baber/WOPTO huggingface dataset:
Patent KR-20030029765-A (KR)
Title: Data terminal equipment having touch screen key as a soft hot key and method thereof
Inventor: CHO GYEONG SEON
IPC: G06F15/02
Filed: 2001-10-10
Abstract: PURPOSE: A data terminal having a touch screen key being used as a soft hot key and a method thereof are provided to set and use a function as a soft hot key and to change a label display of a key corresponded to the soft hot key adapted to the setting. CONSTITUTION: A display unit displays a plurality of menu icons. Displayed sizes of each icon are different according to selection priorities. Touch screen keys(11,12) are soft hot keys mounted on a frame of a terminal main body. A user selects the menu icons using a selection unit(13). The selection unit(13) is embodied by a push button. A control unit(14) displays a selected icon on the touch screen keys(11,12). If the touch screen key(11,12) is touched by the user, the control unit(14) executes a function of a corresponding icon. A scroll key(15) displays the menu icons successively on the display unit. If a certain icon is selected by the selection unit(13), a memory(16) of the control unit(14) stores data for allocating a function corresponded to the selected icon on the touch screen key(11,12). The control unit(14) includes an animation processing unit(17) for displaying a movement of the selected icon to the touch screen key(11,12) on the display unit as animation.
Patent KR-20030031640-A (KR)
Title: Method for removing ammonium nitrogen by using newberyite and for regenerating newberyite
Inventor: CHOI SIK YOUNG
IPC: C02F1/58
Filed: 2001-10-15
Abstract: PURPOSE: A method for removing ammonia nitrogen (NH4-N) using newberyite (MgHPO4·3H2O), a method for regenerating newberyite and a method for preparing an ammonium fertilizer using gaseous or liquid ammonia generated during the regeneration of the newberyite are provided. CONSTITUTION: In a method for removing ammonia nitrogen (NH4-N) using newberyite (MgHPO4·3H2O), the method is characterized in that at least one coagulant selected from the group consisting of alum, polyaluminum chloride, polyaluminum chloride silicate, FeCl3, Fe2(SO4)3, Ca(OH)2, CaO, silica coagulant and polymer coagulant is additionally used; 5 to 20 wt.% of magnesium compounds selected from the group consisting of MgCl2, MgSO4·7H2O, MgO, and Mg(OH) is additionally used; and 1 to 20 wt.% of phosphorus compounds selected from the group consisting of KH2PO4, K2HPO4, NaH2PO4·nH2O, Na2HPO4·nH2O is additionally used.
Patent KR-20030037145-A (KR)
Title: the method and the system for passward based key change
Inventor: LEE HYEONG GYU
IPC: H04L9/08
Filed: 2001-11-02
Abstract: PURPOSE: A method and a system for exchanging a key by using a password are provided to reduce the traffic on a network and communication errors by reducing the number of key exchange messages between systems and the amount of calculation of a client. CONSTITUTION: A client(10) is formed with a key exchange module initialization management portion(11) for managing parameters and functions, a key exchange coefficient generation portion(12) for generating coefficients for key exchange protocols, a key exchange calculation portion(13) for generating and processing a key exchange protocol message, an encoding process portion(14) for performing an encoding process, a key exchange registration portion(15) for processing a process for registering the key exchange, and a transmission portion(16) performs a data communication process with a server(30) through a network(20). The server(30) is formed with a key exchange module initialization management portion(31) for managing the parameters and the functions, a key exchange calculation portion(32) for generating a key exchange message, an encoding process portion(33) for protecting the key exchange message, a key exchange registration portion(34) for decoding the encoded data, a storage portion(35) for storing the decoded data, and a transmission portion(36) for performing a data communication process with the client(10) through the network(20).
Patent KR-20020036757-A (KR)
Title: Wall panel system
Inventor: BASSIL MARK G
IPC: E04B2/76
Filed: 2001-11-09
Abstract: PURPOSE: A wall panel system is provided to convey to the right place easily, to assemble in various structures, to construct simply by minimizing the manpower and skill required for installation, to transport easily by an elevator and a stairwell, to occupy room at a minimum while carrying to the assembling place and to have load bearing capacity for furniture structural elements such as a shelf, a file cabinet, etc. CONSTITUTION: The wall panel system comprises: a rectangular base frame containing a pair of extensional side frame members and a pair of extensional upper, lower frame members; an extension frame containing a pair of side extension members and an upper extension member or connection member, wherein the side and upper extension member are coupled by welding to form a module type U-shaped frame; and a pair of extensional connecting posts attached to one of the side frame members and one of the side extension members to keep the assembled state of the base frame and the extension frame.
Patent KR-20030039625-A (KR)
Title: Method for effective using and applying foreign language texts
Inventor: NAM CHANG WOO
Filed: 2001-11-13
Abstract: PURPOSE: A method for deciding and applying an effective use method of a foreign language teaching material is provided to supply the optimum learning draft of learning contents adapted to levels of various learners for enabling a learner to master a foreign language effectively using a computer network and an education software. CONSTITUTION: A terminal device(10) comprises a language study training program(11) and a computer network connection unit(14). The language study training program(11) is for learning multimedia data(12) and learning draft basic data(13) with respect to a learning method. The computer network connection unit(14) transmits learning action data of a learner and learner basic information. A server device(20) for supplying a learning draft includes a computer network connection unit(21) and a learner authentication(22). The server device(20) authenticates a learner using data received from the terminal device(10) and stores learning action data of an authenticated learner in a learning action database(23). A learning result analysis unit(24) makes the optimum learning draft data through an analysis operation based on a learning rule database(25) of an education specialist and the learning action database(23) of a learner. An individual learning program manufacturing and servicing unit(27) combines data of the learning action database(23) and a learning draft database(26), makes a foreign language learning draft adapted to each learner, and supplies an additional learning service.
Patent KR-20030039813-A (KR)
Inventor: LIM CHAE YOUNG
IPC: C04B40/00
Filed: 2001-11-14
Abstract: PURPOSE: Provided are concrete admixture powder which has high strength, workability, and low costs by using industrial byproducts, stone and limestone powders, as main materials. CONSTITUTION: The concrete admixture powder contains 20-35wt.% of stone powder generated in stone processing, 20-35wt.% of limestone powder, 10-20wt.% of fly ash and 10-20wt.% of blast furnace slag, wherein the stone and limestone powders are obtained by drying at 100-150deg.C and grinding to be a specific surface area of 4500-6000cm2/g, and the surface area of fly ash and blast furnace slag are 4000-5000cm2/g and4500-6000cm2/g, respectively. The 10-30wt.%(based on the cement) of admixture is added to cement for concrete mixing.
Patent KR-20030042203-A (KR)
Title: Method for Billing and Buying the Merchandise by Sending the Purchasing Information
Inventor: HONG JONG CHEOL
Filed: 2001-11-22
Abstract: PURPOSE: A method for purchasing and paying goods by transmitting purchase information is provided to enable a minor to get the desired goods on the Internet under the control of a parent by making the minor get a settlement approval from the parent after providing the goods information to the parent. CONSTITUTION: If the first client is connected to a web server(300), the web server receives the personal information and the settlement tool information of the first client, and receives the simple personal information of the second client having a special relation with the first client(305). After reception, the web server gives an ID and a password needed to log in to a web site, and an AP(Agent Program) to the clients(310), and provides an AP according to a request of the client(315). If the AP is executed on the first and the second client system, the web server receives the AP operation particulars(330) and sends a result to the corresponding client through a mail and an SMS(Short Message Service).
Patent KR-20030043182-A (KR)
Title: Container type LNG tank
Inventor: KWAK TAE OK
IPC: B63B25/08
Filed: 2001-11-27
Abstract: PURPOSE: An LNG(Liquefied Natural Gas) carriage tank is provided to load and carry a container in a container carrier after installing an LNG storage tank and an insulating equipment inside the container. CONSTITUTION: An LNG storage tank(20) is installed by separating from the inner wall of a container. A cooling device(30) maintains the LNG storage tank under a certain temperature. A support(40) connects the LNG storage tank with the inner wall of the container. An insulating material(50) is installed inside the container. By installing an LNG carriage tank and an insulating material inside the container, the LNG carriage tank is carried by a container carrier instead of an exclusive LNG carrier.
Patent KR-20020043166-A (KR)
Title: Method of forming conductive pattern
Inventor: IMAI GENJI
IPC: H05K3/02
Filed: 2001-11-28
Abstract: PURPOSE: A method of forming a conductive pattern by irradiating a beam of high energy radiation to form a desired conductive pattern on a conductive film of a positive type energy beam-response paste composition and then removing a film of the irradiating part is provided. Therefore, the method enhances the precision of the obtained wiring circuit, forms a sharp pattern and generates no environmental pollution. CONSTITUTION: The conductive pattern forming method comprises: a) forming a positive type energy beam-response film by coating a positive type energy beam-response paste composition containing conductive powder on a substrate(1) and drying; b) irradiating an active energy beam or heat ray on the film through a mask or directly to obtain a desired pattern; and c) forming a conductive pattern film by subsequently removing the film of the irradiating part by development treatment.
Patent KR-20020005544-A (KR)
Inventor: YOU YEN SIL
IPC: A21D13/00
Filed: 2001-11-27
Abstract: PURPOSE: A process of preparing bread by mixing wheat flour or cereal flour with loess water in place of water, kneading and baking is provided. Whereby, the bread contains 40 sorts of minerals and can be applied to health food. CONSTITUTION: Wheat flour or cereal flour is kneaded with loess water and salt. The dough is mixed with yeast, sugar, pine needle and the like and heated at 100deg.C or more. The loess water is prepared by grinding loess finely and filtering, followed by removing precipitate.
Patent KR-20010114196-A (KR)
Title: 아바타 제작방법과 그를 이용한 온라인상의 아바타제작시스템 및 방법
Inventor: OH KWANG HO
IPC: G06F19/00
Filed: 2001-11-30
Abstract: 본 발명은 아바타 제작방법과 그를 이용한 온라인상의 아바타 제작시스템 및 방법에 관한 것으로서, 더 상세하게는 아바타 제작서버가 클레이로 해당 아이템을 제작, 촬영, 추출한 아바타 구성요소를 웹 서버에 제공하고 사용자는 웹 서버에 접속한 상태에서 아바타 구성요소를 합성하여 아바타를 제작함으로써 일반적인 그림 아바타보다 따뜻한 느낌과 사실감, 질감, 양감을 더 느낄 수 있는 아바타 제작시스템 및 방법에 관한 것이다. 
     본 발명에 따른 아바타 제작방법은 인체의 각 부분에 대한 디자인을 결정하는 단계와, 디자인에 따라 클레이로 해당 아이템을 모델링하는 단계와, 모델링된 부분을 촬영하는 단계와, 촬영소스를 디지타이징하여 입력하는 단계와, 입력된 이미지소스중 합성에 사용될 부분을 추출하는 단계와, 크기를 맞추고 색보정 작업을 하는 단계와, 색보정 작업이 끝난 각 부분을 합성하여 아바타를 만드는 단계로 구성된다.
Patent KR-20030046159-A (KR)
Title: Photocatalytic loess deodorant and method for manufacturing the same
Inventor: RYOO KEON SANG
IPC: A61L9/014
Filed: 2001-12-05
Abstract: PURPOSE: Provided are loess ball deodorants which remove the odor efficiently by using the domestically abundant loess and photocatalyst, and a preparation method thereof. CONSTITUTION: The loess ball deodorants are characterized in that loess balls(1) containing the copper powders are formed to have the diameter of 1 mm to 10 mm, the loess balls are coated with the photocatalyst(2), and the density is 0.5 g/ml to 0.95 g/ml. The preparation method of the loess ball deodorant comprises a formation step of the loess ball to mix the loess powders and water homogeneously and form into balls(1) having the diameter of 1 to 10 mm, a drying step to dry the loess balls at the temperature of at least 80 deg.C for at least 1 hour, a coating step to coat the loess ball with the TiO2 photocatalyst(2), and a sintering step to sinter the ball at the temperature of at least 600 deg.C for at least 12 hours.
Patent KR-20030050846-A (KR)
Title: Method for forming metal line of semiconductor
Inventor: JANG HYEON JIN
IPC: H01L21/285
Filed: 2001-12-19
Abstract: PURPOSE: A method for forming a metal line of a semiconductor device is provided to be capable of maximally restraining a titanium silicide layer from being formed toward a junction region of a silicon substrate by previously forming a silicon thin film on the silicon substrate having a contact hole before depositing a titanium/titanium nitride layer. CONSTITUTION: After forming an interlayer dielectric(220) on a silicon substrate(200) having a junction region(210), a contact hole is formed by selectively etching the interlayer dielectric. A spacer insulating layer(230) is formed at both sidewalls of the contact hole. After sequentially forming a silicon thin film(240) and a metal barrier layer(270) made of a titanium layer(250) and a titanium nitride layer(260) on the resultant structure by in-situ, a titanium silicide layer(280) is formed toward the junction region by carrying out a heat treatment. After forming a metal layer(290) on the resultant structure, a metal line is formed by patterning the metal layer.
Patent KR-20030052776-A (KR)
Inventor: JANG SEONG JUN
IPC: G05B19/00
Filed: 2001-12-21
Abstract: PURPOSE: A method is provided to intensify a general learning ability of a robot by permitting the intensified learning to affect the related other behaviors as well as the specific single behavior. CONSTITUTION: A method comprises a first step of setting an incidence probability of each action in accordance with the internal state of a robot, and determining actions to perform in accordance with the setting; a second step of discriminating an external command signal which is fed back by a user; a third step of increasing or decreasing the corresponding behavior selection probability in accordance with the result of discrimination of external command signal performed in the second step; and a fourth step of increasing or decreasing the selection probability with respect to the related behaviors if behaviors related to the fed-back behavior exist, and returning to an autonomy mode.
Patent KR-20030054379-A (KR)
Title: Device for extracting slab from jammed in rolling stand by using off center
Inventor: KIM DONG SU
IPC: B21B39/00
Filed: 2001-12-24
Abstract: PURPOSE: A slab extracting device is provided to prevent slab from being jammed in a rolling stand even if slab has large width, or to easily extract slab from a rolling stand by using eccentricity of slab. CONSTITUTION: A slab extracting device includes a driving motor(5) fixed to both sides of an inlet portion of a rolling stand(100). An installing slot and a rack slot are formed at both sides of the rolling stand(100). A pinion(3) is connected to the driving motor(5). A rack(3) is engaged with the pinion(3) in order to move along the rack slot. A damping stopper is installed at a lower portion of the driving motor(5). The damping stopper is rotated by receiving driving force from the driving motor(5). An upper body extends from a lower end of the rack(3) in such a manner that the upper body moves along the installing slot. A body case is fixed in the installing slot. An eccentric cam is elastically and rotatably fixed to the body case. A moving stopper is fixed to a lower outer portion of the upper body.
Patent KR-20020023933-A (KR)
Inventor: GU SANG GIL
IPC: F16L59/00
Filed: 2001-12-31
Abstract: PURPOSE: A thermal cover for preventing a pipe from being frozen to burst is provided to facilitate the construction work and to lengthen the life span of the pipe by preventing the thermal cover from being damaged even when an external impact is applied thereto. CONSTITUTION: A thermal cover(10) is made by injection molding poly-urethane. The thermal cover(10) includes the first cover(100) and the second cove(200) symmetrically arranged against the first cover(100). The first cover(100) has a semicircular shape with a predetermined thickness. A semicircular mounting section(105) is formed at the first cover(100). The first coupling slot(110) is formed at one end of the semicircular mounting section(105) and the first coupling protrusion(120) is formed at the other end of the semicircular mounting section(105). The second coupling protrusion(210) coupled to the first coupling slot(110) is formed at one end of the second cover(200). The second coupling slot(220) coupled with the first coupling protrusion(120) is formed at the other end of the second cover(200). The first coupling protrusion(120) is coupled with the first coupling slot(110), and the second coupling slot(220) is coupled with the second coupling protrusion(210).
Patent KR-20010072475-A (KR)
Title: 재발협착증을 치료하기 위한 ｄｎａ자임 및 치료 방법
IPC: A61B17/00
Filed: 1999-08-12
Abstract: 본원은 15개 뉴클레오타이드의 촉매 도메인, 및 촉매 도메인의 5' 말단에 연속하는 하나의 결합 도메인과 촉매 도메인의 3' 말단에 연속하는 결합 도메인의 두 개의 결합 도메인을 포함하는, c-myc mRNA를 특이적으로 절단하는 DNA자임을 제공한다.  본 발명은 또한, 본원의 DNA자임 및 국소 투여에 적합한 약제학적으로 허용되는 담체를 포함하는, 재발협착증의 발병을 억제하기 위한 약제학적 조성물을 제공한다.  본 발명은 추가로, 예방학적 유효량의 본원의 약제학적 조성물로 수술가능하게 피복시킨 혈관성형용 스텐트(stent)를 포함하는, 재발협착증의 발병을 억제하기 위한 혈관성형용 스텐트를 제공한다.  최종적으로, 본 발명은 본원의 약제학적 조성물 또는 혈관성형용 스텐트를 수술 환자에게 국부적으로 투여함을 포함하는, 혈관성형 시술을 받는 환자에서 재발협착증의 발병을 억제하기 위한 방법을 제공한다.
Patent KR-20010099690-A (KR)
Title: A process and an apparatus for producing metals and metal alloys
IPC: C21B11/08
Filed: 1999-10-14
Abstract: A process and an apparatus for producing metals from a metalliferous feed material are disclosed. The process includes the steps of partially reducing and at least partially melting a metalliferous feed material in a pre-reduction/melting means and completely reducing the partially reduced feed material in a reduction means. The pre-reduction/melting means is positioned directly above the reduction means and communicates with the reduction means so that at least partially molten, partially reduced feed material flows downwardly into a central region of the reduction means. The reduction means includes a vessel that contains a molten bath having a metal layer and a slag layer on the metal layer. The process includes injecting oxygen-containing gas into the reduction means and post-combusting reaction gas generated in the molten bath and injecting oxygen-containing gas into the pre-reduction/melting means and post-combusting reaction gas discharged from the reduction means. The process further includes injecting solid carbonaceous material and a carrier gas into a metal rich region of the molten bath and causing upward movement of splashes, droplets and streams of molten material which forms a transition zone.
Patent KR-20010080206-A (KR)
IPC: H05K1/09
Filed: 1999-11-03
Abstract: 본 발명은 샌드위치(sandwich) 유형 구조로 구성된 전기기계 (electromechanical) 구성요소(1)에 관한 것이다. 상기 구조의 내부에, 기포화된 플라스틱으로 구성된 지지층(support layer)(2)이 배치된다. 상기 지지층(2)은 커버층(4, 5) 사이에 놓이며, 이러한 커버층(4, 5)은 치밀한 구조를 갖는(compact) 물질들로 이루어져 있다. 모든 층(2, 4, 5)은, 예컨대 LCP 또는 PEI 플라스틱과 같은 결코 가연성(inflammable)이 아닌 플라스틱 물질로부터 생성되어서, 임의의 난연성(flame-retardant) 첨가제를 첨가할 필요가 없게 한다. 구성요소(1)는 널판(slap) 형태로 구성될 수 있지만 좀더 복잡한 3-차원 구조를 또한 가질 수 있으며, 선택적으로 기계적인 기능 요소들이 제공될 수 있다. 본 발명의 양상에 따라서, 구성요소의 지지층(2)은 실리콘으로 구성될 수 있다. 본 발명 구성요소(1) 합성물은 제품 수명의 말미에 제품의 재생을 간략화하기 위한 수단을 제공한다.
Patent KR-20010080259-A (KR)
IPC: C08G64/24
Filed: 1999-06-24
Abstract: 방향족 폴리카보네이트는 포스겐과 같은 카보닐 할라이드 및 비스페놀 A와 같은 디하이드록시방향족 화합물로부터 계면 조건하에서 폴리카보네이트의 계면 형성 촉매 및 알칼리 금속 수산화물의 존재하에 올리고머를 연속 과정으로 제조함을 포함하는 공정에 의해 제조된다.  올리고머 제조동안에 알칼리 금속 수산화물 대 카보닐 할라이드의 몰비는 1.8:1 이하, 바람직하게는 1.45 내지 1.8:1이다.  이어, 올리고머 중간 생성물은 환형 올리고머의 비율이 낮은 고분자량의 폴리카보네이트로 전환되고, 이는 증진된 열역학적 안정성을 갖는다.
Patent KR-20010101166-A (KR)
Title: Composition of oxime and hydroxy-ester for the solvent extraction of metals
IPC: C22B3/26
Filed: 1999-11-16
Abstract: A solvent extraction composition is provided which comprises one or more orthohydroxyarylaldoximes or orthohydroxyarylketoximes and one or more esters substituted with a hydroxyl group, and preferably a water immiscible organic solvent. The orthohydroxyarylaldoximes, or orthohydroxyarylketoximes commonly have Formula (1),wherein R<1 >is hydrogen or a hydrocarbyl group, and R<2 >is an ortho-hydroxyaryl group; and the esters substituted with a hydroxyl group are of Formula (2),wherein one of R<7 >or R<8 >is a substituted hydrocarbyl group with at least one hydroxyl group and the other is an optionally substituted hydrocarbyl group. Preferred orthohydroxyarylaldoximes are 5-(C9 to C14 alkyl)-2-hydroxybenzaldoximes and preferred orthohydroxyarylketoximes are 5-(C9 to C14 alkyl)-2-hydroxyacetophenone oximes. Preferred esters substituted with a hydroxy group are highly-branched alkyl esters comprising from 5 to 51 carbon atoms, wherein the hydroxy group resides on R<8>. Processes for the extraction of metal values from aqueous acidic and ammoniacal solutions are also provided.
Patent KR-20010112288-A (KR)
IPC: C10L1/02
Filed: 2000-02-24
Abstract: 본 발명에 따른 내연기관용 이중연료는, 주연료로서 아세틸렌과, 에탄올, 메탄올 혹은 어떠한 다른 알콜과 같은 알콜, 또는 C 1 - C 20 탄소사슬을 포함한 그룹으로부터의 알콜; 디메틸에테르, 디에틸에테르, 메틸 t-부틸에테르, 에틸 t-부틸에테르, t-아밀메틸에테르, 디이소프로필에테르와 이와 유사한 것을 포함한 그룹으로부터의 에테르; 메틸포메이트, 메틸아세테이트, 에틸아세테이트, 메틸프로피오네이트, 에틸프로피오네이트와 이와 유사한 것을 포함한 그룹으로부터의 저분자량 에스테르; 또는 무기증류알콜(mineral spirits)과 이와 유사한 다른 적당한 가연성 유체로부터 선택된 하나 이상의 유체와 같은 가연성 연료를 포함한다. 이러한 이중연료를 이용한 내연 시스템은 일반적으로 시동과 작동을 위한 2단계 공정을 이용하고 기체- 또는 액체- 냉각으로 작동될 수 있으며, 탄화수소, CO, NOx 및 SOx 배출이 실질적으로 제거된 상태로 환경적으로 매우 완전하다.
Patent KR-20020021638-A (KR)
Title: 로드 셀
IPC: G01L1/22
Filed: 2001-05-30
Abstract: 이 로드 셀 (1) 은, 기왜체 (2) 와, 브리지 회로와, 피막 (10) 을 구비하고 있다.     브리지 회로는, 기왜체 (2) 에 설치된 변형 게이지 (7) 로 이루어진다.     피막 (10) 은, 기왜체 (2) 와는 다른 금속재료로 이루어지는 부재가 부착되는 기왜체의 부위와 기왜체 (2) 의 변형 게이지 (7) 가 부착되는 부위를 제외한 변형 발생 부위를 적어도 덮도록 기왜체 (2) 에 형성됨과 동시에 유리전이온도가 40℃ 이상인 수지로 이루어지는 도막층을 포함하며, 전기절연성을 갖는다.
Patent KR-20020011428-A (KR)
Title: A process for the preparation of derivatives of Ruscus aculeatus steroid glycosides
IPC: C12R1/685
Filed: 2000-05-26
Abstract: A process for the preparation of desglucodesrhamnoruscin which comprises the hydrolysis of Ruscus Aculeatus steroid glycosides (ruscosaponins) through fermentation of a substrate containing said glycosides by means of fungi of the aspergillus niger species.
Patent KR-20030052938-A (KR)
Title: The prevention system of collapse steeped slope
Inventor: JUNG SEONG UN
IPC: E02D17/20
Filed: 2001-12-21
Abstract: PURPOSE: A slope failure preventive system is provided to protect human life, property or facilities by preventing the breaking of a slope. CONSTITUTION: The slope failure preventive system comprises: an LD system formed by fixing a case(2) with a built-in optical sensor(1) to a post(3) fixed on a slope, and connecting posts(3) with an optical cable(5) provided with an optical fiber; an FBG system formed by rolling up an optical sensor(1), then installing in the case(2), connecting the optical sensor(1) in the case(2) with an LED driving unit, an FBG and an FP, connecting the FP with a pressure regulator and a PD, connecting the pressure regulator with an amplifier, a comparator and a CPU, and connecting the CPU with an LED driving unit and an FP; and an R-OTDR system formed by connecting a pulse generator with an LD, connecting an LD with a photoelectric coupler connected with a photoelectric converter, connecting a photoelectric converter with an A/D converter and a signal processing unit, and connecting the signal processing unit with a pulse generator.