Takashi Koga
Toshiba
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Publication
Featured researches published by Takashi Koga.
IEEE Transactions on Consumer Electronics | 1992
Seiichi Tanaka; Masahiko Mawatari; Takashi Koga; Kouichi Kurihara; Tsutomu Mizusawa
A cost-effective motion-adaptive video processing system was developed for luma/chroma separation and frame recursive noise reduction, using only a 2-Mbit frame memory. The problem of aliasing due to subsampling and the problem of waveform deterioration due to band restriction were solved, and a method of chroma motion detection using interframe difference signals was developed. Therefore, the required frame memory capacity can be reduced without a performance compromise. The video processing part of this system was produced as a single-chip digital LSI and was installed in a home-use S-VHS format VCR. The result was improved picture quality for VCR recording and playback. >
international conference on consumer electronics | 1989
T. Yamamoto; I. Kamoshida; Takashi Koga; T. Sakai; Shigetaka Sawa
A new VHS FM audio-processing IC has been developed which contains a new peak-noise-reduction system. With the new circuitry, audio filters can be fully integrated without degrading the IC performance and the total dynamic range. In addition, the trimming points of the system are reduced from 6 to 2, which results in high cost-effectiveness. >
Archive | 1992
Seiichi Tanaka; Takashi Koga; Kouichi Kurihara
Archive | 1989
Akihiko Enomoto; Takashi Koga; Minoru Yoneda; Hiroshi Kobata
Archive | 1989
Minoru Yoneda; Akihiko Enomoto; Takashi Koga; Hiroshi Kobata
Archive | 1994
Takashi Koga; Seiichi Tanaka; 隆史 古賀; 誠一 田中
Archive | 1986
Takashi Koga
Archive | 1994
Ken Ito; Takashi Koga; 謙 伊藤; 隆史 古賀
Archive | 1989
Akihiko Enomoto; Takashi Koga; Minoru Yoneda; Hiroshi Kobata
Archive | 1991
Masahiko Mawatari; Takashi Koga; Seiichi Tanaka; Naoki Matsuda; Masatoshi Sumiyoshi
