Abstract: A power supply and a gate driver includes a power switching element to control current, a control circuit to output a control signal for opening or closing of the power switching element, and a gate drive circuit to open or close the power switching element in accordance with the control signal. The gate drive circuit includes a first inductive circuit connected to a supply voltage source, and a second inductive circuit connected to an input stage of the power switching element, and transfers electrical energy stored in the input stage of the power switching element, using the first and second inductive circuits. Accordingly, electrical energy supplied to the input stage of the power switching element during an ON state of the power switching element is again recovered during an OFF state of the power switching element.

Abstract: A power management apparatus includes an electric device including a plurality of operation algorithm information and power information for each operation level corresponding to each operation algorithm information, and a power management unit to receive power rate information from a power provider, determine an operation level of the electric device on the basis of the received power rate information and power information for each operation level of the electric device, and control an operation of the electric device at the determined operation level. As a result, the power management apparatus performs different operation algorithms according to power rate information, and controls power consumption of the electric device, such that energy efficiency at the user side can be maximized. In response to the changed power rate information, the currently-driven electric device and the electric device to be driven can be driven at the optimum operation level appropriate for their power consumption characteristics.

Abstract: A medical imaging apparatus and a medical image management method provide information regarding image deletion to a user upon deleting stored images, thus allowing the user to intuitively recognize a storage capacity and to select a data capacity to be deleted. The medical imaging apparatus includes a storage unit storing images, a controller calculating a residual capacity among the storage capacity of the storage unit and determining whether or the residual capacity is less than a predetermined reference value, and a display unit displaying an auto deletion popup window receiving setting regarding a reference date for deletion of the stored images, if the residual capacity is less than the predetermined reference value.

Abstract: A method for displaying a medical image includes: displaying a slide bar including a speed adjustment button; receiving a selection input and a drag input for the speed adjustment button from a user; determining a search direction and a search speed for the medical images based on the drag input; and searching for all or some of the medical images according to the determined search direction and search speed, and displaying the medical images which have been searched for.

Abstract: A power management apparatus includes an electric device including a plurality of operation algorithm information and power information for each operation level corresponding to each operation algorithm information, and a power management unit to receive power rate information from a power provider, determine an operation level of the electric device on the basis of the received power rate information and power information for each operation level of the electric device, and control an operation of the electric device at the determined operation level. As a result, the power management apparatus performs different operation algorithms according to power rate information, and controls power consumption of the electric device, such that energy efficiency at the user side can be maximized. In response to the changed power rate information, the currently-driven electric device and the electric device to be driven can be driven at the optimum operation level appropriate for their power consumption characteristics.

Abstract: A power management apparatus includes a communication unit to receive power rate information from a power provider and receive power consumption information and reservation information from an electric device, and a controller to decide an operation order on the basis of power consumption information and reservation information of the electric device, perform scheduling to decide an operation start time on the basis of the power rate information and reservation information in the operation order, and control an operation time of the electric device on the basis of the scheduling result. As a result, the power management apparatus performs optimum scheduling of an electric device using power rate information provided from the power provider, and power consumption information and reservation information of the electric device, resulting in an increase in user satisfaction.

Abstract: Disclosed are an X-ray device to inform a patient of X-ray irradiation through a sound and a method for controlling the same. The X-ray device includes an input portion to output a first-step press signal and a second-step press signal according to an operator input, a high-voltage generating portion to perform pre-heating, and to output a ready completion signal when the high-voltage generating portion completes pre-heating, a control portion to output a sound output signal when it receives both the second-step press signal output from the input portion and the ready completion signal output from the high-voltage generating portion, and a sound output portion to receive the sound output signal output from the control portion and to output a predetermined sound.

Abstract: A signal quality measuring apparatus includes a binary signal generating unit to generate a binary signal from an input signal; a level information extracting unit to extract level information from a relationship between the input signal and the binary signal using at least two window lengths; and a quality calculating unit to calculate a quality of the input signal based on the level information.

Abstract: Disclosed are an X-ray device to inform a patient of X-ray irradiation through a sound and a method for controlling the same. The X-ray device includes an input portion to output a first-step press signal and a second-step press signal according to an operator input, a high-voltage generating portion to perform pre-heating, and to output a ready completion signal when the high-voltage generating portion completes pre-heating, a control portion to output a sound output signal when it receives both the second-step press signal output from the input portion and the ready completion signal output from the high-voltage generating portion, and a sound output portion to receive the sound output signal output from the control portion and to output a predetermined sound.

Abstract: An apparatus and method for non-intrusive load monitoring (NILM). The NILM apparatus is aimed at updating reference data of a storage unit established by a generalized method to increase reliability of the storage unit. The NILM apparatus includes: a sensor unit configured to collect information about power consumed by an appliance; a controller configured to acquire a power consumption pattern of the appliance based on the collected power information, and to identify the appliance using the power consumption pattern; a display unit configured to display the result of the identification so as for a user to determine whether the result of the identification using the power consumption pattern is correct; and storage unit configured to store the result of the identification if it is determined that the result of the identification displayed on the display unit is correct.

Abstract: An energy management device which manages energy usage of at least one electric device, the energy management device including a sensor unit for detecting environment conditions including at least one of temperature, humidity, and luminance of an environment where the electric device is used; a pattern analyzing unit for analyzing an energy usage pattern of a user for using the electric device; and an energy management unit for generating energy management information for managing energy usage of the electric device based on the detected environment conditions and the analyzed energy usage pattern.