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Method and apparatus for providing input to a processor, and a sensor pad

  • US 8,766,925 B2
  • Filed: 02/26/2009
  • Issued: 07/01/2014
  • Est. Priority Date: 02/28/2008
  • Status: Active Grant
First Claim
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1. An apparatus for providing input to a processor comprising:

  • a sensor pad having a surface and a sensor array for sensing pressure at the surface and producing signals corresponding to the pressure at the surface, the sensor array having a first sensor layer comprising of a plurality of column electrodes and a second sensor layer comprising of a plurality of row electrodes, wherein spaces between each of the column electrodes and each of the row electrodes are filled with a flood coat of resistive material, the flood coat of resistive material acting as a linear resistor between each of the electrodes and for measuring pressure on the surface between at the electrodes;

    an interface in contact with the sensor pad and in communication with the sensor array which couples to the processor to communicate the signals to the processor; and

    wherein the sensor pad has a spacer to create a gap between the first sensor layer and the second sensor layer.

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