Abstract: A mobile device and a method for managing the power consumption of the mobile device use geomagnetic sensors to determine if an external object is present. If an external object is approaching the mobile device, a near field communication unit is powered on and may communicate with the external object. Additional sensors may determine if the external object may be capable of NFC. Other components of the device may be powered on or off according to the presence of the external device.

Abstract: An apparatus, system, and method for providing augmented reality (AR) information of a concealed object are disclosed. The method for providing AR information of a concealed object by a terminal connectable to a server via a wired and/or wireless communication network may include acquiring an image of a real environment; defining a reference object included in the acquired image; obtaining image capturing position information about a position of the image and reference object recognition information of the defined reference object; transmitting the obtained image capturing position information and the reference object recognition information to the server; receiving information about concealed objects from the server, the concealed objects being disposed behind the reference object along or about a direction from the image capturing position to the reference object; and outputting the received information about concealed objects.

Abstract: A portable terminal and method for adjusting transmitted sound output to a wireless headset. A portable terminal includes a wireless connection setting unit to establish a connection with a wireless headset and a loopback control unit. The loopback control unit may transmit a test signal within a voice band to the connected wireless headset, receive a sound signal inputted through a microphone of the portable terminal in response to the transmitted test signal, analyze the received sound signal and adjust sound output to be transmitted to the wireless headset. A method for adjusting sound output includes establishing a connection with a wireless headset, transmitting a test signal within a voice band, receiving a sound signal inputted through a microphone of the portable terminal in response to the transmitted test signal, analyzing the sound signal, and adjusting sound output to be transmitted to the wireless headset according to the analysis result.