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CAPACITIVE SENSOR INTERFERENCE DETERMINATION

  • US 20100327882A1
  • Filed: 06/24/2009
  • Published: 12/30/2010
  • Est. Priority Date: 06/24/2009
  • Status: Active Grant
First Claim
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1. A method of determining interference in a capacitance sensor device, said method comprising:

  • transmitting a signal on a transmitter sensor channel of said capacitive sensor;

    receiving said signal on a receiver sensor channel of said capacitive sensor, wherein said receiver sensor channel is coupled with an amplifier; and

    examining behavior of said amplifier for non-linearity to determine if a level of interference has been received by said receiver sensor channel in conjunction with receipt of said signal.

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