Title:
【発明の名称】音素推定を用いた音声認識回路
Document Type and Number:
Japanese Patent JP3114975
Kind Code:
B2
Abstract:
A phoneme estimator (12) in a speech-recognition system (10) includes trigger circuitry (18, 22) for identifying the segments of speech that should be analyzed for phoneme content. Speech-element processors (24, 26, and 28) calculate the likelihoods that currently received speech contains individual phonemes, but they operate only when the trigger circuitry identifies such segments. The computation-intensive processing for determining phoneme likelihoods is thus performed on only a small subset of the received speech segments. The accuracy of the speech-element processors (24, 26, and 28) is enhanced because these processors operate by recognition of patterns not only in elements of the data-reduced representations of the received speech but also in higher-ordered products of those elements; that is, these circuits employ non-linear modeling for phoneme identification.
Inventors:
John Peeker
Robert El Powers
Robert El Powers
Application Number:
JP8707588A
Publication Date:
December 04, 2000
Filing Date:
April 08, 1988
Export Citation:
Assignee:
Eliza Corporation
International Classes:
G10L15/00; G10L15/02; G10L15/10; G10L11/00; G10L15/20; G10L21/02; (IPC1-7): G10L11/00; G10L15/02; G10L21/02
Other References:
【文献】米国特許5027408(US,A)
【文献】欧州特許286035(EP,B1)
【文献】欧州特許286035(EP,B1)
Attorney, Agent or Firm:
Minoru Nakamura (4 outside)
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