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Method and apparatus with adaptive transponder plucking

  • US 5,621,396 A
  • Filed: 06/30/1994
  • Issued: 04/15/1997
  • Est. Priority Date: 06/30/1994
  • Status: Expired due to Term
First Claim
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1. A system with adaptive plucking, comprising:

  • a resonant circuit operable to generate an oscillating signal;

    a peak level detector operable to detect a peak level of said oscillating signal;

    a comparator coupled to said peak level detector and operable to compare said peak level with a reference voltage; and

    a switch coupled to said resonant circuit and said comparator, said switch operable to couple power to said resonant circuit under control of said comparator.

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