US 8,897,263 Interactions among mobile devices in a wireless network
3 defendants · 3 suits · updated October 6, 2026
Also cited as U.S. Patent No. 8,897,263 · US8897263B2 · US 8,897,263 B2 · 8897263 · the '263 patent
Telsync Technologies LLC has filed 3 patent-infringement suits on US 8,897,263, "Interactions among mobile devices in a wireless network" since July 2, 2026, all in the E.D. Tex., against 3 distinct defendants including CounterPath Corporation, Druid Software Limited and Ribbon Communications Inc.. The patent was granted November 25, 2014 on a priority date of January 23, 2009. Its abstract opens: "One embodiment of the disclosure sets for a method for synchronizing multiple mobile devices in a wireless network, which includes the steps of calculating a time interval for a first mobile device to respond to a request, receiving timing information of the…" The examiner cited 4 references during prosecution.
- Assignee
- TELSYNC TECHNOLOGIES LLC
- Priority date
- January 23, 2009
- Granted
- November 25, 2014
- Expires
- January 23, 2029
- Status
- Active - Reinstated
- Claims
- 15 (3 independent)
- Inventors
- Mung Chiang
- Full text
- Google Patents
The suits
3 cases · E.D. Tex. (3)
| Filed | Defendant | Plaintiff | Court | Docket |
|---|---|---|---|---|
| 2026-07-02 | CounterPath Corporation | Telsync Technologies LLC | E.D. Tex. | 2:26-cv-00538 |
| 2026-07-02 | Druid Software Limited | Telsync Technologies LLC | E.D. Tex. | 2:26-cv-00539 |
| 2026-07-02 | Ribbon Communications Inc. | Telsync Technologies LLC | E.D. Tex. | 2:26-cv-00540 |
Docket links open the public record on CourtListener. Filing dates are the complaint's.
Independent claims
What is actually asserted, verbatim.
1. A method to maintain a communication session of an interactive application in a wireless network, comprising: determining a first identification information associated with a mobile device; in response to the mobile device leaving a first wireless range associated with the wireless network, accessing a second identification information associated with the first identification information, wherein the second identification information is assigned to the mobile device when the mobile device is in a second wireless range associated with the wireless network and registers itself to a stationary device covering the second wireless range; and maintaining the communication session with the mobile device by utilizing the second identification information in a signaling protocol.
4. A non-transitory computer-readable medium containing a sequence of instructions to maintain a communication session of an interactive application in a wireless network having a first computing device and a second computing device, which when executed by the first computing device, causes the first computing device to: determine a first identification information associated with a mobile device; in response to the mobile device leaving a first wireless range of the first computing device, access a second identification information associated with the first identification information, wherein the second identification information is assigned to the mobile device when the mobile device is in a second wireless range of the second computing device and registers itself to a stationary device covering the second wireless range; and maintain the communication session with the mobile device by utilizing the second identification information in a signaling protocol.
7. A computing device configured to maintain a communication session of an interactive application in a wireless network, the computing device comprises: a memory unit; and a processing unit, wherein the processing unit is configured to determine a first identification information associated with a mobile device, in response to the mobile device leaving a first wireless range of the computing device, access a second identification information associated with the first identification information, wherein the second identification information is assigned to the mobile device when the mobile device is in a second wireless range of another computing device in the wireless network and registers itself to the another computing device, and maintain the communication session with the mobile device by utilizing the second identification information in a signaling protocol.
Art before the examiner
11 references of record, 4 cited by the examiner.
Everything listed here was before the Office and is what a challenge must go beyond. Art the examiner never saw is where an invalidity search starts.
Examiner-cited
- US20020191561A1 — Packet distribution and selection in soft handoff for IP-based base stations among multiple subnets (Jyh-Cheng Chen)
- US20050097356A1 — Mapping wireless proximity identificator to subscriber identity for hotspot based wireless services for mobile terminals (Martin Zilliacus)
- US20080176588A1 — Method and System for Offloading Mobile-Originating Short Message Traffic (Sevis Systems, Inc.)
- US20110092207A1 — Radio network control device and radio network control method (Fujitsu Limited)
Applicant-cited and other (7)
- US5689502A — Efficient frequency division duplex communication system with interleaved format and timing adjustment control
- US20020024973A1 — Hardware time stamping and registration of packetized data method and system
- US20030119496A1 — Base station time calibration using position measurement data sent by mobile stations during regular position location sessions
- US20050137961A1 — Latency-aware asset trading system
- US20070133491A1 — Mobile communication apparatus and channel switching method of ad-hoc communication
- US20090080406A1 — System and Method for Multicast and Broadcast Synchronization in Wireless Access Systems
- US8306013B2 — Interactions among mobile devices in a wireless network
Classification
- H04W24/08primary — Testing, supervising or monitoring using real traffic
- H04N7/147 — Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
- H04N7/148 — Interfacing a video terminal to a particular transmission medium, e.g. ISDN
- H04W4/023 — Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
- H04W56/0045 — Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
- H04W64/00 — Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W76/14 — Direct-mode setup
- H04W8/24 — Transfer of terminal data
- H04W84/18 — Self-organising networks, e.g. ad-hoc networks or sensor networks
- H04W88/04 — Terminal devices adapted for relaying to or from another terminal or user
Family
- US8897263B2 — B2 (2014)
- US20130045739A1 — A1 (2013)
- US8306013B2 — B2 (2012)
- US20200015105A1 — A1 (2020)
- US20170272967A1 — A1 (2017)
- US20160105639A1 — A1 (2016)
- US9326175B2 — B2 (2016)
- US10368258B2 — B2 (2019)
- US20150050891A1 — A1 (2015)
- US9674721B2 — B2 (2017)
- US20100190503A1 — A1 (2010)
Abstract
One embodiment of the disclosure sets for a method for synchronizing multiple mobile devices in a wireless network, which includes the steps of calculating a time interval for a first mobile device to respond to a request, receiving timing information of the first mobile device, determining a first offset associated with the first mobile device based on the time interval and the timing information, receiving a first data stream including the timing information of the first mobile device, and inserting a first dataset into the first data stream based on the first offset before transmitting the first data stream.
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This page is assembled from public records — federal court dockets and the patent's own file — and is updated as the case list changes. It states what the record shows and is not an opinion on the validity or infringement of any claim. Patent data via Google Patents; docket data via CourtListener.