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A-D encoder and D-A decoder system

  • US 4,700,362 A
  • Filed: 08/21/1984
  • Issued: 10/13/1987
  • Est. Priority Date: 10/07/1983
  • Status: Expired due to Term
First Claim
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1. An encoder for converting an analog input signal to a digital signal comprising:

  • means for deriving, from the analog input signal, a control signal indicative of a desired step-size, wherein said control signal deriving means includes a bandwidth limitation circuit for limiting the bandwidth of the control signal, causing the control signal to have substantially a selected rise time;

    a first converter for converting said analog input signal to a digital signal, said converter responsive to said bandwidth limited control signal so that the digital signal will be generated in accordance with the desired step-size; and

    means for introducing time delay to said analog input signal before it reaches the first converter to compensate for the rise time of said control signal.

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