baber/WOPTO huggingface dataset:
Patent KR-20000040523-A (KR)
Title: Method for forming aluminum layer of cathode ray tube
Inventor: JEONG HONG PIL
IPC: H01J29/88
Filed: 1998-12-18
Abstract: PURPOSE: A method for forming an aluminum layer of a cathode ray tube is provided by modifying a heating method for forming the aluminum layer on the inside of the panel which a fluorescent layer was formed thereon, in the fabrication process of a panel glass for the cathode ray tube. CONSTITUTION: A method for forming an aluminum layer of a cathode ray tube is achieved by evaporating the aluminum layer on a panel glass in vacuum using a micro-wave as an energy source of an application equipment through a vacuum evaporator.
Patent KR-20000040839-A (KR)
Title: E. coli mutant strain showing decreased nucleic acid degradation and increased protein synthesis
Inventor: LEE KWANG HO
IPC: C12N1/21
Filed: 1998-12-16
Abstract: PURPOSE: E. coli A106 (KFCC-11066) having weak nucleic acid degradation and strong protein synthesis is provided which can be used as an expression host for the production of recombinant proteins. CONSTITUTION: Wild type of E. coli W3110, NM522 and pop2136 are cultivated in LB medium and cells are harvested by centrifugation. NTG is treated and cells are spread on minimal medium plate containing GMP or XMP. Slow growing colonie are selected. The nucleic acid degradation activity of mutants are compared with that of wild type. Three mutants show that the nucleic acid degradation activities are decreased by 70-85% based on the wild type. XMP aminase and trehalose synthetase are expressed highly in the mutant cell. XMP aminase expressed in the mutant is used to produce GMP from XMP and trehalose synthetase is used to produce trehalose from maltose.
Patent KR-20000045819-A (KR)
Title: Television capable of peripheral sound recognition for using headphone
Inventor: PARK JU DEOK
IPC: H04N5/445
Filed: 1998-12-30
Abstract: PURPOSE: A television capable of peripheral sound recognition for using a headphone is provided to enable a user to recognize the peripheral sound even while the user uses the headphone. CONSTITUTION: A television capable of peripheral sound recognition for using a headphone includes a microphone(90), a filter(100), a voice recognizer(100), and a micro computer(20). The microphone(90) picks up peripheral sound and converts the sound to electrical signal. The filter(100) subtracts household band from the output of the microphone. The voice recognizer(100) converts the audio signal from the filter and converts the signal. The micro computer(20) controls an OSD(50) to display the recognized voice signal.
Patent KR-20000046754-A (KR)
Title: Exhaust line assembly
Inventor: CHOI BYUNG CHAN
IPC: C23C14/00
Filed: 1998-12-31
Abstract: PURPOSE: An exhaust line assembly is provided, to prevent the disorder of a vacuum pump and the back-flow of exhaust gas due to the evaporation-adsorption of impurities onto the exhaust line assembly. CONSTITUTION: An exhaust line assembly comprises a bellows (106) which is connected with an exhaust means; an exhaust pipe (101) whose one side is connected with the bellows (106) and whose another side is connected with a vacuum pump (110) for vacuumizing a process chamber (109); and a clamp (102) which connects the exhaust pipe (101) and the bellows (106), wherein the clamp (102) comprises the first lock piece (102a) and the second lock piece (102b) whose one sides are connected by hinge. The first lock piece (102a) is provided with an insertion-type lock screw (103) and the second lock piece (102b) is provided with an insertion groove (104) which contacts with the lock screw (103) when the first lock piece (102a) rotates around a hinge axis.
Patent KR-20000046885-A (KR)
Title: Apparatus for automatic compensating cathode ray tube of television receiver and method for controlling the same
Inventor: PARK DAE SIK
IPC: H04N5/63
Filed: 1998-12-31
Abstract: PURPOSE: An apparatus for automatic compensating cathode ray tube of a television receiver and a method for controlling the same are provided to detect and compensate focus voltage, screen voltage, and heater voltage automatically. CONSTITUTION: An apparatus for automatic compensating cathode ray tube of a television receiver includes a power supply(100), a flyback converter(110), an image processor(120), an amplifier(130), a CPT(color picture tube) circuit(140), a compensation detector(200), an automatic voltage controller(170) and a micro computer(180). The flyback converter(110) receives power from the power supply and provides focus voltage, screen voltage, and heater voltage. The image processor(120) converts brightness and color signal to RGB signals. The amplifier(130) is operated by a control signal. The CPT circuit(140) outputs a signal to a CPT. The compensation detector(200) detects the focus voltage, screen voltage, and heater voltage at the flyback converter(110). The automatic voltage controller(170) compensates the focus voltage, screen voltage and heater voltage.
Patent KR-19990064228-A (KR)
Title: 그람음성 병원체로부터 이종 0-항원을 고 레벨로 발현시키는데유용한 생백신 캐리어 균주 및 생백신으로서 사용되는 이의 유도체
IPC: C12N1/21
Filed: 1996-10-04
Abstract: 본 발명은 그람음성 병원체로부터 이종 O-항원(O-PS)을 발현 및 운반하는데 유용한 약독화 그람음성 생백신 캐리어 균주에 관한 것이다. 상기 균주는 한정된 유전적 일시변이, 바람직하게는 결실로 인해 상동 O-PS의 발현이 결실되어, 상동 또는 이종 LPS 코어 리피드 A에 공유결합되도록 원하는 이종 O-PS를 효과적으로 발현할 수 있다. 본 발명은 또한 이종 유전자 또는 O-PS를 암호화하는 이종 유전자 세트를 포함하는 생백신 캐리어 균주에 관한 것이다. 바람직하게는, 상기 균주는 완전한 스무드형 이종 LPS의 합성에 필요한 유전자를 추가로 포함한다. 본 발명은 또한 바람직하게는 그람음성 장내 병원체에 대하여 면역성을 주기 위한 것으로서, 상기 균주를 포함하는 생백신에 관한 것이다.
Patent KR-19990067275-A (KR)
IPC: B22D11/128
Filed: 1996-10-25
Abstract: The invention relates to a method for guiding strands in a continuous casting installation, in particular an installation for producing thin slabs made of steel, having an ingot mold and a strand-guidance frame which is provided with a cooling device. In this case, heat is extracted indirectly from the strand after it leaves the ingot mold, and the strand, at least in sections, is held in shape, guided in the strand discharge direction and additionally cooled by means of a gaseous medium. Furthermore, the strand is additionally moved in a defined manner and at a predeterminable speed through the strand frame by mechanical means, the speed of the strand being accelerated or decelerated. The invention furthermore relates to a device for carrying out the method. See <cross-reference target="DRAWINGS">FIG. 1</cross-reference>.
Patent KR-19990067499-A (KR)
Title: 휘스커 보강된 세라믹 절삭공구와 그 조성물
IPC: C04B35/565
Filed: 1996-09-20
Abstract: 본 발명의 세라믹 조성물은 출발성분들의 혼합물을 압밀화함으로써 생산된다. 상기 조성물은 하프늄, 몰리브데늄, 지르코늄, 탄탈륨, 니오븀, 바나듐, 텅스텐, 티타늄, 및 이들의 고용체들로 부터 선택되어 이루어진 탄화물, 질화물, 탄소질화물들중 하나 이상의 성분을 50 체적% 보다 많이 함유하여 이루어진 매트릭스를 포함한다. 상기 매트릭스는 조성물의 60 - 99.8 체적% 포함되며, 상기 조성물은 매트릭스 전체에 균일하게 분산된 세라믹 휘스커를 포함하며, 상기 세라믹 휘스커는 조성물의 0.2 - 40 체적% 사이에서 포함되어 이루어진다.
Patent KR-19990076772-A (KR)
Title: 유압 파손의 경우 노즐 제어용 로크
IPC: F02K1/15
Filed: 1996-09-20
Abstract: 동기 케이블(116)로 연결된 노즐 액추에이터(102)를 구비한 유압 시스템에 있어서 제트 엔진 배기 노즐 위치를 로크하기 위한 방법이 제공된다.  상기 동기 케이블(116)은 원추형 브레이크 로킹 메카니즘(120)과 결합해, 유압 파손시 케이블 회전을 방지한다.  노즐(126)은 유압 파손시 적소에 로크된다.  이러한 것은 유용한 스러스트의 중요한 감소를 방지한다.
Patent KR-19990076940-A (KR)
Title: 액체 연료용 연소 장치
IPC: F23Q2/44
Filed: 1997-10-27
Abstract: 연소 심지가 제공된 연소 장치는 연소용 액체 연료를 빨아올리기 위하여 모세관 현상을 사용하고, 소정 시간 동안의 완전 연소 후에 자동 연소 차단을 수행하도록 용이하게 작용한다.  모세관 현상에 의해 흡입부로 액체 연료를 빨아올리고 연소부에서 액체 연료를 연소시키기 위한 연소 심지(6)는 중간 지점에서 연소부 쪽의 분할 소구역(6A)과 흡입구 쪽의 분할 소구역(6B)으로 분할되고, 하나의 소구역은 다른 소구역과 접촉하고 이로부터 멀어지도록 이동될 수 있다.  두개의 소구역이 서로 접촉할 때, 연료는 흡입구 쪽의 분할된 소구역(6B)으로부터 연소부 쪽의 분할 소구역(6A)으로 공급되고, 두개의 소구역이 서로 분리될 때, 연료의 공급은 차단되어 연소 시간을 제한한다.
Patent KR-20000005220-A (KR)
Title: Admission system for an internal combustion engine
Inventor: ARNEGGER KLAUS
IPC: F02B27/00
Filed: 1997-02-06
Abstract: PURPOSE: An admission system for internal combustion engine is provided to be easy production and to create an inexpensive admission system. CONSTITUTION: An admission system for an internal combustion engine, in particular for a motor vehicle has a connecting flange(11) for fastening, a collection unit(12) which has at least one connection for supplying the intake air, and suction pipe connections the number of which depends on the number of suction pipes. The admission system is combined between flange produced by a plastic blowing process and collection unit having suction pipes.
Patent KR-20000005436-A (KR)
Title: Variable pitch structured optical film
Inventor: COBB SANFORD JR
IPC: G02B5/02
Filed: 1997-03-03
Abstract: PURPOSE: A variable pitch structured optical film is provided to increase a curve angle and to reduce a disadvantage like dazzling. CONSTITUTION: The variable pitch structured optical film comprises; a structured optical film with variable pitch peaks; and grooves to reduce the visibility of moire interference patterns; and optical displays incorporating one or more layers of the film. The pitch variations can be over groups of adjacent peaks and valleys or between adjacent pairs of peaks or valleys.
Patent KR-20000051899-A (KR)
Inventor: YOO SEUNG GYUN
IPC: H04N7/15
Filed: 1999-01-27
Abstract: PURPOSE: A method for transmitting an audio signal of a video conference system is provided to reduce a transmission bandwidth by reducing transmission data based upon the difference between a left audio signal and right audio signal when transmitting a stereo audio signal. CONSTITUTION: A method for transmitting an audio signal of a video conference system includes a first through fourth steps. The first step is to convert an input stereo audio signal into a digital signal. The second step is to transmit a side of an audio signal of the converted stereo audio signal and also to transmit the difference of the other side of the audio signal and a side of the audio signal. The third step is to recover the other side of the audio signal by adding a side of the audio signal transmitted to the transmitted difference of the other side of the audio signal and a side of the audio signal. The fourth step is to convert both a side of the transmitted audio signal and the other side of the recovered audio signal into analog signals respectively.
Patent KR-19990068200-A (KR)
Title: 디커플링 캐패시턴스 형성 방법 및 반도체 소자
IPC: H01L27/04
Filed: 1999-01-29
Abstract: 디커플링 캐패시턴스를 제공하는 반도체 소자 및 그 제조 방법을 개시한다.   이 반도체 소자는 절연층 위에 제 1 소자층을 갖는 제 1 회로 영역과, 제 1 회로 영역에 인접하게 배치되며 웰 위에 제 2 소자층을 갖는 제 2 회로 영역을 포함한다.   주입층은 제 1 회로 영역 내의 절연층 아래에 주입되며, 이 주입층은 제 2 회로 영역의 웰에 접속될 것이다.
Patent KR-19990072435-A (KR)
Title: 본딩장치
IPC: B23K20/10
Filed: 1999-02-05
Abstract: 반도체 펠릿의 위치결정 스테이지 및 위치결정 클릭 또는 위치결정 스테이지의 위치결정 구동수단 등의 대규모의 구조가 불필요하여, 장치 원가의 저감을 도모한다. 
     본드 스테이지(15)에 얹어 놓인 반도체 펠릿(10)을 위치결정하기 위한 위치결정 클릭(16)을, 본딩 헤드(5) 또는 이 본딩 헤드(5)를 탑재하는 X Y 테이블(7)에 고정한다.
Patent KR-20000055518-A (KR)
Inventor: BAE HYO DAE
IPC: H01J29/86
Filed: 1999-02-08
Abstract: PURPOSE: A color cathode ray tube is provided to ensure a bright uniformity property of 50 percent or more in a state that a wedge rate of a panel is 200 percent or more, and reduce a manufacturing cost. CONSTITUTION: A color cathode ray tube comprises a panel having a wedge rate of 200 percent or more, a screen in which a black matrix layer is formed at an entire area of an inside efficient surface of the panel except a black matrix dot area and a fluorescent material is coated on the black matrix dot area and a shadow mask in which a plurality of slots are arranged corresponding to the black matrix(BM) dot. In the cathode ray tube, the panel has a light-absorption coefficient of 0.04858-0.01758. The screen has a center BM dot diameter which has an about 100-127 percent larger than a corner BM dot. The shadow mask has a corner slot width which has an about 105-133 percent wider than a center slot width.
Patent KR-19990072717-A (KR)
Title: 컬러필터용감광성착색조성물
Filed: 1999-02-18
Abstract: 컬러필터용 감광성 착색조성물은 (A)안료, (B)바인딩수지, (C) 감방사선 화합물, 및 (D) 용매를 포함하고, (A)안료가 화학식(Ⅰ)으로 나타나는 0.01 내지 0.2㎛의 평균입자크기를 가지는 안료를 함유한다: 
     
       
     
     여기서, Y는 산소원자 또는 황원자를 나타내고; R 1 및 R 2 는 동일 또는 상이하여도 좋고, 각각은 수소원자, 알킬기, 시클로알킬기, 알케닐기, 알키닐기. 아릴기, 아랄킬기, 카르바모일기, 알킬카르바모일기, 아릴카르바모일기 또는 알콕시카르보닐기를 나타내고; R 3 및 R 4 는 동일 또는 상이하여도 좋고, 각각은 알킬기, 시클로알킬기, 아랄킬기, 또는 탄소환식 또는 복소환식 방향족잔기를 나타낸다.
Patent KR-20000056393-A (KR)
Inventor: JANG JAE WON
IPC: H04B7/26
Filed: 1999-02-20
Abstract: PURPOSE: A method for displaying calling time and telephone fees in a wireless communication terminal is provided to display a substantial calling time and to display a total telephone fee, by setting up timer kinds according to communication service providers to drive timers when an information message alarming signal is received one time or two times according to options supplied from the service providers. CONSTITUTION: A method for displaying calling time of a wireless communication terminal having a first/a second timers, comprises the steps of: detecting whether an information message alarming signal is received, by using the wireless communication terminal when a call is transmitted; if the alarming signal is received one time, driving the first timer to count calling time; if the alarming signal is received two times, driving the second timer to count calling time; if a call is completed, completing the counting processes of the first/the second timers to calculate substantial calling time; and displaying the calculated substantial calling time on a displayer.
Patent KR-20000059404-A (KR)
Inventor: KIM YANG O
IPC: H02P23/14
Filed: 1999-03-03
Abstract: PURPOSE: A rotative velocity estimating method and magnetic flux of induction motor is provided to ensure stable estimation even in low velocity area by carrying out estimation without integral calculation and complicated variations. CONSTITUTION: First, an induction motor model is set which is expressed in a dynamic equation composed of some variations and particular constants of the induction motor. A main estimator(4) and a second sub estimator(6) are prepared to converge in motor area and power generation area. A first sub estimator(5) is prepared to converge in motor area and break area. One estimator is selected from the main estimator(4), the first sub estimator(5) and the second sub estimator(6). The selected estimator is used to estimate rotative velocity of the induction motor and magnetic flux of the rotor.
Patent KR-20000061464-A (KR)
Inventor: KIM HONG SEUP
IPC: H01L21/265
Filed: 1999-03-26
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to simplify a manufacturing process and to guarantee a broad contact margin, by eliminating the sidewall spacer formed on the sidewall of a gate for forming a lightly doped drain after source/drain are formed. CONSTITUTION: A gate oxidation layer(13) is formed on a silicon wafer(11) in which an isolation region is defined. A gate poly(14) is formed by evaporating and patterning polysilicon. Next, low-density source/drain(15) are formed by injecting P-type or N-type impurity ions of low density into the silicon wafer. And, a polymer layer is coated on the entire surface of the silicon wafer and a sidewall spacer is formed on the sidewall of the gate poly by a plasma etching. Then, high-density source/drain(17) are formed by injecting into the silicon wafer high-density impurity ions of the same conductivity type as the impurities injected into the low-density source/drain. Annealing the silicon wafer to activate the impurities injected into the low and high-density sources/drains. Lastly, The sidewall spacer remaining on the sidewall of the gate poly is eliminated.
Patent KR-19990083223-A (KR)
Title: 반사경 부착 조명 장치
IPC: F21V7/04
Filed: 1999-04-15
Abstract: 본 발명은 반사면(3)을 가지는 깔때기 형상의 반사경(1) 내에 광원으로 기능하는 관형(管形) 전구를 배치하고, 상기 반사면(3)에는 아주 작은 복수개의 미소 반사면을 비방사(非放射) 형상으로 빈 틈 없이 배치함으로써, 피조사면에서의 광 얼룩 발생을 방지한 반사경 부착 조명장치를 제공한다. 상기 미소 반사면의 외형은, 바람직하게는 벌집 형상이고 크기가 세로 0.01∼5mm, 가로 0.01∼5mm 범위의 실질적으로 거의 동일한 크기로 형성된다.
Patent KR-19990087973-A (KR)
Title: 액티브매트릭스형액정표시장치및그것에사용되는기판
IPC: G09G3/36
Filed: 1999-04-27
Abstract: 종래와 비교하여 적은 개수의 데이터선에 의하여 각 화소의 구동을 행할 수 있는 액티브매트릭스형 액정표시장치를 제공한다. 
     기판에 매트릭스상으로 복수의 데이터선 Dj-2,Dj,···와 복수의 게이트선 GAi,GBi,···를 설치하고, 각 데이터선의 양측에 TFT 1 및 화소전극을 복수의 게이트선의 각각에 대응시켜 설치하고, 데이터선의 양측에 화소전극을 사이에 두는 제1,제2의 게이트선 중의 일방의 게이트선으로 부터의 신호로 제어하도록 복수의 게이트선을 배치하고 있다. 
     또, TFT 를 이루는 게이트전극이 게이트선 자체로 구성되고, 화소전극에 전기적으로 접속한 드레인전극이 게이트전극을 횡단하는 구성으로 되어 있다.
Patent KR-20000067645-A (KR)
Inventor: JANG MYEONG GI
IPC: F21V8/00
Filed: 1999-04-30
Abstract: PURPOSE: An LCD(liquid crystal display) is provided to prevent degradation of a liquid crystal due to heat generated from a light source and occurrence of folds in a reflection plate by providing the reflection plate without being fit between a light source housing and a lower surface of a light introducing plate. CONSTITUTION: A liquid crystal display comprises: a liquid crystal panel; a light introducing plate(33) having a first surface opposite to the liquid crystal panel and a second surface, and a light incident surface at its end surface; a light source(40) arranged opposite to the light incident surface; a first end portion disposed at the first surface side; a second end portion disposed at the second surface side with a distance from the first end portion in a vertical direction; a light source housing(39) having an inner side surface containing the light source therein; and an outer frame(31) formed to block the space between the light source housing and the liquid crystal panel. A lower edge(74) of the top side end is located between a first extending surface(71) and a second extending surface. A first end portion of the light source housing is located at a distance from the light incident surface in a direction perpendicular to the light incident surface.
Patent KR-19990088302-A (KR)
Title: 단결정의제조방법
IPC: H01L21/322
Filed: 1999-05-14
Abstract: 본 발명은 산소 및 질소로 도핑(doping)될때 조크랄스키방법에 따라 견인되는 실리콘 단결정을 제조하는 방법에 관한 것이며, 이때 단결정의 경인중에 단결정은 6.5*10 17 atcm -3 이하의 농축산소 및 5*10 13 이상의 농축질소로 도핑된다. 
     또한 본 발명은 실리콘 융해물에서 단결정을 제조하는 방법에 관한 것이며, 이때 단결정은 질소로 도핑되며, 또 단결정은 속도 V 로 견인되며 여기서 축의 온도구배 G(r)은 단결정과 융해물의 상경계에서 조정되며, 방사상방향의 비율 V/G(r)은 적어도 부분적으로 1.3*10 -3 cm 2 min -1 K -1 이다.
Patent KR-20000075014-A (KR)
Inventor: KIM JAE GEUN
IPC: H01G4/30
Filed: 1999-05-27
Abstract: PURPOSE: A stacked structure of an electric double layer capacitor is provided to obtain the required voltage by connecting two capacitor devices in series in a case. CONSTITUTION: A stacked structure of an electric double layer capacitor comprises two capacitor devices(12). The capacitor devices(12) are connected in series in such a manner that an upper lead line is to be a (+) terminal(16) and a lower lead line is to be a (-) terminal(18). The device(14) is inserted into an aluminum case. The (-) terminal(18) of the device is connected to a lower end of the aluminum case. A (+) pantograph is formed on the (+) terminal(16) of the device(14). The (+) terminal(16) is connected to the (+) pantograph is connected. After inserting a sealing member(26) into an upper portion of the device(14) and a periphery of the (+) pantograph, an aluminum case is sealed.
Patent KR-20010001247-A (KR)
Inventor: PARK JU DEOK
IPC: H04N7/14
Filed: 1999-06-02
Abstract: PURPOSE: A method for verifying password of internet TV is provided to automatically store the ID and password of a user in a web site and recognize an access denial message due to error input of the user's ID and password to automatically access to a corresponding web site using the stored password. CONSTITUTION: A method for verifying password of internet TV comprises a step inputting the password of the TV in order to decide whether a password authorizing mode has a right to read the password stored in a storage mode in case that the comparison result of input password and the stored password is different. Then, the input password and the stored password are compared and the ID and password of a corresponding web site are output if the input password and the stored password are agreed.
Patent KR-19990078584-A (KR)
Title: 폐기물과경화제를이용한건축자재제조방법
Filed: 1999-06-11
Abstract: 본 발명은 폐수처리오니, 폐콘크리트, 분진, 연소재 등의 무기물 폐기물을 건축자재로 활용가능하게 한 폐기물과 경화제를 이용한 건축자재 제조방법에 관한 것으로, 물을 가열하여 이에 스테아린산, 파라핀, 카르복시메칠셀루로스, 폴리비닐알콜, 수산화칼륨을 첨가하여 교반시킨 다음 이에 실리콘을 첨가하여 교반시켜서 경화제를 만들고, 미리 수집된 폐수처리오니, 분진, 폐석고, 연소재, 주물사등 무기물 폐기물을 선별가공처리하여 무기물원자재를 만든 후 상기 경화제 소정량과 물 소정량과 무기물원자재의 소정량을 혼합하여 소정의 형상으로 성형제조한 특징이 있다.
Patent KR-20010002870-A (KR)
Inventor: KIM JIN CHEON
IPC: H03K3/356
Filed: 1999-06-18
Abstract: PURPOSE: A circuit for driving a complementary gate-source clock and a flipflop using the circuit are provided to reduce power consumption and decrease a delay time by a half swing. CONSTITUTION: Clocks having a swing width of VDD/2 are fed to each gate and each source of an NMOS transistor(21) and PMOS transistors(41,42). A gate-source of a transistor in a flipflop is complementary and simultaneously driven with the clock having different phases at 180degrees. Thereby, power consumption is reduced and the same delay time is maintained as a completely swung clock.
Patent KR-20010003897-A (KR)
Inventor: CHOI GWANG SEOK
IPC: H04H60/07
Filed: 1999-06-25
Abstract: PURPOSE: An apparatus for inputting a shorthand letter for caption broadcasting and the input method is provided to enhance a degree of exactness of caption input by reducing a delay time as a difference between a point of time of sound generation and a point of time of caption display. CONSTITUTION: The apparatus for inputting shorthand letter for caption broadcasting and the input method includes following units. Key input units(2,4) are for inputting a shorthand letter for caption broadcasting according to separated times by plural workers. Display units(6,8) are for displaying the letter outputted from the key input units(2,4). Letter correcting display units(10,12) are for displaying letter outputted from the key input units(2,4) in order to correct letter by a correcting worker. Letter correcting key input units(14,16) are for inputting the letter to be corrected by the correcting worker.
Patent KR-20010004132-A (KR)
Inventor: KIM SANG CHEOL
IPC: G09G3/292
Filed: 1999-06-28
Abstract: PURPOSE: A drive method of PDP(Plasma Display Panel) is provided to apply a relative higher discharge voltage to only lines of corresponding common electrode group within respective sub field, thereby increasing the contrast of a screen. CONSTITUTION: The drive method of PDP comprises a step causing a (p + k x j)th(j is integer equal to or greater than 0) common electrode lines(Xn) to be included in a pth(p is integer greater than 0) common electrode group in order to distribute n common electrode lines into k(k is integer greater than 1) common electrode groups. Then, a unit frame to be displayed is equally divided into k sub fields. Finally, a relative higher discharge voltage is applied to the lines of the p-th common electrode group in a pth sub field, thereby erasing the wall charges generated in pixels within a (p-1)th sub field and generating uniform wall charges.
Patent KR-20010004677-A (KR)
Inventor: YANG SEON SEOK
IPC: H02M3/07
Filed: 1999-06-29
Abstract: PURPOSE: A high voltage generator is provided to generate a high voltage of a stable potential level at a high speed with a low power-consumption by adjusting the increasing/reducing of a pumping driving capacity. CONSTITUTION: A pumping driving capacity regulator(400) determines a potential dropping degree of a high voltage according to an activation time length of an output signal of a level detector(100), and adjusts the increasing/reducing degree of a pumping driving capacity according to the determined result. The second oscillator(210) is connected to an output terminal of the pumping driving capacity regulator, and periodically generates a predetermined pulse signal for a high voltage pumping control action according to an activation of the pumping enable control signal. The second pumping part(310) performs a high-voltage pumping action according to a control of a pulse signal generated from the second oscillator.