Abstract: A method of displaying a schedule on a wearable additional device is provided. The method includes connecting a portable electronic device which can synchronize a schedule, receiving a user input for displaying the schedule on a display screen of the wearable additional device, and displaying the schedule received from the portable electronic device on the display screen of the wearable additional device in response to the user input, wherein the schedule is displayed in a form of sector areas corresponding to a plurality of schedule items, and each of the sector areas has an area proportional to a time of a corresponding schedule item from among a total time of schedule data which can be displayed on the display screen of the wearable additional device.

Abstract: An apparatus for saving power in an access point network is provided. The apparatus includes a communication unit that transmits/receives data to/from an access point device through a wireless short distance communication scheme; an input unit that receives a user input; and a controller that controls to determine whether there is a user input through the input unit, generates a deactivation request message including information related to service non-use of the access point device when the user input is not detected for a preset time or longer, and transmits the deactivation request message to the access point device through the communication unit.

Abstract: An apparatus for saving power in an access point network is provided. The apparatus includes a communication unit that transmits/receives data to/from an access point device through a wireless short distance communication scheme; an input unit that receives a user input; and a controller that controls to determine whether there is a user input through the input unit, generates a deactivation request message including information related to service non-use of the access point device when the user input is not detected for a preset time or longer, and transmits the deactivation request message to the access point device through the communication unit.

Abstract: A method of displaying a schedule on a wearable additional device is provided. The method includes connecting a portable electronic device which can synchronize a schedule, receiving a user input for displaying the schedule on a display screen of the wearable additional device, and displaying the schedule received from the portable electronic device on the display screen of the wearable additional device in response to the user input, wherein the schedule is displayed in a form of sector areas corresponding to a plurality of schedule items, and each of the sector areas has an area proportional to a time of a corresponding schedule item from among a total time of schedule data which can be displayed on the display screen of the wearable additional device.