| 摘要 |
An electronic device and a remote device cooperate to enable a display of an electronic device when a distance between the electronic device and the remote device is less than a transmit range and to disable the display when the distance is greater than the transmit range. Disabling the display of the electronic device may improve the security of data on display. Moreover, the disabling and enabling of the display may be carried out automatically, thereby possibly relieving the authorized user from logging out or powering-off the electronic device to secure the display. When the authorized user carries the remote device, the display may be enabled and disabled as the user moves relative to the electronic device. The display of the electronic device may be enabled when the electronic device and the remote device are located within a first distance and the display is disabled when the remote device is located a second distance from the remote device, wherein the second distance is greater than the first distance. For example, when the user carries the remote device, the display is enabled when the user is within a first distance from the electronic device. When the user carries the remote device to a second greater distance from the electronic device, the display is enabled.
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