Method, apparatus and recording medium for coding of separated tone and noise characteristic spectral components of an acoustic sibnal
US5717821A · kind A · utility
83Cited by
35References
62Claims
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Key dates
| Filing date | Mar 20, 1995 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Mar 20, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0264
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, and the apparatus for its implementation, for encoding an input signal includes the steps of transforming an input signal into frequency components, as for example by spectrum transform processing, separating the frequency components into a first signal consisting of tone characteristic components and a second signal consisting of other components, encoding the first signal, and encoding a signal based on the second signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.