Abstract: The present invention is directed to methods for forming an inverter circuit for operating a drive motor of an electric vehicle, which can more effectively reduce the switching noise generated by a power module during the operation of an inverter.

Abstract: Provided is an apparatus and method for determining a data transmission rate in consideration of the queue length of a Relay Station RS in a multi-hop relay system. A Base Station BS apparatus of the multi-hop relay system includes a receiver and a calculator. The receiver receives channel condition information and queue length information for a Mobile Station MS from an RS. The calculator of the BS apparatus determines a data transmission rate between the BS and the RS for data of the MS using the channel condition information and the queue length information.

Abstract: Disclosed herein are a method of communicating and establishing a relay channel between a base station and a non-line-of-sight channel terminal in a next generation cellular communication system.

Abstract: A method of programming a non-volatile memory device employing program loops. Each program loop comprises a programming operation and a subsequent plurality of verifying operations. The method includes preventing the next program loop based on the results of performing the plurality of verifying operations of a current program loop each verifying operation verifying whether the selected memory cell transistors are program-passed. The decision to re-program may be based on a program pass number of the memory cell transistors obtained as a result of the plurality of verifying operations of the current program loop.

Abstract: Provided is a multi-hop wireless mobile communication system where a plurality of nodes exist. To select a serving node to be provided with a service, a Mobile Station (MS) receives relay information provided for serving node selection from at least two nodes and selects a first mode of selecting a node that requires the minimum time for unit data transmission/reception as the serving node or a second mode of selecting a node that can transmit and receive the maximum data per unit time as the serving node, based on the received relay information, in order to select the serving node.

Abstract: An active matrix organic light emitting diode AMOLED driving circuit using current feedback that ensures the uniformity of brightness in pixels of a flat panel display and shortens the time required to input accurate current to respective pixels in the driving circuit. The prevent invention provides an AMOLED driving circuit using current feedback, comprising: a current digital-to-analog converter outputting a current corresponding to input digital data; a first differential amplifier connected to the current digital-to-analog converter and controlling the input data current and a driving current of a driving transistor of a pixel circuit to be identical to each other; a current mirror mirroring driving current of an organic light emitting diode of the pixel circuit to an input side of the first differential amplifier; and a second differential amplifier coupled to the current mirror and controlling charge and discharge speeds of parasitic capacitance of the pixel circuit.

Abstract: A composition containing ginseng berry extract as active ingredient is for facilitation of blood circulation, for prevention of vascular aging, for treatment of vascular inflammation, for facilitation of angiogenesis, for treatment of ischemic heart disease, for improvement and treatment of local blood circulation insufficiency, for improvement of skin beauty and for improvement of male sexual function.

Abstract: Disclosed is a method for selecting a communication network by a wireless terminal, the method including receiving a signal having a predetermined reception power level from one or more communication networks, and calculating a guaranteed data rate of each of said one or more communication networks by using the predetermined reception power level of the signal; comparing the calculated guaranteed datarate with a minimum guaranteed datarate; and calculating a selection factor value of each of said one or more communication networks by using the guaranteed datarate when all guaranteed datarate of said one or more communication networks are equal to or greater than the minimum guaranteed datarate, and selecting a communication network having a lowest selection factor value.

Abstract: Provided is a self-pulsating laser diode including: a distributed feedback (DFB) section serving as a reflector; a gain section connected to the DFB section and having an as-cleaved facet at one end; a phase control section interposed between the DFB section and the gain section; and an external radio frequency (RF) input portion applying an external RF signal to at least one of the DFB section and the gain section.

Abstract: A driving apparatus for a display is provided. The driving apparatus for a display comprises a reference voltage generator, a digital-to-analog converter, and an output unit. The reference voltage generator generates a plurality of reference voltages, and receives a difference value between two adjacent reference voltages and generates a plurality of sub reference voltages. The digital-to-analog converter selects one of the reference voltages and outputs the selected reference voltage as a first analog signal. The digital-to-analog converter selects one of the sub reference voltages and outputs the selected reference voltage as a second analog signal. The output unit processes, by addition or subtraction, the first and second analog signals for output.

Abstract: Provided is a polypropylene resin composition having excellent impact resistance, impact strength at low temperature and transparence comprising ethylene-alpha olefin copolymer (c) to a polypropylene resin composition in which the ratio of viscosity is regulated by adjusting molecular weight of propylene-alpha olefin random copolymer (a) and propylene-alpha olefin elastic copolymer (b), thereby regulating impact resistance and flexural modulus of the polypropylene resin composition and improving transparence; therefore, applying as various products including cold-storage containers for freezer and refrigerator, food packaging container, extrusion blow molding material, film, sheet and bottle cap, etc.

Abstract: A current feedback-type AMOLED driving circuit. The current feedback-type AMOLED driving circuit includes a plurality of pixel circuits each having a data terminal for receiving a pixel current command, and a sense terminal for transmitting pixel current to a driver Integrated Circuit (IC), and a plurality of data lines provided such that a single data line is provided for a single column formed by a plurality of pixel circuits, thus data terminals of the pixel circuits, forming the column, are connected to the data line. In the AMOLED driving circuit, two columns are paired, sense terminals of pixel circuits, forming a first column of the two columns, are connected to a data line for a second column, and sense terminals of pixel circuits, forming the second column, are connected to the data line for the first column.

Abstract: The present invention relates to a controlled-release formulation comprising cilostazol and a method for preparing said formulation. The inventive controlled-release formulation comprising cilostazol or a pharmaceutically acceptable salt thereof, a solubilizing agent, a swelling agent, a swell-controlling agent and a gas generating material has advantages in that it maintains a constant cilostazol level in the blood through a slow release while it resides in the stomach and intestines over a long period of time, thereby increasing the absorption of cilostazol in the small intestine, the major absorption site of cilostazol, as well as minimizing adverse effects caused by rapid release and making it easy for a patient to take the drug.

Abstract: Disclosed is a display driving apparatus. The display driving apparatus comprises: a current DAC generating a data current; a data line connected to a pixel circuit requiring data writing on a matrix array of a display panel; an adjacent data line located adjacent to the data line; a current mirror feedbacking an excessive charging current generating due to parasitic capacitance of the adjacent data line as a charging current for charging parasitic capacitance of the data line; a current output unit connected to the current mirror and including a first driving transistor unit for driving the data line, and a second driving transistor unit for driving the adjacent data line; a source follower driving the current output unit according to an output node voltage of the current DAC; and a first constant current source discharging parasitic capacitance excessively charged in the data line and the adjacent data line.

Abstract: A method of programming a non-volatile memory device employing program loops. Each program loop comprises a programming operation and a subsequent plurality of verifying operations. The method includes preventing the next program loop based on the results of performing the plurality of verifying operations of a current program loop each verifying operation verifying whether the selected memory cell transistors are program-passed. The decision to re-program may be based on a program pass number of the memory cell transistors obtained as a result of the plurality of verifying operations of the current program loop.

Abstract: Provided is an RFID system and method for maintaining a constant strength of a signal transmitted from an RFID tag to an RFID reader, regardless of a distance between the reader and tag. The RFID signal strength measuring reader measures a signal strength received from the RFID tag, creates control information used to set an amplification amount of the RFID tag by using a value of the measured strength to include the control information in an output signal, and sends the output signal to the RFID tag. The RFID tag, if the signal sent from the RFID reader is received, extracts internal information from the received signal, sends the information to the RFID reader as an output signal, and extracts the control information included in the signal sent from the RFID reader to adjust a strength of the output signal according to a value of the control information.

Abstract: A radio frequency identification (RFID) tag is provided that prevents a recognition error of the RFID tag due to the occurrence of a shadow region. The RFID tag includes a first tag performing communication with an RFID reader and a second tag connected to the first tag and suitable for use with a different communication type from the first tag. Thus, when information stored in the first tag can not be read, the second tag is activated and externally transmits information and when information stored in the first tag can be read, the second tag is 1o deactivated and does not externally transmit information. A communication method of an RFID system including an RFID reader communicating with an RFID tag is also provided.

Abstract: A digital-to-analog converter comprises a current supplier, a current divider dividing current supplied from the current supplier into certain amounts, an inverter outputting inverted signals of input signals and non-inverted signals, a switch controlling a flow of the current divided into the certain amounts by the current divider according to the inverted signals and the non-inverted signals, and a current output block adding up the current divided into the certain amounts according to the non-inverted signals to output an analog signal. The digital-to-analog converter can be implemented on a small chip area with desired resolution.

Abstract: A method for retransmitting data when data transmission/reception has failed in a wireless LAN system using visible light communication. A mobile node searches a received frame for a fast feedback slot allocated for retransmission information when momentary data transmission/reception failure has occurred. One mini-slot from among the plurality of mini-slots is selected from the fast feedback slot. The mobile node transmits a fast feedback message, including information for retransmission, to an access point by using the selected mini-slot.

Abstract: A driving apparatus for a display is provided. The driving apparatus for a display comprises: a digital/analog converter for receiving an input voltage lower than a source voltage used in a buffer amplifier for output driving, generating a plurality of reference voltages, and selecting a reference voltage corresponding to an M (M is a positive integer) bit data signal; and an amplifier for amplifying the reference voltage selected by the digital/analog converter. Therefore, a circuit area and power consumption of the driving apparatus for a display can be minimized.