Decision-feedback equalizer capable of producing an...

Details Decision-feedback equalizer capable of producing an... Decision-feedback equalizer capable of producing an...

H - Electricity

04

B

H04B 3/04 (2006.01) H03H 17/02 (2006.01) H04L 25/03 (2006.01)

Patent

CA 2078049

In a decision-feedback equalizer for use in combination with a demodulator (13) to equalize a demodulated signal into an equalized signal through a transversal filter (15), the transversal filter filters the demodulated signal into a filtered signal in accordance with a plurality of controllable tap gains. The filtered signal is processed into the equalized signal on the basis of the binary level of the filtered signal. The controllable tap gains are produced dependent on the demodulated and the equalized signal and a plurality of parameters. A delivering circuit (38) delivers limiting values as the parameters to the transversal filter when the demodulator is put in a synchronization state. The delivering circuit delivers additional values as the parameters to the transversal filter when the demodulator is put out of the synchronization state.

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