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Soft key interaction indicator

  • US 7,649,526 B2
  • Filed: 12/23/2005
  • Issued: 01/19/2010
  • Est. Priority Date: 12/23/2005
  • Status: Active Grant
First Claim
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1. A method of indicating interaction on a device comprising a touch-sensitive display, comprising:

  • displaying a soft key on the touch-sensitive display;

    detecting contact with the touch-sensitive display corresponding to interaction with the soft key;

    in response to detecting the contact, controlling a change in optical intensity of a periphery of the soft key in accordance with a predefined mathematical function, wherein the predefined mathematical function is a periodic function;

    in response to detecting a release of the contact, determining whether the optical intensity of the periphery is at a minimum optical intensity; and

    when the optical intensity of the periphery is not at the minimum optical intensity, returning the optical intensity of the periphery to the minimum optical intensity according to the predefined mathematical function.

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