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:
Jan. 07, 1997
Filed:
Nov. 02, 1992
Applicant:
Inventor:
Richard A Pletcher, Redmond, WA (US);
Assignee:
Microsoft Corporation, Redmond, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395670 ; 395726 ; 395507 ; 395501 ; 3642815 ; 3642813 ; 345185 ; 345132 ;
Abstract
Deadlocks are avoided in an operating system that provides a demand paged memory. A process is granted access to only one page frame in the memory. As the memory is demand paged, a potential for a deadlock arises. The deadlocks may be avoided by determining whether a page currently in the page frame has been accessed. If the page in the page frame has not yet been accessed, a deadlock is imminent.