Mutsumi Ohta

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Error diffusion processing circuit for an image signal which improv...
- Patent number 7,339,706
- Issue date Mar 4, 2008
- Pioneer Corporation
- Mutsumi Ohta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Broadcast verification system, broadcast verification method, broad...
- Patent number 6,880,082
- Issue date Apr 12, 2005
- NEC Corporation
- Mutsumi Ohta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital watermark insertion system and digital watermark characteri...
- Patent number 6,470,090
- Issue date Oct 22, 2002
- NEC Corporation
- Ryoma Oami
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital watermark insertion system and digital watermark characteri...
- Patent number 6,415,041
- Issue date Jul 2, 2002
- NEC Corporation
- Ryoma Oami
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Lossless transform coding system for digital signals
- Patent number 6,175,661
- Issue date Jan 16, 2001
- NEC Corporation
- Ryoma Oami
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Lossless transform coding system for digital signals
- Patent number 5,999,957
- Issue date Dec 7, 1999
- NEC Corporation
- Mutsumi Ohta
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Lossless transform coding system for digital signals
- Patent number 5,790,441
- Issue date Aug 4, 1998
- NEC Corporation
- Ryoma Oami
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System and method for motion compensation on sub-band represented s...
- Patent number 5,719,627
- Issue date Feb 17, 1998
- NEC Corporation
- Mutsumi Ohta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Lossless transform coding system for digital signals
- Patent number 5,703,799
- Issue date Dec 30, 1997
- NEC Corporation
- Mutsumi Ohta
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Motion compensation circuit
- Patent number 5,469,517
- Issue date Nov 21, 1995
- NEC Corporation
- Mutsumi Ohta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device for subband coding with samples scanned across frequency bands
- Patent number 5,396,237
- Issue date Mar 7, 1995
- NEC Corporation
- Mutsumi Ohta
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Predictive coding device capable of coding image data signals witho...
- Patent number 5,355,378
- Issue date Oct 11, 1994
- NEC Corporation
- Mutsumi Ohta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Decoding device capable of forwardly and backwardly reproducing pic...
- Patent number 4,987,490
- Issue date Jan 22, 1991
- NEC Corporation
- Mutsumi Ohta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reproduction system capable of reproducing a still image by interru...
- Patent number 4,985,782
- Issue date Jan 15, 1991
- NEC Corp.
- Toshio Koga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image processing system operable in cooperation with a recording me...
- Patent number 4,969,039
- Issue date Nov 6, 1990
- NEC Corporation
- Toshio Koga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of coding a digital video signal for reverse reproduction of...
- Patent number 4,942,465
- Issue date Jul 17, 1990
- NEC Corporation
- Mutsumi Ohta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Recording system for recording on a ROM image signal information wh...
- Patent number 4,942,476
- Issue date Jul 17, 1990
- NEC Corporation
- Toshio Koga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image processing system for recording or reproducing an image signa...
- Patent number 4,931,879
- Issue date Jun 5, 1990
- NEC Corp.
- Toshio Koga
- G11 - INFORMATION STORAGE
Information Patent Grant
Encoding system capable of accomplishing a high efficiency by anter...
- Patent number 4,908,862
- Issue date Mar 13, 1990
- Kokusai Denshin Denwa Co., Ltd.
- Masahide Kaneko
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Moving image signal coding system
- Patent number 4,837,618
- Issue date Jun 6, 1989
- Kokusai Denshin Denwa Co., Ltd.
- Yoshinori Hatori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encoder capable of faithfully and adaptively encoding a moving image
- Patent number 4,734,767
- Issue date Mar 29, 1988
- Kokusai Denshin Denwa Co., Ltd.
- Masahide Kaneko
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Error diffusion processing circuit for an image signal which improv...
- Publication number 20030218778
- Publication date Nov 27, 2003
- NEC PLASMA DISPLAY CORPORATION
- Mutsumi Ohta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital watermark insertion system and digital watermark characteri...
- Publication number 20020097892
- Publication date Jul 25, 2002
- NEC Corporation
- Ryoma Oami
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Broadcast verification system, broadcast verification method, broad...
- Publication number 20020044659
- Publication date Apr 18, 2002
- NEC Corporation
- Mutsumi Ohta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Mutsumi Ohta

Person

Patents Grantslast 30 patents

Error diffusion processing circuit for an image signal which improv...

Broadcast verification system, broadcast verification method, broad...

Digital watermark insertion system and digital watermark characteri...

Digital watermark insertion system and digital watermark characteri...

Lossless transform coding system for digital signals

Lossless transform coding system for digital signals

Lossless transform coding system for digital signals

System and method for motion compensation on sub-band represented s...

Lossless transform coding system for digital signals

Motion compensation circuit

Device for subband coding with samples scanned across frequency bands

Predictive coding device capable of coding image data signals witho...

Decoding device capable of forwardly and backwardly reproducing pic...

Reproduction system capable of reproducing a still image by interru...

Image processing system operable in cooperation with a recording me...

Method of coding a digital video signal for reverse reproduction of...

Recording system for recording on a ROM image signal information wh...

Image processing system for recording or reproducing an image signa...

Encoding system capable of accomplishing a high efficiency by anter...

Moving image signal coding system

Encoder capable of faithfully and adaptively encoding a moving image

Patents Applicationslast 30 patents

Error diffusion processing circuit for an image signal which improv...

Digital watermark insertion system and digital watermark characteri...

Broadcast verification system, broadcast verification method, broad...