Key control device and key control method

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United States of America Patent

PATENT NO 12032751
APP PUB NO 20230152905A1
SERIAL NO

17641131

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Abstract

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A key control device and a key control method are disclosed. The key control device includes: an encoder circuit including a first output terminal and a second output terminal and configured to output a first voltage signal and a second voltage signal through the first output terminal and the second output terminal respectively, under triggering of a rotational operation; a first interface extension circuit configured to receive the first voltage signal and the second voltage signal, and generate an interrupt signal and voltage state transition data in response to the first voltage signal or the second voltage signal output by the encoder circuit; and a main control circuit configured to determine a rotation direction of the rotation operation according to the interrupt signal and the voltage state transition data.

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Patent Owner(s)

Patent OwnerAddress
BOE TECHNOLOGY GROUP CO LTD100015 NO 10 JIUXIANQIAO ROAD BEIJING CHAOYANG DISTRICT BEIJING CITY BEIJING CITY 100015

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Xinyi Beijing, CN 30 15
Li, Liang Beijing, CN 515 3124
Wang, Zhimao Beijing, CN 6 1

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