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. 28, 1995
Filed:
Apr. 26, 1994
Applicant:
Inventor:
Robert H Andrighetti, Woodbury, MN (US);
Assignee:
Unisys Corporation, Blue Bell, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
371 571 ;
Abstract
An apparatus for efficiently detecting an error on a memory stack write pointer or a memory stack read pointer by continuously monitoring the relative position between the two pointers. Using this technique, the present invention may detect certain classes of errors that cannot be detected by other error detection methods such as redundancy. The present invention eliminates the need to provide full redundancy thereby potentially saving considerable cost, size and power in a typical computer system.