Speaker-dependent connected speech word recognizer
US4831551A · kind A · utility
175Cited by
4References
4Claims
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Key dates
| Filing date | Oct 13, 1987 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Oct 13, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Speech recognition is improved using reference pattern templates which have an added noise signal (noise floor) to avoid LPC high-gain synthesizer instability at low signal levels. Also, input signal frames have a length one-half that of reference frames whereby dynamic time warp computation steps are cut almost in half.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.