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international conference on consumer electronics | 1991

An Experimental Home-use Digital VCR With Three Dimensional DCT And Superimposed Error Correction Coding

Ken Onishi; Takashi Itoh; Hirofwni Nishikawa; Kazuhiro Sugiyama; Hideo Yoshida; Masato Nagasawa; Kihei Ido; Kunihiko Nakagawa; Yoshinobu Ishida; Satoshi Kunii

An experimental digital VCR system for home use is described. A high-quality moving picture is obtained by a newly developed bit rate reduction technology, which is based on subband and three-dimensional DCT (discrete cosine transform) coding. A high-density magnetic recording method which adopts a 12-to-15 modulation scheme and superimposed error correction coding enable sufficient recording time with a small cassette. Component video signals with a ration of 4:2:2 were compressed to about the ratio of 1/7, keeping a high quality, using the subband and 3-D-DCT coding method. >


Archive | 1993

Video signal recording/reproduction apparatus and method for recording/reproducing two kinds of video signals carrying different amounts of information

Ikuo Ohkuma; Makoto Kumano; Kihei Ido; Ken Onishi


Archive | 1993

Data conversion device and recording/reproduction apparatus

Kenji Maeno; Kihei Ido; Masako Yamada


Archive | 1996

Data conversion method, pilot signal formation method using the same rotary magnetic head device for use therein

Kihei Ido; Masayuki Ohta


Archive | 1996

Data conversion method and apparatus imbedding pilot signal into converted data and reducing error propagation between datawords

Kihei Ido; Masako Yamada; Hideaki Kosaka; Masayuki Ohta


Archive | 1993

Recording/reproducing apparatus for recording and reproducing multiple kinds of digital signals having different data amounts per unit time

Kihei Ido; Masako Yamada; Hideaki Kosaka; Masayuki Ohta


Archive | 1994

Method and system using encoded periodic digital sum variation (DSV) as pilot signal and controlling tracking error using crosstalk from the pilot signal

Kihei Ido; Masayuki Ohta


Archive | 1984

Apparatus for reproducing multiple track digital signals and including timing control of read/write operations

Kihei Ido


Archive | 1994

Data conversion apparatus and encoding apparatus

Kenji Maeno; Kihei Ido; Hideaki Kosaka


Journal of The Audio Engineering Society | 1985

On the Development of a Rotary-Head Digital Audio Tape Recorder

Yoshinobu Ishida; Masayuki Ishida; Kenji Goto; Kazuhito Endo; Yoshiharu Osuga; Kihei Ido

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