ADAPTIVE DECISION FEEDBACK EQUALIZER APPARATUS FOR PROCESSING INFORMATION STORED ON DIGITAL STORAGE MEDIA

摘要

the invention relates to an adaptive equalizer for the recursive processing of information, which includes a data input buffer (34), and a gain circuit (42) for the acquisition of a channel acquisition pace (40) used to generate error signals, a circuit for synchron rhythm. fund (44) are used to generate signals of du00e9ctection "sync" and polarity signals.a finite impulse response filter (sir) (36) are used to produce output signals of a linear filter, register (39), a logic circuit for updating forward reaction (ss) (38) to control the coefficient of the equalizer signal, and a memory access project dual access (rma), workforce (50) for storing the signals of the coefficient of the equalizer.a logic circuit for counter reaction (sd) (48) in response to the output signals of the linear filter, a logical circuit for updating counter reaction (52) used to adjust the values of the coefficient signals, a logic circuit (54) in the steady state rate.and a controller (46) that responds to the polarity signal and the detection signals "sync" and is used to generate signals corresponding to the data streams.