G - Physics – 06 – K
Patent
G - Physics
06
K
328/10
G06K 9/36 (2006.01) G01R 23/16 (2006.01) G06F 17/10 (2006.01) H04N 7/26 (2006.01)
Patent
CA 1256514
A FILTER-SUBTRACT-DECIMATE HIERARCHICAL PYRAMID SIGNAL ANALYZING AND SYNTHESIZING TECHNIQUE Abstract of the Disclosure A pyramid frequency analyzing technique is taught in which an input sampled temporal signal is convolved with a spatially localized, gradual rolloff kernel weighting function. The resulting convolved signal is subtracted from the input signal in each pyramid stage prior to the convolved signal having its sample density decimated and applied as an input to the next pyramid stage (rather than subsequent to the convolved signal having its sample density decimated as in a Burt Pyramid analyzer). In addition, a synthesizing technique is taught which provides additional high-frequency peaking in each stage thereof, not provided by a Burt Pyramid synthesizer.
495079
Eckersley Raymond A.
Rca Corporation
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