Canon Kabushiki Kaisha

Motokazu Kashida

Kenichi Nagasawa

Koji Takahashi

Shinichi Yamashita

Masahiro Takei

Toshiyuki Masui

Akihiro Shikakura

Kenji Kawai

Makoto Shimokoriyama

Kouji Takahashi

Susumu Kozuki

Katsuji Yoshimura

Ikuo Watanabe

Akio Fujii

Tsutomu Fukatsu

Toshihiro Yagisawa

Masahide Hirasawa

Akio Aoki

Tetsuya Shimizu

Hiroyuki Takimoto

Hidenori Hoshi

Naoto Abe

Masahiko Enari

Masahiro Ando

Mitsuru Owada

Shingo Ikeda

Makoto Gohda

Mitsuhiro Otokawa

Suzumu Kozuki

Mitsugu Tanaka

Yoshiki Ishii

Yasutomo Suzuki

Masahide Hasegawa

Katsumi Karasawa

Nobuhiro Hoshi

Tomohiko Sasatani

Toshiya Yatomi

Yoshifumi Satake

Shoichi Ibaraki

Nobukuni Roppongi

Kenichi Nagawasa

Makoto Shmokoriyama

Masayuki Ochi

An image processing apparatus includes an image pickup circuit having a plurality of photographic modes, such as television standards, a compression processing circuit for performing compression processing of an image pickup signal outputted from the image pickup circuit, the compression circuit having a plurality of compression modes, and a selecting circuit for selecting one of the compression modes of the compression processing circuit in accordance with a selected one of the photographic modes of the image pickup circuit.

Image processing apparatus

Image processing apparatus with recording and reproducing modes for hierarchies of hierarchically encoded video

There is provided an apparatus capable of preventing the image quality deterioration, in the block encoding of an image signal which has already been subjected to encoding, such as in the dubbing operation, by entering block forming information relating to the block forming operation applied previously to the image signal, at the entry of the image signal, and dividing the image signal into blocks according to the block forming information.

Apparatus for block-encoding input image signals

A video data recording apparatus which records video data by forming a number of tracks parallel with each other on a recording medium, wherein a period at which each of the tracks is formed is not one integral-number-th of a period of time for which a field of video signal is recorded, and wherein a time code is recorded at a constant position of each of the tracks.

Video data recording apparatus for recording search data

An information transmission system using data compression and/or error detection includes an information compression circuit for compressing digital information to generate compressed information. A record/reproducing device is provided for recording the compressed information on a recording medium, and reproducing the compressed information from the recording medium. Transmission circuitry is provided for transmitting the compressed information reproduced from the record/reproducing device to a transmission channel without expanding the compressed information. An information expansion circuit is then provided for expanding the compressed information which has been transmitted through the transmission channel in order to reproduce the digital information.

Information transmission system using data compression and/or error

A signal recording apparatus, for recording a TV signal in which an audio signal such as a MUSE signal and a video signal are multiplexed in a time sharing manner in units of a given period of time, is arranged to code these video and audio signals alike, to dispersively allocate a discretely separated audio signal within the video signal, and to provide symbols other than the symbols the audio and video signals within each of synchronizing block for the purpose of permitting the use of other video signal recording apparatuses. The arrangement permits simplification and high-quality of the apparatus for recording the signals of this kind and thus contributes to the popularization of the apparatus.

Signal recording apparatus

A reproducing method and apparatus for reproducing images by reading an image signal from a recording medium, the image signal including a plurality of blocks each including image data and control data to control reproduction of an image in conjunction with other blocks. The reproducing method includes the steps of reading the image signal from the recording medium; setting a mode from among a plurality of modes including a normal reproduction mode, in which the blocks are read in the reading step in a sequence corresponding to a recording sequence of the image signal, and a special reproduction mode, in which the blocks are read in the reading step in a sequence different from a recording sequence of the image signal; rewriting the control data of a block in the read image signal in the special reproduction mode; and reproducing the image data included in a block in accordance with the control data which is rewritten in the rewriting step.

Image reproducing method and apparatus capable of skipping reproduction

An apparatus for recording video data by forming many tracks on a recording medium and/or for reproducing the video data from the tracks is provided with a memory which is arranged to have recording video data or reproduced video data supplied thereto. The apparatus detects the picture change-over portion of the video data obtained within the tracks and controls, in accordance with the detected position, an offset degree between the writing and reading addresses of the memory.

Video data recording and/or reproducing apparatus

An image processing system includes a first image processing apparatus connected to a second image processing apparatus Each apparatus includes a programmable data compressor that performs image data compression in accordance with at least two data compression programs. The first image processing apparatus is able to request the second image processing apparatus to transmit to it a compression program stored by said second processing apparatus, which the first image processing apparatus may then use in its own data compressor.

Image processing system providing access to data processing

An information signal reproducing apparatus capable of correcting digital an information signal utilizing correction data, is formed from a reference signal contained in an information signal reproduced from a recording medium, in which the correction of the digital information signal is conducted behind a digital signal processor for processing the digital information signal corresponding to the reproduced information signal, so that the number of bits handled by the digital signal processor is minimized and the circuit magnitude of the digital signal processor is reduced.

Information signal reproducing apparatus with signal correcting function

An apparatus for reproducing digital information from a recording medium having a plurality of parallel tracks and digital information recorded thereon as n-channel (n being an integer greater than or equal to 2) digital signals. The n-channel digital signals are reproduced by n-reproducing heads. The digital information contained in the reproduced signals is stored in a storage device. Discriminating data is obtained for determining which of the n-channel digital signals reproduced correspond to the reproducing heads. The timing of an access device, accessing the storage device for performing a predetermined processing of the digital signals stored in the storage device relative to the reproducing timing of the digital information reproduced by the n reproducing heads, is controlled in accordance with the discrimination data.

Multichannel digital-signal reproducing apparatus for switching access

Growing community of inventors

Tokyo, Japan

Motokazu Kashida