Data detection circuit

Details Data detection circuit Data detection circuit

1998-11-23

2000-04-25

Chin, Stephen

Pulse or digital communications

Receivers

Automatic gain control

330282, 330 86, 375316, 375318, H04L 2708

Patent

active

060552832

ABSTRACT:
A pre-amplifier circuit, which may be used in a variety of data recovery circuits to accurately recover data transmissions, includes an input regulatory circuit, a feedback circuit, and an amplifier. The input regulatory circuit regulates the magnitude of the data signal provided to the amplifier based on feedback signals from a feedback circuit. For low level data signals, the input regulatory circuit provides a full, or almost full, representation of the data signal to the amplifier for amplification. But, when the data signal levels increase, the input regulatory circuit attenuates, based on the feedback signals, the data signals more and more before providing them to the amplifier, such that the output of the amplifier stays within a certain range.

REFERENCES:
patent: 5231395 (1993-07-01), Irwin et al.
patent: 5570064 (1996-10-01), Sugawara
patent: 5592165 (1997-01-01), Jackson et al.
patent: 5635874 (1997-06-01), Perrot
patent: 5661437 (1997-08-01), Nishikawa et al.
patent: 5793254 (1998-08-01), O'Connor
patent: 5892800 (1999-04-01), Rybicki et al.

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