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Transform-domain correction of real-domain errors

  • US 6,256,422 B1
  • Filed: 11/04/1998
  • Issued: 07/03/2001
  • Est. Priority Date: 11/04/1998
  • Status: Expired due to Fees
First Claim
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1. A method for digitally processing transform data representing a phenomenon, the method comprising:

  • performing an inverse transform of said transform data to the real domain forming high-precision numbers;

    converting said high-precision numbers to integers and clipping the integers to an allowed range forming initial converted data;

    subtracting said converted data from said high-precision numbers forming high-precision differences;

    forward transforming said initial converted data forming transformed converted data;

    forward transforming said high-precision differences forming transformed differences; and

    adding said transformed differences to said transformed converted data forming corrected transformed data.

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