Apparatus for the linear predictive coding of human speech
US4401855A · kind A · utility
28Cited by
4References
5Claims
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Key dates
| Filing date | Nov 28, 1980 |
| Grant date | Aug 30, 1983 |
| Priority date | — |
| Expiry date | Nov 28, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Improved apparatus for the linear predictive coding of human speech in which the speech is sampled through the use of analog filters and the linear predictive coding computations are performed with respect to such samples using digital techniques. The filters are MOS switched capacitor filters which can be implemented on a silicon chip together with the digital circuitry. Specific circuits for implementing two different linear predictive coding speech analysis techniques are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.