System for continuous speech recognition through transition networks
US4888823A · kind A · utility
17Cited by
9References
12Claims
0Family size
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Key dates
| Filing date | Sep 28, 1987 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Sep 28, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2015/025
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Phoneme feature parameters are extracted from input digital speech signals by means of LPC analysis. Phonetic segments having phonetical meanings are obtained together with similarities to prescribed basic phonetic segments from the feature parameters to be passed through nodes of transition networks provided for each word. In passing the nodes, scores for similarity Sj of predetermined segments of the corresponding phonetic segments are made in selective scoring and the accumulation of the scores is used for recognition of continuous word speech.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.