Multirate automatic equalizer

Details Multirate automatic equalizer Multirate automatic equalizer

1986-04-30

1989-06-13

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

375 98, 333 18, H04L 2708

Patent

active

048399051

ABSTRACT:
An automatic amplifying and equalizing circuit for bipolar data signals has first and second voltage controlled amplifiers controlled by the output of a peak detector. The first amplifier provides even amplification of frequency spectrum components of the data signals while the second amplifier provides amplification of only higher frequency spectrum components of the data signals to compensate for losses of differing length transmission lines. Switches in filtering and frequency dependent circuits provide for operation at several data rates.

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E. C. Bender et al., "Local Distribution System", The Bell System Technical Journal, vol. 54, No. 5, May-Jun. 1975, pp. 919-942.
B. J. Dunbar et al., "Dataport-Channel Units for Digital Data System 56-kb/s Rate", The Bell System Technical Journal, vol. 61, No. 9, Nov. 1982, pp. 2741-2756.

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