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SENSING DEVICES AND ELECTRONIC APPARATUSES USING THE SAME

  • US 20100309156A1
  • Filed: 05/28/2010
  • Published: 12/09/2010
  • Est. Priority Date: 06/03/2009
  • Status: Active Grant
First Claim
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1. A sensing device for sensing light and generating a sensing output signal indicating intensity of the light, comprisinga photo element for sensing the light and generating a current signal at a first node;

  • a comparison circuit, coupled to the first node, for receiving the current signal, wherein the comparison circuit comprises a filter for filtering a high-frequency component on the current signal, and the comparison circuit generates a result signal according to the filtered current signal; and

    a logic circuit for receiving the result signal and performing a logic operation to the result signal to generate the sensing output signal.

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