baber/WOPTO huggingface dataset:
Patent KR-20030064913-A (KR)
Title: A linear power amplification method for a pre-distortion type linear rf power amplifier using a characteristics of non-linearity of rf amplifier
Inventor: AHN CHANG YEOP
IPC: H03F1/32
Filed: 2002-01-29
Abstract: PURPOSE: A linear power amplification method of a pre-distortion type linear amplifier using nonlinearity of an amplifier is provided to minimize distortion component generated during an amplification process in the final amplification stage. CONSTITUTION: According to the linear power amplification method of a pre-distortion type RF linear amplifier where a pre-distortion stage(130) comprising an inter modulated distortion signal(IMD) generation part and a main signal offset part and an IMD control part is installed before a main amplification stage(140), the pre-distortion stage makes a signal like an IMD which is predicted to be generated in the main amplification stage. The above made signal is extracted by offsetting the original signal inputted to the pre-distortion stage without distortion. The extracted signal is maintained to be equal to the IMD component predicted to be generated in the main amplification stage. The signal which is maintained to be equal to the IMD component is inputted to the main amplification state together with a main signal and then is amplified. Then, the IMD component is minimized by offsetting the above IMD component using a signal generated by the inter-modulated distortion.
Patent KR-20030065111-A (KR)
Title: One time ceasing display method using door lock LED of washer
Inventor: HUH IL ROK
IPC: D06F33/02
Filed: 2002-01-31
Abstract: PURPOSE: A method of indicating a temporary stop, using a door lock LED(Light Emitting diode) in a washing machine is provided to indicate the opening of a door is impossible and the washing machine is in a temporary stop state by flickering the door lock LED, when driving of the washing machine is temporarily stopped. CONSTITUTION: A method of indicating a temporary stop, using a door lock LED(Lighting Emission diode) in a washing machine comprises steps of sensing the operation state of a temporary stop button while the washing machine is driving(S6,S7), and flickering the door lock LED according to the sensed result of the sensing step(S9). In the LED flickering step, the door lock LED is flickered if that the temporary stop button is operated is sensed.
Patent KR-20020067014-A (KR)
Inventor: BABA MASATAKE
IPC: F21S2/00
Filed: 2002-02-09
Abstract: PURPOSE: A fluorescent lamp, a fluorescent lamp unit, a liquid crystal display device and a method of an emitting light are provided to achieve reduced unevenness of light intensity. CONSTITUTION: A liquid crystal display device comprises a liquid crystal display panel(6) and a flat panel fluorescent lamp(20). The liquid crystal display panel(6) and the flat panel fluorescent lamp(20) are held by a front chassis(7), a center chassis(8), and a rear chassis(9). A circuit substrate(10) is attached at the back surface of the rear chassis(9). An inverter circuit which generates a voltage for driving the flat panel fluorescent lamp(20) is loaded on the circuit substrate(10). A power source cable for transmitting electrical power form the inverter circuit to the flat panel fluorescent lamp(20) is connected to the circuit substrate(10) and the fluorescent lamp(20).
Patent KR-20020067651-A (KR)
Inventor: LETOURNOUX ALAIN
IPC: B60N2/36
Filed: 2002-02-14
Abstract: PURPOSE: A vehicle seat with a back folded down is provided to reduce the manufacturing cost by using separable parts and to facilitate controlling by transferring a cam and a control member with one parts of the seat. CONSTITUTION: A vehicle seat comprises a back and a seat part. The back has at least a top portion mounted on a supporting strength member(11) to pivot about a transverse horizontal pivot axis(X2). The supporting strength member is connected to the seat proper. The top portion of the back is connected to the supporting strength member by a locking mechanism(13) adapted to connect the top portion of the back to the supporting strength member at least in a raised, normal-use position. The locking mechanism is actuated by a control member accessible to a user to release the top portion of the back to pivot about the pivot axis, at least in order to pivot forwards from the raised position to a folded-down position. The locking mechanism comprises a locking cam pivotally mounted on a first seat element selected from the supporting strength member and the top portion of the back. The locking cam is urged resiliently towards a locking position and is movable towards a retracted position by actuating the control member.
Patent KR-20030070691-A (KR)
Title: Separation equipment for a small kind of octopus and anchovys
Inventor: KIM YUN HO
IPC: B07B1/30
Filed: 2002-02-26
Abstract: PURPOSE: An apparatus for separating sea-arrow and dried anchovy is provided to separate sea-arrow and anchovy by kinds by vibration. CONSTITUTION: The apparatus comprises: a separating plate(1); a sloped frame(5) mounted below the separating plate for finely adjusting a slope of the separating plate; a vibration motor(M); and a supporting portion(10) transferring vibration of the vibration motor smoothly. The separating plate(1) includes a supply portion(2), a wall surface(3) and a guide plate(4) for lifting dried fish supplied to the supplying portion(2) up to a predetermined location.
Patent KR-20030074016-A (KR)
Title: Method and apparatus for multicast multimedia broadcast service data packet control in a cdma mobile communication system
Inventor: JANG JIN WON
IPC: H04J13/00
Filed: 2002-03-15
Abstract: PURPOSE: An apparatus and a method for controlling a data packet for an MBMS(Multimedia Broadcast/Multicast Service) in a CDMA(Code Division Multiple Access) mobile communication system are provided to process service information according to the MBMS in an MBMC(Multimedia Broadcast Multicast Control) layer for a plurality of cells within an MBMS service region. CONSTITUTION: An MBMC unit(1505) performs the entire control, for transmitting service information according to an MBMS, which is transmitted from a BM-SC(Broadcast/Multicast-Service Center)(1501), to RLC(Radio Link Control) units. A data storing unit(1508) stores service information according to the MBMS by the control of the MBMC unit(1505). A scheduler(1509) schedules service information according to the MBMS, which is transmitted from the data storing unit(1508), by the control of the MBMC unit(1505). A transmission buffer(1510) temporarily stores service information according to the MBMS, which is scheduled by the scheduler(1509), and transmits temporarily stored service information according to the MBMS to each RLC unit by the control of the MBMC unit(1505).
Patent KR-20030075107-A (KR)
Title: Apparatus for offset correction of digtal to analog converter
Inventor: LEE U YEOL
IPC: H03M1/66
Filed: 2002-03-16
Abstract: PURPOSE: An offset correction device of a digital/analog converter is provided to reduce the unit cost of a chip by changing only a digital coding circuit to average and minimize an offset. CONSTITUTION: An offset correction device of a digital/analog converter includes a plurality of digital/analog converters(21a-21f), a plurality of buffers(22a-22f), and a plurality of offset compensation portions(23-28). The digital/analog converters(21a-21f) are used for converting digital signals to analog signals. The buffers(22a-22f) are used for dropping the voltages of the analog signals of predetermined bits. The offset compensation portions(23-28) compare output voltages of the buffers(22a-22f) to the reference voltage and output the analog signals of the predetermined bits. The offset compensation portions(23-28) include a plurality of comparators(23a-28a), a plurality of 3 bits analog/digital converters(23b-28b), and a plurality of 3 bits digital/analog converters(23c-28c). The comparators(23a-28a) are used comparing the output voltages of the buffers(22a-22f) to the reference voltage. The 3 bits analog/digital converters(23b-28b) are used for outputting 3bits switching digital signals. The 3 bits digital/analog converters(23c-28c) are used for outputting 3bits switching analog signals.
Patent KR-20030075659-A (KR)
Title: Stage structure of bonding device
Inventor: LEE SANG SEOK
IPC: G02F1/13
Filed: 2002-03-20
Abstract: PURPOSE: A stage structure of a substrate joining device is provided to make effective lay-out design by reducing the size of the substrate joining device. CONSTITUTION: A stage structure of a substrate joining device includes an upper stage(121) movable mounted in a chamber, a plurality block of electrostatic chucks(121a) mounted on the upper stage for fixing substrates with electrostatic force, a plurality of vacuum holes(4a-4f) formed on the upper stage around the electrostatic chucks for adsorbing and fixing the substrates with vacuum force, and a plurality of align mark checking holes(3a-3n) formed in edge portions of the upper plate for checking align marks to align the adsorbed substrates. A lower stage is formed with holes for fixing the substrates by UV radiation or heating for sealant around the electrostatic chucks, holes for a lift bar which lifts substrates from the lower stage, and auxiliary holes.
Patent KR-20030075952-A (KR)
Title: Wood roll sending system
Inventor: SIN HYUN WOO
IPC: B24B7/28
Filed: 2002-03-22
Abstract: PURPOSE: A wood roll sanding system is provided to increase the productivity, to reduce working hours, and to improve the quality by sanding, cutting longitudinally and winding the wood roll successively and adjusting the forward direction of the wood roll automatically. CONSTITUTION: A wood roll(100) formed by combining nonwoven fabric and veneer sheets is supplied to a sanding machine(200), and the surface of the wood roll is evened by the sanding machine. The forward direction of the wood roll is adjusted automatically by moving a transfer roller(500) right and left around a fixing roller(510). The wood roll is cut longitudinally by a roll cutting machine, and wound on a winding machine(400). An auxiliary roller is formed in the lower part of the sanding machine, and a height adjusting unit is mounted to the auxiliary roller to adjust the height of the wood roll.
Patent KR-20020027457-A (KR)
Inventor: PARK YONG GYU
IPC: A47G19/00
Filed: 2002-03-22
Abstract: PURPOSE: A method for manufacturing a luminous container using electronic induction phenomenon is provided to keep the original shape of the container even after a luminary and other auxiliary devices are installed in the container, and to achieve various decorative effects of the container. CONSTITUTION: The luminous container(1) comprises: a first induction coil(5) as a power source fixed at the lower end of a table top plate(4); a second induction coil(3) for generating induction electricity from the variation of electro magnetic field produced within the first induction coil when alternating current voltage is applied to the first induction coil; and a luminary(2). The second induction coil and the luminary are completely molded in a body of the container. By virtue of the mutual induction phenomenon between the first induction coil and the second induction coil, a power supply device including an inverter(6) installed on the top plate of a table can offer electric power to the luminary without contacting with the luminary.
Patent KR-20030078116-A (KR)
Title: High performance cathode materials for a lithium ion secondary cell and process for the preparation thereof
Inventor: JUNG SUN GIL
IPC: H01M4/02
Filed: 2002-03-28
Abstract: PURPOSE: A high performance positive electrode material for a lithium ion secondary battery and its preparation method are provided, to improve the reversible specific capacity and the rechargeability. CONSTITUTION: The positive electrode material has the composition represented by Li1+xMn1+xMe1-xO4, wherein Me is a polyvalent metal having an oxidation number of 2 or more; and 0<x<0.6. Preferably Me is Cr, and 0.33<x<0.6. The method comprises the steps of firstly heating a lithium manganese oxide and a polyvalent metal oxide to obtain an amorphous composite oxide; and secondly heating the amorphous composite oxide to obtain a spinel structured composite oxide. Preferably the lithium manganese oxide is LiMnO4·3H2O, the polyvalent metal oxide is CrO3; and the first heating temperature is 170-300 deg.C and the second heating temperature is 900-1,100 deg.C.
Patent KR-20020043468-A (KR)
Inventor: JUNG HUI SEONG
IPC: H04W4/00
Filed: 2002-04-04
Abstract: PURPOSE: A method for providing foreign language learning contents in a PDA(Personal Digital Assistant) is provided so that a user can access a foreign language learning site at any time and anywhere using a PDA, access contents according to a desired learning field and a desired level, and directly confirm his capability and learning effect after solving presented questions. CONSTITUTION: A system displays an initial menu screen(1). As the system provides various kinds of foreign languages, a user selects a desired foreign language(2). Then the user selects a desired learning field(2,3). Succeedingly the user selects a desired level according to his/her capability and purpose(4). The user downloads provided software in an on-line or off-line method(5). If a question is provided(6), the user inputs his/her answer(7). A system response result is displayed according to the user's input(8).
Patent KR-20020079537-A (KR)
Title: Ceramic electronic component
Inventor: HAMADA KUNIHIKO
IPC: H01G4/12
Filed: 2002-04-09
Abstract: PURPOSE: A ceramic electronic component is provided to ensure stable electrical characteristics even if exposed to a high temperature environment for a long period of time and achieve satisfactory bonding strength between the ceramic body and terminal electrodes and between the terminal electrodes and lead terminals. CONSTITUTION: A ceramic electronic component(1) comprises a ceramic body(2), a terminal electrode(3) on the ceramic body, and a lead terminal(5) joined to the terminal electrodes with solder containing Sn. The terminal electrode comprises the first electrode layer on the ceramic body and the second electrode layer on the first electrode layer, wherein the second electrode layer comprises a conductive constituent comprising Zn, Sn, and at least one of Ag and Cu, and the Zn content in the conductive constituent is about 4% by weight or more and is within the solubility limit not forming of AgZn and CuZn intermetallic compounds.
Patent KR-20020033143-A (KR)
Inventor: KIM MYEONG YEOL
IPC: E21D11/38
Filed: 2002-04-10
Abstract: PURPOSE: A waterproofing method in a tunnel is provided to improve work efficiency and safety and to shorten the period of construction by simplifying works. CONSTITUTION: The waterproofing method in a tunnel comprises the steps of; manufacturing a waterproof sheet(30) by thermal-welding woven fabrics(10) and a waterproofing film(20); after digging a tunnel through an obstacle such as a mountain and shotcreting for a leveling work in the tunnel to secure straight road networks in a place such as a rugged mountain, preparing materials by measuring to cut out the waterproof sheet(30) to be fitted to the inside diameter of the tunnel; fixing the waterproof sheets(30) cut into the appointed size to a shotcrete plane(F) at regular intervals; welding a joint between the fixed waterproof sheets(30) by hot wind; testing inferiority of thermal-welded waterproof sheets(30); and placing lining concrete into the inside of the waterproofed tunnel.
Patent KR-20030081989-A (KR)
Title: Discharge method of quantitative flow for setting division of pipet
Inventor: LEE YONG JAE
IPC: G01F11/32
Filed: 2002-04-15
Abstract: PURPOSE: A method for discharging quantitative flow for setting division of pipette is provided to improve workability and productivity by automatically adjusting a level of water in a standard pipette. CONSTITUTION: A water source(10), a pipette material(20), and a standard pipette(30) are arranged in such a manner that a height difference is maintained therebetween. Water contained in the water source(10) is transferred into the pipette material(20) by operating a primary valve device(40a). Water filled in the pipette material(20) is transferred into the standard pipette(30) by operating a second valve device(50a). At this time, if a water level reaches a primary setting notch mark, the second valve device(50a) is closed. A water level in the pipette material(20) is primarily measured as water is discharged from the pipette material(20) to the standard pipette(30). Then, water filled in the pipette material(20) is transferred into the standard pipette(30) by operating the second valve device(50a) until the water level in the standard pipette(30) reaches a secondary setting notch mark. A water level in the pipette material(20) is secondarily measured as water is discharged from the pipette material(20) to the standard pipette(30).
Patent KR-20030082220-A (KR)
Inventor: YOO MYEONG SEOK
IPC: B60H3/06
Filed: 2002-04-17
Abstract: PURPOSE: An air filter for an automobile is provided to allow sanitary and cozy air to be introduced into a car room. CONSTITUTION: An air filter(1) includes a bent hardwood charcoal non-woven fabric formed by fusing synthetic high molecular adhesive, hardwood charcoal material and synthetic fiber using ultrasonic waves, allowing some of two-dimensional random arrangement of fiber to be joined to be three-dimensional random structure by needle punching, and bending the hardwood charcoal non-woven fabric zigzag while heating; and a filter frame(20) formed around a circumference of the bent hardwood charcoal non-woven fabric by injection molding to receive and to be joined to the bent hardwood non-woven fabric. The hardwood non-woven fabric comprises 1-6wt% of synthetic high molecular adhesive, 10-25wt% of the hardwood charcoal material and 69-89wt% of the synthetic fiber, and is bent zigzag under 150-250 deg.C. A knob(23) is placed on at least one end of the filter frame to allow easy attachment and detachment of the air filter to and from an air inlet of an automobile.
Patent KR-20030083468-A (KR)
Title: Mixing apparatus of toner and carrier for developer magnet roll
Inventor: BAEK CHUNG GUK
IPC: G03G15/06
Filed: 2002-04-23
Abstract: PURPOSE: A device for mixing a developing agent of a magnetic roll developer is provided to keep the concentration of toner in a developing agent supplied to a photosensitive drum, thereby making the concentration of the toner transferred to a recording paper uniform. CONSTITUTION: A device for mixing a developing agent of a magnetic roll developer includes an element for making the concentration of toner in a developing agent uniform. The element is attached to a doctor blade(70) mounted apart from an outer peripheral surface of a developing roll(30), and the doctor blade serves to regulate the thickness of a developing agent layer attached to the outer peripheral surface of the developing roll. The element makes the surface of the developing agent layer primarily to make the concentration of the toner uniform in the developing agent passing through the doctor blade. The element has a guide plate(80) formed with both ends fixed to the doctor blade and a middle part between the both ends apart from the doctor blade by a predetermined distance, and an elastic film(86) attached to a top surface of the guide plate.
Patent KR-20030087469-A (KR)
Title: Methode of Manufacturing Carbon Nanomaterials By Utilizing Mechanochemical Treatment technology and Carbon Nanomaterials
Inventor: RYU HO JIN
IPC: B82B3/00
Filed: 2002-05-10
Abstract: PURPOSE: A method for preparing a carbon nanomaterial by using mechanochemical treatment and a carbon nanomaterial prepared by the method are provided, to obtain a thermally and chemically stable and environmental-friendly carbon nanomaterial. CONSTITUTION: The method comprises the steps of (S100) mixing nickel and a carrier catalyst; (S200) preparing a supported catalyst from the mixture by using mechanochemical treatment; (400) pretreating the supported catalyst under hydrogen gas atmosphere; (S500, S600) reacting the pretreated catalyst with the pyrolyzed hydrocarbon gas to prepare a carbon nanomaterial; and optionally cooling the carbon nanomaterial under argon gas atmosphere. Preferably the carrier catalyst comprises aluminum hydroxide, and the mixture comprises nickel and the carrier catalyst in the ratio of 10.0 : 8.0-12.0 by weight. Preferably the hydrocarbon gas comprises acetylene gas.
Patent KR-20030089992-A (KR)
Title: A management method of sctp multi-association
Inventor: JUN GYEONG PYO
IPC: H04L47/40
Filed: 2002-05-20
Abstract: PURPOSE: A method for managing a multi-association in an SCTP(Stream Control Transmission Protocol) is provided to enable many systems to transmit data using an SCTP by registering address information and association identifications in an address information cache and using them for association setup, update and release. CONSTITUTION: An SCTP protocol handling process monitors a received signal(S301), and confirms the type of the received signal(S302). If the received signal is a control signal and the control signal is an SCTP initialization message(S303), the SCTP protocol handling process executes SCTP initialization process(S304). In case that the received signal is an association message and the association message is an association setup message from an upper layer protocol(S305), the SCTP protocol handling process searches an address information cache for association information(S306). If the address of the association message has not been registered(S307), the SCTP protocol handling process registers the address information of the association message in the address information cache(S308) and sets up the association with an adjacent SCTP node(S309).
Patent KR-20030090827-A (KR)
Title: A thin film transistor array substrate including the wiring, and a method for manufacturing the substrate
Inventor: CHOI PIL MO
IPC: G02F1/136
Filed: 2002-05-22
Abstract: PURPOSE: A thin film transistor array substrate and a method for manufacturing the same are provided to realize the uniform characteristic of the thin film transistors by preventing a channel part of a semiconductor layer from being exposed to an external environment. CONSTITUTION: A conductive material is accumulated on a substrate and is patterned to form a gate wiring including gate lines(121) and gate electrodes(123). A gate insulating film(140) is accumulated on the substrate. An amorphous silicon layer is formed on the gate insulating film. The amorphous silicon layer is crystallized to form a polycrystalline silicon semiconductor layer(150). Resistant contact layers(163,165) are formed on the semiconductor layer. A data wiring including data lines, and source and drain electrodes(173,175) are formed on the gate insulating film or the semiconductor layer.
Patent KR-20020090164-A (KR)
Inventor: HWANG SEON UNG
IPC: H04R11/00
Filed: 2002-05-25
Abstract: PURPOSE: A vibration device for a mobile communication terminal is provided to expand a resonance point section of a driving signal as using an existing vibration element, thereby obtaining a maximum vibration with simple configuration and maintaining a frequency of the driving signal to show the maximum vibration. CONSTITUTION: A vibrator(110) generates a vibration. A frequency generator(130) generates a driving signal having a predetermined frequency. A driver(120) drives the vibrator(110) by supplying the driving signal to the vibrator(110). A frequency controller(140) controls a frequency value of the driving signal. The vibrator(110) includes a vibrating coil driven by the driver(120), and includes a magnet moved in response to an electric field generated in the vibrating coil. The driver(120) supplies a current to the vibrating coil in response to the driving signal supplied from the frequency generator(130). The current is an alternate current whose direction is changed according to a predetermined frequency. The frequency of the current is determined by the frequency controller(140).