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METHOD AND APPARATUS FOR DETECTING CUT-OFF FREQUENCY OF PULSE SIGNAL

  • US 20140098927A1
  • Filed: 08/23/2013
  • Published: 04/10/2014
  • Est. Priority Date: 10/05/2012
  • Status: Active Grant
First Claim
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1. An apparatus for detecting a cut-off frequency of a pulse signal, the apparatus comprising:

  • an input processor configured to generate a second pulse signal at a time when a rising edge and a falling edge of a first pulse signal appear, in a case the first pulse signal, which is a pulse signal of a monitoring object, is inputted;

    a counter configured to count a clock signal relative to the second pulse signal generated by the input processor;

    a reset processor configured to reset the counter at every predetermined (set) period; and

    a detector configured to generate and output a cut-off frequency of a detection signal, in a case an output value of the counter exceeds a predetermined (set) threshold during the predetermined period.

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