Apparatus for utilizing a discrete fourier transformer to implem

Details Apparatus for utilizing a discrete fourier transformer to implem Apparatus for utilizing a discrete fourier transformer to implem

1991-12-13

1993-11-02

Malzahn, David H.

Boots, shoes, and leggings

G06F 15332

Patent

active

052589412

ABSTRACT:
An apparatus for utilizing a discrete Fourier transformer to implement a discrete cosine transformer is disclosed. This apparatus contains a first scrambler for rearranging a first real input data stream, a second scrambler for rearranging a second real input data stream, and a convertor for converting a complex data stream output from a Discrete Fourier Transformer into two streams of discrete cosine transformed data.

REFERENCES:
patent: 4385363 (1983-05-01), Widergren
patent: 4873658 (1989-10-01), Cambonie
patent: 5053985 (1991-10-01), Friedlander et al.
patent: 5117381 (1992-05-01), Juri et al.
Tseng et al., "On Computing the Discrete Cosine Transform" IEEE Trans. on Computers vol. C-27, No. 10 pp. 966-968 Oct. 1978.

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