Wireless streaming of an audio signal to multiple audio receiver devices
US9838829B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 2012 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Dec 3, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of streaming an audio signal from an audio transmission device to first and second audio receiver devices via a Bluetooth link using a protocol that requires an audio data packet to be retransmitted if a positive packet receipt is not received. The first audio receiver device is synchronized to the audio transmission device to enable the first audio receiver device to receive an audio signal stream from the audio transmission device, the second audio receiver device is synchronized to the audio transmission device to enable the second audio receiver device to eavesdrop the audio signal stream to the first audio receiver device. When a positive packet receipt acknowledgement is not transmitted from the first audio receiver device to the audio transmission device, the audio transmission device repeats transmission of that audio data packet irrespective of whether the packet has been correctly received by the first audio receiver device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.