Data transmission system comprising a decision feedback equalize

Details Data transmission system comprising a decision feedback equalize Data transmission system comprising a decision feedback equalize

1989-07-07

1991-03-26

Olms, Douglas W.

Pulse or digital communications

Repeaters

Testing

375 18, 375103, H03H 730, H03H 740

Patent

active

050035550

ABSTRACT:
A system for transmitting an n-level data signal (d.sub.k) at a given symbol rate 1/T comprises a data transmitter (1), a transmission channel (2) and a data receiver (3) with an equalizer (30) of the decision feedback type. By arranging this equalizer (30) for forming an estimate (c.sub.k) of a virtual m-level data signal (c.sub.k) instead of the output signal (b.sub.k) of the data transmission (1) error propagation in the equalizer (30) is considerably reduced without thereby appreciably adding to the implementation-complexity of the system.

REFERENCES:
patent: 4228517 (1980-10-01), Constant
patent: 4243956 (1981-01-01), Lemoussu et al.
patent: 4615038 (1986-09-01), Lim et al.
patent: 4709374 (1987-11-01), Farrow

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