| 摘要 |
A wearable identification token includes a housing, a transmitter for transmitting user identification data to a proximity reader, a switch for switching the identification token between an enabled state and a disabled state, and a sensor for detecting removal of the housing from the user's body. The switch is responsive to the sensor to switch the identification token from the enabled state to the disabled state in response to the housing being removed from the user's body, and is responsive to a signal received from a trusted electronic device to switch the identification token from the disabled state to the enabled state.
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