Transmission link

Details Transmission link Transmission link

1990-04-19

1991-05-28

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455102, 455103, 455617, 332108, H04B 1000

Patent

active

050201549

ABSTRACT:
A transmission link for transmitting a sequence of signals comprising pulse and interval signals, across a transmission medium from a transmitter to a receiver circuit of a receiver, whereby each pulse signal is modulated with a frequency. At least two frequencies are used to modulate the pulses, and a separate evaluation circuit is provided in the receiver for each modulating frequency. The output signals of the evaluation circuits are concatenated (linked in series) by a AND-gate circuit.

REFERENCES:
patent: 2952812 (1960-09-01), Klein, Jr. et al.
patent: 3956626 (1976-05-01), Ross
patent: 4150284 (1979-04-01), Trenkler et al.
patent: 4442528 (1984-04-01), Fukuda
patent: 4627105 (1986-12-01), Ohashi et al.
patent: 4928318 (1990-05-01), Ibe et al.

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