Apparatus for checking for defect of serial communication devices and method thereof
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United States of America Patent
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Feb 26, 2002
Grant Date -
N/A
app pub date -
Dec 15, 1998
filing date -
Dec 15, 1997
priority date (Note) -
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Abstract
An apparatus for checking for a defect of a plurality of serial communication devices and a method thereof wherein a microprocessor is connected to the plurality of serial communication devices through a serial communication line, the serial communication devices are connected to one another in parallel, the microprocessor designates one of the serial communication devices through the serial communication line, and checks for a defect of a thusly designated serial communication device according to a response signal when receiving the response signal from the device, the serial communication devices use the response signal to communicate whether each device is defective, and a display unit externally displays a defect checking result.
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