Abstract: An upper shearing blade equipped with a protrusion of a triangle-columnar shape and a lower shearing blade equipped with a protrusion of the same shape are applied onto the overlapped portion of metal plates to be bonded, and then pressed into the metal plates in an oblique direction inclined with respect to the thickness direction by a stroke in such a range that the metal plates are not completely cut off. The operating loci of the upper, shearing blade and the lower shearing blade are overlapped each other so that one falls inside the other, and the sheared surfaces of the metal plates are formed into a bonded portion by plastic flow deformation. Therein, since a compressive force is applied onto the portions to be bonded, the portion being defined by the amount of overlap, and the portions are compressed to form a compressed portion after completion of bonding, the bonding strength enhances.

Abstract: An apparatus and method for adjusting a desired expression section according to input bit values in a mobile communication system that expresses only a defined partial section of the input bit values in order to make the number of output bits be less than the number of the input bits, and maps bit values included in unexpressed sections to a specific value is provided. In the apparatus and method, a measurer divides possible output bit values into at least three sections, and measures output frequencies of output bits for the respective sections for a predetermined time. A controller adjusts the desired expression section, when an output frequency for a specific section is greater than output frequencies for other sections.

Abstract: A flat panel displaying apparatus is disclosed. The flat panel displaying apparatus includes a liquid crystal display module displaying a picture, a chassis surrounding edges of the liquid crystal display module, defining an external appearance of the flat panel displaying apparatus, a printed circuit board provided with a connector connected to an external system by a connection cable, being grounded to the chassis, a liquid crystal display controller provided in the printed circuit board, activating the liquid crystal display module, and a ground portion formed around the liquid crystal display controller. With this configuration, emission of electromagnetic waves of the printed circuit board is minimized and reliability of the product is enhanced.

Abstract: A low coast brake includes a plurality of main plates having, respectively, a body part, a tooth part formed on an outer circumference of the body part, and having a plurality of teeth formed with a gap of a first predetermined angle thereon, and a non-tooth part formed with a gap of a second predetermined angle on an outer circumference of the body part, having no teeth in order to enhance a fluidity of a hydraulic fluid. Such and arrangement decreases cost and weight and increases fuel mileage and improves shift feel.

Abstract: An apparatus and a method for correcting a distorted image is capable of correcting an optical distortion of an image and misconvergence by prewarping an inputted image without using a convergence yoke, and an image displayer using the same. The apparatus for correcting an image distortion for an image displayer in which an image signal is inputted to display an image on a screen and an image distortion is corrected, includes: a reference image generator for generating a predetermined reference image; a camera for inputting the reference image and photographing an image outputted on the screen; and a distortion information extracting unit for comparing the photographed image outputted from the camera and the reference image outputted from the reference image generator, and generating distortion correction information to correct a distortion of the photographed image in case that the image has been distorted.

Abstract: In a stroke control apparatus of a reciprocating compressor and a method thereof, the stroke control apparatus of the reciprocating compressor includes a reciprocating compressor, a current detecting unit for detecting a current flowing in a motor of the reciprocating compressor, a stroke detecting unit for detecting a piston stroke by using a voltage and a current applied to the motor of the reciprocating compressor, a phase difference detecting unit for detecting a phase difference by receiving the piston stroke from the stroke detecting unit and the motor current from the current detecting unit, an operational frequency determining unit for determining an operational frequency corresponded to an operation region according to the detected phase difference, a frequency/stroke storing unit for storing a piston stroke value by the determined operational frequency, a reference stroke value determining unit for determining a reference stroke value corresponded to the determined operational frequency by using the

Abstract: A fast search method for searching for an optimum codeword for nearest neighbor vector quantization. An upper boundary value and a lower boundary value between which an optimum codeword will exist in a codebook are calculated using a distortion of a designated element in an input vector and an experimentally determined threshold. Further, a start point and an end point for codebook search are determined using a binary search method from a codebook rearranged in descending order, and a full search scheme is applied only within a search range calculated by the determined start point and end point, thereby determining an optimum codeword for nearest neighbor vector quantization.

Abstract: An apparatus and method of receiving multi-path signals in a direct sequence Code Division Multiple Access (CDMA) mobile communication system is disclosed. Timing control signals from respective fingers are collected, and relations among positions of time delays where the respective fingers intend to perform a demodulation are analyzed. If it is determined that the time delay position for a specified finger approaches the time delay position of the finger allocated with an adjacent multi-path as close as a threshold value, the distance between the time delay positions is compulsorily kept as the threshold value. This can be effected by making the timing control signal of the finger allocated with the adjacent multi-path be equally used in the specified finger.

Abstract: An apparatus and method for determining a washing pattern of a direct drive inverter-type washing machine.

Abstract: A fast search method for searching for an optimum codeword for nearest neighbor vector quantization. An upper boundary value and a lower boundary value between which an optimum codeword will exist in a codebook are calculated using a distortion of a designated element in an input vector and an experimentally determined threshold. Further, a start point and an end point for codebook search are determined using a binary search method from a codebook rearranged in descending order, and a full search scheme is applied only within a search range calculated by the determined start point and end point, thereby determining an optimum codeword for nearest neighbor vector quantization.

Abstract: A chemical mechanical polishing apparatus includes a polishing pad on which a wafer requiring planarization is placed, a conditioning disc having an abrasive surface for conditioning the polishing pad, a tank containing de-ionized water in which the conditioning disc soaks while standing by, and a cleaner for cleaning the conditioning disc. The conditioning disc cleaner is disposed in the tank of de-ionized water to remove polishing impurities from an abrasive surface of the conditioning disc. The cleaner may include a brush having bristles against which the abrasive surface of the conditioning disc is placed when it is lowered into the tank. In operation, after the wafer is polished, an abrasive surface of the conditioning disc is run over the upper surface of the polishing pad to condition the surface of the polishing pad. Then the conditioning disc is moved off of the upper surface of the polishing pad and to a stand-by position in which the abrasive surface of the disc is submerged in a liquid.

Abstract: In an operation control apparatus of a compressor, a current, a voltage an d a TDC, etc. applied to a compressor are detected, a speed and a TDC are constantly controlled so as to place an operation point of the compressor within a high efficiency operation region by using a phase difference between each detected values (for example, a phase difference between the current and the voltage), and an operation frequency is varied according to a load variation, accordingly an operation efficiency of the compressor can be improved.

Abstract: An apparatus and method for operational control of a reciprocating motor compressor, includes performing an operation of the reciprocating motor compressor precisely and accurately. In addition, with the above apparatus and method, the phase difference between a first speed value of the motor (or first TDC value) and current applied to the motor is detected, the second speed value of the motor at the inflection point of the detected phase value (or second TDC value) is detected and stored as a reference value, and the speed of the motor is controlled on the basis of the reference value and the first speed value of the motor (or the first TDC value).

Abstract: In an apparatus and a method for controlling a compressor, by setting a stroke reference value so as to be smaller than a maximum stroke value in a maximum load state and operating the reciprocating compressor stably, damage of a reciprocating compressor can be prevented, a cost in a motor design can be reduced, and a size of a motor can be decreased in designing of the motor.

Abstract: The present invention relates to a coupling device for connecting members. The coupling device comprises a coupling case that has connecting slots, in which the members to be connected are placed, and wedges that are inserted into the space between the coupling case and the members. The coupling device of the present invention can connect members using the wedging action under external forces. The wedges are made to have a higher friction coefficient on the surface that touches the members than on the surface that touches the coupling case.

Abstract: Disclosed is a circuit for driving a linear compressor enabling to reduce a cost in detecting voltage and current applied to a linear compressor by decreasing the number of precision resistors.

Abstract: A gate electrode conductive layer is formed on an active region that is recessed relative to field oxide layers so as to define a damascene structure. The gate electrode conductive layer is formed on the active region but is not formed on a field region so that the thickness of an interlayer insulation layer deposited in a succeeding process is reduced, thereby reducing or preventing voids within the interlayer insulation layer. A polysilicon is formed on the bottom of the active region by selective epitaxial growth, thereby minimizing the influence of micro scratches, pits or stringers occurring on the bottom of the active region.

Abstract: An apparatus for detecting shaking of stroke of a linear compressor and a method are provided. A linear compressor mis-operates due to change in an external voltage or noise because the shaking of the stroke is detected by the amounts of change in the stroke or current.

Abstract: A transmitter for a multiple frequency radio communication system provides a capability for filtering spread spectrum signals of a multiple frequency system by using one lowpass filter, and variably controlling the sampling speed when converting the lowpass filtered digital signal into an analog signal.

Abstract: An insulating layer can be formed on first and second adjacent regions of an integrated circuit having a first step difference therebetween, the first and second regions having first and second respective etch rates associated therewith. A recess can be formed in the insulating layer on the second region having a second step difference with the first region that is less than the first step difference to provide a portion of the insulating layer between the first and second adjacent regions having a third step difference with the first region that is greater than the second step difference. A width of the portion is selected based on a difference between the first and second etch rates.