Method and apparatus to update parameter of error frame
US7962835B2 · kind B2 · utility
8Cited by
8References
13Claims
0Family size
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Key dates
| Filing date | Sep 20, 2007 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | May 4, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/005
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a method and apparatus to conceal an error in an audio signal, when the current frame has no error and a past frame input prior to the current frame has an error, a parameter for the past frame is generated using a parameter for the current frame and a parameter of a frame out of frames input prior to the past frame and a previously stored parameter is updated with the generated parameter, thereby concealing an error of an audio signal without additional delay and preventing degradation in sound quality in a frame that is input after a frame having an error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.