Capacitive data transfer in an electronic lock and key assembly

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United States of America Patent

PATENT NO 9710981
SERIAL NO

14704180

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Importance

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Abstract

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An electronic key may include a partial capacitor comprising a capacitive metal plate in communication with a processor. The capacitive metal plate of the partial capacitor is configured to form a capacitor with a corresponding capacitive metal plate of a lock when brought into proximity with the metal plate of the lock. Data may be transferred from the key to the lock using a capacitor formed by combining the two metal plates, wherein a common ground is established between the metal plate of the key and the metal plate of the lock through a parasitic capacitance present between the key and lock circuitry.

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Patent Owner(s)

  • KNOX ASSOCIATES, INC. DBA KNOX COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wolski, Keith T Phoenix, US 3 60

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