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Keiko Shimada
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Tokyo, JP
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last 30 patents
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Patent Grant
Method and system for speech recognition without noise interference
Patent number
5,416,887
Issue date
May 16, 1995
NEC Corporation
Keiko Shimada
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Voice recognition dialing unit
Patent number
5,222,121
Issue date
Jun 22, 1993
NEC Corporation
Keiko Shimada
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Speech recognition method with noise reduction and a system therefor
Patent number
5,201,004
Issue date
Apr 6, 1993
NEC Corporation
Ryuhei Fujiwara
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Branched telephone system
Patent number
5,022,068
Issue date
Jun 4, 1991
NEC Corporation
Hisashi Fujisaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Loudspeaking telephone with a frequency shifting circuit
Patent number
4,955,055
Issue date
Sep 4, 1990
NEC Corporation
Hisashi Fujisaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Loudspeaking telephone with a variable gain circuit
Patent number
4,899,380
Issue date
Feb 6, 1990
NEC Corporation
Keiko Shimada
H04 - ELECTRIC COMMUNICATION TECHNIQUE