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Efficient flexible digital filtering

  • US 6,457,032 B1
  • Filed: 11/15/1997
  • Issued: 09/24/2002
  • Est. Priority Date: 11/15/1997
  • Status: Expired due to Term
First Claim
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1. A method for digitally processing a one-dimensional signal, the methodcomprising:

  • convolving the one-dimensional signal with a function that is the (n+1)th difference of an nth order discrete piecewise polynomial kernel so as to provide a second one-dimensional digital signal, ‘

    n’

    being at least 2, the polynomial kernel having at least one non-linear piece, and the function having fewer non-zero elements than the polynomial kernel has non-zero elements; and

    performing discrete integration n+1 times on the second one-dimensional digital signal to produce a processed signal.

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