US 6906741

I'll search for this specific patent number, including any litigation or CAFC activity.

US Patent 6,906,741 — Analyst Summary

Search scope note: I searched for the exact number 6906741 across patent databases and litigation/CourtListener/CAFC materials. I found no litigation, PTAB proceeding, or CAFC 2026 docket naming U.S. Patent No. 6,906,741 as an asserted patent. The only appearances of "6906741" in litigation-adjacent documents I retrieved were incidental prior-art citation lists (e.g., a search-query log page in the Instacart v. Consumeron IPR2023-00865 exhibit set, and citation tables in later Qualcomm/goTenna patents). I could not verify status through the live USPTO PatentCenter interface directly, so the litigation-negative finding carries some residual uncertainty — but no affirmative evidence of any 2026 CAFC activity exists in the results.

Bibliographic data (from the patent record)

Assignment chain: Palm, Inc. → JPMorgan Chase (security interest, 2008; released 2010) → Hewlett-Packard Development Co. (2010) → Palm, Inc. (2013) → HP (2013) → Qualcomm Incorporated (effective Jan. 23, 2014).

Note the discrepancy worth flagging: third-party mirrors (uspto.report) list the grant as "assigned to Palm, Inc.," while Google Patents lists current assignee as Qualcomm. Both are consistent with the recorded reassignment history — Palm at issue, Qualcomm today.

Abstract (verbatim)

"A method of videoconferencing is disclosed. The method of videoconferencing includes initiating, with a first handheld computer, a conferencing call with a second handheld computer. The method also includes communicating, by the first handheld computer to the second handheld computer, a combination of at least two of video data, audio data, text data, and application data. Further, the method includes accessing selectively and substantially simultaneously, by the second handheld computer a combination of at least two of video data, audio data, text data, and application data."

Plain-language overview of each independent claim

Claim 1 — Method of accessing data (video + simultaneous text)

• Position a camera that is integrated into the handheld computer so it focuses on a videoconference participant.
• Establish a videoconference using the handheld computer.
• Display a video feed on the handheld (the feed is at least part of the videoconference feed).
• Simultaneously display a text message on the handheld, where that text message is received at the same time as the video feed.
• Gist: simultaneous on-screen video and text during a handheld videoconference, with the camera aimed at a participant.

Claim 2 — Method of videoconferencing (two handhelds, multi-media)

• Position a camera integrated with a first handheld in the direction of a first videoconference participant.
• Initiate, with the first handheld, a conferencing call to a second handheld.
• Communicate from the first to the second handheld a combination of at least two of: video data, text data, and application data. (Note: audio is not recited in this claim's data list, unlike the abstract/specification framing.)
• The second handheld selectively and substantially simultaneously accesses that same combination of at least two data types from the first handheld.
• Gist: handheld-to-handheld conferencing transporting mixed media (two or more of video/text/application data) that can be viewed together.

Claim 9 — Handheld computer apparatus

• Comprises: a housing; a processor; a camera integrated with the housing and coupled to the processor; memory coupled to the processor; a display coupled to the processor.
• A conferencing program stored in memory with functionality to selectively and simultaneously access at least two data types — video data, text data, and application data — during a conference, from other participants in the conference.
• A synchronization cradle removably coupled to the handheld, which (a) enables access to a conferencing server through the cradle, and (b) holds the integrated camera at a substantially fixed orientation.
• Gist: the apparatus counterpart, adding the cradle limitation — the cradle is not just a data path but a physical mount that stabilizes the camera for conferencing.

Claim 15 — Method of accessing data (via cradle; video + audio + application data)

• Mount the handheld (with integrated camera) in a synchronization cradle.
• Establish a videoconference using the handheld via the cradle.
• Provide a video feed on the handheld (at least part of the videoconference feed).
• Provide an audio feed on the handheld (at least part of the videoconference feed).
• Simultaneously display application data on the handheld, also at least part of the videoconference feed.
• Gist: cradled operation delivering three media streams — video, audio, and application (document/slide/scribble) data — at once.

Claim 18 — Method of accessing data (switching between data types)

• Place the handheld in a synchronization cradle; position the integrated camera toward a videoconference participant.
• Establish a conference call using the handheld via the cradle.
• Output a first data type (one of video, text, application data).
• Output a second, different data type simultaneously with the first (again one of video, text, application data).
• Switch selectively between data types being output while maintaining the conference call — i.e., the call persists across media toggling.
• Gist: simultaneous dual-media output plus the ability to toggle between media without dropping the conference.

Dependent-claim highlights (for completeness)

• Cl. 3: switching by the second handheld among combinations of video/text/application data.
• Cl. 4: video data includes "MPEG3 (MP3)" data (as literally recited — note this conflates MPEG-3 audio with MP3 in the spec text).
• Cls. 5–6: application data = word processing data; presentation application data.
• Cl. 7: conferencing call with a conferencing device (not limited to handhelds).
• Cl. 11: on-screen user interface used to switch data types.
• Cls. 12–14: wireless link to the conferencing server, specifically IEEE 802.11 or Bluetooth.
• Cls. 16–17: selectively disable video feed; selectively disable audio feed.
• Cl. 19: a third, different data type output simultaneously (drawn from video/audio/text/application).
• Cl. 20: terminate output of one data type without ending the call.

Key framing / caveats

1. Claim/specification mismatch: The abstract and specification discuss "video data, audio data, text data, and application data," but independent claims 2, 9, and 18 omit audio from their recited data-type sets (audio appears in claim 15 and dependent claims 19 and elsewhere). Claim scope is narrower than the summary language.
2. Cradle-as-camera mount is a notable limitation in claims 9, 15, and 18 — the synchronization cradle must both provide server access and hold the integrated camera fixed.
3. Cited prior art of record includes US 5,208,745 (EPRI; multimedia interface), GB 2,313,258 (Motorola; multimedia conferencing/cell handover), US 5,900,875 (3Com), US 6,646,672 (Feierbach, "Pocket video conference computer"), US 6,633,314 (Tuli), and US 6,333,163 / 6,435,594 (Accenture), plus a Raychaudhuri et al. WATMnet paper (1998).
4. Related family member: US 7,096,037 ("Videoconferencing bandwidth management for a handheld computer system and method"), same inventors/same-day filing (application 10/159,398) — a sibling patent, not this one.
5. No CAFC 2026 activity located. The patent expired in 2023 and I found no assertion, IPR, or appeal involving it. Any claim of 2026 appellate activity for this number would be unsupported by what I could retrieve.

I'll search for litigation involving US Patent 6906741 across patent litigation databases.

Let me search more targeted litigation databases for this specific patent.

Let me check a few more specialized litigation sources.

Litigation Search: US Patent 6,906,741

Bottom line: I found no litigation specifically asserting or challenging US Patent 6,906,741.

I searched litigation-oriented sources (including Unified Patents' portal content, CourtListener, Justia, Docket Alarm, and general web results surfacing PACER/CAFC documents) directed at the exact number 6906741. The results did not produce any case — district court, ITC, PTAB, or Federal Circuit — in which this patent was the patent-in-suit.

What I checked and what the results actually showed

• Exact-number searches ("6906741," "6,906,741"). These returned no infringement actions. The only "6906741" hit of note was inside an unrelated PTAB exhibit (a prosecution-history document in Maplebear Inc. d/b/a Instacart v. Consumeron, LLC, IPR2023-00865), where "6906741" appears merely as a prior-art search string — not as an asserted patent in that proceeding.

• Similar-number "674" patents — do NOT confuse these with 6,906,741. My searches surfaced numerous different patents whose numbers end in "674," none of which is US 6,906,741:

  • Loral Fairchild Corp. v. Sony/NEC/Toshiba — U.S. Pat. No. ? ('674, a CCD fabrication patent), E.D.N.Y.
  • ISS/Thomson ITC & CAFC appeals — U.S. Pat. No. 6,8xx,xxx ('674, LCD spacers)
  • Smarte Carte, Inc. v. IVS — U.S. Pat. No. 6,xxx,674 ('674 shopping-cart patent), D.N.J. No. 1:19-cv-08681
  • Qualcomm Inc. v. [Apple Inc.](/litigations/by-plaintiff/Apple%20Inc.) — U.S. Pat. No. 8,063,674 (Fed. Cir. Nos. 2020-1558/-1559, IPR2018-01315/-01316)
  • NorthPole LLC v. Lifetime Products (U.S. Pat. No. 6,112,674); Duzy IOD v. Bytedance (U.S. Pat. No. 12,472,674)
  • Daiichi v. Apotex ('741 patent — a chemical patent, not 6,906,741)

  Per your strict rule, I am treating all of these literally and distinct from US 6,906,741.

Context on ownership (relevant to potential future assertions)

Per the patent's public prosecution/assignment record, US 6,906,741 passed through several hands:

• Inventors: Francis J. Canova, Jr.; Albert H. Ting
• Original assignee: Palm, Inc.
• Then Hewlett-Packard Development Co. → back to Palm, Inc. → and ultimately Qualcomm Incorporated (assignment recorded 2014-01-28)
• Legal status: Expired – Lifetime, nominal expiration 2023-04-09

I did observe that Qualcomm (as owner of the acquired Palm patent portfolio) asserted several Palm-derived patents against Apple in late 2017 (San Diego district court filings and an ITC action involving 16 patents). However, I could not confirm from the search results that US 6,906,741 was among the patents asserted in those 2017 Qualcomm v. Apple actions — so I will not represent that it was.

Confidence and caveats

• I have high confidence that no litigation naming US 6,906,741 appeared in the sources reached by my searches.
• I have lower confidence that this is exhaustive. Coverage limits to be aware of: (a) I could not query PACER directly or pull a full PACER docket report for this patent; (b) Unified Patents' litigation portal and RPX were not directly retrievable in my results; (c) district-court complaints that are sealed or very recent may not surface in general web results; (d) because the patent expired in 2023, any assertion would necessarily pre-date that.
• The patent-owner chain also suggests any litigation would most plausibly have been brought by Qualcomm (or HP/Palm) — the natural candidates to search further.

Recommendation for definitive verification

To confirm a negative with higher confidence, check directly:

1. Unified Patents Litigation Portal — https://portal.unifiedpatents.com/litigation/caselist (search "6906741")
2. USPTO Patent Center / Assignment and PTAB (for any IPR/PGR/CBM naming the patent): https://patents.google.com/patent/US6906741/en (linked "Discuss" and USPTO tabs)
3. PACER case search (Patent/Trademark → patent number field) and CourtListener RECAP docket search
4. RPX Insight and Docket Alarm patent→litigation lookup (a subscription lookup by exact patent number is the most reliable)

If you'd like, I can run additional targeted searches against any of these (e.g., a plain-text query tied to the inventors' names + "infringement," or the patent title), but I want to flag clearly that as of my searches I could not identify a single litigation involving US 6,906,741, and I will not fabricate case numbers, parties, or outcomes to fill that gap.

I'll start by verifying the structured data against public sources, since the prompt directs me to flag any proceedings the ODP ingest may have missed.

No proceeding surfaced in those first queries. Let me run targeted searches against PTAB docket aggregators and petitioner names to be sure I'm not missing a filing.

Let me do a final confirmation sweep for any assertion campaign or defensive-aggregator activity that might have generated a filing.

Proceedings overview

Zero AIA trial proceedings are on file against US 6,906,741 — the structured USPTO Open Data Portal block states "no AIA trial proceedings for this patent as of the most recent ingest," and three independent web searches (patent-number + IPR/PGR/CBM queries, petitioner-side queries, and docket-aggregator queries) surfaced no petition, institution decision, FWD, or appeal naming this patent. So the breakdown is: 0 active / 0 claims invalidated / 0 claims sustained / 0 settled / 0 institution denied. The defensive posture this gives a defendant is not about PTAB hardening or PTAB kill-shots at all — it is the expiration clock: the '741 patent's adjusted expiration is 2023-04-09, and it is now marked Expired – Lifetime. Any live demand you are facing is, on its face, aimed at an expired patent.

No proceeding to report

Nothing to enumerate. There is no IPR20xx-#####, no PGR20xx-#####, and no CBM20xx-##### petition for this patent in the record I can access. Because no trial was instituted, there are no judge panels, no institution decisions, no Final Written Decisions, no settlement/termination papers, and no Federal Circuit appeal to populate the per-proceeding template with. I am explicitly declining to invent proceeding numbers or substantive dispositions; there are none to cite.

Search-noise flags (things that look like PTAB hits but are not)

• Docket Alarm hit on IPR2023-00865 (Maplebear Inc. d/b/a Instacart v. Consumeron, LLC). The string "6906741" appears in a prior-art search-query log (Exhibit 1039, a prosecution-history/search-strategy exhibit) attached to that petition. The proceeding is about a different patent owned by Consumeron; US 6,906,741 is merely invoked as a search term in an examiner/petitioner query log. This is not a proceeding against the '741 patent.
• Patents citing the '741 patent. US 6,906,741 appears as a cited reference in later patents (e.g., GoTenna's US 10,944,669 and family). A citation is not a validity challenge.
• "Canova" as prior art. A Supreme Court petition (No. 26-236, docketed 2026) reproduces an Examiner's obviousness rejection relying on "Canova in view of Baba/Vallone" in an unrelated web-conferencing application. "Canova" there is prior art cited during prosecution of some other patent — not a PTAB trial on the '741 patent. I could not confirm from the search snippet which Canova document this is, so treat it as unverified and not as patent-owner activity.
• Family note: the companion case, US 7,096,037 ("Videoconferencing bandwidth management for a handheld computer system and method"), shares the same inventors, assignee chain, and priority (provisional 60/352,785). My searches did not surface any PTAB proceeding on the '037 patent either, but confirm that separately if it is in the demand letter.

Strategic summary

Claim status: everything is UNTESTED, because nothing was ever challenged. No claim of US 6,906,741 — independent claims 1, 2, 9, 15, and 18, or their dependents (3–8, 10–14, 16–17, 19–20) — has been canceled, narrowed, or confirmed by the PTAB. The patent issued 2005-06-14 with 20 claims and stands as issued. That is not a "hardened" signal in the PTAB sense; it reflects that nobody bothered to mount an AIA challenge, which is consistent with a patent whose commercial assertion window had largely closed. The controlling fact for a defendant is expiration: adjusted expiration 2023-04-09. With no AIA trial and no listed reissue/reexam in the record, the claims cannot be asserted for any post-expiration conduct, and the only residual exposure is pre-expiration damages (plus the 6-year § 286 lookback, which now reaches back only to roughly 2020-09-27).

Estoppel landscape: no § 315(e)(2) estoppel exists. Because no IPR/PGR/CBM was ever instituted, no petitioner and no privy is barred from raising any § 102/§ 103 ground. There is also no IPR-imposed estoppel, no FWD, and therefore no adverse judgment or motion-to-amend history to work around. Practically, that means a defendant has the full universe of prior-art grounds available in district court (subject to the ordinary § 282 burden and any case-specific IPR estoppel from other patents). Also note the reverse: the patent owner has never had to defend these claims, so there is no PTAB record of the Board construing terms like "positioning a camera integrated into a handheld computer," "substantially simultaneously," or "synchronization cradle."

Pattern signals: none. There is no serial petitioner (no Unified Patents, no RPX, no single challenger filing multiple IPRs), no patent-owner appeal campaign at the Federal Circuit, and no defensive-aggregator chain visible. The ownership trail is a corporate one, not an assertion-driven one: Palm, Inc. → Hewlett-Packard Development Company → current assignee Qualcomm Incorporated (assignment recorded 2014-01-23/28). The absence of any IPR over a ~20-year term is itself a signal: this is a portfolio/legacy asset whose assertion history (if any) I could not confirm from the available sources, not a patent that litigants found worth attacking at the Board.

Recommended next steps

• Lead with expiration, not validity. The strongest available defense is temporal: adjusted expiration 2023-04-09 (per the Google Patents legal-status field, https://patents.google.com/patent/US6906741/en). Confirm the expiration and any term adjustments against the USPTO Patent Center record for App. No. 10/158,704 before relying on it in a filing or a meet-and-confer.
• No PTAB materials to link. There is no FWD to quote and no disposition to point to. For independent verification of the null result, run the patent number through PTAB's own systems — the PTAB E2E / Patent Trial and Appeal Board Center (https://ptacts.uspto.gov/ and https://ptabdata.uspto.gov/) — and the assignment record at https://assignment.uspto.gov/. My conclusion is based on the ODP structured block plus web search; the E2E docket is the authoritative cross-check and I was not able to query it directly in this session.
• If a demand letter cites claims 1–8 or 15–20, the response is not "IPR killed it" — it is "the patent is expired and there is no PTAB record because no one ever bothered." Ask the sender to identify the accused acts and their pre-April-2023 dates, and to produce the term/PTA computation. If the theory is built on post-2023 conduct, § 271(a) infringement of an expired patent is not actionable.
• Confirm the companion patent. If the demand also cites US 7,096,037 (same inventors, same priority), independently check that patent for PTAB activity and its own expiration — do not assume the '741 result carries over.
• If you want an insurance-layer invalidity position anyway (e.g., to avoid a damages fight over the 2020–2023 window): because no estoppel applies, you can raise any § 102/§ 103 art you can find, and you may still consider an ex parte reexamination or a district-court invalidity theory — but be aware the IPR window for this patent has closed along with the patent, so PTAB is not an available tool here.

Bottom line for a defendant today: there are no AIA trial proceedings on US 6,906,741 — the patent was never challenged at the PTAB and it expired 2023-04-09. A demand letter citing any of claims 1–20 is asserting an expired patent; your first move is the expiration date, not a prior-art defense.

I'll start by gathering what the authoritative record already gives me, then try to recover the correspondent-of-record details that Google Patents doesn't surface.

Let me try to recover the recorded correspondent details and check for any assertion history.

No litigation hits so far. Let me probe the USPTO legacy assignment PDFs and third-party mirrors for the record-level details (reel/frame, correspondent).

Research limitations (read first)

I was able to reconstruct the chain and reel/frame numbers from the USPTO-sourced legal-events table mirrored on Google Patents, and I confirmed the corporate narrative against contemporaneous press/SEC-adjacent reporting. However, I could not retrieve the correspondent-of-record field for any individual recording — USPTO Assignment Center (assignmentcenter.uspto.gov) and the legacy-assignment PDF server did not return usable results for these reel/frame numbers in this session (queries for 025204/0809, 030341/0459, 032177/0210, 020317/0256, 024630/0474 returned no matching records). Per the operating rules, I am not going to guess attorney names or firm addresses. Signal 3 below is therefore scored on the evidence that is available, and I flag it as unverified rather than filling it in.

Verification entry point: https://assignment.uspto.gov/patent/index.html#/patent/search/result?q=[6906741](/patent/6906741)

Inventors

Pattern notes:

• The assignment was executed two days before filing (2002-05-28 → filed 2002-05-30), the standard employment-obligation "assign-at-filing" pattern. There is no separate later-corrected inventor assignment, which is consistent with an unproblematic chain of title from the inventors.
• Both inventors are also named on the sibling application Ser. No. 10/159,398 ("Videoconferencing bandwidth management for a handheld computer system and method," issued as US 7,096,037), filed the same day by the same assignee — a two-patent, two-inventor family. That small, tightly-scoped family is a normal in-house R&D unit, not a hand-assembled portfolio.
• I cannot confirm or refute whether either inventor left Palm within 12 months of filing — that data is not in the patent record or the sources I could reach. No finding either way.

Original assignee

Palm, Inc. (Santa Clara, California) — named as assignee on the face of the issued patent and on the original recorded assignment, reel 012949/0869.

• Primary line of business: handheld computers / PDAs running the Palm OS, later Palm-branded smartphones (Treo family). Its 2002-era hardware — Palm OS handhelds, the synchronization cradle, the Dragonball and ARM/Linux platform references in the spec — is literally the platform the specification describes.
• Did they ship a product embodying the claims? Partially supportable, not confirmable in full. Palm shipped handhelds with an integrated camera in the relevant window (e.g. Palm Zire 71, 2003), and the spec's own hardware list (integrated camera, cradle, 802.11/Bluetooth, Palm OS) tracks Palm's product line. But claims 1, 2, 15 and 18 require handheld-to-handheld videoconferencing with simultaneous multi-media streams, and I have no evidence Palm shipped a commercial product practicing that in 2002–2005. I'd call the full-claim commercial embodiment unconfirmed.
• Current status: Acquired. HP bought Palm for ~$1.2B, deal closing around 2010-07-01; HP wrote the acquisition down, sold webOS to LG (2013), and the Palm brand later went to TCL. The Palm, Inc. entity itself survived as an IP-holding conduit through 2013 and was one of the named assignors on the 2014 Qualcomm sale. So: operating business wound down / absorbed; corporate entity terminated as an IP vehicle via reel 032177/0210.

Assignment timeline

Reel/frame values below are as surfaced in the USPTO legal-events record. Correspondent fields were not recoverable in this session — please pull them from Assignment Center directly if they are material to your chain analysis.

• 2002-05-28 (executed) / recorded 2002-05-30 — Reel 012949/0869

  • Conveyance: Assignment
  • Assignor: Francis J. Canova, Jr.; Albert H. Ting
  • Assignee: Palm, Inc. (California)
  • Correspondent: not recovered (see limitation note)
  • Context: Initial inventor-to-employer assignment executed two days pre-filing; obligation-based, not a negotiated transfer.

• 2007-10-24 (executed) / recorded 2008-01-04 — Reel 020317/0256

  • Conveyance: Security Agreement
  • Assignor: Palm, Inc.
  • Assignee: JPMorgan Chase Bank, N.A. (New York), as administrative agent
  • Correspondent: not recovered
  • Context: Securitization — Palm pledged its patent portfolio as loan collateral; no transfer of title.

• 2010-07-01 (executed) / recorded 2010-07-06 — Reel 024630/0474

  • Conveyance: Release by Secured Party
  • Assignor: JPMorgan Chase Bank, N.A., as administrative agent
  • Assignee/release to: Palm, Inc. (California)
  • Correspondent: not recovered
  • Context: Release of the 2007 security interest, clearing title ahead of the HP acquisition.

• 2010-10-27 (executed) / recorded 2010-10-28 — Reel 025204/0809

  • Conveyance: Assignment of Assignor's Interest
  • Assignor: Palm, Inc.
  • Assignee: Hewlett-Packard Development Company, L.P. (Texas)
  • Correspondent: not recovered
  • Context: HP's ~$1.2B acquisition of Palm — the '741 patent moves to an operating acquirer, not to an NPE.

• 2013-04-30 (executed) / recorded 2013-05-03 — Reel 030341/0459

  • Conveyance: Assignment of Assignor's Interest
  • Assignor: Hewlett-Packard Development Company, L.P.
  • Assignee: Palm, Inc. (California)
  • Correspondent: not recovered
  • Context: Internal reorganization — reconstituting Palm, Inc. as the IP-holding vehicle inside HP.

• 2013-12-18 (executed) / recorded 2013-12-18 — Reels 031837/0239, 031837/0544, 031837/0659

  • Conveyance: Assignment of Assignor's Interest (three recordings, same day, same parties)
  • Assignor/Assignee pairs: Palm, Inc. → Hewlett-Packard Development Company, L.P. (0239); Hewlett-Packard Development Company, L.P. → Palm, Inc. (0544); Palm, Inc. → Hewlett-Packard Development Company, L.P. (0659)
  • Correspondent: not recovered — note that these three same-day recordings share the reel prefix 031837, i.e. they were filed as one batch by one filer. If the correspondent field is the same across all three, that is a same-filer datapoint (internal true-up), not an NPE tell — the parties are the same two affiliated operating entities.
  • Context: Internal reorganization / title true-up of the Palm↔HP asset shuffle, executed ~1 month before the Qualcomm sale.

• 2014-01-23 (executed) / recorded 2014-01-28 — Reel 032177/0210

  • Conveyance: Assignment of Assignors' Interest
  • Assignors: Hewlett-Packard Company; Hewlett-Packard Development Company, L.P.; Palm, Inc.
  • Assignee: QUALCOMM Incorporated (California)
  • Correspondent: not recovered
  • Context: Strategic portfolio sale — ~1,400 US patents plus ~1,000 foreign filings covering Palm, iPaq and Bitfone technology, announced 2014-01-23. Qualcomm publicly characterized it as portfolio-strengthening for its licensing business and stated it was "not and [had] no plans to become a 'non-practicing entity.'" HP retained license-back rights per press coverage.

• 2023-04-09 — Adjusted expiration (Google Patents legal status; patent marked expired/lifetime). No assignment activity after reel 032177/0210.

Timeline diagram

timeline
    title Ownership of US 6906741
    2002 : Inventors assign to Palm Inc
         : Application filed 30 May
    2007 : Palm pledges portfolio to JPMorgan Chase
    2010 : JPMorgan releases security interest
         : HP buys Palm and takes title
    2013 : Palm and HP internal title shuffles
    2014 : HP and Palm sell portfolio to Qualcomm
    2023 : Patent expires

NPE / troll-pattern signals

1. Shell-entity transfer — not present. Every assignee in the chain is a named operating company (Palm, Inc.; Hewlett-Packard Development Company, L.P.; QUALCOMM Incorporated) or a bank acting as secured party (JPMorgan Chase Bank, N.A.). No "IP / Holdings / Licensing / Ventures" suffix appears anywhere in reels 012949/0869, 020317/0256, 024630/0474, 025204/0809, 030341/0459, 031837/*, or 032177/0210. No registered-agent-service address or single-member LLC appears. Note the trap here: "Palm, Inc." as assignee on reel 030341/0459 (2013) looks like a brand revival but is in fact a wholly-owned HP-directed vehicle used to true up title — its assignor on that instrument is HP Development Company, L.P.

2. Known asserter in the chain — not present. No assignee matches the supplied list (Acacia, Marathon, IV, IPNav, Wi-LAN, Mosaid/Conversant, Vringo, Pendrell, Innovatio, MPHJ, Lumen View, Round Rock, Document Generation Corp, Spangenberg entities). The terminal assignee, Qualcomm, is a semiconductor and licensing operating company (Snapdragon, QTL), and it publicly disclaimed NPE status in connection with this very purchase. I found no Unified Patents or RPX listing tying US 6906741 to a high-frequency plaintiff.

3. Repeat correspondent across the chain — unclear / unverified. I could not recover the correspondent field for any recording (see the research-limitations note). What I can say: reel prefix 031837 covers three same-day recordings (0239, 0544, 0659), which by definition share one filer; the parties on all three are the same two affiliated operating entities, so even if the correspondent recurs it is an internal-household pattern. There is no evidence of a recurring outside NPE-side attorney in this chain, and I will not assert one exists.

4. Cascading transfers — partial, and benign on the evidence. There is a genuine burst: three assignments recorded on a single day, 2013-12-18, then the Qualcomm sale ~5 weeks later (032177/0210, executed 2014-01-23). That is technically multiple transfers in under 24 months. But unlike an NPE cascade, the 2013 entries do not chain through unrelated LLCs — they shuttle between Palm, Inc. and Hewlett-Packard Development Company, L.P., two entities under common control, and the recorded consideration/direction is consistent with a title clean-up before a sale. Scoring this "present" would be inferring from velocity alone.

5. Pre-litigation transfer — not present. I found no infringement suit naming US 6906741. The Qualcomm assignment (executed 2014-01-23) is therefore not dateable against any first-filed case. Absent a suit, there is no venue/standing-driven transfer to point at.

6. Bankruptcy fire-sale — not present. HP was a solvent public company when it sold the Palm iPaq Bitfone portfolio to Qualcomm in January 2014. HP did take large write-downs (notably $8.8B on Autonomy in Nov 2012) and wrote down the Palm acquisition, but there was no Chapter 7 or Chapter 11 proceeding and no court-supervised 363 sale. This is a strategic divestiture, not a fire-sale.

7. Privateering — not present. Privateering requires an operating company transferring to an NPE that asserts on its behalf. Here the buyer (Qualcomm) is itself a practicing manufacturer and an existing large licensor running its own QTL program; the seller (HP) reportedly took a license-back, which is a partnering structure typical of a defensive/licensing consolidation, not an offload to a hired gun. No EFF / Patent Progress / SEC filing coverage surfaces a privateering arrangement.

8. Defensive aggregator — not present. The chain does not terminate at RPX, AST, LOT Network, Unified Patents or OIN. It terminates at QUALCOMM Incorporated per reel 032177/0210 (executed 2014-01-23, recorded 2014-01-28).

Verdict

Insufficient data — with an important qualifier: this is not a "we couldn't find the records" case. The chain is fully documented (reels 012949/0869, 020317/0256, 024630/0474, 025204/0809, 030341/0459, 031837/0239, 031837/0544, 031837/0659, 032177/0210), and zero of the eight NPE signals are supported. The reason I do not select "Operating-company assertion" is that the affirmative test for that label — current assignee shipping products embodying the claims and suing actual competitors — fails on the second prong: I found no suit naming US 6906741, and the patent expired 2023-04-09 (past-damages suits remain theoretically possible within the 35 U.S.C. § 286 lookback window, but none exist). The chain is an all-operating-company chain: inventors → Palm → (JPMorgan collateral pledge, later released) → HP → internal Palm/HP title shuffles → Qualcomm.

Practical read for your tracking: treat US 6906741 as a Nortel/Kodak-style strategic portfolio divestiture that landed at a practicing licensor, not an NPE vehicle. The single most notable datapoint in the record is the three same-day recordings on 2013-12-18 under shared reel prefix 031837, executed five weeks before the Qualcomm sale — a title clean-up, not an assertion setup. If you want to close the one open gap, pull the correspondent of record for reels 031837/0239, /0544, /0659 and 032177/0210 directly from Assignment Center; if those four share a single filer (very likely, given the shared reel prefix), it will confirm a single in-house/outside deal team running a corporate divestiture rather than a repeat NPE filer.

I'll verify the patent record and research the cited prior-art references before building the analysis.

Let me verify the remaining cited references.

Prior-Art Analysis — U.S. Patent No. 6,906,741 B2

1. Record Verification (searched ID: 6906741 — literal, no substitution)

Sources: https://patents.google.com/patent/US6906741/en ; https://patents.justia.com/patent/6906741

I did not return results for any other number. All identifiers below are reproduced literally as they appear in the patent's own citation table (including US 6,646,672 B2, GB 2313258 A, EP 1093281 A2, etc.).

Analytical caveat up front: The 17 references below are the references listed on the face of US 6,906,741 ("Patent Citations"). Being cited does not mean a reference anticipates. Anticipation under 35 U.S.C. § 102 requires a single reference to disclose every element of a claim, arranged as claimed. As shown below, no single cited reference appears to anticipate any independent claim (1, 2, 9, 15, 18); the examiner evidently agreed and allowed the claims. What the citations do show is the state of the art against which the claims are measured, and the best § 102/§ 103 springboards. I flag where each reference is potentially relevant and to which claims.

2. The Claim Set That Must Be Met (roadmap)

Independent claims

• Claim 1 — Method: (a) positioning an integrated camera of a handheld computer at a participant; (b) establishing a videoconference using a handheld computer; (c) displaying a video feed (part of a videoconferencing feed); (d) displaying simultaneously a text message received simultaneously with the video feed.
• Claim 2 — Method: (a) positioning an integrated camera of a first handheld at a participant; (b) initiating a conferencing call with a second handheld computer; (c) communicating a combination of ≥2 of {video, text, application} data; (d) accessing selectively and substantially simultaneously that combination by the second handheld computer.
• Claim 9 — Apparatus: housing + processor + integrated camera + memory + display + conferencing program accessing selectively/simultaneously ≥2 data types {video, text, application} from other participants … plus a synchronization cradle removably coupled, enabling server access and holding the camera in a substantially fixed orientation.
• Claim 15 — Method: mounting handheld (with integrated camera) in a synchronization cradle; establishing a videoconference via the cradle; providing video feed + audio feed; displaying simultaneously application data.
• Claim 18 — Method: placing handheld in a synchronization cradle; positioning the integrated camera; establishing a conference call via the cradle; outputting a first data type; outputting a second, different data type simultaneously; switching selectively between output data types while maintaining the call.

Dependent claims add: MP3 video data (4), word-processing application data (5), presentation application data (6), conferring with a "conferencing device" (7), cradle/server + fixed camera orientation (8), switch UI (10–11), 802.11 link (13), Bluetooth link (14), selective disabling of video (16)/audio (17), third data type (19), terminating one data type without ending the call (20).

The novelty pressure points are: (i) handheld + integrated camera; (ii) simultaneous multi-media (video + text/application) within an interactive conference; (iii) the synchronization cradle used as the video-conference link/hold; and (iv) selective switching between data types while maintaining the call.

3. The 17 Cited References — Citation, Date, Description, § 102 Potential

3.1 — Most relevant

(1) US 6,646,672 B2 — "Pocket video conference computer"

• Inventor/Assignee: Wolfgang Feierbach. Priority: German Utility Model 200 21 842.5, filed 2000-12-21; granted 2003-11-11. (Cited by examiner.)
• Description: A pocketbook-sized palmtop computer with videoconferencing capability — hinge/folding design, a computer unit with full keyboard and monitor on one side and a mobile-telephone unit with numeric keyboard and monitor on the other, and a rotating digital video camera (≈200°) in the spine. The two monitors show the communicating parties; for 3+ party conferences a "traffic-light" talk-arbitration indicator is used; the unit runs multitasking word processing/graphics on the same monitors, and has large RAM for importing/editing documents (some imported encrypted).
• § 102 potential: This is the closest single-art reference and the strongest § 102( e) candidate (pre-2002 priority). It is arguably relevant to claim 2 (integrated camera positioned at a participant + conference call + simultaneous display of video and application data such as word processing) and to claim 1/claim 5/claim 6 (video feed + simultaneous text/word-processing presentation). However, it does not clearly disclose (a) a second handheld computer as the called party in the claimed relationship, (b) a synchronization cradle used as the conference link (claims 9, 15, 18), or (c) selective switching between output data types while maintaining the call in the claimed manner. Net: potentially anticipatory of parts of claim 2/5/6, not of the cradle-centered claims.
• Source: https://patentimages.storage.googleapis.com/1e/82/24/669b090398d203/US6646672.pdf ; https://uspto.report/patent/grant/[6646672](/patent/6646672)

(2) GB 2313258 A — "A multimedia conferencing system for use during cellular network handover and method of using same"

• Assignee: Motorola Ltd. Filed 1996-05-17; published 1997-11-19.
• Description: A multimedia conferencing terminal for a cellular multimedia network supporting multiple simultaneous media modes — voice, video, text, still images and other data — with a display showing voice, video, text and graphical information at the same time (FIG. 4), and mode-priority/handover management during a conference call.
• § 102 potential: Highly relevant to the "simultaneous multi-media during a conference" concept of claims 2, 15 and 18 and to the multi-window/simultaneous display idea. It does not disclose a handheld computer with an integrated camera positioned by the user, nor the synchronization cradle. Strong § 103 combination material, weak standalone § 102.
• Source: https://patents.google.com/patent/GB2313258A/en ; https://patentimages.storage.googleapis.com/96/8b/8c/b8bcd0be166446/GB2313258A.pdf

(3) US 2002/0163548 A1 — "System and apparatus for notetaking with digital video and ink"

• Assignee: Fuji Xerox Co., Ltd. Filed/priority 1999-03-24; published 2002-11-07. (Cited by examiner.)
• Description: A capture system correlating digital video with handwritten ink/text notes, so video and annotation are displayed and reviewed together.
• § 102 potential: Relevant to the simultaneous video + text/ink display of claim 1 and the video + application-data combination of claims 2/15, but it is a notetaking system, not an interactive handheld videoconference between handheld computers, and has no cradle/camera-orientation teaching. Not anticipatory as a whole.

(4) US 5,908,875 A — "Method and apparatus for interacting with a portable computer system"

• Assignee: 3Com Corporation. Filed 1997-01-29; granted 1999-05-04. (Cited by examiner.)
• Description: Interaction/synchronization of a portable computer (PalmPilot-class PDA) with a host, including docking/cradle synchronization of data.
• § 102 potential: Directly relevant to the synchronization-cradle element of claims 9, 15 and 18 and to claim 8's "coupling the handheld computer to a synchronization cradle." It does not disclose videoconferencing, cameras, or multi-media conference feeds, so it cannot anticipate any independent claim alone; it is the obvious-typing reference for the cradle limitation.

3.2 — Multi-media-to-mobile-device and handheld-Internet references

(5) US 6,345,279 B1 — "Methods and apparatus for adapting multimedia content for client devices"

• Assignee: International Business Machines Corp. Filed/priority 1999-04-23; granted 2002-02-05. (Cited by examiner.)
• Description: Server-side transcoding/adaptation of composite multimedia content (video, images, graphics, text, audio) to the capabilities of diverse client devices including PDAs and smart cellular phones; via "Infopyramid" resolution/modality selection; explicitly discusses video-conferencing systems that adjust bandwidth/codec.
• § 102 potential: Relevant background to delivering multiple media types to a handheld; it does not disclose an interactive handheld conference device, an integrated camera, or a cradle. Not anticipatory.

(6) US 6,633,314 B1 — "Portable high speed internet device integrating cellular telephone and palm top computer"

• Inventor: Raja Tuli. Filed/priority 2000-02-02; granted 2003-10-14. (Cited by examiner.)
• Description: A portable device integrating a cellular telephone and palmtop computer for high-speed internet access.
• § 102 potential: Relevant to the handheld + wireless telephony platform of claims 9/12–14, but silent on videoconferencing/multi-media conferencing and the cradle. Not anticipatory.

(7) US 6,633,761 B1 — "Enabling seamless user mobility in a short-range wireless networking environment"

• Assignee: Reefedge, Inc. Filed/priority 2000-08-11; granted 2003-10-14. (Cited by examiner.)
• Description: Seamless mobility/handoff in short-range wireless networks (e.g., IEEE 802.11 / Bluetooth environments).
• § 102 potential: Relevant specifically to the wireless-link limitations of claims 13 (IEEE 802.11) and 14 (Bluetooth) and to claim 12's wireless conferencing-server access. Silent on conferencing media types; not anticipatory except possibly as to the link-type recitations, and even then only as evidence of conventional wireless links.

3.3 — Messaging-/data-push-to-mobile-device references

(8) US 6,438,585 B2 — "System and method for redirecting message attachments between a host system and a mobile data communication device"

• Assignee: Research In Motion Ltd. Filed 1998-05-29; granted 2002-08-20.
• Description: Redirecting/pushing message attachments (data/documents) from a host to a mobile device.
• § 102 potential: Background for delivering application/document data to a handheld (cf. claim 5/6 application data), but no conferencing, no video/voice. Not anticipatory.

(9) US 6,389,457 B2 — "System and method for pushing information from a host system to a mobile data communication device"

• Assignee: Research In Motion Ltd. Filed 1998-05-29; granted 2002-05-14.
• Description: Information push to mobile devices.
• § 102 potential: Same as (8) — background only. Not anticipatory.

(10) US 6,401,085 B1 — "Mobile communication and computing system and method"

• Assignee: Accenture LLP. Filed/priority 1999-03-05; granted 2002-06-04.
• § 102 potential: Generic mobile communication/computing architecture; no videoconferencing or multi-media-conference teaching. Not anticipatory.

(11) US 6,438,594 B1 — "Delivering service to a client via a locally addressable interface"

• Assignee: Accenture LLP. Filed/priority 1999-08-31; granted 2002-08-20.
• § 102 potential: Network service-delivery architecture; no conference-media teaching. Not anticipatory.

(12) US 6,332,163 B1 — "Method for providing communication services over a computer network system"

• Assignee: Accenture LLP. Filed/priority 1999-09-01; granted 2001-12-18.
• § 102 potential: Network communication-services architecture; no handheld videoconferencing. Not anticipatory.

3.4 — Adjacent/background references

(13) US 5,908,760 A — "Image icon associated with caller ID"

• Assignee: Sony Corporation. Filed 1997-03-25; granted 1999-05-25.
• Description: Presenting an image/icon associated with a caller ID during a call.
• § 102 potential: Peripheral relevance to associating a video image with a call (theme of claim 1), but no conferencing, no handheld, no simultaneous text. Not anticipatory.

(14) US 6,429,812 B1 and (15) US 6,252,544 B1 — "Mobile communication device"

• Inventor: Steven M. Hoffberg. Both priority 1998-01-27; granted 2002-08-06 (6,429,812) and 2001-06-26 (6,252,544). Same family.
• Description: Broad mobile communication/location-aware device claims.
• § 102 potential: Broad genus; the disclosures do not describe handheld multi-media conferencing, integrated cameras positioned at participants, or cradles. Not anticipatory; at most generic background.

(16) EP 1 093 281 A2 — "Call redirection through portable device"

• Assignee: Nortel Networks Ltd. Filed/priority 1999-10-15; published 2001-04-18. (Cited by examiner.)
• Description: Redirecting calls through/among portable devices.
• § 102 potential: Telephony call-management background; no video/application-data conferencing. Not anticipatory.

(17) US 5,208,745 A — "Multimedia interface and method for computer system"

• Assignee: Electric Power Research Institute. Publication 1993-05-04 (Google lists prior-art date 1988-07-25; the EP counterpart EP 0 460 867 A3 shows a 1990-06-04 US 532596 priority — the two dates differ, so treat the face-of-patent date as controlling).
• Description: A multimedia interface combining text, graphics, video, sound, speech and print, running in parallel with an application (expert system), generating video/audio commands simultaneously with text display; includes a portable, handheld "satellite station" receiving messages and video images from the host.
• § 102 potential: Its simultaneous text + video + audio display, and a handheld satellite station that receives messages and video images, are the themes of claim 1 (video + simultaneous text) and somewhat of claims 2/15. But it is a maintenance-assistance expert system, not an interactive videoconference between handheld computers, and has no cradle/camera. Not anticipatory.
• Source: https://www.freepatentsonline.com/[5208745](/patent/5208745).html ; https://uspto.report/patent/grant/5208745 ; https://patentimages.storage.googleapis.com/0c/1a/3c/cd4e610522005d/EP0460867A3.pdf

4. Non-Patent Citations Listed on the Patent

1. Form PCT/ISA/220 (Jul. 1998) for PCT International Application No. PCT/US 02/37216, dated Mar. 11, 2003 — a procedural PCT form, not substantive prior art.
2. Raychaudhuri, D. et al., "Mobile Multimedia Applications in the WATMnet Broadband Wireless System: Software Architecture and Media Processing Considerations," Signals, Systems & Computers, 1998. Conference Record of the 32nd Asilomar Conference on, Pacific Grove, CA, pp. 73–77 (Nov. 1–4, 1998), XP010324332, ISBN 0-7803-5148-7.
   • § 102 potential: Relevant to mobile multimedia (voice/video) over a wireless ATM system — i.e., to the wireless-multimedia-conferencing context of claims 12–14 and to multi-media transport generally. It does not disclose a handheld PDA videoconferencing UI, integrated camera positioning, or a synchronization cradle; not anticipatory.

5. Bottom Line — Most Relevant Prior Art

Ranked most-to-least relevant to the claims:

1. US 6,646,672 B2 (Feierbach, "Pocket video conference computer") — the single most relevant reference; arguably bears on claims 2, 5, 6 (and facets of 1). Best § 102( e) candidate, but fails to reach the synchronization-cradle and selective-switching limitations.
2. GB 2313258 A (Motorola) — simultaneous multi-media (voice/video/text/graphics) in a conference, per claims 2, 15, 18; no integrated-camera handheld or cradle.
3. US 5,908,875 A (3Com) — the synchronization cradle of claims 8, 9, 15, 18; no conferencing.
4. US 2002/0163548 A1 (Fuji Xerox) — simultaneous video + ink/text, relevant to claims 1, 2, 15.
5. US 5,208,745 A (EPRI) — simultaneous text + video + audio, handheld satellite station, relevant to claim 1.
6. US 6,633,761 B1 (Reefedge) — IEEE 802.11 / Bluetooth links of claims 13, 14.
7. The RIM, Accenture, Nortel, Sony, Hoffberg, Tuli and IBM references are background/platform art (mobile messaging, network service delivery, multimedia adaptation) that do not, individually or as cited, reach the conferencing-and-cradle combination claimed.

Conclusion on anticipation: On the record as cited, none of the 17 references anticipates any independent claim (1, 2, 9, 15, 18) in its entirety. The strongest single-reference § 102 argument concerns US 6,646,672 B2 against claim 2 (and dependents 5–6), but that reference lacks a second handheld computer called in the claimed relationship and lacks the cradle/multi-output-switching features that the examiner relied upon for allowance. The remaining references are best characterized as § 103 combination material (e.g., Feierbach or GB 2313258 for multi-media conferencing + 3Com for the synchronization cradle + Reefedge for the 802.11/Bluetooth link). Any invalidity theory would need to combine references — which is consistent with the examiner having allowed claims 1, 2, 9, 15 and 18 over this art.

Related family note (for completeness, not a § 102 reference to '741): the co-filed application US 10/159,398, published as US 2003/0144004 A1 and issued as US 7,096,037 B2 ("Videoconferencing bandwidth management for a handheld computer system and method"), shares inventors/assignee with the '741 patent.

If you want, I can convert Section 3 into a formal claim-by-claim anticipation chart (elements × references) or run the same analysis against the Citing references (e.g., US 2003/0217367 A1, US 7,492,386 B2) as forward-looking art.

I'll ground a few of the key prior-art references before building the combination analysis.

Good grounding on the primary references. Two more to confirm the handheld-docking and wireless aspects.

Obviousness Analysis — U.S. Patent 6,906,741 B2 under 35 U.S.C. § 103

Patent: US 6,906,741 B2 — "System for and method of conferencing with a handheld computer using multiple media types"
Inventors: Canova (Jr.), Ting | Original assignee: Palm, Inc. | Current assignee of record: Qualcomm Inc.
Priority: 2002‑01‑29 (prov. 60/352,785) | Filed: 2002‑05‑30 | Granted: 2005‑06‑14 | Status: Expired – Lifetime (adjusted expiration 2023‑04‑09)
Source of record: https://patents.google.com/patent/US6906741/en

1. Framework and caveats

This is a Graham/KSR analysis: (i) scope and content of the prior art, (ii) differences between the prior art and the claims, (iii) level of ordinary skill, and (iv) secondary considerations. A claim is obvious where the differences would have been apparent to a person having ordinary skill in the art ("POSITA"), including under the KSR rationales: combining known elements according to known methods to yield predictable results; substituting one known element for another; using a known technique to improve a similar device in the same way; and applying a known technique to a known device ready for improvement (market forces / design incentives). KSR Int'l Co. v. Teleflex Inc., 550 U.S. 398 (2007); MPEP §§ 2141, 2143.

Explicit caveats for this analysis:

1. I have the full text, claims, and the "Citations" list of US 6,906,741 from the Google Patents page, but I have reviewed only excerpts of the cited references (the excerpts retrieved in search are quoted below). Mapping is therefore at the level of disclosure kind, not verbatim line/column cites for every limitation.
2. Effective prior-art dates matter — see §2. Two references (US 6,646,672 and US 2002/0163548 A1 / US 6,452,615 B1) were granted/published after 6,906,741's 2002‑01‑29 priority date, so they can only be used as § 102(e) art as of their U.S. filing dates, not as printed publications. Foreign priority does not confer a § 102(e) date (pre-AIA; In re Hilmer). This is flagged where it matters.
3. Do not use the sibling application US 2003/0144004 A1 / US 7,096,037 B2 ("Videoconferencing bandwidth management…," same inventors, same day) as prior art. It is the same inventive entity, same-day filing, and appears only in the "Cited By" list, not the "Citations" list. It is not § 102(e)/§ 103 art against this patent.
4. Nothing here is a legal conclusion of invalidity; it is an attorney-style obviousness case, and the record (file history, any § 132 declarations, secondary considerations evidence) is not before me.

2. The prior-art pool (as cited on the page) and its qualifying dates

From the "Patent Citations (17)" / "Citations (16)" tables:

Level of ordinary skill (§ 103 anchor). A POSITA in January 2002 would have had a B.S. in EE/CS (or equivalent) plus ~2–3 years of experience in mobile/wireless communications and/or multimedia systems, or an equivalent combination, with working familiarity with: (a) PDA/palmtop architectures (Palm OS, DragonBall processors), (b) synchronization cradles and serial/USB docking, (c) cellular and short-range radio links (Bluetooth, IEEE 802.11), and (d) multimedia transport and coding (MPEG family, packet networks). This is consistent with the specification's own hardware discussion.

Claim-construction notes relevant to obviousness. (i) "handheld computer" is not limited to PDAs — the spec expressly says the device "can also be located on a desk, a lap, a wrist, a belt, or any other position" and includes PDAs, Palm-style computers, iCOMPAQ iPAQ-type devices. (ii) "MPEG3 (MP3) data" in claim 4 is taken literally as written (the spec. itself says "MPEG formats including but not limited to MPEG3") — I am not recharacterizing it as MPEG‑1 Audio Layer III. (iii) The "positioning a camera…" clauses in claims 1, 2 and 18 are largely manner-of-use / intended-result steps of using an already-integrated camera. (iv) The "synchronization cradle" in claims 8, 9, 15, 18 is claimed as structurally coupled to the handheld computer and functionally providing (a) access to a conferencing server and (b) a substantially fixed camera orientation — these two functions are the only arguably distinguishing features of those claims.

3. Primary reference: Feierbach, US 6,646,672 B2 ("Pocket video conference computer")

This is the closest single reference and, if its § 102(e) date holds, the natural primary reference.

Confirmed disclosure (from the reference's own text retrieved at https://uspto.report/patent/grant/[6646672](/patent/6646672) and the granted-PDF excerpt):

• Portable/palmtop computer with videoconferencing ability: "A portable, pocketbook-sized computer is provided with the features of a palmtop computer as well as video conferencing ability"; "The invention relates to a palmtop computer having the features and capabilities of video conferencing."
• Integrated camera, aimed at a participant / at objects: "A digital video and still picture camera 15 is provided at the inner side of the back of the pocketbook structure… The camera head can be rotated vertically through approximately 200 degrees… The camera 15 produces an image of the user on the monitor 10 when directed inward… When directed outward, items, letters or drawings can be shown to the communications partner." → positioning a camera integrated into a handheld computer to focus on a participant (claims 1, 2, 18) and a camera integrated with the housing (claim 9).
• Two-way and multi-party conference: "The two monitors are connected to each other such that the first monitor shows a picture of the built‑in video camera, while the second monitor shows the incoming picture. This allows for telephone communication between two partners or as a conference connection with many communication partners"; traffic-light talk/stand-by/don't-talk scheme "For video conference connections with 3 or more participants." → establishing a videoconference and video feed (claims 1, 2, 15, 18).
• Multiple data types / application data during the conference: word processing, graphics, drawing; "It is preferable that the device be provided with a large amount of RAM in order to accommodate large amounts of data (e.g., applications software or documents), which may be temporarily imported, manipulated, and then returned to a device such as a desktop computer"; "Sensitive data can be imported in encrypted form… manipulated using the communications computer… and re-encrypted before being exported… or any other email address"; multitasking "during work with other programs, such as word processing, graphics, and drawing." → application data (claims 5, 6, 15, 18) and switching between data types on a handheld while conferencing (claims 3, 10, 18).
• Wireless coupling: "All three components are connected to each others, such as by printed and flexible wiring or by the latest Bluetooth™ techniques."
• Processor/memory architecture for the claim‑9 apparatus: microprocessor, RAM, non‑volatile storage, operating system, application programs.

What Feierbach does not plainly show: (a) receipt of a text message simultaneously with the video feed (claim 1's (1d)); (b) a second handheld computer at the far end and selective, substantially simultaneous access by that second handheld (claim 2); (c) a synchronization cradle used as the network access path and camera stabilizer (claims 8, 9, 15, 18); (d) IEEE 802.11/Bluetooth as the wireless link with a conferencing server (claims 12–14); (e) express termination of one data type while the call continues (claim 20). Those are supplied by the secondary references below.

4. The secondary references

A. EPRI, US 5,208,745 — "Multimedia interface and method for computer system" (https://patents.google.com/patent/US5208745)

• Presents information simultaneously through "text, graphics, video, sound, speech production, and printed output."
• Express claim 2: "said application software simultaneously displaying on said first display messages corresponding to said video images" — i.e., text/messages simultaneously with video.
• Fig. 8 is described as a "side by side presentation of a video image and corresponding text."
• Claims 6 and 10: audio sequences "in conjunction with video sequences and message displays," plus a "portable, handheld satellite station" with its own display, processor, communication means and user input, to which "messages and video images" are transmitted — i.e., a handheld conferencing/remote terminal accessing a server-like host.
• Claim 5: "portable housing… enabling said computer system to be taken to and used at the place where a selected piece of equipment is located."

B. Motorola, GB 2 313 258 A — "Multimedia conferencing system…" (https://patents.google.com/patent/GB2313258A/en)

• Expressly addresses mobile multimedia conferencing: "there is envisioned a Universal Mobile Telecommunications System (UMTS) which is planned to support mobile multimedia services. One scenario… is the Multimedia Conference Call… Multimedia facilities in support of such a conference include the delivery of voice, video, text, still images and other forms of data."
• Fig. 4 is a "pictorial representation illustrating the display of voice, video, text and graphical information at a multimedia terminal" → simultaneous multi-media presentation at a mobile terminal/portable communications device.
• Multi-party conference group logistics ("a conference group must be established between three or more persons"), call setup/handover, and — critically — selective dropping/suspension of media: "several modes must be dropped or temporarily discontinued during the conference before handover to an adjacent cell is completed… since some media will have a higher priority over others…" → terminating output of one data type while the conference call is maintained (claim 20) and switching between media types (claim 3).

C. Fuji Xerox, US 6,452,615 B1 / US 2002/0163548 A1 — "System and apparatus for notetaking with digital video and ink" (https://patents.google.com/patent/US20020163548; granted text at https://patentimages.storage.googleapis.com/35/b7/ac/2b3341099f24f3/US6452615.pdf)

• "Media input streams are retrieved by a notetaking device… The media streams are from microphones, video cameras, and media players present during a notetaking session. Facilities… allow a user to capture stills from the media streams, make annotations…"
• "A channel changer allows a user to switch between the various media streams during either notetaking or playback."
• Video + ink/text are presented and annotated together, and the client manages and displays the live video and ink notes.
• "For optimizing the wireless bandwidth, frame rate compression is done… The video frames and meta data are transmitted to the NoteLook clients using standard TCP/IP methods."
• Portability: "NoteLook 2GO and NoteLook 4TV can be implemented by running the NoteLook client and server on the same pen-based notebook computer," with "a portable camera with a USB connection."

D. 3Com, US 5,900,875 A — "Method and apparatus for interacting with a portable computer system" (https://patents.google.com/patent/US5900875)

• Palmtop computer with hardware application buttons, DragonBall-class processor, Palm OS, touch-screen LCD.
• Communication cradle for synchronization: "a user drops the portable computer system 330 into the communication cradle 320 and presses a synchronization button 325 on the communication cradle 320"; the cradle provides the serial communication link to a personal computer; cradles may be USB/serial and coupled to network-connected devices ("The external data source 190 can be disposed in a desktop computer, a printer, a set-top box, a wireless base station, a network connected device…"). This is the synchronization-cradle teaching plus the ordinary and inherent mechanical stabilization of a docked handheld.

E. Wireless/handheld-network refs: US 6,633,761 (Reefedge — short-range wireless networking, seamless mobility) and US 6,633,314 (Tuli — portable device integrating a cellular telephone and palmtop computer) supply the wireless link alternatives (IEEE 802.11 / Bluetooth-class short-range links and cellular data) for claims 12–14. US 6,345,279 (IBM — "adapting multimedia content for client devices") supplies the motivation/technique for delivering multiple media types to a constrained handheld client. US 6,438,585 / US 6,389,457 (RIM) and US 6,401,085 / US 6,438,594 / US 6,332,163 (Accenture) supply messaging and network-service delivery to mobile devices relevant to claim 1's text message and claim 7's conferencing device.

F. Non-patent literature — Raychaudhuri et al. (WATMnet), 1998. A printed publication on mobile multimedia applications over a broadband wireless system, including software architecture and media processing for mobile hosts — corroborating that mobile, wireless, multi-media communication was a recognized, active art by 1998 and providing a POSITA motivation to port media-rich services to portable devices.

5. Why a POSITA would have combined these references (motivation)

KSR/MPEP § 2143 rationales apply with unusual force here, because the patent's own background section supplies the problem statement and the motivation:

1. Same field of endeavor / reasonable expectation of success. All of the above are in multimedia conferencing, portable computing, or wireless telecommunications. Feierbach (portable videoconferencing palmtop), GB 2 313 258 (mobile multimedia conferencing terminal), US 5,208,745 (portable multimedia interface with simultaneous video + text), and US 5,900,875 (palmtop + cradle) are directed to the very same problem — presenting and exchanging multiple media types on a small portable device.
2. The patent admits the unmet need and thus the motivation. The specification states: "there is a need for a mobile device to provide videoconferencing communications with other portable and/or non‑portable devices. Further, there is a need for a mobile device to provide conferencing communications with multiple media types during a conference call," and it criticizes PV AirGuide because "Interactive videoconferencing is not available or possible." A stated problem + a device ready for improvement = KSR rationale (D).
3. Known elements combined according to known methods, predictable results. Adding a text/messaging channel and application-data window to a videoconferencing terminal (EPRI; Fuji Xerox; GB 2 313 258 Fig. 4) is the combination of familiar elements yielding no more than predictable results (rationale A). Substituting a cradle-mediated network path for a direct wireless path (US 5,900,875) is substitution of a known element to obtain its known benefit — power, a stable physical mount, and a wired link to a network (rationale B).
4. Design incentives and market forces. The portability-vs.-functionality tradeoff is the express theme of the patent's background. The industry-wide push to put conferencing on palmtops (Feierbach; Tuli; Reefedge; WATMnet) is a market-force rationale (rationale G), and the specification itself concedes that cradles, Graffiti handwriting recognition, MPEG coding, Bluetooth and IEEE 802.11 were all known.
5. Predictable variation of a workable embodiment. Selecting IEEE 802.11 vs. Bluetooth as the radio link, or MPEG-family coding for the video/audio stream, is exactly the "predictable variation" of known techniques (rationales D/F) that KSR holds unpatentable.

6. Claim-by-claim obviousness mapping

Notation: [F] Feierbach US 6,646,672; [XM] Motorola GB 2 313 258; [E] EPRI US 5,208,745; [FX] Fuji Xerox US 6,452,615 / US 2002/0163548; [C] 3Com US 5,900,875; [W] Reefedge US 6,633,761 + Tuli US 6,633,314; [N] Accenture/RIM/IBM network & messaging refs; [R] Raychaudhuri WATMnet.

7. Strongest and weakest points

Strongest obviousness positions

• Claim 20 over GB 2 313 258 alone/with Feierbach: the reference's media-drop-during-handover passage maps almost verbatim onto "terminating the output of one of the first data type and the second data type without terminating the conference call."
• Claim 1 over Feierbach + EPRI (or Feierbach + GB 2 313 258): every element has a documentary home — integrated camera aimed at a participant (Feierbach), videoconference (Feierbach), video feed (Feierbach), and simultaneously displayed text (EPRI's "side by side… video image and corresponding text"; or GB 2 313 258 Fig. 4; or Fuji Xerox's ink + live video).
• Claim 15 over Feierbach + EPRI + 3Com: video + audio + application data simultaneously is disclosed across Feierbach and EPRI; the cradle is 3Com.
• Claims 5, 6 (application data = word processing / presentation) are met essentially by Feierbach alone.
• Claims 12–14 — selection between 802.11 and Bluetooth is the paradigm KSR "known technique/known alternatives" case, and Bluetooth is named in Feierbach itself.

Weakest / most contestable points

1. The "synchronization cradle" claims (8, 9, 15, 18). The 3Com reference discloses the cradle as a synchronization link to a PC; it does not disclose a cradle used specifically as the conduit to a conferencing server, nor a cradle whose purpose includes holding an integrated camera at a substantially fixed orientation. A patentee argument of non-obviousness would likely focus here, contending that the "conferencing server via the cradle" and "camera stabilization" functions are an unconventional repurposing of a sync dock. The counter is strong but fact-based: (a) docking inherently fixes orientation; (b) Feierbach's camera rotates 200° precisely so it can be aimed at the user or at documents — a POSITA needing a stable aim would dock the device; (c) 3Com itself says the cradle/dock can connect to "a wireless base station, a network connected device," which is a server-class destination. Still, this is the limitation set that would most plausibly support a § 103 "unexpected result/non-analogous use" response.
2. Claim 4 (MPEG3/MP3). None of the page's cited references appears to name MPEG3. This element would rest on art-recognized knowledge (and the specification's own admission that MPEG formats were known), so it is the element most likely to need an additional reference outside the cited list.
3. "Second handheld computer" in claim 2. Neither Feierbach nor EPRI is framed as a handheld-to-handheld conference; that comes from combining Feierbach with GB 2 313 258's mobile conference terminals (and/or Tuli's palmtop/cellular integration). The combination is well motivated but is stitched rather than single-reference.
4. Antecedent-basis and coined-term enforcement. Several claim phrases are functional/relative ("access selectively and substantially simultaneously," "at least a portion of a videoconferencing feed," "relatively fixed orientation") and could be construed to cover any display of two media at a time — which broadens rather than narrows the prior-art overlap, strengthening the § 103 case and weakening any § 112-based distinction.

8. Secondary considerations (Graham factor 4)

I found no evidence of record in the supplied materials of unexpected results, long-felt-but-unmet need, failure of others, copying, industry praise, or licensing attributable to the claimed subject matter. Two points to note:

• The patent expired 2023‑04‑09 ("Expired – Lifetime," adjusted expiration) after traversing Palm → Hewlett‑Packard Development Company, L.P. → Qualcomm Incorporated (per the Google Patents assignment timeline), so the practical significance today is historical (past damages/validity in litigation) rather than prospective enforcement.
• If a patentee were to assert commercial success of Palm/Handspring-era handhelds, it would need to establish nexus to the claimed features (multiple simultaneously accessible media types during a conference call, the cradle/conferencing-server coupling), not merely to the popularity of the PDA platform generally. The portability-vs.-functionality tradeoff the patent describes is a known design tradeoff, which under KSR weighs toward obviousness rather than against it.

9. Confidence and verification notes

• High confidence: the content of Feierbach US 6,646,672 (integrated rotatable camera, palmtop + videoconferencing, two monitors, 3+ party conference, application programs, Bluetooth); Motorola GB 2 313 258 (mobile multimedia conference, voice/video/text/still-image/data delivery, media dropping during handover); EPRI US 5,208,745 (simultaneous video + text presentation, audio + video, portable handheld satellite station); Fuji Xerox US 6,452,615 (live video + ink, channel changer, wireless bandwidth/frame-rate handling); 3Com US 5,900,875 (palmtop + communication/synchronization cradle + network-connected data source).
• Moderate confidence: the exact per-limitation wording for claims 4 (MPEG3), 6 (presentation data) and the "conferencing server" aspect of claims 8–9, because the page's cited references do not recite those terms and I am extrapolating from art-recognized knowledge and the specification's own admissions.
• Unverified / must be checked before relying on it:
  1. The U.S. filing date of US 6,646,672 (needed for the § 102(e) date; Hilmer bars using the 2000‑12‑21 German utility-model date).
  2. The publication date of German utility model 200 21 842.5 if a printed-publication route is needed.
  3. Whether any of the cited references were sworn behind under Rule 131 or disqualified under § 103(c) (all the key references here are third-party, so § 103(c)/AIA § 102(b)(2)(C) common-ownership disqualification should not apply — but confirm no common ownership between Palm and Reefedge/Tuli/Fuji Xerox/EPRI).
  4. The full claim charts should be rebuilt against the granted texts of US 6,646,672 and US 6,452,615 with column/line cites, and against GB 2 313 258 Fig. 4 and page 3–4 of the printed specification, rather than the excerpts used here.

Sources consulted: https://patents.google.com/patent/US6906741/en (full text, claims, citation tables); https://uspto.report/patent/grant/6646672 and https://patentimages.storage.googleapis.com/1e/82/24/669b090398d203/US6646672.pdf (US 6,646,672); https://patents.google.com/patent/GB2313258A/en and https://patentimages.storage.googleapis.com/96/8b/8c/b8bcd0be166446/GB2313258A.pdf (GB 2 313 258 A); https://patents.google.com/patent/US5208745 (US 5,208,745); https://patents.google.com/patent/US20020163548 and https://patentimages.storage.googleapis.com/35/b7/ac/2b3341099f24f3/US6452615.pdf (US 6,452,615 / US 2002/0163548 A1); https://patents.google.com/patent/US5900875 (US 5,900,875).