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:
Apr. 26, 1988
Filed:
Jun. 26, 1986
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
In this invention, when a service processor must request processing to all of n processors, it supplies a processing request to one of the n processors using a 1:1 inter-processor communication instruction. The processor receiving the request from the service processor then supplies a processing request to the remaining (n-1) processors using a 1:n inter-processor communication instruction. A bus control unit for controlling a system bus has a flag indicating whether or not the 1:1 (or 1:n) inter-processor communication instruction is sent. The service processor and other processors refer to the flag. When the flag is ON, issuance of the 1:1 (or 1:n) inter-processor communication instruction is inhibited to prevent contention between a plurality of requests.