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Method for identifying a single tap, double taps and a drag and a controller for a touch device employing the method

DC
  • US 8,164,575 B2
  • Filed: 06/20/2008
  • Issued: 04/24/2012
  • Est. Priority Date: 06/20/2008
  • Status: Active Grant
First Claim
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1. A method for identifying a single tap during an object contacting a touch device comprising following steps:

  • (a) detecting when said touch device is touched by a first hit-movement conducted by said object;

    (b) measuring time starting when the touch device is touched by the first hit-movement;

    (c) detecting when said first hit-movement leaves said touch device, and comparing an amount of time starting from when the touch device is touched by the first hit-movement and ending when the first hit-movement leaves said touch device with a first reference time interval, the first reference time interval being a predetermined time duration measured starting when the touch device is touched by the first hit-movement;

    (d) generating an operation signal corresponding to the touch and the leave of the first hit-movement upon completion of the first reference time interval when the first hit-movement leaves said touch device before completion of the first reference time interval;

    (e) detecting if a second hit-movement is conducted by said object to touch said touch device within a second reference time interval, and maintaining said operation signal during the second reference time interval, the second reference time interval being a predetermined time duration measured starting upon completion of the first reference time interval;

    (f) terminating said operation signal at an end of said second reference time interval when no second hit-movement is conducted by said object for touching said touch device within the second reference time interval.

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