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REENABLE DELAY OF A TOUCHPAD OR TOUCH SCREEN TO PREVENT ERRONEOUS INPUT WHEN TYPING

  • US 20110316774A1
  • Filed: 05/26/2011
  • Published: 12/29/2011
  • Est. Priority Date: 05/26/2010
  • Status: Active Grant
First Claim
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1. A method for preventing unintended data input on a touchpad, said method comprising the steps of:

  • 1) inhibiting touchpad input when typing is occurring;

    2) starting an timeout interval clock at last key-up event;

    3) detecting touchdown of a finger on the touchpad and tracking total path length that the finger is traveling; and

    4) enabling touchpad tap input if the timeout interval clock has expired and total path length exceeds a predetermined path length value, if no new key-down event has occurred.

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