baber/WOPTO huggingface dataset:
Patent KR-20020019269-A (KR)
Title: Piston slap prevention device
Inventor: LEE JUN HO
IPC: F02F3/00
Filed: 2000-09-05
Abstract: PURPOSE: A device for preventing piston slap is provided to prevent a piston slap by removing a skirt unit of the piston and to reduce waste amount of oil and noise caused by driving the piston. CONSTITUTION: A piston slap preventing device comprises a piston head; a ring support combined to plural rings; a piston receiving a rotational movement of a crank shaft through a connecting rod; a cylinder combined to the piston; a piston pin(34) combined to an end portion of the connecting rod; a boss(32) engaged with the piston pin; a slap preventing unit(40) supporting movement of the piston; first and second frames(42,44) mounted on the slap preventing unit; plural rotating units(46,48); and a spring(52). Thereby, the piston slap preventing device prevents the piston slap by removing a skirt unit of the piston to reduce noise generated in driving the piston.
Patent KR-20010050726-A (KR)
Inventor: BELOW ARMIN
IPC: E21B1/00
Filed: 2000-09-29
Abstract: PURPOSE: A drilling and cutting device is provided to approach to the excellent drilling efficiency and to change the shock energy when a RPM(Revolution Per Minute) in a drilling spindle is equal. CONSTITUTION: A motor device shaft(1) contains two external teeth(4,6). The first external tooth(4) is rotationally combined with a second tooth(11) of a switching bush(9). The second external tooth(6) is rotationally combined with an additional tooth wheel(17) to be combined with a driving spindle(19). Thereby, the motor drive shaft is used for various purposes and operated simply and certainly. Moreover, the efficiency of the motor drive shaft is improved very much and the shock energy is changed when the rpm of the driving spindle is same.
Patent KR-20010050782-A (KR)
Inventor: KOMIYA NAOAKI
IPC: H01L51/50
Filed: 2000-09-30
Abstract: PURPOSE: To prevent lowering of voltage applied to anode and prevent deterioration of display grade CONSTITUTION: A wide part WD4 is mounted on an anode and a wide part WD3 is mounted on wiring HS2 extended from a cathode terminal TN2. A conductive material 100 formed of oxides is intervened therein to contact an anode 25 in a contact CN1 having large size.
Patent KR-20020028289-A (KR)
Title: Atm switch router interface device in imt-2000 system
Inventor: AHN GYEONG HWAN
IPC: H04L12/28
Filed: 2000-10-09
Abstract: PURPOSE: An apparatus for interfacing an ATM(Asynchronous Transfer Mode) switch router in an IMT(International Mobile Telecommunication)-2000 system is provided to miniaturize a structure and increase the efficiency in maintenance/management by mounting a BEIA(BTS E1 Interface Assembly) as one card type on the ATM switch router. CONSTITUTION: A BEIA board(210) connects to a plurality of BTSs(Base Transceiver Stations)(100) through an E1 line, receives ATM E1 signals from a plurality of BTSs(100), checks an error, divides the received ATM E1 signals by cell unit, and transmits the divided ATM E1 signals. An 155M physical control unit(220) connects to a plurality of BTSs(100) through the E1 line, receives the ATM E1 signals from a plurality of BTSs(100), detects a speed of the ATM E1 signals, and controls an output speed of the BEIA board(210) as 155M when the speed of the ATM E1 signals is the 155M speed. A 25M physical control unit(230) connects to a plurality of BTSs(100) through the E1 line, receives the ATM E1 signals from a plurality of BTSs(100), detects the speed of the ATM E1 signals, and controls the output speed of the BEIA board(210) as 25M when the speed of the ATM E1 signals is the 25M speed. A clock supply unit(240) supplies various system clocks to the BEIA board(210), the 155M physical control unit(220), and the 25M physical control unit(230). A router(250) performs an interface to be capable of performing an optical communication between the BEIA board(210), the 155M physical control unit(220), the 25M physical control unit(230), the clock supply unit(240), and a BSC(Base Station Controller)(300).
Patent KR-20020028418-A (KR)
Inventor: LEE SANG O
IPC: H03L7/197
Filed: 2000-10-10
Abstract: PURPOSE: A fractional-N frequency synthesizer apparatus using a sigma-delta modulator and a method thereof are provided, which improves a phase noise around an offset frequency of 1MHz, and obtains a frequency resolution of 10kHz exactly, as reducing spur generated under a specific condition. CONSTITUTION: The frequency synthesizer detects phases/frequency of a comparison frequency signal and a VCO(Voltage Controlled Oscillator) frequency signal, and generates a desired VCO frequency signal. A reference counter(200) divides a reference frequency signal(fref) from the external, and applies the divided result to a phase/frequency detector(210) as the first input. The phase/frequency detector detects a phase and a frequency of the divided VCO frequency signal(fVCO), and generates an output signal corresponding to the detected phase and frequency difference. A charge pump(200) sources and sinks a current in response to the output signal of the phase/frequency detector. A low pass filter(LPF)(230) generates a DC VCO control voltage(Vc) by filtering a low band component of a signal from the charge pump. A VCO(240) generates a VCO frequency signal(fVCO) oscillating in correspondence to the control voltage(Vc) from the low pass filter. A sigma-delta modulator(270) performs a sigma-delta modulation in response to an input signal(IN(m,k)) of a number of bits and a feedback coefficient(bi), and generates a fractional division ratio signal. A bit converter(260) converts 1 bit output signal(0 or 1) from the digital sigma-delta modulator into 1 and -1 of n bit.
Patent KR-20020030841-A (KR)
Inventor: KIM HYUN SU
Filed: 2000-10-17
Abstract: PURPOSE: A lottery ticket e-mail system is provided to add interests into a plain e-mail by adding a lottery ticket function to the e-mail and to provide an individual advertisement through the Internet by making an e-mail receiver see the previously registered advertisement during a lottery drawing procedure. CONSTITUTION: The system comprises steps of an e-mail sender connecting to a registered lottery ticket e-mail site through a computer and an Internet connection tool(s2), the e-mail sender selecting a desired e-mail form by clicking a button on a form selection bar(s3), the e-mail sender writing an e-mail like a general e-mail(s5) and clicking a lottery ticket e-mail send button(s6), and a computer of lottery ticket e-mail company automatically assigning a drawing date, a drawing address and a lottery number to the e-mail(s7) and transmitting the lottery ticket e-mail to a receiver(s8). The information for the transmitted lottery ticket e-mail is stored in a server as a database consisting of an e-mail address of sender and receiver, an advertisement file, a drawing date, a drawing site address and a lottery number.
Patent KR-20020031220-A (KR)
Inventor: BAEK GI HO
IPC: H01L21/027
Filed: 2000-10-23
Abstract: PURPOSE: Provided are a photoresist composition suitable to use in resist flow process, a method for forming a photoresist pattern using the same, and a method for forming contact hole using the formed pattern of photoresist. CONSTITUTION: The photoresist composition comprises a photoresist polymer, a photoacid generator, a crosslinking agent and an organic solvent. The crosslinking agent is a compound represented by formula 1 or 2. In the formulas, R1, R2, R3, R4, R5, R6 and R7 are individually hydrogen or C1-C10 alkyl group. The composition is used for method for forming a photoresist pattern by resist flow process.
Patent KR-20020031694-A (KR)
Title: Method for data transmission with double tx antennas in turn of forward link
Inventor: KIM GI JUN
IPC: H04B7/02
Filed: 2000-10-23
Abstract: PURPOSE: A method for transmitting data using two forwarded direction link transmitting antennas alternately is provided to perform a data transmission using two forward direction transmission antennas, transmit data to the corresponding terminal by selecting two forward direction transmission antennas alternately per each slot, decide an optimum forward direction transmission rate, and perform a forward direction data transmission with respect to two antennas. CONSTITUTION: A pilot signal(201) being transmitted in an 'n'th slot through a forward direction link in an antenna 'A' is received in a terminal. The terminal measures an intensity of the received pilot signal(201) and decides a forward direction data transmission rate(202) with respect to the antenna 'A'. The decided forward direction data transmission rate(202) is transmitted to a base station through a reverse direction link. The base station applies the forward direction data transmission rate(202) to an "n+2" slot timing with respect to the antenna 'A' and performs a forward direction link transmission as the corresponding data transmission rate(202). A pilot signal(204) being transmitted in an "n+1"th slot through a forward direction link in an antenna 'B' is received in a terminal. The terminal measures an intensity of the received pilot signal(204) and decides a forward direction data transmission rate(205) with respect to the antenna 'B'. The decided forward direction data transmission rate(205) is transmitted to the base station through a reverse direction link. The base station applies the forward direction data transmission rate(205) to an "n+3" slot timing with respect to the antenna 'B' and performs a forward direction link transmission as the corresponding data transmission rate(205).
Patent KR-20020031978-A (KR)
Title: System and method for performing remote medical examination
Inventor: LEE SEON BEOM
IPC: G06Q50/22
Filed: 2000-10-25
Abstract: PURPOSE: A system and a method for a tele-medicine by the iris recognition are provided to make a precise medical examine or necessary health management possible by returning the progress state of present disease symptom or a medical opinion for probable disease symptom to a patient after the tele-medicine through the iris recognition. CONSTITUTION: The tele-medicine system comprises an iris image capturing terminal(10) executing the image capture of patient's iris and a registration of address to transfer the medical opinion for iris image to a patient, a tele-medicine server(20) transferring the medical opinion for iris image to the address registered in the iris image capturing terminal and processing the database process for the iris medical examine opinion, a medical examine terminal(30) providing a medical examine result of iris image to the tele-medicine server, and a data communication network realizing the mutual communication of iris image data and medical opinion by linking the iris image capturing terminal, tele-medicine server and medical examine terminal with a network.
Patent KR-20020033953-A (KR)
Title: Current sense amplifier circuit for improving stability and amplification degree in semiconductor memory device
Inventor: KIM CHEOL SU
IPC: G11C11/419
Filed: 2000-10-31
Abstract: PURPOSE: A current sense amplifier circuit of a semiconductor memory device is provided, which improves an operation speed by increasing an amplification, and maintains a stability as to an increase of a power supply voltage. CONSTITUTION: PMOS transistors(MP31, MP32) has a structure where input ports(IN,INB) are connected to each source and gates and drains are connected cross coupled. That is, the PMOS transistors are sense transistors having a latch structure and sense inputted current difference. The input ports are connected data input/output line pair. Drains of each PMOS transistor are connected to an output port(OUT) and an inversion output port(OUTB). NMOS transistors(MN31,MN32) are load transistors operating as load resistors respectively, and have a diode structure where their gates and drains are connected to the drains of the PMOS transistors. The NMOS transistors receives currents(I1,I2) applied as input data through each PMOS transistor, and the output voltages are varied according to the supplied current. A latch(30) is connected with the NMOS transistors in parallel, and forms another current path from the PMOS transistors, in response to a bias voltage(BIAS). A bias circuit(32) activates or inactivates the bias voltage in response to a control signal.
Patent KR-20010051441-A (KR)
Title: Coating of ultra-hard materials
Inventor: COLLINS JOHN L
IPC: C23C30/00
Filed: 2000-11-03
Abstract: PURPOSE: A method for coating ultra-hard materials such as diamond materials. CONSTITUTION: A unit comprising a body(10) of an ultra-hard material having a layer(16) of plasma sprayed cemented carbide bonded to a surface(14) thereof through a bonding layer comprising an inner region(18) bonded to the surface and comprising a minor amount of a carbide-forming metal and a major amount of a ductile metal and an outer region(20) bonded to the cemented carbide layer and comprising a metal selected from nickel, cobalt, iron and an alloy containing one or more of these metals.
Patent KR-20010051472-A (KR)
Inventor: BAE MUN YOUL
IPC: G06Q50/08
Filed: 2000-11-06
Abstract: PURPOSE: A system for placing/receiving an order for a construction is provided to enable clients to cheaply and rapidly receive a service based on nationwide scaled information by constructing homepages for the service, and by enabling the clients to easily bid for a construction work and order articles. CONSTITUTION: A construction placing/receiving order system server(1) performs a construction placing/receiving order system equipped with functions for a public placing order, a specified placing order, a public receiving order, a specified receiving order, an equipment lending system, a manpower system and a cargo system. A construction company(2) means that several construction companies connect to a homepage of the server(1). A materials company(6) means that several companies connect to the homepage and deal with another companies in construction materials. An equipment company(9) directly receives a request for lending equipment. A homepage direct management(12) directly manages a homepage of each company in the server(1).
Patent KR-20020035726-A (KR)
Title: Image compression and expansion method based on jpeg using wavelet transform
Inventor: KWON O EON
IPC: H04N1/41
Filed: 2000-11-08
Abstract: PURPOSE: A method of compressing and decompressing a still image is provided to maximize the smoothness of the pixel values of input image and to compress or decompress chrominance information with high fidelity by performing wavelet transformation in advance. CONSTITUTION: An input video signal is Daubechies wavelet-transformed(302). The low frequency component of the transformed video signal is JPEG-encoded(303), and the high frequency component of the transformed video signal is compressed by Huffman-coding method(304). Then the low-frequency component of the compressed video signal is JPEG-decoded(305) and the high-frequency component of the signal is Huffman-decoded. The decoded video signal is inverse-wavelet transformed to restore video(306).
Patent KR-20010051550-A (KR)
Inventor: TAIRA TSUTOMU
IPC: C02F1/78
Filed: 2000-11-09
Abstract: PURPOSE: To provide a method for treating organic waste water capable of reducing the amount of ozone to be consumed by stopping the oxidation of the organic matter having a benzene ring up to oxalic acid and a treating device for the same. CONSTITUTION: The treating device for the organic waste water has a first reaction section 2, a second reaction 1 section 4, a third reaction section 5, a deposit detection section 7, a solid-liquid separation section 8 and a biological treatment section 11. The organic waste water 1 containing phenol is introduced in this order therein. In the first reaction section 2, the waste water is oxidized by the ozone supplied from an ozone supply section 3 connected thereto to form the oxalic acid from the phenol. In the second reaction section 4, ammonia and calcium hydroxide are added to the waste water and the oxalic acid in the organic waste water 1 is deposited in the form of calcium oxalate. Further, in the third reaction section 5, the oxalic acid and ammonium ions unreacted in the second reaction section react to deposit amide oxalate. In the solid-liquid separation section 8, the deposit is separated and is released through the biological treatment section 11.
Patent KR-20010051602-A (KR)
Title: Disk cartridge device
Inventor: KUSUI YOSHIO
IPC: G11B17/04
Filed: 2000-11-10
Abstract: PURPOSE: To obtain a disk cartridge device, which can load disk cartridges of different size selectively in one recording and reproducing device, while determining respective height positions. CONSTITUTION: This device has 1st and 2nd disk cartridges 1 and 12 which store disks having different diameters and differ in size, a couple of positioning pins 28 and 29 having pedestals 26 and 27 for height determination, where the 1st disk cartridge 1 is positioned on a cassette container 23 in which the 1st or 2nd disk cartridge 1 or 12, is loaded selectively, and a couple of positioning pins 32 and 33 having pedestals 30 and 31 for height determination, where the 2nd cartridge 12 is positioned. Stepped escape holes 40 and 41 are provided, which move away from the positioning pins 32 and 33 for positioning the 2nd disk cartridge 12 on the reverse surface of the 1st disk cartridge 1 in a loading state, where positioning holes 9 and 10 of the 1st disk cartridge 1 are positioned at the positioning pins 28 and 29 to complete height determination.
Patent KR-20010008216-A (KR)
Inventor: JUNG MAN GU
IPC: G08C19/00
Filed: 2000-11-16
Abstract: PURPOSE: A method for measuring the use amount of the electric power according to reduced fare hours and a watt meter for short-distance radio checking is provided to measure the use amount of the electric power of all time zones with a watt meter by separating and storing the amount of the used electric power according to the time zone. CONSTITUTION: A method for measuring the use amount of the used electric power according to reduced fare hours and a watt meter(102) for short-distance radio checking includes a communication procedure diagram of a handy terminal(110) and a watt meter(102). If the demand for time setting is conveyed by using a handy terminal(110), the watt meter(102) interprets the format after receiving the sent data and sets up time. The response for end of the time setting is conveyed to the handy terminal(110). If time setting finishes, setting of reduced time zone is demanded and the watt meter(102) sets up the reduced time zone and supplies the response for end of receiving to the handy terminal(110). If setting finishes, the watt meter(102) counts the amount of the used electric power and separates it according to the time zone and stores it in the EEP ROM. If checking by using the handy terminal(110) is demanded, the watt meter(102) sends the amount of the used electric power and time to the handy terminal(110). When the handy terminal(110) received the checking data normally, the response for end of the data receiving is conveyed to the watt meter(102).
Patent KR-20020038239-A (KR)
Title: Device for transmitting data between dslam and remote dslam
Inventor: KI GYEONG JIN
IPC: H04L29/08
Filed: 2000-11-17
Abstract: PURPOSE: An apparatus for transmitting data between a DSLAM(Digital Subscriber Line Access Multiplexing) and a remote DSLAM is provided to offer a communication service of high-speed ATM(Asynchronous Transfer Mode) packet data by performing an ATM packet data communication having a transmission speed of an optical cable level through a telephone communication using an SDSL(Symmetric Digital Subscriber Line) and an IMA(Inverse Multiplexer for ATM). CONSTITUTION: A DSLAM(100) has the first maintenance device(110), a plurality of the first SDSL link matching device(120), a network matching device(130), and a plurality of the first ADSL(Asymmetric Digital Subscriber Line) subscriber matching devices(140). A remote DSLAM(200) comprises the second maintenance device(210), the second SDSL link matching device(220), and a plurality of the second subscriber matching devices(230). A plurality of the first SDSL link matching devices(120) of the DSLAM(100) and the second SDSL link matching device(220) of the remote DSLAM(200) connect by a telephone line for transmitting and receiving ATM packet data through a telephone communication.
Patent KR-20020038428-A (KR)
Inventor: LEE HYO JIN
IPC: H01Q3/26
Filed: 2000-11-17
Abstract: PURPOSE: An active array antenna using an airstrip is provided to miniaturize communication equipment by mounting a duplexer, a low noise amplifier, and a high output amplifier to each antenna radiation element. CONSTITUTION: A plurality of high output amplifiers are mounted to each transmitting terminal in order to minimize gains and outputs of each antenna radiation elements. A receiver(42) synthesizes signals received by each antenna radiation elements. A low noise amplifier(5) amplifies the signals from the receiver(42) in order to increase a receiving sensitivity. A connector supplies RF and DC power supplies through a feed line. RF cables are installed between input and output of a low output amplifier. RF cables is connected to a radiation element through the RF cables and the duplexer.
Patent KR-20020039424-A (KR)
Title: High Performance Space-Time Array Receive System and Method Using Fading Rate Indicator
Inventor: KYUNG MUN GEON
IPC: H04B7/216
Filed: 2000-11-21
Abstract: PURPOSE: A system for receiving an ultra-high performance space-time array of a fading adaptive type and a method thereof are provided to select a correlation length of a pilot channel in adaptable and perform a correlation using a variation amount of a fading channel obtained through a doppler frequency estimation and a data rate of a receiving signal when a pilot channel is correlated for compensating a distortion phenomenon by a fading channel in a reverse direction link of a CDMA wireless communication system applying an array antenna. CONSTITUTION: A plurality of digital beam forming networks(120) perform a space filtering by multiplying a receiving signal which is received from a plurality of antennas and converted into a digital signal by a weight value vector according to each multiple path signal, and forms a beam. A plurality of demodulators(160) demodulate output signals of a plurality of digital beam forming networks. A pilot channel correlator estimates a fading channel using a pilot signal in the demodulators(160). A doppler frequency estimation unit(150) receives an output of the pilot channel correlator and estimates a doppler frequency of the fading channel. A microprocessor(180) supplies data rate information of a received signal and controls a signal flow. A correlation length selection unit(140) receives a doppler frequency estimation value estimated from the doppler frequency estimation unit(150) and a data rate of a received signal and decides a correlation length of the pilot channel correlator. A reference signal generator(170) receives outputs of a plurality of fingers and generates a reference signal. A plurality of weight value vector estimators receive an output of the reference signal generator(170) and the receiving signal and supplies the digital beam forming network(120).