Equalizer for data receiver apparatus

Details Equalizer for data receiver apparatus Equalizer for data receiver apparatus

1995-02-28

1996-10-08

Chin, Stephen

Pulse or digital communications

Equalizers

Automatic

375229, 333 18, H04B 306

Patent

active

055639119

ABSTRACT:
In an equalizer including a plurality of delay elements, a plurality of weighting elements and an adder, the impulse response of a signal transmission channel is estimated to selectively switch over a plurality of selector switches associated with the inputs and outputs of the respective delay elements, thereby selectively changing the combination of the delay elements and the weighting elements transmitting an input signal from the channel to the adder and also changing the combination of the adder and a delay element feeding back the output of the discriminator to the adder. Thus, the number of required taps of the equalizer can be reduced, so that the power consumption and size of the equalizer can be reduced.

REFERENCES:
patent: 3306347 (1975-09-01), Motley et al.
patent: 5050186 (1991-09-01), Gurcan et al.
patent: 5173925 (1992-12-01), Mizoguchi
patent: 5214671 (1993-05-01), Nakai
Mitsuru Uesugi, et al "Adaptive Equalization in TDMA Digital Mobile Radio", IEEE Global Telecommunications Conference and Exhibition 1989 Conference Record, vol. 1 of 3, pp. 95-101, Nov. 27-30, 1989, Dallas, Texas.
R. D'Avella, et al "Adaptive Equalization in TDMA Mobile Radio Systems", 37th IEEE Vehicular Technology Conference, 1-3 Jun. 1987, pp. 385-392.

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