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:
Jun. 25, 1996
Filed:
May. 12, 1992
Applicant:
Inventors:
Kenichi Tsuchiya, New Brighton, MN (US);
Thomas J Adelmeyer, Hillsboro, OR (US);
Assignee:
Unisys Corporation, Blue Bell, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395417 ;
Abstract
A virtual memory computing system is provided with a novel table-look-aside-buffer (TLB). The table-look-aside-buffer is located in cache memory and provides high speed verification that a page address being accessed by the instruction processor is present in the high speed mass storage unit (MSU) of the computer system. In the event of a page miss in the TLB, the control circuits associated with the TLB fetch a page descriptor and generate a translated real page address which is stored in the TLB in an invalidated (decelerated) or non-degraded and least recently used address.