baber/WOPTO huggingface dataset:
Patent KR-20010027213-A (KR)
Inventor: BAEK SEUNG DAE
IPC: H01L23/12
Filed: 1999-09-11
Abstract: PURPOSE: A method for solder ball mounting of semiconductor package is provided to improve soldering reliability of semiconductor package by fixing a solder ball on a pad without flux, and to make a semiconductor package without a post soldering cleaning step. CONSTITUTION: A solder resist covers a pad except a soldering attach position for making a package body(32). In the package body, a multi-level wiring pattern is formed with attaching a semiconductor chip. A stencil tool(40) with many holes is arranged on the package body(32). An outer electrode of BGA(Ball Grid Array), solder ball(33), is treated using fluorine plasma, and the surface of solder ball(33) is phase shifted to fluorine oxide. After phase shifting, the solder ball(33) is loaded in the hole of stencil tool(40) using a solder ball pick up equipment. Using an ultrasonic transducer(50), ultrasonic is applied to the solder ball(33) to fix the solder ball(33) on the pad.
Patent KR-20010028281-A (KR)
Inventor: HUH WAN UK
IPC: C04B2/02
Filed: 1999-09-20
Abstract: PURPOSE: A method for controlling hydration of calcium hydroxide by using rotary kiln furnace exhaust is provided which controls the hydration of the calcium hydroxide within a permitted limit of temperature increasing of calcium hydroxide product when the calcium hydroxide is transferred or stored. CONSTITUTION: To control the hydration of calcium hydroxide, the surface of the calcium hydroxide after calcination is re-carbonized by circulating a part of exhaust, which is produced from calcination of limestone into the calcium hydroxide and contains carbon dioxide, in a cooler, wherein the exhaust is put into the cooler with containing 2.0-15.0 wt.% of carbon dioxide based on the total cooling air.
Patent KR-20010028680-A (KR)
Inventor: KIM SANG CHEOL
IPC: H04L12/28
Filed: 1999-09-22
Abstract: PURPOSE: A circuit for controlling re-transmission in an Internet interface device is provided to delay transmission if much network traffic exists in a LAN interface, and to implement re-transmission of data in hardware. CONSTITUTION: An Ethernet controller(20) controls an operation for Internet interface using the Ethernet. A CODEC(COder/DECoder,50) encodes or decodes transceived data. A transceiver(60) transceives data. A CPU(30) controls LAN collision and data re-transmission. A collision control logic(40) temporarily delays data transmission between the Ethernet controller(20) and the CODEC(50) if LAN collision is generated, and re-transmits a frame if transmission is failed at predetermined number of times according to a back-off algorithm.
Patent KR-20010029256-A (KR)
Title: Emmision gas control device
Inventor: LEE JAE CHEOL
IPC: F01N9/00
Filed: 1999-09-30
Abstract: PURPOSE: An apparatus for controlling exhaust gas is provided to improve performance of an engine in a warming up state and to enhance exhaust gas purifying efficiency at initial ignition by controlling exhaust pressure of exhaust gas. CONSTITUTION: In an apparatus for purifying exhaust gas exhausted from an engine exhaust manifold(50) via a catalytic converter(52), an exhaust pipe(60) has two branch passages(61,62) is formed to connect the exhaust manifold with the catalytic converter. A valve(70) is installed in one of the branch passages to open and shut off an exhaust passage. An actuator(80) is included to open and shut off the valve by rotation. If temperature of the cooling water of the engine is less than a reference value, the actuator is operated to shut off the valve. Otherwise, the valve is opened. Herein, purifying is started earlier by variation of the sectional area of the exhaust pipe corresponding to the temperature of the cooling water. Simultaneously, exhaust pressure of the exhaust gas is reduced. Therefore, performance of the engine is improved.
Patent KR-20000028832-A (KR)
Inventor: BROWN MICLE KENES
IPC: G06F3/16
Filed: 1999-10-05
Abstract: PURPOSE: An apparatus and method for embodying interactive voice response(IVR) application, machine readable medium, and IVR system is provided to embody an IVR application on internet or other computer network by forming an IVR platform having a speech synthesizer, a grammar generator, and a speech recognizer. CONSTITUTION: An apparatus for embodying IVR application(100) has a web-based IVR platform(102), a network(104), a plurality of servers(106-i), and an audio interface device(108). The network(104) indicates an internet, an intranet, a local area or a wide area network, a cable network, and a satellite network. The communication between the IVR platform(102) and one or more servers(106-i) is performed through a connection formed using TCP/IP reference or other suitable communication protocols. The audio interface device(108) communicates the IVR platform(102) via a PSTN, a cellular telephone network or other type wireless network, a data network such as internet, or a network(109).
Patent KR-20010037147-A (KR)
Inventor: JUNG JIN HYEON
IPC: F16D57/00
Filed: 1999-10-14
Abstract: PURPOSE: An oil pressure brake having a noise reducing device restrains a noise generated in a brake system. CONSTITUTION: An oil pressure brake comprises sound absorbing panels(50), concave grooves, sound absorbing materials and sound absorbing and vibration absorbing oil(40). The sound absorbing panels(50) are fixed on the inside wall of a cylinder(10). The concave grooves are formed on a lower end surface(21) of a piston(20) and on an upper end surface(31) of a chisel(30). The sound absorbing materials are attached to the concave grooves. The vibration absorbing oil(40) is filled in the cylinder(10). The sound absorbing materials, the vibration absorbing oil(40) and the sound absorbing panels(50) absorb or buffer impact noises and vibrations generated when a piston(20) and the chisel(30) contact.
Patent KR-20010037579-A (KR)
Inventor: MUN HUI CHAN
IPC: H04J13/18
Filed: 1999-10-13
Abstract: PURPOSE: A method and a device of informing acquisition is provided to be capable of transferring a message through a common channel in a code division multiple access communication system. CONSTITUTION: A mobile station transmits a preamble for accessing a base station and receives channel allocation information received from the base station depending on the preamble. The mobile station allocates a control channel receiver for receiving power control information transmitted from the base station and a backward packet common channel transmitter for transmitting a message, and then sends a message through the backward packet common channel transmitter. The mobile station controls a transmission power of a backward common channel transmitter depending on the power control information received through the control channel receiver.
Patent KR-20010038473-A (KR)
Inventor: KIM YUN GU
IPC: G06F1/26
Filed: 1999-10-25
Abstract: PURPOSE: A notebook computer pack battery is provided to supply an electric power to a micro computer storing data in the pack battery when an external power supply is stopped so as to prevent a data loss caused by stopping the supply of the external power. CONSTITUTION: The device comprises a power input port(100), a micro computer(120), single batteries(140,160,180), the first control element(200), a charging element(220), a discharging element(240), the first diode(340), the second diode(360) and a temperature sensor(400). The power input port(100) allows an external electric power to be supplied into the notebook computer. The micro computer(120), connected to the power input port(100), receives the electric power via the power input port(100) and performs an overall control of the pack battery. The single batteries(140,160,180), serially connected, is charged by the external power. The first control element(200) includes the charging element(220) and the discharging element(240). The first diode(340) and the second diode(360) continue to supply the electric power for the micro computer(120) although the external power supply is cut off.
Patent KR-20010039057-A (KR)
Inventor: BAE SEONG GEUN
IPC: H04N7/015
Filed: 1999-10-28
Abstract: PURPOSE: A wide band spectrum electromagnetic wave receiver of a digital TV and a control method of the same are provided to be suitable to the realtime implementation according to the commercial usage of digital broadcasting, satisfy the gain required to a base band and resist periphery noise CONSTITUTION: A tuner(20) converts RF signals into IF signals used in the digital TV. A band filter(30) filters noise from the converted IF signals. An IF demodulator(40) converts the filtered IF signals into base band signals. An A/D converter(50) converts the base band signals into digital signals in accordance with a clock signal. A VSB(Vestigial Sideband) demodulator(60) demodulates the digital signals and then outputs a polarity control and AGC control signal to the IF demodulator(40). A clock controller(70) provides clocks to the A/D converter(50) and VSB demodulator(60). A controller(80) provides an initializing signal and a channel shift signal to the tuner(20), and counts the error factors of the VSB demodulating control signal, the channel shift signal and the demodulated signal. A buffer(90) temporarily stores signals demodulated in the VSB demodulator(60) to output the signals at output timing. A select output(100) selectively outputs audio and video signals from the signals output from the buffer(90).
Patent KR-20010039134-A (KR)
Inventor: LEE MAN YEONG
IPC: A01K47/00
Filed: 1999-10-29
Abstract: PURPOSE: A method for breeding artificially domestic Bombus ignitus Smith indoors as a pollen carrier insect by offering the most suitable environment is provided. CONSTITUTION: The method for breeding artificially domestic Bombus ignitus Smith indoors is composed of the following steps of: (i) a first step to transfer domestic Bombus ignitus Smith collected outdoors in a portable box having many ventilating holes to an indoor breeding room in condition of temperature 30±1deg.C, relative humidity 60±5% and darkness; (ii) a second step to breed in a box(30) for settlement and inducing oviposition while supplying honey and pollen prepared by freezing fresh pollen at -60deg.C for 20days, and mixing 60% acacia honey; (iii) a third step to transfer into a box for swarming when worker bees appear; and (iv) a fourth step to transfer new queen bee and male bee which appear after two month into a net box for copulation.
Patent KR-20000029425-A (KR)
Inventor: SAKAMOTO RYOJI
IPC: H01L29/812
Filed: 1999-10-29
Abstract: PURPOSE: A field effect transistor is to make the linearity of mutual conductances gm flattened throughout the wider region of a gate bias. CONSTITUTION: A field effect transistor is a MESFET(metal semiconductor field effect transistor) comprising a cap layer(17) having Schottky conjunction with a channel layer(13) and a gate electrode(20), and especially, one or more subsidiary layers are formed between the channel layer and the cap layer, a doping concentration of the one or more subsidiary layers being lower than that of the channel layer and higher than that of the cap layer. The profile of the doping concentration of the one or more subsidiary layers is set to decrease from the channel layer to the cap layer in the exponential functional form.
Patent KR-20010046820-A (KR)
Inventor: YOON DOO MAN
IPC: H04B7/26
Filed: 1999-11-15
Abstract: PURPOSE: A base station for automatically supplying an area code to a mobile telephone and the base station are provided to automatically supply an area code of a corresponding area to the mobile telephone, if a mobile telephone user does not recognize the area code of the moved area. CONSTITUTION: An area code, where a base station(10) is installed, is installed in the base station(10). The base station(10) transmits the set area code to mobile telephones entering a communication range. The mobile telephones(11) receive the area code of the area from the base station(10), for storing the area code. The area code, where the base station is installed, is remotely installed in the base station(10).
Patent KR-20000007014-A (KR)
Inventor: PARK JUN SANG
IPC: G06Q30/00
Filed: 1999-11-19
Abstract: PURPOSE: A merchandise selling method is provided to discount a price of a desirable merchandise according to a game result in an internet electric commerce. CONSTITUTION: The merchandise selling method comprises the steps of: sending a merchandise order document to a web server; outputting a game choice screen on a personal computer screen of a buyer after accepting the order document comprising a buying price; outputting a game on the computer screen of the buyer when the game is selected; sending a game result to the web server when the user completes the selected game; calculating a discount rate of the buyer according to the sent game result; and re-calculating a discounted price among a sanction amount according to the a calculated discount rate to send the discounted price to the buyer.
Patent KR-20010054212-A (KR)
Inventor: KANG CHANG SUN
IPC: H04B17/00
Filed: 1999-12-03
Abstract: PURPOSE: An apparatus for analyzing a radio link of a CDMA mobile communication system providing a multi-media service and a method thereof are provided to improve a performance of a system by generating a test call by service kinds to diagnose a link performance by service types on a real time basis and analyzing stored link performance parameters. CONSTITUTION: Radio link performance related data received through a network interfacing unit(210) of a system is inputted to a data logging block(223) through a network interfacing function block(221). The network interfacing unit(210) processes information transmitted and received to and from an ATM. The data logging block(223) generates various kinds of service calls provided by a CDM mobile communication system. That is, the data logging block(223) transmits and receives to and from the network interfacing unit(210) of a call set-up and completion information on a voice, an image and an Internet service, and once a specific call is completely set up, the radio link performance related data received from a base station is stored a data log filer(224) through the data logging block(223). At the same time, the radio link performance related data are transmitted to a real time performance analyzing block(231). After the real time performance analyzing block(231) analyzes the performance related data by performance items, classifies them by elements(121-125) and provides the analysis result through a graph display block(233) on a screen for a user's viewing. As for the data file stored in a data log file(224), a statistical processing result and an analysis result in a time zone are provided as a graph according to a command inputted through a user interface(240) by a user.
Patent KR-20010055045-A (KR)
Inventor: HA MAN HYO
IPC: H03H9/00
Filed: 1999-12-09
Abstract: PURPOSE: A method for manufacturing a surface acoustic wave filter is provided to conduct a patterning operation on metals difficult to hard etch such as Al, Mg and Cu without using expensive equipment. CONSTITUTION: In the method for manufacturing a surface acoustic wave filter, a first photo registry(PR1) is coated on a piezoelectric substrate and a pattern is set on the substrate. A metal difficult to dry etch such as Al and Mg is laminated on the photo-registry coated substrate. A second photo registry(PR2) having a lower density than the first registry is coated and leveled on the laminated substrate. The leveled second registry is etch-backed exposing part of the surface. Then the metal surface on the first photo registry is etched. The final pattern is formed after the first and second registries are eliminated.
Patent KR-20010055209-A (KR)
Inventor: KANG GYU WON
IPC: F16J1/00
Filed: 1999-12-10
Abstract: PURPOSE: An offset piston mechanism is provided to increase the amount of sucked air and to reduce frictional force through varying strokes of a piston. CONSTITUTION: First rotation connecting parts(4) are inserted to a pin boss part of a piston. Herein, the first rotation connecting parts are formed on the same axle. A second rotation connecting part(7) is integrally connected between the first rotation connecting parts through arms(8). Herein, the second rotation connecting part is connected in an eccentric state. Therefore, a piston pin(1) is formed. A piston mechanism formed by a piston, the piston pin, and a connecting rod are installed in a cylinder block for reciprocating. When sucking air, the amount of air is increased as much as the eccentricity of the piston pin. In an explosion stroke, the frictional force of the piston is substituted by the torque of the connecting rod for reducing frictional force.
Patent KR-20010056015-A (KR)
Inventor: KIM HAN IL
IPC: B60R16/00
Filed: 1999-12-14
Abstract: PURPOSE: A solenoid driving circuit prevents eddy current from flowing in a transistor. CONSTITUTION: A solenoid driving circuit comprises a solenoid driving control part(10), a solenoid driving part(20), a solenoid(30), a free wheeling control part(40), a free wheeling part(50) and an eddy current prevention part(60). The solenoid driving control part(10) contains a transistor(TR1) and receives a first signal from a main control unit to control the driving of the solenoid(30) depending on the on/off state of the transistor(TR1). The solenoid driving part(20) contains a transistor(FET1) and is turned on/off by the output of the solenoid driving control part(10) as the output is connected to the gate of the transistor(FET1). The solenoid(30) operates by the output of the solenoid driving part(20). The free wheeling control part(40) contains a transistor(TR2) and is turned on/off by a second signal inputted to the base of the transistor(TR2) to control the operation continuously flowing current in the solenoid(30) when the solenoid driving part(20) is turned off. The free wheeling part(50) contains a transistor(FET2) and is turned on/off by the output of the free wheeling control part(40) as the output end of the free wheeling control part(40) is connected to the gate of the transistor(FET2). The eddy current prevention part(60) includes an eddy current detector(RS) and a current sink part(TR3). The eddy current detector(RS) is connected to the source of the transistor(FET1) to detect eddy current flowing in the transistor(FET1). The current sink part(TR3) is activated when eddy current is detected to sink current impressed to the gate of the transistor(FET1).
Patent KR-20010056449-A (KR)
Inventor: BONG WON JONG
IPC: H01L21/30
Filed: 1999-12-15
Abstract: PURPOSE: A gas supply assembly for fabricating semiconductor device is provided to enable the simultaneous gas spraying or gas charge by mounting a gas spraying assembly and a gas charging assembly on a transporting cart. CONSTITUTION: In the gas supply assembly, a gas bomb(30) is provided. A transportation cart(40) has doors(43a,43b), a container(41) to which commodities can be put and a supporting platform(42) to keep the gas bomb. A gas spray part(50) is attached to one side of the container to thus supply gas from the gas bomb and sprays gas supplied to monitor if there is any leakage in the pipe link part of the semiconductor device. A gas charging part(60) is attached to a side of the container, and supplies gas at the same time along with the gas spray part as well as charging the gas into the semiconductor device.
Patent KR-20010064922-A (KR)
Inventor: KIM SANG HO
IPC: B60J5/04
Filed: 1999-12-20
Abstract: PURPOSE: A side protector structure of a door of a car is provided to tightly contact the side protector to an outer circumferential surface of the door in a state that an attachment part is mounted on the door by maximizing thickness and width of the attachment part. CONSTITUTION: A side protector structure of the door of the car includes a hollow part(13). The hollow part is formed between an ornamental part(12) and an attachment part(14) constituting the protector. The attachment part has at least one or more reinforcing ribs formed at both sides of the attachment part. The reinforcing ribs are contacted to an outer circumferential surface of the door when the protector is mounted. When the protector is mounted on the door, a clip(15) or a bolt is inserted into a coupling hole(17) according to the shape of an insertion hole(8) formed in the door.
Patent KR-20010063348-A (KR)
Inventor: KWON SEONG TAE
IPC: H04B1/38
Filed: 1999-12-22
Abstract: PURPOSE: A necklace for generating sound in electronic device is provided for a handset unit built in a hooking unit to be separated from a device body, so that the necklace type electronic device can be easily used. CONSTITUTION: In a handset unit integrating a telephone receiver and a telephone transmitter, a main wire(3a) is built in a hooking unit, to make a lower part be exposed on external of the hooking unit. An electric connection terminal(4b) is mounted on a lower end of the main wire(3a). At least one feeder line(3b) is connected with the main wire(3a) and is projected from the hooking unit. At least one telephone receiver is installed in an end of each feeder line. And a telephone transmitter is installed in a specific point of the feeder line.
Patent KR-20010057412-A (KR)
Inventor: CHOO DONG GYUN
IPC: C01F5/00
Filed: 1999-12-23
Abstract: PURPOSE: Provided is a method to eliminate calcium ion from magnesium solution which adds oxalic acid to magnesium solution to eliminate calcium impurities so that it produces high pure magnesium solution from low-level magnesium raw materials. CONSTITUTION: The method to eliminate calcium ion from magnesium solution with calcium component comprises the steps of: (i) mixing oxalic acid with magnesium solution including calcium component at 0.1:1 in weight ratio to precipitate insoluble calcium oxalate; and (ii) filtering the insoluble calcium oxalate.
Patent KR-20010061236-A (KR)
Inventor: KIM YEONG GYUN
IPC: G01M13/02
Filed: 1999-12-28
Abstract: PURPOSE: A testing method for the cleanliness of an automatic transmission is provided to check the distribution and the ingredient of impurities by analyzing the size, the number per size and the ingredient of the impurities. CONSTITUTION: A cleanliness testing method for an automatic transmission contains a step sampling and analyzing the automatic transmission per component; a step cleansing the components; a step filtering cleansing solution through specific filters(21); a step removing oil from the filter using specific solution; a step measuring the actual weight of the impurities from the filter; and a step analyzing the image of the impurities by a CCD(charge coupled device) camera(50), an image transmitting device(51) and a display device(52). The image analyzing step additionally contains a step obtaining the image of the impurities; a step editing and measuring the image and analyzing the change of color; and a step analyzing the particle size of the impurities.
Patent KR-20010061705-A (KR)
Inventor: JANG SEOK SUL
IPC: B21D28/26
Filed: 1999-12-28
Abstract: PURPOSE: A metal plate processor is provided to cut and to punch at the same time. CONSTITUTION: A device for processing a metal plate contains a moving member arranged a guide bar(112) through the upper face of a base(100) and loaded a motor(118) and a rotating surface plate(116) for rotating in the guide bar(112); a punching portion formed a frame(200) for forming supporting structure by extending from the base(100) and to punch a hole in a processed plate; and a cutting portion to cut the processed plate circularly by suspending in the frame. Thereby, the punching and the cutting operations are performed easily.