Pattern recognition system
US4905287A · kind A · utility
32Cited by
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6Claims
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Key dates
| Filing date | Mar 16, 1988 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Mar 16, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F18/24155
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Multiple similarities between phoneme feature data extracted from a word input signal and reference pattern data read out from a reference pattern memory are calculated by a similarity calculation section. The multiple similarities are converted by a conversion filter into posterior probabilities using parameter sets which are read out from a filter parameter bank in accordance with the obtained multiple similarities. The posterior probabilities are subjected to matching with data stored in word dictionary by a word matching section, thus discriminating the input word.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.