Electrical signal scrambling apparatus

Details Electrical signal scrambling apparatus Electrical signal scrambling apparatus

1946-01-18

1979-10-30

Buczinski, S. C.

Facsimile and static presentation processing

Facsimile

Recording apparatus

178 22, 179 15S, H04N 144

Patent

active

041730259

ABSTRACT:
2. In an apparatus of the nature described, the combination of means for storing a portion of an electrical signal, means for picking up elements of said portion, a plurality of switching means controlling the conduction of said elements each switching means having a conducting condition and a nonconducting condition, and means for controlling the conductivity of the switching means including a bank of groups of switch contacts each group comprising contacts as numerous as the switching means, and means for selectively closing by groups the contacts of said bank.

REFERENCES:
patent: 1522775 (1925-01-01), Friedman
patent: 1657366 (1928-01-01), Belin
patent: 2312897 (1943-03-01), Guanilla et al.
patent: 2313209 (1943-03-01), Valensi
patent: 2401888 (1946-06-01), Smith
patent: 2406353 (1946-08-01), Myers
patent: 2424998 (1947-08-01), Nyquist

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