Masahiko Mawatari
Toshiba
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Publication
Featured researches published by Masahiko Mawatari.
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. >
IEEE Transactions on Consumer Electronics | 1989
H. Takeuchi; Masahiko Mawatari; M. Tamura; T. Shirokane
A recently developed digital signal processing system for home VCR video circuitry is described. A video circuit for a VHS-format VCR has been digitized, and 12 new types of gate arrays have been developed. The video, color, and FM signal processing with the new circuitry is discussed. An experimental VCR has been constructed using them, and its recording/playback functions have been confirmed. >
Archive | 2009
Masahiko Mawatari; Yutaka Kawada
Archive | 2010
Takanobu Mukaide; Masahiko Mawatari
Archive | 1992
Seiichi Tanaka; Masahiko Mawatari
Archive | 1989
Tatsuyuki Ohno; Masahiko Mawatari
Archive | 2009
Takashi Doi; Hideki Ohkita; Masahiko Mawatari
Archive | 2003
Masahiko Mawatari; Yutaka Kawada
Archive | 2009
Nobuaki Kabuto; Takashi Doi; Hideki Ohkita; Masahiko Mawatari
Archive | 2004
Koji Kanazawa; Masahiko Mawatari
