Electronic control device

Details Electronic control device Electronic control device

2007-12-14

2011-10-18

Baderman, Scott (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S047100, C714S051000, C714S048000

Reexamination Certificate

active

08042009

ABSTRACT:
An electronic control device according to an embodiment of the present invention includes an arithmetic device such as a microcomputer having a watchdog timer circuit, and a runaway monitoring circuit which monitors the arithmetic device for an operational failure by receiving a pulse output from the arithmetic device, in which the watchdog timer circuit or the runaway monitoring circuit detects occurrence of a failure of the arithmetic device according to the state (high level or low level) of an indication signal (wakeup signal) which shows the operational state of the arithmetic device.

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patent: A-4-205152 (1992-07-01), None
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patent: A-11-282725 (1999-10-01), None
patent: A-2004-326629 (2004-11-01), None
“Watchdog Timer in Power-Management System,”IBM Technical Disclosure Bulletin, vol. 41, No. 01, Jan. 1998, p. 737.

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