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:
Aug. 24, 2004
Filed:
Jul. 25, 2001
Applicant:
Inventor:
Chris D. Miller, Austin, TX (US);
Assignee:
T.N.S. Holdings, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/200 ; G06F 1/316 ; G06F 1/214 ;
U.S. Cl.
CPC ...
G06F 1/200 ; G06F 1/316 ; G06F 1/214 ;
Abstract
Systems and methods are described for resource locking and thread synchronization in a multiprocessor environment. One method includes restricting access to a protected shared resource by use of a lock; issuing the lock to a requesting software to permit access to the protected shared resource; indicating the issuance of the lock to the requesting software by writing a first value to a lock register; freeing the lock, thereby making the lock available for use by another requesting software, after the requesting software completes accessing the protected shared resource; and indicating that the lock is free by writing a second value to the lock register.