baber/WOPTO huggingface dataset:
Patent KR-20030088198-A (KR)
Title: Data line voltage control circuit in semiconductor memory device
Inventor: LEE JONG HUN
IPC: G11C11/4091
Filed: 2002-05-13
Abstract: PURPOSE: A data line voltage control circuit of a semiconductor memory device is provided, in which a data sense amplifier sufficiently amplifies data of a local data line pair while easy is controlled. CONSTITUTION: A local equalization unit(240) equalizes the first local data line pair(RI01,RI01B), and releases the equalization of the first local data line pair in response to the first control signal which is disabled when a memory block corresponding to the first local data line pair is selected. A precharge unit(250) precharges the first local data line pair with a power supply voltage, and starts to precharge the first local data line pair in response to the second control signal which is disabled when the memory block corresponding to the first local data line pair is selected. A connection unit(260) connects the second local data line pair(RI02,RI02B) to the first local data line pair, and prevents the above connection in response to the third control signal which is enabled later than a column selection signal. A data sense amplifier (270) amplifies a voltage difference of the second local data line pair, and is enabled in a read operation of the semiconductor memory device, and is enabled by the fourth control signal enabled in response to the third control signal. And a multiplexer(280) is enabled in response to the fourth control signal, and transfers data of the second local data line pair to a global data line pair.
Patent KR-20030089018-A (KR)
Title: Hot Filter Press System
Inventor: LEE JONG ON
IPC: C02F11/12
Filed: 2002-05-15
Abstract: PURPOSE: Provided is a filter press being capable of hydrating non-dehydratable organic sludge such as livestock night soil sludge, thereby producing sludge cake with low moisture content. CONSTITUTION: The filter press comprises a fixed plate(2), a pressure plate(4) moving by a cylinder(3) toward the fixed plate(2), a plurality of membrane filter plates(5) with filtrate discharging holes, respectively, the plates(5) being installed between the fixed plate(2) and the pressure plate(4), a filter bag provided between membrane filter plates(5), a plurality of frames, each being installed in the center of the filter bag at every between the membrane filter plates(5), a plurality of heating plates(12) with a sludge supply hole at the center thereof, each being provided inside of the frames, pipes installed to the heating plates(12), a steam header(13) and a steam return header(14) installed above and below the heating plates(12), respectively, and connected to the pipes, and a vacuum pump(19) coupled to the filtrate discharging hole of the filter bag via pipes(20) for exhausting vapor generated by the heating plate(12).
Patent KR-20030090298-A (KR)
Title: Device for a hands free of wireless ear mike and telephonic communication using the same
Inventor: JUN SEONG HEON
IPC: H04B1/38
Filed: 2002-05-22
Abstract: PURPOSE: A handsfree system having a wireless ear microphone and a call method using the same are provided to transmit/receive radio frequency signals through the radio communication between a base station and a wireless ear microphone so that a user can make a call with the wireless ear microphone in his ear. CONSTITUTION: A handsfree system having a wireless ear microphone is comprised of a base station(310) and a wireless ear microphone(320). The base station(310), if a mobile terminal(400) is connected, modulates a voice signal inputted from the mobile terminal(400) into a frequency signal for radio communication. Also the base station(310) demodulates a frequency signal received from the wireless ear microphone(320) into a voice signal and transmits it to the mobile terminal(400). The wireless ear microphone(320) receives a frequency signal transmitted from the base station(310) and outputs it through a speaker. Also the wireless ear microphone(320) modulates a voice signal inputted through a microphone into a frequency signal and transmits it to the base station(310).
Patent KR-20030090343-A (KR)
Title: Heating system and exchanging device of dual heater
Inventor: KIM YUN HYUNG
IPC: F02N19/10
Filed: 2002-05-23
Abstract: PURPOSE: A dual heater heating system and a dual heater heat exchanger for an internal combustion engine are provided to be mounted independent of the engine, and connected with a coolant circulation line of the engine to heat a room even when the engine is stopped and warm up the engine at the same time. CONSTITUTION: A dual heater heating system(1) comprises a first bypass line(2a) and a second bypass line(2b) connected with a coolant recovery line(13); a check valve(21) installed to the coolant recovery line between points on which the coolant recovery line is connected with the first bypass line and the second bypass line; a pre-heater water pump(4) and an air heater water pump(5) installed to the first bypass line and the second bypass line, respectively; a dual heater heat exchanger(3) having a first water tube and a second water tube installed on both sides of a water jacket, and connected with the first bypass line and the second bypass line; a burner(7) mounted to heat the dual heater heat exchanger; an air duct(6) installed to form a heat exchange channel covering the dual heater heat exchanger and allowing air to flow therein; an outside air suction tube(61) connected to one side of the air duct to introduce fresh outside air; an outside air suction fan(72) mounted to the one side of the air duct to introduce outside air; an air damper mounted to the one side of the air duct to control suction of outside air; and a heating air discharge tube(62) connected to the other side of the air duct to supply a room with hot air having passed the heat exchange channel to be heated by heat exchange.
Patent KR-20030093607-A (KR)
Title: The method of manufacturing the bio-diegel engine fuel with fowl-oil
Inventor: PARK SE KYU
IPC: C10L1/04
Filed: 2002-06-03
Abstract: PURPOSE: A manufacturing method of bio-diesel engine fuel using chicken oil is provided to obtain clear chicken oil having high purity so that the obtained chicken oil is used as diesel engine fuel by collecting chicken oil from slaughtered chicken byproducts and passing the collected chicken oil through three steps of refining processes. CONSTITUTION: The method comprises first step of refining chicken oil collected from slaughtered chicken byproducts by glass tube specific gravity precipitation; second step of refining the first refined chicken oil using cloth (cotton cloth) bag; and third step of diluting the resulting chicken oil by mixing the chicken oil with kerosene (petroleum) in a ratio of 10:1 after completely removing fine powder and glycerine from the second refined chicken oil using filter paper, wherein the first refining step is performed by putting chicken oil containing moisture and chicken byproduct residue into a transparent glass tube and leaving the chicken oil alone for 24 hrs or more so that chicken oil is separated from the moisture and residue by specific gravity, the second refining step is performed to remove fine powder contained in the first refined chicken oil by filtering the first refined chicken oil using the cloth (cotton cloth) bag and receiving the chicken oil filtered by the cloth bag in a container positioned under the cloth bag so that about 50% of glycerine is removed from the chicken oil, and the third refining step is performed to completely remove glycerine remained in the second refined chicken oil by filtering the second refined chicken oil using filter paper spread out on plastic box positioned above a container for receiving chicken oil refined to a high purity and mixing the chicken oil and kerosene (petroleum)(18) after putting 10 liters of resulting chicken oil and 1 liter of kerosene (petroleum) into a weighing cylinder(19) so that bio-diesel engine fuel(17) is obtained.
Patent KR-20040000549-A (KR)
Title: Moveable Vehicle for Disposition of form in Cantilever of Bridge Deck
Inventor: LEE GANG GYUN
IPC: E01D19/00
Filed: 2002-06-21
Abstract: PURPOSE: A moving car for cantilever form dismantlement of a bridge is provided to prevent accidents by dismantling a form and a timbering, to reduce manpower and to improve productivity. CONSTITUTION: The moving car for cantilever form dismantlement of a bridge comprises: a moving car(1) provided with a primary motor(4) and a secondary motor(4') to move both wheels(5); a connecting steel(8) fixing a supporting steel(7), installed horizontally and provided with a hinge unit(6), to the upper ends of bracing steels(3,3') installed on both sides of a body of the dismantlement car(1); a workbench body(9) connected to the other side of the supporting steel(7) fixed with the connecting steel(8); and a workbench(10) provided with a two-stage safety handrail(11) and installed on the lower end of the workbench body(9).
Patent KR-20040006358-A (KR)
Title: Disc and hub assembly for electro-magnetic clutch
Inventor: HONG SEON JU
IPC: F16D27/112
Filed: 2002-07-12
Abstract: PURPOSE: A disk and hub assembly for an electronic clutch is provided to simplify the manufacturing process by modifying the assembling structure with restoring the disk and hub assembly with a leaf spring, to cut down manufacturing cost by reducing parts, and to minimize vibration and noise by using a damper plate in assembling and disassembling the disk. CONSTITUTION: A disk and hub assembly is composed of a hub(20) forming a spline(22) in the inner periphery, and integrally mounting a guide wall(26) having plural sliding grooves(25) on a flange(24); a leaf spring(30) contacted and supported on the upper surface of the flange by passing the guide wall of the hub; a disk(40) arranged around the flange of the hub and lifting up and down according to movement of the leaf spring; a stopper plate(50) combined with the upper part of the disk by riveting and composed of a projection(52) corresponding to the sliding groove of the guide wall; and a retainer(60) placed in the upper part of the stopper plate and combined with the guide wall.
Patent KR-20040007045-A (KR)
Title: Structure of optical fiber for laser beam launching
Inventor: OH HYEONG RYEOL
IPC: G02B6/42
Filed: 2002-07-16
Abstract: PURPOSE: A structure into which a laser beam integrated with an optical fiber is inserted is provided to replace with the lens by attaching a multi-mode optical fiber having a specific length to a single mode optical fiber. CONSTITUTION: The device includes a semiconductor laser diode(18), a single mode optical fiber(21) and a multi-mode optical fiber(20). The semiconductor laser diode(18) generates a light beam. The multi-mode optical fiber(20) is attached to the end portion of the single mode optical fiber(20). The multi-mode optical fiber(20) has a period representing a self-image which is attached to the end portion of the multi-mode optical fiber(20). And, the laser beam emitted from the optical point is inserted into the core of the single mode optical fiber(21) by the effect of the self-image.
Patent KR-20040011919-A (KR)
Title: Methods for calculating the trigonometric function using linear equations
Inventor: HAN TAK DON
IPC: G06T17/00
Filed: 2002-07-31
Abstract: PURPOSE: A method for calculating a trigonometric function using a linear equation is provided to reduce an error range through a linear equation, thereby promptly generating video of better quality. CONSTITUTION: A section of an X-axis in a trigonometric function curved surface is equally divided. Values of crossing points where vertical straight lines at boundary points of the divided sections cross the trigonometric function curved surface are obtained. Values of a trigonometric function to values of the sections are obtained by using a straight line equation connecting neighboring points in the obtained crossing points. Color values of fragments are decided by the obtained values of the trigonometric function. The section of the X-axis in a trigonometric function curved surface ranges from 0 to 90 deg.
Patent KR-20040014838-A (KR)
Title: Semiconductor memory device and semiconductor memory system with outputting refresh flag
Inventor: LEE JEONG BAE
IPC: G11C11/406
Filed: 2002-08-12
Abstract: PURPOSE: A semiconductor memory device and a semiconductor memory system generating a refresh flag are provided to remove the increase of an area of the memory device or the increase of a cycle time required in a read/write operation. CONSTITUTION: An oscillator(205) generates an oscillator output signal. A refresh timer(210) generates a refresh pulse in response to the first and the second control signal and the oscillator output signal and an external clock signal. A MRS part(215) generates the first control signal controlling a pulse generation time during a refresh of the refresh timer and the second control signal resetting the refresh timer, in response to an address signal and an external command. A refresh controller(220) generates a refresh control signal to refresh a memory cell in response to the refresh pulse. The refresh control signal is output to the external as a refresh flag while the memory cell is refreshed.
Patent KR-20040016136-A (KR)
Title: Heat-Driving Acoustic Orifice Pulse Tube Cryocooling Device
Inventor: KIM CHUN DONG
IPC: F25B9/14
Filed: 2002-08-16
Abstract: PURPOSE: A thermal-acoustic driving orifice type pulse tube cryocooling system is provided to be used as a cryocooler for cooling superconductive electronic equipments and a super-conduction applying equipment requiring small capacity. CONSTITUTION: A cooler(100) includes a driving part(10) comprising a first high temperature heat exchanger(12) having a heat transfer member attached thereon and storing driving gas, a combustor(11) allowing the driving gas to be heated and vibrated and applying flame to the heat transfer member, and a post-process heat exchanger(13) connected with the other side of the first high temperature heat exchanger and exposed to an outside of the combustor to control quantity of heat transmitted to driving gas; a regenerator(20) connected with the other side of the post-process heat exchanger, and allowing vibrated driving gas to flow in and out so as to exchange heat; a pulse tube(40) connected with the other side of the regenerator, and having a stack(41) installed therein correspondingly with inflow direction of driving gas so that driving gas with different temperature reciprocates on both sides of the stack; a refrigerating gas storage place(60) connected with the other side of the pulse tube, and having an orifice(62) installed therein to control amount of introduced driving gas so that pressure therein is constant; and a second high temperature heat exchanger(30) and a low temperature heat exchanger(50) installed between the regenerator and the pulse tube, and between the pulse tube and the refrigerating gas storage place, respectively, and exchanging heat with the outside.
Patent KR-20020070941-A (KR)
Inventor: KIM JEONG OK
IPC: F24H1/20
Filed: 2002-08-16
Abstract: PURPOSE: A boiler and a control method thereof are provided to maximize an energy efficiency of the boiler by rapidly storing and transmitting heat and preventing the thermal loss. CONSTITUTION: A carbon thermal medium(11) generating the high temperature heat is filled in the first vacuum vessel(12). An insulating member(13) and the second vacuum vessel(14) are provided at an outer portion of the first vacuum vessel(12). A heat exchanger(16) including a heating source, a temperature sensor(20) and a swirl forming member(17) are accommodated in the carbon thermal medium(11). An opening/closing valve(21) connected to a circulation pump(23) is provided at an inlet(16') of the heat exchanger(16). A level indicating pipe(19) and a drain valve(22) are provided at the other inlet(16") of the heat exchanger(16).
Patent KR-20040017067-A (KR)
Title: Biotreatment for milk-processing wastewater using mushroom's mycelia
Inventor: HWANG SEOK HWAN
IPC: A01G1/04
Filed: 2002-08-20
Abstract: PURPOSE: Provided is a method for treating whey wastewater, which can treat whet wastewater with more than 90% of treatment efficiency by biological treatment and produce mushroom mycelium instead of generating sludge. CONSTITUTION: The method comprises the steps of (a) separating protein from whey wastewater and (b) adjusting pH of the wastewater to be 3.8 to 4.6, and (c) biologically treating the wastewater at 25 to 32 deg.C using mushroom mycelium, wherein the mushroom mycelium is selected from a group consisted of ling chiu mushrooms, oak mushrooms, phellinus linteus, and agaricus bisporus.
Patent KR-20040019516-A (KR)
Title: Optical axis alignment device with distance measurement sensor and optical axis alignment method
Inventor: JIN JAE HUN
IPC: G02B6/26
Filed: 2002-08-28
Abstract: PURPOSE: An optical axis alignment apparatus comprising a distance sensor and an optical axis alignment method are provided to reduce the time of aligning an optical axis. CONSTITUTION: A CCD camera images alignment state of an optical fiber block(230) and a planar lightwave circuit(240). An optical signal generator is connected to an input port of the optical fiber block, and generates an optical signal having a fixed intensity. An optical power meter is connected to an output port of the planar lightwave circuit, and measures an intensity of the optical signal generated in the optical signal generator. A distance sensor(210) is located between the planar lightwave circuit and the optical fiber block. A support plate supports the planar lightwave circuit. A tri-axes fine tuning part is located below the optical fiber block and aligns it on the tri-axes. And a controller transmits an optical axis tuning signal to the tri-axes fine tuning part.
Patent KR-20040021454-A (KR)
Title: Ticket issue apparatus using dual tone multi-frequency of mobile communication terminal
Inventor: KIM HYEON SEUNG
IPC: H04W4/24
Filed: 2002-09-04
Abstract: PURPOSE: An apparatus for issuing tickets using the dual tone multi frequency of a mobile terminal is provided so that a user can automatically get a ticket through user authentication and reservation confirmation using his mobile terminal. CONSTITUTION: An apparatus for issuing tickets using the dual tone multi frequency of a mobile terminal consists of an issuer main server(30), a mobile terminal(10), and an automatic ticket issuing machine(40). The issuer main server(30) presents various ticket information through a mobile communication service provider(20). The mobile terminal(10), accessing the issuer main server(30), reserves a desired ticket. The automatic ticket issuing machine(40) confirms the validity of a reserved ticket transferred through the dual tone multi frequency of the mobile terminal(10) and issues the ticket automatically.
Patent KR-20040028266-A (KR)
Title: Method of transferring the semiconductor wafer
Inventor: HAN CHANG GEOL
IPC: H01L21/68
Filed: 2002-09-30
Abstract: PURPOSE: A transfer method of a semiconductor substrate is provided to be capable of minimizing time loss and effectively operating the equipment. CONSTITUTION: A semiconductor substrate is completed with pre-processes. Then, the semiconductor substrate is stored at an automatic stock. Whether the semiconductor substrate is capable of being processed by a cyber stock, or not, is decided before loading the semiconductor substrate at a predetermined part for post-processes. When the semiconductor substrate needs quickly processed, the semiconductor substrate is processed through a step 2(S2) and a step13(S13). When the semiconductor substrate doesn't have to be quickly processed, the semiconductor substrate is processed with a step 3(S3) to a step 12(S12).
Patent KR-20020080322-A (KR)
Inventor: JYOUNG KYEONG SIK
IPC: F23G5/46
Filed: 2002-10-01
Abstract: PURPOSE: A sludge incinerating apparatus is provided to efficiently incinerate sludges with reducing usage of fuel by drying wet contained in the sludges using waste heat retrieved when incinerating the sludges. CONSTITUTION: A sludge incinerating apparatus includes a multi-step incinerator(100), an air incinerator, a heat retrieving device, a sludge drier(130), a purifying filter, and a gas exhaust. The multi-step incinerator(100) has a hollow cylindrical shape. A sludge inlet is formed at an upper portion of the multi-step incinerator(100) and a sludge outlet is formed at a lower portion of the multi-step incinerator(100). The sludge is inputted into the sludge inlet after it has been dried through the sludge drier(130). A burner is provided below the multi-step incinerator(100) so as to maintain the incinerator in a predetermined temperature.
Patent KR-20040029875-A (KR)
Title: Tray apparatus for disk drive
Inventor: KWON O SANG
IPC: G11B17/02
Filed: 2002-10-02
Abstract: PURPOSE: A tray device for a disc drive is provided to handle a disc without a damage such as bending or a crack by applying a force to separate the disc correctly and firmly as a finger of a user can be deeply inserted into a lower part of the disc. CONSTITUTION: A tray(32) is equipped with a clamp(42) fixing the disc on a turntable(40) and is inserted/withdrawn from a set. A disc seat(34) is hollowly formed to an upper face of the tray and the disc is seated on the disc acceptor. A gap extending part formed on the disc seat expands a gab between one edge of the dice seated on the disc seat and a surface of the disc seat. The gap extending part is a groove(50) formed on the disc seat surface matched with the edge of the disc having a diameter smaller than the diameter of the disc seat.
Patent KR-20030032847-A (KR)
Title: Sealing composition and its use
Inventor: GREENWOOD PETER
IPC: C09K3/00
Filed: 2002-10-10
Abstract: PURPOSE: A sealing composition used for sealing rock or soil, its preparation method and a method for blocking the flow of liquid in a leaking part or cavity by inserting the sealing composition are provided, to improve the strength for a long time and the environmental friendliness. CONSTITUTION: The sealing composition comprises 35-50 wt% of a silica sol having an S-value of 72 % or more; and 0.2-5 wt% of at least one gelling agent. Preferably the silica sol is an aluminium modified silica sol and has a specific surface area of 40-230 m¬2/g and a silica particle size of 12-50 nm; and the gelling agent is selected from the group consisting of potassium chloride, calcium chloride, sodium chloride, magnesium chloride, magnesium sulfate and magnesium nitrate. Preferably the ratio of the silica particle to the gelling agent is 400:1 to 10:1 by weight.
Patent KR-20040032489-A (KR)
Title: Sliding door opening/closing apparatus
Inventor: KIM JONG GYUN
IPC: E05C3/04
Filed: 2002-10-10
Abstract: PURPOSE: An operator for a sliding door is provided to prevent the accident or theft by fixing at the partial open state of a door. CONSTITUTION: In a window structure provided with an operator for a sliding door, a window frame(100) is composed of right, left window frames(110,112) and upper, lower window frames(120,122) installed between the right and left frames(110,112). The upper and lower window frames(120,122) contain guide grooves(G) to move right and left windows(130,140), and the right and left windows(130,140) are moved along the guide grooves(G) of the window frames by a roller formed on the lower end.