baber/WOPTO huggingface dataset:
Patent KR-20090011941-A (KR)
Title: Stack package
Inventor: HWANG CHAN KI
IPC: H01L23/12
Filed: 2007-07-27
Abstract: A stacked package is provided to prevent the fault generated from the welded joint section between packages in the stacked package formation. The first semiconductor chips(204a,204b) and the second semiconductor chips(206a, 206b) are adhered to upper side and lower side of lead frame paddles(202a,202b). The inner-leads(208a, 208b)r of the bonding pad and the lead frames(212a,212b) of the first semiconductor chip and the second semiconductor chip are electrically connected by metal wires(214a,214b). Outer leads(210a,210b) of the lead frame are sealed up by sealing compounds(218a,218b) such as EMC(Epoxy Molding Compound) in order to be withdrawn to the outside.
Patent KR-20090016523-A (KR)
Title: Method for blocking debris and sediments in river and reservoir
Inventor: KIM YOUNG SUG
IPC: E02B8/02
Filed: 2007-08-07
Abstract: A method for cutting off an influent material of a river and a reservoir for regenerating resources and heightening the function of water storage facilities is provided to fulfill the function of water quality purification with the action of microorganism by installing a porous discharge weir formed by a porous filter media having a gap to a river. A method for cutting off an influent material of a river and a reservoir comprises the steps of installing a porous discharge weir(1) composed of a porous filter media having a gap to discharge water to the upper reaches of a river to collect impurities and bed load, and installing a suspended sediment overflow prevention projection(2) of an impermeable structure to the lower reaches of a river to collect the polluted suspended sediment and surplus suspended sediment flowing inward by overflowing the porous discharge weir, thereby to flow out water to the lower reaches of the river without the impurities, bed load, polluted suspended sediment and surplus suspended sediment.
Patent KR-20090018288-A (KR)
Title: Chicken wing cooking method
Inventor: LEE JI HO
IPC: A23L13/00
Filed: 2007-08-17
Abstract: A method for cooking the chicken wing by using a medical herb material is provided to improve taste and to enhance storage period, thereby preventing the food poisoning. A method for cooking the chicken wing comprises the steps of (S101) making sheath on the rod part and the wing part of chicken wing; (S102) dipping the processed chicken wing in a red insam (ginseng steamed red) powder, a pine needles powder red wine, black pepper and salt for 10 hours to salt it; (S103) putting a seasoning filling into the sheath of the salted chicken wing; (S104) smoking the chicken wing with a Korean red pine, a grape tree, a white oak and a white sandalwood for 5 hours; (S105) coating the smoked one with a buckwheat powder and frying it in a mixture oil comprising a trans oil-free vegetable oil and a safflower seed oil at 170°C for 3 min; and (S106) baking the fried one with applying sauce in an oven.
Patent KR-20090022126-A (KR)
Title: Electric power steering apparatus equipped with one board type of electronic control unit
Inventor: KWON HYUK JIN
IPC: B60R16/02
Filed: 2007-08-29
Abstract: An electronic control unit of the electro-driven power assistance steering system is provided to mount the ECU(Eletronic Control Unit) on the vehicles easily since motor joint and power joint are changed. An electronic control unit(400) of the electro-driven power assistance steering system comprises a motor joint(482) connected with the current source terminal of the motor, a connection part(480) having a power supply connector(484) connected with the current source terminal, a printed circuit board(430) in which the connection part is mounted, and a booth bar(490) having a first booth bar and second booth bar. One side of first booth bar is connected to the printed circuit board and the other side is connected to the motor joint. The second booth bar is formed corresponding to the first booth bar and is connected to the power supply connector of the connection part.
Patent KR-20090023971-A (KR)
Title: Method and system for integrally managing wired and wireless devices
Inventor: KEUM JI EUN
IPC: G06Q50/10
Filed: 2007-09-03
Abstract: A method and a system for integrally managing wired and wireless devices are provided to enable a service provider to simultaneously manage wired and wireless network devices and manage devices using different modes through a server supporting one protocol. An OMA(Open Mobile Alliance) DM server(130) is connected to a DSL(Digital Subscriber Line) CPE(Customer Premise Equipment) device(300) through a protocol changing device(120). The protocol changing device changes a CPE WAN management protocol based message and a DM base message. The protocol changing device is connected to an interface connected to a DSL CPE device. An OMA DM device(200) comprises an OMA DM client(210). The DSL CPE device comprises a CWMP client(310).
Patent KR-20080023171-A (KR)
Title: Spin memory and spin fet
Inventor: INOKUCHI TOMOAKI
IPC: H01L27/105
Filed: 2007-09-06
Abstract: A spin memory and a spin FET(Field Effect Transistor) are provided to reduce switching magnetic field by inserting an amorphous or a crystalline metal layer between a magnetoresistance element and a lower electrode, and between magnetoresistance element and an upper electrode. A spin memory(1m) comprises a magnetoresistance element(17), lower and upper electrodes(16,18), a switching element(14), a bit line(20), a yoke, a third ferromagnetic layer, and a second nonmagnetic layer. The magnetoresistance element comprises a first ferromagnetic layer having a fixed magnetization direction, a second ferromagnetic layer having a changing magnetization direction, and a first nonmagnetic layer between the first and second ferromagnetic layers. The lower and upper electrodes extending in a direction between 45 to 90 with respect to a hard axis of magnetization of the second ferromagnetic layer, placing the magnetoresistance element at an end portion of the longitudinal direction. The switching element is connected to another end in a longitudinal direction of the lower electrode. The bit line is connected to another direction in a longitudinal direction of the upper electrode. The yoke is provided at least one of the lower or upper electrodes. The third ferromagnetic layer has a fixed magnetization direction. The second ferromagnetic layer is disposed between the first and second nonmagnetic layers, and the second nonmagnetic layer is disposed between the second and third ferromagnetic layer. Spin-polarized electrons are supplied to the second ferromagnetic layer, and a magnetic field is applied from the lower and upper electrodes to the ferromagnetic layer to perform writing.
Patent KR-20090026845-A (KR)
Title: Inhibiroty effect of xanthium strumarium extracts on casein kinase 2 activity
Inventor: BAE YOUNG SEUK
IPC: A61K31/05
Filed: 2007-09-11
Abstract: An extract including a composition for killing cancer cell is provided to hinder activity of protein phosphatase CKII(casein kinase 2) and to induce apoptosis of the blood cancer cell. An extract including a composition for killing cancer cell includes 3,4-dihydroxy benzaldehyde of a chemical formula 1 or a derivative thereof as a main component. The 3,4-dihydroxy benzaldehyde or the derivative is obtained from Xanthii Fructus. A composition for treating and/or preventing blood cancer includes extract including 3,4- dihydroxy benzaldehyde of the chemical formula 1 or a derivative thereof as main component.
Patent KR-20080025353-A (KR)
Title: Pre-treatment of feed to non-stirred surface bioreactor
Inventor: NORTON ALAN ERIC
IPC: C12M1/00
Filed: 2007-09-17
Abstract: A method for pre-treating feed supplied to a bio-reactor is provided to reduce leachate time and control microbial population effectively when gold and a non-metallic concentrate are extracted by using a non-stirred surface heap leach bio-reactor. A method for pre-treating feed supplied to a non-stirred surface heap leach bio-reactor comprises a step of applying a first and a second pre-treating solutions to the feed to the non-stirred surface heap leach bio-reactor to the feed in sequence, wherein the first solution has more than 5g/l of Fe and pH of less than 2 and the second solution includes substantially higher microbial population, which is selectively controlled regarding a heap PLS solution. A method for controlling microbial population used in the non-stirred surface heap leach bio-reactor comprises a step of passing a solution including microorganisms through an inoculant generator where a concentrate is supplied to select the microorganisms which are controlled in optimum levels regarding a specific toxic compound contained in the concentrate.
Patent KR-20090030598-A (KR)
Inventor: LEE JAE YONG
IPC: F16H45/02
Filed: 2007-09-20
Abstract: 본 발명은 프론트 커버와 마찰재 사이에서 발생하는 열을 효과적으로 냉각시키면서도 제작이 용이하며 내구성을 향상시키는 차량용 토크 컨버터에 관한 것이다. 
     본 발명의 차량용 토크 컨버터는, 프론트 커버, 프론트 커버에 결합되어 회전하는 임펠러, 임펠러와 마주하는 위치에 배치되어 임펠러의 회전에 따라 함께 회전하는 터빈, 임펠러와 터빈 사이에 위치하여 터빈으로부터 나오는 오일의 흐름을  임펠러 측으로 바꾸는 리엑터, 프론트 커버와 터빈을 직접 연결할 수 있는 록업 클러치, 록업 클러치에 결합되며 축의 원주 방향으로 배치되는 스프링들을 구비하고, 이들 스프링들을 지지하는 리테이닝 플레이트를 구비한 토셔널 댐퍼를 포함하며; 프론트 커버에는 록업 클러치가 접촉되는 면에 일정한 깊이를 가지는 냉각용 오일 순환 홈들이 제공된다. 
       
     오일, 피스톤, 마찰재, 냉각, 박리
Patent KR-20090030776-A (KR)
Inventor: PARK DONG MYEONG
IPC: H04W4/00
Filed: 2007-09-21
Abstract: 각각의 이동통신 단말기에 구축된 전화번호 DB를 활용하여 인맥을 구축할 수 있도록 하는 인맥 구축 서비스 방법을 개시한다. 
     본 발명은, 특정 추천 대상인과 인맥을 형성하고자 하는 자를 추천 요청인이라 하고, 추천 대상인과 인맥을 형성하고 있는 자를 추천인이라 할 때, 추천 요청인 단말기, 추천인 단말기, 추천 대상인 단말기 간의 인맥 구축 서비스 방법으로서, 추천 요청인 단말기가, 추천 대상인 조건과, 추천 요청인 정보를 포함하는 추천 요청 메시지를 생성하여 추천 요청인이 지정한 추천인 단말기로 전송하는 추천 요청 단계와; 추천 요청 메시지를 수신한 추천인 단말기가, 상기 추천 대상인 조건을 키워드로 단말기에 구축된 전화번호 DB를 검색하고, 전화번호 DB에 추천 대상인 정보가 존재할 경우 해당 추천 대상인 단말기로 상기 추천 요청 메시지를 전달하는 추천 단계와; 상기 추천 대상인 단말기에서 추천 수락이 이루어짐에 따라 추천 대상인 단말기가 추천 대상인 정보를 포함하는 추천 수락 메시지를 생성하여 상기 추천 요청인 단말기로 전송하는 추천 수락 단계; 를 포함하여 구성됨에 기술적 특징이 있다.
Patent KR-20090033573-A (KR)
Title: Retrofitting and strengthening system of concrete structures using sprayed frp coating
Inventor: LEE HAENG KI
IPC: E04G23/02
Filed: 2007-10-01
Abstract: A repair and reinforcing method of concrete structure using a jetting fiber reinforced coating is provided to improve the structural performance by coating the cracking generated in the surface including a concrete girder, a slab, a bridge structure etc. A repair and reinforcement method of concrete structure using a jetting fiber reinforced coating comprises following steps: a step which inspects the surface state of the degraded structure and determines a surface processing method; a step which performs the surface preparation to enhance the adherence between the concrete structure surface and fiber reinforced resin; a base coating layer formation step which enhances an adherence of the boundary surface; a step which forms a fiber reinforced coating layer; a step which forms a finish coating layer with epoxy resin; and a step for curing the concrete.
Patent KR-20090033750-A (KR)
Title: Method and apparatus for recommending playlist of contents
Inventor: LEE JAE WON
IPC: G06Q50/10
Filed: 2007-10-01
Abstract: A method and an apparatus for recommending a play list of contents are provided to dynamically generate a play list about a channel that a user selects by using a search engine, thereby recommending a play list suitable for a taste of the user. An attribute extractor(10) extracts one or more attributes from a sound source to which a user listens. A user taste analyzer(20) analyzes a user taste by clustering the extracted attributes. The user taste analyzer provides a recommended keyword list based on the analysis result. A searcher(30) searches contents stored in the terminal according as the user using the recommended keyword list inputs a keyword and generates a play list in real time by using a search result.
Patent KR-20090034510-A (KR)
Title: Bracket for fixing curtain wall
Inventor: NO YOUNG MIN
IPC: E04B2/96
Filed: 2007-10-04
Abstract: A curtain wall fixing bracket is provided to easily set horizontal and vertical plates at the right angle and to stably support a curtain wall of a multistory building. A curtain wall fixing bracket is composed of a first plate(11) combined in a connection bracket connected to a mullion of a curtain wall with a bolt, and a second plate(12) combined by an anchor channel reclaimed in a slab of a concrete building and a bolt. The plates are combined by welding to form the right angle.
Patent KR-20090037671-A (KR)
Title: Fuel cell
Inventor: LEE GIL YONG
IPC: H01M8/02
Filed: 2007-10-12
Abstract: A fuel cell is provided to prevent the generation of pressure loss between a humidifier and a stack unit, and the overflowing of moisture in a stack unit, in advance. A fuel cell comprises at least one unit cell(213) generating electrical energy through electrochemical reaction of oxygen and hydrogen by forming an electrolyte film and arranging a plurality of bipolar plates equipped with fuel channel and air channel; a humidifier which humidifies the air flowed in the air channel; and a fixation member(214, 215) combined with the unit cell and humidifier into one body.
Patent KR-20070108117-A (KR)
Title: Thick film conductor compositions and the use thereof in ltcc circuits and devices
Inventor: NAIR KUMARAN MANIKANTAN
IPC: H01B1/22
Filed: 2007-10-19
Abstract: A thick film composition is provided to ensure excellent re-firing stability, and be used as a dielectric or insulating material together with low-temperature co-fired ceramic materials and various other paste components to form multi-layered electronic circuits. A low-temperature co-fired ceramic circuit includes a thick film composition, wherein the thick film composition is treated to sinter glass frit(s), metal powder, and other sintering aids and remove an organic medium. The thick film composition comprises, based on a total weight percent of the thick film composition, (a) 30-98wt% of fine particles selected from precious metals, alloys of precious metals, and mixtures thereof, (b) at least one inorganic binder, and (c) an organic medium in which the components (a) and (b) are dispersed, wherein the at least one inorganic binder(b) is selected from (1) 0.2-20wt% of at least one fire-resistant glass composition having a specific viscosity(log n) of 6-7.6 at the firing temperature of the low-temperature co-fired ceramic circuit, (2) 0.1-5wt% of an additional inorganic binder selected from (i) metal oxides, (ii) metal oxide precursors, (iii) non-oxide borides, (iv) non-oxide silicides, and (v) mixtures thereof. The glass composition is immiscible or partially miscible with remaining glasses present on the low temperature co-fired ceramic substrate glass in the firing condition.
Patent KR-20090047327-A (KR)
Inventor: KIM KANG SUK
IPC: G02F1/1343
Filed: 2007-11-07
Abstract: 본 발명은, 기판 상에 서로 교차하여 화소영역을 정의하며 게이트 절연막을 사이에 두고 그 하부 및 상부에 각각 형성된 게이트 배선 및 데이터 배선과; 상기 게이트 배선과 나란하게 형성된 공통배선과; 상기 게이트 배선과 데이터 배선과 연결되며 형성된 박막트랜지스터와; 상기 박막트랜지스터 및 데이터 배선을 덮으며, 상기 화소영역에 각각은 마주보며 평행한 제 1 및 제 2 측면을 갖는 다수의 화소홈을 가지는 보호층과; 상기 다수의 각 화소홈 내부의 제 1 및 제 2 측면에 각각 형성되고, 서로 이격하며 상기 드레인 전극과 전기적으로 연결된 다수의 화소전극 및 상기 공통배선과 전기적으로 연결된 다수의 공통전극을 포함하는 횡전계형 액정표시장치용 어레이 기판 및 그 제조방법을 제공한다.  
       
     	횡전계, 액정표시장치, 개구율, 선폭, 희생층
Patent KR-20090051563-A (KR)
Inventor: JANG SANG BIN
IPC: F02P19/02
Filed: 2007-11-19
Abstract: 디젤 엔진에 적용되는 예열 플러그로, 엔진의 냉간 시동시에 예열 플러그의 형상을 조절하여 시동성능 및 아이들 안정성을 개선시킨 것이다. 
     하우징, 상기 하우징의 내부에 설치되는 발열수단, 상기 하우징의 하부에 설치되어 상기 발열수단에서 발생되는 열을 연소실내에 전달하는 금속성의 열전달수단을 포함하는 예열 플러그에 있어서, 열전달수단의 끝 부분은 열팽창계수가 서로 다른 두 개의 금속이 결합된 바이메탈로 구성되며, 형상 기억의 기능이 포함되는 예열 플러그를 제공한다. 
       
     예열 플러그, 바이메탈, 발열 탭, 냉간 시동성
Patent KR-20090052674-A (KR)
Inventor: AN YONG SU
IPC: F24F13/00
Filed: 2007-11-21
Abstract: 본 발명은 천장에 설치되어 실내공기의 흡입 및 토출을 안내하는 디퓨저가 덕트와 연결시에 천장에 대하여 평행하게 결합되도록 구성되는 덕트형 공기조화기의 디퓨저에 관한 것이다. 
     본 발명은 천장 상/하측 공기의 유동을 안내하는 덕트형 공기조화기의 디퓨저에 있어서, 상기 디퓨저(100)는, 상기 천장 및 덕트와 결합되어 공기 유동 방향을 안내하는 외장커버(120)와, 상기 외장커버(120)와 이격된 상태로 천장 하측에 위치하여 상기 외장커버(120)의 개구된 하부를 차폐하는 캡(140)과, 상기 캡(140)과 외장커버(120) 사이에 위치하여 상기 캡(140)을 지지하는 내장커버(180)를 포함하여 구성되며, 상기 외장커버(120)는, 서로 연통되게 개구된 양단부의 연장선이 서로 교차하도록 형성된 것을 특징으로 한다. 이와 같은 본 발명에 따르면, 설치 편의성이 향상되는 이점이 있다. 
       
     덕트형, 공기조화기, 디퓨저, 수평
Patent KR-20090053075-A (KR)
Inventor: CHONG JONG WHA
IPC: H04B1/7163
Filed: 2007-11-22
Abstract: 차분적 이원 직교 신호 수신기, 차분적 이원 직교 신호의 복호화 방법 및 이를 기록한 기록매체가 개시된다. 
     본 발명에 따른 차분적 이원 직교 신호 수신기는, 송신단에서 차분적 이원 직교 코드로 변조된 신호를 특정 수신 채널을 통하여 수신하는 수신부; 복수 개의 이원 직교 코드 및 상기 이원 직교 코드 단위에 대응되는 신호의 위상 정보를 저장하는 코드 테이블; 상기 수신된 신호의 특정 블록 내의 심볼의 위상과 상기 심볼과 동일한 인덱스를 가지며 상기 특정 블록의 직전 블록에 포함되는 참조 심볼에 대응되는 송신 신호의 위상을 차분 연산하고, 상기 차분 연산의 결과값과 상기 코드 테이블에 저장된 이원 직교 코드의 상관 연산에 의해 상관 벡터를 생성하며, 상기 상관 벡터 및 상기 송신 신호의 위상이 제거된 상기 심볼과 동일한 인덱스를 가지는 상기 심볼 이전의 모든 심볼의 합에 따른 누적 심볼 벡터의 벡터 합 연산에 따라 에너지값을 연산하는 에너지 연산부; 상기 에너지 연산부로부터 연산된 에너지값 중 가장 큰 에너지값을 가지는 벡터를 검출하는 벡터 검출부; 상기 벡터 검출부에서 검출된 벡터에 대응되는 이원 직교 코드를 이용하여 상기 심볼의 송신 신호의 위상을 결정하고, 상기 결정된 송신 신호의 위상을 상기 에너지 연산부에 귀환시키는 결정 귀환부; 및 상기 수신된 신호에 상기 결정 귀환부로부터 귀환된 송신 신호의 위상을 감산하고, 상기 송신 신호의 위상이 감산된 상기 수신 신호의 심볼을 누적하여 상기 수신된 신호의 채널 오프셋을 추정하는 채널 오프셋 추정부를 포함한 다. 
     본 발명에 의하면, 전송된 이산 직교 코드 단위의 차분 변조 신호를 결정 귀환 방식 및 재귀 구조를 이용하여 채널 오프셋 추정을 통하여 간단한 구조로 다중 심볼 검출을 수행할 수 있으며, 채널 오프셋 추정을 위한 과거의 참조 심볼의 수가 한정되지 않으므로 정확한 채널 오프셋 추정을 수행할 수 있고, 채널 오프셋 추정을 통한 차분적 이원 직교 신호 수신기의 구조가 간단하여 제작 비용이 저렴한 효과가 있다.
Patent KR-20090059788-A (KR)
Title: Method for supporting mobility between communication systems
Inventor: MOON JUNG MO
IPC: H04L12/28
Filed: 2007-12-07
Abstract: A method for setting up a new network address and providing a mobility support between communications network is provided to supply a continuous IP(Internet Protocol) mobility service without setting a network address in WLAN. A terminal performs a first communications network and authentication by using a terminal ID(S300). The terminal transmits a router searching message for the router search of the first communications network to the control station of the first communications network(S303). The terminal receives the message including the prefix from the control station(S306). The terminal performs the second communications network and authentication by using the terminal ID(S309). The terminal receives the message including prefix from the router of the second communications network(S313).
Patent KR-20090062667-A (KR)
Title: Method for measuring gearbox output speed of hev
Inventor: SHIN SANG HEE
IPC: B60W20/00
Filed: 2007-12-13
Abstract: A gear box output speed measuring method of a hybrid vehicle is provided to exactly control the torque by computing the driver demand torque and creep torque. A gear box output speed measuring method of a hybrid vehicle is composed of steps of: monitoring a motor speed code, a wheel speed code, and a final gear ratio(ST200); computing a gear box output speed code by using the motor speed code, the wheel speed, and the final gear ratio(ST210); judging whether or not the demand direction code of a driver and the output speed code coincides(S220); and judging the vehicle slip if it does not coincide with(ST230); returning the ST200 step after the ST230 step. The motor speed code is obtained from a motor control unit, and the wheel speed code is obtained from a wheel sensor.
Patent KR-20090063295-A (KR)
Title: Switching device for side view mirrors of a vehicle
Inventor: KIM YOUNG CHAN
IPC: H01H25/04
Filed: 2007-12-14
Abstract: A mirror switch apparatus is provided to reduce dangerous states due to dispersion of attention power of a driver by integrating complex functions. A mirror switch apparatus(10) includes a housing unit(100), a printed circuit board, a mirror button unit, and a folding push unit. The printed circuit board is arranged in the inside of the housing unit. The mirror button unit includes a mirror button knob(310) and a mirror button shaft. An upper end of the mirror button knob is arranged on one side of the housing unit. The mirror button shaft is connected to the mirror button knob. The mirror button shaft is rotatably arranged in the inside of the housing unit. The folding push unit includes a push bar and a push bar guide. The push bar is extended from one side of the mirror button shaft. The push bar guide is arranged nearly to the mirror button unit. The push bar guide is operated by the push bar. The folding push unit is electrically controlled by the movement of the push bar guide.
Patent KR-20090064832-A (KR)
Title: Mobile communication terminal and method of editing image therein
Inventor: LIM KYOUNG MI
IPC: H04B1/40
Filed: 2007-12-17
Abstract: A mobile communications terminal and a method for editing an image for freely editing image are provided to use a touch screen and perform an image editing session efficiently. If one point of a screen is touched among the display of an image through a touch screen, a controller(180) stops the display of the image. The controller sets up the state for the video edit. According to the signal which is input from outside, the controller edits the screen of the display abort timing of the image. A user input unit(130) generates the input data for the operation control of a mobile communications terminal(100).
Patent KR-20090065640-A (KR)
Title: Method for identity, route and location anonymity in wireless sensor networks
Inventor: LEE SUNG YOUNG
IPC: H04L12/28
Filed: 2007-12-18
Abstract: An identity based on a current position within a wireless sensor network, a route and a location anonymous method are provided to protect the identity of the source node, the route, the location and the generated packet when transmitting the packet to a base station. Each sensor node preserves a magnetic track of a sink node(S21). The neighboring nodes of each sensor node is classified based on current location of the sink node according to direction(S22). The adjacent node of each sensor nodes is classified based on the link reliability according to the confidence(S23). The periodic update which a GPS(Global Positioning System) or the sink node transmits is used in the magnetic track.
Patent KR-20090069728-A (KR)
Title: Apparatus for detecting suface defect of wire rod member
Inventor: KIM WON BONG
IPC: G01N27/82
Filed: 2007-12-26
Abstract: A wire surface defect detection apparatus is provided to suppress noise generation and improve accuracy of the detection result by allowing a wire rod to pass through a sensor stably in spite of an external impact. A wire surface defect detection apparatus comprises a base with a guide for guiding the transfer of wire rods, a first sensor(30) detecting the change of a minute band by the variation of eddy current resulting from a surface defect of the transferred wire rod, a first detector(30A) connected to the first sensor, a second sensor(31) detecting the change of a wide band by the variation of eddy current, and a second detector(30B) connected to the second sensor. The first and second detectors determine the surface defect of the wire rod based on the variation of eddy current measured by the respective first and second sensors.