baber/WOPTO huggingface dataset:
Patent KR-20020010732-A (KR)
Title: Frequency measurement
Inventor: KIM JIN DAE
IPC: H01Q1/00
Filed: 2002-01-14
Abstract: PURPOSE: A characteristic test apparatus for portable phone antenna is provided to achieve an improved productivity and reduce reject ratio by automatically measuring the frequency band of the antenna. CONSTITUTION: An apparatus comprises a rotating unit(c) which rotates by 90 degrees so as to change the proceeding direction of the antenna; an antenna lift unit(d) for lifting the antenna to a fixing unit(e); the fixing unit for fixing the antenna; a fixing unit lift unit(f) for lifting the fixing unit; a single axis robot(g) for moving the fixing unit to a frequency band measuring unit(h); a determination unit(i) for determining whether to pass or reject the antenna; a measuring instrument(j) for measuring frequency band of the antenna; and a control unit(k) for communication with the measuring instrument.
Patent KR-20020062573-A (KR)
Inventor: GREINER HORST
IPC: G02F1/13357
Filed: 2002-01-17
Abstract: PURPOSE: A lighting device with linear light sources is provided to illuminate image uniformly and strongly. CONSTITUTION: A lighting device is described with an optical waveguide plate(1) which comprises a light emission surface(11) and a plurality of channels(20) each with at least one substantially linear light source(21). The lighting device is suitable in particular for use as a backlight in a liquid crystal display, such as an LCD picture screen, or for use as a planar light source. The lighting device is distinguished in particular in that the channels are provided with a reflecting first layer(204) at the upper sides(203) facing the light emission surface, and in that the coupling of light into the optical waveguide plate takes place through side walls(201, 202) of the channels.
Patent KR-20020024086-A (KR)
Inventor: SHIN IK CHUL
IPC: B01D39/00
Filed: 2002-01-24
Abstract: PURPOSE: A manufacturing equipment of air filter for air conditioner is provided, which can coat hot melt, an adhesive agent, on scroll member automatically by just putting filter member that is folded in zig zag form on jig of horizontal member. CONSTITUTION: The equipment comprises a jig(150), a pair of adhesive unit(180), a fore edge guide(190). The jig(150) is made of two side-toothed plates and one inter-toothed plate which are matched by pins. The adhesive unit(180) is made of pulling roller(182), nozzle(184) to spread adhesive agent and cutter(185) to cut rolled member on which adhesive agent is spread. The fore edge guide guides scroll(RP) and press No.1 fore edge guide member(162) on both ends of filter member(160) on the jig(150) to adhere.
Patent KR-20030065933-A (KR)
Title: Terminal having protrusion for preventing separation
Inventor: KIM BYEONG YONG
IPC: H01R9/24
Filed: 2002-02-02
Abstract: PURPOSE: A terminal having a protrusion for preventing the terminal from coming out of a mold is provided to prevent the terminal from being separated from the mold when the terminal is inserted into the mold. CONSTITUTION: A terminal(100) includes a protrusion(101) having a saw tooth shape. The protrusion is formed on the outer side of a specific point of the terminal, which is combined with a square hole of a mold(110). When the terminal having the protrusion is forcibly inserted into the square hole of the mold, the terminal is fixed to the mold according to the protrusion. In this state, the terminal is bend at 90 degrees in order to insert the terminal into a PCB.
Patent KR-20030066911-A (KR)
Title: Method for Digital Data Communication Using Inversion Code
Inventor: NOH SANG SEOP
IPC: H03M13/11
Filed: 2002-02-06
Abstract: PURPOSE: A method for digital data communication using an inverse code is provided to reduce a waveform distortion phenomenon and control a duty ratio of 0 and 1 by inserting the inverse code into each bit of data. CONSTITUTION: A transmitting data input process is performed(S10). Each bit the input data is compared to 0(S11). The corresponding bit is converted to 01 by inserting 1 as a reciprocal number of the corresponding bit if the comparing bit is 0(S13). The corresponding bit is converted to 10 by inserting 0 as the reciprocal number of the corresponding bit if the comparing bit is 1(S12). The last bit of the transmitting data is checked(S14). A start code is inserted to indicate the information of the converted data(S15). The converted data is transmitted(S16).
Patent KR-20030068813-A (KR)
Title: Apparatus and method for digital symbol synchronization
Inventor: BAEK SEUNG GWON
IPC: H04L7/033
Filed: 2002-02-18
Abstract: PURPOSE: An apparatus and a method for synchronizing a digital symbol are provided to obtain the resolution of a narrower interval than an interval of sampling frequencies by using only one A/D converter. CONSTITUTION: An apparatus for synchronizing a digital symbol includes an A/D conversion portion(100), a symbol timing calculation portion(200), a timing decision portion(300), and an A/D clock supply portion(400). The A/D conversion portion performs an oversampling process for a received analog signal to a digital signal according to a clock. The symbol timing calculation portion calculates a symbol timing value from the oversampled signal in a sample interval. The timing decision portion decides the symbol timing from the symbol timing value. The A/D clock supply portion supplies an A/D clock to the A/D conversion portion according to the symbol timing information.
Patent KR-20030070174-A (KR)
Title: Connector for connecting concrete structures to be laid under the ground
Inventor: HAN JAE MYUNG
IPC: E02D29/16
Filed: 2002-02-21
Abstract: PURPOSE: A connecting apparatus for an underground concrete structure, using industrial by-products is provided to increase watertight ability of a connected part by improving the joining ability between structures and to facilitate the joining work. CONSTITUTION: A connecting apparatus(1) for an underground concrete structure, using industrial by-products includes the concrete structure laid to be under the ground and a connecting apparatus body(10) to be joined to each end face to be connected each other, to connect the concrete structure with another concrete structure. The joined end face among end faces of each connecting apparatus body is uneven to each combine the connecting apparatus body joined to the concrete with the connecting apparatus body joined to another concrete structure. The connecting apparatus body includes at least one reinforcing member(20) protruded on the end face joined to the concrete structure, to make the connecting apparatus body located inside the concrete structure, in joining the concrete structures.
Patent KR-20030069552-A (KR)
Title: Method for manufacturing Nitride semiconductor substrate
Inventor: KIM MIN HONG
IPC: H01S5/323
Filed: 2002-02-21
Abstract: PURPOSE: A method for fabricating a nitride semiconductor substrate is provided to reduce the generation of stress and defect from a boundary between a nitride layer and a mask material by performing repeatedly a pausing operation of a lateral epitaxial overgrowth, a removing operation of the mask material, and a resuming operation of the lateral epitaxial overgrowth. CONSTITUTION: The first nitride semiconductor layer is grown on a hetero substrate. The first mask pattern is deposited on the first nitride semiconductor layer. The second nitride semiconductor is grown on a lateral part of the resultant. A dry etch process for the first mask pattern is performed. The second nitride semiconductor layer(53) is formed by growing the second nitride semiconductor. The second mask pattern is deposited on the second nitride semiconductor layer. The third nitride semiconductor is grown on a lateral part of the resultant. The dry etch process for the second mask pattern is performed. The third nitride semiconductor layer(63) is formed by growing the third nitride semiconductor.
Patent KR-20030070717-A (KR)
Title: A method and apparatus for upgrading a peripheral device firmware by using a recording medium replay apparatus
Inventor: KIM DO YEON
IPC: G11B19/02
Filed: 2002-02-26
Abstract: PURPOSE: A method and apparatus for upgrading firmware of a peripheral device using a recording medium player are provided to efficiently upgrade the firmware to add new functions to the firmware. CONSTITUTION: A recording medium player capable of upgrading firmware of a peripheral device includes a loader(101), a buffer memory(109), and a controller(103). The loader reads an upgrade program installed in the recording medium player. The buffer memory temporarily stores the read upgrade program. The controller transmits the upgrade program temporarily stored in the buffer memory to a microcomputer(105) of the peripheral device according to a predetermined protocol. The microcomputer of the peripheral device stores the upgrade program in an inner EEPROM(107) of the peripheral device.
Patent KR-20030078215-A (KR)
Inventor: PARK CHUN SEONG
IPC: G11B7/1395
Filed: 2002-03-28
Abstract: PURPOSE: An optical pickup is provided to erase astigmatism due to the structure of a semiconductor layer by installing an astigmatism correcting element, thereby detecting a reproduction signal having an excellent jitter characteristic. CONSTITUTION: A first semiconductor laser(11) and a second semiconductor laser(12) emit first beams(11a) and second beams(12a) having a wavelength respectively appropriate for a first optical disk(10a) and a second optical disk(10b) different in thickness. An objective lens(18) focuses the beams to be formed at an optical spot on recording surfaces of the optical disks. A photo detector(20) receives and detects the beams reflected from the recording surfaces of the optical disks. An astigmatism correcting element(15) erases astigmatism due to at least one of the first and second semiconductor lasers.
Patent KR-20020077277-A (KR)
Inventor: ARITA YUKINORI
IPC: H01P1/36
Filed: 2002-03-30
Abstract: PURPOSE: A two-port isolator and a method for evaluating the same are provided to achieve a two-port isolator having large isolation and small insertion loss in a wide bandwidth. CONSTITUTION: A two-port isolator comprises a thin ferrite plate, a permanent magnet for applying a static magnetic field to the thin ferrite plate, first and second central conductors disposed substantially in a center portion of the thin ferrite plate and crossing each other with electric insulation, first and second input-output terminals each connected to an end of each of the first and second central conductors, a common terminal connected to the other ends of the first and second central conductors, the first matching capacitor connected between the first input-output terminal and the common terminal, the second matching capacitor connected between the second input-output terminal and the common terminal, and a resistor connected between the first input-output terminal and the second input-output terminal, wherein the DC resistance of the resistor is set, such that with loss in a high-frequency signal entering into the first input-output terminal and exiting from the second input-output terminal defined as insertion loss, and with loss in a high-frequency signal entering into the second input-output terminal and exiting from the first input-output terminal defined as isolation loss, the insertion loss is smaller than the isolation loss, and that the isolation loss increases as a static magnetic field applied to the two-port isolator from outside increases.
Patent KR-20030079236-A (KR)
Title: Made of anti-hangover beverage using silk fibroin
Inventor: CHOI JIN HO
IPC: A23L2/38
Filed: 2002-04-02
Abstract: PURPOSE: Provided is a method for manufacturing anti-hangover drinks using silk fibroin as a main ingredient. Therefor, hangover caused by over drinking is effectively prevented. CONSTITUTION: A method for manufacturing anti-hangover drinks comprises the steps of: adding a mixed extract of Capsosiphon fulvecens and Hemerocallis fulva L. to silk fibroin having a molecular weight of 500 and mixing them; adding 0.01-5.0 parts by weight of taurine, vitamin C, aspargine and citric acid, respectively to 0.01-10.0 parts by weight of the mixture and mixing them; centrifuging the mixture at low temperature for 10 minutes; and packing the supernatant into a 100ml vessel.
Patent KR-20020079487-A (KR)
Title: Fluid friction clutch
Inventor: CHRISTIAN M TILLY
IPC: F16D35/02
Filed: 2002-04-04
Abstract: PURPOSE: A fluid friction clutch is provided to avoid contact caused by friction causing wear by improving the fluid friction clutch. CONSTITUTION: A fluid friction clutch includes a drive shaft(12), a first clutch element mounted fixed against rotation on the front end of the drive side of the drive shaft, a second clutch element mounted rotatably upon the driven side of the drive shaft, a valve element, which controls the supply of a viscous fluid for the fluid frictional coupling of the first and the second clutch elements, and a solenoid control part for the valve element comprising a piston rod provided coaxially within the hollow drive shaft. The front end of the piston rod projects from the drive shaft and axially operates the valve element against the force of a return spring. An anchor(28) is provided on the rear end of the piston rod, and an armature coil(34) coaxially surrounds the anchor. The anchor is guided coaxially within the drive shaft. The drive shaft, at least in the part guiding the anchor, is comprised of a soft magnetic material with a non-magnetic separation gap(38). The armature coil is seated in a magnet body(32) of soft magnetic material coaxially surrounding the drive shaft and that the drive shaft is rotatable within the magnet body.
Patent KR-20030081557-A (KR)
Title: System and the method providing composite wedding pictures using internet
Inventor: HONG SUNG BUM
IPC: G06Q30/06
Filed: 2002-04-11
Abstract: PURPOSE: A synthesized wedding photo service system and method is provided to synthesize person photos, captured by a web camera and transmitted by a PC, with traditional wedding scenes of various countries, stored at a server, and to offer the synthesized photos to a user. CONSTITUTION: The system comprises a member management module(120), a traditional wedding photo synthesizer(130), a sightseeing resort photo synthesizer(140), a child image matching module(150), and an image management module(160). The traditional wedding photo synthesizer(130) synthesizes the person photos, transmitted by a user PC, with images of the traditional wedding scenes stored at a server. The sightseeing resort photo synthesizer(140) synthesizes the person photos, transmitted by a user PC, with images of the sightseeing resort scenes stored at a server. The child image matching module(150) analyzes the person photos, and synthesizes the images of children of the user by extracting feature data of faces of a man and a woman. The image management module(160) transmits the synthesized images to the user PC and an affiliated store.
Patent KR-20030081762-A (KR)
Title: A quinoline carboxylic acid derivative with fluoropyrrolidine substituents and a process for the preparation thereof
Inventor: JUNG YONG HO
IPC: C07D401/04
Filed: 2002-04-12
Abstract: PURPOSE: A quinoline carboxylic acid derivative with fluoropyrrolidine substituents and a preparation process thereof are provided. The compound has no toxicity and improved antimicrobial activity to both gram positive and negative bacteria. CONSTITUTION: A quinoline carboxylic acid derivative represented by the formula 1 in which 4-aminomethyl-4-fluoro-3-(Z)-alkoxyiminopyrrolidine is substituted at the 7-site of the quinolone scaffold, pharmaceutically acceptable acid adding salt and solvates thereof are provided. In the formula, Q is C-H, C-F, C-Cl, C-OCH3, C-OCHF2, C-CH3 or N; R is hydrogen, methyl or NH2; R1 is ethyl, cyclopropyl, t-butyl, or at least one fluoro substituted phenyl; R2 is hydrogen, C1-C5 alkyl, cyclopropyl, cyclopropyl methyl, C3-C6 alkenyl, C3-C6 alkynyl, phenyl or benzyl; and R3 or R4 is independently hydrogen, or C1-C3 alkyl, or R3 or R4 is hydrogen or C1-C3 alkyl bound nitrogen containing C3-C5 hetero ring compound. A process for preparing the quinoline carboxylic acid derivative represented by the formula 1 comprises the steps of: (1) reacting a quinolone scaffold compound of the formula 2 with a fluoro containing compound of the formula 3 in the presence of a solvent and a base to prepare a compound of the formula 4; and (2) deprotecting the compound of formula 4 with HX, wherein R3 or R4 is hydrogen; P is hydrogen or amine-protecting group; and X is F or Cl.
Patent KR-20030082011-A (KR)
Title: Burst-mode optical receiver of differential output structure
Inventor: DO HUI CHAN
IPC: H04B10/516
Filed: 2002-04-15
Abstract: PURPOSE: A burst mode optical receiver with a differential output structure is provided to reduce the dimension of a circuit because an ATC(Adaptive Threshold Controller) circuit is unnecessary by generating a signal reference voltage in its internal portion and generating differential output signals through an internal differential buffer. CONSTITUTION: A TIA(TransImpedance Amplifier)(110) converts a current indicating a burst mode signal into a voltage signal. A bottom level detector(120) detects a bottom level of an output signal from the TIA(110). An AGC(Automatic Gain Controller)(140) receives the detected bottom level signal, and automatically adjusts a gain so that distortion is not generated in an output waveform from the TIA(110). A top level detector(130) detects a top level of the output signal from the TIA(110). A pair of resistors(R1,R2) connect to the bottom level detector(120) and the top level detector(130) at their one sides, mutually connect at the other sides, and generate a signal reference voltage from a top level voltage and a bottom level voltage. A differential buffer(150) receives the output from the TIA(110) and the signal reference voltage from the resistors(R1,R2), removes an offset generated in the bottom level detector(120) and the top level detector(130), and provides two differential outputs.
Patent KR-20030085437-A (KR)
Title: Voltage controlled variable optical attenuator and manufacturing process
Inventor: LEE CHUNG GUK
IPC: G02B26/02
Filed: 2002-04-30
Abstract: PURPOSE: A voltage control type variable optical attenuator and a fabricating method thereof are provided to change a ratio of attenuation by using the mismatch of an optical axis between two optical fibers. CONSTITUTION: A voltage control type variable optical attenuator includes the first groove(107), the first cover(113), the second groove(108), the second groove(114), a piezoelectric actuator(102), a frame(101), and a fastening screw(115), and a voltage control driving circuit. The first groove(107) and the first cover(113) include the first optical fiber(109). The second groove(108) and the second groove(114) include the second optical fiber(110). An optical axis is aligned by inserting and fixing the first and the second fibers(109,110) into the first and the second grooves(107,108).
Patent KR-20030085759-A (KR)
Title: Mold clamping unit
Inventor: SONG YU SEOP
IPC: B29C33/20
Filed: 2002-05-01
Abstract: PURPOSE: A device for clamping a mold is provided to simplify the structure of the device by reducing the number of parts, and to improve productivity by improving the structure of a piston. CONSTITUTION: A device for clamping a mold is composed of a body(100), a clamp member(200) rotatably installed at the body and clamping the mold, an oil cylinder(300) installed at one end of the clamp member and having small and large oil chambers(320,330), a piston(310) inserted into the inside of the oil cylinder and having an inclined surface, a rod(311) contacted with the inclined surface and the bottom of the clamp member, and a restoring unit. The rod rotates the clamp member when oil is supplied to the oil chambers so the clamp member clamps the mold. The restoring unit releases the locking of the mold when the oil in the large chamber is discharged.
Patent KR-20030085912-A (KR)
Title: Method for fabricating plasma diagnostic wafer
Inventor: KANG DAE HWAN
IPC: H01J49/48
Filed: 2002-05-02
Abstract: PURPOSE: A method is provided to optimize the plasma state and achieve improved productivity by minimizing defects at the edge of the wafer and directly controlling the conditions of gas, pressure and power. CONSTITUTION: A method is characterized in that an ion energy analyzer(100) and an ion current analyzer(200) are arranged on a silicon or glass wafer(21) for manufacturing a semiconductor through a semiconductor process. The ion energy analyzer operates by the steps of permitting a native silicon oxide film(22) to be grown on the wafer, depositing a silicon nitride film, and forming a metal thin film(24) for ion collector; forming a silicon oxide film covering the metal thin film for ion collector, and forming a metal grid thin film(28) for ion separation on the silicon oxide film; forming a silicon oxide film covering the metal grid thin film, and forming a top metal grid thin film(30) on the silicon oxide film; forming a protective silicon nitride film(31) covering the structure excluding the hole of the top metal grid thin film; and selectively removing only the silicon oxide film through a wet etching process.
Patent KR-20030002305-A (KR)
Inventor: KONDOH HARUFUSA
IPC: H03K17/16
Filed: 2002-05-28
Abstract: PURPOSE: To provide a semiconductor integrated circuit that suppresses disturbance of a waveform of an output signal when a logic level of the output signal is changed in response to a received signal. CONSTITUTION: A drive circuit 12 generates control signals A1, A2 that change from L to H according to a change from H to L of an input signal X and change from H to L according to a change from L to H of the input signal X and control signals B1, B2 that change from H to L according to a change from H to L of the input signal X and change from L to H according to a change from L to H of the input signal X and gives the control signals to gate terminals of MOS transistors(TRs) MA1, MA2, MB1 and MB2 respectively. A change timing of logic levels of the 4 control signals A1-B2 is adjusted so that a simultaneous ON or OFF period of the 4 MOS TRs MA1-MB2 can be produced.
Patent KR-20030093690-A (KR)
Title: Electric disk break system using cam
Inventor: JUN JAE HAN
IPC: F16D65/18
Filed: 2002-06-05
Abstract: PURPOSE: An electric disk brake system using a cam is provided to simplify the structure and execute braking quickly and exactly by bringing a brake pad into contact with a disk by movements of plural gear units and a cam unit and obtaining braking force. CONSTITUTION: An electric disk brake system using a cam comprises a disk(700) rotating together with a wheel; a caliper housing(100) constituting a body; an outer pad unit(200) fixed on a side of the caliper housing; a motor unit(300) rotating in a forward or reverse direction for braking and release of braking; a driving gear unit(400) fixed to a rotating shaft(350) of the motor unit; a driven gear unit(500) installed inside the caliper housing to rotate through engagement with the driving gear unit; a cam unit(600) combined to the coaxial driven gear unit; an inner pad unit(800) coming in contact with a side of the cam unit; an elastic member(840) supplying pressurization release force; and a control unit(900) controlling the forward and reverse rotation of the motor unit. The inner pad unit is movably combined to the cam unit according to the rotation of the cam unit, to pressurize the disk and release the pressurization.