I/O module

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10234839
APP PUB NO 20180052434A1
SERIAL NO

15679640

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In an I/O module, a communication enables communications between first and second external devices upon a voltage being supplied from a power source thereto. A shutoff switch shuts off supply of the voltage to the communication controller when turned off. A capacitor is charged based on the voltage supplied from the voltage source while the shutoff switch is in an on state. The capacitor supplies an operating voltage to the communication controller while the shutoff switch is turned off. The communication controller detects a voltage across the capacitor as a diagnostic voltage, and outputs a turn-off command to the shutoff switch for turning off the shutoff switch. The communication controller determines whether there is a fixedly closed malfunction in the shutoff switch based on the diagnostic voltage while outputting the turn-off command to the shutoff switch.

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Patent Owner(s)

  • DENSO WAVE INCORPORATED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Maekawa, Takaaki Chita-gun, JP 34 261

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