CAPACITIVE DATA TRANSFER IN AN ELECTRONIC LOCK AND KEY ASSEMBLY
First Claim
Patent Images
1. An electronic key comprising:
- a housing;
a power source disposed within the housing;
a processor in communication with the power source; and
a partial capacitor comprising a first capacitive metal plate in communication with the processor, the first capacitive metal plate of the partial capacitor configured to form a capacitor with a corresponding second capacitive metal plate of a lock when brought into proximity with the second capacitive metal plate of the lock;
wherein the processor is programmed to transfer data signals at least partially by using the partial capacitor.
1 Assignment
0 Petitions
Accused Products
Abstract
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.
19 Citations
27 Claims
-
1. An electronic key comprising:
-
a housing; a power source disposed within the housing; a processor in communication with the power source; and a partial capacitor comprising a first capacitive metal plate in communication with the processor, the first capacitive metal plate of the partial capacitor configured to form a capacitor with a corresponding second capacitive metal plate of a lock when brought into proximity with the second capacitive metal plate of the lock; wherein the processor is programmed to transfer data signals at least partially by using the partial capacitor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method for communicating with an electronic lock, the method comprising:
-
capacitively coupling a first metal plate of a key assembly with a second metal plate of a lock assembly; and transmitting data from the key assembly to the lock assembly by applying a data signal to the first metal plate. - View Dependent Claims (16, 17, 18, 19)
-
-
20. An electronic lock comprising:
-
a housing; a locking mechanism disposed within the housing; a processor disposed within the housing; and a partial capacitor comprising a first capacitive metal plate in communication with the processor, the first capacitive metal plate configured to form a capacitor with a corresponding second capacitive metal plate of a key when brought into proximity with the second capacitive metal plate of the key; wherein the processor is programmed to process data signals received through the partial capacitor to actuate the locking mechanism. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
-
Specification