baber/WOPTO huggingface dataset:
Patent KR-20000008780-A (KR)
Title: Gamma correction device of digital video data and gamma correction method
Inventor: LEE HYO SEUNG
IPC: H04N5/202
Filed: 1998-07-15
Abstract: PURPOSE: A gamma correction device of a digital video data improves a round-off error in a multiplier by using a floating multiplier having a simple structure, makes the offset data being input to an adder always have a positive value, and enhances a signal processing accuracy when correcting a gamma and de-gamma of LCD. CONSTITUTION: A gamma correction device of a digital video signal data includes a coder(130) for receiving a digital video signal data, and generating a predetermined code signal corresponding to a period involving a level of the digital video signal data. A memory(140) stores each period amplification coefficient N, each period coefficient data amplified as N times of a slope of approximate straight line of each period, and offset data of the approximate straight line of each period into a predetermined position. According to the code signal generated from the coder, the memory(140) generates an amplification coefficient N of the period involving a level of the digital video signal data, a coefficient data and offset data. A multiplier(150) multiplies the digital video signal data by the coefficient data from the memory, and generates the result. A divider(180) divides the output result of the multiplier by the amplification coefficient N from the memory, and generates the result. Adder(160) adds the output result of the divider to the offset data from the memory, and generates a gamma-corrected digital video signal data. Thereby, a round-off error is reduced in the multiplier, thereby increasing the accuracy of the gamma correction signal processing.
Patent KR-20000009075-A (KR)
Title: Decoder function based video decoding system and method thereof
Inventor: PARK SANG GYU
IPC: H04N19/17
Filed: 1998-07-21
Abstract: PURPOSE: A decoder function based video decoding system that can selectively decode a picture according to the importance of a video object when the function of a decoder is not sufficient for decoding all the coded images. CONSTITUTION: The decoder function based video decoding system includes an object discriminating decoding determining part (1) determining if an object discriminating decoding is necessary; an object priority determining part (2) automatically determining the object priority by a user's selection or an analysis of object characteristics; a decoding picture order determining part (3) determining pictures to be decoded considering the object priority; an object decoding part (4) decoding pictures in the order determined by the decoding picture order determining part (3); and an object picture data combination and output part (5) combining object decoded picture data from the object decoding part (4) and outputting it.
Patent KR-19990023356-A (KR)
Title: 화장품용 광 차단 조성물
IPC: A61K8/30
Filed: 1998-08-04
Abstract: 본 발명은 하나 이상의 화학식 1의 화합물을 포함하는, 자외선 복사에 대해 인간의 피부 또는 모발을 보호하기 위한 화장품용 광 차단 조성물에 관한 것이다: 
     
       
         
       
     
     상기 식에서, 
     R 1 은 C 1-8 직쇄 또는 분지된 알킬 쇄를 나타내고, 
     R 2 및 R 3 은 각각 독립적으로 C 1-8 직쇄 또는 분지된 알킬 쇄를 나타낸다.
Patent KR-19990023435-A (KR)
IPC: H01R13/18
Filed: 1998-08-07
Abstract: Plug-in connector sleeve (1) having a plug-in region (2) and a conductor connection region (3), the plug-in region having a box-shaped housing (4) with two side walls (5, 6), a floor (7) and a roof (8), at least one contact segment (9 to 13) projecting into the housing in the roof region and in the floor region, in each case. In the direction of insertion, the plug-in connector sleeve firstly has on the first side wall (5) a contact segment (9) in the roof region, which projects inwards with its free end (13), and a contact segment (11) in the floor region, which projects inwards with its free end (14) from the second wall (6), and as, further in the direction of insertion, on the first side wall (5) a contact segment (10) projecting inwards with its free end (15) in the floor region, and has a contact segment (12) in the roof region which projects inwards with its free end (16) from the second side wall (6). <IMAGE>
Patent KR-20000015149-A (KR)
Title: Bake apparatus
Inventor: LEE KYUNG-SOO
IPC: H01L21/00
Filed: 1998-08-27
Abstract: PURPOSE: A bake apparatus is provided to reduce a time required when dropping a temperature from a high temperature to the normal temperature in the bake apparatus. CONSTITUTION: A bake apparatus hardening a photosensitive film in a procedure for patterning a thin film formed on the surface of a wafer includes a control means(20). The control means forms a hollowness part(10) which is installed the inside of the bake apparatus(4) and has an air inlet(12) and an air outlet(14) which are in the direction of the inside of a heating plate(8) heating a wafer(2). The control means installs an on/off valve(18) and shutter(16) on the air inlet and the air outlet, respectively. The control means is connected to a cooling means(22), which is connected to the air inlet, and the on/off valve. Simultaneously, the control means is connected to the cooling means to control an operation of those.
Patent KR-20000015249-A (KR)
Title: Cleansing method for filter film of filter and cleansing system using it
Inventor: KIM SEUNG CHUL
IPC: B01D65/02
Filed: 1998-08-27
Abstract: PURPOSE: A cleansing method for a filter and a cleansing system using it are provided to maximize the filtration effect by making the filter film maintain the permeability of an early stage and to perform the filtration process continuously without stoppage of the operation of the filter. CONSTITUTION: The cleansing system comprises: a filter film(83) formed inside a body(91); an inlet pipe(94) to flow fluid of an undiluted solution into one end part of a filtration part(80); a condensed solution outlet(92) formed on the other end of the filtration part to keep the normal flowing of the undiluted solution; a filtered solution outlet(93) formed on one side of the body to discharge the solution filtered by passing through the filter film of the filtration part; a jetting device(30) installed on one end of the inlet pipe to jet the cleansing agent; a valve(20) converted in the state the filter film is closed after filtration process; and a steam supply pipe(10) to flow the high temperature steam to the undiluted solution.
Patent KR-20000019738-A (KR)
Title: Radio transceiver within radio interface unit of wireless local loop system
Inventor: BAE JONG JIN
IPC: H04B1/38
Filed: 1998-09-15
Abstract: PURPOSE: A radio transceiver within a radio interface unit of a wireless local loop is provided to transmit and receive an RF signal at 2GHz more frequency band by using a radio interface between a base station and a radio interface unit. CONSTITUTION: A radio transceiver within a radio interface unit of a wireless local loop comprises an antenna duplexer(10), a radio receiver(20), a radio transmitter(40), and a local signal generator(50). The antenna duplexer divides signals into a transmission signal and a reception signal to perform a radio transmission and reception to a base station. The radio receiver converts an RF signal from the base station to an IF signal. The radio transmitter converts an RF signal from a subscriber to an IF signal and transmits the IF signal through the antenna duplexer to the base station. The local signal generator generates each local signal necessary for modulating and demodulating the IF and RF signals.
Patent KR-20000020774-A (KR)
Title: Method for manufacturing semiconductor device
Inventor: PARK JU ON
IPC: H01L21/28
Filed: 1998-09-23
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to maintain the wafer alignment key or Vernier mark at the scriber line of a wafer after the chemical mechanical polishing of an intermediate insulating layer. CONSTITUTION: A manufacturing method comprises the steps of: forming a first alignment key or overlay vernier at a scriber line of a semiconductor substrate; depositing an intermediate insulating layer on the entire surface of the semiconductor substrate; planarizing the intermediate insulating layer; patterning the planarized intermediate insulating layer using a first scribe line mask having a first wafer alignment key or an overlay vernier to form a second wafer alignment key or an overlay vernier of intermediate insulating layer pattern; patterning the remaining intermediate insulating layer using a second scribe line mask for protecting the second wafer alignment key and the overlay vernier to expose the first wafer alignment key or overlay vernier; depositing a lower conductive layer and ferroelectricslayer; and patterning the deposited lower conductive layer and the ferroelectricslayer. Thus, although the lower conductive layer and the ferroelectricslayer have a relatively low light transmittance, the wafer alignment or overlay measurement are possible, thereby enhancing the process yield and the reliability.
Patent KR-20000020953-A (KR)
Title: Path memory unit of viterbi decoder
Inventor: JE YOUNG HO
IPC: H04B1/40
Filed: 1998-09-24
Abstract: PURPOSE: A path memory unit of Viterbi decoder is provided to reduce a power consumption and a chip size by utilizing a RAM as a path memory. CONSTITUTION: A path memory unit of Viterbi decoder comprises a first selector(11), a second selector(12), a trace back calculator(14), a data converter(15), a memory controller, and a path memory(10). The first selector selects one of outputs from the path memory and generates a path selection signal. The second selector selects a minimum state number from an addition comparison selection unit when a start clock is an active state and selects an output from the trace back calculator when the start clock is not the active state. The trace back calculator combines logically the outputs from the first and the second selectors. The data converter decodes the output from the trace back calculator. The memory controller outputs an address signal and a write/read control signal. The path memory stores the path selection signal to a corresponding address and reads and outputs the stored data.
Patent KR-20000021403-A (KR)
Title: Structure having an electrostatic discharge circuit of a semiconductor device and a method of manufacturing the same
Inventor: LEE TAE BOK
IPC: H01L27/02
Filed: 1998-09-29
Abstract: PURPOSE: An electrostatic discharge(EDS) circuit of a semiconductor device is provided to minimize damage to a junction diode connected to a pad. CONSTITUTION: An electrostatic discharge(EDS) circuit of a high voltage semiconductor device including a ground pad, a power pad, a plurality of electrical signal pads and an internal circuit comprises: at least one metal oxide semiconductor(MOS) transistor of which a source region and a drain region are connected to the electrical signal pad; and a Zener diode connected to the source region of the MOS transistor.
Patent KR-20000025554-A (KR)
Title: Coherent relay device using frequency synthesizer
Inventor: KOREA ADVANCED INSTITUTE OF SC
IPC: H04B7/15
Filed: 1998-10-13
Abstract: PURPOSE: A coherent relay device using a frequency synthesizer is provided to transmit a high frequency signal having a constant frequency ratio on a demodulated carrier after demodulating a receipt signal by demodulating a carrier by tracking the received signal by using a frequency synthesizer consisting of a frequency divider and a phase locked loop which can be integrated and used even at a variety of transmit/receipt frequency ratio. CONSTITUTION: A coherent relay device includes a plurality of amplifiers(201,203,206,216), a voltage controlled oscillator(210), a plurality of frequency multipliers(211,212,213), a plurality of frequency converters(202,205) and a plurality of band pass filters(204,207,215). The coherent relay device outputs a transmittance signal of a frequency proportional to the frequency of a receipt signal. A plurality of the amplifier amplify with multiple stages the receipt signal. The voltage controlled oscillator oscillates the transmittance signal of the frequency corresponding to an input signal. A plurality of frequency multipliers multiply the output signal of the voltage controlled oscillator. A plurality of the frequency converters convert with multiple stages the frequency of the receipt signal by receiving an amplified signal by stage and the output signal of the frequency multipliers. A plurality of the band pass filters output only a signal of a predetermined frequency band by filtering a signal converted on the frequency with stages. Each frequency multiplier includes a first dividing unit dividing the input signal and a voltage controlled oscillation unit oscillating a voltage signal of a frequency corresponding to the divided input signal.
Patent KR-20000026737-A (KR)
Title: Method of test driving of gas boiler opened to atmosphere
Inventor: KANG BYEONG HUI
IPC: F24H9/20
Filed: 1998-10-22
Abstract: PURPOSE: A test driving method of a gas boiler is provided to discharge air in a pipe by supplying water automatically if the water level is lowered by sensing the change of water level of a water level controlling tank when the air contained in the pipe is discharged according to the operation of a circulation pump. CONSTITUTION: A test driving method of a gas boiler is operated by the steps of: operating a circulation pump after operating a test driving timer; sensing the lowered water level in a water level controlling tank while the circulation pump is operated; stopping the circulation pump, stopping the test driving if the test driving time is passed by judging if the whole test driving time is passed if the lowered water level is not sensed in the water level controlling tank and operating the circulation pump continuously if the time is not passed; stopping the circulation pump, displaying the disorder and performing water supply if the lowered water level is occurred in the water level controlling tank; and continuously performing water supply if the water level approaches to the normal water level by performing water supply and canceling the display of the disorder and operating the circulation pump if the water level approaches to normal water level.
Patent KR-20000032200-A (KR)
Title: Inspection circuit of series communication system
Inventor: KANG SEONG HYON
IPC: H04B17/00
Filed: 1998-11-13
Abstract: PURPOSE: An inspection circuit of series communication system is provided to inspect within the inside without extra external device by previously connecting data transmit terminal with data receive terminal, thereby easily inspecting the system and reducing the time for inspecting the system. CONSTITUTION: A transmission data converter converts the transmitted data output form data transmission terminal to an electrical state suitable to an arbitrary series communication interface method. A reception data converter converts the received data input from outside to an electrical state suitable to an arbitrary series communication interface method. A first switch switches not to input the output of the reception data converter to data receive terminal in case of communication and to input the output of the reception data converter to data receive terminal in case of inspection. A second switches to input outside data to data receive terminal in case of communication and not to input outside data to data receive terminal in case of inspection.
Patent KR-20000032863-A (KR)
Title: Light scanning system of printer
Inventor: KWACK HEE KUK
IPC: B41J2/435
Filed: 1998-11-18
Abstract: PURPOSE: A light scanning system of printer is provided to improve the printing quality by obtaining light emitting data for pixels without performing any additional operation for color registration after substitution of light scanner. CONSTITUTION: A light scanning system of printer includes photosensitive media(74) in circulation movement, at least one light scanner(30,40,50,60) for scanning light in the main light scanning direction crossing the advancing direction of the photosensitive medium at a predetermined angle, and light scanning controller(90) for controlling the driving of the light scanner, wherein the photosensitive medium has a slit(75) formed with a predetermined distance crossing the advancing direction of the photosensitive medium alternately with a floodlighting part(75a) and a shading part(75b) thereof, light receiving parts(81-84) are provided oppositely to the light scanner with relation to the photosensitive medium for receiving the light emitted from the light scanner and passed through the floodlighting part of the slit to output a corresponding electric signal to the light scanning controller, and the light scanning controller obtains a data of light emitting time for the light arrival at a predetermined pixel position from the electric signal input time to control the light emitting timing of the light scanner corresponding to image information according to the data.
Patent KR-19990045438-A (KR)
Title: 평면표시장치
IPC: G02F1/1335
Filed: 1998-11-17
Abstract: 본 발명은 평면표시장치에 관한 것으로서, 수지 프레임(2)과 걸어 맞추기 위한 역ㄷ자형의 걸어 맞추는 부분(11)을 가장자리부에 갖는 금속판(1)을 사용하고 금속판(1)이 수지 프레임(2)을 보강함과 동시에, 구동회로기판(4)으로부터의 전자 소음을 차폐하여, 휴대용 등의 평면표시장치에서 소형화, 박형화, 경량화를 도모하고 표시패널(5)을 보호하는 프레임 구조의 강도 및 신뢰성을 충분히 높게 유지할 수 있고 또한 구동회로기판(4)으로부터 표시 패널(5)측으로의 전자소음을 확실하게 방지할 수 있는 것을 제공하는 것을 특징으로 한다.
Patent KR-20000034713-A (KR)
Title: Water level detector checking trouble of input level detecting signal
Inventor: KIM GI SU
IPC: G01F23/24
Filed: 1998-11-30
Abstract: PURPOSE: A water level detector is provided to prevent an abnormal movement such as grounding caused by heating and damaging the clothing of a wire harness connected to an electrode bar. CONSTITUTION: A water level detector grounds a tool case to earth potential and detects a water level by using a pair of electrode bars(9a,9b) and a microcomputer(1). Signal amplifiers(4,5) amplify each signal for detecting a high water level and a low water level. The water level detector contains switching circuits(6,7), diodes(D1.D2), a level decider(3), a signal comparing amplifier(2) and a trouble checking circuit. The switching circuits switch the amplified signals and the diodes are connected to the head end of resistances(R5,R6). The level decider decides if a signal is for the high water level or the low water level. The signal comparing amplifier inputs voltage descent amount to the microcomputer after comparing and amplifying the amount. The trouble checker checks trouble by being turned on and off depending on the voltage descent amount.
Patent KR-20000028534-A (KR)
Title: Method for forming contact of semiconductor device
Inventor: LEE GANG YUN
IPC: H01L21/768
Filed: 1998-12-04
Abstract: PURPOSE: A method is provided to minimize the damage of a semiconductor substrate when forming a gate spacer and a self-aligned contact. CONSTITUTION: At least more than two gate lines(108) are formed on a semiconductor substrate(100), and first and second insulating films are deposited on the front face of the semiconductor substrate including the gate lines in order for having mutual etch selectivity. Then, an interlayer dielectric(120) is deposited on the second insulating film. A self-aligned contact opening is formed by partially etching the interlayer dielectric to expose the upper surface of the second insulating film in a region to form the self-aligned contact between the gate lines. And, gate spacers(112a-112c) are formed by anisotropic etching of the second insulating film to expose the upper surface of the first insulating film on the lower portion of the contact opening. The first insulating film is etched to expose the upper surface of the semiconductor substrate between the gate spacers on the lower portion of the contact opening. Then, the self-aligned contact is formed by filling the contact opening with a conductive film for being electrically connected with the semiconductor substrate. Thus, the contact of the semiconductor device is completed.
Patent KR-20000039335-A (KR)
Title: Emergency stopping device of an elevator
Inventor: JIN HYUN HO
IPC: B66B5/16
Filed: 1998-12-12
Abstract: PURPOSE: An emergency stopping device of an elevator is provided to reduce the manufacturing cost of the elevator by simplifying the structure of the elevator. CONSTITUTION: An upper plate member(40) has an opening into which a guide rail(1) is inserted, and is engaged with a car frame(11) of an elevator. A wedge member(41) is engaged with the upper plate member(40). A braking device(50) has an inclined surface, and is inserted into the wedge member(41). A plurality of sliding rollers(44) are inserted between the inclined surface of the braking device(50) and the inclined surface of the wedge member(41). A lower plate member(45) has an opening into which the guide rail(1) is inserted, and is engaged with the upper plate member(40).
Patent KR-20000039448-A (KR)
Title: Method for decarbon-annealing cold rolled steel for use of shadow mask
Inventor: HWANG SUN YEONG
IPC: C21D8/02
Filed: 1998-12-14
Abstract: PURPOSE: A method for decarbon-annealing a cold rolled steel sheet for use of a shadow mask is provided to effectively operate a decarbonizing annealing by adjusting hydrogen density, a dew point temperature, and an annealing temperature. CONSTITUTION: A cold rolled steel sheet contains carbon for 0.001-0.003wt% of entire weight. The cold rolled steel sheet is low temperature annealed at a temperature of under 750°C while adjusting a dew point temperature for -20°C in a nitrogen and hydrogen atmosphere. Then, the steel sheet is high temperature annealed at the temperature of 750-800°C while adjusting the dew point temperature for 30-50°C in the nitrogen and hydrogen atmosphere. Herein, the hydrogen density is 3-10% for the low temperature annealing and 15-20% for the high temperature annealing.
Patent KR-20000041104-A (KR)
Title: Method for processing changing-period forward and reverse hard hand off
Inventor: BYUN YOUNG SU
IPC: H04B7/26
Filed: 1998-12-21
Abstract: PURPOSE: A method for processing a changing-period forward and reverse hard hand off is provided to realize a good calling quality regardless of a movement of a mobile subscriber. CONSTITUTION: In a method for processing a changing-period forward and reverse hard hand off, if a forward hand off request message is applied, a time slot is stored in a first virtual time slot(VTS0) and a voice channel is stored in a second virtual time slot(VTS1)(301). A new time slot is allotted on an access switching subsystem-transceiver(ASS-T) of a serving side(303), and one of valid time slots is allotted(305). A new time slot is allotted on an ASS-wireless(W) of a target side corresponding to a cell region of a shifting location of a mobile subscriber(307), and a space switch(S_SW1) is connected(309). After allotting a voice channel by use of a link channel of the ASS_T of a target side, the allotted voice channel is connected to the time slot of the allotted ASS_T(311). After allotting a voice channel on the ASS_W of a target side, the allotted voice channel is connected to the time slot of the allotted ASS_T(313). The voice channel of the ASS_T of the target side is connected to the space switch(S_SW1)(315), and a voice channel of the ASS_W of the target side is connected to the space switch(317). A response signal to forward hand off request is sent(319), and a switch interconnection according to a forward hand off is request.