US 10966025

Here's a concise summary of US patent 10966025:

US Patent 10966025: Playback device pairing

• Title: Playback device pairing
• Assignee: Sonos Inc.
• Inventors: Christopher Kallai, Michael Darrell Andrew Ericson, Robert A. Lambourne, Robert Reimann, Mark Triplett
• Filing Date: October 31, 2019
• Issue Date: March 30, 2021
• Abstract: The patent describes technology for grouping, consolidating, and pairing individual network-capable playback devices (players) to create or enhance a multi-channel listening environment. An example method involves receiving an audio signal with a range of frequencies, amplifying it with a gain, and then automatically increasing that gain if only a subset of the audio frequencies will be reproduced by the speaker. The method further involves amplifying the audio signal containing no more than the subset of frequencies with the higher gain.
• Legal Status: Active [cite: Google Patents]
• Anticipated Expiration: September 11, 2027 [cite: Google Patents]

Plain-Language Overview of Independent Claims:

• Independent Claim 1 (Apparatus): This claim describes a playback device that can receive audio over a network, has multiple speakers powered by an amplifier, and a processor. The processor processes the audio for the speakers and is configured to apply different sound adjustments (equalization) to the speaker output based on whether the device is in a first type of pairing or a second type of pairing.
• Independent Claim 11 (Method): This claim outlines a process where audio data is received over a network and then processed for output through multiple speakers. The core of the method involves applying a first sound adjustment (equalization) to the speaker output according to a first type of pairing, or a second, different sound adjustment according to a second type of pairing.
• Independent Claim 19 (Apparatus): This claim describes a playback device that includes a network interface, speaker drivers, an amplifier, and a processor. The processor enables the device to operate in a "non-paired" mode, where the speakers output a full set of audio channels, or a "paired" mode, where the speakers output only a subset of those channels. Crucially, the processor applies a first amplification level (gain) in the non-paired mode and a different, second amplification level when in the paired mode.

CAFC 2026 Dockets:

A search of CAFC 2026 dockets did not directly yield any active litigation specifically referencing US Patent 10966025 as of April 26, 2026. However, the Google Patents entry for US10966025B2 indicates that a PTAB (Patent Trial and Appeal Board) case, IPR2026-00131, was filed and is currently pending. [cite: Google Patents] While PTAB decisions can be appealed to the Federal Circuit, this specific PTAB case itself is not a direct CAFC docket entry at this stage.