Patent · US Active

Link margin improvements using a variable physical layer symbol rate

US12193089B2 · kind B2 · utility

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0References
19Claims
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Key dates

Filing dateNov 2, 2023
Grant dateJan 7, 2025
Priority date
Expiry dateNov 2, 2043

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04R2420/07
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

Various arrangements are presented for increasing a link margin of a wireless audio link. A short-range wireless communication link having a first physical layer (PHY) symbol rate is established between an audio source device and an audio output device. An audio stream is transmitted using the communication link, which includes a connected isochronous stream (CIS) link. A number of packet retransmissions are detected on the CIS. Based on the detected number of packet retransmissions on the CIS, the first PHY symbol rate of the CIS can be altered to a second PHY symbol rate for transmitting the audio stream.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.