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:
Sep. 03, 1996
Filed:
Nov. 01, 1993
Hiromi Suzuki, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A shared bus control system for multiprocessor system having shared buses for a plurality of processors comprises a bus mediation circuit which outputs the switch control signal to switch accessing to the shared buses by the plurality of processors with synchronizing the system clock and a bus selection circuit which selects the address and data from one processor according to the switch control signal and outputs them to the shared buses. It further comprises a state detection circuit which decodes the bus status signal from the particular processor among the processors and detects the bus state of the particular processor and a clock modulation circuit to modulate the operation clock for the particular processor when the state detection circuit detects the particular bus states.