Context free grammar engine for speech recognition system
US7206742B2 · kind B2 · utility
5Cited by
31References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2005 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Dec 7, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention includes a context-free grammar (CFG) engine which communicates through an exposed interface with a speech recognition engine. The context-free grammar engine, in one illustrative embodiment, handles loading and unloading of grammars, as well as maintaining a desired activation state of the grammars which are loaded. Further, the CFG engine represents all loaded grammars, and their corresponding activation states, as a single grammar to the speech recognition engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.