Abstract: In an anisotropic conductive film including conductive particles, and a bump, and a packaging structure of a semiconductor chip having the anisotropic conductive film and the bump, the anisotropic conductive film includes a resin layer and the conductive particles. The anisotropic conductive film electrically connects an electrode of a substrate and the bump of a semiconductor chip. A volume ratio of the conductive particles to the resin layer is about 0.1 to about 0.12. A number of the conductive particles per m3 is about 4 millions to about 7 millions. A standard deviation of heights of the bumps is no more than about 0.25. An interval between each of the bumps and an electrode of the substrate is no more than about 1.3 ?m. Therefore, the size of each of the conductive particles is optimized so that a failure probability of the open circuit is decreased.

Abstract: A driver chip includes a base body, input terminals, first output terminals and dummy terminals. The base body includes a face having first to fourth edge portions. The first and second edge portions are disposed in substantially parallel along a longitudinal side of the face, and the third and fourth edge portions are disposed in substantially parallel along a horizontal side of the face. The input terminals are formed on the first edge portion such that the input terminals are arranged along the longitudinal side. The first output terminals are formed on the second edge portion such that the first output terminals are arranged along the longitudinal side. The dummy terminals are formed such that the dummy terminals are disposed between the input terminals and the first output terminals. A warpage and defects of electrical connection between the driver chip and a display panel of the display apparatus are prevented.

Abstract: A driver chip includes a base body having a driver circuit formed therein. A plurality of conductive bumps is disposed over a top face of the base body, the plurality of conductive bumps being arranged in a plurality of rows along the longitudinal direction of the base body. A plurality of conductive wirings is formed over the top face of the base body that electrically connects the driver circuit to the plurality of conductive bumps.

Abstract: A handoff method in a mobile communication system using frequency hopping-orthogonal frequency division multiplexing (FH-OFDM). A mobile host predicts a handoff according to strength of transmission power of a currently serving base station, reserves a physical channel required for the handoff associated with at least one candidate base station, selects a handoff target base station from the at least one candidate base station, releases a channel with the serving base station, and performs data communication with the target base station through the reserved physical channel.

Abstract: A handoff method in a communication system where BSs providing different radio access interfaces to an MS are connected to an IP-based network through routers. A handoff from a first BS to a second BS is decided for an MS that receives IP service data from the first BS and an L2 connection is established between the MS and the second BS. During the L2 connection establishment, movement of the MS in the IP network is detected. Handoff negotiations are conducted between the first and second BSs by IP signaling. If the handoff is available according to the negotiations, mobility management control is performed considering movement of the MS. The IP service data is transmitted to the MS in a network path reset to the second BS by the mobility management control and an L2 connection is released between the MS and the first BS.

Abstract: A method quickly resuming a downlink service in a hard handover in a cellular mobile communication system. To provide the fast downlink service to an MS during a hard handover from an OBS to an NBS, the NBS receives handover user information from the OBS, and generates an MS temporary ID using the handover user information to identify the MS. If user data is generated for the MS before a connection is established for traffic transmission between the MS and the NBS, the NBS transmits the user data to the MS on an HCCH using the MS temporary ID.

Abstract: Provided is a turbine type electric fuel pump for an automobile having a casing in which a pump portion and a motor portion are installed. The pump portion includes a fuel intake case having a fuel intake hole, a fuel discharge case having a fuel discharge hole, and an impeller installed on a pumping chamber. An inlet side ring type duct is connected to the fuel intake hole. An outlet side ring type duct is connected to the fuel discharge hole. The impeller includes a disc portion in which a shaft assembly portion is formed at the center thereof, a plurality of blades extending from an outer circumferential surface of the disc portion outwardly in a radial direction, and a ring portion connecting the blades along the outer circumferential surface of the disc portion. The outer circumferential surface of the disc portion gradually protrudes outwardly in a radial direction of the impeller from both upper and lower sides thereof to a center thereof.

Abstract: In an interface apparatus and a method thereof for a display system displaying an image (an animation, a still image and a text) and a text through an I2C (IIC) interface of a main CPU without operating a video codec in a standby mode of a display system, the apparatus includes a main CPU for outputting data including an image and a text according to an operation mode of a system, a video codec being inputted the data and outputting the data by interfacing with the main CPU according to the operation mode and a LCD driver being inputted the data through the video codec in accordance with the operation mode or being inputted the data from the main CPU through the I2C interface of the main CPU and displaying the inputted image and text on the screen.

Abstract: Provided is a power supply apparatus which includes a comparator, an output voltage adjusting unit, a controller, and an output unit. The comparator compares a sensed AC input voltage to a reference voltage and outputs one of first through third comparison result signals. The output voltage adjusting unit outputs one of first through third output voltage level adjustment signals for changing the feedback output voltage level according to one of the comparison result signals. The controller outputs a switching signal. The output unit outputs a predetermined voltage by regulating and smoothing an input voltage induced to a secondary coil of a transformer by the switching signal. By adjusting the output voltage of a boost converter according to the input voltage, efficiency is increased because there is less power loss of the switching component, and the hold-up time may be adjusted even in a case of low AC input voltage.

Abstract: In a drive IC and a display device having the same, the drive IC includes a plurality of bumps disposed on a lower surface of the drive IC and aligned in a plurality of rows along an edge of the drive IC. The bumps aligned in different rows from each other are juxtaposed in a direction perpendicular to a direction in which the bumps are aligned. Accordingly, when the drive IC is mounted on a display panel using an anisotropic conductive film, the anisotropic conductive film may be smoothly flowed through a space defined by the bumps of the drive IC, thereby improving electric properties of the drive IC and display device.

Abstract: The present invention relates to a compressor that can reduce the refrigerant gas pulsation pressure in multi-step when a refrigerant gas is discharged into a rear refrigerant gas discharge chamber toward the outside of the compressor and into a front refrigerant gas discharge chamber toward the outside of the compressor, thereby obtaining excellent reduction in the refrigerant gas pulsation pressure and remarkably reducing a noise due to the refrigerant gas pulsation.

Abstract: A liquid crystal display is provided, which includes: a liquid crystal panel including a plurality of pixels including switching elements, a plurality of gate lines for transmitting gate signals to the switching elements, and a plurality of data lines for transmitting data voltages to the pixels; a data driver including a plurality of data driving ICs connected to respective sets of the data lines, receiving image data, and applying the data voltages corresponding to the image data to the data lines; and a gate driver applying the gate voltages to the gate lines, wherein the data driving ICs are supplied with a ground voltage and a supply voltage and voltage levels of the image data swing with reference to a reference voltage lower than the supply voltage.

Abstract: A pass band flatness correction circuit for improving flatness of a ripple occurring within a pass band in a band pass filter and a mobile telecommunication repeater system is provided. The pass band flatness correction circuit includes a complementary band pass filter having a pass band transfer characteristic producing a counter-ripple of a reverse shape to a ripple in a pass band of a main band pass filter, for flattening a total of pass band transfer characteristics of a filtering system, an amplifier circuit for enhancing an increase in a filter insertion loss, and an attenuator circuit for enhancing a reflection loss characteristic of the whole circuit. The flatness and a stop band attenuation characteristic of the band pass filter whose pass band flatness is distorted and a repeater system employing the band pass filter is enhanced, to thereby improve performance and speech quality of a mobile telecommunication service.

Abstract: An oil hydraulic cylinder configured to allow an object to be smoothly and continuously lifted without being clatteringly swayed and unnecessarily rotated by the oil hydraulic while supply of the oil hydraulic remains uninterrupted when an adjusting lever is manipulated for lifting and lowering operations, the cylinder comprising: a cap part protrusively formed thereon with a compression unit for forcibly generating oil pressure, an operation unit fixedly connected to an object for lifting, stopping and lowering the object and an adjusting unit for controlling the lifting, stopping and lowering of the object; a body part connected inside a body case to the compression unit, the operation unit and the adjusting unit and formed with a plurality of cylinders and pistons for carrying out an oil pressing operation; a base part coupled underneath the body part and formed therein with a predetermined flow route; an oil control part for controlling oil flowing in an oil route formed inside the base part; and a manipu

Abstract: Disclosed is an apparatus for converting internet protocol addresses, including: an address allocating unit for allocating a first private IP address and a second private IP address of a first IP address format to a first terminal and a second terminal upon an access request of the first terminal; an address generating unit for generating a first public IP address of a second IP address format from a hardware address of the first terminal; an address acquiring unit for acquiring a second public IP address of the second IP address format corresponding to a domain name of the second terminal from a domain name server; a storing unit for storing a mapping table where the first private IP address and the second private IP address correspond respectively to the first public IP address and the second public IP address; and a control unit for providing the first private IP address and the second private IP address to the first terminal.

Abstract: In an interface apparatus and a method thereof for a display system displaying an image (an animation, a still image and a text) and a text through an I2C (IIC) interface of a main CPU without operating a video codes in a standby mode of a display system, the apparatus includes a main CPU for outputting data including an image and a text according to an operation mode of a system, a video codec being inputted the data and outputting the data by interfacing with the main CPU according to the operation mode and a LCD driver being inputted the data through the video codec in accordance with the operation mode or being inputted the data from the main CPU through the I2C interface of the main CPU and displaying the inputted image and text on the screen.

Abstract: An apparatus and method for multiplexing a special resource of an intelligent network-intelligent peripheral (IN-IP) are disclosed, including a plurality of specialized resources that provide services to subscriber calls, contacting an intelligent network, and a plurality of modules that manage groups of the specialized resources. A main processor manages the plurality of modules and collects state information from each of the modules. A resource management block restores a service to a subscriber call, disrupted by a faulty one of the specialized resources, in accordance with the state information collected by the main processor.

Abstract: A pass band flatness correction circuit for improving flatness of a ripple occurring within a pass band in a band pass filter and a mobile telecommunication repeater system is provided. The pass band flatness correction circuit includes a complementary band pass filter having a pass band transfer characteristic producing a counter-ripple of a reverse shape to a ripple in a pass band of a main band pass filter, for flattening a total of pass band transfer characteristics of a filtering system, an amplifier circuit for enhancing an increase in a filter insertion loss, and an attenuator circuit for enhancing a reflection loss characteristic of the whole circuit. The flatness and a stop band attenuation characteristic of the band pass filter whose pass band flatness is distorted and a repeater system employing the band pass filter is enhanced, to thereby improve performance and speech quality of a mobile telecommunication service.

Abstract: An automatic test circuit for automatically testing the operation of a semiconductor memory device to check whether it is normal or abnormal. The automatic test circuit comprises a test command signal generation stage for generating a test command signal in response to an external row address strobe signal, an external column address strobe signal, an external write signal and an external read signal, a row address signal generation stage for generating an internal row address strobe signal and a row address signal in response to the external row address strobe signal and the test command signal from the test command signal generation stage, and a column address signal generation stage for generating an internal column address strobe signal and a column address signal in response to the internal row address strobe signal from the row address signal generation stage and the test command signal from the test command signal generation stage.

Abstract: A photoelectrically controlled corner light system for a vehicle includes corner lights adjacent to headlights which are disposed in the right and left corners of the vehicle. The corner lights switched by operating a headlight turn lever are connected to a light detecting sensor for operatively controlling the brightness of its illumination. The light detecting sensors detects the light of headlights from opposing vehicles and controls the brightness of the illumination in the light system to prevent the view of a driver of the opposing vehicle from being disturbed.