baber/WOPTO huggingface dataset:
Patent KR-20000064833-A (KR)
Title: 디지탈 화상 보전 방법, 화상 처리 장치 및 데이터 기록 매체
IPC: G06T9/00
Filed: 1998-01-27
Abstract: 본 발명에 관한 디지탈 화상 보전 방법은, 도 2에 도시하는 바와 같이 입력되는 디지탈 화상 신호에 대응하는 원화상 공간(301)에 있어서의 화소를 수평 방향으로 1 화소 간격으로 또한 수직 방향으로 1 화소행 간격으로 추출한 후, 해당 추출한 복수의 화소를 재배열하여 4개의 소화상 공간(401∼404)을 형성하고, 이들 소화상 공간에 대하여 화소값의 보전 처리를 실시하도록 한 것이다. 
     이러한 구성의 디지탈 화상 보전 방법에서는, 화소값의 보전 처리가, 인접하는 주사선 사이에서의 화소값 상관이 낮은 원화상 공간이 아니라, 인접하는 주사선 사이에서의 화소값 상관이 높은 복수의 소화상 공간에 대하여 실시되게 된다.  즉, 보전 처리가 실시된 소화상 공간은, 상기 화소값 상관이 높은 것으로 되어 있다.  이 때문에, 예를 들어, 물체의 움직임이 큰 비월 화상에 보전 처리에 의해, 해당 비월 화상에 대응하는 디지탈 화상 신호에 고주파 성분이 도입되는 것을 막을 수 있으며, 나아가서는, 비월 화상 등에 대한 차분 부호화 처리 혹은 차분 복호화 처리를, 보전 처리에 기인하는 부호화 효율의 저하를 억제하면서, 높은 부호화 효율로 실행할 수 있는 효과가 있다.
Patent KR-20000015996-A (KR)
Title: Chemically-mechanically planarization method of stop-on-feature semiconductor wafer
Inventor: ROBINSON CARL M
IPC: B24B37/015
Filed: 1997-05-21
Abstract: PURPOSE: A chemically-mechanically planarization method of a stop-on-feature semiconductor wafer is provided to selectively eliminate an upper layer from a stop-on-feature layer. CONSTITUTION: A chemically-mechanically planarization method of a stop-on-feature semiconductor wafer includes the steps of:positioning a wafer(30) against an aqueous solution layer on the flat surface of a polishing pad(100); moving at least one pad or wafer at a relatively low speed to the rest to practically provide a continuous aqueous solution film between the wafer and the polishing pad; and controlling the temperature of a platen where the pad is placed from 85-105 °F to reinforce the polishing pad as well as to keep the temperature of the desired aqueous solution.
Patent KR-20000016249-A (KR)
Title: Garment for use with a disposable absorbent article
Inventor: WILLMS ERIC JOACHIM
IPC: A41B9/00
Filed: 1997-05-23
Abstract: PURPOSE: A garment is provided to totally touch the body and excellently wear an absorbent article when the absorbent article is moist or dry without relation to moving or stopping. CONSTITUTION: A garment (10) for holding a disposable absorbent article (21) comprises a front section (11); a rear section (12); a crotch section (13) disposed between the front section (11) and the rear section (12); and a pair of elasticised pressure zones (15) to create at least one pocket (16) in the front section (12). The pocket (16) is located inboard of the elasticised leg openings (14) and elasticised pressure zones(15) is adjacent to at least one portion of the elasticised leg openings.(14).
Patent KR-20000022157-A (KR)
Title: Heating device, regenerative teat generating body and protective sheet forsam
Inventor: SABURI TOSHIO
IPC: E04D13/10
Filed: 1997-06-25
Abstract: PURPOSE: A device is provided for a heating device used for snow melting on roads, roofs and the like and heating in buildings and facilities, and is provided to uniformly heat an object being heated over an entire area of the object and enable effective use of a PTC heater. CONSTITUTION: The heating device comprises a heat diffusion plate provided on an upper surface of a heat insulating material for diffusing heat generated from a heat generating body, the heat generating body being provided in a recess provided in an upper surface of the heat diffusion plate. The heat generating body comprises a heat generating element provided with a heat radiation plate and inserted into a container, which is charged with a regenerator of latent heat absorption type, in a manner to be in contact with the regenerator. Also, in order to protect a heating device, a protective sheet comprising a base material impregnated with petroleum asphalt, which is mixed with a far infrared radiation material, is laid in a manner to cover a heat source unit to integrally fix the heat source unit between a surface course and a binder course.
Patent KR-20000051338-A (KR)
Inventor: LEE SUK JO
IPC: F04B27/08
Filed: 1999-01-21
Abstract: PURPOSE: A method for manufacturing a swash plate of an air conditioner compressor for a vehicle by high pressure casting is provided to reduce a coefficient of friction between the swash plate and a plunger or a piston, thereby removing noise of the compressor and increasing an efficiency of an engine. CONSTITUTION: A method for manufacturing a swash plate of an air conditioner compressor for a vehicle by high pressure casting includes the steps of producing a mold by melting and casting an aluminium alloy, coating a polytetrafluoroethylene with a predetermined thickness on the mold for minimizing a coefficient of friction, drying the coating layer at a temperature of 340-380°C for 2-3 hours, and performing a surface finishing process, wherein the aluminium alloy is to be ADC12 and the thickness of the polytetrafluoroethylene coating layer is 10-30micrometer.
Patent KR-19990068106-A (KR)
Title: 광송수신 모듈용 금속용기의 개량 구조 및 그의 제조방법
IPC: H05K1/00
Filed: 1999-01-25
Abstract: 본 발명은 일반적인 기계가공 방법으로 제조가 어려운 패키징 구조를 정밀성형이 가능하면서 실형상화를 달성할 수 있는 분말사출성형과 소결기술을 적용하여 달성하기 위한 것으로, 광송수신 모듈 패키징용 금속용기에 있어서, 상기 금속용기 내부 밑면에 개별 소자들이 올려져 회로를 구성하는 인쇄 회로 기판을 안정적으로 지지할 수 있도록, 별도의 걸림턱을 갖는 네일(†) 모양의 핀을 금속용기 밑에 정렬된 통공에 삽입하거나, 상기 금속용기내에 별도의 지지대를 포함하고, 핀이 일렬로 위치하는 상기 금속용기의 내부 밑면의 영역 및 상기 핀 열 사이의 중심부 영역 사이에 높이차를 제공함으로써, 상기 밑면의 통공을 통하여 제공되는 핀과 소켓 사이의 절연성이 향상되는 광송수신 모듈 패키징용 금속용기 및 외부소켓과 핀의 결합시 패키징 용기의 밑면과 소켓 사이의 절연성을 향상시키기 위해 상기 금속용기 밑면에 절연테이프를 접착시키는 구조를 갖는 광송수신용 모듈 패키징용 금속용기와, ASTM F-15 합금 조성의 철, 니켈 및 코발트 분말을 균일하게 혼합한 후, 이를 고분자 결합제와 다시 혼합하여 사출용 피드스톡을 제조하고, 상기 피드스톡을 금형 내로 고압 사출 성형하고, 얻어진 성형체로부터 용매추출 및 열분해법을 사용하여 상기 고분자 결합제를 제거하고, 얻어진 성형체를 소결하는 것으로 이루어지는 광송수신 모듈 패키징용 금속용기의 제조방법을 제공한다.
Patent KR-19990045933-A (KR)
Title: 강판용열전사기
IPC: B41F16/00
Filed: 1999-02-20
Abstract: 본 발명은 가온, 가압방식으로 스테인레스 강판에 전사를 하기 위한 열전사기에 관한 것으로, 특히 롤러를 가열부재로 사용하지 않고 열전도판과 가압커버를 구비하여 전사면 전체에 대하여 단번에 전사할 수 있도록 한 열전사기에 관한 것이다. 
     본 발명은 상면에 열전도판(20)을 구비하여 피전사물인 강판(1)을 올려놓기 위한 작업대(10)와, 상기 열전도판(20)의 하부에 설치하여 상기 열전도판(20)을 가열하기 위한 히터(30)와, 상기 열전도판(20)에 대응하여 상기 열전도판(20)의 후단에 힌지(41)로 연결하여 상기 강판(1)을 가압하기 위한 가압커버(40)와, 상기 작업대(10)의 전면 상측과 상기 가압커버(40)의 선단에 설치하여 상기 가압커버(40)을 상기 작업대(10)의 상면에 올려 진 강판(1)에 대하여 전사지(3)를 덮어 누를 수 있도록 한 다수의 클램프(50)로 구성된 것에 그 특징이 있다.
Patent KR-20000061255-A (KR)
Inventor: PARK HAE YUN
IPC: C04B18/14
Filed: 1999-03-25
Abstract: PURPOSE: An expansible hardener for the stability of soil is provided to reduce the manufacturing cost by reducing the mixing ratio of gypsum or Portland cement and adding a large quantity of blast furnace-slag. CONSTITUTION: An expansible hardener for stability of soil comprises 45-60 wt% of blast furnace-slag, 10-30 wt% of gypsum, 1-5 wt% of aluminate, and Portland cement. The blast furnace-slag comprises SiO2, Al2O and CaO. And in the process of hardening, ettringite such as 3CaO, Al2O3, 3CaSO4, 32H2O is created, so that the expansibility can be improved.
Patent KR-20000073802-A (KR)
Inventor: KIM TAEK SEUNG
IPC: G11C29/00
Filed: 1999-05-14
Abstract: PURPOSE: A function changeover tester for memory address pin is provided to improve the test efficiency of operation, so that successive column address counting is enabled. CONSTITUTION: A function changeover tester for memory address pin contains address pin changeover part(100) which changes address pin by the decided address code(TMAa). The address pin changeover part(100) comprises an auto free charge flag generator(101), auto free charge controller(102), Y-address controller(103), and Y-address generator(104). The Auto free charge generator operates auto free charge flag signal(TMAP) by decided address code enabled by test mode command signal. TMAP signal gets latched signal(PA10) by address latch(14), and outputs auto free charge control signal. Address latched signals(AL10,AL11) adds the TMAP signal, then it is come out Y-address control signal by the Y address controller, and this makes Y address generator output Y-address.
Patent KR-20000074161-A (KR)
Inventor: NA JONG JOO
IPC: C09B62/51
Filed: 1999-05-18
Abstract: PURPOSE: A monoazo acidic orange dye having the same effect on color and fastness as conventional dyes while being benign to the human body and having high solubility, process for the preparation thereof and composition containing the same are provided which can be used for nylon carpets or the like. CONSTITUTION: A monoazo acidic orange dye compound of formula 1 is prepared as following steps, which comprise the steps of a) melting aminodiphenyl amine of formula 5 in water, adding sodium nitrite and sulfuric acid at 0 to 30°C; b) coupling by removing excess nitrous acid, adding a phenylpyrazolone compound of formula 6 and neutralizing the mixture to pH 5 to 8; salting out and drying. In formula, R1 and R2 are the same or different H, nitro or sulfonic acid, R3 is H, hydroxyl or carboxyl, R4 to R8 are the same or different H, Cl, methyl, sulfonic acid or carboxyl.
Patent KR-19990088676-A (KR)
IPC: G01R31/01
Filed: 1999-05-29
Abstract: 본 발명은 IC 칩이 수용되는 다수의 IC 수용부(14)를 가지는 전자부품용 트레이(110)이고, IC 수용부(14)의 개구부를 개폐하는 셔터(15)를가진다. 셔터(15)는 IC 시험장치에 설치된 유체압 실린더 등에 의해 개폐된다. 또한 트레이 수직 반송장치(350)는 IC 칩이 수용되어 있는 트레이(110)를 대략 수직방향으로 반송하기 때문에, 적재된 트레이(110) 내의 최하단에 위치하는 최하단 트레이(110)의 단부를 탈착 자유롭게 지지하는 것이 가능한 트레이 단부 지지부재(310)와, 최하단 트레이(110)를 하방 또는 상방으로 반송하는 트레이 승강부재(314)와, 상기 최하단 트레이(110)가 트레이 승강부재(314)에 의해 지지 가능한 상태로 된 경우에, 최하단 트레이의 지지를 해제하고, 다음에 최하단 위치에 오는 별도의 트레이(110)의 단부를 지지하도록 트레이 단부 지지부재(310)를 구동하는 액츄에이터 부재(312)를 가진다. 트레이 승강부재(314)가 하강 이동하여 최하단 트레이(110)를 주고 받으며, 대략 수평방향으로 이동 가능한 트레이 수평 캐리어(320)를 더 구비시켜도 된다. 트레이 수평 캐리어(320)는 구동 와이어(330)에 의해 이동한다.
Patent KR-20000005904-A (KR)
Inventor: ANSSESS UBE
IPC: G02B1/10
Filed: 1999-06-04
Abstract: PURPOSE: A composition to manufacture the water-repellent film is provided to apply to all kinds of substrate by having good electric conductivity and high evaporation temperature. CONSTITUTION: A composition for optical substrate comprises the steps of: mixing an electrically conductive or semi-conductive supporting material with a bonding agent, and putting the mixture into a compressive mold; forming a porous mold by calcining the compressive mold at 1100-1500°C in atmosphere; impregnating the mold using the organic silicon compound; aging the impregnated mold by storing the mold in the atmosphere for more than 3 days.
Patent KR-20000006178-A (KR)
Inventor: IKEDA YASUO
IPC: A61L15/58
Filed: 1999-06-15
Abstract: PURPOSE: The adhesion paste is provided which has an excellent adhesion ability for skin. CONSTITUTION: The sticking composition comprises 0.05- 10 weight % of a copolymer of aminoalkyl(metha)acrylate and alkyl(metha)acrylate. Thus, (A) polyoxyethylene(9)lauryl ether and propylene glycol are mixed, and solved dichlorophenac natrium, EUDRAGIT RL PO and L-menthol. (B) Kaolin and sodium edetate are dispersed in a mixed solution of pure water and D-sorbitol solution(70 %). (C) Sodium polyacrylate, sodium carboxymethylcellulose and dried potassium alumium sulfate are dispersed. The solution A and B, C are stirred, followed by addition of tartaric acid to give the aqueous adhesion paste.
Patent KR-20000011310-A (KR)
Inventor: BASSER BAUR BRIGITAR
IPC: C23G1/08
Filed: 1999-06-16
Abstract: PURPOSE: A stainless steel washing method is provided to wash a stainless steel with an acid at a temperature above 40°C and reduce the required time for acid washing of the stainless steel by addition of an antioxidant. CONSTITUTION: The washing method comprises treating a stainless steel with an aqueous solution of hydrochloric acid at a temperature above 40°C. The stainless steel is treated with the aqueous solution of hydrochloric acid at a temperature lower than the boiling point of azotropic hydrochloric acid. An antioxidant is added to the aqueous solution of hydrochloric acid. The antioxidant is at least one selected from the group consisting of nitric acid, chlorine, hydrogen peroxide, hydrogen chloride compound, other acids containing chlorine, chrome oxide such as CrO3 and ferrous chloride.
Patent KR-20000006450-A (KR)
Inventor: NAKAZIMARYUZI
IPC: H01L21/3205
Filed: 1999-06-25
Abstract: PURPOSE: A manufacturing method of semiconductor device able effective performance of hydrogen passivation is provided to suppress the growth of aluminum within a metal wiring layer therefore prevent short-cut. CONSTITUTION: The manufacturing method of semiconductor device able effective performance of hydrogen passivation comprises: a step forming the first insulation layer(13) on a semiconductor substrate(11); a step forming a gate electrode(14) on the first insulation layer; a step forming the second insulation layer(22) on the gate electrode; a step performing hydrogen passivation on the interface between the semiconductor substrate and the first insulation layer under the first temperature after the second insulation layer is formed; a step metal wiring layers(31,41) on the second insulation layer; and a step heating the metal wiring layers under the second temperature lower than the first temperature.
Patent KR-20000006474-A (KR)
Title: Polishing apparatus
Inventor: HATANOKAZTOMO
IPC: B24B37/005
Filed: 1999-06-25
Abstract: PURPOSE: Polishing equipment is provided to maintain pressing pressure constantly and to control pushing pressure. CONSTITUTION: The polishing equipment comprises: mount plate fixed a polished object, mount head placed over the mount plate, and hollow structure placed between the mount plate and the mount head which is formed flatted plane. Since the depth of the hollow structure is changed, the pressure the hollow structure press mount plate is uniform. As a result, a wafer is polished uniformly without irregularity.
Patent KR-20010004085-A (KR)
Inventor: CHOI SIN
IPC: H01L23/48
Filed: 1999-06-28
Abstract: PURPOSE: An external terminal structure in semiconductor packages is provided to be capable of minimizing transfer of the stress by the difference of the thermal expansion coefficient between a printed circuit board and a package when the package is mounted on the printed circuit board, to a solder ball. CONSTITUTION: An elastomer(12) is coated on an upper face of the chip so that the pad of the semiconductor chip(11) is exposed and functions to mitigate the shock from the outside. A metal pattern(14) is coated to be connected to an upper face of the elastomer and the pad of the chip. A solder mask (16) is coated on the upper face of the elastomer and the metal pad. A solder ball(19) is installed to be connected to the solder ball and also constitutes an external connecting terminal. The structure further include a gold wire(17) for mitigating the stress by the difference of the thermal expansion coefficient with the printed circuit board within the solder ball.
Patent KR-20010004577-A (KR)
Inventor: YOO JONG HAK
IPC: G11C11/406
Filed: 1999-06-29
Abstract: PURPOSE: A back bias voltage level detector is provided to control the back bias voltage level to be within a fixed range regardless of the variation of a power source voltage using a constant current source. CONSTITUTION: A back bias voltage level detector comprises: a constant current source unit supplying a constant current regardless of the variation of the first power source voltage source to the first node(Nd1); a negative voltage detecting unit switching a voltage signal of the first node to the second power source voltage source according to the level of a negative voltage signal; and a buffering unit buffering the voltage signal for the first node. The constant current source unit comprises a MOS transistor connected between the first power source voltage source and the first node, and an operation control part generating a signal controlling the operation of the MOS transistor in order for a threshold voltage to be transferred through the MOS transistor.
Patent KR-20010004693-A (KR)
Inventor: YUM TAE JU
IPC: E04C1/00
Filed: 1999-06-29
Abstract: PURPOSE: A cement block is provided to intercept the flow of hot and cold air effectively, to promote the soundproof and waterproof effect and to reduce personnel expenses according to the construction of buildings and construction expenditure itself steeply as well as the building load. CONSTITUTION: On molding a cement block (1) of a rectangular parallelepiped forming a penetrating section (11) of an arc/semi-arc shape on several spots from top to bottom and right/left side at regular intervals, an injection-molded insulating board material (2) to have a fixed thickness vertically from the middle of a cement block (1), the upper end of an insulating board material (2) is laid to be projected as compared with the top of a cement block (1), the both ends are laid to be projected toward a penetrating section (11) of a semi-arc shape formed on the both ends of a cement block (1), several hollow sections (21) are formed vertically inside an insulating board material (2) at regular intervals, several surged hangers (22) are laid in a partition wall (12) formed between a penetrating section (11) of a cement block (1) and projected on the front/rear surface, a bonding projection (23) and a bonding groove (24) are formed on the center line of the upper face and the side face or the lower face and the other side face respectively, the side face of an insulating board material (2) is formed to be projected to the outside as compared with the side face of a cement block (1).
Patent KR-20000011467-A (KR)
Inventor: MATSUI YOSHINORI
IPC: H01L21/822
Filed: 1999-07-03
Abstract: PURPOSE: A semiconductor device is provided to be able to control a bonding band to have a specific capacity without needing large area, increasing the manufacturing process and elongating the delay time of the input signal. CONSTITUTION: The semiconductor device is composed of: an input/output unit for inputting and outputting the signal; an inner circuit unit for receiving the inputted signal to the input/output unit or outputting the signal through the input/output unit; a first protection resistance provided on the signal transmission line between the input/output unit and the inner circuit unit to protect the inner circuit unit; a capacity unit including the capacity connected to the input/output unit, and having plural insulating gate field effect transistors or plural MOS capacity devices; a second protection resistance connected between the input/output unit and the capacity unit to protect the capacity unit; and the capacity unit and the second protection resistance are provided on an additional conducting wire from the signal transmission line.
Patent KR-20010009199-A (KR)
Inventor: YANG YI SUK
IPC: B42D5/04
Filed: 1999-07-08
Abstract: PURPOSE: Provided is a multipurpose table calendar, which places advertisement for regional advertisement in calender by using visual repeating effect and adds various convenient functions of daily life. So it makes maximize advertising effect. CONSTITUTION: The table calendar is characterized by inserting each inside paper(1) of advertisement and inside paper of memo pad independently, which has spring file(2) for turning over each monthly calender pad and holds up by board(3) that is triangle shape when it is unfolded.
Patent KR-20010009659-A (KR)
Inventor: SEO WON YOUNG
IPC: A61L15/16
Filed: 1999-07-13
Abstract: PURPOSE: A hygienic band for women is provided, which enhances cleanliness when using, and effectively eliminates odor of menstrual blood by inhibiting rottenness of the menstrual blood, so improves uneasiness during women's menstrual period. CONSTITUTION: The hygienic band for women comprises: a surface sheet(10) through which menstrual blood is passed; a water-proof sheet(20) preventing leakage of menstrual blood to the outside; a core(30) absorbing menstrual blood within the surface sheet(10) and the water-proof sheet(20) directly; and adequate quantity of charcoal powder(40) in the core(30)(the charcoal powder has to mixed evenly with a pulp fiber or an absorbing polymer of the core). The charcoal makes the primary deodorizing action to eliminate native odor of the menstrual blood during adsorbing and filtering process through minute ventilation holes, and (-)ion and antibiotic action of which inhibits or kills putrefying bacteria of the menstrual blood, so blocks the secondary odor-production by inhibition of the odor by rottenness of the menstrual blood.
Patent KR-20000011791-A (KR)
Inventor: TAKAJAWA MASAYUKI
IPC: H04N5/232
Filed: 1999-07-16
Abstract: PURPOSE: An imaging system is provided to process image data of a variable resolution effectively without lowering a processing performance of each circuit. CONSTITUTION: In the imaging system, a memory controller(22) time-division transmits an admission signal to each circuit in a bandwidth limit range of an image data bus(33) capable of being supplied to each circuit, and manages a control of each circuit so as for each circuit to perform a previously set process. The memory controller(22) accesses data in each circuit in real time so as to make the image data being recorded to an image memory(32) for storing image data from each circuit, or so as to make the image data being transferred to each circuit.
Patent KR-20010011978-A (KR)
Inventor: CHO HYEON DEOK
IPC: H04N7/18
Filed: 1999-07-31
Abstract: PURPOSE: A method for re-transmitting video data is provided to divide re-transmitted video data for transmission, and to regulate the size of the video data, so as to prevent the deterioration of use efficiency of channel bandwidth and enhance the efficiency of video transmission. CONSTITUTION: If an adaptation layer-3(AL3) transmission entity(400) transmits a sequence number(V(S)) of I-PDU(Protocol Data Unit) to be included in the I-PDU(S10), an AL3 receiving entity(401) checks whether a presently transmitted serial number(N(S)) of I-PDU is equal to a sequence number(V(R)) of I-PDU to be received. If equal, the AL3 receiving entity(401) normally performs an operation to receive a next I-PDU. If the transmitted N(S) of I-PDU is not equal to the V(R) of the AL3 receiving entity(401), the AL3 receiving entity(401) delivers a re-transmission request message to the AL3 transmission entity(400)(S20). The AL3 transmission entity(400) checks whether the I-PDU of a corresponding sequence number exists in a memory(Bs), and re-transmit a corresponding I-PDU(S30). If the corresponding I-PDU does not exist in the memory(Bs), the AL3 transmission entity(400) notifies the AL3 receiving entity(401) of a re-transmission unavailable message. The AL3 receiving entity(400) suspends a self timer regardless of the availability/unavailability of re-transmission, and receives a next I-PDU.
Patent KR-20010012005-A (KR)
Title: Automatic water gate
Inventor: HAN SANG KWAN
IPC: E02B7/20
Filed: 1999-07-30
Abstract: PURPOSE: An automatic water-gate is provided to maintain the level of water within a regular range while the water gate is closed by the dead weight to store the water when the flow from the upper stream is reduced and the water gate is opened by the weighted water-pressure to evacuate when the flow is increased. CONSTITUTION: The water gate of automatic type comprises; walls(1) of a reinforced concrete structure constructed in the underwater-beam of a river, the spill-way of a reservoir and an irrigation canal at regular intervals, and in which a supporter(2) is vertically fixed to support a water gate body(3); the water gate body sloped in between the walls(1) and formed in the shape of a square board, and in hollow structure to float on the water, and in which a rotation shaft(3a) is installed in both sides, and in which a plate for resistance(4) is fixed in the reservoir side of the water gate body at certain intervals during making a regular angle with the water gate body; a bank body of which the size is larger than the water gate to enlarge the opened area of the lower end of the water gate; a protection cover formed in the upper part of the bank body; and a flexible knob for emergency escape bonded to the lower end of a slab cover and the water gate.