Katsuhiro Nakamura

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Multilevel quadrature amplitude modulator capable of reducing a max...
- Patent number 5,107,504
- Issue date Apr 21, 1992
- NEC Corporation
- Katsuhiro Nakamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data encryptor
- Patent number 4,760,599
- Issue date Jul 26, 1988
- NEC Corporation
- Eiji Okamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cryptographic system
- Patent number 4,663,500
- Issue date May 5, 1987
- NEC Corporation
- Eiji Okamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Enciphering key distribution system for subscription TV broadcast o...
- Patent number 4,658,292
- Issue date Apr 14, 1987
- NEC Corporation
- Eiji Okamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Synchronization circuit for a Viterbi decoder
- Patent number 4,578,800
- Issue date Mar 25, 1986
- Yutaka Yasuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Error-correction system for two-dimensional multilevel signals
- Patent number 4,553,237
- Issue date Nov 12, 1985
- NEC Corporation
- Katsuhiro Nakamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Synchronization circuit for a Viterbi decoder
- Patent number 4,527,279
- Issue date Jul 2, 1985
- Kokusai Denshin Denwa Co.
- Yutaka Yasuda
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Device for encrypting each input data bit by at least one keying bi...
- Patent number 4,447,672
- Issue date May 8, 1984
- Nippon Electric Co., Ltd.
- Katsuhiro Nakamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Error correction system for differential phase-shift-keying
- Patent number 4,211,996
- Issue date Jul 8, 1980
- Nippon Electric Co., Ltd.
- Katsuhiro Nakamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Parallel-processing error correction system
- Patent number 4,105,999
- Issue date Aug 8, 1978
- Nippon Electric Co., Ltd.
- Katsuhiro Nakamura
- H03 - BASIC ELECTRONIC CIRCUITRY

Katsuhiro Nakamura

Person

Patents Grantslast 30 patents

Multilevel quadrature amplitude modulator capable of reducing a max...

Data encryptor

Cryptographic system

Enciphering key distribution system for subscription TV broadcast o...

Synchronization circuit for a Viterbi decoder

Error-correction system for two-dimensional multilevel signals

Synchronization circuit for a Viterbi decoder

Device for encrypting each input data bit by at least one keying bi...

Error correction system for differential phase-shift-keying

Parallel-processing error correction system