Integrated circuit device and electronic instrument

Details Integrated circuit device and electronic instrument Integrated circuit device and electronic instrument

2009-02-20

2010-10-05

Nguyen, Khai M (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Nonlinear

C341S118000, C341S120000, C341S155000

Reexamination Certificate

active

07808412

ABSTRACT:
An integrated circuit device includes an amplifier circuit that receives an input signal and performs an offset adjustment corresponding to a DC offset of the input signal and a gain adjustment corresponding to an amplitude of the input signal, a filter that is provided in a subsequent stage of the amplifier circuit, a cut-off frequency of the filter being variably set corresponding to a frequency band of the input signal, an A/D converter that is provided in a subsequent stage of the filter and performs an A/D conversion process on a signal amplified by the amplifier circuit, and a control circuit that sets an offset adjustment of the amplifier circuit, a gain adjustment of the amplifier circuit, and the cut-off frequency of the filter.

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New U.S. Patent Application filed on Feb. 20, 2009 in the name of Fukuzawa et al.
U.S. Appl. No. 12/338,547, filed Dec. 18, 2008 in name of Fukuzawa et al.
U.S. Appl. No. 12/343,796, filed Dec. 24, 2008 in name of Fukuzawa et al.

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