Discrete fourier transform calculating processor comprising a re

Details Discrete fourier transform calculating processor comprising a re Discrete fourier transform calculating processor comprising a re

1989-06-23

1991-05-21

Shaw, Dale M.

Boots, shoes, and leggings

G06F 1540

Patent

active

050180916

ABSTRACT:
The invention pertains mainly to a processor for the calculation of the discrete Fourier transform, comprising a real-time testing device. The device according to the invention uses the theorem of Parseval to ascertain that the processor is working properly. The device according to the invention uses, for example, an adder and a multiplier to calculate either the discrete Fourier transform or the members of the equation. Thus, by using temporal redundancy, the complexity, area and price of the processor are reduced. The invention is applied mainly to the calculation of spectra.

REFERENCES:
patent: 4408284 (1983-10-01), Kijesky et al.
patent: 4760549 (1988-07-01), du Chene et al.
patent: 4787055 (1988-11-01), Bergeon et al.
IEEE Transactions on Computers, vol. C-24, No. 12, Dec. 1975, pp. 1202-1211, New York, U.S.; De Mori et al.: "A Special-Purpose Computer for Digital Signal Processing", pp. 1202-1211.
Patents Abstracts of Japan, vol. 9, No. 116 (P-357)[1839], May 21, 1985; & JP-A-60 3754 (Nippon Denki K.K.) 10-01-1985.

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