Decision feedback equalization circuit

Details Decision feedback equalization circuit Decision feedback equalization circuit

1995-06-20

1997-01-14

Chin, Stephen

Pulse or digital communications

Equalizers

Automatic

375346, 375350, 36472416, 3647242, H03H 730

Patent

active

055947565

ABSTRACT:
A decision feedback equalization circuit which can be operated at a high speed with a low cost as well as a high-speed digital data communication system and a high-speed digital data recording system using the equalization circuit are disclosed. The decision feedback equalization circuit has data memories which correspond to the number of available values in decision result and in which feedback signals corresponding to all the next decision results are previously prepared as candidates so that a suitable one of the feedback signal candidates is selected and fed back based on the obtained decision result, thus realizing high-speed operation of a feedback loop.

REFERENCES:
patent: 5267265 (1993-11-01), Mizoguchi
patent: 5367536 (1994-11-01), Tsujimoto
patent: 5398259 (1995-03-01), Tsujimoto
IEEE Transactions on Magnetics, vol. 24, No. 1, Jan. 1988, "Decision Feedback Equalization for Magnetic Recording Systems", p. 683.
IEEE Transactions on Magnetics, vol. 26, No. 6, "Performance Comparison of Detection Methods in Magnetic Recording", Nov. 1990, pp. 3155-3172.

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