Signaling system with low-power automatic gain control

Amplifiers – With semiconductor amplifying device – Including gain control means

Reexamination Certificate

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C330S278000

Reexamination Certificate

active

07495513

ABSTRACT:
An integrated circuit device includes a variable-gain amplifier, memory circuit and gain control update circuit. The variable-gain amplifier generates an amplified signal having an amplitude according to a gain control value that is stored, at least during a first interval, within the memory circuit. The update circuit generates an updated gain control value based on the amplified signal during the first interval, and outputs the updated gain control value to the memory circuit to be stored therein at a conclusion of the first interval.

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European Patent Office, PCT, “Invitation to pay additional fees,” PCT/US2007/066511, Dec. 10, 2007, 5 pgs.
International Search Report and Written Opinion of the International Searching Authority, PCT/US2007/066511, European Patent Office, Feb. 26, 2008, 18 pages.

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