baber/WOPTO huggingface dataset:
Patent KR-20010019575-A (KR)
Inventor: HAN UN YEONG
IPC: H04L12/28
Filed: 1999-08-28
Abstract: PURPOSE: An apparatus for constructing a LAN(Local Area Network) is provided to use a four-wire telephone line and a four-wire telephone distribution network in densely-populated districts such as apartment complexes or skyscrapers, so as to secure high speed of transmission speeds and high quality. CONSTITUTION: Distribution frames and each subscriber are connected through a telephone line(8). Each WJ(Wall Jack)(9) is installed on a terminal of a telephone line of each subscriber, and separates a high frequency area from a low frequency area. An ICU(Intermediate Control Unit)(6) and a CU(27) have frequency band separation functions by corresponding to the WJs(9). The ICU and the CU(6,27) are installed on the distribution frames. A telephone network is connected to a low frequency band, and a data network is connected to a high frequency band. The low frequency area is used for telephone connections, and the high frequency area is used for data communication, to supply telephone communication services and data communication services through the telephone line(8). The distribution frames are divided into an MDF(Main Distribution Frame) and an IDF(Intermediate Distribution Frame)(7).
Patent KR-20010026757-A (KR)
Inventor: YUM BO SEON
IPC: H04B1/40
Filed: 1999-09-08
Abstract: PURPOSE: A band pass filter of mobile telephone and a control method thereof are provided to decrease unnecessary components in high frequency signal by using selectively the band pass filter proper to the current channel according to the channel information of a base station. CONSTITUTION: A duplexer(11) controls a stream of high frequency signal received from an antenna(10), and transmits the high frequency signal to a high frequency receiving unit. The received high frequency signal is amplified in a low noise pre-amp(12), and then inputted to one of two receiving band pass filter(14,15). A controller(30) of the mobile terminal switches the first switch(13) and the second switch(16) by using the channel information of a base station. So that the receiving band pass filter(14,15) to be inputted the current receiving high frequency signal is selected. The receiving band pass filter(14,15) restrains the noise occurred by amplification in the receiving high frequency signal, and passes only the receiving high frequency signal of the applicable the frequency band. A frequency mixer(17) mixes the filtered receiving high frequency signal with local signal to down the signal of intermediate frequency band.
Patent KR-20000028854-A (KR)
Inventor: GLEN THOMAS P
IPC: H01L23/31
Filed: 1999-10-05
Abstract: PURPOSE: A small size of a plastic package, a lead frame and a producing method are provided to seal up an integrated circuit die. CONSTITUTION: A package(50) is made up from a lead frame and has a second surface(56) of a plane lower face and a tapered face of a side face(55), and a package body(51) of the package is sealed up. Herein, a die pad(22) of the package includes a first surface(23) of a plane upper face part, and an integrated circuit die(52) is contacted in a state of being placed on the first surface of the die pad. Each bonding pad of the die is connected with the first surface of a lead(30) by a bond wire(54), and the package includes each lead(30) cut from the lead frame along with the second surface as an inner side of a dam bar(29). In addition, the cut lead includes the cut end(35) extended toward a side face, passing the package side face(55) and is bent upward and downward.
Patent KR-20010036959-A (KR)
Inventor: CHO JIN HWAN
IPC: C09J7/00
Filed: 1999-10-12
Abstract: PURPOSE: A heat shrink sheet is provided for connecting and repairing telecommunication and electric cables and for connecting gas and/or water pipes and district heating pipes by applying cured resin or polyester hot-melt adhesive or glue material to the connection area. CONSTITUTION: A heat shrink sheet consists of polyethylene and reformed polyethylene compounds in a composition ratio of 9:1-5:5. The polyethylene and/or the polyethylene and its blending material have substantially more than 700% of elongation rate at room temperature. For sealing effect, hot-melt polyamide adhesive and/or a blend of polyamide adhesive and reformed polyethylene is used. Cured resin such as cyanoacrylate resin or hot-melt polyester adhesive or glue material is applied to connection area of the heat shrink sheet and has higher shear strength than the adhesive used for sealing it.
Patent KR-20000029184-A (KR)
Inventor: JANG MYEONG JUN
IPC: H01L21/66
Filed: 1999-10-19
Abstract: PURPOSE: A test pattern is provided to measure the delaying time of an interconnection metal line according to the resistant ingredient of a contact, a via contact, and a stack via stack and according to the resistant ingredient and the capacitance ingredient of the lines. CONSTITUTION: A movement frequency of a ring shaped oscillator(11) and a test pattern(12) are inserted to a circuit while not inserting the test pattern to the interval between each inverter(INV11-INV17) for comparing the movement frequency of the oscillator. Therefore, the delaying time of an interconnection metal line is analyzed. Also, the delaying characteristic of the interconnection metal line according to a capacitance ingredient is defined if the test pattern is induced by the capacitance ingredient.
Patent KR-20010037761-A (KR)
Inventor: KIM SEUNG JIN
IPC: D02J1/22
Filed: 1999-10-15
Abstract: PURPOSE: A drawing apparatus capable of improving a drawing effect by subjecting drawn yarn to quick cooling, smoothly supplying vapor by making vacuous the inside of a tank before supplying vapor and recycling waste heat is provided, thereby drawing quality and saving energy are improved. CONSTITUTION: The drawing apparatus comprises a tank(4) in which vapor is continuously introduced; a rotary roller(7)(11) placed inside an opening and shutting door(5) in the tank to hang a yarn reel and draw while rotating, wherein a water pipe(14) is installed at the backside and upper part of the rotary roller(7) placed inside the opening and shutting door; an injection nozzle(19) placed toward the rotary roller and raw yarn; a suction pipe(15) at the front part of the tank; a vacuum pump(16) placed at the end of the tank; a vapor discharge pipe(17) connecting to one part of the tank and an auxiliary tank of a boiler to recycle waste heat.
Patent KR-20010037847-A (KR)
Title: Connection Structure Of MDF
Inventor: KIM YOUNG CHUL
IPC: E04F19/04
Filed: 1999-10-20
Abstract: PURPOSE: A synthetic wood connecting structure is provided to make the connection of a ceiling panel and a ceiling easy and to assemble comfortably among panels. CONSTITUTION: Both ends of the sides of a wood(16) form a slant line type(11,15) at regular angles. A central part consists of W-type, Z-type or wave type. A groove(12) and projection(13) of a quadrangle, a triangle or a semicircular type are formed one after another according to types. An opposite wood part with the same structure is combined to the side of the wood. The connecting structure of synthetic wood such as a MDF(Medium Density Fiber) board is installed on the upper and lower part of a room and a living room.
Patent KR-20010038512-A (KR)
Inventor: KONG DAE OK
IPC: H01J29/88
Filed: 1999-10-25
Abstract: PURPOSE: A device for removing harmful charge for cathode ray tube is provided to improve a contact between external graphite and removing device, to prevent phenomenon of emitting heat as reducing contact resistance by discharging quickly harmful charge emitted between corn part of funnel and deflection yoke because conductive film is made of silver. CONSTITUTION: A device(30) for removing harmful charge for cathode ray tube is composed of resin film(32), conductive film(34) to be coated on resin film, insulation film(36) to be adhered closely to resin film at the same time coating conductive film, and conductive tape(38) to be coated on the top of conductive film(38) but to be coated on insulation film(36). Conductive tape(38) is inserted between corn part of funnel and deflection yoke and is sticked to external graphite.
Patent KR-20010046532-A (KR)
Inventor: KANG SIN YONG
IPC: F16K47/04
Filed: 1999-11-12
Abstract: PURPOSE: A throttle valve is provided to minimize the precipitation of powder and to lengthen the life of products. CONSTITUTION: A throttle valve(10) is composed of a body(12) and a rotor plug(16). In the body, a passage(14) is determined for fluid to pass through. The rotor plug opens and closes the passage of the body for controlling the amount of the fluid flowing over the passage. In the passage and the rotor plug of the throttle valve body, a thin film exists. After eliminating a passive film of the passage and the surface of the rotor plug, before forming the passive film, a primary film is coated. On the primary coated film, a secondary film is coated for preventing the corrosion of a metal material caused by pin-halls generated in the primary film. For the secondary film, the metal material made of tungsten is used. The throttle valve minimizes the precipitation of reacted by-products inside the valve.
Patent KR-20010048115-A (KR)
Inventor: BAEK JONG MUN
IPC: C23C8/20
Filed: 1999-11-25
Abstract: PURPOSE: A composite plasma carburizing method is provided which not only removes carbides such as Fe3C, Fe3C7, CrC2 and Cr7C2 formed on the surface of a metallic material but also improves carburizing rate due to the surface cleaning and activation by repeatedly performing sputtering, decarburizing and diffusing processes in the plasma decarburizing process. CONSTITUTION: In a surface hardening method carburizing using plasma, the composite plasma carburizing method comprises the processes of removing an oxide film of the surface of a sample by an inert gas at a carburizing temperature in the sputtering process; carburization heat treating the reactants after reacting an ionized carbon atom or activated carbon atom by the generation of plasma with the sample; performing diffusion process after passing through the sputtering process of decarburizing, cleaning of the surface and activating of the surface by plasma of a mixed gas. In a surface hardening method carburizing using plasma, the composite plasma carburizing method comprises the processes of performing the diffusing process and the cooling process after reducing a flow rate of hydrocarbon gas continuously or in stages during the plasma process.
Patent KR-20000052390-A (KR)
Inventor: HARA HIROSHI
IPC: H03K17/22
Filed: 1999-11-29
Abstract: PURPOSE: A power-on circuit installed in integrated circuit is provided to maintains a high resistance state of the integrated circuit terminal right after the power applied on an integrated circuit, and after a constant time until the integrated circuit started the acting. CONSTITUTION: A power-on circuit installed in integrated circuit comprises a ring counter(10), an output control circuit(52) and a pulse signal breaker circuit(12). The ring counter(10) generate the pulse signal continually after starting the source voltage(Vdd) applied on the integrated circuit memory. The output control circuit(52) controls the termianl(DQ) of synchronous integrated circuit memory maintaining in a high resistance state while input of pulse signal generated by the ring counter(10) to the output control circuit(52). A clock signal is inputted on the pulse signal breaker circuit(12). The pulse signal breaker circuit(12) is cut off the pulse signal inputting to the output control circuit(52).
Patent KR-20010049048-A (KR)
Inventor: LEE HAE RYONG
IPC: G06F11/14
Filed: 1999-11-30
Abstract: PURPOSE: A serial ROM program device for a PGA is provided to prevent of using else ROM recorder by recording a basic program in a serial ROM, thereby performing functions of a data bus matching unit, a memory matching unit and a serial ROM matching unit by a portion of the serial ROM. CONSTITUTION: A personal computer(100) capable of creating a program wanted by a user and an operator is provided. A peripheral processor(110) is connected to the computer(100) through a RS-232C cable, and converts a signal applied from the computer(100) into a data signal being matched to a circuit board(120) and outputs the signal. The plurality of circuit boards(120) are connected to the peripheral processor(110) through a data bus(DA-BUS) and record and store the applied data signal in a serial ROM(130) and apply the signal to a PGA(140) for constructing a logic circuit. A data bus(DA-BUS) matching unit receives and stores a program and data through the peripheral processor(110). A memory matching unit temporarily stores the signal applied from the data bus(DA-BUS) matching unit and outputs the signal to the memory or temporarily stores and outputs the signal applied from the memory. A serial ROM matching unit temporarily stores and outputs the signal applied from the memory. A serial ROM records and stores the signal applied from the serial ROM matching unit and comprises a PROM(programmable ROM), an EPROM(Erasable PROM) or an EEPROM(electronic EPROM) for outputting the signal to the PGA(140) when a power source is initially applied.
Patent KR-20010053659-A (KR)
Inventor: SEO GYEONG SEOP
IPC: H04B7/216
Filed: 1999-12-01
Abstract: PURPOSE: A method for managing a PPP resource of a simple IP member is provided to offer a packet data service in a mobile communication system. CONSTITUTION: If an audit request message is received from a PDC(411), a PPP transmits a PPP echo request message to a terminal(412). If a PPP echo reply message is received from the terminal(421), the PPP transmits an audit request message to the PDC(422). If a release PPP request is received from the PDC(431), the PPP releases the PPP(432). The PPP informs a release complete PPP to the PDC(433). If an abnormal status of a data terminal is sensed by periodically sensing the data terminal, the information for maintaining a status of a PPP protocol in an IWF is released.
Patent KR-20010055873-A (KR)
Inventor: YOON JONG HO
IPC: H01L21/20
Filed: 1999-12-13
Abstract: PURPOSE: A method for forming aluminum foil layer using ALD(Atomic Layer Deposition) is provided to solve a problem in a sputtering process, a weakness of an electro migration in A1 CVD(Chemical Vapour Deposition) process, and difficulties of Cu doping control by making a density of impurities doped on a film layer uniform, and accurately controlling a formation thickness of the film layer to improve the characteristics of a device. CONSTITUTION: A process forms an A1 film layer by repeating a circle of an ALD(Atomic Layer Deposition), an A1 precursor induction, a purge gas induction, an A1 precursor decomposition gas induction, and a purge gas induction process, until a predetermined thickness is formed. In order for doping Cu with a predetermined density on an A1 film layer, the process repeats a cycle of a Cu precursor induction, a purge gas induction, a Cu precursor induction, a purge gas induction, a Cu precursor decomposition gas induction, a purge gas induction process, in the center of repeating the A1 film layer formation process.
Patent KR-20010055939-A (KR)
Inventor: CHO SEONG GWON
IPC: B26F1/00
Filed: 1999-12-13
Abstract: PURPOSE: A borer prevents a connecting rod from being pushed by a drill on boring operation to bore an engaging hole of the connecting rod. CONSTITUTION: A borer includes a main clamp(1), an upper surface fiducial pad(2), a backup clamp(3), a joining surface side fiducial pad(6) and a backup clamp operating push rod(5). The main clamp(1) pressurizes a connecting rod(100) moving on a moving surface(10) to the boring position. The upper surface fiducial pad(2) supports the upper surface of the connecting rod(100) pressurized to the boring position by the main clamp(1). The backup clamp(3) pressurizes the central part of the connecting rod(100) forward when the connecting rod(100) is placed on a boring position by the main clamp(1). The joining surface side fiducial pad(6) supports the front surface of the connecting rod(100) to prevent the forward and backward movement of the connecting rod(100) when the connecting rod is pressurized forward by the backup clamp(3). The backup clamp operating push rod(5) pressurizes the backup clamp(3) toward the connecting rod(100) on the plane same with the contacting plane of the backup clamp(3) and the connecting rod(100).
Patent KR-20010064825-A (KR)
Inventor: LEE SANG HUN
IPC: G02F1/1335
Filed: 1999-12-20
Abstract: PURPOSE: A method for fabricating a back light unit metallic mold of a liquid crystal display is provided to mold the back light unit of the LCD with an X-ray lithography technology using a synchrotron radiation of a radiation accelerator and an ELECTRO-forming process. CONSTITUTION: A titanium(2) is deposited on a silicon substrate(1) using a thermal evaporator. After spin-coating a liquid phase PMMA on the silicon substrate, it is annealed at 180 deg.C for one hour. A PMMA plate of 1mm thickness is bonded with the liquid phase PMMA on the silicon substrate and then 1 kg weight is applied for three hours. The 1mm PMMA plate is lapped and polished to have 100 micrometer thickness. And, Cr and Au used as a conductive layer are deposited on the surface of a PMMA(3). And, a photo resist is spin-coated and is annealed on a hot plate. After exposing a UV ray, the photo resist is developed. Then, an X-ray absorb layer is obtained by an ELECTRO-forming. The unnecessary photo resist is removed. An X-ray from the radiation accelerator is exposed to the PMMA. Then, a titanium(10) for nickel plating is deposited on the PMMA pattern, and a nickel metallic mold is obtained by removing the silicon substrate by dissolving the PMMA with an organic solvent.
Patent KR-20010058229-A (KR)
Inventor: KIM CHEON SU
IPC: H03G3/00
Filed: 1999-12-27
Abstract: PURPOSE: An auto gain control circuit of variable gain amplifier is provided to supply control voltage of automatic gain control circuit by using gate-source voltage drop of MOS transistor. CONSTITUTION: A fixed resistor and a variable resistor are equipped in an automatic gain control circuit of variable gain amplifier. The variable resistor is constituted with connecting a plurality of MOS transistor which is operated in linear region in parallel. A dynamic range(D) can be changed to linear decibel(dB) according to control voltage(Vc). The variable resistor(r) is installed to supply the control voltage(Vc) of a little value separately in turn after connecting a plurality of MOS transistor in linear region in parallel. The control voltage(Vc) which is input to each gate of each MOS transistor is made for enough voltage drop to gate-source voltage of previous MOS transistor, and is input to gate of appropriate MOS transistor. In other words, the control voltage to be small enough to previous gate-source voltage is input in turn to gate of each MOS transistor which is connected in parallel.
Patent KR-20010058381-A (KR)
Inventor: JUNG GWAN YEOL
IPC: G02F1/136
Filed: 1999-12-27
Abstract: PURPOSE: A structure of a planar displaying apparatus and a fabricating method thereof are to simplify a fabricating process and thus facilely increase a displaying surface area, and also reduce a driving voltage of a row driver comparing with PALC(plasma addressed liquid crystal). CONSTITUTION: A source of a pixel TFT(thin film transistor) is connected to a common power source or a drain of a previous pixel TFT. A gate is connected with a gate line. An electrode at one side of a capacitor is connected with a data line. An electrode at the other side of the capacitor is connected with the drain of the pixel TFT. One side of the capacitor is commonly connected with an LC capacitor and the data line. The other side of the capacitor is connected with the common power source. At this time, an operation of the pixel TFT is controlled by a row driver. The source of the most left side pixel TFT and the drain of the most right side pixel TFT are connected with the common power source.
Patent KR-20010065729-A (KR)
Inventor: CHOI JAE MAN
IPC: H04N5/74
Filed: 1999-12-30
Abstract: PURPOSE: A scanning device of an image projection system is provided to reduce installation scale and realize a clear screen by controlling accurately a light path advancing direction of a synthesized light opposite to vertical and horizontal side of a screen with a first, a second mirror and each rotating member. CONSTITUTION: A vertical side mirror(44) reflects an incident light and is settled to shift a vertical directional position of the path into an appointed angle. A horizontal side mirror(46) reflects an incident light reflected at the vertical side mirror(44) and is settled to shift a horizontal directional position of the path into an appointed angle. A vertical side rotating member(48) is settled at a side or back of the vertical side mirror(44) and rotates the front in vertical direction to get the light path to be shifted into an appointed angle opposite to the vertical direction and to be reflected. A horizontal side rotating member(50) is settled at a side or back of the horizontal side mirror(46) and rotates the front in horizontal direction to get the light path to be shifted into an appointed angle opposite to the horizontal direction and to be reflected.
Patent KR-20010058600-A (KR)
Title: Underwater Investigation System
Inventor: LEE YEONG HO
IPC: G01S15/00
Filed: 1999-12-30
Abstract: PURPOSE: An underwater sensing system is provided to sense an object extensively by arranging a plurality of ultrasonic sensor parameters with an apposite curvature. CONSTITUTION: In an underwater sensing system, a pulse oscillator(100) generates a pulse signal to apply an electric signal to an ultrasonic sensor. An interface part(110) applies the pulse signal to the ultrasonic sensor and inputs a reflected wave signal focused to the ultrasonic sensor simultaneously. An ultrasonic sensor(130) receives the pulse signal to generate an ultrasonic signal and send the signal to the target object. The ultrasonic sensor receives the reflected signal to convert the signal into an electric signal. A part(140) of amplifying a received signal amplifies the electric signal input from the interface. A detecting circuit part(150) divides an image signal in the amplified signal. A part of amplifying the divided image signal is provided. A CRT(170) displays the image signal amplified and output from the part of amplifying an image signal. A synchronous circuit part(180) determines a period and phase of a horizontal and vertical electronic beam scanning to supply a synchronous signal to the pulse oscillator.
Patent KR-20010059608-A (KR)
Inventor: JUNG JIN SU
IPC: G01N25/18
Filed: 1999-12-30
Abstract: PURPOSE: A method for measuring abrasion of a cooling plate for a blast furnace body is provided to estimate a degree of abrasion of the cooling plate by measuring the temperature of the cooling plate during working. CONSTITUTION: A method for measuring abrasion of a cooling plate for the blast furnace body includes the step of obtaining a thickness(Ln) of a cooling plate through the following formula, Ln=(((T1-Tn)/(Tn-T2))((L2/K1)+(1/h2))-(1/h1))xk1, wherein T1 means the inside gas temperature of the furnace, T2 means the temperature of cooling water, Tn means thermocouple temperature inside the cooling plate, Ln means a residual thickness of the cooling plate, L2 means a distance from thermocouples(8,11,12) to the inside of the cooling plate, h1 means a coefficient of heat transfer between the inside gas of the furnace and the cooling plate, h2 means a coefficient of heat transfer of cooling water, and k1 means a heat conductivity of the cooling plate.