baber/WOPTO huggingface dataset:
Patent KR-19990072258-A (KR)
Title: 센서레스모터드라이버
IPC: H02P6/18
Filed: 1999-01-15
Abstract: 브러시레스 모터의 회전주파수 대역(帶域)을 떨어뜨리지 않고, 브러시레스 모터의 회전특성의 안정화를 도모한 센서레스 모터드라이버(sensorless motor driver)를 제공한다. 
     센서레스 모터드라이버는, 브러시레스 모터(8)의 각 상(各相)에서 발생하는 역기전압 Vu , Vv , V w 및 중점전압 V N 을 취합하여 노이즈를 포함한 구형파신호(矩形波信號) Pu, P V, P W 를 생성한다. 
     그리고, 마스크(mask)신호생성회로(5)로부터 출력되는 노이즈 마스크신호 V MASK 에 의해서 마스크회로(2)에서 신호 Pu, P V, P W 의 마스크를 행하고 있다. 
     마스크 된 신호 P U   , , P V   ,   , P W   ,   , 에 기초하여 브러시레스 모터(8)에 구동전류를 공급한다. 
     또한, 센서레스 모터드라이버는   출력전류검출회로(7)에서 상기 구동전류를 검출하고, 그 구동전류에 기초하여 마스크신호 생성회로(5)에서는 노이즈 마스크신호 V MASK 의 노이즈 마스크기간을 가변한다.
Patent KR-20000051028-A (KR)
Inventor: SHIN KEUN HO
IPC: H04B10/079
Filed: 1999-01-18
Abstract: PURPOSE: An optical filter and a device and method for supervising an optical channel using an optical filter are provided to analyse the spectrum of an optical signal with Wavelength Division Multiplexing(WDM) in a WDM optical transmission system. CONSTITUTION: An optical filter and a device and method for supervising an optical channel using an optical filter includes followings. An incident unit(200) outputs optical signals with Wavelength Division Multiplexing(WDM) coming through an optical medium to have different incident angles. A filtering unit(210) receives the optical signals with different incident angles from the incident unit(200) and separates the optical signals with WDM according to wavelengths using the variation of the resonance length according to the incident angles. A detecting unit(230) detects the strength of the separated optical signals and transforms the optical signals into electronic signals.
Patent KR-20000051046-A (KR)
Inventor: CHAE YUN SUK
IPC: C23C16/00
Filed: 1999-01-18
Abstract: PURPOSE: A method for supplying a gas to a reaction chamber and an improved shower head used for the method are provided to prevent a generation of undesirable particles caused by reactions of different gases in the shower head without lessening a deposition rate. CONSTITUTION: A shower head(60) includes a first and a second gas supply lines(62,64) and fuzzy gas supply lines(68) each respectively connected to each gas supply line(62,64). The first gas supply line(62) is extended to plural first outlet holes(72) peripherally disposed in the bottom surface of the shower head(60), whereas the second gas supply line(64) is extended to plural second outlet holes(74) centrally disposed in the bottom surface of the shower head(60). The first and the second gas supply lines(62,64) are separately introduced into the shower head(60), and further independently connected to the first and the second outlet holes(72,74) so that gases supplied from the respective supply lines(62,64) may not mix with each other in the shower head(60).
Patent KR-20000051962-A (KR)
Inventor: LEE GYEONG JAE
IPC: B41J19/18
Filed: 1999-01-28
Abstract: PURPOSE: A method is provided to automatically align the printing start position of a cartridge for calibrating deviation of a printing start position. CONSTITUTION: A distance(L1) is a moving distance after a carriage(14) passes through an out-position unit(28). A distance(L2) is a moving distance until the carriage is placed in an in-position unit(26) from the out-position unit. The distance(L2) is subtracted from the distance(L1). The carriage is automatically calibrated for the printing start position as much as the difference between the set value of the in-position unit and the out-position unit and the difference between the L1 and the L2.
Patent KR-19990037841-A (KR)
Title: 반도체칩성형기의리드프레임자동공급방법및장치
Filed: 1999-02-02
Abstract: 본 발명은 반도체의 여러 제조공정 중 칩의 조립 후 성형공정을 수행하기 위하여 리드프레임을 자동으로 공급하기 위한 것으로서, 특히 2열 형태인 1쌍의 리드프레임을 정위치로 동시에 자동으로 공급하기 위한 방법 및 장치에 관한 것이다. 
     종래의 경우 칩 성형단계를 수행하기 위한 칩 성형단계 이전의 공정단계에서 여러 가지 급송상의 문제로 인해 거치대 상부로 1쌍의 리드프레임이 완벽하게 공급되어 존재하지 못하고 단일의 리드프레임만이 존재하게 될 경우, 픽스쳐까지 급송되어야 할 급송작업이 중단되고 결국 생산라인의 작업이 전면 중단되는 중대한 문제가 발생하게 되었다. 
     본 발명은 이러한 문제점을 해소하고자 반도체 칩의 성형시 급송되는 리드프레임이 2라인 동시급송형태로 이루어지되, 한쌍의 매거진 또는 단일의 매거진으로부터 리드프레임을 인출하거나에 관계없이 활용이 가능하고, 한쌍의 매거진으로부터 리드프레임을 동시에 인출하는 경우 한쌍의 매거진 내부에 리드프레임의 수효가 서로 달라 어느 일측 매거진의 리드프레임이 먼저 소진되거나, 아니면 어느 일측 매거진 내부의 중간부에 일부 리드프레임이 누락되어 한쌍이 동시에 인출되지 못하는 경우와 같이 급송상 에러가 발생할 요인이 있는 경우에도 활용이 가능하도록 한 것에 그 특징이 있다.
Patent KR-20000055221-A (KR)
Inventor: LEE JAE HUEN
IPC: C08L29/10
Filed: 1999-02-04
Abstract: PURPOSE: A polyphenylene ether thermoplastic resin composition that has improved intersurfacial adhesion and excellent physical properties such as tensile strength and impact resistance by applying modified vinyl aromatic graft copolymer to a polyphenylene ether matrix resin and inorganic reinforcing material is provided. CONSTITUTION: A polyphenylene ether thermoplastic resin composition comprises : (A) a matrix resin 50-95 wt.%, a mixture of 30-100 wt.% of polyphenylene ether resin and 0-70 wt.% of vinyl aromatic polymer, (B) 1-50 parts by weight of modified vinyl aromatic graft copolymer produced by melting, mixing, and grafting 100 parts by weight of graft copolymer, wherein 1-80 wt.% of rubbery polymer and 20-99 wt.% of aromatic vinyl monomer, and (C) 5-50 parts by weight of inorganic reinforcing material.
Patent KR-19990077419-A (KR)
Title: 다이나믹백업기능을갖는위상동기루프회로
IPC: H03L7/183
Filed: 1999-02-10
Abstract: 다이나믹 백업 기능을 갖는 위상 동기 루프(phase-locked loop circuit)가 개시되어 있다.  다이나믹 백업 기능을 갖는 위상 동기 루프 회로는 위상 비교기, 저역 통과 필터, 전압 제어 발진기, 및 검출 회로를 포함한다.  위상 비교기는 입력 기준 신호와 피드백 출력 신호 간의 위상차를 나타내는 전압 신호를 생성하기 위해 입력 기준 신호와, 위상 동기 루프 회로의 출력으로부터의 피드백 출력 신호를 비교한다.  전압 신호가 저역 통과 필터에 의해 필터링된 후에, 필터링된 전압 신호는 피드백 출력 신호를 생성하기 위해 전압 제어 발진기로 전송된다.  위상 동기 루프 회로가 입력 기준 신호와 동기되어 있는지 여부를 검출하는 검출 회로가 위상 비교기에 연결된다.  위상 동기 루프 회로가 입력 기준 신호와 동기되어 있지 않다는 판정에 응답하여, 검출 회로는 입력 기준 신호가 위상 비교기, 저역 통과 필터, 및 전압 제어 발진기를 바이패스(bypass)하도록 한다.
Patent KR-20000061575-A (KR)
Inventor: OH JI SEONG
IPC: H04L25/03
Filed: 1999-03-27
Abstract: PURPOSE: A blind channel equalizer is provided to eliminate an inverse transformer for equalizing a blind channel and preventing a NTSC(national television system committee) interference signal, thereby simplifying a hardware structure thereof. CONSTITUTION: The blind channel equalizer comprises a comparator(210) for comparing a received symbol with a boundary level value determined a generation probability distribution of VSB(vestigial sideband) symbol level when driving a NTSC rejection filter, a blind coefficient assigning portion(220) for assigning one of three blind coefficients according to the result output from the comparator, and a subtracter(230) for subtracting the received symbol and the output result of the blind coefficient to output a blind error. In the equalizer, the coefficient assigning portion assigns one of the three blind coefficients of plus 10.5, 0, minus 10.5 responding to the VSB symbol level. The blind channel equalizer is applied to a channel equalizer when using a partial response in a data transmitting/receiving system.
Patent KR-20000066845-A (KR)
Inventor: RYU HEE SOO
IPC: A01K1/01
Filed: 1999-04-21
Abstract: PURPOSE: An apparatus for treating waste water for cattle shed is provided, which recycles the waste heat generated during the treatment and prevents water pollution or environmental pollution by evaporation-treating waste water. CONSTITUTION: The apparatus comprises a waste water collection tank(10) where waste water is collected; an evaporation treatment part(6) which evaporates the waste water from the collection tank(10); a warm water circulation line(7) which is connected with the evaporation treatment part(6) and operated by the waste heat ejected from the evaporation treatment part(6); wherein the evaporation treatment part(6) comprises a treatment bath(8); a plurality of evaporation plates(9,10,11,12) which are arranged in the treatment bath(8) by vertical multi-stage; and a plurality of evaporation means(14) which are contained in the evaporation plates.
Patent KR-20000066931-A (KR)
Inventor: KIM JONG HWAN
IPC: H04L13/00
Filed: 1999-04-22
Abstract: PURPOSE: Internet direct control system of a remote moving robot is provided to make an operator to directly control a motion of a moving robot even if the moving robot cannot find a target point by oneself. CONSTITUTION: Internet direct control system of a remote moving robot mounts both a control input loss preventing part and a path regulation part to a moving robot(340). The control input loss preventing part prevents a loss caused by Internet time delay of a control input transmitted via Internet(200). The path regulation part adjusts a control input from the control input loss preventing part by using an operator's desired path, and inputs the control input to the moving robot. The moving robot feeds back a current image information and attitude information to a virtual robot of a simulator(130). The operator inputs a control input to a simulator's virtual robot on the basis of feedback information, and transmits it to the moving robot, thereby directly controlling a moving robot of a remote place.
Patent KR-20000067096-A (KR)
Inventor: MUN JAE YEON
IPC: H01L27/10
Filed: 1999-04-23
Abstract: PURPOSE: A capacitor is provided to obtain a high capacity by increasing a surface area and improving a vacuum condition using a rugged polysilicon for a storage electrode thereof. CONSTITUTION: A capacitor is carried out by forming a first interlayer insulating film on the front of a substrate after forming a first gate to a fourth gate spaced each other on the substrate, forming a second interlayer insulating film after alternatively etching the first interlayer insulating film and filling out a conductive material to form first and second plugs, forming third to sixth interlayer insulating films after etching the second interlayer insulating film and patterning a wired material to form a bit line, forming a first conductive layer up to the upper portion of the sixth interlayer insulating film to fill out a contact hole which is formed by etching the third to sixth interlayer insulating films so as to expose the first and second plugs, forming a second conductive layer and a rugged polysilicon film in turn after forming an insulating film on the upper portion of the first conductive layer having first and second plugs, forming a side wall of the insulating film through an etch-back after forming a high temperature and low pressure insulating film on the upper portion of the rugged polysilicon film, etching the sixth interlayer insulating film after etch-back of the rugged polysilicon film and second conductive layer, and forming a third conductive layer after removing the insulating film pattern, the side wall of the insulating film and the fifth interlayer insulating film to a dielectric film on a surface of the first and second conductive layers.
Patent KR-19990088625-A (KR)
Title: Data modulation method, and related modulator and demodulator devices
IPC: H04L27/26
Filed: 1999-05-28
Abstract: In a single-carrier or multi-carrier modulator (MOD), data symbols are modulated on at least one carrier in accordance with at least one constellation scheme. Idle data symbols are replaced by null data symbols and the latter null data symbols are associated with a low power constellation point of the at least one constellation scheme. The constellation points associated with the data symbols are randomly transformed into constellation points of equal power. In this way, idle data symbols are transferred with minimised power and sufficiently randomised to allow equaliser training and/or tracking at the receiving demodulator (DMOD) and to avoid high crest factors in multi-carrier systems. <IMAGE>
Patent KR-20010001121-A (KR)
Inventor: KIM SU TAE
IPC: C22B15/00
Filed: 1999-06-02
Abstract: PURPOSE: A method for preparation of phosphorus copper from wastes water including chloro copper is provided which enables to obtain phosphorus copper in high yields and to provide protection of environment and more improved working environment. CONSTITUTION: Phosphorus copper is prepared from waste solution including chloro copper, by the following steps of: (a) reacting sodium phosphate with waste water at room temperature, to obtain copper phosphate; (b) mixing the resultant with copper powder and reductant such as molasses and wheat flour; and (c) reacting the mixture at high temperature, preferably, at 800-950 deg.C.
Patent KR-20010001474-A (KR)
Inventor: PARK GYU CHANG
IPC: A47L9/04
Filed: 1999-06-04
Abstract: PURPOSE: A brush for duster cleaning of vacuum cleaner is provided to wipe the floor clean with a duster by the vibration which is generated by the suction force of pan motor, so that the dust of air and the dust stuck on the floor are removed. CONSTITUTION: A brush for duster cleaning of vacuum cleaner comprises; a base plate(110) in which a duster(101) for clean of floor is placed; a cover(140) which is installed in upper side of base plate, and has a connection pipe(146) to connected a suction pipe of cleaner to a space formed in between base plate and cover; a driving pan(130) which is installed in the space, and driven by a suction force of cleaner operated through the connection pipe; an eccentric cam(120) which is installed in upside of base plate to be rotated by the driving pan, and generates the vibration on base plate so that the duster cleans the floor; and a contacting device(160) which improves the dust removability of duster by contacting the base plate and the duster on floor when the suction force of cleaner starts operating.
Patent KR-20000006282-A (KR)
Inventor: PAUL R KILMER
IPC: H05K3/34
Filed: 1999-06-18
Abstract: PURPOSE: A disordering tool is provided to contain an excellent electric power controlling function for increasing the electric power from a motor. CONSTITUTION: A disordering tool comprises:an electric power switch(35); a heating tip(20); a first commutator arranged in series with the heating tip; an electric motor(50) connected to a vacuum pump; and a second commutator arranged in series with the electric motor. The electric power is supplied to the heating tip through the first commutator regardless of electric power supply to the electric motor while the electric power switch is on.
Patent KR-20010008728-A (KR)
Inventor: MUN TAE UK
IPC: H04B1/40
Filed: 1999-07-02
Abstract: PURPOSE: An apparatus for changing fonts of display characters in a portable terminal is provided, so that a user can change a font of a display character into a required font, by using an external font data memory without expanding an internal font memory. CONSTITUTION: A communication port(10) sets up a font data transmission link with an external font storage for storing display character font data. An input/output memory(26) temporarily stores font data transmitted through the communication port(10). A font data memory(12) stores the display character font data. A controller(24) deletes the display character font data of the font data memory(12), according to a display character font changing command, and stores the font data stored at the input/output memory(26) in the font data memory(12).
Patent KR-20010009009-A (KR)
Inventor: JUNG GWANG HO
IPC: H04M1/02
Filed: 1999-07-06
Abstract: PURPOSE: An automatic fold type mobile terminal is provided to open and shut automatically a flip and a folder of a mobile terminal by only switching an operation of a user. CONSTITUTION: An open/shut apparatus is formed in a main body to automatically open/shut a sub-body. A switch is located at a predetermined position of the main body to drive the open/shut apparatus. A detector detects a driving angle of the open/shut apparatus. A controller analyzes an output of the detector and controls a rotation of the open/shut apparatus by a certain open/shut angle. A certain penetration hole(12) is formed in one side of a box type module housing(11). A deceleration module(40) is fixedly inserted into the module housing(11). A sub-body combination unit(53) is fixed at an end side of a driving shaft(50) of the deceleration module(40), and is fixed at one or both sides of the sub-body so that a portion projects on the penetration hole(12) of the module housing(11).
Patent KR-20010010768-A (KR)
Inventor: HWANG SEONG TAEK
IPC: H04B10/294
Filed: 1999-07-22
Abstract: PURPOSE: A long wavelength band optical fiber amplifier using feedback loop is provided to increase the amplification efficiency in a long wavelength band. CONSTITUTION: A forward and a backward pump laser diode(207,208), which are mounted in both ends of a rare earth doped fiber(203), generate a pumping light. First wavelength selective couplers(202,204) provide the pumping light to the rare earth doped fiber(203). An optic isolator(209), inserted between the first wavelength selective couplers(202,204), which isolates the backward flow of a signal light reflected from the input and output terminals of an optical fiber amplifier. A feedback loop puts a seed beam into the rare earth doped fiber(203) or puts an amplified spontaneous emission(ASE) into the rare earth doped fiber(203) again. Second wavelength selective couplers(201,205) puts the seed beam into the feedback loop or abstracts the amplified spontaneous emission(ASE) through the feedback loop. A filter(210) filters the special wavelength of the seed beam or the amplified spontaneous emission(ASE).
Patent KR-20010011483-A (KR)
Inventor: KOO BON JAE
IPC: G11C11/22
Filed: 1999-07-28
Abstract: PURPOSE: A nonvolatile-ferroelectric random-access-memory device and a method for reading data therefor are provided to prevent applied voltages to bit lines for dropping within a sense operation. CONSTITUTION: The device includes the first bit lines(BL1_T through BLi_T), memory cells, the second bit lines(BL1_B through BLi_B), the first charge dumpers(28), the second charge dumpers(30). The memory cells are connected to the first bit line. The second bit lines correspond to the first bit lines. The first charge dumpers(28) are connected to the first bit lines(BL1_T through BLi_T). The second charge dumpers(30) are connected to the second bit lines(BL1_B through BLi_B). The first and second charge dumpers(28,30) sense voltages between the first and second bit lines. The voltage riser rises the voltages between the first and second bit lines before the first and second charge dumpers(28,30) are activated.
Patent KR-19990083789-A (KR)
Title: 마우스패드제조 방법
IPC: G06F3/039
Filed: 1999-08-04
Abstract: 본 발명은 특히 기존의 마우스패드(mouse pad) 보다 두께가 얇으면서도 바닥면과 밀착력이 우수하여 마우스의 성능을 향상시킨 마우스패드제조 방법에 관한 것으로서, PVC 또는 P.P 또는 종이 등으로 이루어진 마우스접촉부재(10)를 적당한 크기로 절단한 후, 상기 마우스접촉부재(10)의 하단부에 사용자가 원하는 그림이나 광고내용을 옵셋인쇄부(20)에 옵셋인쇄방식으로 인쇄하고, 상기 옵셋인쇄방식에 의한 그림 등이 선명하게 보이도록 백색인쇄부(30)에 인쇄를 하며, 상기 백색인쇄부(30)의 후면에 접착보강부재(40)를 도포한 후 바람직하게 실리콘이 80 내지 85 중량%이고, 경화제가 5 내지 10중량%이고, RTV가 5 내지 10 중량%로 구성되어 있는 바닥접착부재(50)를 스크린(screen)인쇄방식으로 접착하는 것을 특징으로 하는 발명이다.
Patent KR-20010018912-A (KR)
Inventor: LEE SANG IN
IPC: F16K31/12
Filed: 1999-08-23
Abstract: PURPOSE: An automatic flow rate control valve device is provided to achieve the effective utilization of space by eliminating an additional space for the installation of a refill water tank. CONSTITUTION: A device comprises a main body having a water inlet(11) formed at the lower end of the main body, a direct water inlet(13) formed inside the upper end of the main body and a water outlet(12) formed at the external end so as to pack-coupled to a supply pipe(14); an open/shut-off member(20) mounted in such a manner as to conceal the upper portion of the direct water inlet of the main body and which is transformed/restored by the pressure of direct water; a cylindrical valve(30) positioned onto the open/shut-off member and having a magnetic member(31) arranged at the upper end of the cylindrical valve and a pressing member(32) arranged at the lower end of the cylindrical valve; a lower cover(40) having the cylindrical valve inserted into the lower cover and forming a spring insertion hole(42) formed inside the upper center of the lower cover; an adjusting member(90) loaded into the upper cover and inserting the cylindrical valve into the central portion of a cylindrical magnetic member(91); and an upper cover(50) to which a pressure reducing diaphragm(51) is coupled by a packing so as to form a pressure reduction chamber(52).
Patent KR-20000022758-A (KR)
Inventor: KATO MASASHI
IPC: G06F3/06
Filed: 1999-08-25
Abstract: PURPOSE: A disk driving apparatus is provided to perform an update of control information stored in a read only memory. CONSTITUTION: A disk driving apparatus comprises a general purpose interface part(6) and a central processing unit(2). The general purpose interface part(6) is selectively connected to a disk rotation driving part(2), ROM(4) capable of updating control information, and a host control apparatus(10) disposed at the exterior. The central processing unit(2) controls an operation of each element according to the control information. The central processing unit(2) update the control information stored in the ROM(4) with new control information when a control information update command and the new control information from the host control apparatus is supplied to the central processing unit(6) via the general purpose interface part(6).
Patent KR-20000022898-A (KR)
Title: Pll circuit
Inventor: AOKI HIROYUKI
IPC: H04N1/387
Filed: 1999-09-03
Abstract: PURPOSE: A PLL(phase locked loop) circuit is provided to rapidly charge up/down the potential of the output of charge pump(CP) in period having large phase difference between input and output clocks and operate only first PFD and CP in period having small phase difference, thereby speed up lock time. CONSTITUTION: A PLL circuit comprises a first phased frequency divider(PFD), a second PFD, a first charge pump(CP) and a second CP. The first PFD forms a narrow dead zone period which does'n't detect phase difference between an input clock(CLK) and a feedback clock(CLK). The second PFD forms a wider dead zone period which does'n't detect phase difference between the input clock(CLK) and the feedback clock(CLK). The first CP is connected to the first PFD and consists of a transistor having small ON current. The second CP is connected to the second PFD and consists of a transistor having large ON current.
Patent KR-20010027071-A (KR)
Inventor: CHOI WON SEOK
IPC: F24F1/00
Filed: 1999-09-10
Abstract: PURPOSE: A cross flow fan for air conditioner is provided in which arrangement of blades of the fan is improved, to thereby reduce noise and vibration caused by the rotation of blades CONSTITUTION: A cross flow fan(10c) is mounted in an indoor unit of an air conditioner, and has a plurality of blades for circulating the indoor air. Blades form into groups consisting of equal numbers of blades, and blades of each group are arranged in such a manner that the angle of the adjacent blade increases. Each group of blades has equal arrangement pattern. Thus, noise caused by the rotation of blades is significantly reduced, while minimizing angle change between two adjacent blades which are non-uniformly arranged.
Patent KR-20010027214-A (KR)
Inventor: KIM SEON DONG
IPC: H01L21/60
Filed: 1999-09-11
Abstract: PURPOSE: A method for manufacturing a chip size package of a wafer level is provided to perform a process at high speed for mass-producing the chip size packages, by substituting a mechanical sawing process for the second etching process of a conventional technique. CONSTITUTION: A chip pad(1a) is adhered to an upper surface of a semiconductor chip(1) of a wafer state, and photosensitive polymer(2) which is polymer resin of a silicon material is coated on the chip. The chip pad is exposed by an etch process for eliminating a part of the photosensitive polymer with etching liquid. A metal pattern(11) is formed on the chip pad and the photosensitive polymer by sputtering. A solder mask(4) is coated to protect the metal pattern. A sawing groove is formed to expose the metal pattern by a sawing process for sawing a part of the solder mask. A reflow process is performed by placing solder ball paste and a solder ball on a disc-type metal pattern exposed to the sawing groove.