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System for generating correction signals for use in forming low distortion analog signals

  • US 5,182,558 A
  • Filed: 10/25/1991
  • Issued: 01/26/1993
  • Est. Priority Date: 10/25/1991
  • Status: Expired due to Fees
First Claim
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1. A signal generator for generating a correction signal from a digital data signal for forming a low distortion analog signal, comprising:

  • a data signal source for outputting a segment of said digital data signal;

    a storage device having an input coupled to the output of said data signal source for storing said segment of said digital data signal;

    a distortion estimator having an input coupled to the output of said data signal source and operable to determine signal distortion characteristics of said segment of said digital data signal when said segment is repetitively read out from said storage device and converted to an analog data signal;

    a correction signal encoder adapted to encode the output of said distortion estimator into a segment of digital correction signal having opposite phase and increased amplitude form said signal distortion phase and amplitude of said output of said distortion estimator, and having an output coupled to said input of said storage device for outputting said segment of digital correction signal to said storage device.

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