| 摘要 |
A security system of the type having a fixed terminal and a portable unit such as a remote control. The portable unit produces an activation signal based on active intervention by a user and a measurement signal based on the measurement of a biometrical signature of the user. A control signal is generated when the activation and measurement signals are both generated within a specified temporal window and the measured biometrical signature corresponds to that of an authorized user. Thus, there is a reduced chance of both the security system being disarmed by an ill-intentioned third party and of untimely or inadvertently disarming the system.
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