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. 07, 2002
Filed:
Jun. 01, 1999
Yasushi Nishibe, Aichi-ken, JP;
Yoshiharu Kawarazaki, Aichi-ken, JP;
Kabushiki Kaisha Tokai-Rika Denki-Seisakusho, Aichi-ken, JP;
Abstract
A computer monitoring device is provided that prevents a microcomputer from entering an operational state that cannot be monitored. The microcomputer is started at an output signal Q of a determination circuit is reset by a reset signal RS output from a watchdog circuit . Thereafter, when a clock signal ck is input from the started microcomputer, the determination circuit outputs a clock signal CK to the watchdog circuit and sets the output signal. However, when the standby signal st is detected at the time of starting the microcomputer, the output of the clock signal CK and the set of the output signal Q are stopped. In this way, the standby signal ST is not output from the AND circuit to the watchdog circuit, the output of the reset signal from the watchdog circuit is repeated, and the microcomputer does not operate.