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Detecting touch input provided by signal transmitting stylus

  • US 10,048,811 B2
  • Filed: 09/16/2016
  • Issued: 08/14/2018
  • Est. Priority Date: 09/18/2015
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • a propagating medium configured to receive a first touch input provided by a touch input indicator device, wherein the touch input indicator device includes a transmitter that transmits a first signal to the propagating medium when the touch input indicator device contacts the propagating medium and the first signal encodes a digital binary data;

    a receiver coupled to the propagating medium, wherein the receiver is configured to receive the first signal, from the touch input indicator device, that has been propagated through the propagating medium; and

    a fixed transmitter coupled to the propagating medium at a fixed location and the fixed transmitter is configured to transmit a second signal to be propagated through the propagating medium and received at the receiver; and

    a processor configured to detect the digital binary data in the received signal and detect based at least in part on the detection of the digital binary data, the first touch input provided by the touch input indicator device, and identify a location of a second touch input provided on the propagating medium at least in part by analyzing a disturbance by the second touch input to the second signal propagated through the propagating medium.

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