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Apparatus and method for reducing errors in a battery operated sensing circuit

  • US 5,872,512 A
  • Filed: 02/09/1996
  • Issued: 02/16/1999
  • Est. Priority Date: 02/09/1996
  • Status: Expired due to Term
First Claim
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1. An apparatus for reducing short circuits in a circuit, comprising:

  • a first pull-up resistor having a predetermined resistance value;

    a second pull-up resistor having a predetermined resistance value lower than the first resistor; and

    means for selectively coupling the resistors with the circuit, wherein the means for selectively coupling periodically couples the first resistor to the circuit, and couples the second resistor to the circuit after a signal is sensed when the first resistor is coupled with the circuit.

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