Abstract: The arrangement method of superconducting wires of a superconducting cable, includes: in a case where a refrigerator is installed at one of terminal structures provided on both sides of a superconducting cable, and a cooling fluid is passed through the superconducting cable by a pump for cooling, setting the numbers of superconducting wires of sections of the superconducting cable installed between the terminal structures on both the sides to be different depending to temperatures of the sections, wherein the numbers of superconducting wires are increased from the section of the superconducting cable having the lowest temperature to the section thereof having the highest temperature while maintaining a current-carrying capability.

Abstract: Provided is a superconducting cable device including: a first superconducting cable and a second superconducting cable; an intermediate connection box which connects the first and second superconducting cables to each other; and a cooling device which causes a coolant to flow inside the intermediate connection box in a lengthwise direction of the intermediate connection box, wherein a cable connection portion for connecting the first and second superconducting cables to each other is provided in the intermediate connection box. In an uncooled state, the cable connection portion is disposed to be eccentric from a center line in the lengthwise direction of the intermediate connection box in a direction in which the coolant flows.

Abstract: Provided is a superconducting cable device including: a first superconducting cable and a second superconducting cable; an intermediate connection box which connects the first and second superconducting cables to each other; and a cooling device which causes a coolant to flow inside the intermediate connection box in a lengthwise direction of the intermediate connection box, wherein a cable connection portion for connecting the first and second superconducting cables to each other is provided in the intermediate connection box. In an uncooled state, the cable connection portion is disposed to be eccentric from a center line in the lengthwise direction of the intermediate connection box in a direction in which the coolant flows.

Abstract: The arrangement method of superconducting wires of a superconducting cable, includes: in a case where a refrigerator is installed at one of terminal structures provided on both sides of a superconducting cable, and a cooling fluid is passed through the superconducting cable by a pump for cooling, setting the numbers of superconducting wires of sections of the superconducting cable installed between the terminal structures on both the sides to be different depending to temperatures of the sections, wherein the numbers of superconducting wires are increased from the section of the superconducting cable having the lowest temperature to the section thereof having the highest temperature while maintaining a current-carrying capability.

Abstract: Provided is a superconducting cable configured to improve superconductivity by increasing reflectivity of cryostats and enhancing cooling performance. The superconducting cable includes: a core provided with a conductor; and a cryostat surrounding a periphery of the core. A material of the cryostat is aluminum or an aluminum alloy and a surface roughness of the cryostat is 30 microns or less in terms of RMS value.

Abstract: To manage power of battery packs, charging currents and remaining capacities of the battery packs may be detected. An order for charging and discharging the battery packs may be determined based on the charging currents. The battery packs may be charged or discharged in the determined order based on whether an external voltage is detected. The battery packs may be charged using charging voltages with associated currents corresponding to the detected charging currents.

Abstract: An apparatus and method for controlling fan operation in a system having a fan are provided. The apparatus includes a temperature sensor configured to detect at least one internal temperature of the system as a whole or component devices thereof, a power supply configured to convert one or more different input powers into predetermined voltage levels and supply the voltage levels to the fan, and a controller connected to the temperature sensor and the power supply and configured to control operation of the fan, wherein the controller controls fan operation based on a fan control mode selected by a user and the sensed at least one internal temperature.

Abstract: A computer system includes an operating system, a CPU operatively connected with the operating system, and a power management unit for adjusting throttling duty to regulate CPU speed according to a power management mode of the CPU, wherein the power management unit is configured for determining the power management mode. The throttling duty can be adjusted based upon a thermal mode of the CPU, for example, based on the system temperature or the residual capacity of a battery.

Abstract: A portable computer and a method of controlling a power saving mode of the portable computer, in which an embedded controller directly turns off system power without system wake up operation in a process of turning off the system power or switching a power saving mode when battery power is decreased. The computer includes a control unit for notifying whether a power saving mode is a hybrid sleep mode when the portable computer enters the power saving mode; and an embedded controller for detecting whether the remaining amount of a battery decreases below a threshold value or a predetermined period of time has passed after the computer enters the power saving mode to perform hibernation or turn off system power, if the power saving mode notified from the control unit is the hybrid sleep mode.

Abstract: Embodiments of an apparatus and method for controlling system operation based on battery state are provided. The apparatus includes a first memory for storing an operating system (OS) to operate and control the system, a microcomputer for controlling the system operation based on battery discharge/charge state information, and a second memory for storing an application containing a microcomputer interface information to control the system operation that is changed depending on the battery state under the OS. An operation based on battery residual quantity is set to an operating system (OS) and a microcomputer. Then, if a user changes operation information based on the battery residual quantity, the changed operation information is applied to the microcomputer through at least one of the OS and an application, and the system is operated based on the changed operation system.

Abstract: The present invention relates to an apparatus and a method for updating firmware of an embedded controller (EC) constituted in portable machinery. Embodiments of the present invention can set identification information for maintaining a system power-on state before performing operations of updating the firmware of the embedded controller. In the ROM area of the embedded controller, a new firmware file is updated and recorded. Then, the new firmware file can be updated and recorded in the RAM area of the embedded controller after system re-start or while maintaining the system power and without system re-start responsive to the identification information.

Abstract: To manage power of battery packs, charging currents and remaining capacities of the battery packs may be detected. An order for charging and discharging the battery packs may be determined based on the charging currents. The battery packs may be charged or discharged in the determined order based on whether an external voltage is detected. The battery packs may be charged using charging voltages with associated currents corresponding to the detected charging currents.

Abstract: A power-saving control apparatus and method are provided for a portable computer to save power by lowering a speed of a central processing unit (CPU) when a lid of the portable computer is closed. A lid switch input circuit may generate a switch-on signal when the lid of the portable computer is closed so that a lid switch is on, and the lid switch input unit may generate a switch-off signal when the lid of the portable computer is opened so that the lid switch is off.

Abstract: Disclosed is an apparatus and method for controlling driving of an auxiliary device in a computer. The computer would include an operating system (OS) having at least one of a keyboard controller driver and a system BIOS that controls the enabled/disabled status of an internal auxiliary device based on the attachment status of an external auxiliary device. The internal auxiliary device may be a keyboard, a touch pad, or a pointing stick. The external auxiliary device may be a USB mouse. A method embodying the invention may include the steps of: periodically checking whether an external auxiliary device has been attached/detached to/from the computer, and disabling or enabling driving of the internal device or the external device depending on the checking results.

Abstract: Disclosed are embodiments of a method and an apparatus for controlling a display mode in a portable computer. When a display mode of a liquid crystal display (LCD) is changed such as in response to a user's request, information of the changed display mode is stored being associated with a system mode. When a system is rebooted or the system mode is changed in a state in which the display mode information is stored, display mode information stored being associated with a current system mode is read, and the LCD display mode is set to an arbitrary display mode corresponding to the read display mode information. And, when a change of the LCD display mode is requested by the user, a wallpaper image for the requested display mode can be retrieved from among wallpaper images for display modes stored separately and displayed on the LCD.

Abstract: Disclosed are embodiments of a method and an apparatus for controlling a display mode in a portable computer. When a display mode of a liquid crystal display (LCD) is changed such as in response to a user's request, information of the changed display mode is stored being associated with a system mode. When a system is rebooted or the system mode is changed in a state in which the display mode information is stored, display mode information stored being associated with a current system mode is read, and the LCD display mode is set to an arbitrary display mode corresponding to the read display mode information. And, when a change of the LCD display mode is requested by the user, a wallpaper image for the requested display mode can be retrieved from among wallpaper images for display modes stored separately and displayed on the LCD.

Abstract: Disclosed is an apparatus and method for controlling driving of an auxiliary device in a computer. The computer would include an operating system (OS) having at least one of a keyboard controller driver and a system BIOS that controls the enabled/disabled status of an internal auxiliary device based on the attachment status of an external auxiliary device. The internal auxiliary device may be a keyboard, a touch pad, or a pointing stick. The external auxiliary device may be a USB mouse. A method embodying the invention may include the steps of: periodically checking whether an external auxiliary device has been attached/detached to/from the computer, and disabling or enabling driving of the internal device or the external device depending on the checking results.

Abstract: Methods and apparatus for adjusting the brightness level of a display (LCD) can separately store index information corresponding to each brightness level of the LCD according to which of a plurality of types of power are being used. Further, when the type of power of the system is changed, the index information corresponding to the power being used (e.g., changed power) is preferably read in order to adjust the brightness level of the LCD. Therefore, it is possible to maintain a preadjusted brightness level of the LCD by a user in a corresponding power mode.

Abstract: Disclosed are embodiments of a method and an apparatus for controlling a display mode in a portable computer. When a display mode of a liquid crystal display (LCD) is changed such as in response to a user's request, information of the changed display mode is stored being associated with a system mode. When a system is rebooted or the system mode is changed in a state in which the display mode information is stored, display mode information stored being associated with a current system mode is read, and the LCD display mode is set to an arbitrary display mode corresponding to the read display mode information. And, when a change of the LCD display mode is requested by the user, a wallpaper image for the requested display mode can be retrieved from among wallpaper images for display modes stored separately and displayed on the LCD.

Abstract: Disclosed are embodiments of a method and an apparatus for controlling a display mode in a portable computer. When a display mode of a liquid crystal display (LCD) is changed such as in response to a user's request, information of the changed display mode is stored being associated with a system mode. When a system is rebooted or the system mode is changed in a state in which the display mode information is stored, display mode information stored being associated with a current system mode is read, and the LCD display mode is set to an arbitrary display mode corresponding to the read display mode information. And, when a change of the LCD display mode is requested by the user, a wallpaper image for the requested display mode can be retrieved from among wallpaper images for display modes stored separately and displayed on the LCD.