Electrical computers and digital processing systems: virtual mac – Task management or control – Process scheduling
Reexamination Certificate
2011-01-25
2011-01-25
Ho, Andy (Department: 2194)
Electrical computers and digital processing systems: virtual mac
Task management or control
Process scheduling
C718S104000, C710S260000, C710S262000, C712S244000
Reexamination Certificate
active
07877753
ABSTRACT:
A multi-processor system with a plurality of unit processors includes: a semaphore setting section for setting semaphores representing preferential right to the competing of resources to be able to be identified to correspond to each of a plurality of the resources; a semaphore request determining section for determining, whether when a first unit processor among said unit processors requests to obtain a semaphore that is set to said semaphore setting section, the request is for requesting a semaphore being obtained by the second unit processor; and an exclusive controlling section for making the request by the first unit processor wait when it is determined that said request is for requesting a semaphore being obtained, and permitting to obtain the requested semaphore when it is determined that said request is for requesting a semaphore other than the semaphore being obtained by the semaphore request determining section.
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Tanaka Katsuya
Todoroki Akinari
Ho Andy
Oliff & Berridg,e PLC
Seiko Epson Corporation
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