Mediatek Corporation

Deng-Fu Weng

Yu-Ting Liu

Che-Yu Chiang

Chung-Hsien Tsai

Huai-Mao Weng

An error detection and correction device includes a decision-feedback equalizer (DFE), a decision circuit, an error detection circuit, and an error correction circuit. The DFE equalizes a data signal to generate a first equalized signal. The decision circuit performs hard decision upon the first equalized signal to generate a symbol decision signal. The error detection circuit performs forward error detection at symbol positions of consecutive symbols included in the symbol decision signal to detect a head position of suspicious error that affects at least one symbol in the symbol decision signal. The error correction circuit performs error correction upon the symbol decision signal in response to the head position of the suspicious error that is detected by the error detection circuit.

Error detection and correction device capable of detecting head position of suspicious error and performing forward error propagation path tracking for providing information needed by follow-up error correction and associated method

A sequence detection device includes a decision-feedback equalizer (DFE), a combining circuit, a decision circuit, and a sequence detection circuit. The DFE processes a symbol decision signal to generate a first equalized signal. The combining circuit combines a data signal and the first equalized signal to generate a sample signal. The decision circuit performs hard decision upon the sample signal to generate the symbol decision signal. The sequence detection circuit performs sequence detection upon the data signal to generate and output a symbol sequence. Regarding the sequence detection, the sequence detection circuit selects branches for branch metric calculation according to at least the symbol decision signal.

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Hsinchu, Taiwan

Deng-Fu Weng