Abstract: An operation method includes measuring figure of merit (FoM) values for a first group of presets having different preset types, based on equalized signals output from a transmission equalizer included in an external device adjusted based on the first group, identifying a preset type of a first preset corresponding to first FoM value which is a greatest value from among the FoM values for the first group, measuring FoM values for a second group of presets having the identified preset type, based on equalized signals output from the transmission equalizer adjusted based on the second group, determining a second preset corresponding to second FoM value which is a greatest value from among the first FoM value and the FoM values for the second group, and transmitting an equalizing setup request that controls the transmission equalizer to the external device, based on the determined second preset.

Abstract: Disclosed is a switch circuit for an ultra-high frequency band, which includes a transistor including a first terminal connected to an input stage, a second terminal connected to an output stage, and a gate terminal, an inductor connected to the transistor in parallel, between the input stage and the output stage, a variable gate driver to apply a gate input voltage to the gate terminal and, an input resistor connected between the variable gate driver and the gate terminal. The variable gate driver adjusts the gate input voltage to be in one of a first voltage level for turning on the transistor and a second voltage level for turning off the transistor. The second voltage level varies depending on a capacitance between the first terminal and the second terminal, when the transistor is in a turn-off state.

Abstract: An apparatus for estimating a camera pose according to an embodiment of the present disclosure includes a similar image searcher, a clusterer, and an estimator. The similar image searcher searches for a plurality of images similar to an input image, from among a plurality of previously-stored images, based on the input image. The clusterer creates a cluster including at least some similar images meeting predetermined conditions, from among the plurality of similar images, based on viewpoint data tagged to each of the plurality of similar images. The estimator estimates a pose of a camera that has generated the input image, based on the cluster.

Abstract: An integrated circuit device includes a lower electrode, an upper electrode, and a dielectric layer structure between the lower electrode and the upper electrode, the dielectric layer structure including a first surface facing the lower electrode and a second surface facing the upper electrode. The dielectric layer structure includes a first dielectric layer including a first dielectric material and a plurality of grains extending from the first surface to the second surface and a second dielectric layer including a second dielectric material and surrounding a portion of a sidewall of each of the plurality of grains of the first dielectric layer in a level lower than the second surface. The second dielectric material includes a material having bandgap energy which is higher than bandgap energy of the first dielectric material.

Abstract: There is provided a power supply unit supplying a standby power by sharing a switch of a main converter. The power supply unit includes: a main converter, and a standby converter. The main converter controls a current flowing in a primary side winding of a main transformer and supplies a main power through a secondary side winding of the main transformer. The standby converter controls a current flowing in a primary side winding of a standby transformer and supplies a standby power through a secondary side winding of the standby transformer, and a portion of a plurality of switches of the main converter is included in switches of the standby converter.

Abstract: A backlight unit of a liquid crystal display device supplies light to one or more corresponding pixels of a liquid crystal display panel. The backlight unit includes a plurality of blocks formed into a matrix shape. Each block includes a light emitting diode module. The blocks in a row of the matrix are driven by a same row driving signal and the blocks in a column of the matrix are driven by a same column driving signal, to adjust luminance of the light supplied to the corresponding pixels.

Abstract: There is provided a power supply unit supplying a standby power by sharing a switch of a main converter. The power supply unit includes: a main converter, and a standby converter. The main converter controls a current flowing in a primary side winding of a main transformer and supplies a main power through a secondary side winding of the main transformer. The standby converter controls a current flowing in a primary side winding of a standby transformer and supplies a standby power through a secondary side winding of the standby transformer, and a portion of a plurality of switches of the main converter is included in switches of the standby converter.

Abstract: There is provided a bridgeless power factor correction circuit that corrects a power factor by complementarily switching two switches according to phase of input power without using rectifier bridge diodes. A bridgeless power factor correction circuit according to an aspect of the invention may include: a switching unit having a plurality of switches and alternately switching input AC power; a stabilizing unit rectifying and smoothing the power switched by the switching unit; and a control unit controlling an alternate switching operation between the plurality of switches according to phases of the input power.

Abstract: The present invention provides a power supply for a server including: a PFC (Power Factor Correction) unit for meeting harmonic regulation by being connected to an input power source; a DC/DC unit including a switching stage provided with at least one switching device to switch a voltage of a link capacitor as an output voltage of the PFC unit to a predetermined operation frequency and a DC/DC stage driven by the switching stage; a DC/DC control unit for controlling the DC/DC unit by being connected to the switching device; and a frequency varying circuit unit for supplying the DC/DC control unit with a frequency control signal to adjust the operation frequency of the switching device according to load after detecting an output current of the link capacitor and acquiring load information.

Abstract: Provided is a transformer having resonant inductance, the transformer including a core that includes a first leg formed in one side thereof, a second leg which is formed in the other side thereof so as to be electromagnetically coupled to the first leg, and a third leg which is formed between the first and second legs so as to be electromagnetically coupled to the first and second legs; a primary winding that is wound around one side of the third leg; a secondary winding that is wound around the other side of the third leg so as to induce power through electromagnetic induction with the primary winding; and a resonant inductance winding that is wound around the outside of the core so as not to be magnetically induced by magnetic fluxes generated from the primary and secondary windings.

Abstract: Provided is a transformer having resonant inductance, the transformer including a core that includes a first leg formed in one side thereof, a second leg which is formed in the other side thereof so as to be electromagnetically coupled to the first leg, and a third leg which is formed between the first and second legs so as to be electromagnetically coupled to the first and second legs; a primary winding that is wound around one side of the third leg; a secondary winding that is wound around the other side of the third leg so as to induce power through electromagnetic induction with the primary winding; and a resonant inductance winding that is wound around the outside of the core so as not to be magnetically induced by magnetic fluxes generated from the primary and secondary windings.

Abstract: There is provided a bridgeless power factor correction circuit that corrects a power factor by complementarily switching two switches according to phase of input power without using rectifier bridge diodes. A bridgeless power factor correction circuit according to an aspect of the invention may include: a switching unit having a plurality of switches and alternately switching input AC power; a stabilizing unit rectifying and smoothing the power switched by the switching unit; and a control unit controlling an alternate switching operation between the plurality of switches according to phases of the input power.

Abstract: A backlight unit of a liquid crystal display device supplies light to one or more corresponding pixels of a liquid crystal display panel. The backlight unit includes a plurality of blocks formed into a matrix shape. Each block includes a light emitting diode module. The blocks in a row of the matrix are driven by a same row driving signal and the blocks in a column of the matrix are driven by a same column driving signal, to adjust luminance of the light supplied to the corresponding pixels.