Method for transmitting and/or receiving audio data of a plurality of audio sources through a single SPDIF link, and related apparatus
US7702005B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2006 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Jan 10, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/4904
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for transmitting audio data of a plurality of audio sources through a single SPDIF link, includes: sequencing and multiplexing the audio data of the plurality of audio sources to pack the audio data of the plurality of audio sources into a plurality of frames of a block; performing bi-phase mark encoding on the audio data in the frames; appending preambles Z, X, and Y of the AES3/SPDIF stream format to the frames according to the number of audio sources in a first mode, or appending preambles Z, X, and Y of the AES3/SPDIF stream format and a specific preamble differing from preambles Z, X, and Y to the frames according to the number of audio sources in a second mode; and outputting the frames carrying the audio data into the SPDIF link with a frame rate greater than an audio sampling frequency of one of the audio sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.