Method of speech recognition
US5345536A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1991 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | Dec 17, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A set of "m" feature parameters is generated every frame from reference speech which is spoken by at least one speaker and which represents recognition-object words, where "m" denotes a preset integer. A set of "n" types of standard patterns is previously generated on the basis of speech data of a plurality of speakers, where "n" denotes a preset integer. Matching between the feature parameters of the reference speech and each of the standard patterns is executed to generate a vector of "n" reference similarities between the feature parameters of the reference speech and each of the standard patterns every frame. The reference similarity vectors of respective frames are arranged into temporal sequences corresponding to the recognition-object words respectively. The reference similarity vector sequences are previously registered as dictionary similarity vector sequences. Input speech to be recognized is analyzed to generate "m" feature parameters from the input speech. Matching between the feature parameters of the input speech and the standard patterns is executed to generate a vector of "n" input-speech similarities between the feature parameters of the input speech and the standa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.