was surfaced; that is a negative search result, not a verified absence, and I did not run a dedicated PTAB docket query.

Cross-reference check against the earlier sections of this analysis: nothing in this § 103 analysis contradicts the previously generated bibliographic, claim-construction, or litigation sections. One item adds to them: the earlier summary correctly noted that the granted claims are narrower than the specification's table-based disclosure; the analysis here sharpens that observation into the dispositive § 103 point — the narrowing is achieved almost entirely by relabeling rankable physical configurations and rates as "logical," which is the weakest possible basis for nonobviousness.