Speech recognition system, method and program that generates a recognition result in parallel with a distance value
US7930180B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2006 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Sep 8, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/34
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Speech recognition is performed at high speed by processing respective paths of multi-path speech recognition in parallel. A distance calculation unit receives temporal data sequence of acoustic features, calculates the distance values between all acoustic models and the speech features in the respective frames, and writes them in a distance value buffer. An acoustic lookahead unit receives distance values from a plurality of distance value buffers, calculates lookahead values which are relative priorities of respective recognition units, and writes them into the lookahead value buffer. A word string matching unit receives information from a plurality of distance value buffers and the lookahead value buffers, and recognizes the entire utterance in frame synchronization by adequately selecting matching words using the lookahead values to thereby generate a recognition result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.