Waveform equalization apparatus

Details Waveform equalization apparatus Waveform equalization apparatus

2005-03-22

2005-03-22

Tran, Khai (Department: 2637)

Pulse or digital communications

Equalizers

C375S230000

Reexamination Certificate

active

06870880

ABSTRACT:
A waveform equalization apparatus is provided with plural TF (transversal filter) units and plural selectors, and the TF units are connected such that the construction of the whole filter becomes a real component filter when an input signal is a VSB signal while it becomes a complex filter when the input signal is a QAM signal, by switching the inputs of each selector. The waveform equalization apparatus so constructed can waveform-equalize both the VSB signal and the QAM signal, and the circuit scale of the apparatus is reduced.

REFERENCES:
patent: 5285475 (1994-02-01), Kurokami
patent: 5321723 (1994-06-01), Mizoguchi
patent: 5388062 (1995-02-01), Knutson
patent: 6154505 (2000-11-01), Konishi et al.
patent: 20010026578 (2001-10-01), Ando
patent: 06-334481 (1994-12-01), None
patent: 10-290266 (1998-10-01), None

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