baber/WOPTO huggingface dataset:
Patent KR-20000019579-A (KR)
Title: Separation type room air conditioner
Inventor: LEE DAE GEUN
IPC: F24F1/00
Filed: 1998-09-14
Abstract: PURPOSE: A separation type room air conditioner is for improving an appearance by changing a design as reducing moving noise by minimizing a breakage while moving air. CONSTITUTION: A separation type room air conditioner is composed of: a case(50) having an air in taking hole(53), an evaporator(51) for cooling air through a heat absorption effect by being established at the air in taking hole of the case(50), two air blowers(52a,52b) for venting cold air through an air vent hole to inside. If a user operates the air conditioner, the interior air is moved without bending by moving due to the air vent hole(54) and by the air in taking hole formed at the same height. And the two air blowers are rotated in different directions and move the air. Thus, the speed of the air becomes faster and the flow becomes straight to reduce the moving noise.
Patent KR-20000020914-A (KR)
Title: Air conditioner
Inventor: KIM JIN OK
IPC: F24F1/00
Filed: 1998-09-24
Abstract: PURPOSE: An air conditioner is provided to reduce noise as well as to improve the heat exchanging efficiency of air. CONSTITUTION: An air conditioner includes; a housing(100) having a couple of inlets(101a,101b) for introducing air and a couple of outlets(102a,102b) for exhausting air; a combustion chamber(200) made by an insulating material(210) to be communicated with heat pipes(320,325); a combustion catalyst(220) installed inside of the combustion chamber to promote the combustion of sprayed fuel; a shielding screen(250) provided near the combustion chamber to prevent air from flowing on the surface of the combustion chamber. Therefore, the air conditioner can present the desirable combustion state by preventing temperature of the combustion chamber from decreasing by the contact with air.
Patent KR-20000025955-A (KR)
Title: Combination radio and earphone-microphone and method for controlling telephone call/radio listening using earphone-microphone
Inventor: KIM SOO YEOL
IPC: H04M1/72409
Filed: 1998-10-16
Abstract: PURPOSE: A method is provided to control a telephone call or a radio listening using a combination radio and an earphone-microphone. CONSTITUTION: A combination radio and an earphone-microphone comprises an earphone-microphone, a radio module, and an interface connector for supplying power supply outputted from a cellular phone battery to the radio module. A method for controlling a telephone call/radio listening using the combination radio and the earphone-microphone comprises the steps of: generating a first mode conversion signal by the radio module responding to a mode conversion command, in a radio listening mode, and converting into a telephone call mode by starting a radio mute function; checking whether a ring is received, when a cellular phone receives the first mode conversion signal, when the cellular phone receives the first mode conversion signal in an idle mode, and converting into the telephone call mode when sensing the ring reception; the radio module generating a second mode conversion signal by responding to the mode conversion command, and converting into the radio listening mode by releasing the radio mute function; and completing the call when the cellular phone receives the second mode conversion signal, and converting into the idle mode.
Patent KR-19990046201-A (KR)
Title: 개인 휴대 무선이동통신 단말기의 통화 차단장치
Filed: 1998-10-20
Abstract: 본 발명은 개인 휴대 무선이동통신 단말기에 별도의 장치를 부착하지 않고도 효과적으로 단말기의 통화를 차단할 수 있으며, 설치가 간편하고 설치자의 의사에 따라 간단히 조작할 수 있는 개인 휴대 무선이동통신 단말기의 통화차단장치에 관한 것으로서, 구체적으로는 설치자의 조작에 따라 전파 발생 개시 명령신호를 출력하는 제어부와, 상기 제어부로부터의 명령신호에 따라 차단하고자 하는 개인 휴대 무선이동통신 단말기와 동일한 주파수 대역을 갖는 간섭신호를 발생시키는 전압 제어 발진기와, 상기 전압 제어 발진기로부터의 간섭신호를 송출하기 위한 안테나로 구성되어 있어, 안테나로부터 송출된 간섭신호가 무선이동통신 단말기의 송·수신 전파와 간섭현상을 일으켜 단말기가 자신의 통신 전파를 구별하지 못하도록 하므로써 단말기의 통화를 차단하는 것을 특징으로 하는 개인 휴대 무선이동통신 단말기의 통화 차단 장치에 관한 것이다.
Patent KR-19990037504-A (KR)
Title: 액정소자의 구동방법, 공간 광변조소자 및 그의 구동방법
IPC: G09G3/36
Filed: 1998-10-30
Abstract: 본 발명에 따라 DC 비대칭 파형 또는 이른바 단극자 파형을 갖는 전기 신호를 사용함으로써, 제1 기간, 즉, 2가지 상태중의 하나를 선택하기 위해 전기 신호를 인가하는 기간 및 제1 기간에 이은 제2 기간, 즉, 전기 신호의 인가 없이 또는 액정의 메모리 특성에 의해 두 상태중 어느쪽도 선택하지 않는 전기 신호를 인가함으로써 선택된 상태를 유지하기 위한 기간이 비트 플레인으로 제공되는 액정 구동 방법이 제공된다.  기준 레벨에 대하여 양극성 또는 음극성을 갖는 펄스 신호가 2 상태중의 하나를 선택하기 위한 전기 신호로서 본질적으로 사용되고, 이 펄스 신호와 반대 극성을 갖는 다른 펄스 신호가 다른 상태를 선택하기 위한 전기 신호로서 본질적으로 사용된다.  기준 레벨로서, 제1 전극 또는 제2 전극의 전위가 통상적으로 사용된다.  통상적으로, 펄스 신호 및 다른 펄스 신호가 각각 단일 펄스 신호로서 실질적으로 구현된다.
Patent KR-19990037543-A (KR)
Title: 냉음극 형광 램프, 냉음극 형광 램프를 구비하는 백라이트 방출장치, 및 백라이트 방출 장치를 구비하는 개인용 노트북 컴퓨터
IPC: G02F1/1335
Filed: 1998-10-30
Abstract: 내부 공간을 중앙에서 분할함으로써 정의되는 제1 및 제2 발광 영역(37a, 37b)을 가지는 투명 튜브(35), 제1 및 제2 발광 영역에 각각 배치되는 제1 및 제2 단부 전극(31, 34), 제1 및 제2 발광 영역에 배치되고 제1 및 제2 단부 전극에 각각 대향하는 제1 및 제2 중간 전극(32, 33), 제1 및 제2 단부 전극에 각각 접속되는 제1 및 제2 도입선(36a, 36b), 및 상기 제1 및 제2 중간 전극에 접속되는 도입선(36c, 36d)을 포함하는 냉음극 형광 램프(50)가 개시된다.  상기의 냉음극 형광 램프는 항복 전압 및 방전 전압을 종래의 형광 램프의 절반으로 감소시킬 수 있게 하므로, 방전된 전자들은 금속 부품들에 끌리지 않는다.
Patent KR-20000031224-A (KR)
Title: Dielectric mask for forming trench and method for manufacturing the same
Inventor: JO WOONG RAE
IPC: H01L21/027
Filed: 1998-11-04
Abstract: PURPOSE: A dielectric mask for forming a trench and a method for manufacturing the same are provided to reduce a CD variation of a pattern for forming. CONSTITUTION: A dielectric mask for forming a trench includes a pad oxide layer(110), a silicon nitride film(120) and an etching mask layer(130). The pad oxide layer is deposited with a predetermined thickness on silicon substrate and includes an exposing part corresponding to a part in which a trench(160) is to be formed. The silicon nitride film is deposited on the upper of the pad oxide layer with a predetermined thickness. The etching mask layer is deposited on the silicon nitride with a predetermined thickness and includes a multi-layer structure in which a doped film(132,136) and an undoped film(134,138) are alternately deposited n times.
Patent KR-20000032602-A (KR)
Title: Pulverizer for powdered red pepper
Inventor: PARK HOY MAN
IPC: A23N15/00
Filed: 1998-11-16
Abstract: PURPOSE: A pulverizer for the powdered red pepper is provided, to prevent the powdered red pepper from being mixed with metallic impurities, and to prevent the direct friction of a roller due to idling, thereby to reduce the noise and the overload of a motor. CONSTITUTION: The pulverizer comprises a supply hopper (4) which is constructed in the upper part of a body (A); a high speed and a low speed pulverizing roller which is geared to a motor (1) and is equipped inside of the body (A); a support frame (7) which is equipped inside of the body (A) to sliding-support the rotation axis of the low speed pulverizing roller; a pressure controller which controls the close adherence between the pulverizers by pressing or depressing the support frame (7); a separation lever which is supported by a rotation axis, wherein a cam (11) supported in the rotation axis is constructed closely to the support frame (7), and pushes the support frame (7) by the operation of a solenoid (12) when the power takes on, thereby takes off the low speed pulverizing roller from the high speed pulverizing roller; a controller which compares the consumption current value of the motor (1) with the preset current value and approves current to the solenoid (12) when idling.
Patent KR-20000032675-A (KR)
Title: Sprinkler head for fire extinguishment
Inventor: KIM YEONG KWAN
IPC: A62C35/68
Filed: 1998-11-17
Abstract: PURPOSE: A sprinkler head is to diffuse water wider in range of sprinkling for fire extinguishment. CONSTITUTION: The sprinkler head, including a known frame(1) removably fitting in a water pipe, is provided with a holder ring band(13) on the mid-part of the frame(1) to have through-holes(14) in the band to pass and hook holder projections(23) for holding a deflector(2) for support. The deflector(2) has a splash plate(21) provided with diffuser members(22) branched round it and bent upward. The splash plate(21) has a bulge in center and is fused to the frame(1) with a low temperature melt fusing alloy(3).
Patent KR-20000033027-A (KR)
Title: Method for confirming broadcast frequency in car audio
Inventor: JEONG MYONG HWAN
IPC: H04B1/06
Filed: 1998-11-19
Abstract: PURPOSE: A method for confirming a broadcast frequency in the car audio is provided to achieve the safe driving by informing a driver of broadcast frequencies or broadcast station names as voice signals when the driver selects the channel for a broadcast frequency. CONSTITUTION: An initial state(S1) that a driving power is supplied to a car audio proceeds to a function selection operation step(S2). The function selection operation step(S2) sets up a radio or a tape and proceeds to a radio receiving mode determination step(S3). The radio receiving mode determination step(S3) determines the receiving mode of a radio frequency and proceeds to a band selection determination step(S4). The band selection determination step(S4) proceeds to a relevant channel selection step(S5) if determined a band has been set up by a driver. If determined a band has not been set up by the driver, a storage frequency selection step(S6) proceeds the channel selection operation by a stored broadcast frequency. If each broadcast frequency is selected, a selection frequency read step(S7) is proceed. The selection frequency read step(S7) reads the selected frequency temporarily stored in the ROM and proceeds to a voice data read step(S8). The voice data read step(S8) proceeds to a voice information output step(S9). The voice information output step(S9) outputs voice data into voice signals and proceeds to a broadcast voice output step(S10).
Patent KR-20000033977-A (KR)
Title: Washing machine
Inventor: JUN YONG BEOM
IPC: D06F39/12
Filed: 1998-11-26
Abstract: PURPOSE: A washing tub is provided to perform a washing, a rinsing, and a dehydrating processes by inputting the washing, and to reduce the used amount of washing water and a detergent. CONSTITUTION: A washing tub(50) of a washing machine is installed to be able to be rotated inside a water tank(20). A balancer(60) is installed inside the highest part. A dehydrating slot(511) is punched in the upper end of a washing tub(50), and a guiding path of rising(512) is symmetrically formed in an inner wall. A washing and a rinsing processes are performed by supplying a water only inside the washing tub(50) inputted the washing, and a dehydrating process is performed through the guiding path of rising(512) and the dehydrating slot(511) formed in the upper end. Thereby the used amount of washing water is reduced.
Patent KR-20000034015-A (KR)
Title: Air flowmeter of car
Inventor: YU ON
IPC: G01F1/68
Filed: 1998-11-27
Abstract: PURPOSE: An air flowmeter of car is provided to measure only forward flow supplied by an air-cleaner accurately though air from an engine flows backward in a form of pulsating flow. CONSTITUTION: An air flowmeter of car includes a main body(2) which makes a passway(2a) for air, a measure tube(14) which is placed in the same direction as air flow in the passway(2a) and a measure module which is installed in the main body(2) including a detect element(17,18) which is installed in the measure tube(14) for detecting a flux and velocity of air which passes through the measure tube(14). The air flowmeter of car also includes a protect plane of inflow of backward flow for protecting inflow of backward flow perpendicularly corresponding to direction of inflow of backward flow, a backward flow block part(31) with air guide plane formed convex corresponding to the measure tube(14) so that air out flowed from an exit of the measure tube(14) flows smoothly and a support part(32) whose one end is installed being splitted in a few partition on an external surface of the backward flow block part(31) and forms a guide way guiding air out flowed from the exit of the measure tube(14) and whose the other end is fixed in the exit of the measure tube(14) and supports the backward flow block part(31).
Patent KR-19990045639-A (KR)
Title: 구동회로의 변동을 억제할 수 있는 발광반도체소자
IPC: H01S5/00
Filed: 1998-11-27
Abstract: 개시된 발광반도체소자는, 클래딩층 또는 중간층 내로 부가된 제 1의 부가층을 포함한다.  이 제 1의 부가층은 반도체기판의 격자상수와 다른 격자상수를 가진다.  상기 발광반도체소자는 히트싱크에 부착해서 레이저디바이스를 형성한다.  이 히트싱크는 발광반도체소자에 변형을 가한다.  여기에서 제 1의 부가층이 응력을 발생하고 상기 변형의 영향을 억제한다.
Patent KR-20000034243-A (KR)
Title: Apparatus for preventing white saturation for pdp television
Inventor: JO MIN SU
IPC: H04N5/66
Filed: 1998-11-28
Abstract: PURPOSE: An apparatus for preventing white saturation for PDP(Plasma Display Panel) television is provided to suppress the white saturation by detecting the white peak and decreasing the gain of color signals. CONSTITUTION: An apparatus for preventing white saturation for PDP(Plasma Display Panel) television includes a color signal decoder(200), a pre-amplifier(201), an A/D converter(202), a data processor(203), a memory block(206), a data actuator(204), a peak detector(207), a planarizer(208), and a controller(205). The color signal decoder(200) outputs R(Red),G(Green),B(Blue). color signals. The pre-amplifier(201) decreases the gain of the R,G,B signals according to a gain decrease control signal. The A/D(Analog/Digital) converter(202) converts the R,G,B color signals into digital signals. The data processor(203) reallocates and resize the digital signals. The memory block(206) stores the data output of the data processor(203). The data actuator(204) actuates a data driver to display the digital signal. The peak detector(207) detects the white peak and outputs the result. The planarizer(208) planarize the digital signal according to the white peak detect signal. The controller(205) outputs the gain decrease control signal according to a peak criterion level from the peak detector(207).
Patent KR-20000039396-A (KR)
Title: Method for encoding moving pictures to facilitate reverse direction playback
Inventor: JANG SOON HWA
IPC: H04N5/93
Filed: 1998-12-12
Abstract: PURPOSE: A method for encoding moving pictures to facilitate reverse direction playback is provided to estimate the motion of the pictures effectively with less calculation. CONSTITUTION: A method for encoding moving pictures to facilitate reverse direction playback includes first thru forth steps. At the first step, a first intra image is forward encoded. At the second step, the current image is forward encoded with using a next encoded image as a previous image. At the third step, an encoded image of an interframe mode for a reverse direction playback is generated at every forward encoding intervals. The the forth step, a moving picture is reverse direction played using an encoded image of an intramode of the encoding image from the third step and the stored image from the second step.
Patent KR-20000040252-A (KR)
Title: Decider for precise insert position of injection metal mold
Inventor: SONG JONG GYU
IPC: B29C45/26
Filed: 1998-12-17
Abstract: PURPOSE: A decider for a precise insert position is provided to prevent molding goods from being inferior caused by mis-inserting and shaking an insert by supporting the insert itself. CONSTITUTION: A metal mold is divided into an upper cavity and a lower core(2) on a dividing line as a standard. A position fixing pin(6) is installed to be penetrated through the core and connected to an insert(4). A floating joint(7) and a cylinder(8) are integrally installed. The floating joint holds the cylinder to deliver force of cylinder load in a regular direction. A spring(10) inserted into the middle of the position fixing pin applies elastic rebound force to the position fixing pin. A length adjusting pin(11) controls the advance length of the cylinder in multistage.
Patent KR-20000040264-A (KR)
Title: Apparatus and method for processing software in wireless atm base station
Inventor: KIM DONG WAN
IPC: H04L12/28
Filed: 1998-12-17
Abstract: PURPOSE: An apparatus and a method for processing a software in a wireless ATM base station are provided to guarantee a quality of service within a maximum transmission delay. CONSTITUTION: An apparatus for processing a software in wireless ATM base station comprises a wireless connection control portion(4-1), a wireless resource/movement management portion(4-2), a control message processing portion(4-3), an ATM cell distribution portion(4-4), and a wireless data link control portion(4-5). The wireless connection control portion is connected to an ATM layer. The wireless resource/movement management portion is connected to the wireless connection control portion. The control message processing portion provides a message transmission protocol. The ATM cell distribution portion converts cells of an ATM layer to wireless ATM cells. The wireless data link control portion generates the wireless ATM cells as a DLC frame.
Patent KR-20000042192-A (KR)
Title: Method for producing high temperature annealed cold-rolling steel plate by using mini-mill process
Inventor: KANG HUI JAE
IPC: B21B3/00
Filed: 1998-12-24
Abstract: PURPOSE: A method for producing a high temperature annealed cold-rolling steel plate is provided to increase the kind of mini-mill steel by giving a proper element class and producing condition to a mini-mill process. CONSTITUTION: Molten steel is made up of less than 0.04wt % of C, 0.2 to 0.4wt % of Mn, less than 0.015wt % of S, 0.025 to 0.05wt % of Al, less than 0.1wt % of N, more than 2.0 of 0.52xAl/N, less than 0.18wt % of tramp elements(Cu, Ni, Cr, Mo, Sn, Sb), less than 0.05wt % of Sn and less than 0.05wt % of Sb among the tramp elements. Herein, the molten steel is continuously cast into a thin slab of less than 90mm thickness. A mini-mill hot-rolling steel plate is produced by hot-rolling the thin slab in an austenite single phase band, and the mini-mill hot-rolling steel late is cold-rolled. Then, the cold-rolled steel plate is high-temperature annealed.
Patent KR-20000042692-A (KR)
Title: Method for predicting illegal usage of mobile phone through personal speech pattern analyses
Inventor: KIM IN JEONG
IPC: H04B7/26
Filed: 1998-12-26
Abstract: PURPOSE: A method for predicting illegal usage of a mobile phone is provided to predict the frauds by comparing speech patterns with action patterns of similar-patterned subscribers who are set up as one group, after learning the speech patterns according to the subscribers every month in a frauds retrieving/managing system, and by selecting subscribers seceding from the group as delinquent subscribers to examine various frauds types of the delinquent subscribers. CONSTITUTION: A method for predicting illegal usage of a mobile phone, comprises the steps of: generating each speech pattern for mobile phone subscribers; learning the speech patterns to group subscribers having similar patterns; comparing action patterns with speech patterns of the grouped subscribers, and selecting subscribers seceding from the group as potential delinquent subscribers; and retrieving frauds of the delinquent subscribers according to the patterns, and predicting the mobile phone frauds.
Patent KR-20000042719-A (KR)
Title: Method for optimally receiving same program in radio data system broadcasting
Inventor: YANG MYEONG WOO
IPC: H04B1/10
Filed: 1998-12-26
Abstract: PURPOSE: A method for optimally receiving a same program in radio data system(RDS) broadcasting is provided to set up a signal meter(SM) reference voltage for deciding a strong electric field level or a weak electric field level of a broadcasting signal, according to broadcasting signal strength of each nation when a car audio is initially driven. CONSTITUTION: A method for optimally receiving a same program in radio data system(RDS) broadcasting comprises the steps of: receiving a password including a nation code to cancel a lock mode of a car audio; deciding a corresponding nation on the basis of the password; setting up a signal meter(SM) reference voltage for deciding strong/weak levels of a receiving electric field signal of a radio frequency(RF) signal, on the basis of the corresponding nation; receiving a first RF signal including a RDS signal to convert the first RF signal into a preset intermediate frequency(IF) signal, and outputting radio broadcasting; comparing a receiving electric field strength level of the first RF signal with the SM reference voltage; if the receiving electric field strength level is smaller than the SM reference voltage, retrieving a frequency capable of being replaced, among frequencies of a broadcasting station delivering the same program and the stored first RF signal; and if the receiving electric field strength level is over the SM reference voltage, converting the electric field strength level into a second RF channel, and outputting the radio broadcasting.
Patent KR-20000043992-A (KR)
Title: Mold die structure for semiconductor package manufacturing process
Inventor: KIM DONG JUNG
IPC: H01L23/28
Filed: 1998-12-29
Abstract: PURPOSE: A mold die structure used for fabricating a semiconductor package is provided to minimize molding errors and improve the air vent function by improving the structure of a cull block to have resistance members thereby allowing molding compounds to turbulently flow in a cull block and allowing air to be smashed. CONSTITUTION: Cull areas(3) in which molding compounds remain after a molding process are provided in a cull block(1). A sub-runner(4) through which molding compounds flow and a bridge(5) for connecting adjacent cull areas(3) are provided in the cull block(1). Resistance members(2) is provided for transforming the flow of molding compounds in the cull area(3) of the cull block(1) to the turbulent flow, so the air contained in the molding compounds is smashed and vented.
Patent KR-20000044197-A (KR)
Title: Manufacturing method for thin film micromirror array-actuated device
Inventor: HWANG GYU HO
IPC: G02F1/015
Filed: 1998-12-30
Abstract: PURPOSE: A manufacturing method of a TMA device is provided to increase the driving angle of the actuator and to prevent bending phenomena of the actuator by disallowing the first and second electrodisplacive being formed on the connection part of the lower electrode. CONSTITUTION: A device comprises an active matrix(100), a substrate(101), a transistor(120), a first metal layer(135), a first protection layer(140), a second metal layer(145), a second protection layer(150), an etching preventing layer(155), a first sacrificial layer(160), a supporting layer(170), a first anchor(171), and a supporting line(174). A manufacturing method comprises the steps of: providing the active matrix including the first metal layer which has the drain pad extended from the drain of the transistor; forming a first layer, a second layer, a lower electrode layer and upper electrode layer on the upper part of the active matrix; forming the actuator including the first and second upper electrode, first and second electrodisplacives and the lower electrode by patterning the lower part electrode layer, the second layer and the upper part electrode layer sequentially; and forming a mirror on the upper part of the actuator.
Patent KR-19990028906-A (KR)
Title: 서방 속도로 치료용 화합물을 경막외에 투여하는 방법
IPC: A61K9/127
Filed: 1996-07-12
Abstract: 약물 전달 시스템은 경막외 투여되는 치료용 생물학적 활성 화합물을 서방성으로 전달한다.  바람직한 실시태양에서, 상기 생물학적 활성 화합물은 아편양제제이며, 이것은 다중 소포 리포좀의 비-동심원의 내부 수성 챔버 또는 이층내에서 캡슐화된다.  아편양제제는 무통증을 지속시키기 위한 단일투여량으로 리포좀이 경막외에 도입되는 경우 연장된 시간동안 방출된다.
Patent KR-19990072145-A (KR)
Title: 댐핑임피던스가보상된편향회로
IPC: H04N3/233
Filed: 1997-09-08
Abstract: 편향 회로는 편향 코일(Lf)을 거쳐서 흐르는 편향 전류(If)를 발생한다.   편향 회로는 편향 코일(Lf)과 직렬로 마련된 직렬 저항(Rs)과, 편향 코일(Lf)과 직렬 저항(Rs)의 직렬 구조에 결합된 출력을 갖는 구동 회로(1, 5)를 포함한다.   구동 회로(1, 5)는 직렬 저항(Rs)에 결합되어 귀환 전압(Vs)을 수신하는 입력을 갖는다.   구동 회로(1, 5)는 또한 변환 저항(Rc)에 결합되어 입력 파형(Vi)을 수신한다.   구동 회로(1, 5)는 귀환 루프 내에 마련되어 입력 파형(Vi)을 닮은 형상의 편향 전류(If)를 얻는다.  편향 회로는 또한, 편향 코일(Lf)과 병렬로 마련된 댐핑 임피던스(Rd)와, 플라이백 주기(Tf) 내에서 보정 전류(Ic)를 발생하는 전류 발생 회로(3)를 포함한다.   전류 발생 회로(3)는 변환 저항(Rc) 및/또는 직렬 저항(Rs)에 결합되고, 플라이백 주기(Tf)의 적어도 마지막 부분 동안에 활성화된다.   이와 같은 방식으로 하여, 보정 전류(Ic)는 외부의 구성 요소와 용이하게 적응할수 있어, 집적 회로의 허용 오차를 극복할 수 있다.