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System and method for the injection and cancellation of a bias voltage in an attenuated circuit

  • US 5,996,100 A
  • Filed: 12/22/1997
  • Issued: 11/30/1999
  • Est. Priority Date: 12/22/1997
  • Status: Expired due to Fees
First Claim
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1. An apparatus for eliminating a bias voltage injected into a circuit, the apparatus comprising:

  • an attenuator, having an attenuator input and an attenuator output, the attenuator input is connected to an input signal;

    a summing network having first and second inputs and an output, the first input is connected to the attenuator output, the second input is connected to a voltage source; and

    an output node, electrically coupled to the output of the summing network;

    wherein the voltage at the output node is the analog equivalent of the input signal.

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