System and method for preventing the unauthorized use of a mobile communication device
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United States of America Patent
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-
Jan 9, 2001
Grant Date -
N/A
app pub date -
Nov 26, 1997
filing date -
May 31, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention provides for the disabling of a communication device even when information has been obtained unlawfully which is required for communication, such as unique identification information of a communication device (SID) and a unique identification information of a subscriber (PID). The invention provides for the storing as at least a unique identification information of a communication device, a unique identification information of subscriber, and a first identification information derived from the unique identification information of the communication device and the unique identification information of the subscriber into a memory area of mobile communication device; derive a second identification information from the unique identification information of the communication device and the unique identification information of the subscriber being stored, at a time when using the communication device, comparing the first identification information being stored in the communication device and the second identification information and permitting a use of the communication device when the first and second identification information have been matched.
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