Abstract: A transmission timing control apparatus included in a network node constituting a telecommunications system is configured to use the reception timing of a timing signal from another node to determine the transmission timing of a timing signal of the own node and determine a time slot for transmission of a data signal in accordance with the transmission timing and the reception timing of a timing signal from the other node. A response timing signal transmitter transmits a response timing signal when received the timing signal from the other node. A transmission timing control circuit uses the reception timing of the timing signal and that of the response timing signal to determine the timing at which the own node transmits the timing signal.

Abstract: Provided are a double wavelength semiconductor light emitting device, having an n electrode and p electrode disposed on the same surface side, in which the area of a chip is reduced to increase the number of chips taken from one single wafer, in which light focusing performance of double wavelength optical beams are improved, and in which an active layer of a light emitting element having a longer wavelength can be prevented from deteriorating in a process of manufacturing; and a method of manufacturing the same. Semiconductor lasers D1 and D2 as two light emitting elements having different wavelengths are integrally formed on a common substrate 1. A semiconductor laminate A is deposited on an n-type contact layer 21 in a semiconductor laser D1, and a semiconductor laminate B is deposited in a semiconductor laser D2. The semiconductor laminate A and semiconductor laminate B are configured to have different layer structures.

Abstract: The present invention relates to a mounting method of passive component, and particularly relates to a mounting method of a small-size passive component. A passive component partially covered by an adhesive material is provided. Before the adhesive layer is melted, the adhesive material is melted and then solidified to form a fixing structure between the passive component and a substrate for fixing the passive component on the substrate. Therefore, the tombstone problem caused by uneven pulling force that the melted solder applies to the two ends of the passive component is effectively solved. The yield rate is increased, and the product loss is reduced.

Abstract: Polymer composite including a compatibilizer and having selective permeability to chemical permeants due to interaction differences between the compatibilizer and the chemical permeants, includes 50-99 wt % of an amorphous thermoplastic resin selected from the group polyethylenepropylendienterpolymer, poly(1-(trimethylsilyl)-1-propyne), amorphous nylon, polystyrene and polycarbonate; 0.9-50 wt % of a semi-crystalline polymer selected from the group polyamide (nylons), polyethylene terephthalate, polybutylene terephthalate, polyethylene, polypropylene, polyetheretherketone, polyvinylidene fluoride, polytetrafluoroethylene, polyphenylene sulfide, and thermotropic or lyotropic liquid crystal polymer, and dispersed in the amorphous thermoplastic resin to provide a dispersed phase having an interface with the amorphous thermoplastic resin; and 0.

Abstract: The present invention relates to a cross dipole including a plurality of dipole elements respectively corresponding to a plurality of frequency bands and reconfiguring the plurality of frequency bands. A cross dipole module includes a circuit for controlling a signal of the cross dipole according the cross dipole and an external control signal. An array antenna includes a plurality of cross dipole modules arranged in one dimension or two dimensions. A multiple input multiple output antenna includes a plurality of array antennas for independently operating and an indoor supporting system for respectively applying a control signal to the plurality of array antennas, and reconfigures a distance between the neighboring array antennas.

Abstract: Provided is a method for fabricating a Schottky barrier tunnel transistor (SBTT) that can fundamentally prevent the generation of a gate leakage current caused by damage of spacers formed on both sidewalls of a gate electrode. The method for fabricating a Schottky barrier tunnel transistor, which includes: a) forming a silicon pattern and a sacrificial pattern on a buried oxide layer supported by a support substrate; b) forming a source/drain region on the buried oxide layer exposed on both sides of the silicon pattern, the source/drain region being formed of a metal layer and being in contact with both sidewalls of the silicon pattern; c) removing the sacrificial pattern to expose the top surface of the silicon pattern; and d) forming a gate insulating layer and a gate electrode on the exposed silicon pattern.

Abstract: A seamless display manufacturing method includes fixing a light emitting source in a backlight module; fixing an optical film on the light emitting source; placing a partitioned structure on the optical film; aligning or overlapping the side edges of main bodies of adjacent liquid crystal panels, and putting them over the partitioned structure; and providing a protection layer having a micro-structure over a main body of a liquid crystal panel, thus forming an LCD display. A seamless display, comprises: a backlight module, that includes a plurality of light emitting sources; an optical film; a partitioned structure; a plurality of LCD panel main bodies; a protection layer having a micro-structure; and a locking portion. The main bodies of a plurality of liquid crystal panels are put together through aligning or overlapping their respective side edges, and then are covered over the partitioned structure.

Abstract: A transmission unit comprises an optical pulse train generation unit, first channel encoded optical pulse signal generation unit, second channel encoded optical pulse signal generation unit, third channel encoded optical pulse signal generation unit, and fourth channel encoded optical pulse signal generation unit; the second and fourth channels further comprise polarization controllers respectively. By means of these polarization controllers, a polarization control step is executed in which the planes of polarization of first encoded optical pulse signals of the second and fourth channels are rotated by 90°. By executing the polarization control step, the directions of the planes of polarization of the first decoded optical pulse signals of adjacent channels in the reception unit can be caused to be mutually orthogonal.

Abstract: In a communication network which performs transmission from a plurality of first communication devices to a single second communication device using a synchronous code division multiplexing technique, the phases of signals transmitted from the first communication devices are synchronized easily. The first communication devices control the transmission phase of spread modulated signals using phase control information received from the second communication device. A repeater generates a code division multiplexed signal by superposing the spread modulated signals transmitted respectively from the first transmission devices. The second transmission device demultiplexes the code division multiplexed signal received from the repeater, determines the optimum phase of the demultiplexed signals, and transmits the determined optimum phase to the first transmission devices as the phase control information.

Abstract: The present invention discloses a large-field unit-magnification projection optical system. The optical system includes an optical axis, a spherical concave reflection mirror; a lens group with positive refracting power arranged adjacent the mirror with an air space therebetween. The lens group includes a first plano-convex lens, a negative meniscus lens adjacent the plano-convex lens, a positive lens adjacent the negative meniscus lens, a negative double-convex lens spaced apart far from the positive lens, and a second plano-convex lens. The optical system further includes a pair of prisms each having respective first and second surface. The second surfaces are arranged adjacent the flat surface of the plano-convex lens element on opposite sides of the optical axis and the first surfaces are arranged adjacent object planes and image planes, respectively.

Abstract: A liquid crystal display and a shift register unit thereof are provided. The shift register unit includes a first switch, a second switch, and a level shift circuit. The first switch has a first input terminal, a first control terminal, and a first output terminal. The second switch has a second input terminal, a second control terminal, and a second output terminal. The second control terminal is coupled to the first output terminal and the level shift circuit. When the first switch is enabled, the first input terminal receives an input signal converting the voltage of the second control terminal into a first voltage for turning on the second switch. The second output terminal outputs a first clock signal to a scan signal line. When the level shift circuit is enabled, the voltage of the second control terminal is converted into a second voltage for turning off the second switch.

Abstract: Provided are a composition for an organic polymer gate insulating layer and an Organic Thin Film Transistor (OTFT) using the same. The composition includes an insulating organic polymer including at least one selected from the group consisting of polymethylmethacrylate (PMMA), polyvinylalcohol (PVA), polyvinylpyrrolidone (PVP), poly(vinyl phenol) (PVPh) and a copolymer thereof, a crosslinking monomer having two or more double bonds, and a photoinitiator. The OTFT includes a gate insulating layer of a semi-interpenetrating polymer network formed of the composition. The composition for a photoreactive organic polymer gate insulating layer has a photochemical characteristic that enables micropatterning, and can be formed into a layer having excellent chemical resistance, thermal resistance, surface characteristics and electrical characteristics.

Abstract: A system status display module with a level-shift circuit thereof is provided for processing signals of system status data. The level-shift circuit includes an input circuit and an output circuit for processing plural input signals that have different voltage ranges. The input circuit includes two field effect transistors (FETs) in circuit connection with an input adjusting voltage, thereby transferring the voltage ranges of the input signals into the operation voltage range of a display controller on the module. The output circuit includes another two FETs in circuit connection with two different output adjusting voltages, thereby transferring the voltage range of an output signal transmitted from the display controller into required voltage ranges for the mother board.

Abstract: A bisbiphenylacylphosphine oxide of formula (I) and its preparation method are provided. The formula of —Ar— is First, 10-chloro-9,10-dihydro-9-oxa-10-phosphaphenanthrene (CDOP) is prepared by using 2-phenylphenol, and then is esterified to synthesize 6-methoxy-(6H)-dibenz[c,e][1,2]oxa-phosphorin (MDOP). Next, acid chloride compounds are added for performing the Arbuzov reaction to synthesize bisbiphenylacylphosphine oxide. CDOP is hydrolyzed to be derived into 9,10-dihydro-9-oxa-10-phosphaphen-anthrene-10-oxide (DOPO), and then DOPO reacts with arylaldehyde to form secondary alcohol. Therefore, bisbiphenylacylphosphine oxide is prepared by using secondary alcohol under oxidation. Also, under a coupling reaction, DOPO reacts with the acid chloride compounds by using a Lewis acid as a catalyst to prepare bisbiphenylacylphosphine oxide.

Abstract: A pixel of the LCD is driven according to a precharge pixel value and a compensation pixel value both being generated from a pixel value during a precharge field and a compensation field respectively. A precharge driving voltage corresponding to the precharge pixel value, and a compensation driving voltage corresponding to the compensation pixel value is then determined and used to drive the pixel. The lightness of the pixel driven according to the precharge pixel value and the compensation pixel value is substantially the same as the lightness of the pixel if driven according to the pixel value. The precharge field comes before the compensation field when the precharge pixel value is larger than the compensation pixel value, and the compensation field comes before the precharge field when the compensation pixel value is larger than the precharge pixel value.

Abstract: The present invention relates to a switch, a negative resistance cell, and a differential voltage controlled oscillator using the same. The present invention includes a first signal line provided in a first direction, a second signal line provided in parallel with the first signal line, and first to fourth gate electrodes, first to third source electrodes, and first to fourth drain electrodes formed between the first signal line and the second signal line, and provides a switch having electrodes in the order of the first gate electrode, the first drain electrode, the second gate electrode, the first source electrode, the third gate electrode, the second drain electrode, the fourth gate electrode, the second source electrode, the fifth gate electrode, the third drain electrode, the sixth gate electrode, the third source electrode, the seventh gate electrode, the fourth drain electrode, and the eighth gate electrode.

Abstract: A method of disposing a dummy pattern includes the steps of obtaining an inter-wiring parasitic capacity and a wiring total parasitic capacity for each wiring using wiring layout data and initial dummy pattern layout data; creating a first data base based on the inter-wiring parasitic capacity; creating a second data base based on the wiring total parasitic capacity; performing dynamic and static simulations for creating a third data base storing the results of the dynamic and static simulations, the result of the dynamic simulation being information about the first wiring, and the result of the static simulation being information about the second wiring; and performing an additional insertion of dummy pattern near a third wiring, the third wiring being determined to be a wiring which is capable of be affected by voltage noise based on the data in the third data base.

Abstract: There are provided a method for selecting an optimal beam to improve digital broadcasting receiving performance, and a digital broadcasting receiving apparatus using the same. The method includes the steps of: a) calculating a mainpath Signal to Multipath signal and Noise Ratio (SMNR) based on a channel impulse response for a plurality of beams which are formed according to steering directions from output signals of antennas, wherein the output signal of each antenna has different phase shift according to location of antenna element; b) selecting a predetermined number of beams having a high SMNR value by comparing the calculated SMNR value for respective beam; c) calculating a mainpath Signal to Dominant Multipath signal Ratio (SDMR) based on a channel impulse response corresponding to the selected beam; and d) selecting a beam output signal having the biggest SDMR value by comparing SDMR values calculated in selecting a predetermined number of beams.

Abstract: An electric power steering apparatus including a steering torque detecting section configured to detect a steering torque applied to an operation member for steering a vehicle, a steering state judging section configured to determine whether forward stroke steering that steers the operating member away from a steering angle midpoint is performed, a motor controlling section configured to control the driving of an electric motor based on the steering torque detected by the steering torque detecting section, and a phase compensating section provided in the motor controlling section for performing phase compensation, such that, when the forward stroke steering is not performed according to the steering state judging section, a gain in a predetermined frequency band in frequency response characteristics of the phase compensation is lower than gains in frequency bands lower and higher than the predetermined frequency band, and is lower than a gain in the predetermined frequency band when the forward stroke steerin

Abstract: A pipe unit and a method for assembling a pipe conduit using the same are provided. The pipe unit comprises a pipe body, a first flange, a second flange, and an adjusting structure. The pipe body has a first end and a second end opposite to the first end. The first flange and the second flange are respectively disposed on the first end and the second end. The adjusted structure is disposed between the first flange and the second flange and is for adjusting the length of the pipe unit.