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NON-CONTACT SENSING DEVICE AND ITS METHOD FOR COMPUTER PERIPHERALS

  • US 20120271971A1
  • Filed: 04/17/2012
  • Published: 10/25/2012
  • Est. Priority Date: 04/20/2011
  • Status: Abandoned Application
First Claim
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1. A non-contact sensing device for computer peripherals for using with a digital pointing device, the non-contact sensing device comprising:

  • a power supply for generating a power source signal;

    a transmitting unit for converting the power source signal into an oscillating signal and sending the oscillating signal to the digital pointing device;

    a sensing unit for receiving the oscillating signal sent back from the digital pointing device and converting the oscillating signal into a sensing signal; and

    a controller for outputting a starting signal and a stopping signal with different time ratios to the transmitting unit and the sensing unit, so as to perform a dynamic switching based on the sensing signal.

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