baber/WOPTO huggingface dataset:
Patent KR-20020034531-A (KR)
Title: Device and method for trnasmitting/receiving radio frequency using smart antenna combined transmission and reception in imt-2000 bts system
Inventor: YOO CHA HUI
IPC: H04B7/155
Filed: 2000-11-02
Abstract: PURPOSE: An apparatus for transmitting and receiving an RF(Radio Frequency) using a transmitting and receiving smart antenna in an IMT(International Mobile Telecommunication)-2000 system and a method therefor are provided to optimize the capacity increase of a forward base station and simply obtain a forward weight value using a reverse weight value by using a smart antenna system in a forward direction and a reverse direction. CONSTITUTION: A plurality of transmitting and receiving smart antennas(100) are composed as an array antenna and is operated by a forming algorithm. An RF receiving unit(200) comprises a plurality of frequency down-converters(210) for down-converting RF receiving signals received through a plurality of transmitting and receiving smart antennas(100) into basebands, and a plurality of demodulators(220) for demodulating the receiving signal with the baseband from a frequency down-converter connected to it among a plurality of frequency down-converters(210). The RF receiving unit(200) has a reverse beam forming module(230) for calculating reverse weight values of a plurality of receiving signals transmitted from a plurality of demodulators(220), multiplying the receiving signals by the reverse weight values, generating a reverse receiving signal, and transmitting the generated reverse receiving signal to a channel element. An RF transmitting unit(300) has a weight value converting unit(310) for receiving the reverse weight values of a plurality of receiving signals from the reverse beam forming module(230) and calculating a plurality of forward weight values using the reverse weight values, and a forward beam forming module(320) for multiplying a plurality of forward transmitting signals received from the channel element by a plurality of forward weight values received from the weight value converting unit(310). The RF transmitting unit(300) has a plurality of modulators(330) for receiving the forward transmitting signals from the forward beam forming module(320) and modulating the forward transmitting signals, and a plurality of frequency up-converters(340) for receiving the forward transmitting signals from modulators connected to it among a plurality of modulators(330), up-converting the forward transmitting signal into transmitting bands, and transmitting the transmitting bands to a terminal through transmitting and receiving smart antennas connected to it among a plurality of transmitting and receiving smart antennas(100).
Patent KR-20020035226-A (KR)
Title: internet connecting method and apparatus using masquerading technique
Inventor: LEE SEUNG DONG
IPC: H04L1/00
Filed: 2000-11-04
Abstract: PURPOSE: An internet accessing method using a masquerading and an apparatus are provided to receive an internet service by using a private IP address given in an official IP address of a damaged line when one line is damaged. CONSTITUTION: Each of a plurality of terminal ports(10) is connected to a subscriber terminal and has a private IP address. A plurality of path ports(40) are connected to the plurality of terminal ports(10) and are paths which communicate with an ISP. Each of the plurality of path ports(40) has an official IP address. A path discriminator analyzes a subscriber signal from the plurality of terminal ports(10) and discriminates a path. A path checking section checks whether damaged ports are included in the plurality of path ports(40). A path determining section determines a path change with respect to a transmitting data path of the subscriber side according to a path discriminating result of the path discriminator. A path connector transmits an official IP address information of a determined path port to an official address when transmitting data to an ISP.
Patent KR-20020036350-A (KR)
Title: a system for managing livestock breeding farm using internet and method thereof
Inventor: LEE CHANG HYEON
IPC: G06Q50/02
Filed: 2000-11-09
Abstract: PURPOSE: A system and a method for managing livestock breeding by using the Internet are provided to make a farmer receive information and a consultation needed for management the livestock by inputting the livestock breeding data to a livestock breeding management server through the Internet. CONSTITUTION: The clients(11-1 to 11-n) of many livestock breeding farms provides the livestock breeding information to a livestock breeding management server(13) through the Internet(12). The livestock breeding management server includes an individual management unit(13-2) to analyze and process the livestock breeding information, a slaughtering rate analyzing unit(13-3) to extract necessary data by comparing the slaughtering information of respective livestock to the breeding information of the livestock breeding farms, a management analyzing unit(13-4) to analyze the information about the cost and earnings provided from the clients, and a central processing unit to control respective units, store the processed data in a livestock breeding management information database server(16), and to provide the data to respective clients.
Patent KR-20010008250-A (KR)
Inventor: LEE DONG HOON
Filed: 2000-11-17
Abstract: PURPOSE: The method for a spot advertisement of a moving picture by continuous arrangement of light emission panels at a subway tunnel is provided to enable a customer in a subway car, which runs fast through the dark tunnel, to obtain the same effect as the moving picture, by arranging and installing many pieces of the moving picture successively on the walls of the subway tunnel. CONSTITUTION: A lot of stop images, which forms the moving picture for several seconds, are arranged in series at the walls of the subway tunnel. The stop images can be recognized as the moving picture by the customer who passes quickly in the subway car. The stop images can be implemented by pictures made of fluorescent material, TV monitors, liquid crystal panels. The stop images are installed on the walls thereof at the height of sight of a common customer, and can be changed by an image controller.
Patent KR-20020038904-A (KR)
Title: Portable Electronic Device for Sucking Air from Cupping Glass
Inventor: JUNG WOO HYUB
IPC: A61M1/08
Filed: 2000-11-18
Abstract: PURPOSE: Provided is an electronic portable cupping cup with the pump in one body. Its user attaches several cups to the parts to be treated simultaneously and operates with one switch. The pressure inside the cup is controlled easily by the user to make an appropriate treatment such as sucking pus or abnormal blood. CONSTITUTION: The device comprises: a body(10) at the side of which is an aeration hole(10a) and a nozzle part(11), making a perfect connection of the cupping vessel(70) and the pump part; inside the body(10), an air -sucking tube(41) being joined to the above nozzle part(11) by the guide tube(41a), an aeration tube(42) being connected to the above aeration hole(10a) and the above pump(40) sucking according to the input voltage from the power source(Vcc); a switching device directing the operation of the above pump(40); and a control part(30) which controls the above pump(40) by inputting the voltage of the above power source(Vcc) according to the operation of the above switching device.
Patent KR-20020048470-A (KR)
Title: Fly wheel of double mass
Inventor: JUNG JAE HUN
IPC: F16F15/30
Filed: 2000-12-18
Abstract: PURPOSE: A double weight flywheel by a double disk drive is provided to reduce vibration transferred into the double weight flywheel by absorbing torsional vibration generated in a crankshaft. CONSTITUTION: A double weight flywheel with a double disk drive comprises a first weight(2) connected to a crank shaft; a second weight engaged with a transmission; spring mounting units formed on the first weight with a specific interval; plural compressed spring divided into first and second compressed springs(3a,3b) by being installed on the spring mounting unit; first and second drive plates(4,5) arranged between the first weight and the second weight; a circular combining unit formed on the first drive plate; plural bolt mounting holes(41) arranged on the circular combining hole; plural protrusion units(43) protruded toward an inner circumference of the first weight; first receiving groove(44) receiving the first compressed spring by being mounted on the protrusion unit; an inner cover arranged on an inner portion of the first weight; and plural second receiving grooves(51a,51b) formed on the second drive plate with a specific interval.
Patent KR-20020049886-A (KR)
Title: Sudden departure preventing device of vehicle
Inventor: KIM HUI YEOL
IPC: B60T17/18
Filed: 2000-12-20
Abstract: PURPOSE: An apparatus for preventing a vehicle from suddenly starting is provided to make braking performed though a driver doesn't press on the brake and to make the brake power improved if a driver presses on the brake, when suddenly starting phenomenon is happened. CONSTITUTION: An apparatus for preventing a vehicle from suddenly starting includes a sudden starting control unit(60), a relay(50), a solenoid valve(28), a master cylinder for a sudden starting(29), and a valve assembly for preventing reverse flow(40). The sudden starting control unit controls to supply battery power if a sudden starting is sensed. The relay supplies battery power according to the control of the sudden starting control unit. The solenoid valve works by the battery power and supplies steering oil of high pressure pressurized by a power steering pump(26). The master cylinder for a sudden starting pressurizes brake oil of a master cylinder reservoir(24) and supplies the brake oil to a wheel cylinder through brake oil passages(25). The valve assembly for preventing reverse flow works by battery power supplied through the relay and shuts off reverse flow of brake oil of high pressure.
Patent KR-20020050358-A (KR)
Title: A data offer service method using internet
Inventor: KIM JIN HO
IPC: G06F17/00
Filed: 2000-12-21
Abstract: PURPOSE: A method for a data providing service using the Internet is provided to offer the data written in a certain format to a member's terminal by collecting various information from the information providers, constructing an information DB server of the collected information, and collecting and searching the relating information requested by a member. CONSTITUTION: The method for a data providing service comprises the steps of requesting the information as a document in a specific format through the member's terminal(S102), searching the data within a data server storing the information provided from the information providers by each category(S104), loading the searched data(S108), and transferring the data to the member's terminal after editing the loaded data as the specific format(S114). In case of not existing the relating information after the data searching, the document is requested to the information provider of the corresponding category relating to the information and the written document is transferred to the data providing server(S112).
Patent KR-20010062594-A (KR)
Inventor: ASAKAWA TETSUO
IPC: H04N1/04
Filed: 2000-12-21
Abstract: PURPOSE: To improve throughput by devising shading operation when reading an image with a sheet through system. CONSTITUTION: An operation parameter required for shading operation or reading operation is set (S901), and shading operation is performed (S902). After shading operation, reading operation is started (S903) and the end of reading is waited (S904). After the end of reading (S905), shading operation is performed (S906). When shading operation is finished (S907) and the next reading is prepared (S908), an operation parameter is set (S909), reading operation is started (S910) and the end of reading is waited (S911). After the end of reading (S912), shading operation is performed (S913). Thus, throughput in continuous reading of plural images is improved.
Patent KR-20020054068-A (KR)
Title: Haet exchanger for gas boiler and manufacture method thereof
Inventor: KIM JIN GON
IPC: F28F9/18
Filed: 2000-12-27
Abstract: PURPOSE: A heat exchanger for gas boiler and manufacturing method of the same are provided to improve efficiency of brazing welding of heating pipes and heat transfer fins on a body of the heat exchanger. CONSTITUTION: Second welding parts(18) are formed by fixing heating pipes(12) on a body(10) of a heat exchanger(100) by argon welding. First welding parts(16) are formed by fixing both sides of heat transfer fins(14) inserted and installed to the heating pipes on the body of the heat exchanger by argon welding. A method comprises the steps of: a first welding process which is installing the heat transfer fins to an inside the body of the heat exchanger fixing the heat exchanger with a fixing device and fixing side flanges of the heat transfer fins on the body of the heat exchanger by argon welding using a first jig; a second welding process which is welding and fixing the heating pipes installed to the heat exchanger to an outside of the body of the heat exchanger using a second jig; and a third welding process which is welding the heating pipes and the heat transfer fins already welded by brazing.
Patent KR-20020053555-A (KR)
Title: Method of manufacturing a semiconductor device
Inventor: PARK CHANG U
IPC: H01L21/76
Filed: 2000-12-27
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to prevent a field oxide film formed in a semiconductor substrate from being exposed through a contact hole during an etching process for forming the contact hole. CONSTITUTION: A trench is formed by the etching process using the patterned nitride film as a mask. After removing the photoresist pattern, a field oxide film(13) is formed in the trench. The salicide(14) is formed on a junction area of the substrate. The first barrier layer(15) of the nitride film is formed on the entire structure including the salicide and an oxide film(16) is formed on the first barrier layer. The photoresist film is formed on the oxide film and a fixed part of the oxide film is exposed by a planarization process and an etch-back process. The second barrier layer(18) and an interlayer dielectric(19) are formed by the plasma heat treating process and the photoresist film is formed on the interlayer dielectric. A contact hole(21) is formed by successively etching the interlayer dielectric, the second barrier layer and the oxide film in order to expose a fixed part of the first barrier layer.
Patent KR-20020054766-A (KR)
Inventor: KIM TAE YEONG
IPC: B22D23/00
Filed: 2000-12-28
Abstract: PURPOSE: A casting method of an aluminum bed plate is provided to increase stiffness as a whole by casting the bed plate so that a bed plate made of an aluminum material envelopes crank journals at journal parts of the aluminum bed plate, thereby reinforcing cohesiveness therebetween. CONSTITUTION: In a casting method of an aluminum bed plate integrally casting crank journals made of different materials supporting a crank shaft with an aluminum bed plate, the casting method of the aluminum bed plate(3) comprises a first process of assembling a lower mold onto the upper surface of a lower base on which a filter is mounted at one side of a runner part one side of which is connected to a down sprue to form a moving passage of molten metal in such a manner that the lower mold is assembled onto the upper surface of the lower base by conforming to ingates of the lower mold correspondingly to the runner part; a second process of assembling the crank journals(1) into the lower mold by inserting the assembling protrusions into the assembling holes(23) after forming assembling holes at both sides of the ingates at each engraving parts of the lower mold corresponding to journal parts(17) of the bed plate(3) in the state that the lower base is assembled into the lower mold in the first process, and forming assembling protrusions corresponding to the assembling holes(23) at the crank journals(1) made of different materials; a third process of encircling and assembling the crank journals(1) into dowel grooves a plurality of which are formed along the edge of the lower mold using front and rear, and left and right side molds through dowel pins at the lower part after the second process; a fourth process of casting the bed plate(3) by assembling an upper mold on the upper part of the front and rear, and left and right side molds that are installed in the third process and assembling a molten metal injection cup for the mother body of the bed plate onto the upper mold correspondingly to the sprue, thereby injecting molten aluminum through the molten metal injection cup; and a fifth process of casting the bed plate(3) by removing the upper and lower molds and each of the side molds after the molten aluminum is hardened after the fourth process.
Patent KR-20020055714-A (KR)
Title: Apparatus for sensing the coke on the coke wharf
Inventor: KIM HO YEONG
IPC: C10B41/00
Filed: 2000-12-29
Abstract: PURPOSE: A coke sensing apparatus is provided on which a plurality of coke sensing sensors arranged parallel to the bottom inclined surface of a coke wharf are mounted so that a worker in operation room discriminates piling shape and piling weight of coke piled on the coke wharf. CONSTITUTION: The apparatus for sensing coke on a coke wharf remotely discriminating piling shape and piling weight of coke piled on the coke wharf, the apparatus for sensing coke on the coke wharf comprises a moving support having a frame which is installed so that it is moved along traveling rails arranged horizontally to the discharge end of the coke wharf, and a mount which is arranged parallel to the inclined surface of the coke wharf from one end fixed to the frame; and a coke sensing part having a plural sensing sensors arranged along the lower surface of the mount to sense coke piled on the inclined surface of the coke wharf, wherein auxiliary rails are adjacently installed to the traveling rails, a plural position sensing targets are installed along the auxiliary rails with the position sensing targets being spaced apart from each other in a certain distance so that the position sensing targets discriminate position of the moving support, and position sensing sensors are installed on the moving support to sense the position sensing targets.
Patent KR-20010022203-A (KR)
Title: 압력식 유량제어장치를 구비한 가스공급설비
IPC: G05D16/20
Filed: 1999-05-27
Abstract: 반도체 제조장치 등에서 사용하는 압력식 유량제어장치를 구비한 가스공급설비를 보다 소형화해서 제조비용의 절감을 도모하는 동시에, 과도유량특성을 개선해서 가스공급개시시의 가스의 오버슈트현상의 발생을 방지하고, 유량제어정밀도나 설비의 신뢰성을 높임으로써, 반도체제품의 품질불량을 적게 하는 동시에 반도체제품의 제조능률을 높이도록 한 것이다. 
     구체적으로는, 오리피스의 상류측압력을 오리피스의 하류측압력의 약 2배이상으로 유지한 상태에서 가스의 유량제어를 행하면서 오리피스 대응밸브를 통해 프로세스로 가스를 공급하도록 한 압력식 유량제어장치를 구비한 가스공급설비에 있어서, 가스공급원으로부터 가스를 수용하는 제어밸브와, 제어밸브의 하류측에 설치한 오리피스 대응밸브와, 상기 제어밸브와 오리피스 대응밸브와의 사이에 설치한 압력검출기와, 오리피스 대응밸브의 밸브기구부의 하류측에 설치한 오리피스와, 상기 압력검출기의 검출압력(P1)에서 유량을 P 1 에서 유량을 Qc=KP 1 (단 K는 정수)로서 연산하는 동시에, 유량지령신호 Qs와 유량연산신호 Qc와의 차를 제어신호 Qy로서 제어밸브의 구동부로 출력하는 연산제어장치로 가스공급설비를 구성한 것이다.
Patent KR-20010022595-A (KR)
IPC: C07D307/62
Filed: 1998-07-24
Abstract: 2-케토-L-굴론산을 40 내지 80℃의 온도에서 진한 무기산과 반응시켜 L-아스코브산을 제조하는 방법이 개시된다.
Patent KR-20010023755-A (KR)
IPC: H03C1/54
Filed: 1998-09-03
Abstract: 길버트 승산기 셀은 에미터 결합 트랜지스터 쌍 및 한쌍의 교차 결합된 에미터 결합 트랜지스터 쌍을 포함한다. 필터는 에미터 결합 트랜지스터 쌍을 한쌍의 교차 결합된 에미터 결합 트랜지스터 쌍에 결합한다. 필터는 각 에미터 결합 트랜지스터 쌍을 각 쌍의 교차 결합된 에미터 결합 트랜지스터 쌍에 직렬로 제각기 결합하는 한쌍의 인덕터 또는 저항기와, 인덕터 또는 저항기 쌍 사이에 접속된 캐패시터를 포함한다. 국부 발진기는 한쌍의 교차 결합된 에미터 결합 트랜지스터 쌍에 결합되고, 데이터 입력은 에미터 결합 트랜지스터 쌍에 결합된다. 한쌍의 교차 결합된 에미터 결합 트랜지스터 쌍에 인가되는 에미터 결합 트랜지스터 쌍의 출력을 저역 통과 필터링함으로써, 저 잡음 플로어의 길버트 승산기 셀 및 직각 위상 변조기가 제공될 수 있다.
Patent KR-20010031872-A (KR)
Title: 알츠하이머 병을 죽기 전에 진단하고, 아밀로이드 침적을생체내에서 단층촬영하고 예방하기 위한 화합물
IPC: A61P25/00
Filed: 1998-11-06
Abstract: 크리사민 G 유도체인 아밀로이드 결합 화합물, 이를 포함하는 약학적 조성물 및 셍체내에서 알츠하이머 병 뇌를 확인 및 다운 증후군과 같은 아밀로이드증이 특징인 다른 병리학적 상태를 진단하기 위하여 이러한 화합물을 사용하는 방법이 상세하게 설명되어 있다. 또한, 크리사민 G와 그것의 유도체를 포함하는 약학적 조성물 및 아밀로이드증 관련 질환에서 아밀로이드-유도 독성 및 세포 퇴화를 예방하기 위하여 이러한 조성물을 사용하는 방법이 상세하게 설명되어 있다. 생검 조직 또는 사후 조직에서 아밀로이드 침적을 염색 또는 검출하기 위하여 크리사민 G 유도체를 사용하는 방법 역시 상세하게 설명되어 있다. 생검 조직 또는 사후 조직의 균질화체에서 아밀로이드 침적을 정량하기 위하여 크리사민 G 유도체를 사용하는 방법 역시 상세하게 설명되어 있다.
Patent KR-20010032745-A (KR)
Title: 액정장치 및 전자기기
IPC: G02F1/1335
Filed: 1999-10-05
Abstract: 컬러  필터의 착색층 R, G, B는 델타 배열로 되어 있다.  그것들의 서브 화소에 전압을 인가하기 위한 데이터선(212)은, 각 색에 대응하는 서브 화소의 화소 전극(234)에, 일정한 순서로 반복하여 TFD(220)를 개재시켜 접속되는 한편, 1개의 데이터선(212)에 공통 접속되는 화소 전극(234)은, 해당 데이터선(212)에 대하여 같은 측에 배치되어 있다.  이로써, 특정색에 있어서의 서브 화소의 전위는, 타색에 있어서의 서브 화소의 전위로부터 균등하게 영향을 받는다.
Patent KR-20010033713-A (KR)
Title: 내치기어용 핀 지지 링의 제조방법, 내접 맞물림 유성기어구조 및 유압모터·펌프
IPC: F04C2/10
Filed: 1999-10-28
Abstract: 핀 (롤러) 지지공 (113a) 내에 있어서의 핀의 미끄럼회전을 좋게 한다. 
     내주에 반원상 핀(롤러) 지지공을 갖는 핀(롤러) 지지 링(110) 과, 각 핀 지지공에 회전가능하게 끼워맞춰진 핀(롤러)(11)으로 내치기어(20)가 구성되며, 이 내치기어에 외치기어(5a,5b)가 내접 맞물림된 내접 기어기구의 상기 핀(롤러) 지지 링의 제조방법으로서, 핀 지지 링 기재(151) 의 내경(øDA)을 다듬질 직경까지 가공하기 전에 링 기재에 대하여 핀 지지공(113a)을 전원공(全圓孔)으로서 절삭가공하고, 이 핀 지지공(113a)의 내면을 롤러 배니싱 가공에 의해 표면 다듬질한 후, 핀 지지 링의 내경을 다듬질 직경까지 확대가공하여 반원상 핀 지지공을 갖는 핀 지지 링을 얻는다. 이와 같이 함으로써, 핀 지지공과 핀 사이를 유체윤활에 가까운 상태로 윤활할 수 있다.
Patent KR-20010034333-A (KR)
Title: 과금처리장치, 과금처리시스템, 및 과금처리용 카드
IPC: G01C21/26
Filed: 1999-01-22
Abstract: 시스템 전체를 간단하게 구성할 수 있으며, 차량의 이용자에 대한 부담을 경감시켜 과금처리한다. 
     차재기 (30) 는 GPS 용 위성 (20, 22, 24) 으로부터의 GPS 신호에 의해 자기의 차량 (32) 의 위치를 특정하며, 지상파 통신에 의해 종합센터 (40) 로 송신한다.     종합센터 (40) 는 지상파 통신에 의해 수신한 차량 (32) 의 위치에 기초하여 과금대상영역에 대한 과금처리 (연산) 를 실시하며, 그 결과를 차재기 (30) 로 송신한다.     차재기 (30) 는 수신한 과금처리결과에 기초하여 프리페이드 카드나 IC 카드 등으로부터 요금수수를 실시한다.
Patent KR-20010040522-A (KR)
Title: 도포형 자기 기록 매체의 하부층용 분말 및 그 제조방법
IPC: C01G/
Filed: 1998-12-18
Abstract: 평균 장축 길이가 0.01 ~ 0.5 μm 이고, 평균 단축 길이가 0.01 ~ 0.05 μm 의 실질적으로 분기되지 않은 침상 입자이며, 장축과 직각방향으로 절단한 단축 단면이 긴 폭과 짧은 폭을 가지며, 이 긴 폭과 짧은 폭의 단축 단면비가 장축 방향에 거의 똑같이 1 보다 크게 되어 있는 평평한 침상 입자로서 이루어지고, 또 100 ℃에서 방출하는 H 2 O 양이 0.1 ~ 2.0 중량% 인 도포형 자기 기록 매체용의 하부층용 분말.
Patent KR-20010041091-A (KR)
Title: 영구 자석과 개선된 구조의 자기 저항체를 구비한 회전전기 기기
IPC: H02K1/27
Filed: 1999-12-17
Abstract: 아마츄어 코일(18)을 구비한 정지자(18)와, 내부의 정지자를 회전시키기도록 장착되고, 영구 자석을 구비한 회전자부와 자기 저항체(220)를 구비한 회전자부를 갖는 회전자(20)를 포함한다. 본 발명은, 회전자가 그 축표면을 통하여 균일하고, 그 접선 방향을 따라서, 각각이 자석에 의해서 부가된 두 극(PSA, PNA)을 한정하는 영구 자석(214a, 214b)을 구비한 극부(212, 214a, 214b)와, 자유 극성을 구비한 두 극(PR1, PR2)을 각각 한정하는 자기 저항체(222)를 구비한 극부의 분포를 갖는 것을 특징으로 한다. 본 발명은 특히 자동차 교류 발전기에 또는 AC 스타터에 적용될 수 있다.
Patent KR-20010042267-A (KR)
Title: 하전입자빔 노광장치 및 노광방법
IPC: H01L21/027
Filed: 2000-02-03
Abstract: BAA 방식의 래스터 스캔을 행하는 편향기에 인가하는 신호를 발생시키는 회로를 개량하여, 스루풋(throughput)을 향상시킨 BAA 방식의 하전입자빔 노광장치를 실현한다. 하전입자빔원과, 양측에 전극을 가지는 복수의 개구가 배열된 블랭킹·어퍼쳐·어레이(BAA)와, 하전입자빔의 편향기와, 하전입자빔의 집속렌즈와, 편향기를 제어하는 편향제어회로와, BAA의 각 전극을 제어하는 노광제어회로를 구비하는 하전입자빔 노광장치에 있어서, 스캔신호를 발생하는 회로를 구성하는 정전류원(46)으로서, 디지털-아날로그 변환기(DAC)등의 전류값이 가변의 것을 사용하고, 스캔 속도를 가변으로 하며, 그 위에 실제의 스캔속도를 측정하여, 소정의 스캔속도가 되도록 정전류원의 전류값을 설정한다.
Patent KR-20020057503-A (KR)
Title: Plasma Display Panel Driven with Radio Frequency Signal
Inventor: JUN U GON
IPC: G09G3/2807
Filed: 2001-01-05
Abstract: PURPOSE: An RF(radio frequency) plasma display panel is provided to attenuate an electromagnetic wave. CONSTITUTION: An RF plasma display panel comprises a first dielectric layer and an RF ground electrode(74) on a lower plate, and a second dielectric layer, first RF electrodes(70A,70B) and second RF electrodes(72A,72B) on an upper plate. A signal having a phase is applied to the first RF electrode(70A) of a first cell. Another signal having an opposite phase is applied to the first RF electrode(70B) of a second cell. Signals having phases opposite to the first electrodes(70A,70B) are applied to the second RF electrodes(72A,72B), correspondingly. The signals applied to the first RF electrodes(70A,70B) and the second RF electrodes(72A,72B) make electric field and magnetic field between the first and the second RF electrodes(70A,70B,72A,72B) have opposite direction so as to reduce an electromagnetic wave within a cell. RF discharge is generated between the RF ground electrode(74) and the first and the second RF electrodes(70A,70B,72A,72B).