Digital data slicer

Details Digital data slicer Digital data slicer

1997-09-10

1999-10-26

Chin, Stephen

Pulse or digital communications

Pulse code modulation

Differential

375242, 341 63, 341 67, 341 76, 369 59, 3401462, H04B 1404, H04B 1406, H03M 746, H03M 730

Patent

active

059740884

ABSTRACT:
A digital data slicer which can allow the digital sum value (DSV) of the sliced signal to approach zero is provided. The digital data slicer includes a comparator for comparing the input signal with an analog reference slice level to thereby generate the sliced signal. A DSV calculator is used to obtain the DSV of the sliced signal. A DSV processor is used to compare the DSV with a predefined tolerance window to thereby generate a digital correcting signal. A digital-to-analog (D/A) converter is then used to convert the digital correcting signal into an analog form which either raises or lowers the reference slice level to the comparator. This feedback control goes on until the DSV is within the range defined by the tolerance window.

REFERENCES:
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patent: 4501000 (1985-02-01), Immink et al.
patent: 5166958 (1992-11-01), Shimokoriyama et al.
patent: 5317313 (1994-05-01), Kasser
patent: 5548284 (1996-08-01), Hiramatsu
patent: 5673243 (1997-09-01), Yanagi et al.
patent: 5831951 (1998-11-01), Kamioka et al.

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