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Featured researches published by Nobuo Asano.


international conference on acoustics, speech, and signal processing | 1995

An equalizing and channel coding processor for GSM terminals

Toshihiro Ishikawa; S. Marui; Masayuki Yamasaki; Katsuhiko Ueda; Nobuo Asano; Mitsuru Uesugi; Yoshiko Saitoh; Yukihiro Fujimoto; Susumu Furushima

A new DSP architecture for equalizing, channel coding/decoding and encryption/decryption required by GSM hand portable terminals is presented. In the DSP, called EQCHAN (equalizer and channel coding/decoding processor), these tasks are managed in common units, that is, the data processing unit (DPU) and the bit manipulation unit (BMU). The LSI that contains EQCHAN was designed using 0.8 /spl mu/m CMOS technology and its die size is 123 mm/sup 2/. The power consumed in the LSI is 60 mW at 3.6 V under a continuous communication mode and this value is sufficient for a portable terminal. We describe the detail architecture of EQCHAN.


Archive | 1993

Arithmetic apparatus for carrying out viterbi decoding at a high speed

Nobuo Asano; Mitsuru Uesugi; Toshihiro Ishikawa


Archive | 1994

Mobile communication apparatus having multi-codes allocating function

Osamu Kato; Nobuo Asano


Archive | 1998

Receiving portion of radio communication device

Nobuo Asano


Archive | 1994

Variable rate communication method and a variable rate communication system

Nobuo Asano; Osamu Kato


Archive | 1994

Automobile on-board and/or portable telephone system

Nobuo Asano; Osama Kato


Archive | 1994

Radio communication apparatus which includes a base station and terminals that save power as they monitor for incoming calls from the base station

Nobuo Asano; Osamu Kato


Archive | 1995

Code division multiple access communication system

Takayuki Nakano; Osamu Apt Hiyoshi Nichimo Dai Coporasu Kato; Nobuo Asano


Archive | 1998

Mobile radio system with control over radio wave output if a malfunction is detected

Nobuo Asano; Izumi Horikawa


Archive | 1995

Automobile-portable telephone system

Nobuo Asano; Osamu Kato

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