Pulse or digital communications – Repeaters – Testing
Patent
1991-05-10
1994-03-15
Kuntz, Curtis
Pulse or digital communications
Repeaters
Testing
375 17, 330259, 307491, H04L 2506
Patent
active
052951618
ABSTRACT:
A differential transimpedance amplifier used in amplifying optical signals transmitted with a balanced code has a level restore circuit which integrates the digital output of the amplifier and feeds back the result to one of the differential inputs of the amplifier. The feedback signal removes imbalances from the amplifier output. The balanced amplifier output can then be processed by a clock reconstruction circuit to accurately sample the received optical signal with a low bit error rate.
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IBM TDB vol. 26 No. 7B Dec. 1983-"Offset Compensation for Balanced Signal Communication Zero-Crossing Threshold Detector".
Dreps Daniel M.
Rizzo Raymond P.
Ghebretinsae T.
International Business Machines - Corporation
Kuntz Curtis
Steinberg William H.
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