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:
Oct. 09, 1990
Filed:
Nov. 07, 1985
Applicant:
Inventors:
Douglas R Case, San Jose, CA (US);
Watson M Conner, Atherton, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
364900 ; 3649623 ; 3649622 ; 3649620 ; 3649662 ;
Abstract
A new use for an LRU-managed cache coupling the main memory of a CPU for sort string generation of m records while minimizing the number of reference misses per record to said cache is described. During a first pass, a partially nested ordering or sort is effectuated using the cache, and then during a second pass a replacement selection merge upon the nested order constrained to fit within the cache is brought about.