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:
May. 15, 1990
Filed:
Apr. 06, 1988
Applicant:
Inventor:
Takashi Kanazawa, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
364200 ; 364258 ; 3642286 ; 3642712 ;
Abstract
An information processing system comprises at least one arithmetic processing unit operating under the control of a microprogram and a system control unit which exchanges information with the arithmetic processing unit. The system control unit is not required to perform distinction processing between one source of interruption, for example a fault notice, and another source of interruption, for example a clock synchronization demand.