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Featured researches published by Nobufumi Nakagaki.


international conference on consumer electronics | 1994

Wide aspect TV receiver with aspect detection and non-linear control for picture quality

Nobufumi Nakagaki; Yumi Bando; T. Mori; Shinobu Torikoshi; Sunao Suzuki; T. Nishiseto; Toshinori Murata

A signal processing system for wide aspect TV receivers is developed. The system can fit input images and subtitles to the wide screen fully automatically and can control picture quality in a non-linear way using fuzzy inference. >


IEEE Transactions on Consumer Electronics | 1988

A practical IDTV system improving picture quality for nonstandard TV signals

Toshiyuki Kurita; I. Arai; Nobufumi Nakagaki; Toshinori Murata; H. Sekiya; Sadao Kubota; H. Harada; Kazuhiro Kaizaki; Tadashi Kasezawa; N. Yamaguchi; M. Yao

A practical improved-definition TV (IDTV) system is described that performs video component signal processing, automatic non-NTSC signal discrimination, and adaptively choosing between burst-locked and highly stable line-locked clocking. The system design is presented along with sample images highlighting its performance. >


Archive | 1999

Apparatus for detecting position of featuring region of picture, such as subtitle or imageless part

Takayuki Mori; Nobufumi Nakagaki; Yumi Bando; Shinobu Torikoshi; Sunao Suzuki; Toshinori Murata


Archive | 1996

Television receiver including playback mode for storing screen image information for predetermined time to reproduce and its method

Nobufumi Nakagaki; Takeshi Minemoto; Takeshi Hoshino; Masahide Aoki; Atsushi Ishibashi


Archive | 1990

Clock pulse generator capable of being switched to process both standard and non-standard television signals

Hiroshi Sekiya; Toshiyuki Kurita; Nobufumi Nakagaki; Toshinori Murata


Archive | 1985

Signal converting method and circuit for television receiver

Nobufumi Nakagaki; Toshinori Murata; Toshiyuki Kurita


Archive | 1998

Method for selecting information signal and device therefor, image information display having the device, and remote controller

Maki Furui; Nobufumi Nakagaki; Masato Sugiyama; Kazuo Ishikura; Mitsuo Nakajima; Satoshi Hatakeyama; Katsunori Nakatani


Archive | 1996

DISPLAY METHOD OF COMMUNICATION NETWORK, AND METHOD AND DEVICE FOR OPERATING THE NETWORK

Masahide Aoki; Maki Furui; Atsushi Haratani; Takashi Hoshino; Nobufumi Nakagaki; 宣文 中垣; 淳 原谷; 真樹 古井; 剛史 星野; 正英 青木


Archive | 1993

Television receiver with control of writing and reading of video memory

Nobufumi Nakagaki; Toshiyuki Kurita; Toshinori Murata; Kazuhiro Kaizaki; Sadao Kubota; Masanori Kamiya; Hiroshi Sekiya; Kenichi Fujiwara


Archive | 1995

TELEVISION RECEIVER AND DISPLAY METHOD THEREFOR

Masahide Aoki; Takashi Hoshino; Atsushi Ishibashi; Takeru Minemoto; Nobufumi Nakagaki; 宣文 中垣; 長 峯元; 剛史 星野; 厚 石橋; 正英 青木

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