Apparatus for encoding and decoding data signals

Details Apparatus for encoding and decoding data signals Apparatus for encoding and decoding data signals

1979-04-16

1981-04-28

Birmiel, Howard A.

Telegraphy

Systems

Printing

331 78, 364717, H04L 902

Patent

active

042647819

ABSTRACT:
An encoder/decoder is provided having two random bit generators which are cross-coupled in the Encoding mode with the data signal being directed to the input of each random bit generator. The data signal is also logically combined with the output of each random bit generator. In the Decoding mode the random bit generators are connected in a feedback configuration and the to-be-decoded signal is directed to the input of each random bit generator. The to-be-decoded signal is also logically combined with the output of each random bit generator to provide the decoded signal.

REFERENCES:
patent: 3614316 (1971-10-01), Andrews, Jr.
patent: 3657699 (1972-04-01), Rocher
patent: 3728529 (1973-04-01), Kartchner et al.
patent: 3784743 (1974-01-01), Schroeder
patent: 3796830 (1974-03-01), Smith
patent: 3911216 (1975-10-01), Bartek et al.
patent: 3988538 (1976-10-01), Patten
patent: 4202051 (1980-05-01), Davida et al.

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