Abstract: An apparatus and method of managing power for a mobile device is disclosed, which can prevent an inflow of overcurrent to the device when the device is charged. The apparatus includes a state judgment unit to judge whether a battery of the mobile device is being charged, a voltage level detection unit to detect a voltage level of the battery if the battery is judged as being charged, and a control unit to control a driving of the mobile device in accordance with the detected voltage level.

Abstract: An airfoil of gas turbine engine is provided, which can improve cooling efficiency at a leading edge of the airfoil even when a location of combustion gas stagnation changes, without having to increase cooling air flowrate. The airfoil of gas turbine engine includes a cooling passage formed inside the airfoil to guide cooling air, and one or more cooling slots in elongated form, extending through the leading edge of the airfoil to a direction of the cooling passage and across a lengthwise direction of the leading edge.

Abstract: A method of controlling an operation of booting an image reproducing apparatus is provided. The method includes: receiving an input signal for powering off the image reproducing apparatus; receiving from a main processor a memory address where an operation status of the image reproducing apparatus is stored, according to the received input signal; storing the received memory address; and converting a system of the image reproducing apparatus into a sleep by the sub-processor.

Abstract: An apparatus and method of managing power for a mobile device is disclosed, which can prevent an inflow of overcurrent to the device when the device is charged. The apparatus includes a state judgment unit to judge whether a battery of the mobile device is being charged, a voltage level detection unit to detect a voltage level of the battery if the battery is judged as being charged, and a control unit to control a driving of the mobile device in accordance with the detected voltage level.

Abstract: A data transmitting/receiving method and apparatus for allocating optimal sub-bands and transmission power levels and transmitting data in a ultra wide band (UWB) communication system. The method includes receiving data through sub-bands of each band group; determining performance ranks of the sub-bands based on error rates and differences of transmitting and receiving power levels of the received data; selecting a predetermined number of sub-bands according to the performance ranks of the sub-bands; generating power level adjustment information based on measured power levels of data of the selected sub-bands; and receiving data according to the selected sub-bands and the power levels.

Abstract: A method of controlling an operation of booting an image reproducing apparatus is provided. The method includes: receiving an input signal for powering off the image reproducing apparatus; receiving from a main processor a memory address where an operation status of the image reproducing apparatus is stored, according to the received input signal; storing the received memory address; and converting a system of the image reproducing apparatus into a sleep by the sub-processor.

Abstract: A data transmitting/receiving method and apparatus for allocating optimal sub-bands and transmission power levels and transmitting data in a ultra wide band (UWB) communication system. The method includes receiving data through sub-bands of each band group; determining performance ranks of the sub-bands based on error rates and differences of transmitting and receiving power levels of the received data; selecting a predetermined number of sub-bands according to the performance ranks of the sub-bands; generating power level adjustment information based on measured power levels of data of the selected sub-bands; and receiving data according to the selected sub-bands and the power levels.

Abstract: A mobile terminal which reduces power loss, has improved characteristics for operating in a strong electric field area, and is capable of receiving broadcasting signals such as digital multimedia broadcasting (DMB) signals, includes an antenna module which operates as either a passive antenna or an active antenna, and a control unit which monitors an area where the mobile terminal is used by receiving a signal from the antenna module based on a broadcasting signal received by the antenna module, and controlling an operation of the antenna module based on the monitoring result.

Abstract: An antenna unit includes a first antenna; a second antenna receiving an electrical signal from the first antenna; and a frequency band transition unit interposed between the first antenna and the second antenna and transitioning between frequency bands receivable by the first antenna and the second antenna according to channels.

Abstract: An apparatus and method of managing power for a mobile device is disclosed, which can prevent an inflow of overcurrent to the device when the device is charged. The apparatus includes a state judgment unit to judge whether a battery of the mobile device is being charged, a voltage level detection unit to detect a voltage level of the battery if the battery is judged as being charged, and a control unit to control a driving of the mobile device in accordance with the detected voltage level.

Abstract: Provided are an apparatus and method for managing power, and more particularly, an apparatus and method for stably managing power by comparing a predetermined reference voltage level with a battery voltage level. The provided method for managing power includes (a) detecting the battery voltage level, which supplies power to a system after a predetermined period from the system being powered off, and comparing the battery voltage level with a reference voltage level, and (b) deciding the operation of the system in correspondence to the result of the comparison. According to the provided method, when the battery voltage level of the system is between the power off voltage level and the reference voltage level, the system is operated in the sleep mode using a minimum amount of power. When the battery voltage level is above the reference voltage level, the system is operated normally when a power switch is turned on. Consequently, the power and system are stably managed.

Abstract: Provided are an apparatus and method for managing power, and more particularly, an apparatus and method for stably managing power by comparing a predetermined reference voltage level with a battery voltage level. The provided method for managing power includes (a) detecting the battery voltage level, which supplies power to a system after a predetermined period from the system being powered off, and comparing the battery voltage level with a reference voltage level, and (b) deciding the operation of the system in correspondence to the result of the comparison. According to the provided method, when the battery voltage level of the system is between the power off voltage level and the reference voltage level, the system is operated in the sleep mode using a minimum amount of power. When the battery voltage level is above the reference voltage level, the system is operated normally when a power switch is turned on. Consequently, the power and system are stably managed.