Digital DC restoration device

Details Digital DC restoration device Digital DC restoration device

1998-04-14

2000-09-12

Chin, Stephen

Pulse or digital communications

Receivers

Automatic baseline or threshold adjustment

H01L 2506, H01L 2510

Patent

active

061188301

ABSTRACT:
This device includes a main signal path in which a capacitor is included upstream of an analog/digital converter in which a conversion is triggered by a clock. According to the invention, the output of the analog/digital converter is connected to inputs of several threshold detectors which have positive detection thresholds in a progression proportional to consecutive powers of two, and several other threshold detectors which have negative detection thresholds which also progress proportionally to consecutive powers of two, which threshold detectors control current generators whose currents are added together into the capacitor.

REFERENCES:
patent: 4257126 (1981-03-01), Theall, Jr.
patent: 4847865 (1989-07-01), Larson
patent: 4873702 (1989-10-01), Chiu
patent: 5146476 (1992-09-01), Whitehead et al.
patent: 5539779 (1996-07-01), Nagahori
patent: 5796781 (1998-08-01), DeAndrea et al.
patent: 5857003 (1999-01-01), Geiger et al.

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