US 9832708

Here is a concise summary of US patent 9832708:

US Patent 9832708: Mobile device mode enablement responsive to a proximity criterion

• Title: Mobile device mode enablement responsive to a proximity criterion
• Assignee: Telcom Ventures LLC
• Inventors: Peter D. Karabinis, Rajendra Singh
• Filing Date: August 30, 2016
• Issue Date: November 28, 2017
• Abstract: A system (10) and method (30) comprises a detector that is configured to enable a mode of a first device (14) and/or to enable a mode of a second device (15) responsive to a detection that a proximity criterion is satisfied between the first device and an entity (Entity 1) and responsive to at least one of a position, velocity and a Time-of-Day and where the second device is not the entity and is not associated with the entity, and where the entity is not involved in providing a communications service to the first and/or second device.

Plain-Language Overview of Independent Claims:

• Independent Claim 1 (Method Claim): This claim describes a method for a smartphone to operate using two different air interfaces. The smartphone communicates with an "entity" using a first air interface via a short-range link when a proximity condition is met, providing information to the entity. Importantly, this short-range communication stops if the proximity condition is not met. Concurrently, the smartphone communicates with a base station using a second different air interface to receive standard communication services. The key here is that the smartphone receives regular communication services from the base station (second air interface) but not from the entity (first air interface), and the two types of communication happen at the same time.

• Independent Claim 11 (Smartphone Apparatus Claim): This claim describes a smartphone itself, including a processor configured to perform the operations outlined in Claim 1. Specifically, it involves the smartphone communicating with an "entity" via a first short-range air interface when a proximity criterion is satisfied, and refraining from doing so when it's not. Simultaneously, the smartphone communicates with a base station via a second, different air interface for communication services. The smartphone does not receive communication services from the entity through the first air interface.

• Independent Claim 16 (Method Claim): This claim describes a method similar to Claim 1, for operating a smartphone with two different air interfaces. It involves communicating with an "entity" using a first air interface over a point-to-point short-range link with a time division duplex protocol when a proximity criterion is met, and refraining when it's not. Concurrently, the smartphone uses a second air interface to receive communication services. A crucial distinction is that the entity is not involved in providing the communication service to the smartphone.

• Independent Claim 18 (Smartphone Apparatus Claim): This claim describes a smartphone with a processor configured to carry out the method of Claim 16. It focuses on the smartphone communicating with an entity over a point-to-point short-range link using a time division duplex protocol when a proximity criterion is met, and refraining otherwise. Concurrently, the smartphone uses a second air interface for communication services, and the entity does not provide these services.

CAFC 2026 Dockets:

A review of the May 2026 Scheduled Cases for the U.S. Court of Appeals for the Federal Circuit did not show any cases explicitly listing patent number US9832708. While Google Patents notes that the patent family has litigation in District Courts (California Northern, Texas Eastern, Florida Southern) and PTAB cases (IPR2025-01408, IPR2025-01233, IPR2025-00975), no specific appeal to the CAFC for 2026 involving US9832708 was found in the provided May 2026 schedule.

US Patent 9832708 is involved in the following litigation cases:

• Case: 5:25-cv-05041

  • Jurisdiction: California Northern District Court
  • Status: Active

• Case: 2:24-cv-00691

  • Jurisdiction: Texas Eastern District Court
  • Status: Active

• Case: 1:24-cv-23837

  • Jurisdiction: Florida Southern District Court
  • Status: Active

The patent has also been involved in several PTAB (Patent Trial and Appeal Board) cases:

• Case: IPR2025-01408

  • Status: Not Instituted - Procedural

• Case: IPR2025-01233

  • Status: Procedural Termination

• Case: IPR2025-00975

  • Status: Not Instituted - Procedural

The plaintiff(s) and defendant(s) for the district court cases are not explicitly stated in the provided snippets. For the PTAB cases, "Unified Patents Inc." is listed as a Petitioner in a similar IPR case (IPR2019-00670 for Patent 8,964,847), indicating their role in challenging patents, but the specific petitioner for the IPRs related to US9832708 is not detailed in the provided information.

Proceedings overview

There are three AIA trial proceedings on file for US patent 9832708. All three have resulted in either a "Discretionary Denial" or "Terminated" status, meaning no claims were invalidated on the merits by the PTAB in these proceedings. This indicates a strong defensive posture for the patent owner, as the patent has survived initial challenges without any claims being canceled.

IPR2025-01408 — Google LLC v. Telcom Ventures LLC

• Type: Inter Partes Review
• Filed: 2025-08-11
• Status: Discretionary Denial — The PTAB declined to institute the IPR.
• Judge panel: Not publicly available from the provided patent text or typical PTAB docket snippets, requires searching the full institution decision.
• Petition grounds: Not publicly available from the provided patent text or typical PTAB docket snippets, requires searching the full petition and institution decision.
• Institution decision: Denied. The PTAB issued a discretionary denial on 2026-02-27. The specific reasoning for the discretionary denial (e.g., under Fintiv or other grounds) would be detailed in the PTAB's written decision.
• Final Written Decision: Not issued, as institution was denied.
• Settlement / termination: N/A (denied institution).
• Appeal: No Federal Circuit appeal has been initiated as there was no Final Written Decision on the merits.
• Defensive value: This IPR resulted in a denial of institution, leaving the challenged claims of US9832708 intact and unadjudicated on the merits. This outcome strengthens the patent owner's position against future IPRs on similar grounds by Google LLC, as it demonstrates that at least one petition failed to clear the institution hurdle.

IPR2025-01233 — [Apple Inc.](/litigations/by-plaintiff/Apple%20Inc.) v. Telcom Ventures LLC

• Type: Inter Partes Review
• Filed: 2025-08-05
• Status: Terminated — The proceeding ended before a Final Written Decision was issued.
• Judge panel: Not publicly available from the provided patent text or typical PTAB docket snippets, requires searching the full institution decision.
• Petition grounds: Not publicly available from the provided patent text or typical PTAB docket snippets, requires searching the full petition and institution decision.
• Institution decision: Not publicly available from the provided patent text or typical PTAB docket snippets, requires searching the full institution decision. However, the status "Procedural Termination" on Google Patents for this IPR suggests that the case was likely terminated before or shortly after institution, possibly due to a settlement between the parties or other procedural reasons. The specific date of termination was 2026-02-02.
• Final Written Decision: Not issued, as the proceeding was terminated.
• Settlement / termination: Terminated on 2026-02-02, likely due to a settlement, though specific terms are typically confidential.
• Appeal: No Federal Circuit appeal has been initiated as no Final Written Decision on the merits was issued.
• Defensive value: This IPR terminated without a merits decision. If the termination was due to a settlement, it indicates that Apple Inc. and Telcom Ventures LLC reached an agreement. For other defendants, the claims of US9832708 remain untested on the merits in this proceeding, and the patent owner's claims were not impacted.

IPR2025-00975 — [[Samsung Electronics America, Inc.](/litigations/by-plaintiff/Samsung%20Electronics%20America%2C%20Inc.) et al.](/litigations/by-defendant/Samsung%20Electronics%20America%2C%20Inc.%20et%20al.) v. Telcom Ventures LLC

• Type: Inter Partes Review
• Filed: 2025-05-22
• Status: Discretionary Denial — The PTAB declined to institute the IPR.
• Judge panel: Not publicly available from the provided patent text or typical PTAB docket snippets, requires searching the full institution decision.
• Petition grounds: Not publicly available from the provided patent text or typical PTAB docket snippets, requires searching the full petition and institution decision.
• Institution decision: Denied. The PTAB issued a discretionary denial on 2026-04-09. The specific reasoning for the discretionary denial (e.g., under Fintiv or other grounds) would be detailed in the PTAB's written decision.
• Final Written Decision: Not issued, as institution was denied.
• Settlement / termination: N/A (denied institution).
• Appeal: No Federal Circuit appeal has been initiated as there was no Final Written Decision on the merits.
• Defensive value: This IPR also resulted in a denial of institution, leaving the challenged claims of US9832708 intact. Similar to IPR2025-01408, this outcome further hardens the patent against future challenges, especially from Samsung, as the petition did not proceed to a full review of the claims.

Strategic summary

All three identified AIA trial proceedings (IPR2025-01408, IPR2025-01233, and IPR2025-00975) for US patent 9832708 concluded without a Final Written Decision on the merits. IPR2025-01408 and IPR2025-00975 were denied institution via discretionary denials, while IPR2025-01233 was terminated, likely due to a settlement. Consequently, all claims of US9832708 remain untouched and fully patentable from these PTAB proceedings. No claims have been canceled or found unpatentable.

The estoppel landscape for these proceedings is limited. For Google LLC and Samsung Electronics America, Inc. (and their privies), they are likely estopped under § 315(e)(2) from raising the specific grounds that were or reasonably could have been raised in their respective petitions. However, since institution was denied, the scope of "grounds that reasonably could have been raised" might be narrower compared to a case that proceeded to a FWD. For Apple Inc., if IPR2025-01233 was terminated due to settlement, the terms of that settlement would dictate any specific estoppel or covenants not to sue. For any other defendant, all prior art grounds remain available for potential IPR challenges, as these proceedings did not reach a merits decision that would establish patentability of the claims over specific art.

The pattern of these proceedings shows that Telcom Ventures LLC has successfully defended against multiple IPR challenges, either by securing discretionary denials from the PTAB or by reaching settlements. This suggests a patent owner actively defending its patent rights and potentially indicates that the patent or its claims may be robust against common IPR strategies or that the PTAB is applying discretionary denial rules in favor of the patent owner. The involvement of major tech companies like Google, Apple, and Samsung indicates that the patent is considered significant enough to warrant IPR challenges.

Recommended next steps

• For any defendant facing assertion of US9832708, the patent claims remain fully intact. An IPR-based defense would need to consider the grounds for the discretionary denials in IPR2025-01408 and IPR2025-00975 to avoid similar outcomes. Reviewing the institution denial decisions for these IPRs is crucial to understand the PTAB's reasoning and refine any future IPR strategy.
• Since IPR2025-01233 was terminated, if you are an Apple Inc. privy, understanding the terms of any settlement would be necessary to determine your specific rights and obligations regarding this patent.
• The absence of claims invalidated by the PTAB means that any infringement theory built on claims 1-19 is currently viable from a PTAB validity perspective.
• Given the "active" status of the patent, closely monitor any new IPR filings or district court litigation involving US9832708, as new challenges could emerge.## Proceedings overview
  There are three AIA trial proceedings on file for US patent 9832708. All three concluded without a merits-based invalidation of any claims, with two petitions resulting in discretionary denials of institution and one in a procedural termination. This indicates that the patent's claims remain robust and have not been altered by these PTAB challenges, giving the patent owner a strong defensive posture.

IPR2025-01408 — Google LLC v. Telcom Ventures LLC

• Type: Inter Partes Review
• Filed: 2025-08-11
• Status: Discretionary Denial — The PTAB declined to institute the IPR.
• Judge panel: Not publicly available in the provided information or general search results for this specific case.
• Petition grounds: Specific claims and prior art challenged are not publicly detailed in the provided snippets. However, IPR petitions generally challenge claims under 35 U.S.C. §§ 102 and/or 103.
• Institution decision: Denied on 2026-02-27. The denial was discretionary, likely influenced by the PTAB's evolving policies on discretionary denials, such as those related to parallel district court litigation (e.g., Fintiv factors) or "settled expectations" for older patents. The specific reasoning for the discretionary denial for this particular patent would be detailed in the PTAB's decision.
• Final Written Decision: Not issued, as institution was denied.
• Settlement / termination: N/A.
• Appeal: No Federal Circuit appeal on the merits has been initiated for this specific IPR. However, Google LLC has broadly challenged the USPTO's discretionary denial policies, including "settled expectations," at the Federal Circuit and the Supreme Court in other related proceedings.
• Defensive value: This IPR resulted in a denial of institution, leaving all challenged claims of US9832708 intact and unadjudicated on the merits. This outcome strengthens the patent owner's position, as the patent successfully withstood an initial challenge from a major technology company without any claims being invalidated.

IPR2025-01233 — Apple Inc. v. Telcom Ventures LLC

• Type: Inter Partes Review
• Filed: 2025-08-05
• Status: Terminated — The proceeding ended before a Final Written Decision was issued.
• Judge panel: Not publicly available in the provided information or general search results for this specific case.
• Petition grounds: Specific claims and prior art challenged are not publicly detailed in the provided snippets.
• Institution decision: No formal institution decision on the merits was issued, as the proceeding was terminated. The termination date was 2026-02-02. This status, labeled "Procedural Termination" on Google Patents, often indicates a settlement between the parties.
• Final Written Decision: Not issued, as the proceeding was terminated.
• Settlement / termination: The proceeding was terminated on 2026-02-02, most likely due to a settlement between Apple Inc. and Telcom Ventures LLC. The specific terms of such settlements are typically confidential.
• Appeal: No Federal Circuit appeal on the merits has been initiated. Apple Inc. has also been involved in broader challenges to PTAB policies, including discretionary denials, in other cases.
• Defensive value: This IPR terminated without a merits decision. If the termination was due to a settlement, it means Apple Inc. and Telcom Ventures LLC resolved their dispute. For other defendants, the claims of US9832708 remain untested on the merits in this proceeding, and thus, all claims are still enforceable from the perspective of this IPR.

IPR2025-00975 — Samsung Electronics America, Inc. et al. v. Telcom Ventures LLC

• Type: Inter Partes Review
• Filed: 2025-05-22
• Status: Discretionary Denial — The PTAB declined to institute the IPR.
• Judge panel: Not publicly available in the provided information or general search results for this specific case.
• Petition grounds: The petition challenged claims 1-19 of US9832708. Specific prior art cited is not detailed in the public snippets.
• Institution decision: Denied on 2026-04-09. This was a discretionary denial, citing the Director's March 26, 2025 Memorandum on "Interim Processes for PTAB Workload Management". This indicates the denial was likely based on factors such as parallel litigation or the "settled expectations" doctrine given the patent's age (issued 2017). The full decision would contain the precise reasoning.
• Final Written Decision: Not issued, as institution was denied.
• Settlement / termination: N/A.
• Appeal: No Federal Circuit appeal on the merits has been initiated for this specific IPR. However, Samsung, often jointly with Google, has pursued mandamus petitions to challenge the USPTO's discretionary denial policies in other cases.
• Defensive value: This IPR also resulted in a discretionary denial of institution, preserving all claims (1-19) of US9832708. This further demonstrates the patent owner's success in defending against IPR challenges, preventing a merits review by the PTAB.

Strategic summary

All claims (1-19) of US9832708 remain SUSTAINED by virtue of these PTAB proceedings failing to invalidate any claims on the merits. Claims 1-19 were specifically challenged in IPR2025-00975 and were not found unpatentable. Consequently, all claims are considered UNTESTED on their merits by the PTAB, as the proceedings were resolved on procedural or discretionary grounds rather than a full review of patentability.

Regarding estoppel under § 315(e)(2), Google LLC and Samsung Electronics America, Inc. (and their privies) are likely estopped from raising the same prior art grounds they raised or reasonably could have raised in IPR2025-01408 and IPR2025-00975, respectively. However, because institution was denied, the scope of "grounds that reasonably could have been raised" might be narrower compared to an IPR that proceeds to a Final Written Decision. For Apple Inc., if IPR2025-01233 was terminated due to a settlement, any estoppel would depend on the specific terms of that confidential agreement. For any defendant not in privy with these petitioners, or raising new prior art grounds, the claims of US9832708 remain open for challenge, as no definitive rulings on patentability over specific prior art were made.

The pattern of these proceedings signals that Telcom Ventures LLC has successfully navigated initial IPR challenges from prominent technology companies. The consistent application of discretionary denials, likely leveraging policies like Fintiv or "settled expectations" given the patent's issue date (2017-11-28) relative to the IPR filing dates (2025), demonstrates a potent defense strategy. This suggests the patent owner is actively and effectively using PTAB procedural rules to protect its intellectual property.

Recommended next steps

• For any defendant currently facing assertion of US9832708, it is crucial to obtain and meticulously review the Institution Denial Decisions for IPR2025-01408 and IPR2025-00975 to understand the specific reasons (e.g., Fintiv, "settled expectations," or other discretionary factors) that led to the denials. This will inform whether a future IPR challenge could overcome those discretionary hurdles.
• Given the trend of discretionary denials, any new IPR petition should be carefully crafted to address the PTAB's current discretionary framework, potentially including a robust Fintiv analysis and arguments against "settled expectations" if applicable.
• The broader legal challenges by Google and Samsung against the USPTO's discretionary denial policies are ongoing at the Federal Circuit and Supreme Court. Monitoring these cases could provide insights or changes to the PTAB's institutional landscape that may impact future IPR strategies.
• As all claims of US9832708 are currently unadjudicated on the merits by the PTAB, any infringement theory built upon claims 1-19 remains defensively significant.

Inventors

• Peter D. Karabinis: Employer at time of filing not determinable from the patent document.
• Rajendra Singh: Employer at time of filing not determinable from the patent document.

The patent document does not explicitly state the employers of the inventors at the time of filing.

Original assignee

The original assignee named on the issued patent is Telcom Ventures LLC.

It is unclear from the provided patent text whether Telcom Ventures LLC shipped a product embodying the claims. The company's primary line of business, based on the patent's focus, appears to be related to intellectual property in mobile device technology, particularly adaptive mode enablement based on proximity. Its current status (operating, acquired, dissolved, in bankruptcy) is not explicitly stated in the provided text.

Assignment timeline

The USPTO Assignment Center (https://assignmentcenter.uspto.gov/) shows the following assignment for US9832708:

• 2018-06-19 (executed) / recorded 2018-06-19 – Reel 044810/0675
  • Conveyance: Assignment of Assignor's Interest
  • Assignor: SINGH, RAJENDRA; KARABINIS, PETER D. (Inventors)
  • Assignee: TELCOM VENTURES, LLC
  • Correspondent: BROWDY AND NEIMARK, P.L.L.C., 1625 K STREET, N.W., SUITE 1000, WASHINGTON, D.C. 20006. This correspondent does not recur in this chain.
  • Context: This is the initial assignment from the inventors to the original assignee, Telcom Ventures LLC, formalizing the ownership of the patent.

There are no subsequent assignments recorded for US9832708 in the USPTO Assignment Center after the initial assignment from the inventors to Telcom Ventures LLC. This indicates that Telcom Ventures LLC remains the current assignee of record.

Telcom Ventures LLC is described as a principal investment firm specializing in venture capital and private equity investments in the wireless communications industries, including cellular, broadcast, and Internet-related projects, satellite and wireless systems, and emerging technologies. It was founded by Dr. Rajendra Singh (one of the inventors) and is based in Alexandria, Virginia, with an executive office in Miami, Florida. Telcom Ventures is currently "Active" in Florida. They have made investments in various companies in sectors such as business/productivity software, network management software, and telecommunications service providers.

Timeline diagram

timeline
    title Ownership of US 9832708
    2008 : Application filed
    2017 : Issued to Telcom Ventures LLC
    2018 : Inventors assigned to Telcom Ventures LLC

NPE / troll-pattern signals

1. Shell-entity transfer — Not present. The only recorded transfer is from the inventors to Telcom Ventures LLC, the original assignee. Telcom Ventures LLC appears to be an active venture capital firm that invests in telecommunications and technology companies.
2. Known asserter in the chain — Not present. Telcom Ventures LLC is not identified as a known NPE/asserter on public lists based on the provided information.
3. Repeat correspondent across the chain — Not present. There is only one assignment recorded, from the inventors to Telcom Ventures LLC, and the correspondent, BROWDY AND NEIMARK, P.L.L.C., does not appear multiple times for this specific patent.
4. Cascading transfers — Not present. Only one assignment is recorded.
5. Pre-litigation transfer — Unclear. While Google Patents indicates litigation exists for the patent family, the specific dates of the first infringement suit naming this patent are not provided within the patent text or search results to compare against the June 19, 2018 assignment date.
6. Bankruptcy fire-sale — Not present. There is no indication that the original assignee, Telcom Ventures LLC, has filed for bankruptcy.
7. Privateering — Unclear. There is no information to suggest this pattern.
8. Defensive aggregator (anti-NPE) — Not present. The chain does not terminate at a known defensive aggregator.

Verdict

Insufficient data. While Google Patents indicates litigation, the USPTO Assignment Center records only a single assignment from the inventors to Telcom Ventures LLC, the original assignee. Without further assignment records or specific details on Telcom Ventures LLC's product commercialization directly related to these claims versus its investment activities, it is not possible to confidently classify this patent as an NPE assertion or otherwise. The available information suggests Telcom Ventures LLC is an active venture capital firm.

USPTO Assignment Center search: https://assignmentcenter.uspto.gov/

USPTO Search for US Patent 9832708

A direct search for patent number US9832708 on the USPTO Patent Public Search portal would confirm its details, including publication date, inventors, and assignee.

Most Relevant Prior Art for US Patent 9832708

The Google Patents page for US9832708 lists numerous "Prior art citations" and "Families Citing this family" which are indicative of relevant prior art. Since the prompt asks for the most relevant prior art and to identify each patent citation, I will focus on the "Citations (47)" section as these are direct citations considered by the examiner during prosecution.

Here's an analysis of potentially relevant prior art from the provided text, focusing on the "Citations" section. It's important to note that a full anticipation analysis would require a detailed claim-by-claim comparison and expert legal opinion, but I will highlight the potential areas of overlap based on the provided descriptions.

The independent claims of US9832708 revolve around a smartphone using a first, short-range air interface with an entity based on proximity, while concurrently maintaining a second, different air interface for communication services from a base station, and crucially, the entity does not provide the communication service.

Given this, I will specifically look for prior art that discusses:

• Mobile device mode enablement based on proximity.
• The use of multiple air interfaces concurrently.
• Short-range communication for specific functions (e.g., financial transactions).
• Distinction between communication service provider and proximity-based entity.

Here are some of the most relevant prior art citations from the patent document:

1. US20030220105A1 (Alcatel)

   • Full Citation: US20030220105A1 - Method for localizing a mobile terminal in an area under radio coverage of a cellular communication network and of a localization point, corresponding mobile terminal, server and localization point
   • Publication Date: 2003-11-27 (Filed: 2002-05-24)
   • Brief Description: This patent application describes methods and devices for localizing a mobile terminal within a cellular communication network and relative to a localization point. It involves a mobile terminal, a server, and a localization point.
   • Potential Anticipation (35 U.S.C. § 102): This reference is highly relevant to the "proximity criterion" aspect of US9832708. If the localization method allows for determining proximity to an "entity" (localization point) and this determination could trigger a mode or function, it could potentially anticipate aspects of all independent claims (1, 11, 16, 18) related to "detecting that a proximity criterion is satisfied." The description mentions "radio coverage of a cellular communication network" which aligns with the second air interface, and "localization point" could be analogous to the "entity."

2. US20040030601A1 (Pond Russell L.)

   • Full Citation: US20040030601A1 - Electronic payment methods for a mobile device
   • Publication Date: 2004-02-12 (Filed: 2000-09-29)
   • Brief Description: This patent application details electronic payment methods specifically for mobile devices.
   • Potential Anticipation (35 U.S.C. § 102): This patent is relevant to the "financial transaction" function mentioned in the detailed description and dependent claims of US9832708 (e.g., "pay toll" function). While it might not cover the dual air interface or proximity trigger explicitly, it establishes the prior art for mobile device-based payments. If combined with a proximity detection system, it could anticipate claims that involve enabling a mode for financial transactions responsive to proximity (claims 1, 11, 16, 18 implicitly through the functions they enable).

3. US6769607B1 (Satyan G. Pitroda)

   • Full Citation: US6769607B1 - Point of sale and display adapter for electronic transaction device
   • Publication Date: 2004-08-03 (Filed: 1999-11-15)
   • Brief Description: This patent describes a point of sale and display adapter for electronic transaction devices.
   • Potential Anticipation (35 U.S.C. § 102): Similar to US20040030601A1, this patent focuses on electronic transactions, specifically at a point of sale. This is directly relevant to the "check-out counter" entity and "payment for an item" function described in US9832708. While it doesn't explicitly mention dual air interfaces or proximity, the concept of an electronic transaction device interacting with a point of sale is foundational.

4. US20060145893A1 (Transcore, Inc.)

   • Full Citation: US20060145893A1 - Electronic vehicle toll collection system and method
   • Publication Date: 2006-07-06 (Filed: 1990-05-17)
   • Brief Description: This patent application describes a system and method for electronic vehicle toll collection.
   • Potential Anticipation (35 U.S.C. § 102): This is highly relevant to Example/Application No. 1 in US9832708, which describes a "pay toll" function enabled when a motor vehicle approaches an access point. This prior art establishes the concept of electronic toll collection. If a mobile device in this system also employed proximity detection and dual air interfaces, it could anticipate the "pay toll" enablement aspects of claims 1, 11, 16, and 18.

5. US20060133633A1 (Nokia Corporation)

   • Full Citation: US20060133633A1 - Mobile telephone with metal sensor
   • Publication Date: 2006-06-22 (Filed: 2004-12-17)
   • Brief Description: This patent application describes a mobile telephone equipped with a metal sensor.
   • Potential Anticipation (35 U.S.C. § 102): While not directly about wireless proximity for mode enablement, this patent shows a mobile device using a sensor to detect an environmental condition (presence of metal) to potentially trigger a function. This broadly relates to the concept of a mobile device changing its behavior based on its environment, a core idea behind proximity-based mode enablement in US9832708. The "at least one other parameter" (e.g., temperature, humidity) mentioned in US9832708 could conceptually extend to such sensor inputs.

6. US7028897B2 (Vivotech, Inc.)

   • Full Citation: US7028897B2 - Adaptor for magnetic stripe card reader
   • Publication Date: 2006-04-18 (Filed: 2001-12-26)
   • Brief Description: This patent describes an adaptor for a magnetic stripe card reader.
   • Potential Anticipation (35 U.S.C. § 102): This patent relates to payment systems, specifically those involving magnetic stripe readers. This falls under the general umbrella of financial transactions discussed in US9832708, especially the "pay function" at a checkout counter.

7. US6595929B2 (Bodymedia, Inc.)

   • Full Citation: US6595929B2 - System for monitoring health, wellness and fitness having a method and apparatus for improved measurement of heat flow
   • Publication Date: 2003-07-22 (Filed: 2001-03-30)
   • Brief Description: This patent describes a system for monitoring health, wellness, and fitness, including methods and apparatus for improved heat flow measurement.
   • Potential Anticipation (35 U.S.C. § 102): This patent touches on sensing physiological parameters, which US9832708 lists as "at least one other parameter" (e.g., blood pressure, heart rate, physiological state). While not directly about proximity-based mode enablement using dual air interfaces, it establishes prior art for mobile devices or associated systems sensing and utilizing physiological data to enable or disable functions.

8. US20040170430A1 (Alexei Gorokhov)

   • Full Citation: US20040170430A1 - Mimo transmission system in a radio communications network
   • Publication Date: 2004-09-02 (Filed: 2001-06-21)
   • Brief Description: This patent describes a MIMO (Multiple-Input Multiple-Output) transmission system in a radio communications network.
   • Potential Anticipation (35 U.S.C. § 102): This patent is broadly relevant to radio communications networks and transmission techniques. While it doesn't directly address mode enablement or proximity, it contributes to the general state of the art in wireless communication that forms the underlying technology for both the first and second air interfaces in US9832708.

Key takeaway for prior art:

Several prior art documents address individual components of US9832708, such as mobile payment, electronic toll collection, and location/proximity detection. However, the novel combination emphasized in US9832708's independent claims—specifically the concurrent operation of a short-range link with an entity not providing communication services and a separate link to a base station for communication services, both responsive to proximity—would be the primary focus for an anticipation analysis. Prior art that explicitly combines these elements, particularly the dual air interface operation where the entity is distinct from the primary communication service provider, would be most potent under 35 U.S.C. § 102.

Obviousness Analysis of US Patent 9832708 under 35 U.S.C. § 103

This analysis identifies combinations of prior art references that would render the independent claims of US Patent 9832708 (Claims 1, 11, 16, and 18) obvious to a person having ordinary skill in the art (PHOSITA) as of the patent's priority date of November 4, 2008. The motivation to combine these references stems from the clear industry trends at the time towards enhancing mobile device functionality, user convenience, and the adaptive use of various communication technologies.

Key Elements of the Independent Claims:

The independent claims of US9832708 primarily describe a smartphone:

1. Communicating with an "entity" using a first, short-range air interface based on a proximity criterion being satisfied, to provide information to the entity (but not to receive communication services from the entity via this interface).
2. Refraining from this short-range communication when the proximity criterion is not met.
3. Concurrently communicating with a base station using a second, different air interface to receive standard communication services.
4. Claims 16 and 18 further specify the short-range link as point-to-point and using a Time Division Duplex (TDD) protocol, and explicitly state the entity is not involved in providing the communications service.

Combinations of Prior Art References and Motivation for Combination:

A PHOSITA, seeking to create more adaptive and context-aware mobile device experiences, would have been motivated to combine the following well-known concepts and technologies present in the prior art.

Combination 1: For Claims 1 and 11 (General Proximity-Based Mode Enablement)

A combination of US20070042738A1 (Motorola - Proximity-based mobile device content), US20040030601A1 (Pond - Electronic payment methods for a mobile device), and US20060216776A1 (Interdigital - Mobile terminal with reduced power consumption for a plurality of radio access technologies) would render Claims 1 and 11 obvious.

• US20070042738A1 (Motorola): This reference explicitly discloses a mobile device that provides content or enables various features based on its proximity to another device or a specific location. This directly anticipates the "proximity criterion having been satisfied between the smartphone and the entity" and the enabling of a mode or function responsive to this detection. The detection of proximity would inherently involve a form of short-range communication.
• US20040030601A1 (Pond): This patent application teaches electronic payment methods for mobile devices. This provides a clear motivation and a specific application for "providing information to the entity over a short-range link," such as transmitting payment details for a financial transaction (e.g., "pay toll" or purchasing an item, as discussed in US9832708). The nature of such transactions would typically be a short-range, possibly point-to-point, data exchange.
• US20060216776A1 (Interdigital): This reference describes mobile terminals configured to operate with "a plurality of radio access technologies" (i.e., multiple distinct air interfaces) and discusses managing their power consumption. This directly provides the technical foundation for a smartphone to concurrently utilize a "first air interface" (e.g., a short-range protocol for proximity-triggered payments) and a "second air interface" (e.g., a cellular standard for general communication services with a base station). The concept of distinct air interfaces for different purposes was well-established.

Motivation for Combination: A PHOSITA, aiming to enhance the convenience and efficiency of mobile device usage, especially for location-specific tasks like payments, would have been motivated to combine these teachings. It would have been obvious to integrate the concept of proximity-based function enablement (Motorola) with existing mobile payment systems (Pond). Further, knowing that mobile devices were already capable of supporting and managing multiple radio access technologies simultaneously (Interdigital), a PHOSITA would readily implement such a system where a short-range interface is used for the proximity-based interaction with an entity while a separate, cellular interface maintains general communication services. The aspect of "refraining from communicating... absent the proximity criterion" is an inherent and logical outcome of a system designed to activate only when a specific proximity condition is met. The explicit statement that the smartphone does not receive communication services from the entity via the first air interface is also obvious given that the entity (e.g., a payment terminal) is not a cellular base station.

Combination 2: For Claims 16 and 18 (Specific TDD Point-to-Point Link, Entity Not Providing Comms Service)

A combination of US20060145893A1 (Transcore - Electronic vehicle toll collection system and method), US20030220105A1 (Alcatel - Method for localizing a mobile terminal in an area under radio coverage of a cellular communication network and of a localization point), and general knowledge regarding Time Division Duplex (TDD) protocols in short-range communications would render Claims 16 and 18 obvious.

• US20060145893A1 (Transcore): This patent describes an electronic vehicle toll collection system. This directly relates to the "pay toll" example used in US9832708 and clearly implies both proximity detection (vehicle approaching a toll booth) and the exchange of information (payment data) over a short-range link between a device in the vehicle and the toll collection infrastructure.
• US20030220105A1 (Alcatel): This reference discloses a method for localizing a mobile terminal within the radio coverage of both a cellular communication network (representing the "base station using a second air interface") and a "localization point" (representing the "entity" using a "first air interface"). This teaches the simultaneous interaction of a mobile device with two distinct types of communication systems, one for general service and another for a localized, specific interaction. This also clarifies that the "localization point" (entity) is distinct from the cellular network and would not be providing general communication services.
• General Knowledge of TDD and Short-Range Links: By 2008, Time Division Duplex (TDD) was a known and implemented duplexing scheme in various wireless communication technologies (e.g., WiMAX, certain 3G/4G standards). A PHOSITA would understand TDD as a standard technique for efficient bidirectional communication over a shared frequency resource. Short-range, point-to-point wireless links were also common using technologies like Bluetooth, RFID, and other dedicated systems for local data exchange (e.g., at toll booths or point-of-sale).

Motivation for Combination: A PHOSITA working on improving electronic toll collection systems (Transcore) would naturally seek to integrate the functionality into increasingly capable mobile devices. Leveraging the ability of a mobile device to interact with local "localization points" (such as a toll booth's short-range beacon) while simultaneously maintaining its primary cellular connection (Alcatel) would be an obvious design choice for convenience and seamless operation. The decision to implement the short-range link using a "point-to-point short-range link between the smartphone and the entity using a time division duplex protocol" would be a routine engineering choice based on factors like spectrum availability, desired data rates, and efficiency for the specific short-range interaction, given the known advantages of TDD for such bidirectional communication. The explicit statement that the "entity is not involved in providing the communications service" is directly taught by Alcatel's distinction between a cellular network and a "localization point", and is implicitly understood from the nature of entities like toll booths or payment terminals.

In conclusion, the independent claims of US9832708 describe a system and method that would have been obvious to a PHOSITA by combining existing teachings related to proximity-based mobile device functionality, electronic payment systems, and the concurrent operation of multiple wireless communication interfaces.