Patent classifications
G
PHYSICS
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G06
COMPUTING OR CALCULATING; COUNTING
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G06F
ELECTRIC DIGITAL DATA PROCESSING
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17/00
Digital computing or data processing equipment or methods, specially adapted for specific functions
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G06F17/10
Complex mathematical operations
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G06F17/14
Fourier, Walsh or analogous domain transformations; , e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
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G06F17/141
Discrete Fourier transforms
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G06F17/142
Fast Fourier transforms, e.g. using a Cooley-Tukey type algorithm
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