baber/WOPTO huggingface dataset:
Patent KR-20000043150-A (KR)
Title: Patch antenna capable of tuning a frequency and frequency-tuning method
Inventor: SHIN GWAN HO
IPC: H01Q13/08
Filed: 1998-12-28
Abstract: PURPOSE: A patch antenna capable of tuning a frequency is provided to optimize the impedance matching of a frequency through the adjustment of a use frequency by performing the impedance matching effectively by a reflection plate. CONSTITUTION: Plural slots(250) are located in a housing(210). A flat layer(220) is inserted into one of the plural slots(250) and irradiates a radio frequency signal. A feed slot layer(230) is fixed in the housing(210) and positioned on the lower side of the flat layer(220) in a certain interval. A reflection layer(240) is fixed in the housing(210) and positioned on the lower side of the feed slot layer(230). The flat layer(220) receives the radio frequency signal from the feed slot layer(230) to be irradiated to air. The reflection layer(240) reflects undesired signals transmitted from the feed slot layer(230).
Patent KR-20000043182-A (KR)
Title: High voltage generator
Inventor: KIM JONG DEOK
IPC: G11C11/407
Filed: 1998-12-28
Abstract: PURPOSE: A high voltage generator is provided to effectively perform an action even at a low voltage by increasing a high voltage pumping level up to three times of outer power voltage. CONSTITUTION: A capacitor within a pre charge device is discharged and a capacitor is charged by a pulse control signal of logic-high level. The potentials of a first and a second pre charge node are converted low and high. An NMOS transistor is turned to pre charge the first pre charge node as an outer power voltage level. In initializing a third boosting node as a Vext-Vt level, the NMOS transistor inside a level-up device(50) is turned on. The outer source voltage is supplied to the third boosting node, and the potential of the third boosting node keeps a 2Vest-Vt level. The pumping device(30) increases the potential of a first boosting node up to a 3Vest-Vt level by receiving a ring oscillator output signal of logic high level.
Patent KR-20000043484-A (KR)
Title: Mounting structure of escalator guard rail
Inventor: LEE CHAN GYU
IPC: B66B23/00
Filed: 1998-12-29
Abstract: PURPOSE: A mounting structure of escalator guard rail is provided to simplify the mounting work of a guard rail panel and prevent the damage of the guard rail panel. CONSTITUTION: A mounting structure of escalator guard rail comprises a moving knob(40) on upper portion thereof and a 'U' type supporting structure having a protrusion(32) formed on middle of the structure on lower portion thereof. The protrusion(32) is formed to form a groove for fitting the top portion of a guard rail panel(22) thereinto. An elastic component(50) is fitted on the protrusion(32) from upper direction to fix the top portion of a guard rail panel(22) having a compressed pad(24) inserted into the groove portion of the supporting structure(32). The elastic component(50) compresses both sides of the guard rail panel(22). Therefore the mounting structure prevents the damage of the guard rail panel.
Patent KR-20000043547-A (KR)
Title: Method for forming gate electrode of semiconductor device
Inventor: GONG PHIL GU
IPC: H01L21/336
Filed: 1998-12-29
Abstract: PURPOSE: A method for forming a gate electrode of a semiconductor device is provided to improve reliability of a gate electrode or a gate insulating layer by preventing diffusion of fluorine atoms to the gate insulating layer within a tungsten silicide. CONSTITUTION: A method for forming a gate electrode of a semiconductor device comprises the following steps. A gate insulating layer, a doped polysilicon layer(11), a diffusion barrier(12), a conductive layer(13), and a hard mask layer(14) are deposited sequentially on a semiconductor substrate. A photoresist pattern is formed on an upper portion of the hard mask layer. The exposed hard mask layer, conductive layer, and diffusion barrier are patterned sequentially by using the photoresist pattern as a mask. The photoresist pattern is removed. The doped polysilicon layer is patterned by using the patterned hard mask layer, conductive layer, and diffusion barrier as the mask. In the steps of patterning the conductive layer, an etching rate of the conductive layer by the etching rate of the diffusion barrier is about 1/20 to 1/30.
Patent KR-20000045103-A (KR)
Title: Device for heating load box of dump truck using exhaust heat of engine
Inventor: LEE SANG HEE
IPC: B60P1/00
Filed: 1998-12-30
Abstract: PURPOSE: A heater of a load box in a dump truck is provided to prevent a freezing of load by heating the load with an exhaust heat with supplying the exhaust heat of the engine into a heating pipe installed in the load box. CONSTITUTION: A air stored in an air tank is flowed in a pneumatic cylinder(68) by an operation of a pneumatic valve and the pneumatic cylinder(68) is extended. The extension of the pneumatic cylinder(68) operates a driving arm(74) in an opening and closing valve of inducing pipe connected with a piston(70) of the pneumatic cylinder(68) by a rotating shaft. A rotation of the driving arm(74) flows an exhaust gas of an engine into a heating pipe through the inducing pipe(50) by rotating an opening and closing film(78). When the inducing pipe(50) and a sucking valve of exhaust gas are separated each other by lifting a load box, a driver turns off a switch. When a signal outputted from a temperature sensor is not inputted into a controller by turning off the switch, the controller does not output the operating signal of valve and the exhaust gas is not flowed in the heating pipe. The exhaust gas of the engine flowed in the heating pipe heats the load box of a truck not to freeze an aggregate.
Patent KR-19990037700-A (KR)
Title: 변환 발진 신호가 분수 n-위상-시프트 제어 루프에 의해 합성되는 전송 방법
IPC: H04H20/72
Filed: 1996-08-24
Abstract: 전송 방법에 있어서,  입력 신호로부터 형성된 전송 신호는 수신 유니트로 전송되고 발진 신호에 의해 출력 신호로 변환된다.  전송 신호의 출력 신호로의 변환은 출력 신호가 그 주파수 위치에 따라 발진 신호의 위상 잡음에 의해 상이한 정도로 왜곡되는 수신 기술로 행해진다.  발진 신호는 기준 주파수가 두 개의 합성가능한 발진 주파수 사이의 최소 가능 주파수 분리를 나타내는 래스터 주파수의 정수배와 동일한 기준 신호로부터 분수 N 위상 동기 루프에 의해 합성된다. 발진 신호의 주파수 스펙트럼의 가상 라인의 형태로 발생하는 위상 잡음은 출력 신호에 대하여 왜곡 영향을 미치지 않거나 최소한 아주 미미한 왜곡 영향을 미치는 주파수 범위에서 래스터 주파수를 적절히 선택함으로써 놓여진다.
Patent KR-19990067127-A (KR)
Title: 냉장고용 얼음제조장치
IPC: B65D43/00
Filed: 1997-08-26
Abstract: 냉장고용 얼음제조장치는 물공급 탱크(7) 및 프레임부(8)를 포함하는 바, 상기 물공급탱크(7)는 탱크 본체(15) 및 뚜껑체(16)로 구성되며, 해당 뚜껑체(16)의 측벽(19) 상부 외주면(19a)상에는 씰링부재(20)가 단단히 고정되고, 상기 탱크 본체(15)의 측벽 내주 상단부에는 경사면(17)이 형성되어 있다. 상기 프레임부(8)는 탱크 취부부(22) 및 펌프 안취부(23)를 포함하는 바, 상기 탱크 취부부(22)는 기저판(34)과 해당 물공급 탱크(7)의 배출관(27)에 연결된 연결관 부재(35)를 갖는다. 뚜껑체(16)의 측벽(19)은, 별도의 잠금부재 없이 공간, 공정수 및 부품수를 줄이지 않고, 물공급 탱크 체적을 제한하지 않고서도 쉽게 조립상태로 안내되어 탱크 본체(15)와 결합된다.
Patent KR-19990077039-A (KR)
Title: 폴리(에틸렌 2,6-나프탈레이트)의 제조
IPC: C08J3/12
Filed: 1996-12-31
Abstract: 본원에서는 저분자량 폴리(에틸렌 2,6-나프탈레이트)의 신규한 결정형에 대해 개시한다.  본 결정형은 용융상 또는 유리상 저분자량 폴리(에틸렌 2,6-나프탈레이트) 물질에 또는 물질로부터 열을 고속 전달하여 이들 물질로부터 제조될 수 있다.  폴리(에틸렌 2,6-나프탈레이트) 조성물은, 보다 고분자량의 중합체를 제조하기 위한  고체상 중합화에 대한 개시 물질로 적합하다.
Patent KR-20000016125-A (KR)
Title: Metallocenes and catalysts for polymerization of olefins
Inventor: RESCONI LUIGI
IPC: C07F17/00
Filed: 1998-03-27
Abstract: PURPOSE: A polymerizing method for an olefin is provided to be formed by polymer-reacting more than 1 olefin monomer in the presence of a catalyst system. CONSTITUTION: It is disclosed a new class of bridged metallocene compounds of formula (I) wherein R1 and R2 can be hydrogen, alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl radicals; R3 and R4 form a condensed, 5- to 8-membered, aliphatic, aromatic or heterocyclic ring; M is a transition metal of groups 3, 4, 5, lanthanide or actinide; X is hydrogen, halogen, -R, -OR, -OSO2CF3, -OCOR, -SR, -NR2 or PR2, wherein R is a hydrocarbon substituent; and p is 0-3. Furthermore, a catalyst system for olefin polymerization based on the above bridged metallocene compounds and the ligands for their preparation are disclosed.
Patent KR-20000016521-A (KR)
Title: Actinic radiation source having anode that includes window area formed by thin, monolithic silicon membrane
Inventor: NEUKERMANS ARMAND P
IPC: H05H6/00
Filed: 1997-06-11
Abstract: PURPOSE: An improved thin membrane window that permits an electron beam, originating in a vacuum, to penetrate into medium present on a non-vacuum environment side of the window, and a source of actinic radiation that is simple, durable and reliable, are provided. CONSTITUTION: An actinic radiation source includes an anode(36) upon which an electron beam form a cathode ray gun impinges. The anode includes a window area(52) formed by a silicon membrane. The electron beam upon striking the anode permeates the window area to penetrate into medium surrounding actinic radiation source. A method of making an anode uses a substrate having both a thin first layer(44) and a thicker second layer(46) of single crystal silicon material between which is interposed a layer of etch stop material(48). The second layer is anisotropically etched to the etch stop material to define the electron beam window areas in the first layer. That portion of the etch stop layer exposed by etching through the second layer is then removed. The anode thus fabricated has a thin, monolithic, low-stress and defect-free silicon membrane electron beam window area provided by the first layer of the substrate.
Patent KR-20000022293-A (KR)
Title: Device and method for recording program
Inventor: NAKAMURA HITOSHI
IPC: H04N5/782
Filed: 1998-04-24
Abstract: PURPOSE: A TV set having a hard disk drive is possessed to record the wanted program from beginning to end simply and certainly. CONSTITUTION: A TV set has a hard disk drive instead of a magnetic tape to record a program. Video signals and audio signals of a received program are constantly recorded on a hard disk. When a command for program storage is provided, information of a present time and a channel are inputted and then a start time and an end time of the program is output. Also a rewrite of a recorded area on the hard disk is inhibited, and the program are stored on the hard disk retroactively within a range not exceeding a predetermined time period. The program is recorded on the hard disk up to an output end time of the program.
Patent KR-19990046245-A (KR)
IPC: E02B3/14
Filed: 1999-01-08
Abstract: 본 발명은 수중구조물의 기초부분 세굴방지와 피복″메트″설치를 위한 ″콘크리트메트″시공에서 4~20개의 콘크리트 이형블럭(0. 5 ~20TON)을 ″U볼트″와 고리로 연결된 ″콘크리트블럭메트″의 수중설치시 필요한 달아올림틀에 관한 것이다. 
     지금까지의 시공방법은 콘크리트 이형블럭을 1개씩 수중에서 잠수부에 의하여 근접조립과 ″U볼트″로 연결하고 있으나, 이형블럭이 중량물이어서 수중작업시 안전사고의 위험과 조립이 어렵고 시공성을 보장할 수 없는 등 불확실한 시공방법이였다. 
     본 발명은 상기와 같은 문제점을 해결하기 위하여 선 출원된(98.1.12 특허출원 제1602호) ″콘크리트블럭메트에 의한 세굴방지공의 시공방법과 연약지반 보강 방법″에서 ″도면의 주요부분에 대한 부호 설명″ (9) ″크렌″보조 ″빔″에 대한 명칭을 달아올림틀로하고 ″와이어로프″를 걸고리에서 벗길때 각 개소 전부를 인력으로 벗기지 않고 반자동화하여 ″크렌″조종원이 보조 ″와이어″를 작동시켜 6~25개소의 걸고리에서 ″시린더″ 작동에 의하여 동시에 ″와이어로프″를 낙하시킬 수 있는 구조를 특징으로 하는 것이다.
Patent KR-20000005566-A (KR)
Inventor: OTAJIMA WATARU
IPC: G11B7/12
Filed: 1999-01-19
Abstract: PURPOSE: An optical disk device is provided to remove an offset due to an assembly error and to modify the offset with only optical detector of any one optical system. CONSTITUTION: An optical disk device reads an information from a track with making a condensed optical-beam spot to follow the track on the basis of a tracking error signal which is induced from an optical system for detecting the tracking error. The optical system for detecting the tracking error includes an optical device having an optical detector(136) which outputs a differential value of a plurality of light receiving elements(136a, 136b) as the tracking error signal. The light receiving elements receive an optical-beam condensed by a condensed lens(128). An optical element enlarges the amount of light, which is decreasingly received in the light receiving element according to the displacement of an optical-beam axis, relatively to the amount of light which is increasingly received in the light receiving element according to the displacement of the optical-beam axis. Thereby, the offset, which is due to an axis displacement of an object lens, inclination of an object, and an assembly error of the optical system, is reduced.
Patent KR-19990068029-A (KR)
Title: 복수의 메모리 모듈과 제어기를 구비한 데이터 고속 전송 시스템
IPC: G06F13/42
Filed: 1999-01-20
Abstract: 메모리 모듈(2)과 1개의 제어기(3)가 배열되고 이 배열을 따라 왕복하도록 2개의 클럭 배선(4A, 4B)이 설치되어 있다.  클럭 배선(4A, 4B)의 왕로(往路) 부분을 통해 제1 기본 클럭 TCLK 및 그 2배의 주기를 갖는 제2 기본 클럭 TCLK2가 메모리 모듈(2) 및 제어기(3)에 공급되고, 턴어라운드 포인트를 통과한 후의 복로(復路) 부분을 통해 전송되는 제1 및 제2 기본 클럭은 RCLK, RCLK2로서 메모리 모듈(2) 및 제어기(3)에 공급된다.  순방향 제1 및 제2 기본 클럭 TCLK, TCLK2 및 역방향 제1 및 제2 기본 클럭 RCLK, RCLK2는 메모리 모듈(2) 및 제어기(3)에 입력되고 이들 클럭에 동기하여 데이타의 입출력이 제어된다.
Patent KR-20000056111-A (KR)
Inventor: LEE IL YOUNG
IPC: B65B55/00
Filed: 1999-02-09
Abstract: PURPOSE: A bending pad is provided to protect goods at a low cost and with easy. CONSTITUTION: A bending pad(2) for protecting goods comprises a horizontal piece and a vertical piece(18) bent in a direction perpendicular to the horizontal piece, wherein a portion of the horizontal piece is cut by a pair of blades to form a plurality of cut portions(16) spaced apart from each other by an equal distance and the remain forms a plurality of cut spaces(26), and the vertical portion(18) is formed with a plurality of punched portions for facilitating bending work the bending pad. In such a bending pad(2), it is easy to handle the bending pad(2)
Patent KR-20000056649-A (KR)
Inventor: JO JUN RAE
IPC: H03M7/00
Filed: 1999-02-24
Abstract: PURPOSE: A binary code decoder is provided to reduce the number of bits of an analog-digital converter used in the decoder. CONSTITUTION: In a binary code decoder, a digital-analog converter(130) converts a binary code value which has been previously decoded into an analog signal. A subtracter(140) subtracts the converted analog binary code value from an encoded analog binary code transmitted from a channel. An analog-digital converter(150) converts the result of the subtracter into a digital signal to output an N-bit digital signal. The output signal of the analog-digital converter is inputted into a decoder(120). The decoder storing a decoding table outputs an L-bit binary code corresponding to the N-bit digital value with reference to the decoding table. The L-bit binary code is sent to a counting part(70) consisting of a plurality of counters. A binary code determining part(80) outputs "1" when the value of the leftmost counter(7L) of the counting part is larger than L/2 and outputs "0" when the value of the leftmost counter is smaller or identical than or to L/2.
Patent KR-20000059401-A (KR)
Inventor: KIM HO GI
IPC: H02K5/00
Filed: 1999-03-03
Abstract: PURPOSE: A rotor fixing apparatus is provided to ensure easy coupling between a shaft and a rotor of a motor by using U shaped groove and a spring pin. CONSTITUTION: A shaft(60) is provided in the outer diameter with at least three U shaped grooves, and a rotor(50) is provided in the inner diameter with overturned U shaped grooves in corresponding positions. In positions where the U shaped grooves and the overturned U shaped grooves meet, a circular spring pin opened in one side is received. The grooves on the shaft(60) and the grooves on the rotor(50) are aligned together to form a tube. The circular spring pin opened in one side is inserted into the tube to complete coupling.
Patent KR-19990077983-A (KR)
IPC: H01M50/503
Filed: 1999-03-17
Abstract: 본 발명은, 전지, 그 전지의 외측표면에 병렬식 저항용접법으로 용접된 전지간 접속용 리드재 및 그것을 사용한 전지팩에 관한 것으로; 본 발명의 목적은 전지용기의 외측표면에 병렬식 저항용접법으로 리드재를 용접한 경우 종래에 비해 통전되는 전류가 적어도 양자간의 용접강도가 높으며 더욱이 그 흐트러짐도 적어지는 전지와 리드재를 제공하는 것 등이며; 상기 목적을 달성하기 위해서, 본 발명은, 전지용기의 외측표면의 일부 또는 전부에, Ni 기합금으로 이루어진 도금층이 형성되어 있는 전지, 전지의 외측표면에 병렬식 저항용접법으로 용접되고, 또한 기재, 및 그 기재중 적어도 상기 전지의 외측표면에 용접되는 쪽 표면에 형성되어 있는 Ni-Sn계 합금층으로 이루어진 것을 특징으로 하는 전지간 접속용 리드재, 및 복수개의 전지를 병렬식 저항용접법에 따라 전지간 접속용 리드재로 서로 접속시킨 전지군이 외장용기의 가운데에 내장되어 있으며, 또한 상기 전지가 상기한 본 발명의 전지이며, 아울러 상기 전지간 접속용 리드재가 상기한 본 발명의 전지간 접속용 리드재인 것을 특징으로 하는 전지팩 등을 제공한다.
Patent KR-19990077988-A (KR)
Title: 자기기록매체및그의제작방법
IPC: G11B5/725
Filed: 1999-03-18
Abstract: 각종 사용 조건 하에 우수한 윤활성을 보유할 수 있고, 장시간 동안 윤활 효과를 지속할 수 있으며, 우수한 주행성, 내마모성 및 내구성을 가질 수 있는 자기 기록 매체를 제공한다.  본 발명에 따른 자기 기록 매체는 비자성 지지체; 및 적어도 자성층을 갖고, 윤활제로서 하기 화학식 1의 모노에스테르 모노카르복실산을 함유하는, 상기 비자성 지지체 상에 형성된 박막층을 포함한다. 
     
       
         
       
     
     (상기 식에서, R 1 은 지방족 알킬기 또는 지방족 알케닐기이고, R 2 는 플루오로알킬기, 플루오로알케닐기, 지방족 알킬기 또는 지방족 알케닐기이며, n은 0 또는 양의 정수이다.)
Patent KR-20000060766-A (KR)
Inventor: YOO DONG IN
IPC: B60R16/02
Filed: 1999-03-19
Abstract: PURPOSE: A structure of a wire ring protector of a vehicle is provided to make the tolerance management easy and to prevent the movement by separating a mount plate of the protector from a body and by changing the structure variable by the mounting plate and to prevent the vertical movement and the breakaway of the mounting plate by providing a moving path of the mounting plate. CONSTITUTION: A structure of a wire ring protector of a vehicle includes an upper plate(12), a body(10) mounted at the lower portion of the upper plate and having a guide rail(24), a guide(20) disposed at the right side of the body and a mounting plate(26) separated from the body and fit connected into the guide rail in a laterally movable manner. The guide has a jaw(22) formed at the end to prevent the breakaway of the mounting plate.
Patent KR-20000061670-A (KR)
Inventor: JUNG CHUNG SIK
IPC: H04N9/29
Filed: 1999-03-30
Abstract: PURPOSE: A degaussing circuit and driving method thereof are provided to secure a stability of a TV set, control a degaussing time, and improve image quality by using a rectifying circuit as a part of degaussing circuit. CONSTITUTION: The degaussing circuit comprises a degaussing portion(22) for degaussing a shadow mask magnetized along an earth magnetism direction, a charging portion(26) for controlling a current capacity applied to the degaussing portion and performing a smoothing function, a rectifying portion(24) for applying a direct current to the charging portion, and a relay driving portion(36) for switching a current passage of the degaussing portion. In the circuit, the degaussing portion is comprised of a resistor for restricting an input current capacity, and a degaussing coil connected with the resistor to degauss the shadow mask. A method for driving the circuit comprises steps of determining whether a TV set is turned on or off, performing a degaussing process when the TV set is turned on, determining whether the degaussing process is completed, and stopping the degaussing process when the degaussing process is completed and then supplying a power source to a TV circuit.
Patent KR-19990082861-A (KR)
Title: 카드 처리 기능을 구비한 키보드 장치 및 그 제어방법
IPC: H03M11/14
Filed: 1999-04-02
Abstract: 본 발명은 하나의 PS/2 라인을 통해 키보드 데이타 전송 뿐만아니라 스마트 카드의 판독데이타도 전송할 수 있는 카드 처리 기능을 구비한 키보드 및 그 제어방법에 관한 것으로, 본 발명에 따른 키보드는 문자키, 숫자키, 및 다수의 기능키를 구비하고 각각의 키에 대응하는 키코드를 발생시키는 키매트릭스와, 카드삽입유무를 감지하고, 삽입된 카드에 기록된 데이타를 판독하는 카드홀더와, 상기 카드홀더의 동기용 클럭신호를 제공하는 클럭발생부와, 상기 키매트릭스로부터 발생된 키코드를 출력하면서, 외부로부터 카드처리명령요구시 상기 카드 홀더를 동작시켜 판독된 카드데이타를 장치로 전송하는 제어기로 구성되고, 그 동작은 일정주기마다 키매트릭스로부터 키코드를 전송하면서, PC로부터의 명령을 체크하여, 카드처리명령이 있으면 키코드 전송전에 카드홀더를 동작시켜 입력되는 카드판독데이타를 먼저 전송하도록 하거나, 카드홀더내의 카드 존재유무를 체크하여, 카드가 존재할때, 카드판독데이타나 키코드를 전송하고, 카드홀더내 카드가 존재하지 않으면, 이에 해당하는 코드를 발생시킨다.
Patent KR-20000049301-A (KR)
Inventor: SASAKI MASAYOSI
IPC: C02F11/12
Filed: 1999-04-13
Abstract: PURPOSE: A method for dewatering sludge is provided, which is characterized in that a device for forming floc, a device for separating solid and water, and a belt press are provided. CONSTITUTION: Sludge flows into a reaction tank(31), and settled in the settling pond(33). Settled sludge is transferred to mixing tank(40) wherein a device for forming floc(39). A coagulating agent is added, and mixed by a mixer(41). Flocculated sludge is dewatered by the separating device(59) and concentrated. Then, concentrated sludge is transferred to the belt press(42), so sludge cake(E) is formed. Sludge after the dewatering process is separated by a scraper(66)from the belt(65). A concentration tank, a storage tank, and a centrifugal separator are not necessary.
Patent KR-19990083243-A (KR)
Title: 파일럿신호전송기술과이러한전송기술을이용하는디지털통신시스템
IPC: H04L27/34
Filed: 1999-04-16
Abstract: 육지 이동 무선 시스템과 같은 디지털 통신 시스템에서는, 페이딩 왜곡이 높은 정밀도로 보상된다. 전송기에서는, 파일럿 신호들이 정보 신호들내에 규칙적으로 삽입된다. 파일럿 신호들의 진폭은 정보 신호들의 최대 가능한 진폭보다 더 크게 설정된다.  파일럿 신호들의 변조 방식은 정보 신호들의 변조 방식과는 다른다. 수신기에서는, 파일럿 신호들의 각 신호의 페이딩 왜곡이 결정된다. 정보 신호들의 페이딩 왜곡은 파일럿 신호의 페이딩 왜곡을 이용하여, 보간에 의해 계산된다. 그리고 보상된다. 정보 신호내의 각 신호의 주파수 밴드는 0.1에서 0.4까지의 롤-오프(roll-off) 계수를 가지는 롤-오프 필터로 제한된다.
Patent KR-20000067233-A (KR)
Title: Microwave oven
Inventor: MYUNG SUN HWAN
IPC: F24C7/02
Filed: 1999-04-26
Abstract: PURPOSE: A microwave oven is provided to reduce noise from a fan and achieve an improved cooling efficiency for a magnetron and a high voltage transformer. CONSTITUTION: A microwave oven comprises a casing(1) consisting of a cooking chamber(9) and a component chamber(10) having an air inlet hole formed at a wall of the component chamber, and a blower device(20) installed within the component chamber so as to blow the air flowing through the air inlet hole of the component chamber into the component chamber. The blower device further comprises a radial flow fan(21) operating by a driving motor(23) so as to blow radially the air flowing through the air inlet hole, and a fan casing(25) surrounding the radial flow fan and which has one or more outlet openings(41,43) for discharging the air from the radial flow fan in a predetermined direction.
Patent KR-20000067634-A (KR)
Inventor: KIM CHIL MIN
IPC: G09C5/00
Filed: 1999-04-30
Abstract: PURPOSE: An apparatus for generating hash using chaos meter and its method are provided to use all variables of chaos signal to hash value generated in chaos meter, by inputting the information signal converted to real number or fixed number as a variable, coefficient or exterior signal of chaos meter and by feedbacking the information signal. CONSTITUTION: An apparatus for generating hash using chaos meter comprises a chaos meter(30), a data convertor(10), a modulator(20) and a comparator(40). The chaos meter(30) generates the chaos signals of at least one or more connecting to the variables or coefficients of at least one or more each other electrically and including the information signal. The data convertor(10) converts the inputted information signal to the real number or ASCII code. The modulator(20) includes a scaler and modulates the chaos signal of at least one or more to the information signal which is converted to the real number or ASCII code and feedbacks to the variables, coefficients or exterior signal of the chaos meter. The comparator(40) logically operates the chaos signal outputted from the chaos meter(30) and the inputted information signal in bit unit and feedbacks to the modulator(20) when the information signal is inputted continuously, and outputs all variables value of the chaos signal outputted from the chaos meter(30) as the hash value when the information signal is not inputted.
Patent KR-20000072847-A (KR)
Inventor: YANG DONG UK
IPC: G06F1/16
Filed: 1999-05-01
Abstract: PURPOSE: A LCD monitor, a vesa cover and a fixing structure are provided for engaging a plurality of engaging screws to a stud through a plurality of first and second through holes for thereby integrally engaging a vesa cover to the rear surface of the rear cover. CONSTITUTION: A LCD monitor(10) includes a front cover(11), a rear cover(30) integrally engaged with the front cover(11) for thereby forming an outer structure of the LCD monitor(10), a LCD panel(13) engaged between the rear cover(30) and the rear cover(30) for displaying a character or symbol, a front bracket(12) for supporting the front portion of the LCD panel(13), a rear bracket(14) for supporting the rear portion of the LCD panel(13), a main PCB(15) for electronically driving the LCD panel(13) by applying an electrical signal to the LCD panel(13).