Speech recognition method and system in which said method is implemented
US6138094A · kind A · utility
14Cited by
11References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 27, 1998 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Jan 27, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a speech recognition method and system a spoken word to be recognized is broken down into input vectors (K2a), ambient noise is evaluated (K1), a recognized word is chosen from a dictionary having associated reference vectors which are separated from the input vectors by a shortest distance (K3), and the recognized word is validated by a comparison of this distance with a threshold value which is derived as a function of the result of the evaluation of ambient noise. The ambient noise evaluation may be carried out at an instant when the speaker is silent, i.e. either before or after the speaker speaks the word to be recognized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.