baber/WOPTO huggingface dataset:
Patent KR-20020031496-A (KR)
Title: Electronic commercial system and method for applying to payment function of a money repaid
Inventor: KIM BYUNG WOO
Filed: 2000-10-20
Abstract: PURPOSE: A system and method for electronic commerce by supplying redemption money are provided to activate an electronic commerce by supplying a partial portion of a purchasing price to the corresponding buyer as a repayment form when the buyer connects to the Internet and a web site for selling the corresponding commodity and purchases a commodity after receiving a basic advertisement with respect to the commodity. CONSTITUTION: In an electronic commerce system connected to a plurality of user terminals through the Internet and for linking the user terminals with a shopping mall system on the Internet, a selling information database(132) stores basic information with respect to a commodity sold by the shopping mall system. A user database(131) stores user registration information including personal contents, repayment payment account information, commodity transaction details, repayment accumulation details with respect to the user. A selling information managing unit(122) transmits basic information with respect to the commodity through the user terminal. A payment processing unit(123) analyzes the commodity transaction details being inputted from the shopping mall system and calculates a repayment to be paid to the user. If repayment payment condition is satisfied, the payment processing unit(123) pays a repayment to the user.
Patent KR-20020032661-A (KR)
Title: Low aerodynamic noise rubber cap for insulator and method for connecting insulators each other using thereof
Inventor: LEE DONG IL
IPC: H01B17/38
Filed: 2000-10-25
Abstract: PURPOSE: A rubber cap for an insulator and a method for connecting insulators thereby is provided to reduce wind noise generated in a cavity of the insulator and due to a connecting part and a connecting structure of two insulators. CONSTITUTION: A rubber cap for an insulator comprises a loop(12) inserted for surrounding a ball(32) of the insulator(30). The loop(12) includes an aperture for facilitating insertion of the insulator(30), a closing part(18) for closing a cavity of a socket(42) of another insulator(40), and a groove for providing damping between the connected insulators(30,40). The closing part(18) has a support part facing the bottom side of the socket(42), a connecting part between the support part and the loop(12), and many protrusions on its inner side. When the rubber cap is fixed around the ball(32) of the insulator(30), the ball(32) of the insulator(30) is inserted into the socket(42) of the other insulator(40). The support contacts the bottom of the socket(42). The outer side of the part of the closing part(18) faces the boundary of the socket(42). The protrusions contact the ball(32) and the socket(42).
Patent KR-20020034323-A (KR)
Title: Slit cover shelter by train tunnel
Inventor: KIM DONG HYEON
IPC: E21D11/38
Filed: 2000-10-31
Abstract: PURPOSE: A slit cover shelter for decreasing micro pressure waves of a railroad tunnel is provided to reduce noise pollution and vibration of the way out side of a tunnel due to micro pressure waves by decreasing micro pressure waves generated when a train approaches a tunnel by installing a slit cover shelter on the center of a continuous tunnel. CONSTITUTION: In the slit cover shelter for decreasing micro pressure waves of a railroad tunnel, a way out of a primary tunnel and a way in of a secondary tunnel are connected to decrease micro pressure waves of a continuous tunnel, a rectangular cover is installed to house through holes formed on sidewalls and an inclined pithead is installed to have an angle of 45 degrees toward a way in of a primary tunnel and a way out of a secondary tunnel.
Patent KR-20010016141-A (KR)
Title: Relay Method of Communication Image and Data
Inventor: KIM HYEONG JIN
IPC: H04N7/15
Filed: 2000-11-13
Abstract: PURPOSE: A method for video communication and data transfer are provided for a user to perform 1:1 or 1:N video communication and to share data by connecting to the video communication server. CONSTITUTION: The method for video communication and data transfer includes several processes. Users connect to a video communication server via network. A member joining process is that users join in members of the video communication server(S30). A member information changing process is that a user joining in members changes member join information stored in database of the video communication server(S32). A meeting reserving process is that the user joining in members reserves a video communication meeting(S36). A meeting attending process is that the user joining in members attends the reserved video communication meeting(S34). Through these processes, the user can use the video communication.
Patent KR-20020037889-A (KR)
Title: Method of preparing negative active material for lithium secondary battery, negative active material for lithium secondary battery prepared by same, and lithium secondary battery comprising negative active material
Inventor: CHOI WAN UK
IPC: H01M4/04
Filed: 2000-11-15
Abstract: PURPOSE: Provided are a process for producing an anode active material for a lithium secondary battery having excellent capacity and efficiency and the lithium secondary battery containing the anode active material. CONSTITUTION: The process for producing the anode active material comprises: adding a resin or a hard carbon to pitch or tar, wherein the resin is selected from the group consisting of a novolac resin, a resol resin, a furan resin, RAN, and a phenol resin; coking the mixture; carbonizing the coked product; performing the graphitization of the carbonized product. And the lithium secondary battery comprises an anode containing the anode active material, a cathode containing a cathode active material represented by the formula: LiMxNyO2, a separator, and an electrolyte. In the formula, M is selected from the group consisting of Co, Ni, and Mn, N is selected from the group consisting of Ni, Mn, Ti, Sr, and Y, x is 0.1 to 1, and y is 1-x.
Patent KR-20020038092-A (KR)
Title: Vehicle door closing power improvement
Inventor: LEE BYEONG HEON
IPC: B60J5/00
Filed: 2000-11-16
Abstract: PURPOSE: A device for increasing the closing force of a vehicle door is provided to prevent the invasion of foreign matters and noises from the outside by increasing the closing force of a vehicle door. CONSTITUTION: A device for increasing the closing force of a vehicle door comprises a relay(2) to determine the operation of an air compressor(3) and the opening direction of an air valve(4), the air compressor operated only when the relay is turned on to generate air of a specific pressure, a weather strip(7) fixed on a door panel(8) and expanding and contracting depending on the operation of the compressor and the opening direction of the air valve, the air valve installed on an air hose(6) communicating the air compressor with the weather strip to supply the air generated by the compressor to the weather strip or discharge the air from the weather strip, and a pressure gauge(5) installed on the air hose to cut off the operation of the air compressor when a pneumatic pressure increases over a specific value when the compressed air is injected to the weather strip.
Patent KR-20020044617-A (KR)
Title: Oil supply device
Inventor: HWANG JUNG HYEON
IPC: F01M11/04
Filed: 2000-12-06
Abstract: PURPOSE: An oil supply apparatus is provided to supply oil of proper amount to friction elements of an engine by keeping oil in an oil pan, and to easily install an oil supply apparatus by using an auxiliary oil tank. CONSTITUTION: An oil supply apparatus comprises a housing(3) formed in an oil pan(1) and having many through holes(2), a float(4) installed in the housing and moving upward and downward depending on the change of the surface of oil, a contact point(5) formed on each upper face of the housing and the float and supplying the voltage of a battery to an oil pump(9) when the float is moved to the uppermost position, an auxiliary oil tank(6) for storing oil and installed higher than the oil pan, an oil supply pipe(7) for connecting the auxiliary oil tank with the oil pan and supplying oil to the oil pan from the auxiliary tank when the float is lowered, an oil feedback pipe(8) for connecting the auxiliary oil tank with the oil pan, and the oil pump for returning the oil in the oil pan to the auxiliary oil tank. Therefore, uniform amount of oil remains in the oil pan.
Patent KR-20020047649-A (KR)
Title: Gripper for Component Having Different Shape in Surface Mount Device
Inventor: KIM DONG JUN
IPC: B25J15/02
Filed: 2000-12-13
Abstract: PURPOSE: A heterogeneous-shaped device gripper applied to surface mounter is provided to improve the productivity by holding heterogeneous-shaped devices, each of which has a different size. CONSTITUTION: An end of a holder(110) is installed within a socket unit and the holder(110) is provided with a through hole(110a) for forming a channel of air flowed in/out through the socket unit. A piston(120) is installed within the through hole(110a) and risen and dropped by the pressure of air flowed in/out through the through hole(110a) in a vertical direction. A movement unit(130) is installed on both sides of an end of the holder(110) and is provided with a sloping side so as to be moved by the piston(120) in a horizontal direction. A plurality of grip tips(140) are fixed on the movement unit(130) and grip or put a heterogeneous-shaped device according to the movement of the movement unit(130).
Patent KR-20020049752-A (KR)
Title: On/off switch of terminal
Inventor: SONG IN SU
IPC: H04B1/38
Filed: 2000-12-20
Abstract: PURPOSE: A flip on/off switch device for a flip type terminal is provided to perfectly remove the generation of an error operation by locating a flip on/off switch on an axis line of a hinge and operating a tact switch by an actuator composed in a dummy hinge. CONSTITUTION: A tact switch(120) is installed on an axis line of a dummy hinge(300) in a main PCB of a body(100). An actuator(310) is composed at one side of the dummy hinge(300) inserted into the body(100) for selectively operating the tack switch(120). An asperity(320) is installed at the other side of the dummy hinge(300) so that the asperity(320) is inserted into a concave groove(211a) of a hinge combining hole(211) formed in a hinge portion(210) of a cover(200) and the rotation is controlled.
Patent KR-20020051580-A (KR)
Title: Preparation method of melt extrusion coated paper using aliphatic polyester resin
Inventor: AHN YUN TAE
IPC: D21H19/28
Filed: 2000-12-22
Abstract: PURPOSE: A process of preparing coating paper by melt spinning biodegradable polyester resin compositions in a specified condition and coating on the surface of paper is provided. Whereby, the coating paper is naturally decomposed in soil by its biodegradability after use. CONSTITUTION: Biodegradable polyester resin compositions having a number average molecular weight of 30,000 to 70,000, a weight average molecular weight of 160,000 to 600,000, a melting point of 115 to 120deg.C and a melt flow index(190deg.C, 2,160g) of 0.1 to 50g/10min are coated on paper to produce harmless, odorless coating paper, wherein the polyester resin compositions are prepared by reacting aliphatic glycol as a main component and 0.1 to 30% by weight of a monomer containing one or two or more amine groups as a functional group, based on the theoretical amount of polyester resin.
Patent KR-20020054940-A (KR)
Title: clamping device of file sharpener for a saw blade
Inventor: CHUNG BYUNG CHANG
IPC: B23D63/14
Filed: 2000-12-28
Abstract: PURPOSE: A clamping apparatus for a circular saw is provided to improve the productivity and to prevent the vibration generated when processing saw tooth of the circular saw by clamping upper and lower ends of the circular saw with a constant pressure. CONSTITUTION: A hobbing gear driving section is installed at one side of a base(110) so as to form a saw tooth section at a peripheral portion of a circular saw. A rotating table(200) is movably and rotatably installed on the base(110) so as to rotate the circular saw. A clamping device is installed on the upper portion of the rotating table(200) to prevent the circular saw from being vibrated when the hobbing process is carried out. The clamping device includes a lower supporting member mounted on the rotating table(200) for loading the circular saw thereon, an upper supporting member(420) making contact with an upper surface of the circular saw, and a pressing section for pressing the end of the circular saw with a predetermined pressure.
Patent KR-20020055702-A (KR)
Title: Strap for isolation
Inventor: KIM YONG HO
IPC: B60R16/02
Filed: 2000-12-29
Abstract: PURPOSE: A spacer strap is provided to fix intersected wire ring and parts elements while to prevent unlocking by vibration, by adapting strap capable of being rotated with its head portion at a spacing position. CONSTITUTION: A spacer strap comprises a strap(22) as a binding unit, and a spacing portion(14) connecting a head portion(24) together. The head portion is able to be rotated at the spacing portion. The spacer strap uses common strap which binds a wire ring and parts elements together. The strap has a fixing protrusion(26a) at a band portion(26) for maintaining fastening state. An engaging sill(25b) is formed at a contact face with the fixing protrusion in a recess(25a) of the head portion. The spacing portion connects the head portion with the spacer strap. The fixing protrusion is engaged with the engaging sill of the head portion, thereby preventing unlocking by vibration.
Patent KR-20020056067-A (KR)
Title: A composition of manual transmission oil for improve shiftfeeling at low temperature
Inventor: BAE DAE YUN
IPC: C10M125/00
Filed: 2000-12-29
Abstract: PURPOSE: A composition of manual transmission oil that displays perfect lubrication of integral gearboxes and clutch components, even under the severe conditions of heavy load and torque is provided, especially to improve shift-feeling at low temperature. CONSTITUTION: The composition of manual transmission oil comprises 50 to 95 wt% of base oil, 0.05 to 5 wt% of antiwear agent such as zinc dithiophosphate(Zn-DTP), 0.05 to 5 wt% of metallic dispersant such as magnesium sulfonate or calcium sulfonate, 0.05 to 5 wt% of phosphorus friction reducer such as amine phosphate represented by formula(I), 0.05 to 5 wt% of extreme pressure agent such as antimony alkyl dithiocarbamate and molybdenum dithiocarbamate(MoDTC) represented by formula(II). In the formulae, R is alkyl having a carbon number of 10 to 20, n is an integer of 3 to 6. The base oil is characterized in that it is mineral oil or synthetic oil with a viscosity of 3 to 10 cst at 100°C and its viscosity index is 100.
Patent KR-20010030624-A (KR)
Title: Metal compounds, mixed or sulphated, as phosphate binders
IPC: C01B32/60
Filed: 1998-09-18
Abstract: A mixed metal compound for pharmaceutical use is free from aluminium and has a phosphate binding capacity of at least 30 %, by weight of the total weight of phosphate present, over a pH range of from 2-8. The compound is especially useful for treatment of hyperphosphataemia. The metals are preferably iron (III) and at least one of calcium, magnesium, lanthanum and cerium. A metal sulphate for pharmaceutical use is selected from at least one of calcium, lanthanum and cerium sulphate compounds and has a phosphate binding capacity of at least 30 % by weight of the total phosphate present, over a pH range from 2-8.
Patent KR-20010032776-A (KR)
IPC: C07D403/06
Filed: 1998-12-03
Abstract: 본 발명은 아드레날린성 활성을 가지며, 2B 및 2C 아드레날린성 수용체 서브타입 중 하나 또는 모두에서 2A 아드레날린성 수용체 서브타입에 우선하여 선택적으로 작용하며; 하기 화학식을 가지는 화합물들로 구성된 군에서 선택되고; 
     
       
     
     [상기 식에서, 점선은 두개의 이중결합이 공통 탄소 원자를 공유하지 않는 경우 선택적인 결합을 나타내며; R은 H 또는 저급 알킬이고; X는 S 또는 C(H)R 1 이고, 여기서 R 1 은 H 또는 저급 알킬이나, X와 로 나타내어지는 고리 사이의 결합이 이중결합인 경우에는 R 1 이 없고; Y는 O, N, S, (CR 1   2 ) y (여기서 y는 1 내지 3의 정수), -CH=CH- 또는 -Y 1 CH 2 -(여기서, Y 1 는 O, N 또는 S)이고; x는 1 또는 2의 정수이며, R 2 , R 3 또는 R 4 가 불포화 탄소 원자에 결합된 경우에는 x가 1이고, R 2 , R 3 또는 R 4 가 포화 탄소 원자에 결합된 경우에는 x가 2이고; R 2 는 H, 저급 알킬, 할로겐, 히드록시 또는 저급 알콕시이거나, 포화 탄소 원자에 결합되는 경우에, R 2 는 옥소일 수있고; R 3 및 R 4 는 각각 H, 저급 알킬, 히드록시, 저급 알콕시 또는 페닐이거나, 또는 함께 -(C(R 2 )x)z-; -Y 1 (C(R 2 )x)z'-; -Y 1 (C(R 2 )x)yY 1 -; -(C(R 2 )x)-Y 1 -(C(R 2 )x)-;-(C(R 2 )x)-Y 1 -(C(R 2 )x)-(C(R 2 )x)- 및 -Y 1 -(C(R 2 )x)-Y 1 -(C(R 2 )x)-이고, 여기서 z는 3 내지 5의 정수이고, z'는 2 내지 4의 정수이고, x 및 y는 상기한 바와 같으며, 이러한 2가 잔기 각각의 어느 한쪽 말단은 R 3 또는 R 4 중 어느 하나에 결합되어 축합고리 구조를 형성하고, 형성된 고리는 전체적으로 불포화, 부분적으로 불포화, 또는 고리의 탄소가 4가 이하이고, 질소가 3가 이하이고, O 및 S가 2가 이하인 경우, 전체적으로 포화일 수 있다.]; 진정 또는 심혈관 부작용 없이 활동항진성 배뇨, 설사, 이뇨를 포함하는 근육경직, 금단증후군, 신경병적 통증을 포함하는 통증, 안신경병을 포함하는 신경변성 질환, 척수 허혈 및 졸중, 기억 및 인지 결손, 집중 결여 질환, 조울증, 불안증, 우울증을 포함하는 정신병, 고혈압, 울혈성 심부전, 심허혈 및 코 울혈을 치료하는 데 유용한 화합물에 관한 것이다.
Patent KR-20010034128-A (KR)
Title: 화학 기상 증착 냉벽 챔버 및 배출 라인의 세정 방법
IPC: H01L21/205
Filed: 1998-11-12
Abstract: 본 발명은 염소 가스(Cl 2 )를 제공하고, 염소 라디칼을 형성하며, 염소 라디칼과 증착물을 반응시킴으로써, 공정 챔버로부터 이전에 증착된 증착물을 세정하는 방법에 관한 것이다.
Patent KR-20010041151-A (KR)
Title: 조립식 환자 격리 장치
IPC: A61G10/00
Filed: 1999-12-13
Abstract: 본 발명은 베이스를 포함하는 위험한 생물학적 및 화학적 재료의 불필요한 오염을 방지하기 위한 조립식 개인용 격리장치에 관한 것이다.  커버는 지퍼에 의해 베이스에 연결된다.  다수의 글로브 박스 포트는 환자에게 신속하고도 편안한 처치를 허용하기 위해 제공된다.
Patent KR-20010083773-A (KR)
Title: 연속 주조 빌릿 및 그 제조방법
IPC: B22D11/12
Filed: 1999-12-17
Abstract: 본 발명은 중심 편석이 적은 연속 주조 빌릿, 특히 고탄소강 연속 주조 빌릿 및 그의 제조방법을 제공하는 것을 목적으로 한다. 
     연속 비트 빌릿에 있어서, 빌릿 중심부의 분기상 등축정의 크기를 6mm 이하로 한다.   그러므로, 주형내 전자 교반을 행하여, 빌릿 표층 10mm 이내의 일차 덴드 라이트 경사각을 10도 이상으로 한다.  또한, 연속 주조 중에 경압하를 행하고, 빌릿 중심부의 중앙 공극률을 직경 4mm 이하로 한다.  이로 인해, 특히 탄소 농도 0.6 질량% 이상, 빌릿 사이즈 160mm 이하의 연속 주조 빌릿의 제조에 있어서, 빌릿의 중심 편석을 저감하고, 선재 압연 후의 신선에 있어서 단선 트러블이 적은 빌릿을 제공할 수 있다.
Patent KR-20010042385-A (KR)
Title: 흡기·송풍 장치
IPC: F24F13/15
Filed: 1999-03-25
Abstract: 본 발명의 흡기 . 송풍 장치는 공기흡입구(5)와 상기 공기흡입구(5)를 둘러싸는 공기토출구(9)를 설치한 본체 케이싱(2)의 내부에, 모든 방향으로 공기의 토출이 가능한 터보 팬등의 송풍 팬(11)을 포함한다. 상기 공기토출구(9)에는 나선상의 토출 선회 기류를 생성하는 선회류생성부재가 설치되어 있고, 나선상으로 선회하는 토출 기류가 형성된다. 상기 토출 기류에 둘러싸인 공기는 안정적인 강한 와류로 되어 공기흡입구(5)로 강하게 흡인된다.
Patent KR-20010042584-A (KR)
Title: 염료 침투 방법 또는 자성 방법 이후 사용되는 크랙 검출장치
IPC: G01N21/91
Filed: 2000-02-04
Abstract: 본 발명은 작업편(10)의 염료 침투 방법이후 또는 자성 크랙 검사용으로 사용되는 크랙 검출 장치에 관한 것이다. 상기 장치는 광 장비(equipment)(11),  (13) 및 (14)를 포함한다. 발광 다이오드(LED)는 상기 장치의 광 장비이다.
Patent KR-20010043551-A (KR)
Title: 알케닐 치환체를 갖는 설포닐 아미노 (티오)카보닐트리아졸린 (티)온
IPC: C07D413/12
Filed: 1999-05-17
Abstract: 본 발명은 신규한 하기 일반식 (I)의 알케닐 치환체를 갖는 설포닐아미노(티오)카보닐트리아졸린(티)온 및 그의 염, 그의 제조를 위한 방법 및 신규 중간체, 및 제초제 및/또는 살진균제로서의 그의 용도에 관한 것이다: 
     
       
     
     상기 식에서, 
     Q 1 은 산소 또는 황을 나타내고, 
     Q 2 는 산소 또는 황을 나타내며, 
     R 1 은 수소, 아미노, 알킬리덴아미노, 또는 각 경우에 임의로 치환된 알킬, 알케닐, 알키닐, 알콕시, 알케닐옥시, 알킬아미노, 디알킬아미노, 알카노일아미노, 사이클로알킬, 사이클로알킬알킬, 사이클로알킬아미노, 아릴 및 아릴알킬로 구성된 그룹중에서 선택된 래디칼을 나타내고, 
     R 2 는 임의로 치환된 알케닐을 나타내며, 
     R 3 는 각 경우에 임의로 치환된 알킬, 아르알킬, 아릴 및 헤테로아릴로 구성된 그룹중에서 선택된 래디칼을 나타낸다.
Patent KR-20010043903-A (KR)
Title: 정보처리 시스템
IPC: G06F21/87
Filed: 2000-03-30
Abstract: 퍼스널 컴퓨터(1)는, 통신부(25)를 거쳐서 인증국에 서명을 붙인 소스프로그램을 송신하고, 인증국은 수신한 소스프로그램에 개찬이 발견되지 않은 경우, 수신한 소스프로그램을 인증국의 비밀키로 암호화하여 퍼스널 컴퓨터(1)에 송신한다.    퍼스널 컴퓨터(1)는, 인증국에서 수신한 암호화된 소스프로그램을 HDD(21)에 기억하는 동시에 어댑터(26)에 송신한다.
Patent KR-20010069283-A (KR)
Inventor: HWANG TAE HO
IPC: A61B10/00
Filed: 2001-02-28
Abstract: PURPOSE: An intelligent type female health information management system is provided to obtain correct and reliable information regarding temperature of female body, and provide a user with an optimized health information through mobile communication equipment. CONSTITUTION: An intelligent type female health information management system comprises a temperature sensor(111) for measuring basal body temperature; a central processing unit(114) and a memory(113) for storing the measured temperature value as a database and analyzing the database; a display unit(116) for transferring the analyzed health information to the object person for measurement; a basal temperature measuring unit connected to the temperature sensor; a printer output port; and a communication module for mobile communication with the personal PC and Internet center.
Patent KR-20020070673-A (KR)
Inventor: BAEK GWANG HYEON
IPC: D01F6/62
Filed: 2001-03-02
Abstract: PURPOSE: Provided is polyester fiber containing illite which is characterized by radiating far infrared ray, having antibacterial property, having thermo storage ability, deodorizing, increasing dyeability, having a good feeling of wearing, being good for the health and being useful for underclothes, an outer garment, socks, stockings and bedclothes. CONSTITUTION: The polyester contains 0.3-10% of the refined illite based on weight of the polyester fiber. The refined illite is obtained by refining natural illite containing ferric oxide(Fe2O3). The refined illite contains under 0.5% of ferric oxide. Titanium oxide is added to the polyester fiber for increasing dyeability occasionally. Total quantity of the titanium oxide and the illite is under 10% based on weight of the polyester fiber.
Patent KR-20020072061-A (KR)
Title: Slip Preventing Apparatus for Car
Inventor: KIM HYUN JUNG
IPC: B60T7/12
Filed: 2001-03-08
Abstract: PURPOSE: A non-skid device for a vehicle is provided to prevent a vehicle from slipping back when stopping or starting on a slope way, and to prevent accidents. CONSTITUTION: A non-skid device for a vehicle controls drive of a clutch shaft(4) with disposed at the clutch shaft of a vehicle. The non-skid device comprises a rotary frame(110), a fixed frame(120), and movable fixing units(130a,130b). A side of the rotary frame is fixed to the outer circumference of the clutch shaft to be rotated with rotation of the clutch shaft together. A side of the fixed frame is inserted into the other side of the rotary frame and the clutch shaft goes through the inside of the fixed frame. The fixed frame has plural fixing protrusions(121) along the outer circumference and the other side of the fixed frame is fixed to a vehicle body. The movable fixing unit is coupled to the inside of the rotary frame to be rotated. The movable fixing unit is fixed to the fixing protrusions of the fixed frame by centrifugal force, with unlocked when the clutch shaft rotates in normal direction, and fixed to the fixing protrusions with locked when the clutch shaft rotates inversely at low speed.
Patent KR-20020076702-A (KR)
Inventor: CHOI SEUNG HO
IPC: H04B1/26
Filed: 2001-03-30
Abstract: PURPOSE: A VHF(Very High Frequency) image trap circuit is provided to configure a trap with a stream line without using a VCD(Variable Capacitance Diode) for strongly removing an image, thereby compensating an image point trap in accordance with frequency changes with a lower cost. CONSTITUTION: An image trap unit(10) compensates changes of an image trap point caused by frequency changes. A tuning filter(20) is connected to a back end of the image trap unit(10), and filters a VHF band signal only by capacitors(C13-C17), inductors(L11-L16), and VCDs(VCD12,VCD13). The image trap unit(10) connects a cathode of a VCD(VCD11) coupled with other input line to a fixing capacitor(C11) coupled with a back end of an input terminal, and divergently connects a capacitor(C12) formed on a front end of the fixing capacitor(C11) as a stream line.