Equalizer apparatus and viterbi algorithm based decision method
AssigneeMStar Semiconductor, Inc.
InventorsChih-Cheng KUO, Wen-Chieh YANG, Tai-Lai TUNG
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Abstract
An equalizer apparatus includes a feedforward filter, a slicer circuit and a feedback circuit. The feedforward filter processes an input signal. The slicer circuit includes a Viberbi decoding circuit coupled to the feedforward filter, and performs a Viberbi algorithm based decision operation to generate a decision signal according to an output signal of the feedforward filter and a feedback signal of the feedback filter. The feedback filter generates the feedback signal according to the decision result signal.
Claims16
An equalizer apparatus, comprising:
- a feedforward filter, processing an input signal;
- a slicer circuit, comprising a Viterbi decoding circuit coupled to the feedforward filter, performing a decision operation based on a Viterbi algorithm according to an output signal of the feedforward filter and a feedback signal to generate a decision result signal;
- and
- a feedback filter, coupled to the slicer circuit, generating the feedback signal according to the decision result signal.
A decision method, applied to an equalizer apparatus, comprising:
- processing an input signal by a feedforward filter;
- performing a decision operation based on a Viterbi algorithm according to an output signal of the feedforward filter and a feedback signal to generate a decision result signal;
- and
- generating the feedback signal according to the decision result signal by a feedback filter.
Dependencies are inferred from the claim text.