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Method and system for VCO-based analog-to-digital conversion (ADC)

  • US 6,809,676 B1
  • Filed: 08/20/2002
  • Issued: 10/26/2004
  • Est. Priority Date: 08/20/2002
  • Status: Expired due to Term
First Claim
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1. A method for converting an analog input signal to a digital output signal, the method comprising:

  • converting the analog input signal to at least one intermediate signal having a frequency dependent on the analog input signal regardless of polarity;

    determining said frequency of said at least one intermediate signal; and

    mapping said determined frequency of said at least one intermediate signal to an output value, said output value representing the digital output signal representative of the converted analog input signal.

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