Method for transmitting two digital signals which are independen

Details Method for transmitting two digital signals which are independen Method for transmitting two digital signals which are independen

1993-07-09

1994-09-20

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

H04J 1300

Patent

active

053495853

ABSTRACT:
A method for transmitting two digital signals includes utilizing an encoder to generate a pulse of a fixed width in a coded signal each time a positive going 0-1 transmission is detected in the pulse channel. The polarity of the pulse generated by the encoder is defined by a signal present at the signal channel input. The two digital signals are separated after transmission by a decoder which utilizes the time between two successive level changes. A signal edge in the coded signal initiates a time measurement by the decoder and when a further signal edge appears within a fixed time limit then a signal is allocated to the pulse channel. When, instead, no further signal edge appears within this time limit, the signal is allocated to the signal channel of the decoder.

REFERENCES:
patent: 4387460 (1983-06-01), Boutmy et al.
patent: 4408325 (1983-10-01), Grover
patent: 4706245 (1987-11-01), Suzuki et al.
patent: 4952070 (1990-08-01), Leedke et al.

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