Speech recognition providing multiple outputs
US5388183A · kind A · utility
20Cited by
18References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1991 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Sep 30, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/083
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In the speech recognition system disclosed herein, the Viterbi decoding of an acoustic recognition network is augmented by implementing additional data structures for each arc in the network which represent, for each arc, the best path cost of reaching the last point on that arc and an arc in time which represents, for the best path, the time of leaving the previous arc. These additional data structures enable a trace back procedure which identifies not only the presumably optimal path but also alternate paths having good scores.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.