Electronic device and theft warning method thereof
AssigneeHon Hai Precision Industry Co., Ltd.
InventorLung Dai
Life of this patent
Estimating the term…
Abstract
A theft warning system includes a first electronic device and a second electronic device. The first electronic device is configured for transmitting monitoring signals, wherein the frequency of the monitoring signals is capable of changing according to change in the voltage supplied to the first electronic device. The second electronic device communicates with the first electronic device by receiving the monitoring signals transmitted by the first electronic device, and generating alarms when a frequency of the received monitoring signals is changed. A theft warning method applied to the electronic device is also provided.
Claims18
An electronic device, comprising:
- a transmitting module adapted to transmit a monitoring signal to a monitor device;
- and
- a power managing module adapted to supply a voltage to the transmitting module;
- wherein the transmitting module is configured to generate monitoring signals having different frequencies while being supplied with different voltages by the power managing module, and is further configured to transmit the monitoring signals having different frequencies to a monitoring device to detect the electronic device is disconnected from the power supply, thus the monitor device is capable of determining whether the electronic device is disconnected from a power supply according to the change in the monitoring signals.
A theft warning method for preventing a thief from stealing a first electronic device, comprising:
- the first electronic device generating monitoring signals having different frequencies while being supplied with different voltages by power supply;
- and
- the first electronic device transmitting the monitoring signals having different frequencies to a monitoring device to detect the electronic device is disconnected from the power supply, thus the monitoring device is capable of determining whether the electronic device is disconnected from a power supply according to the change in the monitoring signal.
A theft warning system, comprising:
- a first electronic device for generating monitoring signals having different frequencies while being supplied with different voltages by the power managing module and further transmitting the monitoring signals having different frequencies;
- and
- a second electronic device, wherein the second electronic device communicates with the first electronic device by receiving the monitoring signals having different frequencies transmitted by the first electronic device, and generating alarms when a frequency of the received monitoring signals is changed.
Dependencies are inferred from the claim text.