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:
Dec. 20, 2005
Filed:
Apr. 04, 2002
Alexander Joffe, Palo Alto, CA (US);
Asad Khamisy, Fremont, CA (US);
Alexander Joffe, Palo Alto, CA (US);
Asad Khamisy, Fremont, CA (US);
Applied Micro Circuits Corporation, San Diego, CA (US);
Abstract
Logic (also called 're-ordering semaphore') issues semaphore grants to access a shared resource in an order different from the order in which semaphore requests for accessing the shared resource are received. The re-ordering semaphore needs to receive a semaphore release between any two semaphore grants. There is no limit on the duration between a semaphore grant and a semaphore release, so that a task that receives a semaphore grant can use the shared resource for any length of time. In one embodiment, each request is associated with a number indicative of the order in which grants are to be issued, and the re-ordering semaphore uses this number in deciding which request is to be granted. The number can be a sequence number that is indicative of the order of arrival of packets that generated the requests.