Olympus Optical Company, Ltd.

Mitsubishi Cable Industries, Ltd.

Nissan Motor Company Limited

Faltec Company Limited

Chihiro Nakagawa

Takeshi Ono

Hidetoshi Yamada

Tsugio Ambo

Satoru Fujiwara

Katsuji Shimazawa

Yoshikatsu Hasegawa

Atsushi Urushidani

Tooru Kashioka

Hiroyuki Fukuda

Hiroshi Sasaki

Takafumi Kishi

Kenji Watanabe

Hiromasa Akaho

Eiichi Miyasaka

Chikako Mogi

Takao Sugita

Tsugio Ryosei Electro-Circuit Systems Ltd Ambo

Kimio Ryosei Electro-Circuit Systems Ltd Nakayama

Kouzou Ryosei Electro-Circuit Systemsltd Sasaki

A circuit board includes a foil circuit provided on a synthetic resin plate formed by injection molding, made of a copper foil, and having a pattern different for the circuit board. Anchor pins projecting upward are provided on the resin plate and passed through pinholes made in the foil circuit. The foil circuit is positioned and secured to the resin plate. In a required portion of the resin plate, a terminal insertion hole is provided, and a receiving terminal is secured to the required portion of the terminal insertion hole and connected to the foil circuit.

Circuit board, its manufacturing method, and joint box using circuit board

A circuit board with a simple structure is manufactured. A circuit boardhas thereon a foil circuitprovided on a synthetic resin plateformed by injection molding, made of a copper foil, and having a pattern different for circuit board. Anchor pinsprojecting upward are provided on the resin plateand passed through pinholes made in the foil circuit. The foil circuitare positioned and secured to the resin plate. In a required portion of the resin plate, a terminal insertion holeis provided, and receiving terminalis secured to the required portion of the terminal insertion holeand connected to the foil circuit

A flat cable including a plurality of conductor strips which are formed by punching a single metal foil and are embedded within an insulating sheet, in which at an end portion of the flat cable, bifurcated portions are folded back one on another such that end terminals of conductor strips of one bifurcated portion are inserted between end terminals of conductor strips of another bifurcated portion, so that an order in which end terminals of the conductor strips are aligned can be changed. Therefore, an electric connection between connectors requiring crossings of conductor strips can be established by a single flat cable.

Flat cable with conductor ends connectable to connector

An apparatus for compressing and coding the image data for each block wherein the image data is first divided into a plurality of image data of the blocks and then the image data of the block is subjected to orthogonal transformation, quantization, and variable length coding. Before the actual coding process, a statistical process is performed to obtain the amount of code data for the respective blocks, an optimum quantization step coefficient for the orthogonal transformation coefficients of the AC components based on the amount of code data for the block and the reference amount of code data, and the amount of code data of the orthogonal transformation coefficients of the AC components for the block. In the actual coding process, the provisional quantization step is used for quantizing the orthogonal transformation coefficients of the DC component and the optimum quantization step is used for quantizing the orthogonal transformation coefficients of the AC component. The coding of the orthogonal transformation coefficients of the AC components is stopped when the amount of code data of the block exceeds the assigned amount of code data.

Image data compressing/coding apparatus

An image data coding apparatus includes a preprocessing unit for executing preprocessing including compression for input image data in units of screens to generate a preprocessed output. A quantizing unit quantizes the preprocessed output with a predetermined quantization width to generate a quantized output. A variable-length coding unit executes variable-length coding for the quantized output. A target-amount-of-codes output unit outputs information concerning a target amount of codes corresponding to one screen. A quantization width predicting unit predicts a suitable quantization width on the basis of the information from the variable-length coding unit to supply information concerning the predicted quantization width to the quantizing unit. The quantizing unit quantizes the preprocessed output generated by the preprocessing unit with the predicted quantization width included in the information from the quantization width predicting unit.

Image data coding apparatus and method capable of controlling amount of

An image data coding apparatus performs first and second coding processes. A controller outputs first and second control signals. An orthogonal transform circuit performs orthogonal transform on image data of one screen and generates an transformed output. A quantizing circuit quantizes the transformed output with a predetermined temporary first quantization width upon reception of the first control signal and generates a first quantized output, and quantizes the transformed output with an optimal second quantization width upon reception of the second control signal and generates a second quantized output. An entropy coding circuit codes the first quantized output and generates a first coded output, and codes the second quantized output and generates a second coded output. An amount-of-codes calculator calculates the amount of codes of the first coded output for each block and calculates the amount of codes of one screen based on the amount of codes for each block. An assigned-amount-of-codes determining circuit determines the amount of codes assigned to each block based on the amount of codes for each block and the amount of codes of the one screen, and the target amount of codes. A quantization width predicting circuit predicts the second quantization width based on the amount of codes of the one screen. A coding stop circuit supplies a coding stop signal to the entropy coding circuit when the amount of codes of the second coded output exceeds the assigned amount of codes.

Image data coding apparatus and coding method

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Tokyo, Japan

Chihiro Nakagawa