US 9,549,328 Method to optimize the communication parameters between an access point and at least one client device
3 defendants · 3 suits · updated October 6, 2026
Also cited as U.S. Patent No. 9,549,328 · US9549328B2 · US 9,549,328 B2 · 9549328 · the '328 patent
Arc Link LLC has filed 3 patent-infringement suits on US 9,549,328, "Method to optimize the communication parameters between an access point and at least one client device" since June 8, 2026, all in the E.D. Tex., against 3 distinct defendants including Fortinet Inc., Check Point Software Technologies Ltd. and Sophos Limited. The patent is held by Ip3 2023 Series 923 Of Allied Security Trust I and was granted January 17, 2017 on a priority date of April 11, 2013. Its abstract opens: "A method to optimize the communication on a channel between an access point and at least one client device, said channel being characterized by a center frequency and a bandwidth, comprises: establishing a connection on a first channel according to a first…" The examiner cited 6 references during prosecution.
- Assignee
- Ip3 2023 Series 923 Of Allied Security Trust I
- Priority date
- April 11, 2013
- Granted
- January 17, 2017
- Expires
- April 11, 2033
- Status
- Active
- Claims
- 13 (3 independent)
- Inventors
- Julien HERZEN, Ruben Merz, Patrick Thiran
- Full text
- Google Patents
The suits
3 cases · E.D. Tex. (3)
| Filed | Defendant | Plaintiff | Court | Docket |
|---|---|---|---|---|
| 2026-06-08 | Fortinet Inc. | Arc Link LLC | E.D. Tex. | 2:26-cv-00451 |
| 2026-06-17 | Check Point Software Technologies Ltd. | Arc Link LLC | E.D. Tex. | 2:26-cv-00476 |
| 2026-06-18 | Sophos Limited | Arc Link LLC | E.D. Tex. | 2:26-cv-00490 |
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 optimize communications on a channel between an access point and a plurality of client devices, said channel being characterized by a center frequency and a bandwidth, said method comprising: establishing by the access point a connection with the client devices on a first channel having a first center frequency and a first bandwidth; exchanging by the access point data through the first channel with the client devices; monitoring by the access point a first interference level on the first channel; reviewing compatibility levels to the access point from the client devices, a compatibility level for a client device defining whether the client device is able to dynamically switch from the first channel to another second channel having a different center frequency and if the client device will change channels in response to an instruction from the access point; instructing the client devices to switch to a second channel having a different center frequency and/or a different bandwidth only if all compatibility levels for all client devices indicate that all client devices are able to dynamically switch from the first channel to the second channel; determining by the access point a second interference level on the second channel; comparing by the access point the first interference level with the second interference level; and deciding by the access point whether to switch back to the first channel based on the comparison.
6. A method to optimize communications on a channel between an access point and a plurality of client devices, said channel being characterized by a center frequency and a bandwidth, said method comprising: establishing by the access point a connection to the client devices on a first channel having to a first center frequency and a first bandwidth; exchanging by the access point data with the client devices through the first channel; monitoring by the access point a first interference level on the first channel; reviewing compatibility levels to the access point from the client devices, a compatibility level for a client device defining whether the client device is able to dynamically switch from the first channel to another second channel having a different center frequency and if the client device will change channels in response to an instruction from the access point; temporarily switching by the access point to a second channel having a different center frequency and/or a different bandwidth only if all compatibility levels for all client devices indicate that all client devices are able to dynamically switch from the first channel to the second channel; determining by the access point a second interference level on the second channel; comparing the first interference level with the second interference level; and if the second interference level is lower than the first interference level, informing the client devices to switch to the second channel and switching the communication to the second channel.
11. An access point comprising: a processor; a wireless transceiver connected to the processor; wherein the processor is configured to establish via the transceiver communications with at least one client device on a first channel, said channel being characterized by a first center frequency and a first bandwidth; exchange data with the at least one client device via the transceiver through the first channel; monitor a first interference level on the first channel; review a compatibility level to the access point from the at least one client device, a compatibility level for a client device defining whether the client device is able to dynamically switch from the first channel to another second channel having a different center frequency and if the client device will change channels in response to an instruction from the access point; instruct the transceiver to change from the first channel to a second channel having a different center frequency and/or a different bandwidth; determine a second interference level according to the second channel; compare the first interference level with the second interference level; if the second interference level is lower than the first interference level and if the compatibility level for the at least one client device indicates that the at least one client device is able to dynamically switch from the first channel to the second channel, instruct the at least one client device to change from the first channel to the second channel and instruct the transceiver to change from the first channel to the second channel.
Art before the examiner
6 references of record, 6 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
- US20060159003A1 — Multiple frequency band operation in wireless networks (Qualcomm Incorporated)
- US20070298810A1 — Selective 40 MHz Operation in 2.4 GHz Band (Assaf Kasher)
- US20090116400A1 — Wireless communication apparatus and wireless communication method enabling switching of communication channel (Masahiro Sekiya)
- US20100279618A1 — Approach For Selecting Communications Channels In Communication Systems To Avoid Interference (Morton John Maclean)
- US20130010719A1 — Method for managing the spectrum of a multi-band wireless communication system (Nir Shapira)
- US20140301328A1 — Wireless Access Point Alternate Settings (Bob Daniel Yacovitch)
Classification
- H04W24/02primary — Arrangements for optimising operational condition
- H04W36/06 — Reselecting a communication resource in the serving access point
- H04W36/30 — Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302 — Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
Family
- US9549328B2 — B2 (2017)
- US20140307571A1 — A1 (2014)
Abstract
A method to optimize the communication on a channel between an access point and at least one client device, said channel being characterized by a center frequency and a bandwidth, comprises: establishing a connection on a first channel according to a first center frequency and a first bandwidth; exchanging data through this first channel between the access point and the client device; monitoring a first interference level on the first channel; the access point, while the data are exchanged, executes: informing the client device to switch to a second channel having a different center frequency and/or a different bandwidth; determining a second interference level on the second channel; comparing the first interference level with the second interference level; deciding to switch back or keep the second channel based on the comparison.
Also asserted by Arc Link LLC
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- US 8,200,592 — System and method for modeling multilabel classification and ranking (3 defendants)
- US 9,552,548 — Using classified text and deep learning algorithms to identify risk and provide early warning (3 defendants)
Named in one of these suits? A prior-art search is commissioned once and serves every defendant who shares it. The examiner's own search record is free on the tools page, and your first preliminary search is free — one claim, back within 24 hours — so you know whether there is art the Office never saw before anyone pays for more. Flat fees: $2,500$899 for the independent claims, $5,000$1,500 for every asserted claim.
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.