baber/WOPTO huggingface dataset:
Patent KR-20020026634-A (KR)
Title: A Sagnac tunable optical drop/pass filter system for WDM
Inventor: BAEK SEUNG HWAN
IPC: H04B10/25
Filed: 2000-10-02
Abstract: PURPOSE: A Sagnet-type tunable optical drop/pass filter system for WDM(Wavelength Division Multiplexing) communication is provided to pass all of the inputted signals to the next node without reinserting the signals extracted at a node by configuring a WDM tunable selector using a brag diffraction grating. CONSTITUTION: The first optical signal add/drop multiplexer(30) distributes an optical signal(s1), inputted through a fiber-optic or plane optical waveguide(21) from an optical signal generator(10) generating many wavelengths, into two optical signals(s2,s3). One(s2) of the two optical signals is outputted to the second optical signal add/drop multiplexer(60) through a fiber-optic or plane optical waveguide(23). The other distributed optical signal(s3) is outputted to a pass part(50) through a fiber-optic or plane optical waveguide(24). The optical signal(s2) inputted to the second optical signal add/drop multiplexer(60) is distributed into a clockwise optical signal(s4) and a counterclockwise optical signal(s5) again. The distributed signals(s4,s5) are inputted to a wavelength selector(80), which reflects only a specific wavelength, and fed back clockwise and counterclockwise respectively. The optical signal(s6,s7) fed back from the wavelength selector(80) are combined by the second optical signal add/drop multiplexer(60) and outputted to the second receiving part(70).
Patent KR-20010000586-A (KR)
Inventor: KOO JA HYUK
IPC: G06F15/16
Filed: 2000-10-07
Abstract: PURPOSE: A download method using online communication is provided to access a web site, search a desired program, and to upload a user's program into the web site with a condition and a price. CONSTITUTION: If a user is a member, he/she is allowed to access the web site(S1-S4). It is determined at the web site whether member information management is identified(S5), an item is registered(S11), the item is downloaded(S14), or money is obtained(S17). When the item is registered in the web site, a certain period, a condition and a price for the item is registered therein(S12,S13). In case of the download of the item, the user searches the item to decide the condition and the price, and then downloads the desired item immediately or makes a reservation of the download(S15,S16). If the user wants to identify the management of his/her information, the user selects the previews of money, upload and download, and downloads reserved items at one time(S6-S10). The user watches an advertisement, provides a mail advertisement or recommends an ID of another user to obtain the money(S18,S19).
Patent KR-20020028652-A (KR)
Title: Disc-tray eject appratus of optical record/playback apparatus and install method thereof
Inventor: KIM CHEON GYEONG
IPC: G11B33/00
Filed: 2000-10-11
Abstract: PURPOSE: A device for ejecting a disk tray of an optical recording and reproducing apparatus and an installation method thereof are provided to form a head part of an exposed end of a lever fixing pin to be integrated with a chassis, in a state that the lever fixing pin is coupled to pass an eject lever and a lower part of the chassis. CONSTITUTION: In a chassis(11) of which one side is open, a disk tray(21) supports an optical disk and is inserted to inside the chassis(11) to be ejected. An eject lever(53) arranged in a lower part of the disk tray(21) along the entrance direction of the disk tray(21) is contacted with the disk tray(21) before the disk tray(21) is fully inserted, and sliding-moves lengthwise integrally with the disk tray(21). And the eject lever(53) has a long-hole shape of pin inserting hole(55). A spring fixing unit(27) is projected from a lower part of the chassis(11). An eject spring(65) of which on end is fixed on the spring fixing unit(27) and the other end is fixed on the eject lever(53) is extended when the disk tray(21) and the eject lever(53) are contacted, and presses the eject lever(53) in a tray ejection direction with accumulated elasticity. A lever fixing pin(61) has head parts(62b,62d) extended compared with the pin inserting hole(55), a body part(62a) having a minimized diameter to be inserted in the pin inserting hole(55) and an axis diameter part(62c) having a minimized diameter compared with the body part(62a). The axis diameter part(62c) sequentially passes the pin inserting hole(55) and the perforating holes, thereby the lever fixing pin(61) is integrally fixed on the chassis(11).
Patent KR-20020035277-A (KR)
Inventor: LEE GYE YEONG
IPC: C21C7/068
Filed: 2000-11-06
Abstract: PURPOSE: The present invention relates to a refining method of extra low carbon steel, and more particularly a refining method of extra low carbon steel with a carbon concentration less than 150 ppm wherein instead of bottom-blowing, a gas injection lance nozzle is positioned at a place adjacent to slag layer that is formed on the surface of molten steel to top-blowing, thereby directly stirring slag resulting in the effective formation of ladle slag. CONSTITUTION: In a refining method of extra low carbon steel where an injection lance is submerged in hot metal poured into ladle from refining furnace to form ladle slag by bubbling and then decarburization and deoxidation are achieved in vacuum stream degassing process, the gas injection lance for bubbling is submerged in molten steel at a position satisfying the inequality of d/L<=0.17 where L is depth of molten steel, and is the distance from the surface of molten steel to the lower end of the gas injection lance, and stirring gas is injected to molten steel in an amount of 0.03 to 0.2Nm¬3/hr-ton. The gas injection lance has two holes at the lower end part thereof in horizontal direction and placed within a 0.25-0.75r of whole radius(r) of ladle. In the method before vacuum degassing, the formulation of ladle slag is T.Fe+MnO 6-24wt% and the percent ratio of CaO/Al2O3 is 1.1-2.5, whereas after deoxidation the formulation of ladle slag is T.Fe+MnO 1.5-18wt% and the percent ratio of CaO/Al2O3 is 1.1-2.5.
Patent KR-20020035937-A (KR)
Title: web multi screen education solution
Inventor: PARK DONG BAL
Filed: 2000-11-07
Abstract: PURPOSE: A solution for the web video multimedia education is provided to realize interactive educational broadcasting, to enhance the parents' recognition on education by making the parents check up the study schedule and contents, and to reduce the cost for private education. CONSTITUTION: A user and a teacher participate in a class via a video camera. The tele-education system is realized by the 1:5 video classroom system. A textbook is offered through a screen. The user asks a question through an electronic blackboard, and the teacher answers the question through the electronic blackboard. A chatting program is included in the system to analyze the propensity of the user and to manage grades of respective users. Broadcasting is performed interactively. The study schedule and the educational contents are informed to parents. The parents participate in the educational process. Since the classroom is managed interactively, the educational effect is promoted. The system is easy for a SOHO(Small Office Home Office) founder to start business with.
Patent KR-20020038070-A (KR)
Title: Method for treating wastewater containing acetic acid and apparatus thereof
Inventor: CHOI YEONG
IPC: C07C53/08
Filed: 2000-11-16
Abstract: PURPOSE: A method for treating wastewater containing acetic acid and apparatus therefor are provided to recycle acetic acid discharged from chemical industries into methyl acetate. CONSTITUTION: According to the method, wastewater contained acetic acid is passed through a reactor(1)(2) packed with activated carbon for adsorbing acetic acid. And water and methanol are injected to desorb adsorbed acetic acid. Desorbed acetic acid and methanol are flowed to cation exchange resin catalyst of lower part of the reactor(1)(2) for esterification thereof. Methyl acetate of esterification product is separated by a separation tower(4). And separated methyl acetate is condensed in a condenser(5). Esterification process is operated at 50-98 deg.C.
Patent KR-20020040205-A (KR)
Title: Shock absorber
Inventor: LEE HAE WON
IPC: F16F9/32
Filed: 2000-11-24
Abstract: PURPOSE: A shock absorber of a vehicle is provided to actively absorb impact generated in a lower stroke high-frequency wave range and to improve riding feeling. CONSTITUTION: A shock absorber of a vehicle comprises a piston valve(25) dividing a cylinder shaped tube(22) into an extension chamber(23) and a compression chamber(24); orifice holes(26,27) communicating the extension chamber with the compression chamber; a disk(28) opening or closing the orifice holes; a disk ring(29) formed on the piston valve with a disk guide(30); a piston rod(31) fixed in the middle of the piston valve; a first communicating hole(32) formed on a lower portion of the piston rod by having a vertical hole(32a) and a horizontal hole(32b); a valve body(33) installed on a lower portion of the piston rod by having a space unit(34); and a second communicating hole(35) formed on the space unit of the valve body.
Patent KR-20010061956-A (KR)
Inventor: MIHARA ICHIRO
IPC: H01L23/31
Filed: 2000-11-24
Abstract: PURPOSE: To obtain a columnar electrode having upper surface of an expected shape being exposed by polishing after forming a sealing film in a semiconductor device called CSP. CONSTITUTION: A sealing film 13 is formed and polished on the upper surface to expose the upper surface of a columnar electrode 12 of soft metal. A roll over 12a is generated on the upper surface of the columnar electrode 12 by polishing. Subsequently, the upper surface of the columnar electrode 12 including the roll over 12a is etched and the roll over 12a is removed thus obtaining a columnar electrode 12 having upper surface of an expected shape.
Patent KR-20010062034-A (KR)
Inventor: MATSUMOTO KIYOSHI
IPC: G06F3/048
Filed: 2000-12-01
Abstract: PURPOSE: To provide a digital television broadcast receiver by which the capacity of a program memory can be reduced. CONSTITUTION: This digital television broadcast receiver is provided with a control section that controls the entire receiver, a program memory consisting of a nonvolatile memory to store the program data of the control section and character/graphic data used to draw the images of various operation menus, and a volatile memory for storing various data. The nonvolatile memory stores compressed character/graphic data used to draw the images of various operation menus, and the compressed data are decompressed at the initial start of the receiver and expanded over the volatile memory.
Patent KR-20020043741-A (KR)
Title: apparatus for locking sterilizer
Inventor: LEE YONG IK
IPC: A61L2/26
Filed: 2000-12-04
Abstract: PURPOSE: Provided is a locking device for a sterilizer which uses an oval inserted part to insert and lock a projected pole so that it can be opened just by using a grip part to raise and take out with maximizing locking effect. CONSTITUTION: In the locking device for the sterilizer which is formed to seal a chamber(20) with a door part included, the locking device for the sterilizer comprises the parts of: the door part(26) which is inserted into a hinge fixed part(31) at the front side of the chamber and fixed by a hinge(30) to make front side opened toward one direction; a pair of support frame parts(28a)(28b) which are straightly placed in a line outside the door part; a pair of cam ring-typed locking pin parts(36a)(36b) which are rotated by pulling a grip part(32) with a connection pole and moved upwardly in rotating the grip part by 90deg.; and an oval inserted part which is placed in an opposite side of the locking pin part to fix the fixed pin part.
Patent KR-20020044918-A (KR)
Inventor: LEE IL RYEOL
IPC: H04Q11/08
Filed: 2000-12-07
Abstract: PURPOSE: An apparatus for initializing a control memory of a time switch is provided to prevent the initialization delay of the control memory and enhance a service efficiency by initializing the control memory using a local oscillator clock. CONSTITUTION: A power reset unit(140) outputs a power reset signal which is maintained as an abnormal state during a uniform time and is transited into a normal state when a power is supplied to a time switch(100). An oscillator(160) generates a local oscillator clock. A control memory unit(120) stores control data for outputting each time slot stored in a call memory unit(110) to a time slot position by the control of an upper call processing unit(200). An address process control unit(130) selects one clock among clocks provided from a network synchronous device of a switch system and the oscillator(160) to generate a successive read address, provides the generated successive read address together with a control memory read/write control signal for controlling the read/write of the control memory unit(120) to the control memory unit(120) to initialize the control memory(120), and provides a synchronous clock selection signal to the power reset unit(140) when the synchronous clock selection is completed. A pull-up resistor(150) converts a signal level of an output data bus during a write interval among the control memory write/read control signal provided to the control memory unit(120).
Patent KR-20010090702-A (KR)
Title: Semiconductor memory device having data parallel/serial conversion function and capable of efficiently performing operational test
Inventor: TSUKUDE MASAKI
IPC: G01R31/28
Filed: 2000-12-08
Abstract: PURPOSE: A semiconductor memory for efficiently performing an operation test and having a data parallel/serial conversion function is provided to efficiently perform an operation test and high frequency operation by using a data series-parallel conversion function. CONSTITUTION: The semiconductor memory(110) comprises a memory core section(20), a test mode control circuit(200) for transmitting the data outputted from the memory core section(20) to internal nodes(N0-Nn), and a data input/output control circuit(40) for inputting/outputting from and to each of data nodes(Nd0-Ndn) in series the plural parallel data to be inputted/outputted from and to each of internal nodes(N0-Nn). The test mode control circuit(200) transmits read-out data from the memory core section(20) to the internal nodes(N0-Nn) at the time of normal read-out operation. Also, data outputted form the memory core section(20) is compressed per predetermined data and transmitted to the internal nodes(N0-Nn) at the time of test mode.
Patent KR-20020045676-A (KR)
Title: A colorful light controlling method and a pattern selecting method and an error checking method and the neon trans controller with these punctions
Inventor: KIM SEONG WON
IPC: H05B41/26
Filed: 2000-12-09
Abstract: PURPOSE: A method for controlling colored light, a method for selecting pattern, a method for checking operation error, and a neon transform controller of the same are provided to enhance an advertising effect with several tones of color by controlling a neon transformer for emitting several colored lights from a neon tube. CONSTITUTION: A display control unit(110) controls a display rate and pattern data in an inner operation of a controller. A signal generation unit(120) generates several signals by using the pattern data. A current control unit(130) controls an output current. A voltage detector(140) senses the output current and examines an error of the controller. A power supply unit(150) converts an alternating current into a direct current, and supplies the controller with the converted current.
Patent KR-20010062320-A (KR)
Inventor: KAWAMOTO MITSUTOSHI
IPC: H01C1/14
Filed: 2000-12-11
Abstract: PURPOSE: To provide a laminated type semiconductor ceramic electronic component, which has a lamination type that is itself capable of miniaturization, a low room temperature resistance of at most 0.2 Ω, a resistance change width of at least 3 orders of magnitude and high breakdown voltage of at least 20 V. CONSTITUTION: A laminated type semiconductor ceramic electronic component 10 consists of barium titanate based semiconductor ceramic layers 14, inner electrode layers 16 and outer electrodes 18a and 18b. The semiconductor ceramic layers 14 and the inner electrode layers 16 are stacked alternately. When the thickness of the semiconductor ceramic layer 14 is set as S and the thickness of the inner electrode layer 16 is set as I, S/I is set to at least 10 and at most 50. The outer electrodes 18a and 18b are formed so as to be electrically connected with the inner electrode layers 16.
Patent KR-20020048721-A (KR)
Title: Apparatus for controlling burning when an engine is stopped in a motor vehicle using LPG as fuel
Inventor: YANG NAM GI
IPC: F02M21/00
Filed: 2000-12-18
Abstract: PURPOSE: An apparatus is provided to control the combustion of an engine to stop the engine after burning the fuel remaining at a fuel supplying tube when the engine of vehicle using LPG stops. CONSTITUTION: An apparatus is composed of an off-relay(12) for controlling the electric connection between an ignition power and off-terminal of a key set(24); a pressure sensor for detecting the pressure in the fuel supplying tube(2); a control unit(18) for cutting off the power of the off-relay(12) to block the electric connection between the ignition power and off-terminal when the pressure detected from the pressure sensor is less than the predetermined value; a first key set relay for intermitting the electrical connection between a battery and the key set according to the operation of the fuel cutting-off valve(22); and a second key set relay(15) operating in synchronization with the off-relay by a control signal of the off-relay from the control unit.
Patent KR-20020049578-A (KR)
Title: Wiper Arm for Blade Protection
Inventor: BAEK SEUNG GIL
IPC: B60S1/34
Filed: 2000-12-19
Abstract: PURPOSE: A wiper arm protecting a blade is provided to minimize deformation or damage of a blade contacted to a wind glass caused by polluted material or heat through a wiper arm. CONSTITUTION: A wiper arm for protecting a blade comprises a blade(2) contacted to a wind glass; a spring(3) mounted between an arm head(1) and the blade; a retainer(4) having the spring; a wiper arm is connected trough a hinge shaft(5); and a fixing pin inserted to a hole to support the retainer. The fixing pin supports the retainer while rotating the retainer around on the hinge shaft of the arm head. The retainer is rotated by inserting the fixing pin into the hole of the arm head while contacting the blade to the wind glass. The blade is contacted to the wind glass by removing the fixing pin from the hole. The hole is arranged on the retainer and the arm head. Thereby, the wiper arm for protecting the blade prevents damage of deformation of the blade caused by polluted material. Moreover, the wiper arm for protecting the blade prevents the blade from attaching to the wind glass.
Patent KR-20020050917-A (KR)
Title: Method for Fabricating of Semiconductor Device
Inventor: CHOI YUN JE
IPC: H01L21/76
Filed: 2000-12-22
Abstract: PURPOSE: A fabrication method of semiconductor devices is provided to improve an etch profile of a DTI(Deep Trench Isolation) by removing tip points generated at bottom corners of a trench. CONSTITUTION: A deep trench is formed in a desired portion of a semiconductor substrate(21) by performing a first etch processing at atmosphere of low polymer formation gases. By performing a second etch processing at atmosphere of high polymer formation gases so as to remove tip portions generated at bottom corners of the deep trench, a trench(22) having an improved etch profile is formed. Mixed gases of HBr and CF4 are used as the polymer formation gas.
Patent KR-20020051610-A (KR)
Title: plate sample grip of high temperature tensile tester
Inventor: SUNG HWAN JIN
IPC: G01N3/04
Filed: 2000-12-23
Abstract: PURPOSE: A grip for fixing plate-type test piece is provided to allow the test piece to be easily assembled in a short time, while permitting tension test for the plate-type test piece to be carried out in an easy and rapid manner. CONSTITUTION: A tension testing system comprises upper and lower jigs(1,2) having male screw portions(1a,2a), respectively; outer grips(3,4) having female screw portions to be engaged with the male screw portion of jigs; and inner grips(13,14) having female screw portions(13a,14a). The tension testing system tests tension for a plate-type test piece(5) within a heating furnace(8) for providing a high temperature atmosphere. The plate-type test piece has male screw portions(5a,5b) formed at both ends of the test piece so as to be coupled with the female screw portions of the inner grips. The outer grips have cut-away portions formed at the outer surfaces of the outer grips, so as to allow the inner grips assembled with both ends of the plate-type test piece to be inserted in a sliding manner and firmly fixed.
Patent KR-20020053568-A (KR)
Title: Hybrid Fiber Amplifier Employing Pump Power Control Loop
Inventor: BANG JUN HAK
IPC: G02B6/00
Filed: 2000-12-27
Abstract: PURPOSE: A pump light source controller of an optical fiber amplifier and a hybrid type optical fiber amplifier using the same are provided to gain a sufficient operation band width about an input power change while maintaining a constant optical amplification feature with respect to a change of an input signal light intensity. CONSTITUTION: A pump power control loop(210) controls a pump power of a Raman amplification module for a lossless division compensation. A tap coupler(211) divides a part of an input signal. An optical detector(212) measures a signal divided by the tap coupler(211). An amplifier(213) amplifies a signal detected by the optical detector(212). An A/D converter(214) converts an analog signal amplified by the amplifier(213) into a digital signal. A processor(215) controls the digital signal from the A/D converter(214). A D/A converter(216) converts the digital signal controlled by the processor(215) into an analog signal. An adder(217) adds the analog signal from the D/A converter(216) to an off-set voltage.
Patent KR-20020053579-A (KR)
Title: Method for producting liquid crystal display
Inventor: JUNG YEON HAK
IPC: G02F1/136
Filed: 2000-12-27
Abstract: PURPOSE: A method of fabricating a liquid crystal display is provided to pattern a simple device or a small-size TFT-LCD on the remaining part of a glass plate that is left after a large-sized liquid crystal display panel is formed on the glass plate. CONSTITUTION: A desired TFT-LCD panel array(B) is formed on a glass plate(A). The TFT-LCD panel array is concentrated at one side of the glass plate. A small-sized TFT array is formed on the remaining part(C) of the glass substrate. A large-sized TFT array is arranged on the outer part of the glass plate, and a small-sized TFT array is formed on the central remaining part of the glass plate. The small-sized TFT array is a passive matrix array.
Patent KR-20020054758-A (KR)
Title: Pasteurization filter assembly unit
Inventor: PARK HYEONG JUNG
IPC: B01D39/00
Filed: 2000-12-28
Abstract: PURPOSE: A sterilizing filter assembly is provided, in which pleated sterilizing mesh is additionally installed to existing ordinary filter instead of separator, so that the filter assembly eliminates any necessity of additionally installing air cleaner. The filter assembly can be installed not only at a central air conditioning system but also at air conditioner as multi-purpose product. CONSTITUTION: The filter assembly comprises a case(32), filter media(34), epoxy adhesive(38), parts for supporter and pleated sterilizing mesh(36). The pleated sterilizing mesh(36) having at least 0.7 t of thickness are set at the front and the rear of filter media(34) to sterilize air and at the filter media that is set inside the case particulate matter is absorbed.