Juro Ohga

Person

Kamakura, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Active noise control apparatus
- Patent number 6,683,960
- Issue date Jan 27, 2004
- Fujitsu Limited
- Kensaku Fujii
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Voice switch used in hands-free communications system
- Patent number 5,940,499
- Issue date Aug 17, 1999
- Fujitsu Limited
- Kensaku Fujii
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for estimating filter coefficients
- Patent number 5,790,440
- Issue date Aug 4, 1998
- Fujitsu Limited
- Kensaku Fujii
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Filter coefficient estimation apparatus
- Patent number 5,638,311
- Issue date Jun 10, 1997
- Fujitsu Limited
- Kensaku Fujii
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Method and apparatus of determining the sound transfer characterist...
- Patent number 5,602,926
- Issue date Feb 11, 1997
- Fujitsu Limited
- Tadashi Ohashi
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Signal suppressing apparatus
- Patent number 5,544,201
- Issue date Aug 6, 1996
- Fujitsu Limited
- Tsutomu Hoshino
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Speaking apparatus having handfree conversation function
- Patent number 5,479,502
- Issue date Dec 26, 1995
- Fujitsu Limited
- Juro Ohga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hands-free telephone set
- Patent number 5,384,843
- Issue date Jan 24, 1995
- Fujitsu Limited
- Hiroyuki Masuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Echo path transition detection
- Patent number 5,237,562
- Issue date Aug 17, 1993
- Fujitsu Limited
- Kensaku Fujii
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Adaptive digital filter including low-pass filter
- Patent number 5,146,470
- Issue date Sep 8, 1992
- Fujitsu Limited
- Kensaku Fujii
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic telephone terminal having noise suppression function
- Patent number 4,908,855
- Issue date Mar 13, 1990
- Fujitsu Limited
- Juro Ohga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Inverse control system
- Patent number 4,683,590
- Issue date Jul 28, 1987
- Nippon Telegraph and Telphone Corporation
- Masato Miyoshi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Microphone-array apparatus and method for extracting desired signal
- Patent number 4,536,887
- Issue date Aug 20, 1985
- Nippon Telegraph & Telephone Public Corporation
- Yutaka Kaneda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Method of updating reflection coefficients of lattice filter and ap...
- Publication number 20010021940
- Publication date Sep 13, 2001
- FUJITSU LIMITED
- Kensaku Fujii
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Noise suppression apparatus realized by linear prediction analyzing...
- Publication number 20010005822
- Publication date Jun 28, 2001
- FUJITSU LIMITED
- Kensaku Fujii
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Person

Patents Grantslast 30 patents

Active noise control apparatus

Voice switch used in hands-free communications system

Apparatus for estimating filter coefficients

Filter coefficient estimation apparatus

Method and apparatus of determining the sound transfer characterist...

Signal suppressing apparatus

Speaking apparatus having handfree conversation function

Hands-free telephone set

Echo path transition detection

Adaptive digital filter including low-pass filter

Electronic telephone terminal having noise suppression function

Inverse control system

Microphone-array apparatus and method for extracting desired signal

Patents Applicationslast 30 patents

Method of updating reflection coefficients of lattice filter and ap...

Noise suppression apparatus realized by linear prediction analyzing...