Abstract: Disclosed are a wireless power system including a self-regulation rectifier and a communication method thereof. The wireless power system according to an embodiment includes a reception resonator which magnetically resonates with a wireless power transfer unit through a reception antenna, a self-regulation rectifier which rectifies a power signal in a form of an alternating current (AC) received from the reception resonator into a power signal in a form of a direct current (DC) and self-regulates a rectifier output voltage without a separate power converter, and a frequency adjuster which changes a resonance frequency of the reception resonator for in-band communication with the wireless power transfer unit, wherein a reception antenna current is changed according to a change in the resonant frequency, and the reception resonator transmits a communication signal to the wireless power transfer unit through induction of the changed reception antenna current.

Abstract: A white LED module includes a circuit board, at least one first LED light source on the circuit board and emitting a first white light having a first color temperature, at least one second LED light source on the circuit board and emitting a second white light having a second color temperature, higher than the first color temperature, a wiring structure in the circuit board to selectively drive the at least one first LED light source and the at least one second LED light source, and a transparent encapsulant on the circuit board, to cover the at least one first LED light source and the at least one second LED light source. The transparent encapsulant includes a transparent resin and a light-scattering powder in the transparent resin.

Abstract: A magnetic resonance wireless power transmission device capable of adjusting resonance frequency is disclosed. A wireless power transmission device according to an embodiment of the present invention comprises: a power amplifier for amplifying a wireless power signal using a driving frequency signal; a resonator for configuring a resonance tank and wirelessly transmitting, through magnetic resonance, the wireless power signal output from the power amplifier using a resonance frequency of the resonance tank; and a resonance control unit for controlling a duty ratio using a frequency applied to the resonator or a frequency signal generated by the resonator and adjusting the resonance frequency of the resonator.

Abstract: A wireless power receiver is disclosed. The wireless power receiver according to an embodiment of the present invention comprises: a resonator for receiving wireless power; a rectifier for converting alternating current power received from the resonator to direct current power and supplying output power to a load; and a control unit for adjusting a resonant frequency of the resonator to directly control the output power of the rectifier supplied to the load.

Abstract: Semiconductor device having less defects in a gate insulating film and improved reliability and methods of forming the semiconductor devices are provided. The semiconductor devices may include a gate insulating film on a substrate and a gate electrode structure on the gate insulating film. The gate electrode structure may include a lower conductive film, a silicon oxide film, and an upper conductive film sequentially stacked on the gate insulating film. The lower conductive film may include a barrier metal layer.

Abstract: Semiconductor devices and methods for fabricating the same are provided. A semiconductor device may include a substrate including first and second regions, a first interface film disposed on the substrate in the first region, a second interface film disposed on the substrate in the second region, a dielectric film disposed on the first and second interface films, a first metal film disposed on the dielectric film in the first region, and a second metal film disposed on the dielectric film in the second region. The first and second interface films may comprise an oxide of the substrate, the first and second metal films may comprise different materials, and the first and second interface films may have different thicknesses. Channels may be provided in the first and second regions, and the channels may be fin-shaped or wire-shaped. The metal films may have different oxygen content.

Abstract: Provided are a seal tape and a secondary battery. The seal tape for adhering an electrode assembly includes a pressure-sensitive adhesive layer including a cured product of a pressure-sensitive adhesive composition including a polymer including a polar functional group-containing monomer as a polymerization unit, and is expanded in contact with an electrolyte solution to be detached from the electrode assembly, and therefore, isotropic volume expansion and contraction of the electrode assembly may be induced by repeated charge and discharge of a secondary battery and a disconnection phenomenon in which an electrode is disconnected may be prevented.

Abstract: The present invention related to an apparatus and a method for calculating basic electricity charges, being capable of periodically collecting electricity usage information for each household by using a smart meter provided in an aggregate building in which power reception equipment is installed, calculating the monthly or yearly maximum demand power for each household using the collected electricity usage information, and then, automatically calculating the basic electricity charges for each household with respect to the basic electricity charges of an entire aggregate building in consideration of the calculated maximum demand power for each household obtained and a ratio of ownership shares for each household based on the ownership shares for each resident household.

Abstract: Semiconductor device having less defects in a gate insulating film and improved reliability and methods of forming the semiconductor devices are provided. The semiconductor devices may include a gate insulating film on a substrate and a gate electrode structure on the gate insulating film. The gate electrode structure may include a lower conductive film, a silicon oxide film, and an upper conductive film sequentially stacked on the gate insulating film. The lower conductive film may include a barrier metal layer.

Abstract: A regulator includes a first resistor and a second resistor that are connected between a ground node and an output node, an amplifier that outputs an amplification voltage by comparing a reference voltage to a feedback voltage between the first resistor and the second resistor, and amplifying a difference between the reference voltage and the feedback voltage, an analog-to-digital converter that converts the amplification voltage to a digital code, and a plurality of transistors that are connected between a power node supplied with a power supply voltage and the output node and which adjusts a current being supplied to the output node in response to the digital code.

Abstract: A storage device includes at least one nonvolatile memory device including a plurality of memory blocks, the nonvolatile memory device configured to store user data and meta data in the plurality of memory blocks, and a device controller configured to control the nonvolatile memory device, to calculate a user cost corresponding to a time of memory accesses to the user data to be performed at garbage collection with respect to each of the plurality of memory blocks, to calculate a meta cost corresponding to a time of memory accesses to the meta data to be performed at the garbage collection with respect to each of the plurality of memory blocks, to select a victim block among the plurality of memory blocks based on the user cost and the meta cost, and to perform the garbage collection on the victim block.

Abstract: Provided are a touch screen controller, a touch screen system including the touch screen controller, and a method of operating the touch screen controller. The touch screen controller includes a driving circuit configured to output a first driving signal in a first touch mode and a second driving signal in a second touch mode, the first touch mode including a driving period and a subsequent sensing period; and a boosting circuit configured, in the first touch mode, to generate a first voltage by performing an internal switching operation based on an input voltage and a first switching signal, and configured to provide the first voltage to the driving circuit, wherein the first switching signal has a first frequency in the driving period and a second frequency different from the first frequency in the subsequent sensing period.

Abstract: A wireless power receiver is disclosed. The wireless power receiver comprises: a resonance tank for receiving magnetic resonance-type wireless power; a rectifier including a diode bridge and a first switch connected to both ends of any one diode for forming the diode bridge, so as to rectify wireless power received by the resonance tank and supply the rectified wireless power to a load; and a controller controlling the first switch so as to operate the rectifier as a full-wave rectifier or a half-wave rectifier.

Abstract: An apparatus for automated electricity demand response based on online trading of demand side resources. The apparatus includes a communication unit, a demand response management system, an utility grid management system, and a demand response resources in use; a database; and a demand response processing unit configured to receive an electricity demand reduction instruction message according to a certain demand response service contract condition in the demand response management system.

Abstract: A memory device and a dynamic garbage collection method thereof are provided. The method includes receiving a minimum operating speed, ascertaining a reference valid page count ratio (VPC), using a maximum operating speed, the minimum operating speed, and a garbage collection speed, the reference VPC ratio being ascertained by the following formula 1 and determining whether to perform a garbage collection, using the reference VPC ratio and a current average VPC ratio. <Formula 1> Vr=Gp (Jp?Mp)/(Jp*Mp+(Gp*(Jp?Mp))) Here, Vr is the reference VPC ratio, Gp is the garbage collection speed, Jp is the maximum operating speed, and Mp is the minimum operating speed.

Abstract: Provided are a base film, a laminate, and a method of forming a polarizing film. Particularly, a base film which may effectively form a polarizing film having a thickness of approximately 10, 8, 7, 6, or 5 ?m or less and exhibiting excellent functions such as polarizing performance, a laminate, and a method of forming the same are provided. Therefore, a polarizing film may be formed by preventing tearing or curling during an elongation process, and easily elongating a polarizing material such as a polyvinylalcohol-based resin.

Abstract: The present invention relates to swelling tape for filling a gap and its use. The swelling tape is, for example, applied between gaps in which a fluid is present, thereby being deformed into a three-dimensional shape to fill the gap and fix an object separated by gaps as needed.

Abstract: Disclosed are a single antenna-based wireless charging and near field communication control apparatus and a user terminal therefor. A single antenna-based wireless charging and near field communication control apparatus according to one embodiment comprises: a switch control unit for detecting a resonance frequency from an input signal of a rectifier in a power receiver and determining whether the detected resonance frequency is a first frequency for wireless charging using a single antenna or a second frequency for near field communication using a single antenna, to generate a control signal; and a switch which is turned on/off for wireless charging or near field communication according to the received control signal from the switch control unit.

Abstract: A swelling tape for filling a gap, a method of manufacturing the swelling tape for filling a gap, a method of filling a gap, an electrode assembly and a secondary battery are provided. For example, the swelling tape can be applied inside a gap in which a fluid exists so as to fill the gap by becoming a 3D form, and can be useful at anchoring a subject in which the gap is formed, as necessary.

Abstract: A method of fabricating a semiconductor device includes forming first and second gate dielectric layers on first and second regions of a semiconductor substrate, respectively, forming a first metal-containing layer on the first and second gate dielectric layers, performing a first annealing process with respect to the first metal-containing layer, removing the first metal-containing layer from the first region, forming a second metal-containing layer on an entire surface of the semiconductor substrate, performing a second annealing process with respect to the second metal-containing layer, forming a gate electrode layer on the second metal-containing layer, and partially removing the gate electrode layer, the second metal-containing layer, the first metal-containing layer, the first gate dielectric layer, and the second gate dielectric layer to form first and second gate patterns on the first and second regions, respectively.