The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 1992
Filed:
Mar. 28, 1991
Takuichiro Nakazawa, Kodaira, JP;
Makoto Hanawa, Kokubunji, JP;
Atsushi Hasegawa, Koganei, JP;
Ikuya Kawasaki, Tokyo, JP;
Kazuhiko Iwasaki, Hachiohji, JP;
Shigeki Morinaga, Hitachi, JP;
Hisashi Kaziwara, Hitachi, JP;
Takeshi Asai, Hitachi, JP;
Junichi Tatezaki, Kodaira, JP;
Hitachi Microcomputer Engineering Ltd., Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Engineering Co., Ltd., Tokyo, JP;
Abstract
A microcomputer system has a microprocessor and a number of independent coprocessors for executing individual instructions according to instruction data sent from the microprocessor. An address bus and a data bus interconnect the coprocessors with the microprocessor. The microprocessor sends instruction data to the coprocessors via the data bus and concurrently sends coprocessor designation data to the coprocessors via the address bus. The coprocessor designated by the designation data reads and reacts to the instruction data while the other coprocessors within the system disregard the instruction data.