baber/WOPTO huggingface dataset:
Patent KR-19990007734-A (KR)
Title: 디지탈카메라를 이용한 졸업앨범 제작
Filed: 1998-10-28
Abstract: '디지탈 카메라를 이용한 졸업앨범 제작'이란 기존의 앨범제작 방식 즉, 아날로그 카메라를 이용하여 촬영하고 필름을 현상, 인화하여 그 인화된 사진을 지면에 직접 붙여서 편집하거나 인화된 사진을 스캔하여 컴퓨터에서 편집하여 인쇄하는 방법이었다.    그러나 본인의 특허출원방식은 촬영과 필름 현상, 인화 과정을 디지탈 카메라로 대체하므로서 시간적, 경제적으로 상당한 이득을 얻을 수 있으며 컴퓨터상의 다양한 편집으로 앨범의 획일적 편집을 탈피할수 있는 새로운 앨범 제작 방식이다.
Patent KR-20000031775-A (KR)
Title: Printed circuit board
Inventor: KIM HEUNG GYU
IPC: H05K1/00
Filed: 1998-11-10
Abstract: PURPOSE: A multi-layered printed circuit board is provided to prevent delimitation between layers by forming a metal pattern on a process region between a circuit forming region and a dead region, which reduces the number of inferior goods owing to delimitation on a terminal of the printed circuit board. CONSTITUTION: A multi-layered printed circuit board includes a circuit forming region(53), a dead region(54), and a process region(55) formed between the circuit forming region and the dead region. The dead region is removed after circuit formation. The process region includes a certain metal pattern and is processed while the dead region is removed.
Patent KR-20000032300-A (KR)
Title: Thin film actuated mirror array
Inventor: LEE JONG KWON
IPC: G02F1/015
Filed: 1998-11-13
Abstract: PURPOSE: A thin film actuated mirror array is provided to prevent gate signal delay by reducing the resistance of gate lines. CONSTITUTION: A thin film actuated mirror array comprises an active matrix(100), support elements(175), an actuator(210) and a mirror(260). The support elements(175) comprise support lines(174), a support layer(170) and first and second anchors(171; 172a,172b). The support lines(174) and the support layer(170) are horizontally formed on an etching resistance layer(155) via first air gap(165). The support lines(174) support common lines(240). The actuator(210) comprises a lower electrode(180), first and second deformation layers(190,191) and first and second upper electrodes(200,201), The lower electrode(180) is U shape and separated from the lines(174). The mirror(260) is supported by a hard mask(330) and a post(250).
Patent KR-20000032538-A (KR)
Title: Antibacterial bioceramic film for packing
Inventor: KOO BON YOON
IPC: C08J5/22
Filed: 1998-11-16
Abstract: PURPOSE: A bio ceramic film comprising ceramic powder, paraffin and silicon oil is provided which is capable of ripening kimchi well or preserving vegetable or fruit for a long period of time freshly. CONSTITUTION: An antibacterial bio ceramic film for ripening kimchi well or preserving vegetable or fruit for a long period of time freshly is prepared by mixing 5 to 15 parts by weight of FeO, MnO, AlO, TiO, ZrO, MgO, ZnO, SiO, CaO, and Ag respectively with 100 parts by weight of polyethylene vinyl and sintering at 800 to 1,250°C to give ceramic powder, and mixing from 0.01 to 10 parts by weight of the ceramic powder with 0.001 to 10 parts by weight of a mixture of from 25 to 35 parts by weight of paraffin and 35 to 45 parts by weight of silicon oil at 100°C. The film has two times longer storage period of time than that of conventional ones in case of wrapping and storing kimchi, vegetable and fruit.
Patent KR-20000033389-A (KR)
Title: Liquid crystal display
Inventor: LEE JEONG SEOK
IPC: G02F1/1345
Filed: 1998-11-23
Abstract: PURPOSE: A liquid crystal display is provided to solve the problem that the base colors are varied in accordance with position and form differently the width of a conductive seal part along the lengthwise. CONSTITUTION: A liquid crystal display comprises an upper plate(11), a lower plate(12), a conductive seal part(33), and a conductive base(37). transparent upper and lower plate electrodes(14,15) are respectively formed on the inner surfaces of the upper plate(11) and the lower plate(12). Cells for filling liquid crystal are formed between the upper and lower plates(11,12) by the conductive seal part(33), a portion of which the upper plate electrode is electrically connected to. The conductive base(37) is connected to the portion.
Patent KR-20000034434-A (KR)
Title: 디지털 지상방송 및 케이블방송 수신기의 복조회로
IPC: H04N7/18
Filed: 1998-11-30
Abstract: 디지털 지상방송 및 케이블방송 수신기에 있어서 하드웨어 구현이 간소화된 복조회로가 개시된다.  이 복조회로에 있어서, 아날로그/디지탈 변환부는 채널을 통해 수신되는 IF 신호를 디지털 신호로 변환하고, 가변율 복조기는 아날로그/디지탈 변환부에서 출력되는 IF 신호를 복조하여 베이스밴드 I 및 Q 신호로 변환한다.  제 1 및 제 2 SQRC 필터/FFE는 가변율 복조기에서 출력되는 베이스밴드 I 및 Q 신호에 대하여 소정의 필터계수를 이용하여 잡음 및 선형간섭을 제거하고, DFE는 제 1 및 제 2 SQRC 필터/FFE에서 출력되는 신호를 입력으로 하여 포스트 커서를 제거한 신호를 출력한다.  제 1 및 제 2 감산기는 제 1 및 제 2 SQRC 필터/FFE의 출력과 상기 DFE의 출력과의 차를 계산하고, 제 1 및 제 2 슬라이서는 제 1 및 제 2 감산기에서 출력되는 신호를 판정하고,  FEC 디코더는 제 1 및 제 2 슬라이서에서 출력되는 신호에 대하여 포워드 오류정정을 수행한다.  필터계수 제어부는 초기동작 모드와 정상동작 모드에 따라서 제 1 및 제 2 SQRC 필터/FFE와 DFE의 필터계수를 제어한다.  이러한 구성에 따르면, SQRC 필터링기능과 FFE 기능을 단일 필터로 구현하고 초기동작 모드와 정상동작 모드에 따라서 필터계수 갱신을 제어함으로써 수신신호에 포함된 잡음과 간섭을 동시에 제거할 수 있으므로 하드웨어 구현이 간소화된다.
Patent KR-20000037665-A (KR)
Title: Apparatus for controlling sound automatically and method thereof
Inventor: PARK JOO DEOK
IPC: H04N5/60
Filed: 1998-12-01
Abstract: PURPOSE: An apparatus for controlling sound automatically and a method thereof are provided to amplify the sound automatically when the sound level is below the reference level. CONSTITUTION: An apparatus for controlling sound automatically includes an intermediate frequency detector(90), a signal intensity detector(100), a memory(80), a microcomputer(20), a sound processor(40), and a sound adjustor(110). The frequency detector(90) separates video and audio signals. The signal intensity detector(100) detects the signal intensity of the signal from the intermediate frequency detector. The microcomputer(20) compares the intensity of the sound signal with a reference level stored in the memory to generate a control signal for sound adjustment. The sound processor(40) converts the low frequency and high frequency portion of the sound signal according to the control of the micom. The sound adjustor(110) controls the sound processor.
Patent KR-20000034748-A (KR)
Title: Method for preventing from mis-tuning for multi-system tv
Inventor: KIM KI YONG
IPC: H04N5/50
Filed: 1998-11-30
Abstract: PURPOSE: A method for preventing from mis-tuning for multi-system TV is provided so that user's convenience become increased by reducing the time being required for tuning of system TV. CONSTITUTION: A method for preventing from mis-tuning for multi-system TV includes a step for discriminating whether the ID of signal is operated when starting the tuning operation(203S). A step is to detecting horizontal and vertical synchronous signals when operating the ID of the input signal(204S). A step is to firstly identifying whether the synchronous signal is locked(205S). At the result of the above step, if the horizontal and vertical signals are synchronized, an invert operation is operated, i.e., the corresponding signal stores and otherwise positive and negative modulation are exchanged(206S). After the invert operation, a step is to secondly identify whether the synchronous signals are locked after the operation of invert(207S). If the synchronous signals are not locked even though after the operation of invert, the input corresponding signal is skipped(209S).
Patent KR-19990063417-A (KR)
Title: 광학 픽업 및 광 디스크 장치
IPC: G11B7/131
Filed: 1998-12-24
Abstract: 소형이고 또한 저 코스트로 구성되고, 정확한 서보가 가능한 광학 픽업 및 이것을 사용한 광 디스크 장치로서, 
     광학 픽업의 광 분리부는 그 광원 측의 면에 제1의 회절격자(回折格子)와, 복수의 서로 상이한 법선(法線) 벡터를 가지는 면으로 이루어지는 광로 분기부를 구비하는 동시에, 그 광 디스크 측의 면에, 연속된 영역으로 이루어지는 제2의 회절격자를 구비하고, 상기 제1의 회절격자가 광원으로부터의 광을 메인 빔 및 사이드 빔으로 분할하는 동시에, 상기 제2의 회절격자가 광원으로부터의 광을 투과시키는 동시에, 광 디스크로부터의 귀환 광을 상기 광로 분기부를 향하여 회절시키도록 구성되어 있고,  상기 광로 분기부가 광 디스크로부터의 귀환 광을 분할하여 상기 광 검출기의 수광부(受光部)에 유도하도록 되어 있다.
Patent KR-20000044169-A (KR)
Title: Synchronous signal output device
Inventor: CHOI JIN HO
IPC: H03K3/02
Filed: 1998-12-30
Abstract: PURPOSE: A synchronous signal output device is provided to transform an asynchronous clock signal into a synchronous signal by using one latch and one multiplexor. CONSTITUTION: A synchronous signal output device comprises a latch(10), a multiplexor(20) and a logic multiplication circuit(30). The latch(10) outputs a latch signal(11) in a high level period of a system reset signal(RST) and a base clock signal(base_clk) in response to a first reset signal(rst1). The multiplexor(20) multiplexes the latch signal(11) and an asynchronous signal(async_sign.) in response to the base clock signal(base_clk) to output a multiplex signal(21). The logic multiplication circuit(30) logically multiplies the multiplex signal(21) and the system reset signal(RST) to output a synchronous signal(sync_sig.,31) in synchronization with the base clock signal(base_clk).
Patent KR-20000046770-A (KR)
Title: Method for purifying platinum and palladium with high purity
Inventor: KIM SOO DAN
IPC: C22B11/00
Filed: 1998-12-31
Abstract: PURPOSE: A method for purifying and separating platinum or palladium with high purity by means of a short process from platinum group metals which are primarily recovered from waste automobile catalysts, waste chemical catalysts and metal scrap by a chemical or physical method is provided. CONSTITUTION: A method for purifying platinum and palladium elements with high purity from a waste automobile catalyst containing mixture of Pt/Pd/Rh according to the present invention comprises the steps: a) precipitating and separating palladium metal using oxime based complex-forming agent as a complex-forming agent; and b) sequentially precipitating and separating platinum metal using amine, phosphine and ammonium chloride complex-forming agents.
Patent KR-19990082082-A (KR)
Title: 원심 분리기에 제어액을 공급하기 위한 방법 및 장치
IPC: B04B1/10
Filed: 1997-01-24
Abstract: 본 발명은 원심 분리기의 회전자에 제어액을 공급하기 위한 방법 및 장치에 관한 것으로, 상기 장치는 이동 가능한 벽 요소(26)가 그 내부에 배치되고, 그 내부의 저장실(29)을 축방향으로 한정하는 실린더(25)를 포함한다.  소정 체적의 제어액은 저장실(29) 내에 저장되어 있다.  제어액은 벽 요소(26)가 축방향으로 이동되는 동안에 저장실(29)의 외부로부터 회전자 내부로 가압된다.  더욱이, 본 발명은 이러한 장치(21)가 구비된 원심 분리기를 포함한다.  저장실(29) 내의 제어액의 일부는 벽 요소(26)가 제1 거리만큼 이동할 때 높은 유동으로 상기 장치 내의 제1 출구 통로(33)를 통하여 외부로 가압된다.  그 다음, 제1 출구 통로(33)는 벽 요소가 상기 거리만큼 이동한 때 폐쇄된다.  저장실(29) 내의 제어액의 잔류 제어 체적의 일부는 벽 요소(26)가 제2 거리만큼 계속 이동하는 동안에 제1 유동보다 사실상 낮은 유동으로 공급 장치(21) 내의 제2 출구 통로(36)를 통하여 저장실의 외부로 가압된다.
Patent KR-19990087362-A (KR)
IPC: G03G11/00
Filed: 1997-03-04
Abstract: A method and apparatus for electronic printing onto a transparent, translucent or opaque substrate. The substrate is of a type which will support an electrostatic image on a surface thereof and which does not have a conductive ground plane affixed to or deposited on its rear surface. The method includes the steps of applying a selected charge pattern to the surface of the substrate to form an electrostatic latent image thereon, applying an electrostatic toner to the surface via a donor member to provide a toner image thereon and fixing the toner. The apparatus includes a charging arrangement to deposit a selected charge pattern onto a surface of the substrate, a donor member arrangement to transfer toner from a toner source to the surface of the substrate and a fixer arrangement to fix the toner to the surface of the substrate.
Patent KR-20000064960-A (KR)
Title: 천공원통이있는저류사이클론
IPC: B04C5/10
Filed: 1997-04-21
Abstract: 사이클론(310)과 중유의 유동 접촉 분해법이 개시된다.  가스와 연행된 고체를 원통관 사이크론 몸체내 증기 출구관(320) 주위에 접선으로 첨가한다.  고체와 약간의 가스를 사이클론의 원통 측벽(314)에 방사상으로 그리고 세로로 분포된 복수의 개구부(316)에 의해 제거한다.  분포 제거는 사이클론 출구의 단부로부터 종래의 고체 저류를 대체하거나 검소시키며 고체 재연행을 감소시킨다.  사이클론 측벽(314) 근처의 와류 형성과 입자 튀김 현상을 감소시킴으로써 크기 5 마이크론 이하의 입자 제거를 증가시킨다.  이 장치는 FCC 재생기 제 3 단계 분리기로서 사용될 수 있다.
Patent KR-20000022373-A (KR)
Title: Fine pitch bonding tool for constrained bonding
Inventor: HADAR ILAN
IPC: H01L21/60
Filed: 1998-05-21
Abstract: PURPOSE: A fine pitch capillary bonding tool is provided to make ball bonds having a consistent bonded ball size even though the air balls may vary in diameter. CONSTITUTION: A fine pitch capillary bonding tool for constrained bonding comprises a novel ball constraining recess (24) in the working tip (16). The ball being bonded extrudes vertically into the constraining recess without lateral extrusion which would create mashed balls of varying diameter. When an air ball is bonded it is forced into the constraining recess which has a shoulder portion (26) for exerting a downward bonding force.
Patent KR-20000051957-A (KR)
Inventor: PARK CHANG HO
IPC: H01J9/20
Filed: 1999-01-28
Abstract: PURPOSE: An exposure apparatus used for forming a black matrix inside a panel of a cathode ray tube is provided to eliminate an aberration between refraction of light and deflection of electron. CONSTITUTION: An exposure apparatus is employed for exposing an inside of a panel(501) to form a black matrix and a fluorescent layer. The apparatus includes a case(510) forming a hermetically sealed space(511), an electron beam generator(520) disposed in a lower part of the space(511) to expose the fluorescent layer coated on the inside of the panel(501), and an electron beam deflecting tool(540) arranged above the generator(520) to deflect the electron beam emitted from the generator(520). While the panel(501) is equipped above the case(510), a shadow mask(502) is connected to the inside of the panel(501) through both a frame(503) and a spring(504) to exactly land the electron beam on a predetermined position of the panel(501). Since the apparatus performs an exposure process employing the electron beam, an aberration between refraction of light and deflection of electron does not occur.
Patent KR-20000054975-A (KR)
Inventor: KIM SUNG HAN
IPC: C09K19/00
Filed: 1999-02-02
Abstract: PURPOSE: Nematic liquid crystal composition that remains the nematic liquid phase over a wide range of temperature and has a positive dielectric anisotropy with good optical anisotropy and operating voltage characteristics due to cyclohexene derivatives, and thus improved liquid crystal display element by using the composition are provided. CONSTITUTION: A nematic liquid crystal composition characteristically contains a cyclohexene derivative represented as a formula 1 below: wherein R¬1 represents C1-C12 alkyl, C1-C12 alkoxy, F, CN, Cl, halogenated C1-C5 alkyl, and halogenated C1-C5 alkoxy, R2 means C1-C12 alkyl or C1-C12 alkoxy, R¬3 and R¬3' are independently H or F, respectively, and n is an integer of 1 or 2. R¬1 is selected from a group consisting of CN, F, Cl, OCF3, OCHF2, CF3, OCHFCF3 and OCH2CF3, and R¬2 is characteristically ethyl, propyl, butyl, pentyl or hexyl.
Patent KR-20000055051-A (KR)
Inventor: LEE DONG JIN
IPC: F25B15/00
Filed: 1999-02-03
Abstract: PURPOSE: An operation method of an absorptive system is provided to elevate a responding speed of a system by variably controlling the flux of a strong solution flowing into a regenerator. CONSTITUTION: A microprocessor(106) outputs a load control signal to open a three-way valve(101) toward a direction to the term(t2) by the comparison of the operation time counted by a timer(104) with the pre-stored flux control data in a memory(105). A three-way valve driving unit(107) opens the three-way valve toward a direction. A specific amount of the strong solution of an absorber(40) is pumped to a regenerator(10) by a solution pump(50). The strong solution descends while being heat-exchanged with coolant vapor in a rectifier(12) and an analyzer(13). The strong solution is divided into coolant vapor and weak solution by being heated in a GFD(gas-fired desorber)(11). The coolant vapor flows into an evaporator(30) by passing through the processes of rectification and condensation. The pressure of the weak solution is reduced via an expansion valve(66). The flux of the strong solution flowing into the regenerator gradually increases during transition to the moment of normal state. Thereafter, the flux is stabilized.
Patent KR-20000055165-A (KR)
Inventor: LEE JONG HOE
IPC: B44C5/06
Filed: 1999-02-03
Abstract: PURPOSE: A method for producing patterns of waves or grainings of bull's horn for the appearance of polyester plastic products is provided. CONSTITUTION: A method includes a dye retardant polyester resin mixed with a hardener, a hardening accelerator and a dye to a dye affinitive polyester resin added with a hardener and accelerator to mix and harden for plastic products to form patters of waves or grainings like those of ivory or horns caused by the interfacing of two different materials to the effect of achieving the natural appearance of the product material.
Patent KR-20000055474-A (KR)
Inventor: YU BONG RYEOL
IPC: B66B5/00
Filed: 1999-02-06
Abstract: PURPOSE: An emergency device of an elevator is provided to compact an emergency stopping device installed in an elevator by reducing weight and volume and to enhance general driving efficiency of an elevator. CONSTITUTION: A brake(7) formed of L-shaped hook and getting thicker as going downwardly rotate clockwise. The curvature of a face contacting with a guide rail(6) becomes larger as going downwardly. The guide rail is pushed toward a fixed brake(8) while the brake(7) is rotated clockwise by centering on a support axis(4) by the friction with the guide rail. If the brake ascends by the rotation along the guide rail, an elastic vertical force is gradually increased by the shape of the brake(7). The force of friction with the guide rail is increased. Thereby, an elevator car is stopped emergently by the friction force from the guide rail, the brake(7) and the fixed brake(8).
Patent KR-19990072897-A (KR)
IPC: A47C1/025
Filed: 1999-02-24
Abstract: 본 발명에 있어서는, 형성될 외치기어의 외경보다 큰 직경을 가지는 원형의 돌출부가 돌출되도록 판재를 프레싱하며, 이 원형의 돌출부의 외주부 둘레에 기어치가 형성되도록 그 외주부를 판재의 배면측으로 동일 간격으로 프레싱백하여, 원형의 돌출부의 배면측에 형성된 원형의 홈부의 내주면에 연결되는 연결부가 형성되도록 상기 외주부의 프레싱된 부분을 판재의 배면측으로 돌출시킨다. 이러한 과정을 통해 제조된 외치기어는 종래의 것에 비하여 기어성형시에 각 기어치의 팁끝에 형성되는 끌어당겨진 부분을 감소시킬 수 있으므로 그만큼 모재의 판두께를 얇게 하는 것이 가능하다.
Patent KR-20000059848-A (KR)
Inventor: KIM SEONG GI
IPC: H01L21/30
Filed: 1999-03-09
Abstract: PURPOSE: An equipment for fabricating a semiconductor is to monitor whether a source gas is supplied to control a process in a real time, thereby preventing an inferiority or a damage of a wafer. CONSTITUTION: An equipment for fabricating a semiconductor with a focal gas supplying system, including a safety interlock board(40), a digital input output module(42), a main controller(44) and a gas-supplying source(46), comprises two signal transferring units provided between the gas-supplying source and the main controller. In the system, one of the two signal transferring units is to transfer an alarm signal generated from the gas-supplying source to the main controller, and the other is to transfer a result signal to the main controller when the gas supplying from the gas-supplying source is stopped. The gas-supplying source is a focal gas-supplying source.
Patent KR-19990068293-A (KR)
Title: 우산살도금및락카코팅방법
IPC: B05D7/14
Filed: 1999-03-06
Abstract: 본 발명은 양산살의 표면에 도금을 하거나 락카코팅을 하는 방법에 관한 것으로, 스테인레스 스틸제 원통(1)의 주벽(101)과 바닥(102)에 다수의 구멍(103)(104)을 천공하고 상단부 둘레에 돌출테(105)를 형성하고 걸고리(106)를 구비하며 바닥에 뚫어지는 구멍은 양산살의 단면보다 작은 규격으로 구멍을 뚫고, 탈수기(8)의 회전탈수통(7) 내에는 원통(1)이 들어가게 원형륜체로된 홀더(2)(3)를 설치하여 이들을 종횡지지체(4)(5)로 고정시켜서 홀더(2)(3)내에 원통(1)을 삽탈시킬수 있게 구성하여 원통(1) 내에 양산살(9)을 빼곡이 세워서 투입하고 그 상태로 도금조에 투입하여 도금을 한후 수세하여 탈수조에 넣어 탈수시키고 락카코팅액이 용해된 코팅조에 원통체로 넣어서 코팅을 실시한후 건져내어 건조시킴을 순차적으로 실시하는 양산살 도금방법 및 락카코팅방법에 관한 것으로 다공체의 원통을 이용하여 신속하고 능율적으로 양산살을 도금하고 코팅하는 것인데 장소를 적게 차지하고 생산성을 높일 수 있게되는 것이다.
Patent KR-19990077895-A (KR)
Title: 변형가능한 런치 팩
IPC: A45C7/00
Filed: 1999-03-15
Abstract: 연결 패널(38)에 의해 결합된 제1 용기와, 제2 용기(12, 14)를 갖는 부드러운 소재의 저장 팩이 제시된다.  제3 용기(16)는 연결 패널(38)에 완전하게 연결되어 있다.  팩은 세 개의 용기가 공통 면에 나란히 위치하는 펼친 배치로 변형이 가능하다.  용기는 팩의 공통 면에서 세 개의 용기 내의 내용물을 노출시켜 접근하기 위해 상호 간섭이 없는 방법으로 개방되는 덮개(52, 54, 56)를 갖고 있다.  이 팩은 또한 덮개(52, 54, 56)가 우발적으로 개방되지 않도록 내향 위치하는 직립 형상으로 변형하고, 용기는 단열용 에어 갭(air gap)에 의해 상호 분리된다.
Patent KR-20000060465-A (KR)
Inventor: KIM WAN JUNG
IPC: B62D55/00
Filed: 1999-03-16
Abstract: PURPOSE: A carrier for stairs is provided to easily carry luggage in stairs or a slant where that workers carry luggage is hard. CONSTITUTION: A carrier for stairs comprises: for a carrier to equip with a crawler, a vertical frame(20a) to be mounted to a fixing body of the crawler not being interrupted with a crawler belt(15); a support device(20) to be fixed laterally to the vertical frame and to contain a horizontal frame(20b); a luggage stand(22) to be hinged on the rear end of the horizontal frame and to be mounted on the horizontal frame; a hydraulic cylinder(24) to be mounted to the both sides of the luggage stand and the fixing body of the crawler, to be operated vertically by a control device(27), and to rotate the luggage stand in a fixed range.
Patent KR-19990082989-A (KR)
IPC: B41F7/12
Filed: 1999-04-07
Abstract: The printing machine, having a main printing group with two blanket rollers (2, 3), incorporates an additional independent printing group (20) situated before the main one in the direction of the paper's travel and allowing a motif to be printed in at least one color across the whole width of the paper before it passes to the main group. The machine also has a drying unit with UV lamps (27, 28) situated round the additional group's roller (21). The additional group can be used for offset, silk screen or heliographic printing.
Patent KR-20000073026-A (KR)
Inventor: KANG GEUN SUN
IPC: H03M1/34
Filed: 1999-05-04
Abstract: PURPOSE: A latch comparator of an analog-digital converter is provided, which reduces variations in voltages of the drains of MOS transistors constituting a switch circuit to decrease noise generated due to variations in the voltages between the drains and gates of the MOS transistors. CONSTITUTION: A latch comparator of an analog-digital converter includes a comparator, a control signal generator and a latch comparator. The latch comparator(300) has an output driving circuit(310), a switch circuit(320) and a discharge circuit(330). The output driving circuit maintains the voltages of output ports at the same level under the control of a first control signal from the control signal generator during a reset operation and outputs complementary first and second digital signals according to a switching result of the switch circuit during a comparison operation. The switch circuit includes first and second MOS transistors and transmits charges from the output driving circuit to the discharge circuit under the control of first and second analog signals from the comparator. The discharge circuit discharges the charges to ground voltage during the reset and comparison operations under the control of the first and second control signals.
Patent KR-20000073306-A (KR)
Inventor: SIM EUN BO
IPC: E03B11/00
Filed: 1999-05-10
Abstract: PURPOSE: A dew-condensation preventing method is provided to supply clean water with the prevention of the corrosion of a welded portion and dew-condensation due to temperature difference by coating the inner and outer faces of a stainless tank. CONSTITUTION: A water tank(10) installed in the basement of an apartment is formed of a stainless material in the cubic shape to include an inlet and an outlet for water reception and supply. The inner and outer faces of the water tank are coated with a coating agent(15). A welded portion of the water tank is not in contact with water and free from corrosion by the chemical elements contained in the water. Thereby, a water supply source is kept in a clean state all the time.
Patent KR-20000073391-A (KR)
Title: optical recording medium
Inventor: KIM JIN HONG
IPC: G11B7/2403
Filed: 1999-05-10
Abstract: PURPOSE: An optical recorder is provided to simplify the structure thereof without dielectric layers and to enable recording with low laser power less than 5mW. CONSTITUTION: An optical recorder comprises: a first substrate(11); a reflecting layer(12) formed on the first substrate; a recording layer(13) formed on the reflecting layer and being formed of a liquid crystal of an azo group; and a second substrate(14) formed on a surface of the recording layer with a constant space therebetween, so that it absorbs volume expansion due to a thermal deformation of the recording layer on recording and reproduction. The second substrate is attached on a part of the surface of the recording layer using an adhesive.