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Systems and methods for enhancing analog to digital conversion resolution

  • US 8,193,961 B2
  • Filed: 09/23/2010
  • Issued: 06/05/2012
  • Est. Priority Date: 09/23/2010
  • Status: Expired due to Fees
First Claim
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1. A circuit for converting analog signals to digital signals, the circuit comprising:

  • a variable gain amplifier circuit operable to apply a first gain value to an input to yield a first amplified output, and to apply a second gain value to the input to yield a second amplified output;

    an analog to digital converter circuit operable to receive a derivative of the first amplified output and to provide a corresponding first digital sample, and to receive a derivative of the second amplified output and to provide a corresponding second digital sample; and

    a summation circuit operable to combine the first digital sample and the second digital sample.

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