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:
Apr. 30, 1991
Filed:
Aug. 02, 1988
Applicant:
Inventor:
Tatsuya Ueda, Itamishi, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ; 36424341 ; 3642716 ;
Abstract
Conventional microprocessors access cache memory and external memory using a common data bus and share a single program counter. According to this invention, the cache memory and the external memory have corresponding program counters and separate data buses. The capacity to update the cache memory program counter concurrently with a cache memory access increases the speed of data processing.