Adaptive equalizer

Details Adaptive equalizer Adaptive equalizer

1997-06-25

1999-11-16

Chin, Stephen

Pulse or digital communications

Equalizers

Automatic

333 28R, 333 28T, 381103, H03H 730, H03H 740, H03K 5159

Patent

active

059870656

ABSTRACT:
An equalizer comprising a pair of high pass filters for receiving an input signal, each filter having gain, a first of the filters having gain which is substantially flat within its passband, a second of the filters having gain over a range of its passband which is controlled by an error signal, a differential amplifier for generating the error signal, having an output applied to a control input of the second filter, a pair of broadband amplitude peak detectors each for receiving an output signal of a respective one of the filters, apparatus for applying loop signals derived from outputs of the filters and passing though the peak detectors to corresponding inputs of the differential amplifier, apparatus for providing an offset to a loop signal derived from the output of the first filter, and apparatus for providing an output signal from the output of the second filter.

REFERENCES:
patent: 4413240 (1983-11-01), Dyke
patent: 5530769 (1996-06-01), Saitoh
patent: 5828700 (1998-10-01), Korn
patent: 5892833 (1999-04-01), Maag et al.

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