Speech coding with improved background noise reproduction
US6275798A · kind A · utility
9Cited by
8References
31Claims
0Family size
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Key dates
| Filing date | Sep 16, 1998 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Sep 16, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/083
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In producing an approximation of an original speech signal from encoded information about the original speech signal, current parameters associated with a current segment of the original speech signal are determined from the encoded information. Reproduction of a noise component of the original speech signal is improved by using at least one of the current parameters and corresponding previous parameters respectively associated with previous segments of the original speech signal to produce a modified parameter. The modified parameter is then used to produce an approximation of the current segment of the original speech signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.