Method and device for the hierarchical coding of a source audio signal and corresponding decoding method and device, programs and signals
US8321230B2 · kind B2 · utility
6Cited by
2References
15Claims
0Family size
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Key dates
| Filing date | Feb 5, 2007 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Dec 29, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Hierarchical coding of a source audio signal in the form of a data stream including a base level and at least two hierarchical enhancement levels, each of the levels being organized in successive frames. At least one frame of at least one enhancement level has a duration less than the duration of at least one frame of the base level. At least one indication representative of an order used for a set of enhancement level frames corresponding to the duration of at least one frame of the base level is inserted into the data stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.