Takehiko Yoshino
Hitachi
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Featured researches published by Takehiko Yoshino.
global communications conference | 1988
Naoki Kawai; Kouzou Kameda; Takehiko Yoshino
A system of high-quality, multichannel sound broadcasting by PCM (pulse code modulation) is described. In this system, 12-16 PCM-coded high-quality stereo audio signals are multiplexed by time division. This multiplexed signal digitally modulates a carrier which is sent to a broadcast satellite. Then, using one satellite broadcast channel in the 12 GHz band, the signal is broadcast throughput the country. For the preservation of sound quality, a BCH-DEC-TED (63, 50) error-correction code and an error-correction system which uses range transmission have been adopted. The improvement due to the use of range transmission was uniform over a wide range of received C/N (carrier/noise) ratios. The characteristics of the system have been tested by experiments using the broadcast satellite BS-2. It has been confirmed that no degradation of sound quality can be ensured when the receiving C/N ratio is above 8 dB.<<ETX>>
Archive | 1973
Akio Yanagimachi; Takashi Uehara; Tetsuo Yamamoto; Hisakichi Yamane; Eiichi Sawabe; Takehiko Yoshino; Teruhiro Takezawa; Michio Masuda; Hiroaki Nabeyama; Masaaki Fukuda; Tatsuo Kayano
Archive | 1974
Takehiko Yoshino; Katsuo Mohri
Archive | 1973
Akio Yanagimachi; Hisakichi Yamane; Eiichi Sawabe; Takashi Uehara; Takehiko Yoshino; Teruhiro Takezawa; Michio Masuda; Hiroaki Nabeyama; Masaaki Fukuda; Tatsuo Kayano
Archive | 1974
Masaaki Fukuda; Tatsuo Kayano; Takashi Uehara; Takehiko Yoshino; Eiichi Sawabe; Hisakichi Yamane; Akio Yanagimachi; Teruhiro Takezawa; Michio Masuda; Hiroaki Nabeyama
Archive | 1974
Katsuo Mohri; Yoshizumi Watatani; Hiroaki Nabeyama; Takehiko Yoshino
Archive | 1973
Masaaki Fukuda; Tatsuo Kayano; Michio Masuda; Hiroaki Nabeyama; Eiichi Sawabe; Teruhiro Takezawa; Takashi Uehara; Hisakichi Yamane; Akio Yanagimachi; Takehiko Yoshino
Archive | 1973
Akio Yanagimachi; Osamu Yamada; Hisakichi Yamane; Eiichi Sawabe; Takashi Uehara; Takehiko Yoshino; Teruhiro Takezawa; Michio Masuda; Hiroaki Nabeyama; Masaaki Fukuda; Tatsuo Kayano
Archive | 1974
Yoshizumi Watatani; Katsuo Mohri; Hiroaki Nabeyama; Masaaki Fukuda; Tatsuo Kayano; Takehiko Yoshino; Eiichi Sawabe; Takashi Uehara
The Journal of The Institute of Image Information and Television Engineers | 1983
Takehiko Yoshino; Katsuro Ohmi; Takaaki Tsuji; Naoki Kawai
