baber/WOPTO huggingface dataset:
Patent KR-20030070528-A (KR)
Title: Antibacterial goods and method of the same
Inventor: KIM SANG CHEOL
IPC: B29C45/00
Filed: 2002-12-30
Abstract: PURPOSE: An antibacterial article and a manufacturing method thereof is provided to reduce a manufacturing time and process by omitting the coating process of an antibacterial material. CONSTITUTION: A method for manufacturing an antibacterial article comprises the steps of : mixing a raw material and an antibacterial material(S100); preparing a nozzle die and a mold for article formation(S110); extruding or injecting the mixture of the raw material and the antibacterial material in the nozzle die and the mold(S120); and drying the antibacterial article molded by the extrusion or the injection(S130). The raw material, Silicone, Polyurethane, Polyethylene, Polypropylene, PolyvinylChloride, Latex, Acrylonitrile-Butadiene-Styrene, PolyCabonate, and Polytetrafluoroethylene, and the antibacterial article are mixed in a ratio of 90-99.99W% to 0.01-10W%.
Patent KR-20020026941-A (KR)
IPC: E04H4/06
Filed: 1999-12-21
Abstract: 본 발명은 팽창 그리드에 관한 것으로, 여러 개구부들에 그물이 장착되고, 이들 그물은 장치 밑에 빠진 사람들을 위로 구조하고 진공청소기를 삽입하여 수영장 바닥을 쉽게 청소하기 위해 여닫힐 수 있다. 상기 그리드는 수영장에서 일방향 시스템을 구비한 사이드레일들에 연결될 수 있는 호이스팅 수단에 연결되어 있어, 높은 위치로 고정될 수 있다.
Patent KR-20020022792-A (KR)
IPC: A61P19/10
Filed: 2000-07-11
Abstract: 본 발명은 화학식 I의 화합물에 관한 것이다. 
     화학식 I 
     
       
     
     상기 화학식에서, 
     R은 수소이거나, (C 1 -C 3 )알킬, F 및 페닐로부터 선택된 하나 이상의 그룹에 의해 임의로 치환된, (C 1 -C 6 )알킬, 페닐 또는 (C 7 -C 9 )아르알킬이고; 
     n은 0, 1 또는 2의 값을 갖는 정수이고; 
     X는 하이드록시 또는 할로겐이다.
Patent KR-20020079725-A (KR)
IPC: H04L12/413
Filed: 2000-09-01
Abstract: 사용자 데이터의 전송을 위해 업스트림 대역폭을 예약하는데 사용되는 요청들의 경쟁-기반 전송을 위한 HFC 케이블 네트워크의 업스트림 채널에서 대역폭을 할당하는 문제점은 예약 요청들의 보급되는 제공된 로드에 동적으로 적응하는 할당 방법에 의해 해결된다.  한 실시예에서, 이는 각 프레임 내에서 데이터 전송을 위한 슬롯들의 수요 및 공급에 관련된 균형식에 대한 해에 기초하는 유동적 근사 방법을 사용하여 전반적인 가상 데이터 큐에서 사용자 데이터의 흐름 비율의 균형을 맞추도록 시도함으로서 각 업스트림 전송 프레임에서 경쟁 간격에 적절한 사이즈를 결정하여 행해진다.
Patent KR-20020057974-A (KR)
Title: Probe for a circuit board tester
IPC: G01R1/073
Filed: 2000-09-05
Abstract: A probe for a circuit board tester as well as to an adapter and a circuit board tester. The probe comprises a needle and a sleeve, the needle being shiflingly guided in the sleeve and the needle protruding at least 10 mm from the sleeve, more particularly more than 20 mm. In one embodiment, the needle is conically tapered to a contact tip at least in a portion protruding from the sleeve. With the probe in accordance with the invention, adapters for circuit boards can be produced comprising contacts in high-density, the probes simultaneously acting resiliently.
Patent KR-20020047328-A (KR)
Title: 항생제 술탐 및 술톤 유도 옥사졸리디논
IPC: A61K31/541
Filed: 2000-10-30
Abstract: 본 발명은 항생제로서 유용한 하기 화학식 I의 화합물을 제공한다. 
     <화학식 I>
Patent KR-20020068356-A (KR)
IPC: B60K6/22
Filed: 2001-09-25
Abstract: 전자회로가 있는 구동장치는, 회로의 솔리드배선(solid wiring)(Ss) 사이를 전기적으로 접속하는 플로트배선(float wiring)(Ws)을 가지고, 엔진에 기계적으로 연결된 전자회로(M)를 구비한다. 전자회로는, 그 플로트배선을 포함하는 평면(X-Z축방향 평면)이, 엔진의 출력축선(Y축)에 대하여 실질상 수직으로 배치되었다. 이로써 엔진의 주요(主要)한 X축이나 Z축방향의 진동이 플로트배선에 대하여 Y축방향에 가해지는 것을 막을 수 있고, 전자회로의 내진성(耐震性;seismic resistance)이 향상되고, 구동장치에 기계적으로 전자회로를 장착한 배치가 실현된다.
Patent KR-20020065536-A (KR)
IPC: H04L1/00
Filed: 2000-11-24
Abstract: 본 발명은 압축 모드에서 전송될 프레임 상에 비전송 비트를 표시하기 위한 방법에 관한 것이다.  압축 모드에서 TFCI 비트 보다 더 많은 TFCI 위치가 사용될 수 있다.  나머지 TFCI 위치도 비트로 채워서 가능한한 최대 성능을 달성하기 위해, 본 발명은 특히 다운링크에서, 압축 모드시 발생하는 전송 갭의 바로 다음에 오는 TFCI 위치가 DTX 비트로 채워지는 특징을 갖는다.
Patent KR-20020058044-A (KR)
Title: 커넥터
IPC: H01R13/514
Filed: 2000-05-24
Abstract: 수형 커넥터 및 암형 커넥터의 적절한 감합을 용이하게 하기 위해서, 본 발명에 의한 모듈형 커넥터는, 연결 가능한 커넥터를 연결 방향을 따라 연장하는 강성 지지판으로 규정한다. 모듈형 커넥터는, 하우징내의 접속 요소의 접촉부가, 당해 접촉부가 접촉하는 상대 단자의 삽탈 방향으로 비켜 놓아져 있는 것이 거의 균일하게 분포되어 있다. 그리고 하우징내의 각 접속 요소의 제1 단부가, 상기 하우징의 단차에 계합되는 것에 의해, 대향하는 탄성 접촉부가 넓어지는 방향으로, 그 단차로부터 미리 하중을 받고 있는 수형 커넥터는, 적어도 상기 복수 개의 접속 요소의 접촉면보다, 그 접촉면 방향으로 돌출하고 있고, 접속 요소와 접속 요소와의 사이에 설치되는 돌출부를 가진다.
Patent KR-20020086863-A (KR)
Title: 거의 수평인 회전축을 중심으로 회전하는 물체의 회전절대각을 결정하기 위한 방법 및 장치
IPC: B60R21/013
Filed: 1999-12-16
Abstract: 본 발명에 따라 종축을 중심으로 회전하는 자동차의 회전 절대각이 결정된다.  이를 위해, 회전각 변화(△α)는 회전율 검출 센서의 출력 신호를 적분함으로써 검출된다.  가속 검출 센서는 자동차의 수직축 방향으로 작용하는 가속 성분(A)을 검출하는데 사용되고, 회전각 변화(△α)에 따른 가속 성분의 변화(△a z )가 검출된다.  또한 연산 장치는 회전각 변화(△α) 및 상기 회전각 변화(△α)에 따른 가속 성분의 변화(△a z )로부터 자동차의 절대각(α)을 산출한다.
Patent KR-20020074187-A (KR)
Title: Broadcast pause and resume for enhanced television
IPC: H04N9/804
Filed: 2001-01-18
Abstract: A transmitter (1112) transmits video and enhanced content to a receiver (1114) for showing on a display (1116), while synchronism can be provided between the content and video (1118) and video may be stored (1120). The enhanced content may be replaced if it was previously activated during the original play or the original video information may be played, while the user can select viewing of the enhanced content during the replay. Independent claims are included for a medium storing program instructions and for a system.
Patent KR-20020076325-A (KR)
IPC: C09K21/10
Filed: 2000-08-18
Abstract: 본 발명에 따라, 산 수용체로서 산화 칼슘의 존재하에 디-(2,6-자일릴)클로로포스페이트와 같은 입체 장애 디아릴 클로로포스페이트를 2개 이상의 염기성 N-H 기를 포함하는 염기성 질소 화합물, 바람직하게는 피페라진과 같은 헤테로환식 화합물과 반응시킴으로써 N,N'-비스[디-(2,6-자일레녹시)포스피닐]피페라진과 같은 입체 장애 포스포아미데이트를 제조한다.  이 반응은 1종 이상의 2극성 비양성자성 용매의 존재하에 수행된다.
Patent KR-20020077501-A (KR)
IPC: C08L69/00
Filed: 2001-02-12
Abstract: 본 발명은 특정 그래프트 중합체의 중합체 조성물에 관한 것인데, 상기 중합체의 제조 동안, 정해진 입자 직경을 갖는 시드 라텍스 입자를 사용하는 시드 중합 반응에 의하여 수득한 고무를 사용한다.
Patent KR-20020093860-A (KR)
Title: 식도 괄약근 컴플라이언스를 측정하기 위한 장치
IPC: A61B10/00
Filed: 2001-03-27
Abstract: 이 장치(10)는 하부 식도 괄약근(21)(LES)를 측정하기 위해 개시되었으며, 이 장치는 LES의 컴플라이언스를 측정하고 식도를 자극하기 위하여 배치되는 복수의 신장가능부재(28,30,32)를 갖는 카테테르(12)를 포함하여서, LES 컴플라이언스의 보다 임상적으로 관련있는 측정값을 얻도록 LES를 이완시키게 된다.  일 실시예에서, 복수의 신장가능부재는 식도 운동성을 일으키도록 식도 내에 위치되어 팽창되는 제1 풍선(28), LES내에 위치되는 제2 비탄성 풍선(30), 및 제2 풍선을 LES와 정렬시키는데 도움을 주도록 위장(23)내에서 팽창되는 제3 풍선을 포함한다.  점진적으로 증가하는 공기의 용적이 제2 풍선내로 도입되어서, 이에 따라 LES에 의해 발휘되는 압력이 계산되어, LES의 상태를 평가하도록 표준값과 비교된다.
Patent KR-20040062222-A (KR)
Inventor: KIM JIN HO
IPC: A43C15/16
Filed: 2003-01-02
Abstract: PURPOSE: A spike for a golf shoes is provided that a golf field and a floor of a club house is prevented from being damaged while not only abrasion and damage are less but also endurance and shock resistance are superior. CONSTITUTION: The spike equipped to the bottom of a golf shoes to generate a friction force comprises: a plurality of flexible angular parts which are arranged in a radial direction along the outer surface of the spike body(7) outwardly; and a plurality of supporting angular parts(2) protruding outwardly from the outer surface of the plurality of flexible angular parts respectively. When the plurality of flexible angular parts are bent outwardly by the weight of user the plurality of supporting angular parts(2) become contacted to the bottom to the golf shoes thereby to adjust the degree of being bent of the plurality of flexible angular parts.
Patent KR-20040066462-A (KR)
Title: Method for producing feed containing components of wild mountain ginseng, and meats and eggs produced therefrom
Inventor: KWON O TAE
IPC: A23K1/00
Filed: 2003-01-18
Abstract: PURPOSE: A method for producing feed containing components of wild mountain ginseng, and meats and eggs produced therefrom are provided, thereby reusing the wild mountain ginseng cultured medium as a by-product in the feed, so that domestic animals can easily absorb healthful components of wild mountain ginseng. CONSTITUTION: The method for producing feed containing components of wild mountain ginseng comprises the steps of: heating the wild mountain ginseng cultured medium to prepare a concentrate of medium; mixing grain powder of corn, wheat, crushed rice, vegetable sesame dregs and rice bran with fish powder; adding vitamins and minerals into the concentrate of medium; mixing the mixture of grain powder and fish powder with the concentrate medium with vitamins and minerals and kneading the mixture; shaping feeds by press-molding the dough and drying the shaped feeds.
Patent KR-20030011146-A (KR)
Inventor: KIM HYO DEOK
IPC: H04B1/40
Filed: 2003-01-21
Abstract: PURPOSE: A cellular phone auxiliary equipment using Bluetooth is provided to receive video and audio data in the cellular phone using Bluetooth and reproduce the received data, and to store video and audio data transmitted from the cellular phone in an external computer and receive power from a computer for charging. CONSTITUTION: A body housing has a keypad(12). A display part(13) formed on one side of the front of the housing displays video information. An audio part(18) formed in the housing reproduces audio information. The second Bluetooth module(15) built in the housing receives video and audio data received to a cellular phone(1) and transmitted in RF(Radio Frequency) signals through the first Bluetooth module(2). A control unit(16) receives the video and audio data from the second Bluetooth module(15) to reproduce the delivered data through the display part(13) and the audio part(18). A USB(Universal Serial Bus) port(19) arranged in one side of the housing interfaces with an external computer for storing the video and audio data. And a charging part(21) receives voltage applied from a power terminal of the USB port(19), transforms the voltage then applies the transformed voltage to a battery.
Patent KR-20040069506-A (KR)
Title: Field emission device, display adopting the same and manufacturing thereof
Inventor: CHOI JUN HUI
IPC: H01L21/00
Filed: 2003-01-29
Abstract: PURPOSE: A field emission device, a display adopting the same and manufacturing thereof are provided to prevent effectively a modification of a mesh grid and to achieve a high definition picture by preventing structurally a creation of a stray electron. CONSTITUTION: A field emission display device comprises an anode plate(200) having a fluorescent material layer(203) at an inside and an anode electrode(202) on a front plate(201); a cathode plate(100) having an electron emission source(104) for emitting electrons on a rear plate(101) in opposition to the fluorescent material layer and a field emission array(FEA) including a gate electrode(105); a mesh grid(400) adhered closely to the field emission array on the rear plate and having an electron controlling hole in opposition to a gate hole; a tensile substance(500) for fixing the mesh grid to the rear plate and applying a tension to the mesh grid; a grid insulating layer(106) for insulating mutually with the mesh grid and the field emission array; and a spacer(300) located between the cathode plate and the anode plate.
Patent KR-20040070721-A (KR)
Inventor: KWON YEONG JIN
IPC: B62D5/08
Filed: 2003-02-04
Abstract: PURPOSE: A control valve of a power steering pump for a vehicle is provided to control the steering force stably and independently regardless of fluctuation of pressure according to driving speed by regulating the discharge amount of oil from a power steering pump accurately with a control valve placed in a fitting unit. CONSTITUTION: A control valve(200) of a power steering pump for a vehicle is composed of a valve body(210) having a cylindrical space part(211) opened at one side, an inlet(212) and an outlet(213) connected to both sides of the space part, and a return passage(214); a movable valve(220) inserted to the space part by inserting a spring(243); a connecting member(230) combined with the front of the space part; and an orifice(240) fitted to the center of the connecting member to regulate oil flowing into the inlet, and composed of a hollow guide(241), a slide valve(242) and an orifice spring(243). The movable valve is flattened by removing the protruded rod, and the connecting member is separably combined with the orifice.
Patent KR-20040071475-A (KR)
Inventor: SHIN IK HO
IPC: E04H9/14
Filed: 2003-02-06
Abstract: PURPOSE: A cutoff for an entrance of an underground passage is provided to prevent an inflow of rainwater to an underground passage, to cut off water and to make people pass through an entrance of an underground passage possible. CONSTITUTION: The cutoff for an entrance of an underground passage comprises channels installed vertically on both sides of a groove(19) formed on the bottom(7) of an entrance of an underground passage, a cutoff gate(11) installed on the channel to be reciprocated, a hydraulic cylinder connected to the cutoff gate to provide reciprocating force, and an air tube(15a) and a tube protector(15b) installed on the cutoff gate. The cutoff gate(11) is reciprocated by the hydraulic cylinder, and the air tube(15a) and the tube protector(15b) are adhered closely to an adhesive plate(29) of the groove(19) and the channels to seal up the reciprocated cutoff gate(11) to prevent the inflow of rainwater to an underground passage.
Patent KR-20040073693-A (KR)
Title: Cultivating solution of spirurina and cultivating method thereof
Inventor: JUN HYEONG JIN
IPC: C12N1/12
Filed: 2003-02-14
Abstract: PURPOSE: A cultivating solution of spirurina and a cultivating method thereof are provided, thereby reducing the amount of NaHCO3 and Na2CO3 added because charcoal added in the medium is an additional carbon source, so that the cultivation cost is reduced, and effectively removing impurities from the medium by adsorbing them to charcoal. CONSTITUTION: The cultivating solution of spirurina contains 50 to 200g of charcoal in 1 liter of the conventional cultivating medium for spirurina, wherein the charcoal is white charcoal; the charcoal is added into the medium in order to control pH of the cultivating medium to 10 or more. The method for cultivating spirurina comprises adding 50 to 400g of charcoal into 1 liter of the conventional cultivating medium for spirurina in order to control pH of the medium and culturing the spirurina.
Patent KR-20040076723-A (KR)
Inventor: KIM SANG U
IPC: G01C23/00
Filed: 2003-02-26
Abstract: PURPOSE: A method for automatically outputting a K factor according to vehicles is provided to shorten a working time for controlling a dip switch by automatically calculating the K factor according to vehicles. CONSTITUTION: A method for automatically outputting a K factor includes the steps of inputting variables required for calculating the K factor according to a product number of a vehicle(400), calculating the K factor according to each product number by calculating variables inputted according to the product numbers based on the K factor calculating formula(420), converting each K factor into dip switch controlling values(430), and printing the K factor calculated according to the product number and dip switch controlling values on a paper(450).
Patent KR-20040080778-A (KR)
Inventor: LEE CHUNG HYO
IPC: G02F1/1335
Filed: 2003-03-13
Abstract: PURPOSE: A four color driving LCD(Liquid Crystal Display) and a panel used in the same are provided to improve an aperture ratio by forming color filters on a TFT(Thin Film Transistor) panel. CONSTITUTION: Gate lines are formed on an insulation substrate(110). Data lines are formed on the insulation substrate, and are insulated and crossed with the gate lines. TFTs connect to the gate lines and the data lines. R, G and B color filters(230R,230G,230B) are formed on the TFTs. Pixel electrodes are formed on the R, G and B color filters, and are connected with the TFTs. The pixel electrodes include R, G and B pixel electrodes formed in positions corresponding to the R, G and B color filters and a white pixel electrode formed in a position which does not correspond to the R, G and B color filters.
Patent KR-20040082818-A (KR)
Inventor: LEE CHAN SU
IPC: H04M11/00
Filed: 2003-03-20
Abstract: PURPOSE: A method for collecting a charge of a meter information system is provided to conveniently settle a charge for energy without visiting a company or a charging station of a card. CONSTITUTION: A user requests the authentication amount and an authenticating key to an authenticating agency(S401). The authenticating agency transmits authentication information to a mobile of a user(S402). A meter information apparatus reads authentication information of a mobile phone for mobile commerce to automatically input an authentication code(S403,S404). The meter information apparatus judges whether the mobile phone is authenticated(S405). If so, the meter information apparatus settles a charge by using a mobile commerce function(S406). The user uses energy corresponding to the settled amount(S407).
Patent KR-20030028801-A (KR)
Inventor: LEE IL YONG
Filed: 2003-03-20
Abstract: PURPOSE: A system for intermediating a remittance on the online is provided to make a seller receive guarantee by delivering an article after receiving payment, and to make a buyer reserve the payment until receiving the article normally. CONSTITUTION: If the buyer making a contract pays the remittance after setting up a password to the remittance(1), the remittance is sent to an account of the seller promptly(2). The remitted amount having the password exists in a state not mixed with other deposit of the seller. Thus, the seller withdraws the remitted amount only if the seller cancels the password. The buyer informs the seller of the password after receiving the article(3). The seller withdraws the remitted amount after canceling the password(5).
Patent KR-20030031073-A (KR)
Inventor: NOH YUN SEOP
IPC: H03F3/21
Filed: 2003-03-25
Abstract: PURPOSE: A bias stabilization circuit is provided, which is integrated by on-chip while not being affected by temperature and regulated voltage variations and of lowering DC power consumption. CONSTITUTION: A power amplifier(11) consists of the first transistor(Q1) for amplifying and outputting an input RF signal. A bias circuit(12) consists of the second transistor(Q2) which is connected to a base of the first transistor and a regulated voltage(Vreg) and acts as a base current driving transistor of the first transistor. A current compensating circuit(13) is operated such that the second transistor constantly supplies base current of the first transistor irregardless of temperature and regulated voltage variation and an operating point of time of the power amplifier is constantly maintained.
Patent KR-20040084295-A (KR)
Inventor: CHOI HEON JIN
IPC: C04B35/632
Filed: 2003-03-27
Abstract: PURPOSE: Provided are an aqueous ceramic slurry containing an acryl emulsion as a binder and a method for producing a ceramic tape for LTCC(low temperature co-fired ceramic) by using the aqueous ceramic slurry. The ceramic tape dose not generate environmental pollution and is not harmful to human bodies. CONSTITUTION: The aqueous ceramic slurry comprises 100pts.wt. of a metal oxide powder, 0.1-3.0pts.wt. of a dispersant, 15-50pts.wt. of water, 5-20pts.wt. of an aqueous binder, and 3-15pts.wt. of a plasticizer, wherein the aqueous binder is a mixture of the acryl emulsion and HPMC(hydroxypropyl methyl cellulose). And the method for producing the ceramic tape contains the steps of: preparing the ceramic slurry; ball-milling the ceramic slurry and then stirring under a vacuum at a fixed speed to remove residual foams from the slurry and to reach a proper viscosity; forming the defoamed ceramic slurry into a sheet. The ceramic tape for LTCC produced by the method has a thickness of 20-200 micrometer.
Patent KR-20040089320-A (KR)
Inventor: KIM HYEONG JIN
IPC: F04B39/02
Filed: 2003-04-11
Abstract: PURPOSE: An apparatus for supplying lubricating oil of a reciprocating compressor is provided to reduce the manufacturing cost by reducing the number of processes for manufacturing a front frame, and improve the efficiency of compression. CONSTITUTION: A casing is filled with a certain amount of lubricating oil. A frame(121) is elastically installed inside the casing. A reciprocating motor is mounted at the frame for moving a mover in a straight line. A piston(42) is combined with the mover of the reciprocating motor and is inserted into a cylinder(41) mounted at the frame for absorbing and compressing a fluid while reciprocating in a straight line. A resonance spring elastically supports the piston for inducing resonance motion. A lubricating oil supply unit(160) is mounted at the frame for inducing the lubricating oil inside the casing into a space between the cylinder and the piston. A lubricating oil supply cover(180) is mounted at one side of the frame to form a guide chamber(181) communicated with the lubricating oil supply unit, covering an outer peripheral surface of the cylinder.
Patent KR-20040092809-A (KR)
Inventor: LEE WON HO
IPC: H01L27/146
Filed: 2003-04-29
Abstract: PURPOSE: A CMOS image sensor is provided to improve fill-factor and to enhance reset efficiency by deforming layout of a unit pixel. CONSTITUTION: A unit pixel of a CMOS image sensor comprises a single photodiode and four transistors including a transfer transistor(22a), a reset transistor(22b), a drive transistor(22c) and a select transistor. The unit pixel includes a square active region(21), a photodiode formed at a portion except for each edge of the active region, gate electrodes of the transistors, and a source/drain region. The gate electrodes are isolated to each edge portions of the square active region. The source/drain region is formed between the first quadrant edge and the second quadrant edge of the active region.
Patent KR-20040097735-A (KR)
Inventor: KIM SEONG GYU
IPC: B22F9/22
Filed: 2003-05-13
Abstract: PURPOSE: To obtain nano-tungsten powder having narrow particle size distribution and uniformed particle size and lower preparation cost and enable commercial mass production of nano-tungsten powder compared with conventional gas evaporation or high temperature pyrolysis method by reducing tungsten chloride with hydrogen. CONSTITUTION: In a method for preparing nano-tungsten powder by reduction reacting the evaporated tungsten chloride with hydrogen gas at high temperature after evaporating a raw material of tungsten chloride, the method comprises a step of evaporating tungsten chloride in an evaporation furnace by supplying nitrogen gas to the evaporation furnace; and a step of reacting the evaporated tungsten chloride with hydrogen gas and sulfur dioxide in the reactor by supplying hydrogen gas and sulfur dioxide to a reactor at the same time, wherein a supply ratio of nitrogen to hydrogen is 1:1 to 5:1, and a supply ratio of hydrogen to sulfur dioxide is 5:1 to 20:1, wherein temperature of the evaporation furnace is 200 to 300 deg.C, and temperature of the reactor is 600 to 800 deg.C.
Patent KR-20040098156-A (KR)
Inventor: PARK HYEON SU
IPC: G11B20/14
Filed: 2003-05-13
Abstract: PURPOSE: A frequency detecting apparatus for generating clocks of an optical disk and a method thereof are provided to stably obtain a frequency error even if the quality of a reproduced signal is bad and even if a frequency difference between an input signal and an oscillation frequency is big, thereby improving the stability of a PLL(Phase Locked Loop) circuit. CONSTITUTION: A signal amplifying filter(410) filters radio frequency components of a predetermined input signal, and amplifies the filtered radio frequency components. A frequency detector(420) receives the input signal of which the radio frequency components are amplified and a predetermined clock signal to detect a frequency difference between the input signal and the clock signal, and to generate a control voltage corresponding to the frequency difference.