Sensor device including a capacitive charge output device connected to an A/D converter

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United States of America Patent

PATENT NO 11196441
APP PUB NO 20180262204A1
SERIAL NO

15979562

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Abstract

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A sensor device includes an A/D converter including an adder that computes a difference between an analog input signal and a predicted value, the adder includes a capacitive adder defined by a series circuit including a capacitive charge output device and a capacitor. A capacitive component in the charge output device defines a portion of the capacitance of the capacitive adder. A digital prediction filter generates the predicted value based on an output from a quantizer. The capacitive adder computes the difference between the analog input signal from the charge output device and the predicted value. The quantizer quantizes and encodes the difference. The A/D converter performs a Δ modulation on the analog input signal which is converted into a digital signal.

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Patent Owner(s)

Patent OwnerAddress
MURATA MANUFACTURING CO LTDKYOTO JAPAN KYOTO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsuya, Yasuyuki Sagamihara, JP 12 254
Takase, Yasuhide Nagaokakyo, JP 10 9

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