Adaptive linear predictive coding/decoding
US9620139B2 · kind B2 · utility
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5References
18Claims
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Key dates
| Filing date | Jun 17, 2011 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Apr 24, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of coding/decoding of a digital audio signal comprising a succession of consecutive blocks of data, on the basis of a predictive filter. A modified predictive filter is used for the coding of at least one current block, the modified filter being constructed by the combination of: a rear filter calculated for a past block, preceding the current block, and enrichment parameters for the rear filter, which are determined as a function of the signal in the current block and comprising the coefficients of a modifying filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.