×

Communication between touch-panel devices

  • US 8,643,625 B2
  • Filed: 06/10/2010
  • Issued: 02/04/2014
  • Est. Priority Date: 06/10/2010
  • Status: Expired due to Fees
First Claim
Patent Images

1. A touch-panel device comprising:

  • a processor;

    a detect electrode including a touch-panel grid of capacitive electrodes; and

    a controller coupled to the processor, the controller including a detection circuit coupled to the detect electrode, wherein the controller is configured to receive a first signal from the detect electrode with the detection circuit, detect a modulation in the received first signal, and determine information associated with the detected modulation, wherein the detected modulation in the first signal is indicative of a physical proximity between the touch-panel device and another touch-panel device, wherein the first signal is provided by another touch-panel grid of capacitive electrodes of the other touch-panel device.

View all claims
  • 7 Assignments
Timeline View
Assignment View
    ×
    ×