Wireless key system
First Claim
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1. A key system employing wireless communication to unlock a structure, the key system comprising:
- a lock device for locking and unlocking the structure, the lock device including a first communication means for short-range wireless communication; and
a key device for including a second communication means for transmitting key information to the first communication means in the lock device by said short-range wireless communication;
wherein the lock device uses the key information received from the key device for authentication of a wireless communication link with the key device, and unlocks the structure if the authentication succeeds.
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Abstract
A wireless key system employs short-range wireless communication to transmit key information from a key device to a lock device. The lock device then authenticates the wireless communication link between the lock device and key device, and unlocks a door or other structure if authentication succeeds. The key information used for authentication may include both a unique address and a shared code. Besides unlocking a door, the system may perform other functions, such as monitoring room occupancy, switching power on and off, and taking safety measures when the key device is moved out of communication range with the lock device.
78 Citations
16 Claims
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1. A key system employing wireless communication to unlock a structure, the key system comprising:
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a lock device for locking and unlocking the structure, the lock device including a first communication means for short-range wireless communication; and
a key device for including a second communication means for transmitting key information to the first communication means in the lock device by said short-range wireless communication;
wherein the lock device uses the key information received from the key device for authentication of a wireless communication link with the key device, and unlocks the structure if the authentication succeeds. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification