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Dive into the research topics where Tadahiro Oku is active.

Publication


Featured researches published by Tadahiro Oku.


IEEE Journal of Solid-state Circuits | 1989

A video codec LSI for high-definition TV systems with one-transistor DRAM line memories

Tomoji Takada; Takeshi Oto; Kazukuni Kitagaki; Naoyuki Hatanaka; Tatsuhiko Demura; Hiromichi Fuji; Toshinori Odaka; Hiroshi Sue; Tadahiro Oku

A video codec LSI for high-definition television (HDTV) systems has been developed. By using a time-compressed integration encoding technique, it converts a 20.0-MHz bandwidth luminance signal and two 5.0-MHz chrominance signals into a compressed image signal at 48.6-MHz sampling frequency. It is useful in many HDTV application systems, such as 400-Mb/s digital transmission system, a video disk player system, or an analog transmission system. Over 288000 elements, including a 52-kb one-transistor DRAM (dynamic random access memory) line memory specially developed for this LSI, were integrated on a 12.16*12.10-mm/sup 2/ chip. A standard cell layout method and a 1.2- mu m CMOS logic LSI process were used. >


Archive | 1993

Motion picture coding apparatus

Hideyuki Ueno; Yoshihiro Kikuchi; Noboru Yamaguchi; Toshinori Odaka; Tadahiro Oku


Archive | 1992

Predictive coding using spatial-temporal filtering and plural motion vectors

Toshinori Odaka; Yoshiharu Uetani; Tadaaki Masuda; Tomoo Yamakage; Hideyuki Ueno; Noboru Yamaguchi; Yoshihiro Kikuchi; Tadahiro Oku


Archive | 1992

Method of detecting a motion vector in an image coding apparatus

Tadaaki Masuda; Yoshiharu Uetani; Toshinori Odaka; Tadahiro Oku; Tomoo Yamakage


Archive | 1998

Video coding apparatus

Toshinori Odaka; Yoshiharu Uetani; Tadaaki Masuda; Tomoo Yamakage; Hideyuki Ueno; Noboru Yamaguchi; Yoshihiro Kikuchi; Tadahiro Oku


Archive | 1994

Video decoder for determining a motion vector from a scaled vector and a difference vector

Toshinori Odaka; Yoshiharu Uetani; Tadaaki Masuda; Tomoo Yamakage; Hideyuki Ueno; Noboru Yamaguchi; Yoshihiro Kikuchi; Tadahiro Oku


Archive | 1999

Video on demand system that presents users with a selection list of proposed videos for which server and network resources are available to immediately serve the selected video

Hideyuki Ueno; Yoshiharu Uetani; Tadahiro Oku; Mitsunori Omokawa; Yukio Kamatani; Tsuguhiro Hirose; Yoshimitsu Shimojo


Archive | 1995

Video recording/reproducing apparatus which uses a differential motion vector determined using two other motion vectors

Toshinori Odaka; Yoshiharu Uetani; Tadaaki Masuda; Tomoo Yamakage; Hideyuki Ueno; Noboru Yamaguchi; Yoshihiro Kikuchi; Tadahiro Oku


Archive | 2000

Television audiovisual, recording and reproducing apparatus using personal computer, method of supplying power to PC card, and PC card

Kiyoshi Hoshino; Tatsuji Kusumoto; Tadahiro Oku; Osamu Kaseno; Hiroyuki Kamio; Kanji Inoue


Archive | 1996

Information transmission system utilizing both real-time data transmitted in a normal-in-time direction and in a retrospective-in-time direction

Hideyuki Ueno; Yoshiharu Uetani; Tadahiro Oku; Mitsunori Omokawa; Yukio Kamatani; Tsuguhiro Hirose; Yoshimitsu Shimojo

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