Yutaka Awata
Fujitsu
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Featured researches published by Yutaka Awata.
international conference on communications | 1989
Misao Fukuda; Shinji Ohta; K. Yamaguchi; Toshitaka Tsuda; T. Gotohda; Hirohisa Gambe; S. Miyoshi; Yutaka Awata
An approach to large scale integration (LSI) implementation of the 2B1Q echo canceler for an integrated services digital network (ISDN) basic access interface is described. A hybrid architecture, using both analog and digital processing, is adopted for LSI implementation with a moderate circuit scale. Techniques using baud-rate sampling, such as square root f automatic gain control (AGC) equalization by power detection, timing extraction by peak estimation and a two-stage echo canceler with divided tables, are introduced to the system. Performance characteristics are also confirmed by computer simulation and a prototype system.<<ETX>>
Archive | 1994
Mitsuo Kakuishi; Yutaka Awata; Nobukazu Koizumi
Archive | 1993
Mitsuo Kakuishi; Seiji Mikyoshi; Hiroaki Itokawa; Nobukazu Koizumi; Yutaka Awata; Yuko Kurosaki
Archive | 1991
Mitsuo Kakuishi; Yutaka Awata; Norio Ueno; Seiji Miyoshi; Norio Murakami; Atsushi Manabe
Archive | 1999
Kazutomo Hasegawa; Seiji Miyoshi; Yutaka Awata; Takashi Sasaki; Nobukazu Koizumi
Archive | 2005
Kazutomo Hasegawa; Hidetake Asahina; Seiji Miyoshi; Nobukazu Koizumi; Yutaka Awata
Archive | 1998
Kazutomo Hasegawa; Yutaka Awata; Seiji Miyoshi
Archive | 1995
Nobukazu Koizumi; Mitsuo Kakuishi; Yutaka Awata
Archive | 1996
Nobukazu Koizumi; Yutaka Awata
Archive | 1992
Yutaka Awata; Mitsuo Kakuishi; Nobukazu Koizumi