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. 16, 1996
Filed:
Apr. 26, 1994
Michael R Overley, Maple Grove, MN (US);
Unisys Corporation, Blue Bell, PA (US);
Abstract
A response stack validation checking circuit for providing a hardware based approach for monitoring the integrity of a read and a write pointer in a memory stack. The present invention may be utilized in systems having a common memory controller for controlling the read and write pointers or a system having a number of asynchronous memory controllers, wherein each controller controls a different pointer. The present invention allows the memory controller elements to be less complex than a software based approach and therefore may reduce the physical space and power required by the memory controllers. Finally, the present invention may monitor the integrity of the read and write pointers in parallel with the memory controllers and in real time thereby not slowing down system performance.