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:
Nov. 19, 1996
Filed:
Jan. 23, 1995
Applicant:
Inventors:
Venkatesh Harinarayan, Menlo Park, CA (US);
Srinivasa D Murthy, San Jose, CA (US);
Alan L Rowe, San Jose, CA (US);
Assignee:
Tandem Computers Incorporated, Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395800 ; 395726 ; 364230 ; 3642426 ; 3642813 ; 364D / ;
Abstract
An apparatus and method, using an inter-processor lock to control access to inter-process relationship data structures in the memory of each processor in a multiprocessor system. The apparatus and method insure that each inter-process relationship is modified in the same sequence on each processor. The apparatus and method also insure that an inter-process relationship is maintained in a consistent state in the face of failure of any of the processors.