baber/WOPTO huggingface dataset:
Patent KR-20030000440-A (KR)
Title: Form defect inspection device of pcb for ic using 2 boat
Inventor: LEE JEONG HUN
IPC: H05K13/08
Filed: 2001-06-25
Abstract: PURPOSE: An apparatus for testing shape defects of a PCB for IC is provided to reduce manufacturing cost by testing both sides of the PCB through the use of a single camera. CONSTITUTION: An apparatus comprises a first boat(110) arranged on a base(100) in such a manner that the first boat is movable in an X-axial direction by a first actuator, wherein the first boat fixes bottom and side surfaces of a PCB(300) for IC; a second boat(120) spaced apart from the first boat on the base and arranged to be movable in an X-axial direction by a second actuator, wherein the second boat fixes bottom and side surfaces of the PCB for IC; a flipper(160) fixed to the base between the first boat and the second boat, and which grips the PCB for IC and moves the PCB from the first boat to the second boat; a CCD camera(200) arranged in such a manner that the CCD camera is movable in an Y-axial direction within the moving ranges of first and second boats by a third actuator; an illuminating device(202) arranged underneath the CCD camera and which moves along with the CCD camera; and an image processing unit for determining defects of the quality of the PCB from the image taken by the CCD camera.
Patent KR-20020003823-A (KR)
Inventor: POCHMULLER PETER
IPC: H01L27/105
Filed: 2001-07-03
Abstract: PURPOSE: A method and a configuration for compensating for parasitic losses are provided to overcome the disadvantages of the known methods and configurations which permit magnetic fields of the same size to be provided for the individual memory cells in each case. CONSTITUTION: A configuration for compensating for parasitic losses includes a memory cell array of an MRAM in which word line drivers WT1, WT2, WT3 supply the word lines WL1, WL2 and WL3 with respective currents having a size of 1.0 mA, 0.9 mA and 0.8 mA, respectively. Similarly, bit line drivers BT1, BT2, BT3 and BT4 in this MRAM memory cell array feed the bit lines BL1, BL2, BL3 and BL4 with currents of 1.0 mA, 1.1 mA, 1.2 mA and 1.3 mA, respectively. Individual word lines WL1, WL2 and WL3 and bit lines BL1, BL2, BL3 and BL4 are supplied with currents which are proportioned in such a way that a total current level at respective points of intersection between the word lines WL1, WL2 and WL3 and the bit lines BL1, BL2, BL3 and BL4 is substantially constant.
Patent KR-20030002943-A (KR)
Title: Memory system including memory chip capable of varying input resistance
Inventor: JUNG TAE SEONG
IPC: G06F12/00
Filed: 2001-07-03
Abstract: PURPOSE: A memory system including a memory chip varying an input resistance value is provided to vary the input resistance value in order to select an optimal input resistance value according to a load condition of a bus channel. CONSTITUTION: The memory system includes a memory controller(200), the bus channel(205), memory modules(210,220,230,240) and memory slots(250,260,265). The memory modules(210,220,230,240) include a plurality of memory chips. Input resistances(RT1-RTN) commonly connected with a terminal voltage(VT) are selectively connected to an input terminal of the memory chips through switching circuits(215,225,235,245). The memory controller(200) controls the data input/output of the memory chips through the bus channel(205). The memory modules(210,220,230,240) act as the load of the bus channel(205) by installing to the memory slots(250,255,260,265). The first memory module(210) includes the input resistances(RT1-RTN) and the switching circuit(215). The switching circuit(215) selects the optimal input resistance according to the load condition of the bus channel(205).
Patent KR-20030004712-A (KR)
Title: suspension device of washing machine
Inventor: KIM GON
IPC: D06F37/20
Filed: 2001-07-06
Abstract: PURPOSE: A suspension device for a washing machine is provided to improve the sliding friction force between a packing rubber and a snubber bar and between a suspension cap and the snubber bar by fixing the packing rubber to the suspension cap, thereby surely damping the vibration of a water storage tub. CONSTITUTION: A suspension device for a washing machine includes a snubber bar(20) of which an end is rotatively fixed at a side of a body, a suspension cap(30) formed with a through hole penetrated by the snubber bar and coupled at a side of a water storage tub to be lifted by the snubber bar, formed with a skirt part in the center and an insertion hole below the skirt part perpendicularly to the through hole, and having both facing surfaces cut in the longitudinal direction to be retracted inwardly by elasticity, a packing rubber(40) mounted in the insertion hole of the suspension cap and formed with a through hole of the sliding of the snubber bar, a compression spring(60) secured to a bottom surface of the skirt part of the suspension cap at and end to be extended by the lifting of the suspension cap, and a snubber base(50) mounted at the other end of the snubber bar for supporting the other end of the compression spring.
Patent KR-20030013193-A (KR)
Title: Rf mixer using half local oscillator frequency
Inventor: KIM NAM SU
IPC: H03D7/14
Filed: 2001-08-07
Abstract: PURPOSE: A frequency mixer using half local oscillation frequency is provided to remove an offset of a direct current voltage when using a frequency mixer at a homo heterodyne transceiver, and to half a frequency of a local oscillator needed for a high frequency heterodyne transceiver. CONSTITUTION: The first and second input terminals(IN+,IN-) receive high frequency signals as differential signals. The first mixing part(100) comprises the first and second NMOS transistors(M10,M20), which have sources connected to the first input terminal(IN+), drains connected to each other, and gates connected to receive signals(LO+,LO-) from a local oscillator. The second mixing part(200) comprises the third and fourth NMOS transistors(M30,M40), which have sources connected to the second input terminal(IN-), drains connected to each other, and gates connected to receive the signals(LO+,LO-) from the local oscillator.
Patent KR-20030014847-A (KR)
Title: Exhaust device of semiconductor manufacturing apparatus
Inventor: CHO GYEONG OK
IPC: H01L21/02
Filed: 2001-08-13
Abstract: PURPOSE: An exhaust apparatus of semiconductor fabrication equipment is provided to prevent leakage of a joint part by forming a storage tank and a connection part of a bellows with one body. CONSTITUTION: An upper exhaust pipe(100) is use for exhausting chemicals such as POCl3. A bellows(110) is connected with the upper exhaust pipe(100). A storage receptacle(120) is used for storing the chemicals of the bellows(110). The storage receptacle(120) is connected with the bellows(110). A waste solution tank(160) is used for store the chemicals of the storage receptacle(120) through the storage receptacle(120). The storage tank(120) and a connection part of the bellows(110) are formed with one body. A valve(150) is installed at a lower portion of a lower exhaust pipe(140) in order to control the flow of the chemicals. A vent line(130) is installed at an upper face of the storage receptacle(120) in order to discharge gases.
Patent KR-20030015475-A (KR)
Title: Hands free apparatus for personal portable terminal wiht communication functionality
Inventor: KIM JONG MIN
IPC: H04B1/38
Filed: 2001-08-16
Abstract: PURPOSE: An embedded-type handsfree device for a PDA(Personal Digital Assistant) having a communication function is provided to be effectively used in the case of performing a voice telephone call or listening to a music by embedding an earphone in a PDA phone and automatically providing a sound source transmitted through a speaker or a microphone to the earphone. CONSTITUTION: A coil spring automatically winds and unties a line of an earphone. A sensing device senses that the earphone is dismounted to the outside of a body. If the dismount of the earphone is sensed by the sensing device, voice source information transmitted through a microphone and the speaker embedded in the body is transmitted through the earphone.
Patent KR-20030018320-A (KR)
Title: Method of Melt Feeding Control for Submerged Entry Nozzle in Twin Roll Strip Caster
Inventor: CHOO DONG GYUN
IPC: B22D11/10
Filed: 2001-08-28
Abstract: PURPOSE: A method for controlling melt feeding of submerged entry nozzle for twin roll strip caster is provided to prevent strip fracture due to melting of leader strip by forming a discharge retarding plate at the outlet of the lower part of a wide submerged entry nozzle, thereby supplying melt uniformly during the initial stage of casting. CONSTITUTION: In manufacturing strip by feeding melt to a pair of casting rolls water cooled from a wide submerged entry nozzle comprising upper outlet, lower side outlet and lower downward outlet(7) in twin roll strip casting process, the method for controlling melt feeding of the submerged entry nozzle for twin roll strip caster is characterized in that melt is stably supplied during casting by forming a melt discharge retarding plate(9) at the lower side outlet and lower downward outlet(7) of the submerged entry nozzle, wherein the melt discharge retarding plate(9) is constructed in such a way that it prevents discharge of melt during the initial stage of casting and discharges melt as it is being melted when melt is discharged from the upper outlet of the submerged entry nozzle.
Patent KR-20030018567-A (KR)
Title: The connecting structure of an automotive suspension
Inventor: CHO HYEON JONG
IPC: B60G3/20
Filed: 2001-08-30
Abstract: PURPOSE: Assembling structure of a suspension for a vehicle is provided to simplify assembling process, and to prevent breakage of a bush in shaking a lower arm by reducing assembling factors of a link rod of a mounting member. CONSTITUTION: A stabilizer(S) keeping turning stability with a shock absorber buffering impact is combined with a lower arm between a knuckle and a vehicle body by a mounting member(1). The mounting member has a link rod(2) connecting the stabilizer and the lower arm, a bolting connecting member(3) combined with a nut(4) to fix the stabilizer in the end of the link rod, a bush(12) inserted to the lower part of a fixing bracket(10), and a dust cover(11) inserted to the upper part of the fixing bracket to cover a rotating ball joint(2a) of the link rod. Assembling process is decreased with reducing parts.
Patent KR-20030018731-A (KR)
Title: backrest mechanism for chairs
Inventor: LEE JONG SIN
IPC: A47C1/032
Filed: 2001-08-31
Abstract: PURPOSE: Provided is a drive system for back of a chair which prevents patients from being slid along the back side of the chair when rotating the back of the chair so that it relives the patients of burden to move in an opposite sliding direction after rotation. CONSTITUTION: The drive system for the back of the chair comprises the parts of: a pin(7) which is rotated at the center of a rotation center point(O2) and an eccentric rotation center point(O3) of the back of the chair; a plate(6) which is adhered to the back of the chair and rotated against a plate(5); a guide sheet(3) which moves an assembled pin(4) along a guide groove fixed toward the rotation center point; and the back of the chair which is rotated and slid with the guide sheet at the center of O2 rotation center point.
Patent KR-20020020187-A (KR)
Title: Auto calibration circuit for radio frequency synthesizer circuits
Inventor: AMIT BERSTEIN
IPC: H03L7/18
Filed: 2001-08-31
Abstract: PURPOSE: An automatic calibration system for a phase locked loop is provided to operate in a multiplexing band for an overall operational frequency range and to utilize a common voltage controlled oscillator(VCO) for preventing a result from changing during a manufacturing process. CONSTITUTION: An automatic calibration system for a phase locked loop includes a voltage controlled oscillator(VCO)(12) of the phase locked loop, a comparator circuit(26), a counter(27) and a divider(35). The automatic calibration circuit selects an operational frequency range of the VCO(12) of the phase locked loop. After tuning an operational frequency of the VCO(12) at one end of a tuned frequency at every changing of a frequency, the automatic calibration system converts the range to digital. When a control voltage at a control input terminal(13) of the VCO(12) is changed from the present value, an operation to select a range is disabled. At that time, it is allowed to synchronize by using a reference signal of the loop. The automatic calibration system becomes available for a quick selection of a channel frequency even in an application such as a cellular phone necessary to change a frequency within several microseconds.
Patent KR-20030018929-A (KR)
Title: A method for controlling position of a material and a system thereof
Inventor: KIM JONG HEON
IPC: G05B19/41
Filed: 2001-08-31
Abstract: PURPOSE: A system for interpolating a circular arc for position control and a method thereof are provided, which restricts a locus movement speed of a controlled device on the basis of a tolerance error and a tolerance centrifugal force. CONSTITUTION: The system for interpolating a circular arc includes an x-direction motor(210) and a y-direction motor(220) moving a controlled device toward x-axis direction and y-axis direction of a rectangular coordinate system. The x-direction motor and the y-direction motor are driven by a control signal of an electronic control unit(250), and the electronic control unit is a microprocessor operated by a set program, and the set program comprises a series of commands realizing the circular arc interpolation method. The x-direction motor and the y-direction motor comprises encoders(230,240) respectively and transmit a signal as to position movement of the controlled device to the electronic control unit.
Patent KR-20020019420-A (KR)
Inventor: KATO YOSHIHISA
IPC: G11C11/22
Filed: 2001-09-05
Abstract: PURPOSE: Method for driving semiconductor memory is provided to improve the retention characteristic of a semiconductor memory and stabilizing the operation of a reading transistor. CONSTITUTION: In the first memory cell block, a plurality of ferroelectric capacitors(CF11,CF12,CF13,CF14) each for storing a data in accordance with displacement of polarization of a ferroelectric film thereof are respectively connected to a plurality of cell selecting field effect transistors (hereinafter simply referred to as the cell selecting transistors)(Q11,Q12,Q13,Q14) in series, so that a plurality of memory cells each composed of each of the ferroelectric capacitors and a corresponding one of the cell selecting transistors are connected to one another in parallel.
Patent KR-20030022613-A (KR)
Title: System for preventing occurrence of a missing child
Inventor: SONG GWANG SEON
IPC: G08B21/02
Filed: 2001-09-11
Abstract: PURPOSE: A system for preventing a lost child is provided to seize the position of the lost child in a real time when the guardian is at another place by notifying the position of the lost child through the Internet thereby preventing the lost of the child. CONSTITUTION: A system for preventing a lost child includes a position tracking device(12) for receiving the global positioning system(GPS) signal of the GPS satellite(11) and for sending the wireless signal together with the intrinsic identifying signal of the received GPS, a server system(13) for calculating the current position of the corresponding position tracking device(12) by receiving the sent position signal from the position tracking device(12), Internet(14) for connecting a plurality of user's systems(15) to the server system(13) and the plurality of user's systems(15) for obtaining the position information by connecting the server system(13) through Internet(14) by the user.
Patent KR-20030023808-A (KR)
Title: a coating process of motor for a refrigerant regenerative-apparatus
Inventor: PARK SANG HYUN
IPC: C23C8/24
Filed: 2001-09-14
Abstract: PURPOSE: A process for treating film of motor for refrigerant regenerating system is provided to increase life cycle of the motor and maximize efficiency of the refrigerant regenerating system by uniformly covering nitride film on the inner wall of the motor and compressor and coil mounted inside the motor to improve hardness and wear resistance. CONSTITUTION: The process for treating film of motor for refrigerant regenerating system comprises first heat treatment process(10) of loading the motor for refrigerant regenerating system into a high temperature heat treatment chamber and heating the motor; impurity removing process(20) of removing impurities such as oil adsorbed into the motor after completing the first heat treatment process(10); cooling heating second heat treatment process(30) of repeating 7 to 12 times the process of heating the motor by moving the motor to the high temperature heat treatment chamber after cooling the motor by moving the motor to a low temperature heat treatment chamber after completing the impurity removing process(20); first gas treatment process(40) of loading the motor into a gas chamber after completing the cooling heating second heat treatment process(30), and injecting liquefied nitrogen, high purity nitrogen, low purity nitrogen, oxygen and hydrogen into the gas chamber; second gas treatment process(50) of injecting liquefied nitrogen, high purity nitrogen, low purity nitrogen, oxygen and hydrogen into the gas chamber after completing the first gas treatment process(40); third gas treatment process(60) of injecting high purity nitrogen, low purity nitrogen and oxygen into the gas chamber after completing the second gas treatment process(50); and fourth gas treatment process(70) of injecting low purity nitrogen and oxygen into the gas chamber after completing the third gas treatment process(60).
Patent KR-20020024533-A (KR)
Inventor: ISHIKAWA HANJI
IPC: B21C37/16
Filed: 2001-09-20
Abstract: PURPOSE: A metal pipe with an eccentrically expanded open end free from cracks and necking, by formation of a coaxially expanded open end, which is elongated along an axial direction of the metal pipe at a side to be eccentrically expanded longer than the opposite side to be expanded without eccentricity is provided. CONSTITUTION: The method of manufacturing a metal pipe with an eccentrically expanded open end comprises the steps of forcibly inserting a coaxially expanding punch(10) into an open end of an original metal pipe(M), so as to plastically deform said open end to such the coaxially expanded state that a side to be eccentrically expanded is longer than the opposite side to be expanded without eccentricity along an axial direction of said original metal pipe(M); withdrawing said coaxially expanding punch(10) from said original metal pipe; and then forcibly inserting an eccentrically expanding punch, which has a boundary(13) between a conical tip(11) and a cylindrical body(12) inclined with a predetermined angle(α) with respect to a radial direction of said original metal pipe so that said cylindrical body(12) comes in contact with an inner wall of the coaxially expanded open end at the side to be eccentrically expanded earlier than the opposite side to be expanded without eccentricity, into the coaxially expanded open end of said original metal pipe so as to plastically deform said open end to an eccentrically expanded state.
Patent KR-20030033098-A (KR)
Title: organic electroluminescence device of dual scan structure
Inventor: KIM CHANG NAM
IPC: G09F9/30
Filed: 2001-10-18
Abstract: PURPOSE: An organic electroluminescence display device is provided to reduce costs for chip bonding, while achieving improved stability of the device and reliability of the driving chip. CONSTITUTION: An organic electroluminescence display device comprises a plurality of pixels defined by the area where the first electrode and the second electrode cross with each other. The two pixel arrays adjacent with each other among the pixel arrays arranged in one direction are simultaneously scan driven. The organic electroluminescence display device includes barrier ribs(7) for dividing the data line electrically connected to the first electrode, into two parts in a widthwise direction. Each pixel array has one barrier rib so as to electrically insulate the second electrode.
Patent KR-20020066942-A (KR)
Title: Refrigerant compressor
Inventor: HIRUMA YOSHIAKI
IPC: F16K15/16
Filed: 2001-10-26
Abstract: PURPOSE: To provide a delivery valve device for a refrigerant compressor capable of improving responsiveness of the delivery valve while holding strength of a valve presser plate, workability, and completed shape accuracy without increasing the board thickness. CONSTITUTION: The valve presser plate 81 is provided with a circular through hole 81c in its head part 81a wider than its intermediate part on a side where a valve lid 80a of the delivery valve 80 is abutting on the plate. Hence, a back pressure is favorably applied to the valve lid 80a so that the delivery valve 80 is easily separated from the abutment surface of the valve presser plate 81 by the back pressure, thereby improving the responsiveness.
Patent KR-20030034854-A (KR)
Title: Retardable epoxy resin modified with phosphorus and silicon
Inventor: CHOI BONG GU
IPC: C08G59/20
Filed: 2001-10-29
Abstract: PURPOSE: A phosphorus and silicon modified flame retardant epoxy resin is provided, to improve the flame retardancy of the epoxy resin applied to the preparation of a printed circuit board, without introducing halogen. CONSTITUTION: The phosphorus and silicon modified epoxy resin is prepared by reacting an epoxy resin selected from the group consisting of a bisphenol A epoxy resin, a bisphenol F epoxy resin, a bisphenol S epoxy resin, a bisphenol M epoxy and a bisphenol AD epoxy resin, with a compound represented by the formula 1 to obtain a phosphorus modified epoxy resin; and reacting the phosphorus modified epoxy resin with the compound represented by the formula 3, wherein x, y and z are 0, 1 or 2, respectively. The content of phosphorus is 1.0-3.2 wt% and the content of silicon is 0.5-2.2 wt% in the phosphorus and silicon modified epoxy resin.
Patent KR-20010112149-A (KR)
Title: 이형 선재의 교정 및 절단장치
Inventor: YOO BYONG SEOP
IPC: B21F1/00
Filed: 2001-10-30
Abstract: 본 발명은 선재의 압연공정에서 권취보빈에 감겨있는 스테인레스 등의 이형 선재를 곧게 펴서 일정길이로 절단하는 이형 선재의 교정 및 절단장치에 관한 것이다. 
     권취보빈(6)에 감겨있는 이형선재(9)를 이동시키는 구동롤러부(20)와; 상기 구동롤러부(20)로부터 나오는 이형선재(9)의 상하 굴곡을 교정하는 제1가이드롤러부(40)와; 상기 제1가이드롤러부(40)로부터 나오는 이형선재(9)의 전후 굴곡을 교정하는 제2가이드롤러부(60)와; 상기 제2가이드롤러부(60)로부터 나오는 이형선재(9)를 일정길이로 절단하는 절단기(80)와; 상기 제2가이드롤러부(60)로부터 나오는 이형선재(9)를 받아 감속위치에 오면 그 위치에서 구동롤러부(20)가 감속을 시작하고, 이형선재(9)가 정지위치에 오면 그 위치에서 구동롤러부(20)가 정지하여 그 신호를 절단기(80)에 전달하는 일정길이 세팅부(100)를 포함하는 것이다. 
     본 발명에 의하면, 권취보빈에 감겨있던 이형선재를 이송을 하면서 간단한 구조로 곧게 교정함과 동시에 일정한 길이로 절단할 수 있으며, 구동롤러의 위치를 전후로 변경함으로써 다양한 형상 및 치수를 가진 이형선재를 하나의 장치에서 교정 및 절단할 수 있는 효과가 있다.
Patent KR-20030035130-A (KR)
Title: Device for preventing shifting of brake pedal in conflicting
Inventor: KOO YUN TAE
IPC: B60T17/18
Filed: 2001-10-30
Abstract: PURPOSE: A push preventive apparatus for a brake pedal at a collision is provided to restrict the brake pedal from being pushed inward, and to protect the lower body of a driver by holding the lower part of a brake lever with a wire in pushing a dash panel to the driver at a head-on collision. CONSTITUTION: A push restricting device of a brake pedal(3) comprises a wire(11) holding the lower part of the brake pedal pushed back at a head-on collision, and a flexible tube(13) surrounding the wire. Ends of the wire and the flexible tube are fixed in the rear lower part of the brake pedal, and fastened in a lower part(9a) of a front side member through a dash panel(1). An end member is inserted to a fitting groove of the brake pedal, and supported by a bush. The brake pedal is restricted from being pushed, and a driver is protected by holding the lower part of the brake pedal with the wire.