Methods and apparatus for controlling a portable electronic device using a touchpad

  • US 6,639,584 B1
  • Filed: 07/06/1999
  • Issued: 10/28/2003
  • Est. Priority Date: 07/06/1999
  • Status: Expired due to Term
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First Claim
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1. A portable electronic device comprising:

  • a housing; and

    a touch-sensitive surface mounted on the housing, the portable electronic device controlled by a user tracing a command pattern on the touch-sensitive surface with a finger, the command pattern matching one of a plurality of preset patterns, each of the plurality of the present patterns corresponding to a predefined function of the portable electronic device, the command pattern being traced without requiring the user to view the portable electronic device, wherein at least one of the plurality of patterns corresponds to a predefined function that is performed only for so long as contact is maintained with the touch-sensitive surface, wherein the command pattern is composed of one of more motions of the finger on the touch-sensitive surface, the one or more motions selected from a group of motions consisting of a left-to-right motion, a right-to-left motion, an upward motion, a downward motion, a clockwise circular motion, a counterclockwise circular motion, a diagonal motion, a tapping motion, and holding the pointing device against the touch-sensitive surface.

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