Audio signal coding system and method using speech signal rotation prior to lattice vector quantization
US8924202B2 · kind B2 · utility
1Cited by
4References
16Claims
0Family size
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Key dates
| Filing date | Jun 30, 2008 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | May 2, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/032
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus configured to model an encoded signal to estimate at least one distribution of the signal, rotate the signal with respect to a lattice, for lattice quantization of the signal, dependent on the at least one distribution of the signal, and quantize the signal rotated with respect to the lattice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.