Gain adjustment method, gain adjustment circuit, and optical...

Details Gain adjustment method, gain adjustment circuit, and optical... Gain adjustment method, gain adjustment circuit, and optical...

2005-10-18

2008-05-20

Pascal, Robert J. (Department: 2817)

Amplifiers

Signal feedback

Plural amplifier channels

C330S086000, C330S133000, C330S140000

Reexamination Certificate

active

07375584

ABSTRACT:
A gain adjustment circuit includes a gain varying device for varying the gain of an input signal; and a detection device for detecting a variable output signal of the gain varying device, wherein the detection output signal of the detection device is fed back to the gain varying device.

REFERENCES:
patent: 5214393 (1993-05-01), Aihara
patent: 6639466 (2003-10-01), Johnson
patent: 7177244 (2007-02-01), Hashimoto
patent: 2002-117536 (2002-04-01), None

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