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Systems and methods for implementing haptics for pressure sensitive keyboards

  • US 20110102326A1
  • Filed: 12/29/2010
  • Published: 05/05/2011
  • 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 the level of pressure applied to the given key;

    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 key pressure indication signals representative of at least two respective different levels of pressure applied to the corresponding given one of the pressure sensitive keys, the at least two different levels of pressure comprising at least first and second different levels of pressure; and

    haptics actuation circuitry coupled and configured to impart a variable haptics motion characteristic independently to each given one of the pressure sensitive keys based at least in part on the key pressure indication signals provided by the pressure sensing interface circuitry corresponding to the pressure level applied to the corresponding given one of the pressure sensitive keys such that a first haptics motion is imparted to a given one of the pressure sensitive keys at the first pressure level applied to the given one of the pressure sensitive keys that is different than a second haptics motion that is imparted to the given one of the pressure sensitive keys at the second pressure level applied to the given one of the pressure sensitive keys.

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