Automatic gain control device for a burst-mode optical receiver

Details Automatic gain control device for a burst-mode optical receiver Automatic gain control device for a burst-mode optical receiver

2005-06-28

2005-06-28

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C330S059000

Reexamination Certificate

active

06911644

ABSTRACT:
An automatic-gain-control device in an optical receiver is provided and includes a pre-amplifier for converting a current signal outputted from an optical detector to a voltage signal and a bottom level detector for detecting the bottom level from the output of the pre-amplifier, the automatic-gain-control device comprising a bottom signal-level-determining section for analyzing the bottom level from the bottom level detector and outputting a signal denoting the presence of a signal and a reset signal for initialization at intervals between packets; and an automatic-gain-control signal generating section for providing an automatic-gain-control signal by showing the presence of a signal, the automatic-gain-control-signal-generating section including a first transistor which turns on according to a signal from the bottom signal-level-determining section and a second transistor which is connected to a capacitor for charging or discharging a voltage applied by the first transistor, and the drain voltage of which becomes low when the capacitor is charged but becomes high when the capacitor is discharged.

REFERENCES:
patent: 5430766 (1995-07-01), Ota et al.
patent: 5574714 (1996-11-01), Masashi et al.
patent: 5955921 (1999-09-01), Ide et al.
patent: 6504429 (2003-01-01), Kobayashi
patent: 6587004 (2003-07-01), Ide
patent: 6597245 (2003-07-01), Yamazaki
patent: 6608710 (2003-08-01), Battagin
patent: 2002/0153958 (2002-10-01), Ide
patent: 1006653 (2000-06-01), None
patent: WO0148914 (2001-07-01), None

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