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GooglePatent applicationAudio & voiceInterest 4/10

Google patents audio broadcast system that adjusts signal strength based on listener feedback

This filing describes a method where a device broadcasting audio listens for status signals from receivers to check how well they are receiving the stream. It then automatically adjusts its transmission power to ensure the audio remains clear for all listeners. The system uses this real-time feedback to select the best power setting for the next audio packet.

Why it mattersThis could improve the reliability of wireless audio broadcasts, such as those used in public spaces or specialized headsets, by dynamically adapting to changing signal conditions.

In the filing’s own words

A user equipment (UE) broadcasts packets of an audio stream on isochronous channels based on a transmission power profile. Concurrently with broadcasting these packets, the UE listens for advertisement packets each indicating corresponding link quality data from a receiver device subscribed to the audio stream. Using the link quality data from the advertisement packets, the UE determines a respective link quality over a moving period of time between the UE and the receiver devices subscribed to the audio stream. The UE then selects an updated transmission power profile based on the determined link qualities.

What exactly they claim (claim 1)

1. A user equipment (UE), comprising broadcast circuitry configured to broadcast a first packet of an audio stream based on a transmission power profile; and tracking circuitry configured to: concurrently with the broadcast circuitry broadcasting the audio stream, receive a plurality of advertisement packets, each packet of the plurality of advertisement packets including link status data for a corresponding receiver device; determine respective link qualities between the UE and one or more receiver devices over a moving period of time based on link status data identified in the plurality of advertisement packets; and select a predetermined updated transmission power profile based on the link qualities between the UE and the one or more receiver devices, wherein the broadcast circuitry is configured to broadcast a second packet of the audio stream based on the selected predetermined updated transmission power profile.

Facts

Company
Google (GOOGLE LLC)
Official title
BROADCAST TRANSMISSION POWER MODIFICATION BASED ON ADVERTISEMENT PACKET FEEDBACK
Publication number
US20260282052A1
Application number
19080026
Filed
Mar 14, 2025
Published
Sep 17, 2026
Inventors
3
Claims
11

Classified under

H04W 72/30 Electricity & electronicsH04W 48/10 Electricity & electronicsH04W 72/0473 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.