Hitachi Maxell, Limited

Hitachi, Ltd.

Hitachi Vlsi Engineering Corp.

You Takamori

Hirotada Ueda

Yoshimune Hagiwara

Tetsuya Nakagawa

Kenji Kaneko

Kenichi Kitta

Touru Shinagawa

Atsuchi Kiuchi

Takanori Toyomasu

A multi-processor system for multidimensional image signal processing includes a plurality of co-processors and a host processor which issues processor numbers and a command to the co-processors through a bus. Due to the multi-dimensional nature of the processor numbers, data processing for given ranges of an image signal can be shared by the co-processors. A particular multi-dimensional processor number issued by the host computer which allows simultaneous communication to be performed between the host processor and the co-processors.

Multi-processor system and co-processor used for the same

In an IC card reader and writer there is provided a judging means for judging the type of IC card inserted in the card reader and writer so as to make the card reader and writer compatible with various kinds of IC cards by providing a suitable power supply for accessing information stored in a particular type of memory in the IC card.

Reader and writer for an IC card

Growing community of inventors

Kokubunji, Japan

You Takamori