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Speech recognizing device and method, navigation device, portable telephone, and information processor

A sound recognition and recognition processing technology, applied in telephone communication, speech recognition, navigation, etc., can solve unsolvable problems

Inactive Publication Date: 2001-03-14
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0078] But as long as the direction of processing is different, the problems of the above-mentioned A* search or A* directional search cannot be solved

Method used

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  • Speech recognizing device and method, navigation device, portable telephone, and information processor
  • Speech recognizing device and method, navigation device, portable telephone, and information processor
  • Speech recognizing device and method, navigation device, portable telephone, and information processor

Examples

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no. 1 example

[0127] can be considered from w 1 ,w 2 ,w 3 Among them is the simple word sound recognition problem of identifying the word that corresponds to an input sound.

[0128] Here, each word is connected to the following acoustic model:

[0129] p 1 ,p 2 ,p 3 ,...,p 9

[0130] and given as follows

[0131] w 1 :p 1 ,p 2 ,p 4 ,p 7 ,p 9

[0132] w 2 :p 1 ,p 2 ,p 5 ,p 8 ,p 9

[0133] w 3 :p 1 ,p 3 ,p 6 ,p 8 ,p 9

[0134] In addition, each acoustic model pi is set to press image 3 The state transition model shown is modeled. Specifically, each acoustic model p 1 It is set to model as a state transition model composed of 3 states.

[0135] refer to Figure 10 The flow chart shown illustrates the speech recognition process of the first embodiment.

[0136] For this state transition model, we can separately construct Figure 11 network of acronyms shown and Figure 12 A network of suffix mergers is shown.

[0137] Furthermore, two state transition netw...

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Abstract

A speech recognizing device has an acoustic analyzing unit for analyzing a speech signal and a recognizing unit for speech recognition using an acoustic model and a language model. The recognizing unit is provided with a first scoring section for evaluating evaluation models in forward order while restricting models to be evaluated, a second scoring section for evaluating them in reverse order similarly, and a selecting section for selecting candidate words based on the results of evaluation by the first and second scoring sections. Thus, candidate words can be found out from the recognition of speech signal at high speed.

Description

technical field [0001] The present invention relates to a voice recognition device and method for automatically determining a word sequence corresponding to an input voice signal, specifically, a voice recognition device and method for obtaining a word sequence as a recognition result at a high speed, and a navigation device using the above-mentioned voice recognition, A mobile phone device and an information processing device. Background technique [0002] Conventionally, there has been provided a voice recognition technology for automatically specifying a word sequence corresponding to an input voice signal. [0003] This voice recognition technology is used to search databases or operate machines by voice, or input data to various information devices by voice. [0004] For example, a database retrieval device can be considered. When an inquiry about a place name is input by voice, it is recognized, the corresponding place name is selected according to the result, and inf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/36G10L15/26H04M1/27
CPCG10L15/26G01C21/36G10L15/265H04M1/271G10L15/183
Inventor 南野活树
Owner SONY CORP