Two-dimensional transform processor
OwnerPasquale A. Merolainventor
Life of this patent
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Abstract
A processor capable of performing a two-dimensional transform on high speed serial sampled analog raster scanned data and outputing the results in a parallel fashion so as to provide for a data rate reduction. The processor utilizes a charge coupled device (CCD), a matrix multiplier to perform a one-dimensional transform on data samples from a serial to parallel converter. The data is switched into a set of matrix multipliers which perform another transformation whose results are summed in an accumulator to yield the desired two-dimensional transformed coefficients.
Claims2
A two-dimensional transform processor capable of sampling each pixel of raster scanned serial data every tp seconds comprising:
- a series to parallel data converter means which accepts N raster scanned serial data samples and transforms the order of said samples into a parallel order;
- a first matrix multiplier means capable of accepting data from said series to parallel data converter means in a parallel order every Ntp seconds and yielding N one-dimensional transformed data samples as output values every Ntp seconds;
- at least N switching means, each of said switching means having one input terminal and N output terminals, each input terminal of each of said switching means being connected to said first matrix multiplier so as to accept one of the N one-dimensional transformed data samples, said N output terminals of each of said N switching means having one data sample and N-1 zero valued samples;
- at least N second matrix multiplier means, each of said second matrix multiplier means having N input terminals and N output terminals, each of said N input terminals being connected to N output terminals of one of said N switching means, each of said N second matrix multiplier means computing N partial products every Ntp seconds;
- an accumulator means which accumulates N.sup.2 partial products which comprise the two-dimensional transform of said raster scanned serial pixel samples.
Dependencies are inferred from the claim text.