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Combination touch and transducer input system and method

  • US 10,365,766 B2
  • Filed: 10/19/2018
  • Issued: 07/30/2019
  • Est. Priority Date: 10/02/2008
  • Status: Active Grant
First Claim
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1. A pen-shaped stylus for use with an input system including sensing electrodes that are coupled with a sensor controller, comprising:

  • signal generation circuitry configured to generate a driving signal;

    an antenna configured to emit an electric field to the sensing electrodes capacitively based on the driving signal;

    a pressure sensor configured to generate a pressure signal indicative of a pen pressure applied to a tip of the pen-shaped stylus;

    a transmitter, which is different from the antenna, configured to transmit the pressure signal generated by the pressure sensor to the input system;

    a receiver configured to receive information that is transmitted from the input system; and

    a controller, which, in operation,controls the receiver to receive information from the input system, and controls the antenna to emit an electric field to the sensing electrodes capacitively to indicate a position pointed to by the pen-shaped stylus, and further controls transmitting the pressure signal using at least one of the antenna and the transmitter,wherein, for transmission of the pressure signal through the antenna, a capacitive coupling link is established between the antenna and the sensing electrodes and, for transmission of the pressure signal through the transmitter, a wireless link is established between the transmitter and the input system.

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