Circuit for determining and evaluating a data signal on which a

Details Circuit for determining and evaluating a data signal on which a Circuit for determining and evaluating a data signal on which a

1997-09-02

1999-11-02

Chin, Stephen

Pulse or digital communications

Receivers

Automatic baseline or threshold adjustment

375319, 327307, H04L 2506

Patent

active

059784229

ABSTRACT:
A circuit for determining and evaluating a data signal with a disturbing direct voltage portion has a signal processor with which the direct voltage portion is determined and then subtracted from the signal. A non-linear control is provided that changes a time constant of the circuit in dependence on the signal curve.

REFERENCES:
patent: 4821292 (1989-04-01), Childress
patent: 4873702 (1989-10-01), Chiu
patent: 5132540 (1992-07-01), Adolph et al.
patent: 5175749 (1992-12-01), Ficht et al.
patent: 5408197 (1995-04-01), Miyake
patent: 5428687 (1995-06-01), Willcocks
patent: 5760629 (1998-06-01), Urabe et al.
Patent Abstracts of Japan, E-1133, Nov. 14, 1991, vol. 15, No. 448, and JP-3-190 319 (A), dated Aug. 20, 1991, K. Kubota, Pulse Waveform Detection Circuit.
Patent Abstracts of Japan, E-1316, Feb. 5, 1993, vol. 17, No. 61, and JP-4-268 809 (A), dated Sep. 24, 1992, Y. Cho, Method and Device for Extracting Pulse Signal.
Patent Abstracts of Japan, JP 63 167 519 dated Jul. 11, 1988.

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