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:
Jan. 23, 1990
Filed:
Jan. 27, 1988
Applicant:
Inventor:
Masafumi Kawahara, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
371 161 ; 371 163 ;
Abstract
A self-monitoring system is comprised of a main processing unit incorporating a computer and an interrupt processing unit which regularly interrupts the operation of program by the main processing unit. Each unit contains a counter which counts the processing time of the associated unit and is initialized by the other unit. The two units thereby check the operation of each other by monitoring the numbers counted by these counters.