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SEMICONDUCTOR INTEGRATED CIRCUIT

  • US 20160266187A1
  • Filed: 03/02/2016
  • Published: 09/15/2016
  • Est. Priority Date: 03/09/2015
  • Status: Active Grant
First Claim
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1. A semiconductor integrated circuit, comprising:

  • a harmonic oscillator circuit;

    a first switch circuit configured to cause an oscillating state of the harmonic oscillator circuit to switch between an “

    on”

    state and an “

    off”

    state;

    a detector circuit configured to produce a voltage responsive to an amplitude of the oscillating output of the harmonic oscillator circuit;

    a decision circuit configured to detect whether the voltage produced by the detector circuit exceeds a threshold in synchronization with a clock signal; and

    a second switch circuit configured to control whether or not to apply noise from a noise source to the harmonic oscillator circuit.

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