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Systems and methods for implementing pressure sensitive keyboards

  • US 20100321301A1
  • Filed: 06/08/2010
  • Published: 12/23/2010
  • Est. Priority Date: 12/16/2008
  • Status: Active Grant
First Claim
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1. A keyboard system, comprising:

  • one or more pressure sensitive keys configured to provide analog output signals corresponding to each given one of the pressure sensitive keys that is representative of pressure applied to the given key; and

    pressure sensing interface circuitry coupled to receive the analog output signal from each given one of the pressure sensitive keys, the pressure-sensing digital output circuitry being configured to provide a separate alternating open and short digital output signal based thereupon having a frequency that is representative of pressure applied to the corresponding given one of the pressure sensitive keys.

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