Title:
VOICE RECOGNITION
Document Type and Number:
WIPO Patent Application WO/1988/001090
Kind Code:
A1
Abstract:
Voice signals are picked up through a microphone (31) and voice sections are detected by a voice section detector (32). The voice signals are then processed with every predetermined time interval by a frequency analyzer (33) having a predetermined number of channels, and the voice signal portions corresponding to respective channels are quantized. The quantized data obtained from these channels are converted into binary data (34) to form frames each composed of a series of binary data. Each data of the frame corresponds to a channel and is preferably set to an integer number of times of the operation unit (e.g., 4 bits, 8 bits, etc.) of a computer. When a synthetic frame is to be formed by superposing two or more of such frames, the synthetic frame is divided into hierarchies so that each bit may be displayed by binary notation in each hierarchy. It is further possible to divide a frame into a plurality of subframes in order to effect preparatory comparison using the subframes.
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Inventors:
FUJIMOTO JUNICHIROH (JP)
YASUDA SEIGOU (JP)
NAKATANI TOMOFUMI (JP)
YASUDA SEIGOU (JP)
NAKATANI TOMOFUMI (JP)
Application Number:
PCT/JP1987/000569
Publication Date:
February 11, 1988
Filing Date:
July 30, 1987
Export Citation:
Assignee:
RICOH KK (JP)
International Classes:
G10L15/00; (IPC1-7): G10L3/00; G10L5/06; G10L7/08
Foreign References:
| JPS5412003B2 | 1979-05-19 | |||
| JPS6127599A | 1986-02-07 | |||
| JPS56168696A | 1981-12-24 | |||
| JPS60175098A | 1985-09-09 | |||
| JPS6172300A | 1986-04-14 | |||
| JPS58111989A | 1983-07-04 | |||
| JPS58115497A | 1983-07-09 | |||
| JPS60198598A | 1985-10-08 | |||
| JPS6199200A | 1986-05-17 |
Other References:
See also references of EP 0275327A4
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