Lossy coding of signals
US8533571B2 · kind B2 · utility
0Cited by
2References
31Claims
0Family size
Inventors
Key dates
| Filing date | Sep 11, 2009 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Mar 3, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method is described for packing variable-length entropy coded data into a fixed rate data stream along with resolution enhancement data, the method providing tightly constrained propagation of transmission channel errors and graceful degradation of signal resolution as entropy-coded data rate increases. An application to a multiband ADPCM audio codec is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.