Electric communication system

Telegraphy – Systems – Printing

Patent

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Details

178 68, 307215, 340347DD, H04B 700

Patent

active

039939545

ABSTRACT:
A data transmission system for transmitting data and subsidiary information by means of pulses of different widths corresponding to a multiple of a signal propagation time delay of a NAND gate. The system makes it possible to simplify the construction of the data transmission device to a considerable degree and at the same time to transmit data at a high speed, and includes a variety of circuits for generation and demodulation of the pulses.

REFERENCES:
patent: 3248657 (1966-04-01), Turecki
patent: 3461237 (1969-08-01), Salter
patent: 3755691 (1973-08-01), Cassarino

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