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:
Dec. 30, 1997
Filed:
Apr. 21, 1995
Applicant:
Inventors:
John E Derrick, Milton, VT (US);
Christopher M Herring, Longmont, CO (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
395495 ; 395496 ; 395287 ;
Abstract
A cache bus snoop protocol optimizes performance of a multiprocessor computer system with multiple level two caches by allocating windows of cache bus snoop activity on a need basis. When a cycle to cacheable address space is requested, the cache bus is granted only after the necessary snoop and write-back cycles are completed. During the snoop and write-back cycles, snoop activity by other devices in inhibited.