Multi-pulse excited linear predictive speech coder
US4736428A · kind A · utility
18Cited by
3References
8Claims
0Family size
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Key dates
| Filing date | Aug 9, 1984 |
| Grant date | Apr 5, 1988 |
| Priority date | — |
| Expiry date | Aug 9, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A multipulse excitation signal, as a better approximation than a single-pulse excitation signal, searches for a kth pulse which minimizes either a difference between a synthesized and a reference signal, or a distance between a multipulse excitation signal and a residual signal. The search uses an averaging function M.sub.k (n) of a weighted error signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.