Pulse or digital communications – Repeaters – Testing
Patent
1979-06-05
1981-08-04
Pitts, Harold I.
Pulse or digital communications
Repeaters
Testing
375 17, H04L 2540
Patent
active
042826012
ABSTRACT:
A digital data transmission system wherein pairs of binary input signals are encoded into a three-level signal. The encoding is chosen so as to permit selectively choosing for at least one input pair a pair of transmitted levels having either a positive or negative average value relative to a desired intermediate value. Encoding is then chosen so as to continually seek maintenance of the desired intermediate value for the transmitted three-level signal.
REFERENCES:
patent: 4083005 (1978-04-01), Looschen
patent: 4083010 (1978-04-01), Looschen
patent: 4103234 (1978-07-01), Frazier
Burroughs Corporation
Cass Nathan
Peterson Kevin R.
Pitts Harold I.
Rasmussen David G.
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