Abstract: A system and method for providing location-based personalized information by using user location history information, whereby battery consumption of a computing device is reduced. The computing device includes: a location finder configured to obtain user location information of a user of the computing device; a display configured to display information indicating a route of the user of the computing device; and a controller configured to track a location of the user by controlling the location finder as the controller senses a change in the location of the user based on the obtained user location information, obtain information corresponding to an initial route of the user based on the tracked location of the user, detect a predicted route of the user from user location history information based on the information corresponding to the initial route of the user, and display on the display unit the predicted route.

Abstract: A device and method of managing power are provided. The device includes a user input unit configured to receive a user input from a user, an output unit configured to output information based on the user input, and a controller configured to, when the user input is not received, determine whether or not an out-focus status in which the user does not use the device has started, determine, when it is determined that the out-focus status has started, a period in which the out-focus status is to be maintained based on information about a probability of the out-focus status according to a context of the device, and stop, when the period in which the out-focus status is to be maintained is equal to or greater than a reference time period, an application executed in the device.

Abstract: A method of determining a distance between devices, including receiving, by a device, a first signal from a target device, the first signal being associated with a first intensity; receiving, from a reference device located at a predetermined distance from the target device, intensity information corresponding to a second intensity associated with a second signal received by the reference device from the target device; and determining a distance between the device and the target device based on the first intensity and the intensity information corresponding to the second intensity.

Abstract: Provided is a method of providing a location-based social search service. The method includes collecting, from a social network system, one or more pieces of visit history information including at least one of visit information of social search service users in association with at least a place and review data associated with the place, and storing the collected information; selecting a topic for each topic category from the visit history information; when a location-based query is received from at least one of the users, extracting a topic for each topic category from the location-based query; analyzing, for each topic category, a relationship between the topic extracted from the location-based query and the topic selected from the visit history information, and selecting at least one of the users as an expert.

Abstract: A system and method for providing location-based personalized information by using user location history information, whereby battery consumption of a computing device is reduced. The computing device includes: a location finder configured to obtain user location information of a user of the computing device; a display configured to display information indicating a route of the user of the computing device; and a controller configured to track a location of the user by controlling the location finder as the controller senses a change in the location of the user based on the obtained user location information, obtain information corresponding to an initial route of the user based on the tracked location of the user, detect a predicted route of the user from user location history information based on the information corresponding to the initial route of the user, and display on the display unit the predicted route.

Abstract: A system for providing a life log service and a method of providing the life log service. The computing device for providing the life log service includes: a display which displays a map in a first display area and which displays like content in a second display area; and a processor including a content generator which generates the life content of a user based on a current position of the computing device, and a controller, which, in response to the generated live content, updates the second display area in real time to display the generated life content and updates the map in the first display area to display a path synchronized with the generated life content.

Abstract: Disclosed is an apparatus for recognizing an earphone of a portable terminal that includes an interface unit which is connected to the earphone; a controller which performs a switch operation by determining whether a switch key of the earphone is inputted, according to a change of a current of a first port and a voltage of a second port, when the connection of the earphone is sensed; and an audio processing unit that outputs an audio signal to the earphone under the control of the controller.

Abstract: A method of managing user purchase information includes parsing information related to a product from a user uploaded data, comparing the parsed information with a purchase data of the product by the user, and linking an indicator to the user uploaded data according to the comparison and a method of providing user purchase data in user equipment. The method also includes purchasing and paying for a product with the user equipment, and posting payment information about the product on a social networking service (SNS).

Abstract: Disclosed is an apparatus for recognizing an earphone of a portable terminal that includes an interface unit which is connected to the earphone; a controller which performs a switch operation by determining whether a switch key of the earphone is inputted, according to a change of a current of a first port and a voltage of a second port, when the connection of the earphone is sensed; and an audio processing unit that outputs an audio signal to the earphone under the control of the controller.

Abstract: Provided are a method and apparatus for constructing a peer-to-peer (P2P) overlay network.