Lossless audio coding/decoding apparatus and method
US7605722B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 11, 2008 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Apr 11, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/0017
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Provided are a lossless audio coding/decoding apparatus and method. The lossless audio coding apparatus includes a first coder to directly code first symbols; a second coder module comprising a plurality of second coders to convert the first symbols into second symbols and to code the second symbols; a first selector to compare the performance of the first coder to the performance of the second coders and to output a coding mode in accordance with a comparison result; and a second selector to output a final bitstream by coding the first symbols in correspondence with the coding mode. According to the present invention, the performance of audio coding may be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.