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TEST SYSTEM AND METHOD

  • US 20120062247A1
  • Filed: 09/14/2010
  • Published: 03/15/2012
  • Est. Priority Date: 09/14/2010
  • Status: Active Grant
First Claim
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1. A test system, for testing a capacitive touch sensor, and the test system comprising:

  • a resistor, having a first end electrically connected to a sensing port of the capacitive touch sensor;

    a signal generator, electrically connected to a second end of the resistor, and providing a test voltage to the resistor according to control information, wherein the resistor generates a test current according to the test voltage, and the capacitive touch sensor provides a voltage difference to the sensing port according to a plurality of switching signals, and converts the test current into test information; and

    a micro controller, electrically connected to an output port of the capacitive touch sensor for receiving the test information, generating the control information according to a test table, and comparing the test information according to the test table, so as to determine whether an operation of the capacitive touch sensor is normal.

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