Electrical computers and digital data processing systems: input/ – Access arbitrating – Centralized arbitrating
Reexamination Certificate
2005-05-10
2005-05-10
Auve, Glenn A. (Department: 2112)
Electrical computers and digital data processing systems: input/
Access arbitrating
Centralized arbitrating
C710S107000, C711S163000
Reexamination Certificate
active
06892258
ABSTRACT:
A circuit generally comprising a memory element and a controller. The memory element may define a semaphore allocatable to a resource. The controller may be configured to (i) present a granted status in response to a processor reading a first address while the semaphore has a free status, (ii) set the semaphore to a busy status in response to presenting the granted status, and (iii) present the busy status in response to the processor reading the first address while the semaphore has the busy status.
REFERENCES:
patent: 4380798 (1983-04-01), Shannon et al.
patent: 4780822 (1988-10-01), Miller
patent: 5050072 (1991-09-01), Earnshaw et al.
patent: 5276886 (1994-01-01), Dror
patent: 5634038 (1997-05-01), Saitoh
patent: 5669002 (1997-09-01), Buch
patent: 5696939 (1997-12-01), Iacobovici et al.
patent: 5951662 (1999-09-01), Tissot
patent: 6018785 (2000-01-01), Wenniger
patent: 6263425 (2001-07-01), Falik
patent: 6389515 (2002-05-01), Schibinger et al.
patent: 6493805 (2002-12-01), Nieuwland et al.
patent: 6549961 (2003-04-01), Kloth
patent: 6560627 (2003-05-01), McDonald et al.
patent: 6594736 (2003-07-01), Parks
patent: 20020165896 (2002-11-01), Kim
patent: 01321525 (1989-12-01), None
Holcroft John S.
Lane Christopher J.
Williams Kalvin E.
Auve Glenn A.
Lee Christopher E.
LSI Logic Corporation
Maiorana PC Christopher P.
LandOfFree
Hardware semaphores for a multi-processor system within a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hardware semaphores for a multi-processor system within a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hardware semaphores for a multi-processor system within a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3373312