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Mutual capacitance touch sensing device

  • US 9,405,421 B2
  • Filed: 04/03/2015
  • Issued: 08/02/2016
  • Est. Priority Date: 07/06/2006
  • Status: Active Grant
First Claim
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1. A portable electronic device comprising:

  • a first input-enabling element comprising a switch, the switch enabling generation of first input signals that activate the device,a second input-enabling element enabling generation of second input signals, andan input-enabling touch-sensitive display, the touch-sensitive display enabling generation of third input signals when an object touches or is moved across a surface of the touch-sensitive display and fourth input signals when an object applies pressure to the touch-sensitive display, wherein the input-enabling touch-sensitive display comprises a first sensor for generating at least some of the third input signals and a second sensor for generating at least some of the fourth input signals and at least a portion of the first sensor capacitively couples to at least a portion of the second sensor in response to a touch or a press on the input-enabling touch sensitive display.

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