baber/WOPTO huggingface dataset:
Patent KR-19990036722-A (KR)
Title: 기록매체의 장착장치
IPC: G11B33/12
Filed: 1998-09-30
Abstract: (과제) 디스크 패키지에 장착된 메모리 보드와 확실하게 접속할 수 있는 접점단자기구는 존재하지 않았다. 
     (해결수단) 디스크 패키지 (P) 를 삽입구 (A1) 에서 X1 방향의 장전영역 (B)  으로 장전시키면,  가장자리부 (1g) 가 이동 플레이트 (14) 의 받이부 (14b) 에 맞닿아 (가) 에서 (나) 의 위치로 함께 이동한다.     이 때,  이동 플레이트 (14) 의 밀어올림편 (14e) 이 접점기구부 (20) 의 피밀어올림부를 Z2 방향으로 누르기 때문에,  접점기구부 (20) 가 β2 방향으로 회전운동되어 (다) 에서 (라) 의 상태가 된다.     따라서,  접점 (26a) 이 디스크 패키지 (P) 의 접속단자 (3) 에 맞닿기 때문에 전기적으로 접속된다.     또한, 디스크 패키지 (P) 의 장전완료직전에 맞닿으므로,  접점 (26a) 이 접속단자 (3) 위를 약간 슬라이딩한다.     따라서, 접점 (26a) 과 접속단자 (3) 가 서로 스쳐 클리닝되어 접촉불량 등의 문제가 일어나기 어려워 확실하게 접속할 수 있다.
Patent KR-20000021818-A (KR)
Title: Device for recognizing a manuscript edge of a picture reader and a method the same
Inventor: KWAK DONG KEUN
IPC: H04N1/047
Filed: 1998-09-30
Abstract: PURPOSE: A device for recognizing a manuscript edge of a picture reader is provided to prevent wrong recognition of the manuscript edge, caused by errors of manufacturing and fabricating, by exactly recognizing the manuscript edge. CONSTITUTION: A picture reader comprises: a manuscript board; a lamp illuminating an image of the manuscript board; a first scanning carriage on which a first reflective mirror is mounted; a second scanning carriage on which a second, third reflective mirrors for re-reflecting the reflected image from the first scanning carriage are mounted; a light integrating lens for integrating the reflected image from the second scanning carriage; and a lens holder for having a CCD(Charge Coupled Device) sensor. A device for recognizing a manuscript edge of the picture reader sets up a recognition standard plate, for recognizing the manuscript edge of a bottom part of a scale of the manuscript board.
Patent KR-20000021842-A (KR)
Title: Apparatus for installing hard disk driver of portable computer
Inventor: CHOI BYYNG YONG
IPC: G06F3/06
Filed: 1998-09-30
Abstract: PURPOSE: An apparatus for installing a hard disk driver of a portable computer is provided to simply perform the installation work of and the separating work of a hard disk driver by inserting the hard disk driver into an HDD installing groove and by inserting a supporting member into a guide groove. CONSTITUTION: An HDD installing groove(29) is formed on a bottom surface of a keyboard acceptive portion on an upper panel(23) having a base. A guide groove(52) is formed at both side walls of a front portion of the HDD installing groove(29). A plurality of tension members(60) are formed at a certain position of a front portion and a rear portion of the both side walls. A plurality of tension members(60) have a tension flap(62) and a finger(64). A supporting member(70) has a body(72) with a width capable of being inserted into the guide groove(52) on the HDD installing groove(29). A release preventing rib(74) supports an upper portion of a hard disk driver(27) and prevents a release of the hard disk driver(27).
Patent KR-19990036936-A (KR)
Title: 열가소성 수지 경화막의 제조 방법
IPC: G03F7/09
Filed: 1998-10-08
Abstract: 본 발명은 저유전율로 평탄도, 내열성, 내용매성, 투명성, 절연성, 프로세스 허용성 등이 우수한 경화막의 제조 방법에 관한 것이다.
Patent KR-19990030343-A (KR)
Title: 재생지를 이용한 무균 깔판 및 그의 제조방법
IPC: D21J3/00
Filed: 1998-10-16
Abstract: 본 발명의 목적은 양계장에서의 오물수거용 바닥재와 부화된 병아리 이송용 상자의 바닥재로 사용하기에 적합한 재생지를 이용한 무균 깔판과 그의 제조방법을 제공하는데 있다. 
     상기 목적을 달성하기 위한 본 발명의 기술적 구성은 폐지를 가공 처리하여 제조되는 재생지를 요철이 형성된 롤에 압착 통과시켜 재생지 표면에 요철부를 형성한다는데 특징이 있다. 
     이러한 본 발명의 깔판은 수분의 흡수가 용이하고 미끄럼 현상을 방지할 수 있으며 표면이 부드러워 양계장의 바닥재 또는 병아리 이송시의 바닥재로 사용하기에 매우 적합하다.
Patent KR-20000026048-A (KR)
Title: Feeding trough for honeybee
Inventor: JANG BONGHWAN
IPC: A01K53/00
Filed: 1998-10-17
Abstract: PURPOSE: Feeding trough is provided which can easily feed pollen and the feeding which can be used as a substitute for pollen to honeybee during non honey flow period. CONSTITUTION: Feeding trough comprises a feeding trough(2) for filling pollen; a path forgoing a honeybee in and out; a filter(6) located on bottom of the feeding trough(2) and a case(8) with cover(10) which can be kept pollen for a long time.
Patent KR-20000026601-A (KR)
Title: Method for automatically setting current time of selected area
Inventor: KIM PHIL TAE
IPC: H04N21/462
Filed: 1998-10-21
Abstract: PURPOSE: A method for automatically setting a current time of a selected area is provided to conveniently provide a current time of a selected area to a user. CONSTITUTION: In a method for automatically setting a current time of a selected area, a time information is first detected from digital cast signals(S103), then a current time of the selected area is generated by calculating a time difference between the a time of the selected area and the time information(S104). The generated current time is compared with an actual current time(S106), and if the generated current time is not identical to the actual current time, the current time is reset using the digital cast signals(S107). If the generated current time is identical to the actual current time, the time set is finished.
Patent KR-19990037492-A (KR)
Title: 고융점 금속을 스퍼터링하기 위한 스퍼터링 장치 및고융점 금속을 구비한 반도체 장치의 제조 방법
IPC: C23C14/35
Filed: 1998-10-29
Abstract: 고융점 금속의 실리사이드층을 형성하기 위한 반도체 장치의 제조 방법이 제공되는데, 상기 고융점 금속은 스퍼터링 장치에 의해 어떠한 열화도 발생되지 않는 조건하에서 스퍼터링시 처리된다.  또한 반도체 장치를 제조하기 위한 스퍼터링 장치가 제공된다.  본 발명의 방법에서, 고융점 금속이 반도체 소자의 게이트 전극으로 형성된 실리콘 기판 상에 퇴적되어 고융점의 금속막을 형성하고, 그후 열처리되어 고융점을 갖는 금속막과의 계면에 고융점 금속의 실리사이드층을 형성하는데, 이 경우, 상기 고융점의 금속막은 상기 게이트 전극에 도달하는 전기 부하량 Q이 5 C/㎠ 미만인 조건 하에서 마그네트론 스퍼터링 장치에 의해 스퍼터링 퇴적된다.  또한, 스퍼터링 장치(30)는 타겟에서 타겟 홀더(16)와 접지 단자에 연결된 웨이퍼 홀더(14) 간의 웨이퍼를 향해 통과되는 많은 관통 구멍을 갖는 전기 도전성 재료를 포함하는 콜리메이터 판(32)를 갖는다.
Patent KR-19990037542-A (KR)
Title: 소형 회로의 리던던트 디코더를 구비한 반도체 메모리 장치
IPC: G11C29/00
Filed: 1998-10-30
Abstract: 정규 메모리 셀 어레이, 정규 디코더, 리던던트 메모리 셀 어레이 및 리던던트 디코더를 포함하는 반도체 메모리 장치에 있어서, 상기 리던던트 디코더는 테스트 모드 신호가 공급되는 복수의 리던던트 디코딩 회로를 포함한다.  어드레스 신호의 비트와 상보 어드레스 신호의 대응 비트로 된 적어도 하나의 비트쌍이 역순으로 공급되도록 상기 리던던트 디코딩 회로에 상기 어드레스 신호 및 상기 상보 어드레스 신호가 다른 순서로 공급된다.  상기 리던던트 리코딩 회로 중의 어느 하나가 활성을 나타내는 리던던트 디코드된 신호를 만들 때, 활성을 나타내는 디코드 억제 신호를 생성하기 위하여 상기 리던던트 디코더는 디코드 억제 신호 생성 수단 배열을 더 포함한다.  비활성을 나타내는 상기 디코드 억제 신호에 응답하여, 상기 정규 디코더는 상기 정규 메모리 셀 어레이의 정규 메모리 셀 중의 하나를 구동하기 위하여 상기 어드레스 신호 및 상기 상보 어드레스 신호를 정규 디코드된 신호로 디코드한다.  각각의 리던던트 디코딩 회로는 테스트 퓨즈 소자를 포함하는 테스트 퓨즈 회로를 포함한다.  상기 테스트 퓨즈 회로는 상기 테스트 퓨즈 소자가 절단되지 않을 때 활성을 나타내는 테스트 퓨즈 출력 신호를 생성한다.
Patent KR-20000033666-A (KR)
Title: Method for preventing error operation of compact disk player
Inventor: YOO YONG SIK
IPC: G11B19/20
Filed: 1998-11-25
Abstract: PURPOSE: A method for preventing the error operation of a compact disk(CD) player is provided to prevent a CD driving circuit from being reset due to the impulse of a cathode generated from a vehicle, thereby stably operating the CD player regardless of introduction of a power noise. CONSTITUTION: A method for preventing the error operation of a compact disk(CD) player comprises the steps of: receiving a detected voltage; determining whether the detected voltage is smaller than a minimum value of a set normal voltage; when the detected voltage is smaller than the minimum value, turning an inner timer on; counting time depending on the operation of the inner timer; determining whether the counted time exceeds a set time; when the counted time exceeds the set time, resetting a CD driver; and when the detected voltage is not smaller than the minimum value, turning off the inner timer and returning to the receiving step of the detected voltage.
Patent KR-20000028532-A (KR)
Title: Apparatus for coupling vehicle antenna to antenna for portable phone
Inventor: KIM DEOK YONG
IPC: H01Q1/27
Filed: 1998-12-01
Abstract: PURPOSE: An apparatus for coupling a vehicle antenna to an antenna for a portable phone is to compensate for loss of a transmission line connecting the vehicle antenna with an internal device and thereby improve noise index. CONSTITUTION: An apparatus comprises: a first duplexer(12) connected to a vehicle antenna(1); a second duplexer(15) connected to a transmission line(3) inside the vehicle, for outputting a signal applied from the transmission line to the first duplexer; and a low noise amplifier(13) arranged between the first duplexer and the second duplexer, for amplifying a signal received through the first duplexer without noise and outputting the amplified signal through the second duplexer to the transmission line. The apparatus may further comprise a high power amplifier(14) arranged between the first duplexer and the second duplexer, for amplifying a signal applied through the transmission line and outputting the amplified signal to the vehicle antenna.
Patent KR-20000038580-A (KR)
Title: Shield cup of electric gun for color cathode ray tube
Inventor: KIM GYU HWAN
IPC: H01J29/56
Filed: 1998-12-08
Abstract: PURPOSE: A shield cup of an electric gun for a color cathode ray tube is provided to prevent the HCR miss convergence phenomenon by changing the structure of the shield cup of an electric gun. CONSTITUTION: A body is formed by overlapping cylindrical plates(751) in which a plurality of holes(752) is formed. A rear plate(753) having R, G, B beam passing holes(753a,753b,753c) is formed in an electrode contacting portion of the cylindrical plate located on the most outside among the cylindrical plates. A body is formed by overlapping net-like cylindrical plates(761). A rear plate(762) having R, G, B beam passing holes(762a,762b,762c) is formed in an electrode contacting portion of the cylindrical plate located on the most outside among the cylindrical plates.
Patent KR-20000040432-A (KR)
Title: Non-directional electronic steel sheet with insulating coat of excellent coat characteristic, producing method thereof, and material for forming insulating coat to produce electronic steel sheet
Inventor: TAKEDA KAZUTOSHI
IPC: C21D8/12
Filed: 1998-12-18
Abstract: PURPOSE: A method is provided to produce an insulating coat former having excellent insulating coat attaching property and corrosion resistance while having excellent slip characteristic after stress relief annealing and blanking quality and to produce a non-directional electronic steel sheet by coating the insulating coating former to a steel sheet substrate. CONSTITUTION: A non-directional electronic steel sheet substrate is coated by using an insulating coat former for baking the coated steel sheet at a temperature of 200-400°C. Then, a non-directional electronic steel sheet with insulating coat having excellent coat characteristic is produced. Herein, the insulating coat former includes metal phosphate and organic resin as main ingredients. And, the insulating coat former includes 5-50wt% of aqueous organic compound having over 100°C of boiling point.
Patent KR-20000040668-A (KR)
Title: Production method of colored maggot
Inventor: CHOI JONG DUCK
IPC: A01K67/033
Filed: 1998-12-19
Abstract: PURPOSE: A colored maggot is produced by adding coloring matter to maggot feed to overcome the technical problem to produce only white maggot. The color of the colored maggot dose not change during marketing period, and is harmless to animal or human. And it can be used as fishing bait instead of artificial bait. CONSTITUTION: A colored maggot is bred by using wasted organic materials added of food colors for maggot feed. The proper quantity of food colors is 0.5-50g to 1kg of wasted organic materials. The colored maggot is obtained at 26-30°C in 3 days after the egg of blowfly hatches.
Patent KR-20000040770-A (KR)
Title: Method for removing nitrogen oxide using activated carbon as catalyst
Inventor: KIM JE YEONG
IPC: B01D53/56
Filed: 1998-12-19
Abstract: PURPOSE: A method for removing nitrogen oxide contained in a combustion exhaust gas is provided which uses activated carbon that is inexpensive and little influenced by moisture and controls an oxygen concentration to a specified range. CONSTITUTION: A method comprises the steps of oxidizing nitrogen monoxide to nitrogen dioxide under the condition of a reaction temperature of 40 to 75°C and an oxygen concentration of 2 to 10% and dissolving the nitrogen dioxide in water and can remove the nitrogen oxide effectively even at a relatively low temperature and even in a case where moisture is contained in an exhaust gas.
Patent KR-20000041367-A (KR)
Title: Fiber pigtail for optical transmission/reception system
Inventor: KIM NAM SU
IPC: H01L23/58
Filed: 1998-12-22
Abstract: PURPOSE: A fabrication of the fiber pigtail for the optical transmission/reception system is provided by standardizing the process to fabricate and test the fiber pigtail through using the optical device to be formed in a wafer state, so that the manufacturing cost of the optical transmission/reception modules may be reduced, and the electrical and optical characters may be improved. CONSTITUTION: A fabrication method of the fiber pigtail for the optical transmission/ reception system consists of the following steps orderly: the 1st step to cut out a optical device selectively through testing the electrical and optical characters of an optical device bar, after cutting the wafer with the optical device bar of a stick form made with many optical device; the 2nd step to fix the cut optical device on a dielectric substrate; the 3rd step to insulate the optical device from TO header by fixing the dielectric substrate on the top surface of TO header; the 4th step to form a TO package through connecting the pad of the optical device and the pin of the TO header with the wire that is a conductive material; the 5th step to test the electric and optical characters of the TO package; the 6th step to inject a nitrogen gas into the interior package after fixing a lens in order to protect the optical device on the top surface of the TO package; and the 7th step to layer-build the multi-ferrules on the top surface of the TO header in order to protect the lens and to connect the optical fiber to the lens.
Patent KR-20000044714-A (KR)
Title: Coolant collector of air conditioner
Inventor: YUN DEOK WON
IPC: F24F1/06
Filed: 1998-12-30
Abstract: PURPOSE: A coolant collector of an air conditioner is provided to protect environment and reduce the cost by recycling coolant of a disabled air conditioner and to give a user convenience by integrally structuring a vacuum pump and a coolant tub with the coolant collector. CONSTITUTION: A coolant pipe is connected to a coolant collecting pipe(24) of a coolant tub(20) and a coolant injecting pipe(13) of a compressor(10) when an air conditioner is disabled. A valve(V1) is open and a valve(V2) is closed. The compressor is turned on and a divergent valve(V3) is open. Coolant is stored in the coolant tub through the divergent valve. The high temperature and pressure coolant is condensed by exchanging heat through a heat exchanger(21) and converted to liquid coolant. A heat emitting pin(22) accelerates to emit heat and a filter(23) filters impurities. After collecting coolant, the divergent valve is closed and the valve(V2) is open to continually drive the compressor. Then remain the discharged through the valve(V2) and the air conditioner is vacuous.
Patent KR-20000046204-A (KR)
Title: Method for according failure data of base station system
Inventor: JEON SANG YONG
IPC: H04B17/40
Filed: 1998-12-31
Abstract: PURPOSE: A method for according the failure data of the base station system is provided to efficiently accord the data for a failure generated in a BSS(Base Station Subsystem). CONSTITUTION: If a BSM(Base Station Manager) is restarted, the BSM checks the data base storing the failure events of the BSM(S2). If there is a failure event of a sub system to accord failure information(S3), the BSM makes the failure events of the data base into a packet and transmits the packet to the subsystem(S4). The subsystem receiving the packet compares the failure events and reports each different failure events to the BSM(S6). If there is no failure event of a sub system to accord failure information(S3), the BSM requests a failure event to the subsystem(S5).
Patent KR-20000046248-A (KR)
Title: Alloy powder of copper-cobalt-iron and preparing method thereof
Inventor: JEONG IN BEOM
IPC: B22F9/00
Filed: 1998-12-31
Abstract: PURPOSE: An alloy powder of copper-cobalt-iron and a preparing method thereof are provided to make simple preparing processes, to sinter at low temperature and to obtain uniform particle distribution and fine sintered form. CONSTITUTION: An alloy powder of copper-cobalt-iron is composed of less than 30wt% of cobalt, from 10wt% to 40wt% of iron, from 40wt% to 70wt% of copper and less than 3wt% of impurities. Cobalt chloride(CoCl2), copper nitric acid(Cu(No3)3) and iron chloride(FeCl3) are mixed in solution state. The mixed solution is reacted to oxalic acid solution to deposit into oxalate. The deposited oxalate is dehydrated, cleansed and dried at from 100°C to 120°C. The dried oxalate is reduced at from 500°C to 580°C in a reducing furnace and then milled.
Patent KR-20000046978-A (KR)
Title: Device and method for controlling burning of spindle gear of machine tool
Inventor: LEE JONG GUK
IPC: B23Q15/00
Filed: 1998-12-31
Abstract: PURPOSE: A device and a method for controlling burning of a spindle gear of a machine tool are provided to stop driving of a spindle motor and a servo motor until a proper amount of oil is filled if the amount of oil supplied to a spindle gear box is short and to automatically discharge oil if too much oil is supplied. CONSTITUTION: When an oil supply pump and an oil discharge pump are started by a programmable logic controller(33), oil of a proper amount is supplied to a spindle gear box. If a mid-level sensing switch is turned on and a high level switch is turned off, oil is supplied normally. Thus, a spindle motor(43) and a servo motor(42) are driven normally. If the oil in the gear box is not sufficient due to leakage, a low level sensing switch is turned off and the programmable logic controller decides that oil is dangerously insufficient. Thus, the spindle motor, an oil discharge pump and the servo motor are stopped sequentially. An alarm about the insufficiency of oil is output to inform a user.
Patent KR-19990036121-A (KR)
Title: 압전형 스텝 모터
IPC: H02N2/00
Filed: 1997-06-05
Abstract: 압전형 스텝 모터는 원통형 하우징(1), 고정장치 및 가동부(4)를 구비한다. 상기 고정장치는 한 개의 세로면에 앞뒤로 배열된 적어도 두 개의 회전-시프팅-고정 압전형 장치들(2,3)로 구성되며, 각 압전형 장치들(2,3)은 회전 압전 셀(5), 시프팅 압전 셀(6), 고정 압전 셀(7) 및 인슐레이터(8)에 의하여 분리된 마찰 요소(9)로 구성된다.
Patent KR-19990076961-A (KR)
IPC: A43B13/18
Filed: 1997-04-30
Abstract: The inner surface of the sole facing the insole, and the outer surface facing away from the insole or underside (21) have protuberances (23) and a rim enclosing the surface of the sole. The protuberances form a rectangular mesh and run across the longitudinal direction or axis in the form of discontinuous arms of the sole. At least one lengthwise ridge (27,29) on the underside of the sole, parallel with the outline of the sole, is positioned at least along the outside (25) of the sole and is spaced apart from the outline by an amount less than half the width of the sole near the heel (9). A sickle-shaped reinforcement part between the ball of the foot (11) and heel parts extends outwards from the inside of the sole.
Patent KR-19990082085-A (KR)
Title: 발현된 재조합 단백질로부터의 반응 증폭
IPC: A61P37/02
Filed: 1997-01-29
Abstract: 본 발명은 재조합 종두증 매개체로부터 발현되는 단백질로부터의 반응을 증폭시키기 위한 방법에 관한 것이다.  본 발명은, 예를 들면, 백신제조, 예방접종, 및 유전자 치료와 같이 이러한 발현이 바람직한 임의의 방법에서 표현 단백질의 의도한 바의 효과를 증폭시키는 데에 이용될 수 있다.  본 발명은 또한 합성 펩타이드, 핵산 서열, 바람직하기로는 DNA 서열에 관한 것이며, N-말단에 시그널 펩타이드 및 C-말단에 앵커 서열을 포함하는 단백질을 코드화하는 DNA 분절에 연결된 구조로 된다.  이러한 발현 매개체는 일반적으로 다양한 동물 세포에서 폴리펩타이드를 발현하는 데에 유익하다.
Patent KR-19990087527-A (KR)
IPC: A61Q5/10
Filed: 1997-03-21
Abstract: The present invention relates to a composition for dyeing keratinous fibers, especially human hair, which in a medium appropriate for dyeing comprises:as coupler at least one compound of formula: in which:R1 is especially hydrogen, alkyl, aryl, a heterocycle, a halogen, etc.;R2 is especially hydrogen, halogen, aryloxy, alkoxy, acyloxy, arylthio, alkylthio, heteroarylthio, heteroaryloxy, etc.;Za, Zb and Zc are independently a nitrogen atom or a carbon which carries a radical R3 or R4 whose meanings are identical to those of R1; at least one of Za, Zb and Zc is a nitrogen atom; and R3 and R4 may together form an unsubstituted or substituted aromatic ring; andat least one oxidation base.
Patent KR-20000064785-A (KR)
Title: 액정표시모듈제조방법
IPC: G02F1/13
Filed: 1998-01-12
Abstract: LCD 모듈에서 양질의 접속부를 제조하는 방법에 있어서, IC가 기판의 표면 상에 배치되어 상기 IC의 외부 접속부가 상기 기판상의 소정의 상호접속부와 전기적으로 접촉한다.  전기 접촉부의 품질은 IC를 파워 업하고 셀프테스트 프로그램을 구동하여 테스트된다.  상기 셀프테스트는 디바이스의 외부 접속부와 기판상의 상호접속부, 예를 들면 LCD 유리 상의 로우-컬럼 콘덕터 사이의 모든 접촉을 검사한다.  저항 접촉의 불량으로 인해 드라이버 IC로부터의 신호가 지연될 수도 있으며, 측정된 지연은 접촉 품질을 나타낸다.
Patent KR-20000016119-A (KR)
Title: Stent for vessels
Inventor: IGAKI KEIJI
IPC: A61F2/90
Filed: 1998-03-31
Abstract: PURPOSE: A stent for vessels to be inserted into vessels such as blood vessels, lymph vessels, bile ducts, and ureters, can restrict the occurrence of a stress concentration portion in the vessels when it is inserted into the vessels. CONSTITUTION: The stent (11) comprises a tubular body (12) forming one flow passage from one of the end portions to the other and low rigidity portions (14, 15) formed integrally on both sides of the center of the tubular body (12) and having lower rigidity than that of the center portion (13). Each low rigidity portion (14, 15) has a Young's modulus approximate to that of the living body vessel into which the stent is fitted and consequently, can restrict the occurrence of a stress concentration portion in the vessels when it is inserted into the vessels.
Patent KR-19990067850-A (KR)
IPC: G10L19/12
Filed: 1999-01-12
Abstract: CELP 보코더(vocoder)는 단일 비트 에러에 덜 민감한 방식의 엑시테이션(excitation) 벡터를 효율적으로 인코드한다.  엑시테이션 벡터를 포함하는 펄스들 각각은 4개의 소정의 위치들중 한 위치로 제한된다.  따라서, 3개의 비트들(위치에 대한 2개 비트와 1개의 부호 비트)만이 각 펄스를 인코드하기 위해 필요하며, 더불어 단일 비트 에러는 한 펄스 내의 에러만을 생성한다.
Patent KR-20000051116-A (KR)
Inventor: PAR JONG HWAN
IPC: A61N5/06
Filed: 1999-01-19
Abstract: PURPOSE: A far infrared light radiating Cheon-Geum mat is provided. CONSTITUTION: A Cheon-Geum mat comprises jagard (5); cottonwool (4) on the jagard (5); Cheon-Geum rubber (3) adhered on the compressed cottonwool (4) at regular intervals, which is obtained by mixing charcoal, copper powder, silver powder, yellow soil, rare earth elements, natural rubbers and hell stone; a non-woven fabric (2) on the Cheon-Geum rubber (3) and the cottonwool (4); and jagard (1) on the non-woven fabric (2).
Patent KR-19990072556-A (KR)
Title: 소모전극식교류가스시일드용접방법및장치
IPC: B23K9/06
Filed: 1999-02-10
Abstract: 본 발명은, 단락이 빈번하게 발생하는 아크길이가 짧은 용접에 있어서도 안정된 아크상태가 얻어지며, 모든 용접전류치에 대하여 교류주파수 및 극성비율을 임의로 설정할 수 있도록 하여, 교류아크용접의 특징인 얕은 용입, 높은 와이어용융량 등의 특성을 광범위하게 활용할 수 있는 소모전극식 교류가스시일드용접방법 및 장치를 제공하는 것이다. 
     본 발명에 있어서는, EP극성의 기간(T EP )에 있어서의 출력전압치(V EP )를, 용접전류치가 임계전류치 이하로 되도록 설정함과 동시에, EN극성의 기간(T EN )에 있어서의 출력전압치(V EN )를 출력전압치(V EP )보다 낮은 값으로 설정한다.  이와 같이 하면, EN극성과 EP극성의 와이어용융속도를 대략 동등하게 할 수 있고, 단락이 빈번하게 발생하는 짧은 아크길이이더라도 안정된 소모전극식 교류가스시일드용접을 행할 수 있으며, 용도에 따라, 교류용접의 특징인 높은 와이어용융속도, 얕은 용입 또는 볼록형의 덧살형상 등을 임의로 선택할 수 있다.