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:
Feb. 01, 2000
Filed:
Sep. 05, 1996
Nobukazu Kondo, Ebina, JP;
Koichi Okazawa, Ebina, JP;
Yukihiro Seki, Yokohama, JP;
Ryuichi Hattori, Yokohama, JP;
Masaya Umemura, Fujisawa, JP;
Shigemi Adachi, Seto, JP;
Kouichi Nakai, Owariasahi, JP;
Takashi Moriyama, Owariasahi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An information processing system includes a first bus, a second bus, a plurality of modules connected to both buses, a bus arbiter for arbitrating a bus access request of a bus master, and a storage means for storing access data up to a predetermined amount for one of modules when access destination information indicates that said module is the access destination. Each bus master outputs access destination information and when the bus arbiter judges that one of the bus masters issues a bus access request when it performs an access operation, the bus arbiter refers to whether the predetermined amount of access destination information is fully stored in the storage means, and decides whether or not to give a bus access to the bus master.