Voice recognition method and apparatus by updating reference patterns
US4908864A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1987 |
| Grant date | Mar 13, 1990 |
| Priority date | — |
| Expiry date | Apr 2, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/063
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Inputted voice signals are analyzed in units of syllables. Each syllable is compared with standard syllables preregistered in a memory and thereby recognized but corrections may be made on erroneous recognitions by referencing a dictionary or entering a command. Each standard pattern is associated with phonological information on the neighborhood in a voice signal from where it was extracted and may be updated by another pattern having the same phonological information. Temporal sequences of correct and erroneous recognitions of individual syllables as well as whole syllables are stored and referenced in determining whether a standard pattern should be updated. A maximum pattern number may be set for each syllable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.