Abstract: The present invention relates to a method and apparatus for performing two dimension fast fourier transform for hologram processing. A method for processing a hologram according to an embodiment of the present disclosure may comprise: generating complex data by multiplying the digital image by a random phase value; performing inverse fast fourier transform (IFFT) processing on the complex data; generating pattern information by multiplying a result of the IFFT processing by a quadrant phase; and processing the hologram based on the pattern information. Here, the IFFT processing may comprise a IFFT core operation that performs row-base IFFT and column-base IFFT on the complex data, and a single shift IFFT operation that applies a predefined rule to a result of one or more of the row-based IFFT or the column-based IFFT.

Abstract: A method for generating and processing extended instructions and an apparatus using the method are provided. The method includes: transmitting, by a first device, a request packet according to an extended instruction that is generated based on a Gen-Z interface standard to a second device; and receiving, by the first device, a response packet including a result of performing the request packet from the second device. The extended instruction is generated based on a vendor-defined instruction set of the Gen-Z interface.

Abstract: A method for generating and processing extended instructions and an apparatus using the method are provided. The method includes: transmitting, by a first device, a request packet according to an extended instruction that is generated based on a Gen-Z interface standard to a second device; and receiving, by the first device, a response packet including a result of performing the request packet from the second device. The extended instruction is generated based on a vendor-defined instruction set of the Gen-Z interface.

Abstract: A distributed shared power apparatus of a data center includes a server monitor configured to monitor two or more rack mount servers that generate power by converting incoming alternating current (AC) power into direct current (DC) power and share the generated power with each other, and to collect an available total DC power of each rack mount server and a peak DC power used by each rack mount server; and a sharing controller configured to calculate surplus DC power possessed by each rack based on the collected available total DC power of each rack mount server and the peak DC power used by each rack mount server, and to control power sharing between the two or more rack mount servers based on the calculated surplus DC power of each rack.

Abstract: Disclosed herein are a system for sharing power of rack mount server and an operating method thereof. The system for sharing power of a rack mount server according to the present invention comprises: a plurality of servers installed inside a rack main frame and mounted with a power sharing backplane; a rack connected to the power sharing backplane of the plurality of servers in which a power bus bar, receiving power outputted from the connected power supply units, which are mounted in a part of or all of the plurality of servers, is mounted; and a rack power controller collecting power information of the power supply units through the power bus bar mounted inside the rack and controlling operation status of the power supply units based on the collected power information.

Abstract: A power redundancy apparatus for a rack-mounted server may include a first server that includes first and second connectors connected in parallel to the output side of a first PSU, a second server that includes third and fourth connectors connected in parallel to the output side of a second PSU, and a power connection cable for coupling any one of the first and the third connectors, the second and the fourth connectors, the first and the fourth connectors, and the second and the third connectors.

Abstract: A power control apparatus for a cluster system, includes a cluster including a plurality of nodes, each equipped with a battery; and a power control unit connected to the cluster over a network and configured to monitor power management information and performance information of the cluster and to set a power capping threshold based on the monitored power management information and performance information of the cluster. Accordingly, the power control unit enables power of the cluster to be limited by turning on and off the batteries when power of the cluster system increases up to the power capping threshold.

Abstract: Provided is a central management computing system. The central management computing system includes a plurality of terminals, and a rack system. The rack system is connected to the plurality of terminals. The rack system includes a rack power supply unit, a plurality of computers, and a switch. The rack power supply unit is mounted in a rack and converts an AC power into a plurality of DC powers to output to a plurality of DC output ports. The plurality of computers are mounted in the rack and receive the DC powers from the DC output ports. The switch is mounted in the rack and dynamically connects the computers to the terminals, respectively.

Abstract: A power control apparatus for a cluster system, includes a cluster including a plurality of nodes, each equipped with a battery; and a power control unit connected to the cluster over a network and configured to monitor power management information and performance information of the cluster and to set a power capping threshold based on the monitored power management information and performance information of the cluster. Accordingly, the power control unit enables power of the cluster to be limited by turning on and off the batteries when power of the cluster system increases up to the power capping threshold.

Abstract: A rack-mount computer mounted in a rack system connected to multiple terminals, includes: a power distribution board (PDB) for supplying each power load with DC power; a storage device connected to a backplane for receiving power from the PDB in a hotplug manner; a mainboard for receiving power from the PDB to execute computing; and an input/output card, connected to the mainboard, for processing specific input/output data.

Abstract: A hybrid power supply apparatus for data center includes: one or more power sources; and an uninterruptible rack level power supply unit supplied with an Alternating Current (AC) power from said one or more power sources, and configured to supply Direct Current (DC) power to a rack, the power supply unit supplying the DC power to the rack without interruption when supply of the power from said one or more power sources is stopped. The apparatus further includes a node provided in the rack and supplied with the DC power from the uninterruptible rack level power supply unit.

Abstract: Provided are a DC power supply device and a DC power supply system for supplying multiple DC powers having variable voltages using a power line communication (PLC). The DC power supply device includes an AC/DC converter, a DC/DC distributor, a plurality of output voltage regulators, a voltage control module, and a PLC modem. The AC/DC converter converts an inputted AC voltage into DC voltage, and the DC/DC distributor distributes the DC voltage according to number of external devices. The output voltage regulators output the distributed DC voltage to the external devices. The voltage control module controls the output voltage regulators to output voltages according to the voltage request information of the external devices. The PLC modem transmits/receives the real-time voltage request information of the external devices through a power line.

Abstract: Provided is a method of controlling a rack power supply system and a rack power supply apparatus. The system includes a plurality of computing devices mounted in a rack, and a rack power supply apparatus supplying the plurality of computing devices with direct current (DC) power. The rack power supply apparatus includes a plurality of power generating units and a control unit. The plurality of power generating units are supplied with alternating current (AC) power to generate the DC power. The control unit controls to turn on or off each power generating unit in consideration of power consumption.

Abstract: Provided are a combination rack system for discharging hot air separately, and system and method for cooling a data center. The cooling system includes a combination rack system, a discharge pipe connected to the combination rack system, a docking part for connecting the combination rack system and the discharge pipe, a discharge fan for discharging air from the combination rack system to the discharge pipe, an inlet at one side of the discharge pipe for introducing outside air into the discharge pipe, and an outlet at the other side of the discharge pipe for discharging air from the discharge pipe. The combination rack system includes racks and cooling fans. The racks are spaced with their rear sides facing each other, and the cooling fans are disposed between the racks. Therefore, air heated in the combination rack system can be discharged from the combination rack system separately from inner cold air.

Abstract: A method for converting an IBIS (Input/output Buffer Information Specification) model to a SPICE (Simulation Program with Integrated Circuit Emphasis) behavioral model by RC (resistor/capacitor) extraction is provided. In the method, when the SPICE behavioral models of pull-up and pull-down transistors being switching components of the output IBIS model is embodied, a resistance is extracted from voltage-current tables of the pull-up and pull-down transistors and a capacitance is extracted from voltage-time tables of the pull-up and pull-down transistors so that a static characteristic is modeled as a resistor and a dynamic characteristic is modeled as a capacitor.

Abstract: A method for converting an IBIS (Input/output Buffer Information Specification) model to a SPICE (Simulation Program with Integrated Circuit Emphasis) behavioral model by RC (resistor/capacitor) extraction is provided. In the method, when the SPICE behavioral models of pull-up and pull-down transistors being switching components of the output IBIS model is embodied, a resistance is extracted from voltage-current tables of the pull-up and pull-down transistors and a capacitance is extracted from voltage-time tables of the pull-up and pull-down transistors so that a static characteristic is modeled as a resistor and a dynamic characteristic is modeled as a capacitor.