baber/WOPTO huggingface dataset:
Patent KR-20020062267-A (KR)
Inventor: CHOI JAE GIL
IPC: B82B3/00
Filed: 2002-07-09
Abstract: PURPOSE: An apparatus for evaporating a hygroscopic solid precursor is provided to enable a user to appropriately adjust the speed of evaporating of the precursor by confirming the speed of evaporation in real time. CONSTITUTION: The apparatus for evaporating a hygroscopic solid precursor comprises a rectangular parallelepiped working room(1), two rubber gloves(2) formed in the working room, a sample loading chamber(16) defined in the working room, a sample container(7), an evaporating pipe(22) connected to the sample loading chamber through a sample transfer pipe(17), a waiting chamber(2) spaced from the evaporating pipe, a load cell(13) for measuring a weight of the sample container, a wrinkled pipe(9) for moving materials into the evaporating pipe, a wrinkled pipe movement guide(11) for guiding the upward and downward reciprocation of the wrinkled pipe, a gas injection hole(12), a sample weight informer(15) connected to the load cell, and a pressure gauge(5) for displaying an inner pressure of the working room.
Patent KR-20040005339-A (KR)
Title: Apparatus and method for adaptive channel estimation in mobile communication system
Inventor: CHOI JIN GYU
IPC: H04L25/02
Filed: 2002-07-09
Abstract: PURPOSE: A device for estimating an adaptive channel in a mobile communication system is provided to apply a channel estimator to a high-level modulating method and a high encoding rate, and to control filter coefficients of a noise removing filter according to wireless channel characteristics, thereby quickly transmitting packets and being applicable to various wireless channel environments. CONSTITUTION: A channel speed and noise measurer(518) inputs a predicted fading channel response, and measures noise and channel speed within the predicted fading channel response. A filter coefficient controller(520) compares the noise with at least the first reference value, compares the channel speed with at least the second reference value, and determines the first filter coefficient and the second filter coefficient by corresponding to compared results. If the channel speed is bigger than the second reference value, an inclination compensator(524) compensates an inclination of an output signal from a noise removing filter(522). If the channel speed is smaller or equal, the inclination compensator(524) does not compensate the inclination.
Patent KR-20040005530-A (KR)
Title: Mobile communication apparatus and method having base-station/mobile-station multiantenna
Inventor: KIM GI HO
IPC: H04B7/06
Filed: 2002-07-10
Abstract: PURPOSE: A mobile communication device including base station/mobile station multiple antennas is provided to reflect lower characteristics of spatial channels, and to transmit multiple stream data as forming antenna beams of a base station by considering lower characteristics of all mobile stations, thereby accomplishing maximum theoretical capacities. CONSTITUTION: A base station(10) restores weight information determined in mobile stations(20,22,...,24) from feedback signals, generates downlink control information, selects desired data of the mobile stations(20,22,...,24), and modulates/codes the selected data as controlling gains. The base station(10) spreads bands, operates a selected basis matrix by using the downlink control information, and transmits data signals, the first control signals, and pilot signals to the mobile stations(20,22,...,24). Each of the mobile stations(20,22,...,24) at least has one mobile station antenna. The base station(10) has at least two base station antennas. The number of the mobile station antennas is less than or more than the number of the base station antennas. The first characteristic corresponds to lower characteristics of base station/mobile station multiple antenna channels. The downlink control information consists of mobile station selection information, indexes of an optimal basis matrix, and indexes of an optimal gain value.
Patent KR-20040008687-A (KR)
Title: Method for forming self aligned contact hole in semiconductor
Inventor: JUN JAE YEONG
IPC: H01L21/28
Filed: 2002-07-19
Abstract: PURPOSE: A method for forming a self-aligned contact hole of a semiconductor device is provided to be capable of preventing contact failure. CONSTITUTION: Conductive lines(140) including a conductive layer(120) and a hard mask(130) are formed on a semiconductor substrate(100). A spacer(150) is formed at both sidewalls of the conductive line. An interlayer dielectric is formed to fill the space between the conductive lines. A mask pattern is formed to define a contact hole formation region. A buffer spacer(195) is formed at both sidewalls of the mask pattern. A self-aligned contact hole(200) is then formed by etching the interlayer dielectric using the buffer spacer and the mask pattern as a mask.
Patent KR-20040008819-A (KR)
Title: Receiver of communication system having offset voltage compensation circuit
Inventor: KIM SEONG RYEOL
IPC: H04B1/06
Filed: 2002-07-19
Abstract: PURPOSE: A receiver of a communication system including an offset voltage compensating circuit is provided to extract a DC value loaded into an input signal without using a capacitor, and to compare DC values of a differential input signal and a differential output signal, thereby compensating the DC values on a signal path. CONSTITUTION: A common mode bias circuit(12) is connected between an inverting terminal and a non-inverting input terminal, and applies common mode voltages(VCM) to the inverting and the non-inverting input terminals. An offset voltage compensator(13) comprises as follows. CMVE(Common Mode Voltage Extraction) circuits(14,15) extract the common mode voltages(VCM), respectively, from front nodes of the inverting/the non-inverting input terminals. An average circuit(16) averages the common mode voltages(VCM+,VCM-). A voltage-to-current converter(17) converts the averaged common mode voltages into current values, and applies the current values to back nodes of the input terminals.
Patent KR-20040011162-A (KR)
Title: Micom Interface of an image signal receiver
Inventor: LEE YUN YEONG
IPC: H04N5/44
Filed: 2002-07-29
Abstract: PURPOSE: A microcomputer interface of a device for receiving video signals is provided to increase the usage ratio of an A/D port by generating signals of various levels. CONSTITUTION: A key input interface unit(220) is connected with an A/D(Analog-to-Digital) port(113) to receive an external signal and convert it into a predetermined level by dividing voltage with power source and resistance. An X-ray interface(240) receives analog voltage data corresponding to X-rays emitted from a CRT(Cathode Ray Tube) to convert the analog voltage data into a value of a predetermined level by dividing voltage with power source and resistance. The key input interface and the X-ray interface are arranged in series and are connected with the A/D port, so the X-ray interface transmits the value of the predetermined level to the A/D port through the key input interface.
Patent KR-20020079634-A (KR)
Inventor: PARK JONG NAM
IPC: H04R7/06
Filed: 2002-08-05
Abstract: PURPOSE: Fabrication of a vibration plate coated with a low temperature polymer metal film is provided to improve physical characteristics of the vibration plate and enhance a sound effect by performing a fine coating process on the surface of a polyester film. CONSTITUTION: A vibration plate of a micro speaker is fabricated by utilizing a low temperature polymer metal film coating process using magnetron sputtering equipment. A polyester film is fabricated by magnetron sputtering roll coater equipment. A micro speaker vibration plate is formed by shaping the polyester film. A process for fabricating a micro speaker is performed. A particular portion or a whole surface of the vibration plate is coated by using a chamber type magnetron sputtering equipment after the micro speaker is fabricated. The productivity can be improved by increasing the capacity of a chamber.
Patent KR-20040014747-A (KR)
Inventor: NOH KYU SANG
IPC: B68G1/00
Filed: 2002-08-10
Abstract: PURPOSE: Provided is a health-aid inner part material for a pillow, a floor cushion, a cushion and the like, which has deodorizing, sterilizing, fragrant, far infrared ray emitting, metabolism stimulating and blood circulation activating properties. CONSTITUTION: The health-aid inner part material comprises an inner part material having a desired shape, and Chinese medicine materials contained in the inner part material. The health-aid inner part material is produced by the method comprising the steps of: boiling Chinese medicine materials such as a mugwort, a red-bean, a chrysanthemum, a charcoal, Angelicae Gigantis Radix, a salt, a rosin, jade powders, a loess, a tourmalin etc. to which an element selected from the group consisting of wood chips, synthetic resins and plutonium is added for 3-10 hours; removing the inner part material; and drying naturally for 24 hours or more. Further, the steps are repeated 3-9 times.
Patent KR-20040016603-A (KR)
Title: Double out-put matching circuit of power amplifier module
Inventor: JUNG JAE GYEONG
IPC: H03F3/189
Filed: 2002-08-19
Abstract: PURPOSE: A dual output matching circuit of an RF power amplifier is provided to maximize the performance at high power low power mode by changing a matching circuit according to a power mode. CONSTITUTION: A dual output matching circuit of an RF power amplifier includes a bias circuit(1), an input match(2), a drive amplifier(3), an interstage match(4), a power amplifier(5), and an output match(6). The bias circuit(1) changes a bias point by controlling the base current of each amplifier. The input match(2) filters an RF signal. The drive amplifier(3) is operated by the base current of the bias circuit to amplify the RF signal. The interstage match(4) filters the RF signal of the drive amplifier. The power amplifier(5) is operated by the base current of the bias circuit to amplify the RF signal. The output match(6) filters the RF signal of the power amplifier. The dual output matching circuit of the RF power amplifier further includes a diode and an auxiliary match circuit(100). The diode includes a cathode connected in parallel to an input terminal of the output match(6) and an anode connected to a mode switching signal terminal. The auxiliary match circuit(100) is connected to a rear end of the anode of the diode.
Patent KR-20040016683-A (KR)
Inventor: AHN GAP RYEOL
IPC: H01L21/66
Filed: 2002-08-19
Abstract: PURPOSE: An apparatus for attaching sandpaper to a dummy wafer is provided to prevent a probe card needle from being damaged when the sandpaper is attached to an imprecise position of the dummy wafer by including a right-and-left position adjusting jig and a vertical position adjusting jig such that the jigs determine the position of the sandpaper attached to the dummy wafer. CONSTITUTION: A stage(210) includes a loading surface on which the dummy wafer is placed. A press unit including the right-and-left position adjusting jig(272) places the sandpaper to be attached to the dummy wafer in a position separated from the loading surface, defining the right-and-left position of the dummy wafer to which the sandpaper is to be attached. A press unit including the vertical position adjusting jig(274) attaches the sandpaper to a side of the dummy wafer in the first place, defining the vertical position of the dummy wafer to which the sandpaper is to be attached.
Patent KR-20030017369-A (KR)
Inventor: AIGA MASAYUKI
IPC: H01J25/50
Filed: 2002-08-21
Abstract: PURPOSE: A magnetron is provided to improve the oscillation efficiency of the magnetron and the motion efficiency of electrons. CONSTITUTION: A magnetron comprises an anode portion(60) having a cylindrical anode(6) and a plurality of vanes(7) secured to the inner wall of the anode and disposed radially, a cathode portion(50) having a coil-shaped filament disposed substantially coaxial with the anode portion, a pair of magnetic poles(9,10) disposed at the upper and lower ends of the filament in the axial direction of the cylinder of the anode portion, ring-shaped permanent magnets(13,14) disposed substantially coaxial with the anode portion and magnetically coupled to the pair of magnetic poles, respectively, thereby forming a magnetic circuit, and an input portion(70) and an output portion(80) disposed on the outsides of the pair of magnetic poles, respectively, in the axial direction of the cylinder, wherein the diameter of the inscribed circle at the cathode-side ends of the vanes constituting the anode portion is in the range of 7.5 to 8.5 mm.
Patent KR-20040018737-A (KR)
Title: Method of automatic bell conversion in mobile phone
Inventor: YOO IL
IPC: H04B1/40
Filed: 2002-08-27
Abstract: PURPOSE: A method for automatically converting a bell sound in a mobile communication terminal is provided to prevent that a user does not recognize a call termination signal by peripheral environment by automatically converting the bell sound of the mobile communication terminal into a vibration. CONSTITUTION: If a call termination signal occurs, a mobile communication terminal judges whether a current state is a bell sound automatic conversion mode state(S1). If the current state is the bell sound automatic conversion mode state, the mobile communication terminal outputs a set bell sound during a uniform time(S2). If a user does not input a key during the uniform time in which the set bell sound is outputted, the mobile communication terminal automatically amplifies a successively outputted bell sound and outputs the amplified bell sound(S3). If the user does not inputs the key during a uniform time in which a bell sound with the maximum output is outputted, the mobile communication terminal automatically converts the bell sound mode into a vibration mode(S4).
Patent KR-20040019741-A (KR)
Title: Air insulating nozzle equipment for the annealing furnace of continuous galvanizing line and using thereby air insualting method
Inventor: NAM SEONG HYEON
IPC: C21D9/673
Filed: 2002-08-29
Abstract: PURPOSE: A nozzle device for blocking external air of annealing furnace in continuous galvanizing line is provided to prevent explosion of the furnace by preventing infiltration of the external air into the annealing furnace and flowing out of atmospheric gas from the furnace and removing non-burnt gas in the furnace, and an external air blocking method using the same is provided. CONSTITUTION: In a nozzle device for blocking external air of annealing furnace in a continuous galvanizing line in which a strip that is a plating object sequentially passes through radiation preheating zone(1), direct fired heating zone(2), indirect heating zone, gas jet cooling zone, snout and hot dip galvanizing pot, the nozzle device comprises nozzles(9) arranged at a front inner side of the radiation preheating zone with the strip(7) being positioned between the nozzles in such a way that air having high temperature and high pressure is injected onto the strip; a heat exchanger(10) which is piped in such a way that exhaust gas discharged through the radiation preheating zone is stayed in the heat exchanger temporarily, and through which the external air is supplied to the nozzles; and a blower(11) connected to the heat exchanger and installed in such a way that the blower coercively blows the external air.
Patent KR-20040022880-A (KR)
Inventor: CHO CHUN HYEON
IPC: G02F1/1333
Filed: 2002-09-10
Abstract: PURPOSE: A liquid crystal display module is provided to combine s printed circuit board with a mold frame without using a separate clip and ground the printed circuit board to a shield case. CONSTITUTION: A liquid crystal display module includes a back light assembly(200), a liquid crystal display panel(110), a frame(300), a printed circuit board(140), a chassis(500), and a shield case(400). The back light assembly has a lamp unit emitting light. The liquid crystal display panel receives the light and displays an image in response to a driving signal. The frame houses the back light assembly and the liquid crystal display panel. The printed circuit board generates the driving signal and applies the driving signal to the liquid crystal display panel. The chassis is combined with the frame to fix the liquid crystal display panel to the frame. The shield case fixes the printed circuit board to the frame and makes the printed circuit board, chassis and lamp unit electrically conductive.
Patent KR-20040022946-A (KR)
Title: Damascene method for reducing resistance of metal line
Inventor: KIM JAE YEONG
IPC: H01L21/28
Filed: 2002-09-10
Abstract: PURPOSE: A damascene method for reducing the resistance of a metal interconnection is provided to reduce metal resistance caused by a barrier metal by preventing the barrier metal from being formed on the sidewall of a metal interconnection layer. CONSTITUTION: The first photoresist layer mask for forming a lower contact hole of a damascene pattern is patterned on an oxide layer(200) formed on a semiconductor substrate. The oxide layer is etched to form the lower contact hole by using the patterned first photoresist layer as a mask. The barrier metal is deposited on the sidewall of the contact hole. The second photoresist layer mask for forming an upper trench structure is patterned on the semiconductor substrate having the contact hole. The oxide layer is etched to form an upper trench structure by using the patterned second photoresist layer as a mask. A sputtering process is performed to form polymer(212) on the sidewall and bottom of a trench and copper(214) is deposited.
Patent KR-20020077316-A (KR)
Inventor: KIM IN KU
IPC: H02K1/27
Filed: 2002-09-11
Abstract: PURPOSE: An apparatus and a method for increasing efficiency by a structural change of a motor are provided to reduce power loss of a motor and enhance efficiency of the motor by forming a stator and a rotator of a circular structure. CONSTITUTION: A cylindrical structure is changed to a circular structure in a rotator and a stator of components of a motor. The motor includes a permanent magnet having an N pole and an S pole. The motor is formed with a DC motor or an AC motor of the circular structure. The rotator is installed inside of the motor. A permanent magnet section is adhered to a steel core. A rotator can be installed outside the motor. A shaft for fixing the motor has a circular shape. A rotary shaft of the motor can be projected to one direction or both directions.
Patent KR-20020079669-A (KR)
Inventor: KIM DONG KUN
IPC: B65G21/20
Filed: 2002-09-13
Abstract: PURPOSE: A device for horizontally transferring a plate of a return part by chain-connected driving is provided to horizontally return a plate smoothly and to obtain stability by diagonally holding the plate with auxiliary chains. CONSTITUTION: Drive sprockets(6b,6b-1) and connecting sprockets(6c,6c-1) connected with power transmitting chains and connecting chains(8,8-1) are installed on the left and right sides of a support shaft(1-1) installed on one side of a frame body(1). A coaxially connecting sprocket(1-7) connected with a coaxial sprocket(1-6) of a drive motor(1-3) is installed on one side of the support shaft. Connecting sprockets(7,7-1) and return sprockets(6a,6a-1) are installed on left and right support shafts(1-1a) installed in front of the frame body. Inside the frame body, a support shaft(1-1b) interposed with brackets(1-2) is installed to install power transmitting sprockets and conveyor chain drive sprockets(6,6-1). A bush installed on the link of drive chains(5,5-1) is fitted to a shaft(3) installed in the center of a support bar(2a) of many plates(2) installed between the drive chains. Rods(4,4a) having length the same as that of the pitch of the drive chains are fitted to the outer end of the shaft in the opposite direction. A fixed shaft pin(4-1) installed on the link of auxiliary chains(5a,5a-1) is fitted to a hole(4-2) of the rod. Therefore, the plates are held diagonally.
Patent KR-20040025157-A (KR)
Title: Light source device of wavelength division multiplexing optical communication system
Inventor: HWANG SEONG TAEK
IPC: H04B10/03
Filed: 2002-09-18
Abstract: PURPOSE: A light generating apparatus is provided to reduce costs by efficiently expanding the number of light source channels in an optical communication system. CONSTITUTION: A light generating apparatus comprises a first pumping light generator(610) and a second pumping light generator(620) for generating a pumping light of a predetermined wavelength; a first wavelength router(100) having a first port and a second port, wherein the first wavelength router receives the pumping light from the first pumping light generator, performs a wavelength division inverse multiplexing to the pumping light, outputs the result to the inverse multiplexing ports of the second port, receives the pumping light from the second pumping light generator, performs a wavelength division inverse multiplexing to the pumped light, and outputs the result to the inverse multiplexing ports of the first port; a plurality of first optical fiber amplifiers(401,402,403) for generating natural light by the pumping light output from the inverse multiplexing ports of the second port of the first wavelength router, and second optical fiber amplifiers(404,405,406) for generating natural light by the pumping light output from the inverse multiplexing ports of the first port of the first wavelength router; a second wavelength router(200) having a first port and a second port, wherein the second wavelength router receives the optical signal from the first optical fiber amplifier, performs a wavelength division multiplexing to the optical signal, outputs the result to the multiplexing ports of the second port, receives the optical signal from the second optical fiber amplifier, performs a wavelength division multiplexing to the optical signal, and outputs the result to the multiplexing ports of the first port; and a first broad band pass filter(510) for passing the specific band and inputting the specific band to the multiplexing ports of the first port of the first wavelength router, and a second broad band pass filter(520) for passing the specific band and inputting the specific band to the multiplexing ports of the second port of the first wavelength router.
Patent KR-20030025857-A (KR)
Title: Tin or tin alloy plating bath, tin salt solution and acid or complexing agent solution for preparing or controlling and making up the plating bath, and electrical and electric components prepared by the use of the plating bath
Inventor: OBATA KEIGO
IPC: C25D7/00
Filed: 2002-09-19
Abstract: PURPOSE: To provide a tin or tin-alloy plating bath having greatly improved solderability, stannate and stannic acid or complexing-agent solutions for the preparation or maintenance/ supply of the plating bath, and electrical/electronic parts produced by using the plating bath. CONSTITUTION: The plating bath is a tin plating bath or a tin-alloy plating bath which consists of tin and one or more metals selected from the group (1) consisting of copper, zinc, silver, indium, gold, and bismuth. Further, this plating bath contains, as essential components, at least one or more kinds among the following components (A) to (D): (A) bivalent tin ions in an amount of 5-200 g/L; (B) one or more kinds among acids or complexing agents forming water-soluble salts or complexes together with the bivalent tin ions, in a total amount not smaller than the stoichiometrically equivalent weight based on the bivalent tin ions; (C) one or more metals selected from the group consisting of the group IB to VB elements in the fourth to sixth period of the periodic table, excluding tin, mercury, thallium and the elements contained in the above group (1), in a total amount of 20-2,000 ppm based on the amount of tin; and (D) one or more kinds among antioxidants in an amount of 1 mg/L to 10 g/L in total.