Apparatus for interleaving and de-interleaving data

Details Apparatus for interleaving and de-interleaving data Apparatus for interleaving and de-interleaving data

1981-09-21

1983-07-19

Miller, C. D.

Communications: electrical

Audible indication

Percussion-type sound producer

371 40, H03K 1324

Patent

active

043946429

ABSTRACT:
A novel interleaver-de-interleaver is provided which is adapted to store bits of a data stream after being error encoded. The data bits are stored in a random access memory in addresses identifiable by an array of columns and rows. The interleaver comprises address pointer means and logic for reading the data bits out of the memory addresses in a predetermined reordered sequence to provide a quasi-random pattern sequence of data bits which when transmitted are substantially immune to periodic bursts of radio frequency interference signals.

REFERENCES:
patent: 4281355 (1981-07-01), Wada
Richer, "IEEE Transactions on Communications", vol. COM-26, No. 3, Mar. 1978, pp. 406-408.

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