Circuit for calculating the discrete Fourier transform

Details Circuit for calculating the discrete Fourier transform Circuit for calculating the discrete Fourier transform

1985-07-15

1988-11-22

Harkcom, Gary V.

Boots, shoes, and leggings

G06F 734

Patent

active

047870559

ABSTRACT:
A circuit for calculating the discrete Fourier transform which includes a multiplier, two adders for effecting the calculation of the discrete Fourier transform while describing a butterfly data path, and address processors which supply the multiplier and adders with continuous data under the control of a synchronization clock. To accelerate the calculations, the processor has a memory for reducing the data access time. This memory is divided into two parts, each of which alternately plays the role of calculation memory and input/output memory for the transfer of data with a memory external to the processor.

REFERENCES:
patent: 3875391 (1975-04-01), Shapiro et al.
patent: 4393457 (1983-07-01), New
patent: 4435774 (1984-03-01), Claasen et al.
patent: 4547862 (1985-10-01), McIver et al.
patent: 4563750 (1986-01-01), Clarke

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