baber/WOPTO huggingface dataset:
Patent KR-20030047065-A (KR)
Title: Cam notch for sensing a cylinder and method for the same
Inventor: KIM HYEON YONG
IPC: G01B21/22
Filed: 2001-12-07
Abstract: PURPOSE: A cam notch for detecting a cylinder and a detecting method thereof are provided to rapidly detect the cylinder by forming at least two notches in a cam of a cam shaft. CONSTITUTION: A crank signal and a cam signal are obtained(110). Then, a crank angle is determined according to the cam signal(120). If the crank angle is 15 degrees, it is determined that a cylinder is a first cylinder(131). If the crank angle is 30 degrees, it is determined that a cylinder is a third cylinder(132). If the crank angle is 40 degrees, it is determined that a cylinder is a fourth cylinder(133). If the crank angle is 90 degrees, it is determined that a cylinder is a second cylinder(134). At least two notches are formed in a cam of a cam shaft.
Patent KR-20030047508-A (KR)
Inventor: SHIN JONG HUN
IPC: F16D3/26
Filed: 2001-12-11
Abstract: PURPOSE: A universal joint shaft is provided to easily produce and to reduce noise by arranging a connecting member to transfer rotating force between shafts and to be folded axially. CONSTITUTION: A connecting member(60) is arranged between the tips of a driving shaft(40) and a slave shaft(50) to transfer rotating force between the tips and to be folded axially at the same time. Thereby, the productivity is improved by connecting the driving shaft with the slave shaft through the simple connecting member. Moreover, the generation of noise is suppressed by removing the clearance and the friction in the rotating direction and the axial direction of the connecting member.
Patent KR-20030048608-A (KR)
Title: Commission system for supporting artist
Inventor: FUJINO KOTARO
Filed: 2001-12-12
Abstract: PURPOSE: A support arranging system for an artist is provided to offer a listener an opportunity for supporting fund to a favorite nameless artist and supporting activity of the nameless artist, and to offer the nameless artist an environment to do a creative work by receiving support money. CONSTITUTION: A vote for the registered artist or article is received from candidates(S801). A charge is imposed to the candidates according to the votes by referring to a preset vote price(S802). The votes are collected to each artist or article(S803). The support money is distributed to the artist or the artist creating the article according to the votes by referring to a preset ratio(S805).
Patent KR-20030048948-A (KR)
Title: Wire and wireless switching hub
Inventor: PARK JONG HUN
IPC: H04L12/28
Filed: 2001-12-13
Abstract: PURPOSE: A wire/wireless switching hub is provided to use advantages of an Ethernet method and a wireless method by combining a wireless network with a wire network. CONSTITUTION: An 802.11b PC card(10) transmits and receives wireless data. An MPU(Microprocessor Unit)(20) is connected with the 802.11b PC card(10) through a PCMCIA(Personal Computer Memory Card International Association) and converts the wire data and wireless data. An Ethernet card(30) is connected to a terminal and the MPU(20) by wire and maintains transmission speed of data transmitted through each wire by a switching control. A memory(40) stores data required for operating the MPU(20). LEDs 1 and 2 display a transmission state of data.
Patent KR-20020052952-A (KR)
Title: Valve timing control device
Inventor: FUKUHARA KATSUYUKI
IPC: F01L1/344
Filed: 2001-12-21
Abstract: PURPOSE: A valve timing control device is provided to use several kinds of lock pins and to suppress noise caused by releasing a lock in low oil pressure by discharging oil with air being first break pressure for lock releasing in starting an engine. CONSTITUTION: A valve timing control device is composed of a purge path(24) arranged at a vane of a rotor(6) provided with a valve. The purge path communicates a retardation side oil hydraulic pressure chamber(10) with an accommodation hole(14). Oil pressure from an oil pump in starting an engine is supplied to the retardation side oil hydraulic pressure chamber. Oil containing air is discharged out in a discharging hole(17) through an exhaust pressure section(14a). After the air is discharged, residual oil pressure is generated by oil supplied to the exhaust pressure section. The residual oil pressure obstructs lock releasing by increasing lock releasing oil pressure. Oil pressure in the retardation side oil hydraulic pressure chamber is supplied through the purge path to the accommodation hole to generate oil pressure acting to delay a release operation.
Patent KR-20030055721-A (KR)
Title: Method and apparatus for inserting/searching watermarking digital image using discrete wavelet transform
Inventor: KIM YEONG SIK
IPC: H04N5/913
Filed: 2001-12-27
Abstract: PURPOSE: A method and system for inserting/detecting a digital video watermark using discrete wavelet transform are provided to insert the watermark into a digital image and detect the watermark from the image using the human visual system and discrete wavelet transform. CONSTITUTION: The original image is discrete-wavelet-transform to be split into a predetermined number of bands(102), and discrete wavelet transform coefficients of the bands are aligned. The energy of each of the bands is calculated using the aligned corresponding discrete wavelet transform coefficient(104), and spaces and lengths of bands into which watermarks are inserted are determined(106). The watermarks are generated and inserted into the band(110)s, and a human visual system weight is applied to the bands(112). The image to which the human visual system weight has been given is inverse-discrete-wavelet-transformed to generate an image including the watermarks(114).
Patent KR-20030058330-A (KR)
Inventor: CHOI CHEOL UNG
IPC: G02F1/1343
Filed: 2001-12-31
Abstract: PURPOSE: A pixel electrode for a liquid crystal display is provided to secure a distance between the pixel electrode and a data line nearby a cutting line, thereby removing laser defects due to a narrow margin of a laser beam generated in repairing the pixel electrode. CONSTITUTION: Pixel electrodes(76) are formed at pixel areas defined by crossing data lines and gate lines, separated from the data lines. Grooves(100) are formed on both edges of the pixel electrode following a cutting line(L). The grooves are longer than 2μm to widen a distance between the pixel electrode and the data lines nearby the cutting line.
Patent KR-20030058621-A (KR)
Title: Adhension method of braket and panel
Inventor: MOON HYOUNG SUK
IPC: B29C65/06
Filed: 2001-12-31
Abstract: PURPOSE: A method for adhering a bracket and a panel is provided to adhere the bracket to the panel by melting the bracket at a contact surface of the bracket and the panel with frictional heat generated by vibration pressure without other subsidiary materials, to reduce working time and manufacturing cost, and to adhere the bracket and the panel with holding the surface of a product smooth. CONSTITUTION: A method for adhering a bracket(2) and a panel(1) transfers and installs the panel to a lower vibration gluer(11), transfers and mounts the bracket to an upper vibration gluer(10), and vibrates the vibration gluer left and right for four second in an oscillation frequency of 250 time/second and the vibration width of 0.8mm with pressing the vibration gluer in the pressure of 60¯80kg/cm2 to install the bracket to a side of the panel.
Patent KR-20010071748-A (KR)
IPC: F01D17/24
Filed: 1999-07-02
Abstract: A controlling system having a controller which acts on a controlled system as a function of a manipulated variable and a number of controller parameters is intended to provide a given control quality and a given control response in all operating states of the controlled system. For this purpose, the response characteristic of the controlled system is determined in a given time window during operation of the controller by comparing a wavelet transformation of the temporal response of the manipulated variable with a wavelet transformation of the temporal response of a controlled variable of the controller. An instant assigned to the respective wavelet transformation is detected, and the or each controller parameter is set as a function of the response characteristic.
Patent KR-20010088842-A (KR)
IPC: G06T7/40
Filed: 2000-07-24
Abstract: 회전 가변 형식의 제 1 텍스처 표시를 갖는 영상 파일을 수신하고 텍스처 표시를 회전 불변 형식의 변형된 텍스처 표시로 변환할 수 있는 영상 처리 장치가 개시된다. 영상 처리 장치는 제 1 텍스처 표시의 회전 가변 텍스처 변수들을 분석하고, 변수들을 선택된 화소에 대한 원형 고리들에 배치된 회전 불변 텍스처 변수들 또는 선택된 화소를 통해 연장하는 반지름 선(radial line)들 따라서 배치된 회전 불변 텍스처 변수들로 변환하는 영상 프로세서를 구비한다. 제 2 실시예에서, 영상 프로세서는 영상 파일의 회전된 버전의 각도 회전(angular rotation)을 결정하는 반지름 선들의 각도 분리(angular separation)를 사용할 수 있다.
Patent KR-20020022046-A (KR)
IPC: G01M3/24
Filed: 2000-09-13
Abstract: 음향 표면파를 이용하여 튜브면의 크랙을 비파괴 조사하기 위한 EMAT 장치는 조사될 튜브면을 향하는 작동면을 구비하는 펄스자석을 구비하고 있다. 수신 EMAT 코일은 작동면위에 있고, 전송 EMAT 코일은 수신 코일의 반대면에 있다. 전송 EMAT 코일은 튜브면 위로 주사하기 위한 주사면을 구비하고 있다. RF 신호를 생성하여 전송 EMAT 코일로 전송하기 위한 전송기가 튜브를 따라 전송되는 음파신호를 생성하기 위해 구비되어 있고, 전송된 음파는 튜브에 크랙을 만나면 반사파를 생성하게 되며, 반사파는 수신 EMAT 코일에서 반사신호를 생성하게 된다. 수신기는 반사신호를 수신하기 위하여 수신 EMAT 코일에 연결되어 있다. 디지털 컴퓨터는 반사신호를 수신하고 처리하기 위해 수신기에 연결되어 있고, 디스플레이는 반사파와 종국의 반사신호를 생성하는 튜브의 크랙에 관한 정보를 나타낸다.
Patent KR-20010102491-A (KR)
IPC: B01J27/053
Filed: 2000-03-02
Abstract: 본 발명은 철 및 임의로 다른 특정 금속을 포함하는 지지 촉매와 아산화질소(N 2 O)를 접촉시키는 것을 포함하는, N 2 O를 질소와 산소로 전환시키는 방법 및 이 방법에서 사용된 촉매에 관한 것으로, 여기서 촉매는 
     (a) 수산화지르코늄을 임의로 결합제 및 윤활제 존재 하에서 철염 및 지르코늄염의 용액과 접촉시키는 것을 포함하는 페이스트의 제조 단계, 
     (b) 단계 (a)의 페이스트로부터 조형 입자를 성형하는 단계, 
     (c) 단계 (b)의 조형 입자를 건조시키는 단계, 
     (d) 건조된 단계 (c)의 조형 입자를 400 ℃ 이상의 온도에서 하소시키는 단계, 및 
     (e) 코발트, 니켈, 로듐, 팔라듐, 이리듐, 백금, 망간, 란타늄 및 세륨으로 이루어진 군으로부터 선택된 1종 이상의 금속을 단계 (a)에 또는 하소된 단계 (d)의 조형 입자에 임의로 첨가하는 단계에 의해 제조된다.
Patent KR-20010108375-A (KR)
Title: Method for optimizing and monitoring weft insertion in power looms
IPC: D03D47/34
Filed: 2000-03-22
Abstract: A method for monitoring the cycle of the weft insertion into a weaving machine. The weft yarn passes a yarn brake and a yarn force sensor and the force acting on the weft yarn is measured in a known fashion and the reaction force of the yarn is converted by a pressure sensitive element into an electrical signal. The electrical signal outputted by the yarn force sensor is electronically amplified in an evaluation unit, is evaluated and is transmitted to an indicator informing the operator of the development of the weft insertion and of disturbances and corrections. For this purpose, the evaluation unit is connected via a data line with a machine control unit. Evaluation unit is supplied with time signals from the machine control unit associated with further machine functions participating at the weft insertion, e.g. the momentary angular position of the main shaft of the machine. The machine control unit receives monitoring signals of the yarn force evaluation via the data line, e.g. for immediate stoppage in case of a yarn breakage occurring during the weft insertion, or to activate a machine related alarm system in case of a disturbance needing the interference by an operator.
Patent KR-20020002408-A (KR)
Title: Method and apparatus for preparing monofunctional aromatic haloformates
IPC: C07C68/02
Filed: 2000-02-08
Abstract: The specification describes a continuous process for the preparation of monofunctional aromatic chloroformates (MAC) having the structure (I) wherein n is an integer from 1 to 5, and R<SUB>1 </SUB>represents hydrogen, a branched or unbranched alkyl group having from 1-15 carbon atoms, an aryl group which may be substituted or unsubstituted, a cycloaliphatic group which may be substituted or unsubstituted, or an arylalkyl group which may be substituted or unsubstituted.
Patent KR-20010108482-A (KR)
IPC: C02F11/147
Filed: 1999-04-09
Abstract: 본 발명은 1종 이상의 수용성 양이온성 중합체 응집제의 분산액 유효량으로 산업 폐수 또는 지료를 정화, 탈수시키거나 그 보류도 및 탈수성을 개선시키는 방법에 관한 것인데, 개선점은 상기 폐수 또는 지료에 대하여 25퍼센트 이상의 농도를 갖는 상기 중합체의 첨가를 포함하는 것이다.  바람직하게는, 상기 산업 폐기물은 식가공 폐수, 유성 폐수, 제지공장 폐수 및 무기물 오염 폐수이다.  상기 지료는 수성 셀룰로오스 현탁액일 수 있다.
Patent KR-20020010602-A (KR)
Title: 작동액
IPC: C10M169/04
Filed: 2000-04-11
Abstract: (a) 마그네슘 살리실레이트 0.001 내지 5 중량%, (b) 징크 디티오포스페이트 0.01 내지 8 중량%, 임의로 (c) 총 탄소수 4 내지 70 의 디카르복실산 또는 이의 모노- 또는 디-에스테르 또는 이의 모노-아미드 또는 디-아미드 또는 이미드 0.001 내지 5 중량%와 조합된 윤활제 베이스 오일을 함유하는 작동액; 및 마그네슘 살리실레이트, 징크 디티오포스페이트 및 임의로 총 탄소수 4 내지 70 의 디카르복실산 또는 이의 모노- 또는 디-에스테르 또는 이의 모노-아미드 또는 디-아미드 또는 이미드를 함유하는 첨가제 팩키지.
Patent KR-20010113821-A (KR)
Title: 디스크 드라이브 구동기용 조절 고성능 하드웨어 제어기
IPC: G11B5/596
Filed: 2000-04-21
Abstract: 본 발명은 디스크 드라이브(100)의 서보 제어를 제공하는 장치 및 방법에 관한 것이다.  구동기(110)는 디스크(108)의 대응하는 어레이에 인접한 헤드(118)의 어레이를 지원한다.  음성 코일 모터, VCM(124)은 대강 구동기 위치 제어를 제공하고, 마이크로구동기, MA(125)는 세밀한 위치 제어를 제공한다.  고성능 하드웨어 입력/출력 제어기로서 특성화되는 서보 엔진(154)은 선택된 헤드가 대응하는 디스크 표면상에 원하는 트랙을 수반하도록 하기 위해 각각의 VCM, MA에 대한 제어 신호 Y1(k) 및 Y2(k)를 생성한다.  상기 서보 엔진은 각각의 헤드/디스크 조합에 대해 조절된 계수들을 이용하고, 상기 계수들은 각 헤드(216)에 대한 출력 응답을 획득하고, 각 헤드(218)에 대한 출력 응답에 관련된 계수들을 선택하고, 비휘발성 메모리(220)의 계수들을 저장함으로써 선택된다.  적절한 계수들은 그후에 각 헤드가 차례로(238) 선택될 때 서보 엔진의 휘발성 메모리(176, 194)로 로딩된다.
Patent KR-20030060559-A (KR)
Inventor: KANG SUOK JA
IPC: F16L23/00
Filed: 2002-01-09
Abstract: PURPOSE: A flange for connecting pipes is provided to easily connect the pipes, and to prevent a water leakage caused by the distortion of the pipe and water pressure. CONSTITUTION: A first flange(1) and a second flange(2) have a plurality of bolt holes(9') and a plurality of sealing holes(8) fit into both sides of a pipe. A groove(5) is formed at the upper part of the first flange. A guide rod(3) is welded to the groove, and is inserted into a position fixing groove(6) formed at the upper part of the second flange. A plurality of insertion grooves(7) is formed at the bottom of the first flange. A plurality of support bars(4) are welded to grooves(5') formed at the bottom of the second flange, and are inserted into the insertion grooves.
Patent KR-20020023361-A (KR)
Title: Aloe Soju(Soju Aloe)
Inventor: LIM SUK KU
IPC: C12G3/04
Filed: 2002-01-18
Abstract: PURPOSE: Provided is a functional soju containing aloe extracts which relieve hangover and headache and promote smooth bowl movement. Therefore, it has improved flavor and taste and causes no hangover and headache. CONSTITUTION: The preparation method comprises the steps of: extracting aloe and additives(date, schizandra, licorice, angelica root, dry matters, Cnidium and apple juice); making undiluted aloe solution with the above extracts; mixing soju and the undiluted aloe solution; and controlling the mixing ratio(mixing gel with solution, or mixing solutions only).
Patent KR-20030063026-A (KR)
IPC: G09G3/36
Filed: 2002-01-22
Abstract: 본 발명은 데이터 신호 산란 변환을 위한 장치와 방법에 관한 것이다.  이 장치는 산란 멀티플렉서, 디지털-아날로그 변환부, 산란 디멀티플렉서를 포함하고 있다.  산란 멀티플렉서는 p개의 디지털 데이터 신호를 수신하고 상기 p개의 디지털 데이터 신호 중에서 q번째 디지털 데이터 신호를 출력한다.  상기 디지털-아날로그 변환부는 상기 q번째 디지털 데이터 신호를 디지털-아날로그 변환하여 아날로그 데이터 신호를 출력한다.  상기 산란 디멀티플렉서는 p개의 출력 단자를 구비하며, 상기 아날로그 데이터 신호를 상기 p개의 출력 단자 중에서 q번째 출력 단자로 출력한다.  디지털-아날로그 변환부로부터 출력되는 출력 오프셋 전압이 많은 데이터선에 걸쳐서 산란되므로 이 출력 오프셋 전압으로 인한 비정상적으로 어둡거나 밝은 색상을 갖는 바람직하지 않는 점들을 감지하기 어렵게 한다.
Patent KR-20030064471-A (KR)
Title: Patterning Method For Fabrication Of Semiconductor Device
Inventor: KIM YEONG DAE
IPC: H01L21/027
Filed: 2002-01-28
Abstract: PURPOSE: A patterning method for semiconductor fabrication process is provided to form the pattern of a material layer having different line widths by forming the first and the second exposure processes. CONSTITUTION: The first patterning region and the second patterning region are defined on a wafer(100). A material layer is formed on the wafer(101). A photoresist layer is formed on the material layer(104). The first patterning region of the photoresist layer is exposed(106). The second patterning region of the photoresist layer is exposed(107). A photoresist pattern is formed by developing the exposed photoresist layer(109). The pattern of the material layer is formed by etching the exposed material layer. The pattern of the material layer is exposed by removing the photoresist pattern(113,117).
Patent KR-20020028985-A (KR)
Inventor: KIM GI SOO
IPC: E21D9/00
Filed: 2002-03-11
Abstract: PURPOSE: An installation method of a ground subsidence-proofing and waterproofing wall for an underground structure is provided to execute a construction work easily and to complete large quantity of construction works effectively for a short term. CONSTITUTION: The installation method of a ground subsidence-proofing and waterproofing wall for an underground structure comprises the steps of: when installing a ring or rectangular H-beam(8) by pressing an excavator(7) with a propulsion jack(1) and excavating the ground for installing an underground structure, attaching a ground subsidence-proofing woven fabric plate(7) temporarily inside a rear working tub(3) of the rear end of the excavator(4), attaching woven fabric bags(9,9') for ground works attached with an anti-counterflow valve(10) connected with a hose for supplying a waterproofing-cum-subsidence proofing agent intermittently on a location for installing H-beams under the woven fabric plate(7), installing beams(8) on the spot where the woven fabric bags(9,9') are attached at regular intervals, connecting and welding upper ends(8') of the beams by a steel plate(11), then filing up each beam with a bearing plate to form an underground structure bearing wall, installing an anti-counterflow valve(14) connected to an outer hose for injecting a waterproofing-cum subsidence proofing agent to pass through a steel plate(14) and a strut in a space(13) formed among the woven fabric plate(7), the steel plate(11) and woven fabric bags(9,9'), injecting a waterproofing-cum-subsidence proofing agent through anti-counterflow valves(10,14) connected to the outer hose to fill up woven fabric bags(9,9') and the space(13), then hardening to form a ground subsidence-proofing and underground water anti-discharging wall.
Patent KR-20030073806-A (KR)
Title: Aerogel type Platinum-Ruthenium-Carbon Catalyst, Method to Manufacture the said Catalyst and Direct Methanol Fuel Cell comprising the said Catalyst
Inventor: KIM IL GON
IPC: H01M8/10
Filed: 2002-03-13
Abstract: PURPOSE: Provided are an aerogel type platinum-ruthenium-carbon catalyst excellent in electrode activity and durability, and a direct methanol fuel cell using the aerogel type platinum-ruthenium-carbon catalyst. CONSTITUTION: The aerogel type platinum-ruthenium-carbon catalyst contains 5-70wt% of platinum and ruthenium and the balance of carbon. And the aerogel type platinum-ruthenium-carbon catalyst is produced by a process comprising the steps of: injecting a metal salt and a basic catalyst into an organic gel material solution; adding a basic amine solution to the produced solution and adjusting pH to make sol; sealing the produced sol and aging for 1-20 days at 40-90deg.C to synthesize and stabilize gel; making aerogel by removing solvent from the produced gel through a supercritical dry method; carbonizing the dried aerogel under the inert atmosphere and hydrogen-reducing. And the direct methanol fuel cell uses the aerogel type platinum-ruthenium-carbon catalyst as an anode catalyst.
Patent KR-20030014099-A (KR)
Title: Apparatus for Measuring Charged Particle and Method for Measuring thereof
Inventor: ARITA JUNICHI
IPC: G01N27/62
Filed: 2002-03-23
Abstract: PURPOSE: To provide a highly-sensitive charged particle measuring device capable of measuring efficiently the charged particles in an extremely low level having an identified charged-particle nuclide. CONSTITUTION: This charged particle measuring device is provided with a measuring sample 2 and a semiconductor detector 1 in a measuring chamber 7 having an openable/closable sealing door 15 installed thereon. The device is equipped with a radiation measuring circuit 30 connected to the semiconductor detector 1 and constituted from a preamplifier 30c, a linear amplifier 30d and a wave height analyzer 30e, a charged-particle emission quantity operation device 40 for quantitating the charged particles from the measured value, and a display for displaying the analysis result. The device is also provided with a depressurizing evacuation piping system in the measuring chamber 7, and a clean gas supply piping system for supplying the clean gas to replace therewith.
Patent KR-20030077354-A (KR)
Title: Induction motor rotor time constant estimation apparatus
Inventor: BYUN SEONG HUN
IPC: H02P21/00
Filed: 2002-03-26
Abstract: PURPOSE: An apparatus is provided to reduce an error of estimation of time constant of rotor by estimating, through the use of a least square approximation, the time constant where the stored error becomes zero. CONSTITUTION: An apparatus comprises a rotor time constant estimator(80A) for receiving the value of error obtained by comparing the flux voltage calculated from the output of a current control unit(30A) and parameters of an induction motor and the flux voltage calculated from the current of error between a command flux current and a command torque current and an actual flux and an actual torque current, receiving an initial value(Tro) of rotor time constant, and estimating a rotor time constant(Tr) by performing a least square approximation to the received values.
Patent KR-20030082780-A (KR)
Title: A steel lid for preventing substance from flowing in
Inventor: MUN YEONG JUN
IPC: E02D29/12
Filed: 2002-04-18
Abstract: PURPOSE: A manhole is provided to prevent the inflow of impurities and to open and close a cover easily by preventing the movement of a cover. CONSTITUTION: The manhole for preventing the inflow of impurities contains an outward end projection(1) formed on the outer side of a cover to place a backing projection of a main body, a guide wall formed directly below the outward end projection(1) and provided with an inclined plane fitted with a projection of the main body to be slid and a movable hole with a setting hole for stopping the projection, a projected frame(9a) fitted to the backing end projection of the main body and formed on the front end of the guide wall, and an inclined frame(2) formed on the outside of the projected frame(9a) contacted with an upper side of the backing end projection.
Patent KR-20030084119-A (KR)
Title: Method for cutting glass and apparatus for the same
Inventor: BAEK GWANG YEOL
IPC: C03B33/02
Filed: 2002-04-25
Abstract: PURPOSE: A method and a device for cutting a glass are provided to improve the quality of the section of the glass and to carry out the glass cutting more quickly. CONSTITUTION: The method for cutting a glass comprises the steps of: moving a laser beam along an imaginary cutting line of a glass to be cut while irradiating the laser beam to the imaginary cutting line to heat the glass; and spraying a coolant to the heated glass to cut the glass, wherein the glass is partitioned into a front zone, a middle zone and an end zone along the imaginary cutting line, the moving speed and energy of the laser beam is gradually increased from the front zone to the middle zone and is gradually reduced from the middle zone to the end zone. The device comprises: a first beam-generating part(13a) for irradiating the laser beam to form a cutting line to a glass(11) to be processed; a second beam-generating part(15a) for irradiating a first laser beam to the glass(11) in order to heat the glass(11) along the cutting line; a coolant-spraying means(14a) for spraying a coolant to the glass heated by the second beam-generating part(15a) while cutting the glass(11).
Patent KR-20030085412-A (KR)
Title: Ethernet passive optical network and l2 switching method
Inventor: KIM A JEONG
IPC: H04L12/28
Filed: 2002-04-30
Abstract: PURPOSE: A method for switching Ethernet passive optical network and a layer 2 is provided to realize subscriber-to-subscriber communication as well as ONU-to-ONU within the layer 2. CONSTITUTION: A predetermined PHY ID is granted to each service port or subscriber port(S1,...,S9) connected with each ONU(Optical Network Unit)(450,510,550). The PHY ID is tagged and filtered to a transmission frame by using PHY ID tagging/detagging layers(455,515,555). An Ethernet frame has the predetermined port connected with the ONU as a destination is transmitted through a port of an L2(Layer2) switch(440) assigned to the port in case that an OLT(Optical Line Termination)(410) receives the Ethernet frame.