Sanyo Electric Co., Ltd.

Akira Toguchi

Satoshi Tanaka

Yukio Sugimura

Tetsuro Yabumoto

Toshihiro Andoh

Tatsuya Kondo

An image signal processing apparatus includes two JPEG codecs. A plurality of frames of image signals periodically input from a multiplexer are individually compressed by the two JPEG codecs, and the compressed image signals are recorded on a hard disk by an HDD. Furthermore, the plurality of frames of the compressed image signals reproduced from the hard disk are individually expanded by the two JPEG codecs, and the expanded image signals are output to a monitor. Herein, each of the JPEG codecs selectively executes individual compression of the plurality of frames of the image signals and individual expansion of the plurality of frames of the compressed image signals. A CPU makes the JPEG codecs perform the compression process prior to the expansion process.

Image processing apparatus which records images in a compressed state and outputs compressed images in an expanded state

A surveillance camera system includes a multiplexer. The multiplexer successively selects image data output from each surveillance camera one by one so as to input the selected image data to an image recording apparatus. The image data input to the image recording apparatus is subjected to a compression process by a compression expansion circuit and then, recorded on a hard disk. The compression process is performed on the basis of a reference coefficient stored in a management list within a memory. It is noted that a value capable of the image data to be compressed up to a size within a target range is set as a reference coefficient in an initialization process by a CPU. Furthermore, the reference coefficient is sequentially renewed by the CPU at a recording process.

Image processing apparatus and surveillance camera system utilizing the same

Coding method and apparatus

Still reproduction controlling circuit

A device for use in a tape driving apparatus for detecting the tape end made of transparent material, comprising means for generating signals consisting of a first output and a second output having a delay time behind the first output, a device for emitting light upon the existence of the second output, a sensor for receiving the light emitting from the light emitting device through the tape end of transparent material, and a discriminating means for controlling, by means of the first output, the output supplied from the sensor during the existence of the second output, whereby the tape end is correctly detected without causing trouble in connection with extraneous light to be introduced from the outside.

Tape end detecting device

Growing community of inventors

Osaka, Japan

Akira Toguchi