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:
Jul. 06, 1999
Filed:
Jun. 24, 1993
Applicant:
Inventors:
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
711151 ; 711152 ;
Abstract
A circuit arrangement for controlling access to a common memory by two or more processors, one of which is privileged, accelerates and simplifies the execution of the accesses by provision for each processor of its own address register and its own data register. As a result, a processor can process the data read during an access while the next access to the memory is already being carried out for another processor. In the case of write operations, the waiting times are reduced, notably for the non-privileged processors when a write operation is interrupted by a privileged processor, because the data to be written can then be transferred directly to the associated data register.