Speech recognition using discriminant features
US7337114B2 · kind B2 · utility
2Cited by
8References
17Claims
0Family size
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Key dates
| Filing date | Mar 29, 2001 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Dec 5, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and arrangements for representing the speech waveform in terms of a set of abstract, linguistic distinctions in order to derive a set of discriminative features for use in a speech recognizer. By combining the distinctive feature representation with an original waveform representation, it is possible to achieve a reduction in word error rate of 33% on an automatic speech recognition task.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.