Detection circuit and apparatus based on equipotential shielding

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United States of America Patent

PATENT NO 12105127
APP PUB NO 20240036091A1
SERIAL NO

18088931

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Abstract

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Disclosed are a detection circuit and apparatus based on equipotential shielding. A first connection end of a row control circuit, configured to be connected to a row lead of an array piezoresistive sensor; a control end of the row control circuit, connected to a main control chip for outputting a control signal; a second connection end of the row control circuit, connected to a first power supply terminal; and a row pull-up resistor, with an end connected to the row lead and another end connected to a second power supply terminal. Herein, each row lead corresponds to one row pull-up resistor; each column lead of the array piezoresistive sensor is connected to an input end of an inverse adder; an output end of the inverse adder is connected to a first connection end of the column control circuit.

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Patent Owner(s)

Patent OwnerAddress
KINGFAR INTERNATIONAL INC18 ANNINGZHUANG EAST ROAD QINGHE HAIDIAN DISTRICT BEIJING 100085 BEIJING CITY BEIJING CITY 100085

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Zhao Beijing, CN 150 687
Yang, Ran Beijing, CN 40 3
Zhao, Qichao Beijing, CN 31 27

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