Telecommunications – Radiotelephone system – Security or fraud prevention
Reexamination Certificate
2011-07-12
2011-07-12
Ly, Anh-Vu (Department: 2472)
Telecommunications
Radiotelephone system
Security or fraud prevention
Reexamination Certificate
active
07979052
ABSTRACT:
A key management device for communicating with relay devices is provided, and one of the relay devices, which is communicating with a communication device based on master key information, transmits the master key information to the key management device. If the communication with the communication device has been enabled, the other relay devices makes a request to the key management device for transmission of the master key information. Then, the key management device transmits the master key information, which has been received from the one of the relay devices, to the other relay device, and then the other relay device can communicates with the communication device using the received master key information.
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Fujimoto Shingo
Matsukura Ryuichi
Okuyama Satoshi
Sumioka Motoshi
Fujitsu Limited
Fujitsu Patent Center
Ly Anh-Vu
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