Method and recognizer for recognizing tonal acoustic sound signals
US5806031A · kind A · utility
14Cited by
2References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 25, 1996 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Apr 25, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/15
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A tonal sound recognizer determines tones in a tonal language without the use of voicing recognizers or peak picking rules. The tonal sound recognizer computes feature vectors for a number of segments of a sampled tonal sound signal in a feature vector computing device, compares the feature vectors of a first of the segments with the feature vectors of another segment in a cross-correlator to determine a trend of a movement of a tone of the sampled tonal sound signal, and uses the trend as an input to a word recognizer to determine a word or part of a word of the sampled tonal sound signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.