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:
May. 10, 2005
Filed:
Oct. 26, 2001
Applicants:
Kalvin E. Williams, Thatcham, GB;
John S. Holcroft, Woking, GB;
Christopher J. Lane, Reading, GB;
Inventors:
Assignee:
LSI Logic Corporation, Milpitas, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F013/14 ; G06F013/00 ;
U.S. Cl.
CPC ...
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.