Bit reversing apparatus

Details Bit reversing apparatus Bit reversing apparatus

1978-10-10

1980-01-01

Boudreau, Leo H.

Boots, shoes, and leggings

235 92SH, 364726, H03K 2110

Patent

active

041819764

ABSTRACT:
Apparatus is disclosed for reversing the bit order of a selected portion of a digital word. A first shifter is provided to shift the position of the unselected portion of the digital word to a set of terminals. The digital word, in bit reversed order, is coupled to an adjacent set of terminals. The two sets of terminals are fed to a second shifter which couples to the output thereof the digital word with the selected portion thereof in bit-reversed order. Such apparatus is adapted for use in addressing an FFT processor adapted to operate with different batch sizes to retrieve calculated frequency components in ascending order of frequency.

REFERENCES:
patent: 3371320 (1968-02-01), Lachenmayer
patent: 3673399 (1972-06-01), Hancke et al.
patent: 3731284 (1973-05-01), Thies
patent: 3781822 (1973-12-01), Ahamed
patent: 3810112 (1974-05-01), Aho et al.
patent: 3866023 (1975-02-01), Kadakia
patent: 3875391 (1975-04-01), Shapiro et al.
patent: 3942171 (1976-03-01), Haraszti et al.
patent: 3988601 (1976-10-01), Perry

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