baber/WOPTO huggingface dataset:
Patent KR-20000025386-A (KR)
Title: Apparatus for coding and decoding video and method therefor
Inventor: SHIN JAE SEOB
IPC: H04N19/30
Filed: 1998-10-10
Abstract: PURPOSE: An apparatus for coding and decoding video is provided to obtain information of diverse image qualities in accordance with a resolution change by structuring diversely subdivided bitstream after reproducing information having a basic image quality. CONSTITUTION: Input data is composed of a mask 1(101) providing information on a shape of an object and a video display terminal(VDT)(102) providing information on an internal texture of the object. Masks 1, 2, and 3 are not necessary in case of coding an entire rectangular screen. Inputted images are converted into images of a half size in breadth and length through a down sampling apparatus(103), and the mask 1(101) becomes a mask 2(104) to be compressed to information necessary for transmission in a shape coder 1(106). The shape coder 1(106) uses a scalable shape coding mode selected for a version 2 working draft of MPEG-4.
Patent KR-19990044869-A (KR)
Title: 인쇄 회로 기판 제조 방법 및 이에 의해 형성된 인쇄 회로 기판
IPC: H05K3/20
Filed: 1998-10-15
Abstract: 본 발명에 의하면 실질적으로 상호 평탄한(coplanar) 상부 표면을 갖는 복수의 전도 범프(conductive bumps)를 포함하는 인쇄 회로 기판(printed circuit board)을 형성하는 방법이 제공된다.   본 발명의 방법은 제 1 두께를 갖는 실질적으로 평탄한 금속층을 유전체의 적어도 하나의 유전체 표면상에 형성하는 단계와, 금속층상에 제 1 포토레지스트(photoresist)를 도포(applying)하는 단계와, 제 1 포토레지스트를 이미지화(imaging)하여 전도 범프의 패턴을 정의하는 단계와, 금속층의 노출 부분을 제 2 두께가 되도록 노출시켜 전도 범프를 형성하는 단계와, 제 1 포토레지스트를 제거하는 단계와, 금속층에 제 2 포토레지스트를 도포하는 단계와, 제 2 포토레지스트를 이미지화하여 회로의 패턴을 정의하는 단계와, 금속층의 노출 부분을 에칭하여 전기 회로를 제공하는 단계와, 제 2 포토레지스트를 제거하는 단계를 포함한다.   또한, 본 발명은 유전체층의 마주보는 면상에 배치되는 두 개의 전도층이 실질적으로 상호 평탄한 전도 범프들 중 적어도 하나에 의해 상호접속되는 인쇄 회로 기판을 마련하는 방법을 제공한다.   본 발명의 방법은 실질적으로 상호 평탄한 전도 범프 및 회로상에 제 2 유전체층을 증착하는 단계와, 적어도 하나의 전도 범프의 상부 표면을 노출시키는 단계와, 제 2 유전체층과, 전도 범프의 노출된 상부 표면상에 제 2 금속층을 증착하는 단계를 더 포함한다.   또한, 본 발명의 방법은 보강 패널(reinforced panel)을 마련하는 방법에 관한 것이다.   본 발명의 방법은 적어도 하나의 유전체 기판 표면상에 제 1 높이를 갖는 금속층을 도포하는 단계와, 금속층에 제 1 포토레지스트를 도포하는 단계와, 포토레지스트를 이미지화하여, 그 내부에 개구를 정의하는 적어도 하나의 잔여 포토레지스트 부분과, 적어도 하나의 노출된 금속층 영역을 제공하는 단계와, 노출된 금속층 영역을 제 2 높이가 되도록 에칭하는 단계와, 잔여 포토레지스트를 제거하여, 유전체층과, 제 2 높이를 갖는 적어도 하나의 영역 및 제 1 높이를 갖는 적어도 하나의 영역을 포함하는 금속층을 포함하는 다층 구조(multi-layered structure)를 제공하는 단계를 포함한다.
Patent KR-19990014566-A (KR)
Title: 선택통화 시스템
Filed: 1998-11-23
Abstract: 개시된 선택통화 시스템은 게임방 등의 장소에서 하나의 메인 장치의 제어에 따라 여러 사람이 음성신호를 동시에 송수신할 수 있도록 함은 물론 사용자가 특정 채널과의 송수신을 선택할 경우 선택된 채널간의 통화만 가능하도록 하는 것이다. 
     본 발명은 복수개의 PC와, PC 각각에 설치된 음성신호 송수신 스위칭장치와, 음성신호 송수신 스위칭장치 각각에 연결되는 헤드셋 장치와, 복수개의 음성신호 송수신 스위칭 장치가 모두 연결된 메인 장치로 구성되어, 음성신호 송수신 스위칭장치를 통해 사용자가 음성신호를 송신하고자 하는 통화 대상자를 선택하면 메인 장치에서 해당하는 각 채널로 음성신호 송신을 알리기 위한 표시제어신호를 출력하고, 해당하는 각 채널의 사용자로부터 음성신호 수신 응낙이 있는 경우 사용자의 음성신호를 해당 채널로 송신함과 동시에 해당 채널의 사용자 음성신호를 수신받아 헤드셋 장치를 통해 각 채널간의 음성신호 송수신이 이루어지도록 하며, 해당하는 각 채널의 사용자로부터 음성신호 수신 응낙이 없는 경우 사용자의 음성신호만 해당 채널로 송신하고 해당 채널의 사용자 음성신호는 수신되지 않도록 한다. 
     따라서, 본 발명은 각각의 PC에 연결된 음성신호 송수신 스위칭 장치를 사용하는 모든 통화자의 음성신호를 하나의 메인 장치를 통해 제어하기 때문에 설치 비용이 크게 절약됨은 물론 선택적인 통화가 가능한 효과를 제공한다.
Patent KR-20000034623-A (KR)
Title: Liquid crystal display and sound output apparatus for making self-diagnosis by answer to query for gas boiler
Inventor: KIM CHANG YEON
IPC: F24H9/00
Filed: 1998-11-30
Abstract: PURPOSE: A liquid crystal display and sound output apparatus for making self-diagnosis by answer to query for gas boiler is provided to allow an outlet temperature of heating water discharged from the primary heat exchanger of a gas boiler containing a microcomputer functioning answer to query and to allow the state of decision whether operation of components is in order to display in the liquid crystal display(LCD) and to alarm by sound. According to this arrangement, users take necessary measures to maintain and repair the boiler immediately, and running life of the gas boiler can be extended, so that the users' satisfaction to the quality of the boiler is increased. CONSTITUTION: A liquid crystal display and sound output apparatus for making self-diagnosis by answer to query for gas boiler comprises a sensor member(110); a load drive member(120); a first response member(130) for detecting whether the operation of the load driver member is in order; a second response member(150) for detecting whether the operation of a circulating pump(26) is in order and outputting a corresponding signal; a control unit(160) for controlling a main body; a control unit(170) for controlling LCD display and sound output; a liquid crystal display(180); and a sound output member(200). The control unit(160) consists of a microcomputer which operates and controls data to input the signals of the sensor(110), the first response member(130), and the second response member(150), and then output corresponding signals to the load drive member(120). The control unit(170) also consists of a microcomputer which controls signals corresponding to a state determined from the control unit(160) whether the operation of the load driver member is in order and outputs the signals to the LCD and sound output member.
Patent KR-20000038857-A (KR)
Title: Apparatus for radio data communication of mobile communication terminal using infrared port
Inventor: LEE SEONG HAN
IPC: H04B1/40
Filed: 1998-12-09
Abstract: PURPOSE: An apparatus for a radio data communication of a mobile communication terminal using an infrared port is provided to receive and transmit data between a mobile terminal and other system by infrared radio, thereby reducing the costs. CONSTITUTION: An MSM(Mobile Station Modem)(11) having a micro processor, all sorts of control and interface chip therein, controls the operation of each constituent block of the terminal, processes CDMA signal, and especially output a control signal for receiving and transmitting an infrared radio signal. An infrared controller(12) supports an infrared protocol in accordance with a control signal for receiving and transmitting the infrared radio signal output from the MSM. An infrared transceiver(13) performs data communication through the infrared radio signal by forming radio data link with other system in accordance with the infrared protocol supported by the infrared controller.
Patent KR-19990063008-A (KR)
Title: 플라즈마 표시 장치용 배면패널 및 세라믹 그린테이프 및 그 제조방법
IPC: C03C14/00
Filed: 1998-12-11
Abstract: 금속기판 전체에 형성되어있고 그 기판에 결합되어 있는 유전층을 갖는 금속기판으로 된 배면판과 배면패널으로부터 일정한 간격을 갖는 전면패널로 구성된 플라즈마 표시장치가 개시되었다. 전도성 전극들이 배면패널의 유전층 상에 또는 내에 형성된다.  배면패널의 재료들은 전면패널의 열팽창 계수와 맞는 열팽창 계수를 갖는 재료로 선정된다.  결합된 어셈블리를 동시 소성하기 전에 그린 테이프를 엠보싱하여 배면패널 상에 격벽들을 형성한다.  그린 테이프는 압착중에 엠보싱 부재들과 간격 부재들을 어셈블리하여 형성한 엠보싱 공구와 맥동성 압력을 이용하여엠보싱한다. 엠보싱 공구는 엠보싱 공구 바깥쪽에 실장된 탄성 스페이서들을 포함하며 이 탄성 부재는 엠보싱 동안에 압축되어 있다가 엠보싱이후 엠보싱 공구에서 엠보싱된 그린 테이프를 빼내기 좋게 할 수 있는 위치에 설치한다.
Patent KR-20000039784-A (KR)
Title: Hands-free transfer apparatus in receiving command call
Inventor: CHO NAM SEON
IPC: H04M1/02
Filed: 1998-12-16
Abstract: PURPOSE: A hands-free transfer apparatus in receiving a command call is provided to prevent command call detection by others and a speaker output of a voice signal interfering others by transferring to a hands-free, or earpiece function. CONSTITUTION: A key input part(1) inputs each key to set up the command call receiving time. A decoding part(2) decodes the values of keys inputted at the key input part(1). A control part(3) outputs a control signal to output a voice signal, received according to a result decoded at the decoding part(2), through a speaker(SP) or an earpiece(EP). A memory part(4) memorizes the command call receiving time values according to the control signal of the control part(3). A voice signal receiving part(5) receives a voice signal inputted from the opposite side. A voice signal separating part(6) separates the voice signal received at the voice signal receiving part(5) into a voice signal by a command call mode or a voce signal by the general call mode. An alarm/display part(7) annunciates and displays to a user in case that the command call receiving time is exceeded.
Patent KR-20000043092-A (KR)
Title: Apparatus for mounting photosensitive belt for printer
Inventor: BANG JUNG HUN
IPC: G03G21/00
Filed: 1998-12-28
Abstract: PURPOSE: An apparatus for mounting a photosensitive belt for a printer is provided to conveniently assemble or disassemble the photosensitive belt as being received in the apparatus for mounting the belt without interference between the belt and a plurality of rollers. CONSTITUTION: An apparatus for mounting a photosensitive belt for a printer for mounting or removing a caterpillar type photosensitive belt on or from a belt unit mounted in a main body of a printer and including a plurality of supporting rollers(11-13) and a backup roller(14), includes a base plate(110) formed in the shape of plate and having a surface facing to an end part of the respective rollers when being inserted in the main body, a pair of upper and lower supporting units(122,124)) approaching or separating from each other with relation to the base plate for alternatively supporting the photosensitive belt inside by contacting, a pair of left and right supporting units(132,134) approaching or separating from each other with relation to the base plate for alternatively supporting the photosensitive belt inside by contacting, and a moving unit(142,144,146) for moving the pairs of upper and lower supporting units and the left and right supporting units to approach or separate each other, wherein the photosensitive belt runs by being contact-supported by the supporting and backup rollers after being mounted in the main body.
Patent KR-20000044102-A (KR)
Title: Device for earthing static electricity of head drum assembly
Inventor: OH YONG GYU
IPC: G11B5/127
Filed: 1998-12-30
Abstract: PURPOSE: An earthing device for the static electricity of a head drum assembly is provided to promptly eliminate the static electricity and to decrease cost by reducing the number of components. CONSTITUTION: An earthing device(100) is arranged on a deck chassis corresponding to a rotary shaft(21). A boss is extended toward the rotary shaft on a deck chassis. The upper end of the boss is opened as a through hole, and a guide groove is formed in the boss. A carbon tip(120) is placed in the guide groove for having an upper end exposed out of the through hole. Thus, the upper end of the carbon tip contacts to the rotary shaft. A spring is interposed between the lower face of the carbon tip and the guide groove to maintain the contacting state of the rotary shaft and the carbon tip. The static electricity generated by a tape driving along the surfaces of upper and lower drums(22,23) is absorbed in the carbon tip and earths to the deck chassis. Herein, the earthing passage is reduced for rapidly eliminating the static electricity.
Patent KR-20000044329-A (KR)
Title: Method for processing calls received to exclusive line in private exchange
Inventor: KIM KYO WON
IPC: H04M3/42
Filed: 1998-12-30
Abstract: PURPOSE: A method for processing a call received to an exclusive line in a private exchange is provided to redial another number, when a telephone message of a transmitter is wrong or when an extension line connected by the transmitter is busy, for the call received to the exclusive line in the private exchange. CONSTITUTION: A method for processing a call received to an exclusive line in a private exchange comprises the steps of: executing a call connection for the call to the exclusive line; if the call is not connected, receiving a dialled number to redial the number, in a state of the call being connected to the exclusive line. The step of connecting the call comprises the steps of: checking the dialled number received to the exclusive line, and if the dialled number is wrong, delivering an error tone; dialling the number received to the exclusive line, and if the exclusive line is busy, delivering a busy tone, and if the exclusive line is not busy, delivering a ring.
Patent KR-20000044913-A (KR)
Title: Sense amplifying circuit
Inventor: CHA BYUNG GWON
IPC: G11C11/34
Filed: 1998-12-30
Abstract: PURPOSE: A sense amplify circuit is provided to reduce an active current consumed in an output driver circuit by disabling the output driver circuit regardless of output data of a differential sense amplifier in an invalid data sensing section. CONSTITUTION: An ATD(address transition detection) circuit(206) detects an address transition for generating a pulse. A delay circuit(205) receives the pulse for outputting a delay signal(SAE1). The ATD circuit generates an output signal of a high level by using the address selected by detecting the address transition. And, an output signal of a low level is outputted by using the next address transition. Moreover, the ATD circuit is disabled after a delay time by the delay circuit. After enabling the output signal of the ATD circuit, the delay signal turns off a NAND gate(G1) of an output driver circuit(204) for the period generating an invalid data. Therefore, the amount of current consumed by the invalid swing of the data outputted through an output terminal(SAOUT) is reduced.
Patent KR-20000047166-A (KR)
Title: Genomic dna sequence of syg972 gene specific on cell growth inhibition and cell differentiation, and promoter thereof
Inventor: CHUNG NYUN CHUL
IPC: C12N15/12
Filed: 1998-12-30
Abstract: PURPOSE: A genomic DNA sequence of SYG972 gene specific on the cell growth inhibition the and the cell differentiation, and promoter thereof are provided which is used for designing and screening of anti-cancer agents CONSTITUTION: A SYG972 gene is correlation with the differentiation and death of the cells and is drastically increased when the myeloid leukemia cell line HL60 is differentiated. The genomic DNA of SYG972 consists of four exons and three introns. The promoter is located at 5' terminal portion of the transcription initial region and has the 3kb of size. The method for isolating the genomic DNA of the SYG972 gene comprises the steps of: inoculating phage into K802 host bacteria and incubating on agar medium; transferring the hemolysates into the membrane; denaturing and crosslinking the hemolysates; southern blotting with alpha-32P labeled dCTP; and exposing to X-ray.
Patent KR-20000064542-A (KR)
Title: 반도체디스크장치
IPC: G11C29/00
Filed: 1998-01-23
Abstract: 반도체디스크 장치에 있어서, 기억부 (4) 에 격납되어야 할 1 섹터분의 데이터를 복수의 뱅크로 분할하고, 이 뱅크에서마다 ECC 데이터를 작성함으로써 에러비트가 다수 발생해도 에러 정정이 가능하도록 대응하는 기능을 향상시킬 수 있다.
Patent KR-19990087687-A (KR)
Title: 플루오르화 방향족 및 플루오르화 질소-함유 헤테로-방향족을제조하는 방법
IPC: C07C205/12
Filed: 1997-02-28
Abstract: 반응 매질중에서 플루오라이드(예: KF)를 사용하여 할로겐 교환에 의해 화학식 I의 상응하는 Cl 또는 Br-함유 화합물로부터 화학식 I의 플루오르화 방향족 화합물을 제조하는 방법이 공지되어 있다.  본 발명에 따라, "할렉스" 반응(할로겐을 불소로 치환)이 화학식 III, IV 및/또는 V의 화합물을 함유하는 반응 매질에서 수행된다.  이 방법은 보다 온화한 조건에 적용될 수 있고 생산량이 많고 부산물이 보다 적은 특히 유리한 방법을 제공한다.  화학식 I의 플루오르화 방향족 화합물은, 예를 들어 활성 제제의 합성을 위한 중간체 생성물로서 사용된다. 
     화학식 I 
     
       
     
     화학식 III 
     
       
     
     화학식 IV 
     
       
     
     화학식 V 
     
       
     
     상기식에서, 
     W, X, Z, R 1 , R 2 및 R 16 내지 R 24 는 발명의 상세한 설명에 제시된 의미를 가진다.
Patent KR-20000064919-A (KR)
Title: 열펌프용 제상 제어
IPC: F25B13/00
Filed: 1998-01-20
Abstract: 열펌프용 제상 제어는 특히 계산된 조건이 초과될 때 제상을 개시한다.  이들 조건은 2개의 측정된 온도의 최대 온도차와 이들 측정된 온도의 현재 차이에서 허용될 수 있는 차이에 대한 제한치를 포함한다.  이들 2개의 측정된 온도는 열펌프의 실내 코일 온도와 실내 코일에 의해 가열되는 실내 공기 온도이다.
Patent KR-20000010688-A (KR)
Title: Bipolar plate for filter press electrolyzers
Inventor: FEDERICO FULVIO
IPC: C25B11/043
Filed: 1997-05-06
Abstract: PURPOSE: The aim is to overcome the problems of the prior art by providing for a method for protecting the composite graphite (or conductive carbon), thermoplastic polymer in those areas where the surface of the plates faces the longitudinal manifolds. CONSTITUTION: Bipolar plate made of a composite material for use in a filter-press electrolyzer comprises a central portion (6) which is electrically conductive and is obtained by heat-pressing of a mixture of graphite or conductive carbon and a thermoplastic polymer powder resistant to corrosion and two terminal portions (7,8)containing the distribution holes (2,3,4,5) for the inlet of the fresh electrolytes and for the outlet of the exhausted electrolytes and electrolysis products. The terminal portions are integral with the central portion and are obtained during the heat-pressing from a mixture of graphite or conductive carbon and the thermoplastic polymer powder with a ratio between the powders lower than that of the central portion.
Patent KR-20000011049-A (KR)
Title: Electrically operative turning operator and wing mirror having this
Inventor: OESTERHOLD GOALAN BUND
IPC: B60R1/074
Filed: 1997-05-14
Abstract: PURPOSE: The turning operator having operation convenience and a simple structure, for reducing the production expenses because a producer does not have to differ two shapes of turning operators is provided. CONSTITUTION: The 2nd turning unit which is a frame(12) has a flat bottom plate(201) having a circle-shaped opening(202) where a main axis(101) is penetrated. The circle-shaped opening(202) is divided by a ring-shaped frame unit(203) and is placed on the upper part of a base flange(102). The turning operator(10) additionally has an electric motor(20) equipped on the frame(12) to electrically operate the turning operation. The driving axis(20') of the electric motor is connected to the main axis(101) by mediating an electric-operating device(21). By all the constitution, the production expenses is reduced because of unnecessary distinction of the turning operators.
Patent KR-20000016533-A (KR)
Title: Glass composition and chemically tempered glass substrate
Inventor: CHOPINET MARIE-HELLE
IPC: C03C21/00
Filed: 1998-04-09
Abstract: PURPOSE: A glass composition is provided to generate a stress the same as requirement for applying to flight window glass type and to have a good hydrolysis resistance. CONSTITUTION: The invention concerns a glass composition for transformation into glass fabric, comprising the following constituents in proportions by weight:SiO2:55-71 %; Al2O3:greater than 2 %; MgO:4-11 % and greater than 8 % if Al2O3 less than 5 %; Na2O:9-16.5 %; K2O:4-10 %.
Patent KR-20000016635-A (KR)
Title: Combination of acid protease enzymes and acidic buffers and uses thereof
Inventor: NORTON SCOTT J
IPC: A61Q19/00
Filed: 1997-06-13
Abstract: PURPOSE: A combination of an acid protease enzyme, an acidic buffer and uses thereof are provided for useful for treating skin conditions, diseases or disorders. CONSTITUTION: The invention relates to compositions which comprise at least one acid protease enzyme and an acidic buffer, the acidic buffer comprising an acid and a pharmaceutically or cosmetically acceptable carrier, which compositions are useful for treating skin conditions, diseases or disorders.
Patent KR-20000050838-A (KR)
Inventor: LEE BONG GU
IPC: G02B27/18
Filed: 1999-01-15
Abstract: PURPOSE: A mock-up image making device is provided to scan image signals and display the signals on a monitor connected to a personal computer or output the signals in an LCD projector. CONSTITUTION: A mock-up image making device comprises a mirror(25), a lens(26), a CCD section(27), a CCD signal processing section(28), an A/D converter(29), a controller section(20), and a scanner means(40). The mirror(25) reflects an image. The lens(26) focus the image which is reflected in the mirror(25). The CCD section(27) converts the image to electrical signals. The CCD signal processing section(28) processes the electrical signals of the CCD(27). The A/D converter(29) converts the image signals of the CCD signal processing section(28) to digital signals. The controller section(20) controls the image processing data of the A/D converter(29). The scanner means(40) is driven by the signals of the controller section(20).
Patent KR-20000051207-A (KR)
Inventor: LEE CHAN SOO
IPC: G01R19/165
Filed: 1999-01-19
Abstract: PURPOSE: A current level compensation apparatus is provided to achieve an extended current measuring area and enhanced accuracy of current measuring by compensating a low current characteristic. CONSTITUTION: An apparatus comprises a current transformer(11) for applying a current inputted to a first side to a second side, an input converter(12) for amplifying the current applied from the current transformer(11) and performing a non-linear conversion, a system multiplexer unit(15) for receiving outputs from the current transformer(11) and the input converter(12) and selectively outputting data via a single data channel, an analog-to-digital converter(13) for converting an output from the system multiplexer unit(15) into a digital signal, and a microcomputer(14) for calculating a current value in accordance with an output from the analog-to-digital converter(13) and outputting a control signal.
Patent KR-20000051596-A (KR)
Inventor: KIM SEONG UN
IPC: H01J29/70
Filed: 1999-01-23
Abstract: PURPOSE: A coma free apparatus of a deflection yoke is to provide a power by having a coil of a magnetic piece in a circuit board through a guide piece built in a rear cover as one body and a guide groove formed by the guide piece, and to reduce a manufacturing cost by having the guide piece built in the rear cover as one body. CONSTITUTION: A coma free apparatus of a deflection yoke comprises a coil separator, horizontal and vertical deflection coil, a magnetic piece(40), a circuit board and a guiding element(100). The coil separator further comprises a screen unit, a rear cover(12) and a neck unit. The screen unit is coupled to a screen surface of a cathode ray tube. The neck unit is extended from a central surface of the rear cover to be connected to an electron gun part of the cathode ray tube. The horizontal and vertical deflection coils form horizontal and vertical deflection magnetic fields, established on internal/external surfaces of the coil separator. The magnetic piece wound with a coil(41) corrects a mis-convergence on a screen, established to face each other on the rear cover of the coil separator with a neck part as a center. The circuit board is established at a side surface of the coil separator and is positioned to supply a power to the magnetic piece. The guiding element guides the coil of the magnetic piece to the circuit board, established on the rear cover adjacent to the circuit board as one body.
Patent KR-19990068196-A (KR)
Title: 솔더 볼 장착장치
IPC: B23K3/06
Filed: 1999-01-29
Abstract: 본 발명은 솔더 볼을 하나의 제품위에 장착하는 솔더 볼 장착장치에 관한 것으로서, 이 장치는 솔더 볼이 저장되어 있는 솔더 볼 공급부; 솔더 볼 공급부의 하부면에 다수의 솔더 볼 흡인개구를 갖는 흡인헤드; 솔더 볼을 상기 솔더 볼 흡인개구에 흡인하기 위하여 상기 흡인헤드에 연결된 흡인수단; 상기 흡인헤드를 수직으로 이동시키는 리프트수단; 상기 흡인헤드내의 진공도를 솔더 볼을 흡인하기 위한 제1압력과, 제1압력보다는 낮고 흡인된 솔더 볼을 충분히 고정할 만큼 높은 진공도인 제2압력에 조절하고 설정하는 압력조절수단을 구비한다.  흡인헤드가 리프트수단으로써 솔더 볼을 흡인하는 낮은위치에 흡인헤드가 배치되는 경우에, 압력조절수단은 흡인헤드내의 진공도를 제1압력에 조절하고 설정하며, 흡인헤드내의 진공도가 제1압력에 도달하는 경우에는 리프트수단은 흡인헤드를 위쪽으로 이동시키고, 그 후 압력조절수단은 흡인헤드내의 진공도를 조절하기 시작함으로써 제2압력에 설정한다.
Patent KR-19990037872-A (KR)
Title: 전반사층과패턴에의한엘씨디백라이트용도광판
IPC: G02F1/1335
Filed: 1999-02-08
Abstract: 본 발명은 각종 액정 표시장치 조명용으로 사용되는 슈퍼-트위스티드-네마틱 액정표시장치(STN LCD) 또는 박막 트랜지스터 액정표시장치(TFT LCD)등에 후방 조명용으로 사용되는 면광원(面光源) 장치에 관한 것으로, 도광판 상단부에 인쇄 및 금형식각 또는 가공에 의해 타원 반구형의 패턴을 다수 형성하고, 그 도광판의 하단부에는 전반사층을 형성하여, 출광하는 빛의 방향성을 수직 성분화하고 빛의 손실을 최소화하여 고휘도 및 휘도 균일도를 구현하는 효과가 있는 전반사층과 패턴에 의한 LCD 백라이트용 도광판에 관한 것이다.