baber/WOPTO huggingface dataset:
Patent KR-20000037763-A (KR)
Title: Method for forming a window of a flex interposer
Inventor: YEOM GWANG SEOB
IPC: H01L23/12
Filed: 1998-12-02
Abstract: PURPOSE: A method for forming a window of a flex interposer is provided to form the window in a precise position by allowing the tension applied to a polyimide tape to be uniformly distributed over the polyimide tape. CONSTITUTION: A polyimide tape(31) having a thin copper film coated thereon is provided. The tape(31) has a pattern area(33) to which a circuit is formed and a window area(35) to which a semiconductor chip is placed. A circuit pattern(46) is formed by etching the thin copper film. Then, a plurality of ball pads(43) are formed by coating a metal on the circuit pattern(46) of the pattern area(33) and the window area(35). Finally, a window(35a) is formed by punching the window area(35). The ball pads(43) positioned in the window area (35) have a size identical to the size of the ball pads positioned in the pattern area(33).
Patent KR-20000039862-A (KR)
Title: Fabrication method of double balanced mixer
Inventor: JANG BYUNG GYU
IPC: H03C1/00
Filed: 1998-12-16
Abstract: PURPOSE: A fabrication method of a double balanced mixer is provided to embed an inductor within a substrate in order to fabricate the inductor in small size and minimize interference between coils to enhance insulation characteristics and soldering characteristics of the mixer diode. CONSTITUTION: A fabrication method of a double balanced mixer comprises the steps of: forming a first trans by stacking plural dielectric sheets and conducting respective electrode pattern, and forming through hole electrodes for conducting the one end of the first trans and a mixer diode; forming a second trans by stacking plural dielectric sheets on a dielectric sheet having the first trans and conducting respective electrode pattern, and forming through hole electrodes for conducting the one end of the second trans and a mixer diode; printing a land pattern for mounting the mixer diode and then conducting the first and second trans; and forming an outer signal terminal for signal input/output.
Patent KR-20000039965-A (KR)
Title: Apparatus for receiving electric wave using induction current of a magnet
Inventor: KIM DONG JUN
IPC: H01Q1/44
Filed: 1998-12-16
Abstract: PURPOSE: An apparatus for receiving electric wave using induction current of a magnet is provided to receive electric wave properly by using a magnet. CONSTITUTION: A magnet(10) has a hollow portion which is penetrated in the lengthwise direction. An electric wave receiving bar(11) is inserted into the hollow portion of the magnet(10). The electric wave receiving bar (11) is made of a copper. The magnet(10) has a cylindrical shape. A wire(11a) is provided on one side of the electric wave receiving bar(11), and is electrically connected to a TV, a radio, or a cellular phone. The electric wave receiving bar(11) is fixed to the TV, the radio, or the cellular phone.
Patent KR-20000040057-A (KR)
Title: Microporous film having excellent air permeability, physical property and high dimensional stability and method of manufacturing same
Inventor: LEE SANG YEONG
IPC: B01D69/00
Filed: 1998-12-17
Abstract: PURPOSE: A microporous film and process for producing the same are provided which are useful as a separator for a dry cell, in particular lithium ion dry cell. CONSTITUTION: A film having a large size of pores, a uniform size and a shape of pores and excellent porosity is prepared by annealing a polymeric film, stretching the annealed film and thermosetting the stretched film. And one or more processes selected from the group consisting of the annealing process, the stretching process and the thermosetting process are carried out under temperature conditions of mixed temperature gradients. The annealing process is carried out at the mixed temperature gradients of (the melting point of the polymer - 100°C) to (the melting point of the polymer - 5°C), the stretching process is carried out at the mixed temperature gradients of 0 to (the melting point of the polymer - 5°C) and the thermosetting process is carried out at the mixed temperature gradients of 50 to (the melting point of the polymer - 5°C).
Patent KR-20000040099-A (KR)
Title: Method for forming electrodes
Inventor: KIM MYOUNG JUN
IPC: C23F1/02
Filed: 1998-12-17
Abstract: PURPOSE: A method for forming electrodes is provided to prevent undercut from occurring while preventing hillock and junction spiking due to first metal layer. CONSTITUTION: A method for forming electrodes includes first thru fifth steps. At the first step, a first and second metal layers(23,25) are formed on a substrate. At the second step, a photoresist pattern(27) is formed on a predetermined region of the metal layer. At the third step, the first metal layer(23) is etched so as the second metal layer(25) to be exposed using high concentration H3PO4O+HNO3+CH3COOH+H2O composite solution. At the forth step, the exposed portion of the second metal layer is etched with low concentration H3PO4O+HNO3+CH3COOH+H2O composite solution using the photoresist pattern as a mask. At the fifth step, the photoresist is removed.
Patent KR-20000042863-A (KR)
Title: Method for fabricating semiconductor memory device
Inventor: PAK DAE GYU
IPC: H01L27/108
Filed: 1998-12-28
Abstract: PURPOSE: A method for fabricating a semiconductor memory device is provided to improve oxidation resistance property of a barrier metal layer after heat treatment in case that the barrier metal layer is supplied between a capacitor and a lower metal layer. CONSTITUTION: A method for fabricating a semiconductor memory device comprises forming a barrier metal layer(15) by depositing three TiAlN layers(15A,15B,15C) in different temperatures between 100°C and 500°C, and surface-treating each layer after depositing, wherein the semiconductor memory device comprises a capacitor(200), a lower metal layer(100), and a barrier metal layer(15) between a lower electrode(16) of the capacitor(200) and the lower metal layer(100).
Patent KR-20000046235-A (KR)
Title: Method for transmission of telephone device bus data row arrangement and telephone device bus interface circuit for the method
Inventor: SON YEONG HO
IPC: G06F13/00
Filed: 1998-12-31
Abstract: PURPOSE: A method for transmission of a telephone device bus data row arrangement and a telephone device bus interface circuit for the method are disclosed to transfer data in high speed by transferring data according to its row arrangement, not its entire series. CONSTITUTION: A method for transmission of a telephone device bus data row arrangement and a telephone device bus interface circuit for the method is composed of determination, separation, transmission, and generation. A TX/RX selection circuit(210) determines the direction of data transmission according to received mode value from a peripheral processor. A mode/address/data detection circuit(220) sets the signal transmitted to a MAD line to synchronous clock, separates and searches mode, address, and data. The separated 4bit data passes through the data conversion circuit, converted into 8-32bit parallel data, and used by a H/W device's circuit pack. When transmitting data, 8-32 bit data is converted into 4 bit data by data conversion circuit(230) and transmitted to the TX/RX selection circuit. If the mode value displays TX, data is transmitted to MAD(3:0). The TX/RX selection circuit transmits data through MAD(0:3) parallel transmission line and MAD parallel transmission line is distinguished into signal lines which the transmit mode, address, and the TX/RX Data. A ready generation circuit(240) monitors clock and FS and generates READY signal to be used in data transmission.
Patent KR-19990030458-A (KR)
Title: 섬유 직조장치의 패턴 휠
Filed: 1998-12-28
Abstract: 본 발명은 섬유 직조장치의 기계적인 구조를 변화시키지 않고 기모가 될 제 3 원사를 직조하는 바늘대를 유동시키는 제 3 패턴 휠의 구조를 변화시켜 제 3 바늘대의 유동 거리를 보다 많이 이루어지게 하여 제 3 원사의 직조 길이를 6mm로 직조되게 함으로써 기모의 길이를 6mm로 형성할 수 있도록 하는 섬유 직조장치의 패턴 휠에 관한 것이다. 
     이를 위하여 본 발명은, 모터의 동력을 전달받아 회전하는 제 3 패턴 휠(40)의 외주연에는 일정간격으로 캠홈(41)과 돌출부(42)가 배열 형성되고, 이 제 3 패턴 휠(40)의 전방에는 상기 캠홈(41)과의 접촉에 의해 왕복 이동하면서 기모가 형성되게 직조하는 복귀장치(4)가 설치된 것에 있어서, 상기 돌출부(42)의 상사점과 캠홈(41)의 하사점 사이를 14.5~15.75mm의 깊이로 형성함으로써 제 3 바늘대의 유동 거리를 보다 많이 이루어지게 하여 제 3 원사의 기모 길이가 7~10mm로 직조되도록 한 것에 특징이 있다.
Patent KR-19990036233-A (KR)
Title: 피부 노화의 증상을 치료 및 방지하기 위한 커즈메틱 방법
IPC: A61K8/00
Filed: 1997-06-05
Abstract: 본 발명은 피부 노화 특히, 주름의 증상을 치료하며 방지하기 위한 커즈메틱 방법에 관한 것으로, a) 하루에 한번 피부에 적용되며, 국부 투약을 하는 데 적당한 보조제로, 피부 노화를 제거하는 데 효과적인 준(sub)-자극 도우스로 하나 이상의 레티노이드를 포함하는 조성물과, 
     b) 상기 a)에서 언급된 조성물을 약 10 내지 16 시간 적용하게 되는, 국부 투약을 위해 미용학적으로 받아들일 수 있는 적당한 보조제로 하나 이상의 레티노이드의 높은 도우스를 포함하는 조성물로, 특징지어진다. 또한 본 발명은 상기 조성물들을 포함하는 화합(combination) 물에 관한 것이다.
Patent KR-19990064230-A (KR)
Title: 통내 분사형 불꽃 점화식 내연엔진의 제어장치
IPC: F02B23/10
Filed: 1997-08-27
Abstract: 통내 분사형 불꽃 점화식 내연엔진의 제어장치는, 압축행정중에 연료를 분사하여 층상 연소를 행하게하는 압축행정 분사모드 제어와, 흡기 행정중에 연료를 분사하여 균일 혼합연소를 행하게 하는 흡기행정 분사모드 제어와의 사이에서 제어모드를 엔진 운전상태에 따라서 변환한다. 프레미엄 가솔린에 비교하여 옥탄가가 낮은 레귤러 가솔린을 사용하는 경우, 스로틀 밸브 개방도(θth)에 따라서 설정되는 목표 평균 유효압(Pe)을, 모드 변환전후에있어서의 엔진 출력변화를 보상하도록 옥탄가 보정하며, 이것에 의해 모드 변환시의 토오크 쇽크를 방지한다.
Patent KR-20000064456-A (KR)
Title: 동시압출블록및그의용도
IPC: B29K23/00
Filed: 1996-11-20
Abstract: 다공성 제1 블록을 포함하는 동시 압출 블록 복합재료.  블록은 유체가 투과 가능하고 과립 성분 및 결합제 성분을 포함한다.  블록은 제1 평균 지름을 갖는 서로 연결된 공극들을 포함한다.  복합재료는 또한 제2 블록을 포함한다.  게다가, 제1 블록 및 제2 블록중 적어도 하나가 연속적이고 제2 블록의 적어도 일부분이 제1 블록의 적어도 일부분과 접촉한다.  제2 블록은 또한 유체가 투과 가능하다.  필요한 경우, 추가의 블록들이 존재할 수 있다.  제1 블록 이외의 하나 이상의 블록은 과립 성분 및 열가소성 결합제 성분을 갖는 다공성 블록일 수 있다.  동시 압출 블록 복합재료는 필터 매질로서 사용될 수 있다.
Patent KR-20000022361-A (KR)
Title: Lowly electrifiable composite polyester film
Inventor: TOJO MITSUO
IPC: G11B5/735
Filed: 1998-04-28
Abstract: PURPOSE: A low electrostatic composite polyester film is provided which is a useful as a base film for a magnetic recording medium that has low electrostatic properties and is excellent in not only blocking resistance and abrasion resistance but also electromagnetic conversion characteristics and adhesion to a back coat. CONSTITUTION: A low electrostatic composite polyester film comprises a base film C, a coating layer A formed on one side of the base film C, and a coating layer B formed on the other side of the base film C. The coating layer A is formed of a water-soluble or water-dispersible resin containing inert particles and has a center line average roughness of the surface of 0.1 to 2 nm. The coating layer B comprises 1 to 40 wt% of inert particles and a composition containing a water-soluble or water-dispersible resin, the resin-containing composition containing 5 to 85 wt% of a silicone-modified polyester resin or 1 to 30 wt% of silicone or wax based on the layer B. And the base film C is formed of an aromatic polyester.
Patent KR-20000050467-A (KR)
Inventor: KIM HWAN KUK
IPC: F16F9/32
Filed: 1999-01-11
Abstract: PURPOSE: A rod guide of a shock absorber is provided to reduce a shaping time and to improve durability by replacing single steel-sinter of complex form with a assembly of two parts to be easily shaped by pressing CONSTITUTION: A rod guide of a shock absorber contains the following characteristics: to consist of a body (50) to support a piston rod (300) through a rod guide and a cover (60) to be combined to the upper of the body to locate an oil seal (40); where the body has a bush fixing part (52), an oil line (54), the cover has a separating prevention groove (62), which prevents the separation of a bush (70), and an oil passage (64).
Patent KR-20000050806-A (KR)
Inventor: LINFENG WHEY
IPC: A61L27/00
Filed: 1999-01-15
Abstract: PURPOSE: A process for preparing a porous bio-ceramic material for a substitute for bone transplant is provided which can control the crystal structure and composition of the bio-ceramic material. CONSTITUTION: A process comprises the steps of (a) using cancellous bone of animals; (b) obtaining cancellous bone removed organic material from the cancellous bone of animals by heating; (c) dipping the above organic material removed cancellous bone in a phosphate solution; and (d) obtaining the porous bio-ceramic material by sintering at above 900°C. The phosphate solution is alkali metal phosphate, alkali earthmetal phosphate or ammonium phosphate solution. The porous bio-ceramic material by this process can be effectively used as a filler for bone defect.
Patent KR-20000022567-A (KR)
Inventor: CHIKUBA MASANORI
IPC: H02K41/035
Filed: 1999-01-15
Abstract: PURPOSE: A cutting method of rare-earth alloy is provided to continuously drive for a long time by remarkably reducing a collection of an exchange of slurries and by preventing a wire from cutting. CONSTITUTION: A cutting method contains the steps of; fixing plural ingots(20) with an adhesive(22), fixing at a work plate(26) in the state of being assembled with blocks(24a-24c), aligning two slurry supply pipes(29) at the upper part of the work plate(28), supplying the slurry in the interval of the blocks(24a-24c), spraying slurry including fresh polishing particle downward through a nozzle(29a) on a slit to cut rare-earth alloy, establishing a viscosity of the slurry at 25°C in the range from 92-175 maniacal/sec and removing alloyed sludge among slurries by a magnet separator.
Patent KR-20000055077-A (KR)
Title: Steel cords
Inventor: BAE DAL HYANG
IPC: B60C9/00
Filed: 1999-02-03
Abstract: PURPOSE: A steel cords is provided which has improved flexibility due to it's light and simple structure and has improved durability by decreasing phenomenon of fretting due to it's decreased contacting points and improves the performance of the cost of fuel by decreasing rolling resistance given to a tire when being used for reinforcing a part of still belt of the tire. CONSTITUTION: A steel cords is prepared by: (i) plating line materials which is made of carbon steel having a carbon content of 0.85-0.95 wt.% and has a diameter of 0.10-0.40 millimeter with brass; (ii) freshly wet-processing the step (i); and (iii) twisting the obtained two main filaments having a tensional strength of 360 kilogram/square millimeter or more as 1 & times 2 structure.
Patent KR-19990072699-A (KR)
Title: 반도체기판의표면요철을제거하기위한반도체웨이퍼연마장치
IPC: H01L21/304
Filed: 1999-02-13
Abstract: 반도체 웨이퍼의 표면은 로터리 연마 테이블 상에 제공된 연마 패드의 표면 상에 연마 슬러리를 공급하면서 연마 패드에 의해 연마된다.  연마 패드의 표면 상태는 상기 연마 테이블의 회전 방향으로의 웨이퍼의 상류측 상에 제공된 연마 패드 표면 교정 유닛에 의해 조정된다.
Patent KR-19990072779-A (KR)
Title: 탄성체압축스프링
IPC: F16F1/373
Filed: 1999-02-19
Abstract: 지지 부재가 없어도 변형시의 형상이 안정되어 항상 필요한 하중-변위 특성을 얻을 수 있는 탄성체 압축 스프링을 제공한다. 
     직경 방향의 누름에 의한 압축 에너지를 원통상의 스프링 본체(21)의 탄성 변형에 의해 흡수하는 탄성체 압축 스프링(20)에 있어서, 상기 스프링 본체의 누름을 받은 측면에 누름 방향과 수직인 면을 따라 돌출하여 평탄한 저면을 이루는 베이스(24)가 형성되어, 베이스(24)의 부풀어 돌출된 부분과 상기 원통상의 스프링 본체(21)의 측면부를 연결하는 보강벽(26)이 일체로 형성된 탄성체 압축 스프링.
Patent KR-20000060313-A (KR)
Inventor: KIM CHANG SUN
IPC: H04B1/06
Filed: 1999-03-13
Abstract: PURPOSE: A destination guide system is provided to allow a visitor to easily arrive at a final destination by informing the visitor of a specific location of a building or a specific location within a place or a building. CONSTITUTION: A destination system comprises a fixed system and a portable module(20). The fixed system, installed at a set position of a building, includes a voice memory, a RF(radio frequency) transmitter or an infrared transmitter, a controller, and an operation panel. The portable module(30) includes a wireless data receiver(32) with a RF receiver(32a) or an infrared receiver(32b), a controller(36), and a voice output device(38). The wireless data receiver(32) receives the RF and infrared signal from the fixed system. The controller(36) modulates the RF and infrared signal to recover a corresponding voice signal. The voice output device(38) generates a voice via a speaker or an earphone. The portable module(30) can include a receiving level display to let a visitor know a distance from a current position to a position of the fixed system.
Patent KR-20000061017-A (KR)
Inventor: KIM DONG SUN
IPC: A01G25/02
Filed: 1999-03-23
Abstract: PURPOSE: A dropper is provided, to supply quantitative and constant amount of water for farm products irrespective of the slope of water pipe and the water pressure. CONSTITUTION: The dropper (1) comprises a body (2) which has a water inducing path (4) whose lower part is closed and whose upper part is opened; an arc member (3) which is formed in one body with the body (2) by extrusion molding, and is closely adhered to the inner wall of a water supply pipe (5); a hole (6) which is formed in the lower part of the water inducing path (4) to penetrate the wall of an arc member (3); a water stay space (7) where the water ejected from the water inducing path (4) through the hole (6) stays; a water releasing ball (8) which penetrates and is formed through the wall of the water supply pipe (5) to connect the water stay space (7) and the exterior; and a silicone flux control valve (9) having an elastic piece (9a) which is inserted into the water inducing path (4) not to block the hole (6), and shrinks to decrease the cross-sectional area in water pressure increasing.
Patent KR-20000065979-A (KR)
Inventor: KIM YEONG ROK
IPC: H04Q3/00
Filed: 1999-04-12
Abstract: PURPOSE: An apparatus for integrating an E1 trunk processing function and a No.7 protocol function is provided to process both E1 trunk processing function and No.7 protocol function in an E1 trunk function subsystem by adding the No.7 protocol function to the E1 trunk function subsystem that carries out an E1 trunk interface function. CONSTITUTION: An apparatus for integrating an E1 trunk processing function and a No.7 protocol function is comprised of an E1 trunk/No.7 protocol function subsystem(20) and a mutual connection subsystem(10). A No.7 protocol function is added to the E1 trunk/No.7 protocol function subsystem(20) so that both E1 trunk processing function and No.7 protocol function can be carried out in the E1 trunk/No.7 protocol function subsystem(20).
Patent KR-19990046711-A (KR)
Title: 점착식이중비닐노트표지
Filed: 1999-04-14
Abstract: 본 발명은 점착식 이중 비닐 노트표지에 관한 것으로서, 더욱 상세하게는 노트표지를 외부 비닐커버와 내부 비닐커버를 형성하고 외부 비닐커버 내측면의 일부 또는  전체에 점착부를  형성하고  내외부  비닐커버를  용이하게  붙이거나  떼어낼 수 있게  형성하여,  노트의  사용중에  내외부 비닐커버을 벗기고 그림이나 사진  등으로 된  도안지를  깔아 끼운 후  점착시켜  사용하며  그림이나  사진  등으로 된  도안지를 수시로  교환하여  사용할 수  있게  하므로서  소비자들에게  경제적인  낭비를  줄이게하고  기분의  전환을  가져다 줌과 동시에 생산자의  측면에서도  노트의  생산단가를 절감할 수 있도록 하기 위한 것이다. 
     본고안에 의한 점착식 이중 비닐 노트표지는 수십매 형성된 속지(3)가 접착제,  봉제  또는  바인더에  의해  편철되여  표지(2)에 인해  덮혀지는 노트(1)에  있어서,  상기  표지(2)는 편철부(6)에  외부 비닐커버(4)와 내부 비닐커버(4')로 분활되게  이중으로 형성하고,  상기  외부 비닐커버(4,4')  또는 내부  비닐커버(4')의  내측면 또는 외측면의 테두리부에 소정의 폭을 가지는 점착부(5)를 형성하거나 또는 상기 외부 비닐커버(4) 또는 내부 비닐커버(4')의 내측면 또는 외측면의 전체에 점착부(5')를 형성하여,  외부 비닐커버(4,4')와 내부 비닐커버(41)를 분리하고 결합하여 그림이나 사진 등으로 된 도안지(7)를 용이하게 교환할 수 있도록 한 것을 특징으로 한다.
Patent KR-19990083374-A (KR)
IPC: B32B37/15
Filed: 1999-04-21
Abstract: 본 발명은 금속화되거나 산화물로 피복된 후에 우수한 가공성과 함께 매우 우수한 기체 또는 산소 차단성을 갖고 하나 이상의 기저층과 당해 기저층에 적용된 하나 이상의 외부층으로 구성된, 두개 이상의 층을 갖고 평면 연신도 ΔP가 0.165 이상인 이축 연신 폴리에스테르 필름에 관한 것이다.
Patent KR-19990046773-A (KR)
Title: 전자식수처리장치
Filed: 1999-04-23
Abstract: 본 발명의 목적은 공장이나 도시의 각종 건축물에 용수, 냉,온수 등을 공급하는 배관 사이에 설치되어 배관의 부식과 적수를 방지하고 배관내 스케일의 누적을 방지하기 위한 전자식 수처리장치를 제공하는 데 있다. 
     상기 목적을 달성하기 위한 본 발명은 측벽을 따라 상하부에 용수의 입출구(11,12)가 형성되고 상단에는 오링홈(14)을 가지는 플랜지(13)가 형성되며 상기 측벽은 외부전극판(16)을 감싸는 내부 및 외부절연층(15,17)에 의해 형성되는 원통형상의 몸체(10)와, 상기 오링홈에 장착될 오링(25)과, 상기 몸체(10)의 내부에 장착되어 내부전극이 될 도체(21)를 절연체(22)로 감싸고 이 절연체와 같은 재질로 상기 몸통의 내경을 따라 안내되어 안착시키기 위한 하단플랜지(24)와 상기 오링위에 배치될 상단플랜지(23)를 형성한 내부전극봉(20)과, 상기 몸체 내부에 내부전극봉을 장착한 후 고정시키기 위한 고정덮개(18)를 포함한다.
Patent KR-20000073761-A (KR)
Inventor: KIM YONG TAE
IPC: F24H9/20
Filed: 1999-05-13
Abstract: PURPOSE: A method for controlling a system when sensing gas leakage in a gas boiler is provided to prevent misoperation of a gas alarm due to the error of gas leakage sensing signal and to promptly ventilate the leaked gas, thereby improving the reliability of the gas boiler. CONSTITUTION: A method for controlling a system when sensing gas leakage in a gas boiler for generating fire extinguishing signal in a micro computer and completely intercepting the power supply voltage with displaying ventilating picture to a user if gas leakage sensing signal is input, includes the steps of determining the current state of gas boiler operation if the gas leakage sensing signals are continually input for a specified period of time(S16), intercepting a first electronic valve and a second electronic valve if the gas valve normally operates(S22), maximally driving a ventilating fan compulsorily by the micro computer(S24), and continuously sensing the leaked gas with maximally driving the ventilating fan until the leaked gas is all ventilated(S26).
Patent KR-20000075137-A (KR)
Inventor: KO SANG HO
IPC: H04L12/28
Filed: 1999-05-29
Abstract: PURPOSE: An optical network unit(ONU) of demand-concentrated broadband subscribers, is provided to connect and multiply voice of a general telephone/a public phone, an integrated services digital network(ISDN), N64k, DS1, DS1E and high speed service data services such as an asymmetric digital subscriber line/very high bit rate digital subscriber line(ADSL/VDSL), and to optically transmit STM-4c(STM-1) to an opposed station of a host digital terminal(HDT). So that receiving capacity per shelf can be maximized. CONSTITUTION: An optical network unit main control unit(OMCU) manages and controls information of an optical network unit(ONU) as a main controller, and performs a communication function with a host digital terminal(HDT). An optical network interface unit(ONIU) has a function generating clocks from signals inputted from an external, and an 622Mbps(155Mbps) optical interface function. An extension unit(EXTU) performs three STM-1 connections as a unit for extending a shelf, and relays an asynchronous transfer mode(ATM) cell. An E1T1 unit selectively supplies a 1.544Mbps or 2M dedicated line to each port. A channel test interface unit(CTIU) tests a line/speech path as a subscriber line test unit. Subscriber telephone coin phone/basic rate interface unit/data 64kbpsxN/primary rate interface unit(STCP/BRIU/D64N/PRIU), receive data and clocks from the ONIU and directly connect a subscriber. A subscriber channel unit applies an asymmetric digital subscriber line/very high bit rate digital subscriber line(VDSL/ADSL).
Patent KR-19990068691-A (KR)
Title: 전화기의송수화기
IPC: H04M1/03
Filed: 1999-06-11
Abstract: 본 발명은 전화기의 송수화기에 관한 것으로, 특히 유무선 전화기의 송수화기 일측에서 그 길이를 변화시킬 수 있는 형태로 설치되어 있는 송화용 캡에 통화내용 유출 방지수단을 설치하여 유무선 전화기를 통해 불특정인과 통화를 실시할시 송수화기의 마이크폰 주변에 설치된 상기 통화내용 유출 방지수단이 입주변을 막아주도록 하므로써 어떤 장소에서 통화를 실시하더라도 통화내용이 타인에게 유출되는 것을 방지할 수 있어 개인의 프라이버시를 보호할 수 있음은 물론 공공장소에서의 애티켓을 보장할 수 있고, 또 송수화기의 타측부에 설치되어 있는 목걸이 캡과 목걸이판을 이용하여 송수화기 자체를 목에 걸고 통화를 실시할 수 있도록 하므로써 송수화기 자체를 손으로 잡지않고도 통화를 실시할 수 있도록 한 것이다.
Patent KR-20010002405-A (KR)
Inventor: KIM JOONG SUK
IPC: E04G21/02
Filed: 1999-06-15
Abstract: PURPOSE: A construction method for a concrete structure in the winter season is provided to shorten the hardening time of concrete, and keep the structural strength uniformly by hardening the inside/outside of concrete uniformly, so that the construction for a concrete structure in winter is possible. CONSTITUTION: A construction method for concrete structure(6) in winter comprises the steps of; installing the electrical heating wires(4) in zigzag shape within the range of concreting height during being fastened on arranged bars(2) by the binding wires; pulling out the both ends of electrical heating wires(4) from a mold form(1), and connecting to a power supply(5); and supplying the electricity to the electrical heating wires(4) for generation of heat when concreting. Therefore, freezing of the concrete is prevented even in winter by the heat of electrical heating wires(4), and the hydration of cement proceeds, so that the concrete is hardened.