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Koichi Hirayama

Panasonic

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Publication

Featured researches published by Koichi Hirayama.

Archive | 1997

Device authentication system which allows the authentication function to be changed

Makoto Tatebayashi; Natsume Matsuzaki; Yoshihisa Fukushima; Koichi Hirayama; Atsushi Ishihara

Archive | 1997

Encrypted communication system that limits the damage caused when a secret key has been leaked

Naoki Shibaura chome Endoh; Yoshihisa Fukushima; Koichi Hirayama; Takehisa Kato; Makoto Tatebayashi

Archive | 1997

Secret key transfer method which is highly secure and can restrict the damage caused when the secret key is leaked or decoded

Makoto Tatebayashi; Motoji Ohmori; Takehisa Kato; Naoki Shibaura chome Endoh; Koichi Hirayama

Archive | 1996

A DIGITAL MODULATION APPARATUS, A DIGITAL MODULATION METHOD, AND A RECORDING MEDIUM THEREFOR

Shinichi Tanaka; Toshiyuki Shimada; Tadashi Kojima; Koichi Hirayama; Yoshiaki Corp Res And Devel Labor Moriyama; Fumihiko Corp Res And Devel Labor Yokogawa; Takao Arai; Toshifumi Takeuchi

Archive | 1999

Data transmission system, data recording and reproducing apparatus and recording medium each having data structure of error correcting code

Shinichi Tanaka; Masatoshi Shimbo; Shinya Yamada; Tadashi Kojima; Koichi Hirayama

Archive | 1996

Recording medium, recording method and apparatus, and reproduction method and apparatus

Shinichi Tanaka; Toshiyuki Shimada; Tadashi Kojima; Koichi Hirayama

Archive | 1996

Digital data transmitting method

Tadashi Kojima; Koichi Hirayama; Hisashi Yamada; Yoshiaki Moriyama; Fumihiko Corp Res And Dev Lab Yokogawa; Takao Arai; Toshifumi Takeuchi; Shinichi Tanaka; Akira Kurahashi; Toshiyuki Shimada

Archive | 1996

Single merging bit DC-suppressed run length limited coding

Shinichi Tanaka; Toshiyuki Shimada; Koichi Hirayama; Hisashi Yamada

Archive | 1996

Recording medium, data transmission method and apparatus, and data reproduction method and apparatus

Shinichi Tanaka; Toshiyuki Shimada; Tadashi Kojima; Koichi Hirayama

Archive | 1997

One-way data conversion apparatus and device authentication system

Makoto Tatebayashi; Natsume Matsuzaki; Koichi Hirayama

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Collaboration

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Shinichi Tanaka

Panasonic

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Tadashi Kojima

Panasonic

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Toshiyuki Shimada

Panasonic

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Makoto Tatebayashi

Panasonic

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Natsume Matsuzaki

Panasonic

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Yoshihisa Fukushima

Panasonic

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Hisashi Yamada

Panasonic

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Naoki Shibaura chome Endoh

Panasonic

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Takao Arai

Panasonic

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Takehisa Kato

Panasonic

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