Pulse or digital communications – Multilevel – Transmission line
Patent
1995-04-05
1998-08-18
Tse, Young T.
Pulse or digital communications
Multilevel
Transmission line
375229, 375258, 375319, 326 60, H04L 2506
Patent
active
057967814
ABSTRACT:
A data received is provided with DC restoration circuitry for correcting the DC level of received multi-level data signals. A DC shift detection circuit detects whether the received DC level multi-level signals has shifted due to a predominance of one of the data levels in the data stream. A correction circuit responds to the shift detection circuit by applying a corrective bias to an isolation transformer. Alternatively, the correction circuit applies a corrective bias to the received signals within the receiver circuit.
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Conroy Keith M.
DeAndrea John J.
Technitrol, Inc.
Tse Young T.
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