baber/WOPTO huggingface dataset:
Patent KR-20040106970-A (KR)
Inventor: PARK JIN HO
IPC: G09G3/20
Filed: 2003-06-10
Abstract: PURPOSE: A liquid crystal display device is provided to prevent the distortion of the screen quality by differentiating the waveform of the gate driving signal from the waveform of the data signal. CONSTITUTION: A liquid crystal display device includes a liquid crystal display panel, a data driving unit(440), a gate driving unit(450) and a timing controller(500). The liquid crystal display panel displays the image by receiving the image data from outside. The data driving unit outputs the image data to the liquid crystal display panel. The gate driving unit outputs the gate driving signal to the liquid crystal display panel. The timing controller outputs the first control signal to control the output of the gate driving signal and the second control signal to control the output of the image data. And, the timing controller transmits the second control signal through the wire formed on the liquid display panel.
Patent KR-20050000009-A (KR)
Inventor: YANG WON HOI
IPC: E02B3/06
Filed: 2003-06-23
Abstract: PURPOSE: A sectional pier wharf is provided to exchange seawater by forming a wharf using two unit blocks and to cut down the construction cost by simplifying the structure of a wharf. CONSTITUTION: The sectional pier wharf(W) comprises the steps of forming a foundation(4) by paving ripraps on the seabed(2), installing two unit blocks(1) having the symmetrical shape on the riprap foundation(4) to make an upper plate(9) in contact with a floor plate(8) of a unit block(1), and overlapping flat plates(22,22a) of rubber bands(21,21a) on steel piles(11a,11b) where each unit block(1) is in contact, then connecting with many bolts(23) and nuts(24).
Patent KR-20050000191-A (KR)
Inventor: CHOI YOUNG SIN
IPC: B05B12/02
Filed: 2003-06-23
Abstract: PURPOSE: An automatic aerosol spraying apparatus is provided which has a noise dampening capability by preventing a magnetized iron core from contacting with a spring, thereby enabling the apparatus to continuously spray aerosol even at night or during sleep with enhanced noise reduction. CONSTITUTION: The automatic aerosol spraying apparatus comprises: a solenoid(302) having a central groove(306) and a spring connection portion(305) with a groove(305a); a magnetized iron core(303) inserted into the central groove(306) of the solenoid(302) and having a recess(303a) formed at its lower end; a spring(304) inserted into the groove(305a) of the spring connection portion(305); and an elastic projection(1) outwardly bulging in a state in which it is fitted into the recess(303a) of the magnetized iron core(303). When the magnetized iron core(303) retracts, a gap having a height corresponding to a length of a bulging part of the elastic projection(1) is created between the lower end of the magnetized iron core(303) and the spring connection portion(305) by the elastic projection(1) fitted into the recess(303a), thereby preventing the magnetized iron core(303) from contacting with the spring(304).
Patent KR-20050000230-A (KR)
Inventor: PARK BYOUNG HO
IPC: A61K9/20
Filed: 2003-06-23
Abstract: PURPOSE: Provided is a method for manufacturing glimepiride tablets which have excellent and uniform dissolution rate with neither pulverization of drugs nor addition of surfactants. CONSTITUTION: To increase dissolution rate of drugs with neither pulverization of drugs nor addition of surfactants, the glimepiride tablets are manufactured by dissolving glimepirides alone or with water soluble polymers in an appropriate solvent and spraying the glimepiride solution to pharmaceutically acceptable excipients in a fluid bed granulator.
Patent KR-20050007825-A (KR)
Inventor: IHM JONG TAE
IPC: H04B17/00
Filed: 2003-07-11
Abstract: PURPOSE: A device and a method for measuring a quality of a location-based service are provided to store all records to the end from the beginning of a location-based service, and to supply statistics on the records in various types, so that a mobile communication service provider can measure the quality of a self location-based service to more exactly conduct an optimizing work of the location-based service. CONSTITUTION: A data storage(210) stores quality measurement data. A display(208) displays a state of a mobile communication terminal(110) and quality measured results. An external interface(200) transceives a control signal with a monitoring terminal(174). A communication module unit(204) transceives a quality measurement message transceived from the mobile communication terminal(110). A power unit(214) supplies power. A microprocessor(202) receives the quality measurement message to generate the quality measurement data, and controls the quality measurement of a location-based service in real time.
Patent KR-20050008166-A (KR)
Inventor: KIM YONG HWAN
IPC: H03G7/00
Filed: 2003-07-14
Abstract: PURPOSE: An apparatus for amplifying an audio signal is provided to reduce the overall layout by amplifying the audio signal by using the reference voltage outputted through the reference terminal formed at the volume controller. CONSTITUTION: An apparatus for amplifying an audio signal includes a volume controller(23), a reference terminal(23a), a bias terminal(24d) and an amplifier(24b). The volume controller controls the volume of the audio signal outputted into the vehicle. The reference terminal is formed on the volume controller to output the reference voltage. The bias terminal supplies the bias voltage set with reference to the reference voltage outputted from the reference terminal. And, the amplifier outputs the volume controlled audio signal operated by the bias voltage supplied from the bias terminal.
Patent KR-20050009657-A (KR)
Title: Night reflection juncture for reducing the breakage of a boundary stone and reducing the collection of water in an l-shaped side portion
Inventor: KIM YOUNG JIN
IPC: E01C11/22
Filed: 2003-07-18
Abstract: PURPOSE: A night reflection juncture is provided to improve the cost and to reduce the traffic accidents by simply inserting the reflection juncture in a boundary stone. CONSTITUTION: The outer width of a night reflection juncture(3) is 0.5mm ¯ 10cm. The night reflection juncture is formed by a polyethylene plastic. A mark is displayed from the upper part of the night reflection juncture to an L-shaped side portion for pouring a ready-mixed concrete to the marked portion. The night reflection juncture is inserted between two boundary stones(1). Thereby, a road(2) and a sidewalk(4) are discriminated clearly and the life of the boundary stones is extended through reflection light at a night driving of a vehicle in the road without a street lamp.
Patent KR-20050014306-A (KR)
Inventor: BYUN CHANG WAN
IPC: B29D11/00
Filed: 2003-07-30
Abstract: PURPOSE: Equipment for manufacturing a lens frame attached by a vacuum pressure is provided to be free of environmental pollution by using vacuum, enable automation by a reduction of a manufacture process by a manual work, and capable of cost reduction by the maximization of productivity. CONSTITUTION: The equipment for manufacturing a lens frame is characterized in that: a lens frame fixture(50) and a lens frame(10) are attached to each other by forming a chamber(80) between the lens frame fixture and the lens frame by a vacuum pressure. The lens frame fixture(50) consists of a vacuum injection port(60) and a vacuum separator(70). The vacuum injection port(60) consists of a first cylinder(39), O-rings(41,42), balls(40,43), and a spring.
Patent KR-20050014346-A (KR)
Inventor: SUH HEE DONG
IPC: C02F1/48
Filed: 2003-07-30
Abstract: PURPOSE: To provide a method for producing micro-clustered carbonated mineral water from deep, rock floor water, which is able to provide the micro-clustered carbonated mineral water that has adequate mineral balance, good taste and is able to be stored for a long period of time. CONSTITUTION: The method comprises the steps of: (a) after removing suspended solids and organic materials from rock floor water through filtration and adsorption, sending it to a magnetic water treatment tank; (b) after applying constant voltage to a stainless-steel made electrode net that is packed with activated carbon and magnetite to cleave hydrogen bond of water molecules, thereby making micro-clustered water, sending the micro-clustered water to a first treated water tank; (c) after sending the treated water in the first treated water tank to a packed column packed with ceramics, magnetized magnetite, calcium, magnesium and the like, passing it through magnetic field of a solenoid magnetizer and an electromagnet to make magnetized micro-clustered water and then sending it to a carbon dioxide and oxygen dissolved tank; and (d) after microfiltering and sterilizing the treated water in the second treated water tank, packing it in a sealed bottle.
Patent KR-20050014458-A (KR)
Inventor: PARK SEUNG WON
IPC: B27N3/02
Filed: 2003-07-31
Abstract: PURPOSE: A composition of board for a packing box and a preparation method of the boards are provided to have a good water resistance and formability and to be similar to wooden boards in strength. CONSTITUTION: The boards composition for a packing box comprises 80 to 86 wt.% of sawdust; 5 to 6 wt.% of talc; 5 to 10 wt.% of starch; and 4 wt.% of water repellent. The sawdust has a particle size of 100 to 200 meshes. The preparation method of the boards comprises the steps of: drying the moisture contained in the sawdust completely by passing a microwave; mixing the sawdust, talc, starch and water repellent and stirring it; forming determined boards by pressing at a high temperature; and drying the boards naturally.
Patent KR-20050017037-A (KR)
Inventor: HUR JEAN
IPC: G03B21/18
Filed: 2003-08-11
Abstract: PURPOSE: A projector is provided to prevent over-cooling of parts by dividing cooling air sent to a place having a lower temperature and cooling air sent to a place having a higher temperature. CONSTITUTION: A projector for projecting an image includes a lamp(10), an optical system, a cooling fan(50) and an induction duct(60). The lamp(10) supplies light. The optical system includes a light synthesizing part having a blue panel, a green panel, and a red panel and an optical element arranged on an optical path. The cooling fan generates cooling air for cooling the optical system. The induction duct induces an induction duct through a first path and a second path. The projector includes a lamp driving circuit having a power circuit and a safe unit. Cooling air passing through the first path of the induction duct is induced into the blue panel. Cooling air passing through the second path of the induction duct is induced into the red panel.
Patent KR-20050018240-A (KR)
Inventor: POK GEO SEONG
IPC: A61M5/178
Filed: 2003-08-14
Abstract: PURPOSE: A safety syringe is provided to allow a syringe needle to be withdrawn into an inner space of a cylinder, to simply couple a hub with a neck portion of the cylinder without leakage, and to easily separate the hub from the neck portion after use. CONSTITUTION: The safety syringe is configured so that a hub(80) connected with a syringe needle(22) is removably engaged with a neck portion(71) of a cylinder(10), and after use, the hub is separated from the neck portion of the cylinder so as to make the syringe needle being withdrawn into an inner space of the cylinder. A flange portion(81) formed at a lower side of the hub is provided at an upper face thereof with a protrusion(82) in a circumferential direction, so that the protrusion contacts with a seat portion which is formed at the neck portion of the cylinder.
Patent KR-20050022079-A (KR)
Inventor: KIM KYUNG CHUL
IPC: A47L9/02
Filed: 2003-08-26
Abstract: PURPOSE: A suction nozzle body of a vacuum cleaner is provided to clean the narrow clearance easily by forming the recessed part in the lower part of the suction pipe and putting the suction nozzle body to the narrow space while arranging the extension pipe linearly combined with the suction pipe in parallel with the floor. CONSTITUTION: A suction nozzle body of a vacuum cleaner is composed of a lower case(110) forming the bottom, an upper case(120) arranged in the upper part of the lower case to form the upper outside, and a suction pipe(152) combined with an extension pipe and formed in the upper part of the upper case. A recessed part(152') is formed at the side of the suction pipe, and arranged in the lower part of the end of the suction pipe. The recessed part is contacted to the rear end of the upper part of the connecting member cover part of the upper case.
Patent KR-20040025819-A (KR)
Title: Railroad crossing control system
Inventor: OKAJIMA TOSHIO
IPC: B61L29/00
Filed: 2003-09-05
Abstract: PURPOSE: To obtain a railroad crossing control system which is hardly influenced by external noise and weather, and improves train detection accuracy. CONSTITUTION: The system is equipped with train detection devices 1, 6, 9 which detect an approaching train to a crossing 2 and a passing train through the crossing 2, and a crossing control device 17 controlling the crossing. The devices 1, 6 which detect the approaching train to the crossing, and the device 9 which detects the passing train through the crossing include a modulation means 231, transmission/reception means 21, 22, a demodulation means 231, and a determination means 24. The modulation means 231 generates transmission wave modulating carrier wave. The means 21, 22 emit transmission wave in the detection range from the train detection device to the detection distance, and receive the electric wave. The modulation means 231 modulates the electric wave and determines that the electric wave is the reflecting wave relative to the transmission wave. The determination means 24 determines that the train is detected in the detection range when the reflecting wave is determined to be the electric wave relative to the transmission wave, and the receiving level of the reflecting wave is above the predetermined value. The device 17 controls the crossing 2 according to the detected result from respective detection devices 1, 6, 9.
Patent KR-20050025735-A (KR)
Title: Semiconductor device and method for the same
Inventor: GA JAE WHOAN
IPC: H01L27/04
Filed: 2003-09-08
Abstract: A semiconductor device and a method of manufacturing the same are provided to improve capacitance by forming a lower electrode on a metal plug as well as in a contact hole. A semiconductor device includes a semiconductor substrate(100), an insulating pattern(104,108) with metal plugs(110) for contacting the substrate, contact holes(112) for exposing partially sidewalls of the metal plug, a lower electrode, a dielectric film(122) on the storage node electrode, and an upper electrode(124) on the dielectric film. The lower electrode(120) is formed along an inner surface of the contact hole and further formed on the metal plug.
Patent KR-20050027829-A (KR)
Title: Dual buffering memory system for reducing data transmission time and control method thereof
Inventor: KANG EUN SUK
IPC: G06F12/00
Filed: 2003-09-16
Abstract: A dual buffering memory system for improving system performance by reducing data transfer time and a controlling method thereof are provided to improve the system performance through reduction of the data transfer time between a flash memory and a host, as one buffer interacts with the flash memory and another buffer interacts with the host in parallel. At least one flash memory block(11) stores data. A flash interface(12) undertakes interface with the flash memory block. A host interface(13) undertakes the interface with the host. The first and the second buffer(14,15) temporarily store the data read from the flash memory block or applied from the host. The first control circuit(16) selects one of the first or the second buffer, and outputs the data to the selected buffer by receiving the data read from the flash memory block or receiving the input data applied from the host through the host interface. The second control circuit(17) outputs the data to the flash memory block through the flash interface or to the host through the host interface by receiving the data output from the first or the second buffer.
Patent KR-20050028690-A (KR)
Title: Apparatus for protecting misusage of traffic chip included in mobile communication terminal
Inventor: JUN SUNG HUN
IPC: H04B1/40
Filed: 2003-09-19
Abstract: A device for preventing misuse of a traffic chip provided in a mobile terminal is provided to solve a problem that a traffic chip can be forcibly activated or used by using a traffic chip control switching unit for shorting a forcible driving voltage. A traffic chip(30) is activated and operated by a driving signal inputted from outside. A mobile communication modem unit(10) receives a signal with respect to the activation of the traffic chip(30) and outputs a certain voltage. A traffic chip control switching unit(20) including a switch receives the certain voltage outputted from the mobile communication modem unit(10) and outputs a driving signal to the traffic chip(30). The switch is a transistor.
Patent KR-20040030315-A (KR)
Inventor: JACOBS HERNES
IPC: G03B27/42
Filed: 2003-09-26
Abstract: PURPOSE: A lithography projection device and a preparation method of a device are provided, to allow a balance mass suitable to vacuum to be move freely without stiffness at horizontal direction. CONSTITUTION: The lithography projection device comprises a radiation system which supplies a projected beam of radiation; a support structure which supports a patterning means patterning the projected beam according to a certain pattern; a substrate table which holds a substrate; a projection system which projects the beam patterned on the target area of a substrate; a base frame; and a balance mass which is supported on the base frame and can move to the base frame, wherein the balance mass is supported by at least one flexible supporting unit which is mechanically adhered to the balance mass and the base frame and has at least two pivot points.
Patent KR-20050030980-A (KR)
Title: Method for playing music file using ear-microphone in mobile communication terminal
Inventor: KIM YONG KYU
IPC: H04B1/40
Filed: 2003-09-27
Abstract: A music file reproducing method using an ear microphone of a mobile terminal is provided to prevent an additional cost from incurring because of designing an additional button outside a mobile terminal and an increase in the size of the mobile terminal. It is checked whether a button of an ear microphone is inputted for longer than a certain time in an initial stage(301,303). When the button is inputted for longer than the pre-set time, a music file list is displayed(305). With the music file list displayed, button inputting is sensed(307). If the button is inputted once for a short time, a currently selected music file is reproduced(309,311). When the button is inputted twice for a short time, a next music file is selected(333,335). When the button is inputted for more than the pre-set time, the music file reproduction function is terminated(339,341).
Patent KR-20050032770-A (KR)
Title: Apparatus and method for tone generating/sensing of private branch exchange system
Inventor: KIM YONG YEAN
IPC: H04M3/02
Filed: 2003-10-02
Abstract: An apparatus and a method for generating/sensing a tone of a PBX(Private Branch Exchange) are provided to enable a main control board to control signals inputted/outputted to/from local boards by switching a DSP channel of a DSP core board and requested channels of the local boards, so that the DSP core board can perform all kinds of tone generation/sensing services. Plural local boards request a tone generation/sensing function during a call processing procedure. A DSP core board(20) controls signals inputted/outputted to/from the local boards which request the tone generation/sensing function, and supplies tone generation/sensing services to the local boards. A main control board(10) perceives whether the DSP core board(20) can process the requests of the local boards, when the tone generation/sensing requests are received from the local boards, and switches channels of the DSP core board(20) and the local boards such that the DSP core board(20) can process the requested services.
Patent KR-20050037243-A (KR)
Inventor: KIM AH REUM
IPC: G02F1/133
Filed: 2003-10-17
Abstract: 본 발명의 실시예에 따른 액정 표시 장치의 오프셋 전압 및 이득 전압 설정 방법은, 먼저, 화상 신호원으로부터 출력되는 RGB 아날로그 신호를 0 그레이 전압보다 높은 임의의 그레이 전압으로 설정하여 액정 패널에 인가되도록 한다.  다음, 인가된 임의의 그레이 전압을 기준으로 A/D 변환기의 오프셋 전압을 설정한다.  다음, RGB 아날로그 신호를 최대 그레이 전압인 255 그레이 전압으로 설정하여 액정 패널에 인가되도록 한다.  이어, 액정 패널에 인가되는 255 그레이 전압의 레벨을 A/D 변환기의 이득 전압으로 설정한다.  다음, 구해진 A/D 변환기의 오프셋 전압 및 이득 전압 사이를 켈리브레이션(Calibration)하여 임의의 그레이 전압 및 최대 그레이 전압 사이의 모든 중간 그레이 전압 레벨을 설정한다. 다음, 오프셋 전압과 이득 전압을 리니어하게 연결하여 구해진 선의 연장선에서 켈리브레이션하여 0 그레이 전압을 설정하고, 나머지 1 그레이 전압부터 4 그레이 전압까지 설정한다.
Patent KR-20050038851-A (KR)
Title: 굴절붐식 고소작업차
Inventor: LEE JAE HO
IPC: B66F11/04
Filed: 2003-10-23
Abstract: 미관이 양호하면서 탑승함의 수평유지가 가능하고 비교적 회전이 자유로운 상태로 탑승함이 지지되도록, 화물차량의 섀시에 설치되는 베이스프레임의 상부에 한쪽 끝부분이 회전가능하게 설치되고 중간부가 굴절되며 다른쪽 끝부분의 길이가 신축되는 크레인 본체와, 크레인 본체의 신축되는 끝부분에 설치되는 연결대와, 연결대와 소정의 간격을 유지한 상태로 탑승함을 회전가능하게 지지하는 연장대로 이루어지고, 연결대와 연장대 사이에 설치되고 한쪽 끝부분은 연결대와 회전가능하게 결합되고 다른쪽 끝부분은 연장대의 한쪽 끝부분과 회전가능하게 결합되며 길이방향을 따라 중앙부가 관통되는 작동빔과, 작동빔의 길이방향 중간부와 한쪽 끝부분이 결합되어 길이변화에 따라 작동빔을 소정의 각도로 회전시키며 연결대에 다른쪽 끝부분이 결합되는 신축실린더와, 작동빔의 내부에 설치되고 길이방향을 따라 평행한 상태로 한쪽 끝부분은 연결대에 회전가능하게 결합되고 다른쪽 끝부분은 연장대에 회전가능하게 결합되며 신축실린더에 의하여 작동빔이 연결대를 중심으로 소정의 각도로 회전함에 따라 연장대를 항상 수평으로 유지시키는 막대형상의 수평유지대를 포함하는 고소작업용 크레인을 제공한다.
Patent KR-20050043384-A (KR)
Inventor: JEONG YONG JIN
IPC: F02B37/22
Filed: 2003-11-06
Abstract: 본 발명에 의한 엔진의 공연비 제어시스템은, 과급기가 부착된 엔진의 공연비 제어 시스템에서, 상기 과급기는,  배기가스에 의해 회전되는 터빈(112)과, 상기 터빈에 회전자로 결합되어 공기를 압송하는 컴프레셔(116)와, 상기 컴프레셔의 공기출구부에 설치되어 과급공기의 유량을 제어하는 공기유량제어밸브(118)를 포함하므로, 과급기의 내구성을 향상하고 이미 과급된 흡입공기를 제어함에 의해 공연비 제어의 정확성와 신뢰성을 확보하고 엔진의 급격한 출력저하를 방지하는 효과가 있다.
Patent KR-20050047787-A (KR)
Inventor: MUN KIY HWAN
IPC: B29C63/02
Filed: 2003-11-18
Abstract: 라벨이나 증명서 같은 프린트지에 용이하게 코팅을 형성할 수 있는 라벨 코팅 방법 및 라벨코팅시트가 개시된다. 프린트지에 코팅을 하기 위해서 프린트지 및 프린트지의 피코팅부에 대응하여 재단된 코팅지가 상호 인접하게 배치된 이형지를 제공하고, 이형지에서 코팅지가 배치된 부분을 들어 올려 이형지 및 코팅지를 부분적으로 분리하고, 코팅지에서 부분적으로 분리된 부위를 피코팅부에 부분적으로 부착한 다음, 프린트지 및 이형지를 상호 반대 방향으로 이동시켜 피코팅부에 코팅지의 나머지 부위를 부착한다. 프린트지의 피코팅부에 문자 등을 인쇄한 후 피코팅부를 바로 코팅할 수 있으며, 상기 코팅을 통해 피코팅부에 인쇄되거나 기록된 문자 등을 외부 요인들로부터 효과적으로 보호할 수가 있다.
Patent KR-20050048250-A (KR)
Inventor: LEE WON KEUN
IPC: A47J43/24
Filed: 2003-11-19
Abstract: 과일/야채 전용 세척기 및 그 운전 제어방법은 야채나 과일등의 손이 많이 가는 피세척물을 자동으로 청결하게 세척하기 위한 것이다.  본 발명은 과일, 야채 등의 피세척물을 세척용기에 넣고 가동시켜 초벌세척을 한 후, 본 세척을 하는 동안에 일정시간 경과마다 추가로 급수를 하면서 오버-플로우 홀을 통하여 부유물이 적정수준 흘러나가게 제어하도록 구성된다.  따라서, 본 발명은 세척 중 피세척물에서 떨어져 나온 이물질 중 물에 부유하는 가벼운 이물질을 물과 함께 흘러나가게 하여 배수 시 부유 되었던 이물질이 다시 피세척물에 붙는 현상을 방지할 수 있어, 야채나 과일등을 손이 덜가게 청결한 세척을 제공한다.
Patent KR-20050050840-A (KR)
Inventor: KIM KEUM NAM
IPC: H05B33/26
Filed: 2003-11-26
Abstract: 복수의 데이터선, 이 데이터선에 교차하는 복수의 스캔선, 상기 복수의 데이선과 스캔선이 교차하면서 형성하는 영역 내에 배치되는 유기 전계 발광 소자 및 이 유기 전계 발광 소자를 구동시키기 위한 픽셀 구동 소자를 포함하고, 상기 픽셀 구동 소자와 전기적으로 연결되는 상기 데이터선 또는/및 스캔선이 그 길이 방향을 따라 상기 픽셀 구동 소자와 전기적으로 연결되는 부위의 폭을 다른 부위의 폭과 상이하게 하여 형성된다.
Patent KR-20050059705-A (KR)
Inventor: RHO KWANG MYOUNG
IPC: G11C7/10
Filed: 2003-12-15
Abstract: 본 발명은 반도체 장치용 출력 드라이버로부터 출력되는 신호의 슬루 레이트 특성을 개선한 회로에 관한 것이다. 
     본 발명에 따른 반도체 장치용 출력 드라이버는 제 1 신호를 수신하여 슬루 레이트가 제어된 제 2 신호를 출력하는 제 1 프리 드라이버와, 제 3 신호를 수신하여 슬루 레이트가 제어된 제 4 신호를 출력하는 제 2 프리 드라이버와, 전원전압과 접지전압사이에 직렬로 연결되어 있는 풀업 트랜지스터와 풀다운 트랜지스터를 구비하며, 상기 풀업 트랜지스터는 상기 제 2 신호에 의하여 턴온/오프되며, 상기 풀다운 트랜지스터는 상기 제 4 신호에 의하여 턴온/오프된다.