baber/WOPTO huggingface dataset:
Patent KR-20000044909-A (KR)
Title: Output buffer circuit
Inventor: YOU SEONG JIN
IPC: H03K19/00
Filed: 1998-12-30
Abstract: PURPOSE: An output buffer circuit is provided to make a negative damping not generated and to have a rapid discharge time. CONSTITUTION: An output buffer circuit comprises an output driving circuit(11), a pulse generating circuit(12) and a parasitic inductance circuit(13). The output driving circuit(11) consists of pull-up and pull-down transistors(P11,N11) which are connected in series between a power terminal(Vcc) and a ground terminal(Vss). The parasitic inductance circuit(12) is connected to an output terminal(K11) of the output driving circuit(11) so as to remove an output noise. An NMOS transistor(N12) whose gate is connected to receive a pulse signal of the circuit(12) is connected between the output terminal(K11) and the ground terminal(Vss), and the pulse generating circuit(12) consists of an NAND gate(14), a NOR gate(16), and inverters(15,17). The pulse generating circuit generates a pulse signal in response to first to third control signals(S1-S3) so that the NMOS transistor(N12) and the pull-down transistor(N11) are simultaneously turned on in order to discharge the output terminal(K11) and then the NMOS transistor(N12) is turned off after a predetermined time.
Patent KR-20000045545-A (KR)
Title: Device and method for playing optical disc having compensating function of eccentricity
Inventor: LEE HEE SU
IPC: G11B7/095
Filed: 1998-12-30
Abstract: PURPOSE: An eccentricity compensator and its method are provided to compensate an eccentricity by storing eccentric data of one cycle for an eccentric component in a memory and by adding the eccentric data to a signal of a tracking servo system. CONSTITUTION: An eccentricity compensator (130) is fed a tracking error signal contained an eccentric component detected from a RF amplifying unit (50). The eccentricity compensator (130) detects data of eccentric component based on an FG (frequency generator) signal from a detecting unit of disc rotational information (110) and outputs to an adder (120). The adder (120) adds the tracking error signal compensated the eccentricity and the detected tracking error signal and outputs to a tracking servo (70). The tracking servo (70) outputs a control signal of tracking servo into a tracking actuator (30) to minimize the tracking error based on the compensated tracking error signal. Thereby, the tracking servo system is stabilized without a separated manual control.
Patent KR-19990066919-A (KR)
Title: 표시장치
IPC: G02F1/1335
Filed: 1998-12-31
Abstract: 본 발명은 표시 장치에 관한 것으로 광의 이용 효율을 높일 수 있도록 하는 것을 목적으로 한다. 
     복수의 화소를 갖는 공간 변조자와, 상기 공간 변조자의 화소에 대응하는 집광 요소를 갖는 주기 구조체를 구비하고, 상기 공간 변조자의 각 화소는 제 1 방향으로 배치된 복수의 색점(32R, 32G, 32B)을 포함하고, 상기 복수의 색점을 둘러싸는 주변부(46A)를 포함하는 각 화소 영역(46A)의 상기 제 1 방향의 길이가 상기 주기 구조체의 상기 집광 요소(16)의 상기 제 1 방향의 길이보다도 큰 구성으로 한다.
Patent KR-20000046951-A (KR)
Title: Method for forming low dielectric thin film using atmospheric sililation process
Inventor: LEE GEUN SU
IPC: H01L21/31
Filed: 1998-12-31
Abstract: PURPOSE: A method for forming a low dielectric thin film using an atmospheric sililation process is provided to leave rigid benzene radicals so as to improve thermal stability. CONSTITUTION: A method for forming a low dielectric thin film using an atmospheric sililation process according to the present invention provides a chemical whose structure is same as follows, Cl Cl I I R1-Si-X-Si-R1 I I Cl Cl, where R1 is either one of hydrogen, alkyl, phenyl, dephenyl in which number of carbons is 4 and which is substituted or not.
Patent KR-19990067327-A (KR)
Title: 통신 네트워크용 서비스 창조 장치
IPC: H04M3/42
Filed: 1996-11-04
Abstract: 본 발명은 통신 네트워크용 서비스 창조 장치에 관한 것으로, 서비스 창조 액티비티가 수행될 수 있는 SCE1, SCE2  및 SCE3 의 3 가지 다른 레벨을 가지는 지능망 타입의 통신망용 서비스 창조 시스템 분리 레벨의 사용은 네트워크내의 여러관심사를 가지고 있는 사용자를 위해 기능적 분리를 유지할 서비스 창조 시스템으로의 액세스를 허용하여 사용할 것으로 선택된 서비스용 네트워크 성분 레벨에서 설치될 특성이 SCE1 내에 만들어질 수 있고, 상기 특성의 지원 및 관리 설명과 함께 통화 처리 로직을 엔캡슐레이트하는 특성의 관점을 주는 시장성있는 서비스 특성은 SCE2 내에서 만들어지고, 서비스 특정 지원 및 관리 정보와 함께 서비스의 요구를 충족시키 시장성있는 서비스의 조합을 허용하는 서비스 패키지는 SCE2 또는 SCE3 중 한 곳에서 만들어질 수 있고, SCE2 에서의 서비스 공급자는 시장성있는 서비스 특성의 주문된 시퀀스를 구비하는 편집 그래프를 창조 및 테스트 하고, 그러면 SCE3 에서 고객이 사용할 수 있게 만들어지고, 사용자를 위한 서비스에 관련된 특성을 목록화 하고 각 특성에 필요한 데이터용 데이터 슬롯을 제공하는 프로파일은 편집 그래프로부터 실행 그래프의 창조에 의해 SCE3 내에서 제공 및 수정될 수 있고, 시장성있는 서비스 특성에 추가하여, 미터특성이 편집 그래프가 있을 수 있는데 이것은 시장성있는 서비스 특성과는 유사하지만 관련된 스크린 정보는 가지고있지 않으며, 이것은 사용자가 흑색 스크린으로 나타나는 것으로부터 실행 그래프를 발생할 수 있게 하지만 실제적으로 상기 미터 특성에 의해 강제적으로 있게되어서 상기 실행 그래프가 테스트된 강제 내부에 있는 것을 보증하는 것을 특징으로 한다.
Patent KR-19990067540-A (KR)
Title: 비정상신호 해석장치 및 비정상신호 해석프로그램을 기록한매체
IPC: B66B5/00
Filed: 1997-09-12
Abstract: 본 발명은 감시대상(10)으로부터 발생하는 비정상신호를 해석하기 위한 비정상신호 해석장치이다. 비정상신호를 웨이브렛 변환하여 웨이브렛 스펙트럼 데이터를 작성하는 웨이브렛 변환 계산수단(2)을 갖고 있다. 감시대상(10)에 있어서의 특정 상태량의 시간변화를 나타낸 상태량 변화함수를 설정하는 상태량 변화함수 설정수단(4, 6)을 갖고 있다. 상태량 변화함수의 역함수에 의해 웨이브렛 스펙트럼 데이터의 시간좌표를 특정 상태량의 좌표로 비선형 변환하는 시간좌표 비선형 변환수단(3)을 갖고 있다.
Patent KR-20000064514-A (KR)
Title: 비스알케닐유도체,액정화합물및액정조성물
IPC: C07C43/192
Filed: 1997-03-06
Abstract: 본 발명은 화학식 1의 액정 화합물, 특정의 액정 화합물을 배합함으로써 수득되는 이의 액정 조성물, 및 이를 이용하는 액정 디스플레이 장치에 관한 것이다. 
     화학식 1 
     
       
     
     상기식에서, 
     A 1 , A 2 , A 3 및 A 4 는 서로 독립적으로 트랜스-1,4-사이클로헥실렌 그룹 등이고, 
     Z 1 , Z 2 및 Z 3 은 서로 독립적으로 -(CH 2 ) 2 - 등이며, 
     Q 1 및 Q 2 는 서로 독립적으로 H, F, Cl 또는 Br이고, 
     Q 3 및 Q 4 는 서로 독립적으로 F, Cl 또는 Br이며, 
     l, m 및 n은 서로 독립적으로 0 내지 5의 정수이고, 
     p 및 q는 서로 독립적으로 0 또는 1의 정수이다.
Patent KR-19990077107-A (KR)
IPC: A61K31/415
Filed: 1997-01-09
Abstract: An amino acid composition comprising the following amino acids at the following molar ratio: proline (12.6 to 23.4), alanine (8.4 to 15.6), glycine (13.3 to 24.9), valine (8.2 to 15.4), threonine (5.0 to 9.4), leucine (4.3 to 8.1), histidine (1.8 to 11.9), serine (1.7 to 3.3), lysine (6.0 to 11.2), isoleucine (3.1 to 5.9), glutamic acid (2.2 to 10.4), arginine (2.4 to 4.6), phenylalanine (2.6 to 5.0), tyrosine (4.2 to 7.8) and trypsin (1.5 to 2.9). The composition supplements blood amino acids reduced during hard exercise and shows effects to improve motor function, to reduce fatigue after exercise and to help recovery from the fatigue.
Patent KR-19990082019-A (KR)
Title: 차량용 제어 디바이스
IPC: H05K1/14
Filed: 1997-01-20
Abstract: 본 발명은 상부면(32)상에 위치한 제 1 인쇄 회로 기판(4)과 냉각 플레이트(3) 하부에 위치한 제 2 인쇄 회로 기판(5)을 가지는 제어 디바이스에 관한 것이다.  냉각 플레이트(3) 하부에 조립된 플러그(6)의 핀(61)은 제 2 인쇄 회로 기판(5)과 전기적으로 결합되고, 다음으로 결합부(7)를 통해 제 1 인쇄 회로 기판(4)과 전기적으로 결합된다.
Patent KR-19990087320-A (KR)
Title: 자동차용 다중단 유체 기계식 변속기
IPC: F16H47/04
Filed: 1996-08-05
Abstract: 유체 기계식 변속기는 차량 엔진으로부터 분리 동력 입력들을 받고, 하나의 분리 입력은 유체 정력학적 동력 유닛을 구동시키고 다른 분리 입력은 기계적 동력 입력측을 구동시킨다.  무한 가변 유체 정력학적 동력 출력은 단 사이의 동시 변속과 함께 다중 변속단을 통해 정지시로부터 최대 속도로 차량을 유연하게 추진하기 위한 유체 기계식 출력 동력의 다중비를 얻기 위해 그 분리 입력 동력의 다중비로 기계적 동력 유닛 내에서 결합된다.
Patent KR-20000005337-A (KR)
Title: Controlled-release pharmaceutical tablet containing a carrier based on cross-linked amylose and hydromypropylmethylcellul-ose
Inventor: CHOUINARD FRANCOIS
IPC: A61K47/36
Filed: 1997-04-04
Abstract: PURPOSE: A controlled-release pharmaceutical tablet containing a carrier based on cross-linked amylose and hydromypropylmethylcellulose(HPMC) has excellent resistance to the enzymatic medium and is thus less dependent on the enzyme concentration in the medium. CONSTITUTION: A pharmaceutical tablet is provided to contain up to 60wt% of active principle mixed and compressed with at least 40wt% of an amylose carrier cross-linked by means of a cross-linker in an amount of 0.1-10g of cross-linker such as epichlorohydrin per 100g of amylose. The carrier contains 30-90% of cross-linked amylose and 10-30% of HPMC with a viscosity of at least 4000cps, based on the total weight of the tablet.
Patent KR-20000010580-A (KR)
Title: Urea derivatives as inhibitors of impdh enzyme
Inventor: ARMISTEAD DAVID M
IPC: C07D263/32
Filed: 1997-04-21
Abstract: PURPOSE: Methods for inhibiting the activity of IMPDH using the compounds of urea derivatives and related compounds are provided which relates to pharmaceutical compositions, are particularly well suited for inhibiting IMPDH enzyme activity and consequentially, and may be advantageously used as therapeutic agents for IMPDH mediated processes. CONSTITUTION: A compound of formula I is described: A is selected from:(C1 -C6)-straight or branched alkyl, or (C2 -C6)-straight or branched alkenyl or alkynyl; and A optionally comprises up to 2 substituents, wherein: the first of said substituents, if present, is selected from R1 or R3, and the second of the substituents, if present, is R1; B is a saturated, unsaturated or partially saturated monocyclic or bicyclic ring system optionally comprising up to 4 heteroatoms selected from N, O, or S.
Patent KR-20000011026-A (KR)
Title: Exhaust gas catalyst containing multi-layer upstream zone
Inventor: SENG SEAN
IPC: B01D53/94
Filed: 1997-03-12
Abstract: PURPOSE: A useful catalyst device is provided to reduce the contained pollution by processing exhaust gas containing the exhaust gas of a car engine. CONSTITUTION: An upstream catalyst zone contains: a first upstream layer containing a first upstream support body, a first upstream palladium component, a first stabilizing agent, a first upstream rare-earth metal component, and an upstream zirconium compound; a second upstream layer containing a platinum group metal component and a zirconium component. A downstream catalyst zone contains: a first downstream layer containing a first downstream support body, a first downstream palladium component, a first platinum group metal component, and a first downstream zirconium compound; a second downstream layer containing a rhodium downstream component, and a second downstream zirconium compound.
Patent KR-20000016710-A (KR)
Title: Unidirectional electromagnetic steel sheet having excellent film characteristics and magnetic characteristics, its production method and decarburization annealing setup therefor
Inventor: KOSUGE KENJI
IPC: C21D8/12
Filed: 1998-01-09
Abstract: PURPOSE: A unidirectional electromagnetic steel sheet containing up to 2.0 to 7.0 wt.% of Si, its production method and decarburization annealing setup therefor are provided which have excellent film characteristics not to occur the peel of the surface film comprising the primary and secondary film and magnetic characteristics. CONSTITUTION: A unidirectional electromagnetic steel sheet having excellent film characteristics and iron loss characteristics, containing up to 0.005 wt.% of C, 2.0 to 7.0 wt.% of Si and the balance of Fe and unavoidable impurities, and having an oxide film consisting principally of forsterite and an insulating film formed on the oxide film, wherein the film quantity of the oxide film per surface is 1 to 4 g/m2, the peak strength of Si obtained by glow discharge emission analysis is at least 1/2 of that of AL, the depth from the surface of the oxide film to the Si peak position is within 1/10 of the depth of the AL peak position from the surface of the oxide film, and the non-occurrence ratio y (%) of the peel of the film by 20 mm-radius bending and the iron loss characteristics W (W/kg) satisfy the following formulas:y (%).ge. -122.45t + 112.55 (where t:sheet thickness mm), W (W/kg).le. 2.37t + 0.280 (where t:sheet thickness mm).
Patent KR-20000050762-A (KR)
Title: Apparatus and method for monitoring optical signal
Inventor: KANG YONG HUN
IPC: H04B10/077
Filed: 1999-01-14
Abstract: PURPOSE: An apparatus for monitoring an optical signal is provided to accurately measure the strength of a light, a wave, a rate of an optical signal to noise by using an optical signal monitoring device. CONSTITUTION: An optical signal monitoring device comprises a multiplication section(310), a channel watching section(320), and a microprocessor section(330). The multiplication section(310) sorts the optical signal according to the waves of the channels, and outputs the sorted optical signal. The channel watching section(320) receives the optical signal which is outputted according to the channels, and converts the optical signals of the channels into electrical signals, and outputs the electrical signals to a signal processing section(330).
Patent KR-20000050793-A (KR)
Inventor: KIM SOON SAM
IPC: A63H5/00
Filed: 1999-01-14
Abstract: PURPOSE: A baseball bat having a phonetic judging means that can sense the bat, judge the swing result and selectively replay a voice such as homerun, hit and swing according to the judgement is provided. CONSTITUTION: A baseball bat(1) having a phonetic judging means(3) for the result of batting according to the present invention comprises: a) a centrifugal force determining sensor(9) that can determine swing; b) a hit determining sensor(10) that can determine hit; c) a means(3) that can judge the overall swing result from the outputs of the sensors(9,10) to the centrifugal force and hit, select a suitable voice among voices recorded in a phonetic semi-conductor and output the batting result as a voice through a voice replaying part(12).
Patent KR-19990072775-A (KR)
Title: 반도체장치
IPC: G11C29/00
Filed: 1999-02-19
Abstract: 본 발명의 반도체장치는 제 1 방향으로 서로 거의 평행하게 연장하는 복수의 퓨즈배선경로를 구비하며, 상기 퓨즈배선경로 각각은 퓨즈 소자를 갖는다.   정상 컬럼라인은 상기 제 1 방향에 거의 수직한 제 2 방향으로 연장하며, 데이터를 저장하는 정상 메모리셀에 대응한다.   상기 반도체 메모리장치는 제 2 방향으로 연장하는 용장 컬럼라인을 더 구비하며, 상기 용장 컬럼라인은 데이터를 저장하는 용장 메모리셀에 대응한다.   논리회로는 복수의 퓨즈배선경로상의 각 신호를 수신하여, 이들 신호에 따라 선택신호를 출력한다.   상기 반도체장치는 또한 논리회로와 정상 및 용장 컬럼라인 사이에 결합되는 스위칭회로를 또한 구비하며, 상기 스위칭회로는 어드레스신호와 선택신호를 수신하여, 상기 선택신호에 응답하여 상기 어드레스신호를 정상 컬럼라인 또는 용장 컬럼라인으로 선택적으로 전송한다.
Patent KR-19990077448-A (KR)
Title: 팽창밸브
IPC: F16K31/68
Filed: 1999-02-22
Abstract: 팽창 밸브(101)는 대략 각주 형태의 알루미늄 합금으로 된 밸브 본체(301)를 구비하며, 밸브 본체(301)에는 증발기로 향하는 액상 냉매가 통과하는 제1 통로(32)와, 증발기에서 압축기로 향하는 기상 냉매가 통과하는 제2 통로(34)를 구비한다. 밸브 본체(301)의 상부에는 제1 통로(32)의 도중에 설치되는 밸브를 구동하는 파워 요소부(36)가 부착된다. 밸브 본체(301)의 측면(301a)에는 돌출부(301c)가 형성되고, 돌출부(301c)를 이용하여 부착용 볼트가 삽입되는 관통 구멍(50)이 형성된다.
Patent KR-20000011195-A (KR)
Inventor: KITADE OSAMU
IPC: G11C29/50
Filed: 1999-03-10
Abstract: PURPOSE: A semiconductor memory device is provided to feed a high voltage stress for a Wafer Burn-In(WBI) between the lines of a main word line, to reduce a chip size, and to possibly wafer burn-in in a resin-sealed package state. CONSTITUTION: A formation of a class word line of a memory(100) comprises: a cell array(101) formed by memory cells arranged as a matrix shape and a subsidiary word line(102) being a selected line of the first line of the cell array for being separated into sixteen toward a line direction; the subsidiary word line corresponding to each cell block from the separated cell block M1 to M16 for being selected by one main word line(103) commonly by four; the main word line being not separated and being common for 16 cell blocks for being formed by number m; the subsidiary word line being formed by a poly silicon layer formed to a wiring pitch 0.2 micrometer in the first layer on the silicon substrate; and the main word line being formed by an aluminum layer arranged as a pitch 1 micrometer in the higher layer than the subsidiary word line by passing through the insulating layer.
Patent KR-19990078380-A (KR)
Title: 반도체 메모리 테스트 방법 및 장치
IPC: G11C29/02
Filed: 1999-03-30
Abstract: 본 발명은 행 및 열로 배열된 다수의 메모리 셀과 다수의 감지 증폭기를 구비한 반도체 메모리를 테스트하기 위한 방법 및 장치를 설명하였으며, 상기 각각의 감지 증폭기는 공통 열 또는 행의 메모리 셀 신호를 증폭한다.  방법의 예시적인 실시예에 있어서, 전압 레벨 또는 테스트 패턴은 메모리 셀 중 적어도 하나의 목표 셀에 기입된다.  상기 목표 셀에 결합된 워드 라인이 활성화되고 순차적으로 비활성화되면, 이에 따라 셀 내에 저장된 전압 레벨이 수정되며, 관련 감지 증폭기는 예를 들어 감지 증폭기를 디스에이블시키므써 워드 라인이 활성화됨에 따른 셀의 리프레시를 방지한다.  테스트 비트 라인 전압은 비트 라인을 충전시키기 위하여 셀에 결합된 비트 라인에 인가된다.  데이터는 인에이블된 관련 감지 증폭기를 구비한 목표 셀로부터 독출되고 이어, 상기 데이터는 셀 내에 기입된 원래 전압 레벨과 비교된다.  상기의 처리가 상이한 테스트 비트 라인 전압에 대해 반복된다.  상기 방법은, 복잡하고 값비싼 피코프로브를 사용하지 않고 메모리의 정상 동작 동안에 감지 증폭기에서 신호를 결정하기 위하여 사용될 수 있다.
Patent KR-20000066453-A (KR)
Inventor: KIM JAE MYEONG
IPC: H01J1/30
Filed: 1999-04-16
Abstract: PURPOSE: A field emission display device is provided, which effectively removes hydrogen left inside the display device to improve the operation characteristics and life of the display device. CONSTITUTION: A field emission display device includes first and second transparent substrates(10,20), a cathode electrode(12) and anode electrode(22) respectively formed on the substrates in a line pattern, an emitter(14) formed on the cathode electrode for emitting electrons based on formation of electric field, a fluorescent layer(24) formed on the anode electrode, and a hydrogen reduction means(30), provided on one of the two substrates, to be chemically reacted with hydrogen left after exhaustion to absorb the hydrogen. This hydrogen reduction means is a getter formed of a hydrogen storage alloy. The getter is heated during exhaust procedure to emit hydrogen, and then captures the hydrogen left inside the display at the state of being cooled to room temperature after completion of exhaust and sealing.
Patent KR-20000067130-A (KR)
Inventor: OH DOO HWAN
IPC: A61N5/06
Filed: 1999-04-23
Abstract: PURPOSE: An agent for increasing natural passion using jade and product using the agent are provided, which increases efficiency of medical cure by using the portable agent easily and conveniently. CONSTITUTION: The agent for increasing natural passion is prepared by grinding jade; and adding a viscosity increasing agent to the jade powder to form gel-state jade. The product using the agent comprises an inner vinyl(10) sealing the gel-state jade; an external vinyl(20) folding the inner vinyl(10) by heat pressing; and a heating apparatus(30) which is installed in the external vinyl(20) and heats the gel-state jade.
Patent KR-20000067162-A (KR)
Inventor: NA JONG JU
IPC: C23C22/40
Filed: 1999-04-24
Abstract: PURPOSE: A method for improving abrasion resistance and lubricating property is provide to enhance the abrasion resistance and a lubricating property of a phosphate manganese film, so the life span of the compartment is extended and a quality defect is reduced. CONSTITUTION: A phosphate manganese compartment is degreased and washed. The surface of the film is smoothened. Then, the film is secondly washed and dried to be a phosphate manganese film having 0.01 to 20micrometer of average roughness in the central line. The surface of the phosphate manganese film is burnished by a single mixture or a compound mixture mixed with more than two among 0.001 to 10micrometer of graphite, MoS2 and PTFE(polytetrafluoroethylene). The single mixture or the compound mixture is filled between the crystals of the phosphorous manganese film and the portions not crystallized. Therefore, the film has excellent abrasion resistance and lubricating property.
Patent KR-20000011253-A (KR)
Inventor: KIM JU WAN
IPC: H01L21/306
Filed: 1999-04-30
Abstract: PURPOSE: An insulation film forming method for a semiconductor device is provided to form an insulation film which does not have a void and is able to prevent a bridge between conductive patterns caused by a void. CONSTITUTION: The insulation film forming method for a semiconductor device comprises; step 1, to form a pattern having plural recess area on a semiconductor substrate(100); step 2, to evaporate the 1st insulation layer on a semiconductor substrate; step 3, to etch the 1st insulation layer to leave part of the 1st insulation layer under the recess area; and step4, to evaporate the 2nd insulation layer to fill the recess area completely on all over the semiconductor substrate and by using multi-step evaporation process, a bridge of conductive pattern can be avoided.
Patent KR-20000072986-A (KR)
Inventor: JI BONG GU
IPC: H01L21/027
Filed: 1999-05-04
Abstract: PURPOSE: A method for forming an exposure mask is provided to improve uniformity by compensating for an error of a critical dimension in a mask writing. CONSTITUTION: A tendency of an error of a critical dimension is measured in a lithography process. An exposure process is performed regarding an exposure mask to compensate for the error of the critical dimension by using a changed size of beam. In measuring the tendency of the error of the critical dimension, an arbitrary cell is vertically and horizontally divided and drawn by n. A line width of a pattern formed at an intersection is measured. A largest value and respective values at each position are measured. The same method is used regarding other four wafers to measure measurement values at each position. Deviation lines are drawn according to a deviation of each position, and a job-deck is formed accordingly.
Patent KR-20000073214-A (KR)
Inventor: KWON DONG HWAN
IPC: G11B20/00
Filed: 1999-05-07
Abstract: PURPOSE: A song accompaniment with a function of eliminating external sound is to be connected with an external audio apparatus to receive music not stored in the player, and also eliminate an external sound signal from an external audio signal. CONSTITUTION: A song accompaniment with a function of eliminating external sound comprises an audio signal input portion(10) for receiving a signal reproduced from an external audio apparatus, an external sound eliminating portion(30) with a voice cancel IC for eliminating an external sound signal out of a reproducing signal input through the audio signal input portion and outputting only a music signal, a switching portion(20) switched by a user to switch the reproducing signal input through the audio signal input portion to the external sound eliminating portion, an audio composing portion(40) for composing music signal output from the external sound eliminating portion with a microphone signal and then outputting the composed signal, and an amplifying portion(50) for receiving and amplifying the signal output from the audio composing portion and then outputting an amplified signal to a speaker.
Patent KR-19990068451-A (KR)
Title: 재봉용고강력재귀축광혼합사및그제조방법
Filed: 1999-05-21
Abstract: 본  발명은  축광  또는  재귀반사  기능을  갖는  기능사를  저융점  원사,  고강력원사  또는  일반사  등과  함께  가공하여  재봉사  또는  자수사  등의  용도로  사용이  가능한  재봉용  고강력  재귀축광  혼합사  및  그  제조방법에  관한  것으로,  축광  또는  재귀반사  기능을  갖는  기능사를  저융점  원사,  고강력원사  또는  일반사  등과  함께  합연한  합연사나  기능사와  저융점  원사를  포함하는  코어를  고강력  원사나  일반사  등으로  커버링한  커버링사를  열고정시켜서  이루어진다. 
     따라서,  재봉용사,  봉재용사,  자수사,  직물경위용사,  편물용사  등에  유용한  고강력  재귀축광원사를  제공하는  효과가  있으며,  또한  그로부터  수득되는  혼합사의  구체용도로서  벨트,  조깅용  머리띠,  양말,  패션용품,  와펜,  허리띠,  각종  끈,  팬시용품  또는  안전용품  등이  있다.
Patent KR-20010001567-A (KR)
Inventor: KIM U HYEON
IPC: G02F1/13363
Filed: 1999-06-05
Abstract: PURPOSE: A reflective LCD(liquid crystal display) is provided to have a high contrast ratio and to improve color characteristics as well as to increase productivity. CONSTITUTION: A reflective LCD includes first/second substrates(30,38), a TN(Twisted Nematic) liquid crystal(34), a phase difference panel(40), a linear polarizer(42) and a reflecting electrode(32). The first/second substrates(30,38) are arranged at a specific interval by facing each other. The TN liquid crystal(34) is mounted between the first and second substrates to change the phase of transmitted light depending on voltage feed. The phase difference panel(40) converts the linear polarized light into round polarized light and the reflecting electrode(32) reflects the light. The TN liquid crystal(34) has a twist angle of about 65-75 degrees preferably.
Patent KR-20000006027-A (KR)
Title: Absorptive refrigerator
Inventor: ISHIGURO GAZKE
IPC: F25B15/00
Filed: 1999-06-09
Abstract: PURPOSE: An absorb-typed refrigerator is provided to dilute-operate with a low cost without newly setting the exclusive pump. CONSTITUTION: The absorbing typed refrigerator comprises:a high temperature-regenerator for heating a lithium bromide aqueous solution, an absorbing solution in a low concentration, with the burning heat of a burner; a high temperature-divider for dividing the heated low concentration solution into vapor and a middle concentration solution; a low temperature-regenerator for reheating the middle concentration solution sent through a high heat exchanger from the high temperature-divider with the vapor sent from the high temperature-divider.