Method for reconstructing data clocked at a symbol rate from...

Details Method for reconstructing data clocked at a symbol rate from... Method for reconstructing data clocked at a symbol rate from...

2008-03-25

2008-03-25

Payne, David C. (Department: 2611)

Pulse or digital communications

Synchronizers

Synchronizing the sampling time of digital data

C375S316000, C375S229000

Reexamination Certificate

active

07349508

ABSTRACT:
A method and a device for reconstructing data, clocked at a symbol rate, from a signal which has been distorted by transmission of a transmission link, are disclosed. The method or respectively, the device, being predominantly performed or implemented, respectively, by means of digital circuit technology in order to improve the quality of the data recovery. The method includes amplifying the signal amplitude attenuated by the transmission; filtering high-frequency interference frequencies above the symbol rate; discretizing the analog signal by means of an analog/digital converter; performing a cable approximation by means of a digitally implemented cable approximation filter in order to obtain an equalized signal; and recovering the data from the equalized signal by means of a phase-locked loop.

REFERENCES:
patent: 5293405 (1994-03-01), Gersbach et al.
patent: 5933467 (1999-08-01), Schier et al.
patent: 6067319 (2000-05-01), Copeland
patent: 6130793 (2000-10-01), Ohmori et al.
patent: 0 467 412 (1991-07-01), None
patent: XP-002224302 (1993-08-01), None
patent: 0 831 480 (1996-09-01), None

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