baber/WOPTO huggingface dataset:
Patent KR-19990079250-A (KR)
Title: 복합 다중화 기반 홀로그래픽 저장 장치
IPC: G03H1/18
Filed: 1998-04-03
Abstract: 개시된 본 발명은 홀로그래픽 메모리 시스템에 있어서, 각다중화와 파장 다중화를 결합한 복합 다중화 방식에 입각하여 효율적으로 극초대용량의 정보를 광굴절 기록 매질에 저장할 수 있도록 하는 복합 다중화 기반 홀로그래픽 저장 장치에 관한 것이다. 
     본 발명에서 데이터의 기록은 파장가변레이져(tunable laser)의 물체파와 기준파를 이용하여 광굴절 기록 매질에 기준파의 각도를 변화시켜가며 데이터를 기록하는 방식으로 행해진다. 동시에 기준파의 각도마다 기준파 및 물체파의 각도를 일정하게 유지하며, 파장을 변화시켜 파장마다 노출을 통해 다른 데이터를 기록하는 방법으로, 저장할 수 있는 데이터의 량을 증가시키게 된다. 데이터의 재생시 기록에 사용된 기준파는 차단되며, 홀로그램에 저장된 기준파 및 물체파의 각도와 파장에 따라 독립적으로 데이터가 재생되게 된다. 
     본 발명에 따르면, 홀로그램의 특성과 통신의 다중화 방식을 이용하므로 대용량의 정보를 저장할 수 있고, 실시간으로 엑세스를 할 수 있는 초고속 멀티미디어 통신에 알맞은 저장 시스템을 구현할 수 있는 이점이 있다.
Patent KR-19980081212-A (KR)
Title: 통내 분사엔진의 피스톤
IPC: F02F3/26
Filed: 1998-04-09
Abstract: 본 발명은, 내연기관의 실린더 헤드(13)의 하면, 실린더(14)의 내벽 및 피스톤(31)의 꼭데기면에 의해 획정된 연소실(16)과, 상기 내연기관의 흡기포트(17) 근방에 배설되어 상기 연소실(16)내에 직접 연료를 분사하는 분사밸브(21)와, 상기 분사밸브(21)보다도 상기 연소실(16)의 중심측에 설치된 점화플러그(22)와, 상기 분사밸브(21) 및 점화 플러그(22)에 거의 대응하는 상기 피스톤(31)의 꼭데기면에 형성된 오목부(32)를 구비한 통내 분사 엔진에 있어서, 상기 오목부(32)는, 상기 오목부(32)에서 상기 점화 플러그(22)의 아랫측에 거의 대응하는 위치와 상기 분사밸브(21)의 아랙측에 거의 대응하는 위치를 연결하는 최단곡선이 복선의 곡률을 갖는 곡면(32a, 32b)에 의해 형성되며, 또한, 상기 오목부(32)에서 상기 점화 플러그(22)의 아래측에 거의 대응하는 곡면(32b)의 곡률이 상기 분사밸브의 아래측에 거의 대응하는 곡면(32a)의 곡률보다도 크게설정되며, 그리고, 점화 플러그측의 곡면(32b)과 분사밸브측의 곡면(32a)이 접속부(32c)에 의해 부드럽게 연속되는 것을 특징으로 한다. 이것에 의해, 분사밸브로부터 연소실내로 분사된 연료는 연료는 흡기포트로부터 유입된 공기에 의해 피스톤 꼭데기면의 오목부에 이르며, 여기에서 복수의 곡률을 갖는 곡면으로 형성된 오목부 표면에 의해 안내되어 선회류로 되어 점화 플러그에 유동하는 것으로서, 연소실내에서 정확하게 연료의 흐름을 확보하게 되며, 연소실 내에서의 확실한 착화, 연소를 실현할 수 있음과 함께, 적정한 오목부 용적을 확보하는 것으로서 층상 연소를 가능하게 하여 연소효율의 향상을 도모할 수 있다. 또한, 곡률이 작은 분사밸브측의 오목부 곡면에 의해 충분한 오목부 용적을 확보할 수 있는 한편, 곡률이 커다란 점화 플러그측의 오목부 곡면에 의해 연료 분무를 최적으로 모아서 점화 플러그에 확실하게 유동시킬 수 있어서, 층상 연소를 가능하게 할 수 있다.
Patent KR-20000002614-A (KR)
Title: Sputtering device
Inventor: YU JI SANG
IPC: H01L21/203
Filed: 1998-06-22
Abstract: PURPOSE: A sputtering device is provided to lengthen a life span and to improve the efficiency of an equipment by increasing an evaporation speed. CONSTITUTION: The sputtering device comprises: a pair of magnets (22)(24) combined to possibly revolve at a center inside a gun; a driving motor(30) for generating a driving force for revolving the magnet; a pair of support bars(42)(44) combined for supporting the magnet on the vertical hem of the shaft of the driving motor; a target attached with a magnetic field formed along with the rotation of the magnet and a material for sputtering by an action of supplying gas.
Patent KR-20000004504-A (KR)
Title: Input buffer of semiconductor devices
Inventor: KIM YONG GI
IPC: H01L27/04
Filed: 1998-06-30
Abstract: PURPOSE: An input buffer of memory devices is provided to improve a margin of set-up time and hold time by further comprising a clock control part in a resistor for storing input signals. CONSTITUTION: The input buffer comprises a first buffer part(10) for converting an outer control signal to a CMOS logic signal; a delay circuit(20) for controlling a transmittance time from the first buffer part(10) in order to achieve a set-up and a hold times of inner clock; a second buffer part(30) for transmitting an inner input signal controlled the set-up and hole times through the delay circuit(20) to a resistor(40); and a clock control part(50) for generating a second inner clock(i2clk) by using output signals(out, outb) identified a signal storing inputted to the resistor(40) and a first inner clock(i1clk).
Patent KR-20000007202-A (KR)
Title: Clock supply device of wireless local loop system
Inventor: KIM DUK SU
IPC: H03L7/00
Filed: 1998-07-01
Abstract: PURPOSE: A clock supply device is provided to improve the efficiency of a WLL(wireless local loop) system by preventing a slip generation by the disaccord of a clock frequency between systems. CONSTITUTION: The clock supply device of the WLL system comprises: a clock receiving unit(10) to receive a standard clock for a HDB3 E1 from a CIVA of a DOTS(Digital Office Timing Supplier) or of a switching point and a ELIA2 of a radio port controller; a clock generating unit(20) to generate a system clock to synchronize in the standard clock for synchronizing; a clock dividing unit(30) to offer the system clock generated from the clock generating unit(20) by dividing corresponding to the clock needed by each block in the radio port controller or inside the radio port; a power unit(40) to supply power needed to each block inside the clock receiving unit(10), the clock generating unit(20), and a clock dividing unit(30).
Patent KR-19990029238-A (KR)
Title: 석영글래스 및 그 제조방법
IPC: C01B33/107
Filed: 1998-07-01
Abstract: 내자외선 특성 및 굴절율의 균질성의 양 특성이 뛰어난 석영 글래스의 제조방법을 제공한다. 
     염소(Cl)을 실질적으로 포함하지 않는 석영 글래스의 제조방법에 있어서, 석영 글래스제 버너로부터 사불화규소(SiF 4 ) 가스와, 산소가스와, 수소가스를 각각 분출시키는 공정과 사불화규소(SiF 4 ) 가스와, 산소가스와, 수소가스의 반응생성물인 물을 반응시켜 석영 글래스 미립자를 발생시키는 공정과, 석영 글래스 미립자를 타겟상에 퇴적시키는 공정과, 타겟상에 퇴적된 석영 글래스 미립자를, 용융·글래스화하여 석영 글래스로 하는 공정을 포함하고, 또한 사불화규소(SiF 4 ) 가스의 분출속도를 9 내지 20slm/cm 2 의 범위내의 값으로 한다.
Patent KR-20000007752-A (KR)
Title: Dna immune vaccination to hepatitis c virus(hcv)
Inventor: JO JAE HO
IPC: C12N15/63
Filed: 1998-07-07
Abstract: PURPOSE: A DNA plasmid of HCV is provided which induces optimal humoral immunity and cellular immunity to E1(Envelope1), E2(Envelope2) and NS(Nonstructural) protein of Hepatitis C virus(HCV). CONSTITUTION: In an attempt to induce optimal immunity to E1, E2 and NS protein of HCV, E1 and E2 gene are transformed to be expressed as the type of E1t and E2t proteins through removing carboxyl terminal and NS protein contains NS3, NS4A, NS4B, NS5A and NS5B gene of HCV genome to be expressed. Several immunity vectors are prepared to use GMCSF(Granulocyte Macrophage Colony Stimulating Factor) as an auxiliary factor which is helpful in gaining more optimal effect.
Patent KR-20000008542-A (KR)
Title: Power metal oxide semiconductor field effect transistor
Inventor: HONG NEUNG PYO
IPC: H01L29/78
Filed: 1998-07-14
Abstract: PURPOSE: The power semiconductor device is provided to reduce sheet resistance of source by reducing the length of a current path for collecting drain current to source. CONSTITUTION: In the power semiconductor device, a source is arranged on the surface of a substrate, is comprising of a bar-shaped center part crossing a circle-shaped outer part and two bar-shaped current path parts crossing the outer part at the center part. A second conducting body is formed in shape of wrapping the source. A source electrode is connected with the source through a source contact part formed on the center part of the source. A gate is formed in shape of wrapping the outer part of the source. A drain is arranged in lower part of the substrate.
Patent KR-20000010039-A (KR)
Title: Chromium plating method of metal products
Inventor: SKECHIROBA SOPHIA
IPC: C25D3/04
Filed: 1998-07-29
Abstract: PURPOSE: A chromium plating method of metal products is provided which can make the plated surface of good quality at a lower cost and does not generate harmful gas and liquid or solid waste. CONSTITUTION: The process comprises a manufacturing stage of a coating mixture consisting of 10-50% aluminum powder, 10-50% chrome oxide, 1-70% aluminum oxide, 1-20% ammonium chloride, and 1-20% ammonium fluoride, an arranging stage of parts to plate and the mixture in a plating bath in regular succession, a heating stage of the plating bath in an electric furnace at 980-1,170°C for a fixed time, and a postprocess stage of cooling to 600°C, taking out the bath from the furnace, cooling to room temperature, washing, and drying. Ammonium chloride and ammonium fluoride are dried at below 100°C for 1 hr, chrome oxide and aluminum oxide are dried at 200-250°C for 1.5-2 hr before mixing.
Patent KR-20000013221-A (KR)
Title: Radio link protocol embodying method for effective data transmission
Inventor: CHANG HOON
IPC: H04L12/56
Filed: 1998-08-04
Abstract: PURPOSE: A radio link protocol embodying method for effective data transmission is used for an effective transmission of a data in a wireless environment. CONSTITUTION: A radio link protocol embodying method is used in a data transmission of a mobile telecommunication. The radio link protocol embodying method constructs a segment tree of calculating minimum segments to support various transmission rates, and engages serial number by the number of leaves. If there is data to be transmitted, a frame proper to a preset data transmission rate is made, the engaged serial number is attached to the frame and is then transmitted to a receiving side.
Patent KR-20000013620-A (KR)
Title: Auto display device and method of on screen display for abnormal monitor
Inventor: SEOK SANG MUN
IPC: G09G5/32
Filed: 1998-08-11
Abstract: PURPOSE: An auto display device and method of on screen display(OSD) for abnormal monitor is provided to induce an adjustment of screen and safely use a monitor. CONSTITUTION: The auto display device and method of on screen display for abnormal monitor comprises a memory, a micom, an OSD integrated circuit(IC), and a control panel. In the auto display device and method of on screen display for abnormal monitor, the memory stores a preset data and a display data of current screen and a display data of previous screen and outputs the preset data and the display data of previous screen. The micom controls checks and compares a screen condition by the data information from the memory, and controls the OSD IC. The OSD IC automatically displays a guide message through the OSD by the micom. The control panel selects an OSD menu which is displayed by the OSD IC.
Patent KR-19990023625-A (KR)
Title: 치차식변속기의 자동변속장치
IPC: F16H61/32
Filed: 1998-08-14
Abstract: 2 개의 모터를 제어함으로써 기존의 치차식변속기를 자동변속하는 것을 만족스럽게 수행하기 위한  자동변속장치의 제공을 목적으로 한다. 
     자동변속장치내의 스렉트(select) 기구는, 스렉트용 스텝핑모터 (2)와, 회전을 전달하기 위해 모터기어(3)와 맞물린 스렉트기어가 설치된 스렉트축과, 스렉트축을 치차식변속기의 스렉트 시프트 로드와 연결하기 위한 스렉트 연결수단과, 그리고 스렉트축 회전각을 검출하는 스렉트 센서(6)를 포함하여 구성되고; 그리고 시프트(shift) 기구는, 시프트용모터(9)와, 회전을 전달하기 위해 모터기어(10)와 맞물린 액츄에이터기어(actuator gear)(11)를 고정적으로 가지는 중간축(12)과, 중간축(12)의 바깥둘레에 설치된 긴액츄에이터기어(13)와, 바깥둘레에 수나사가 설치된 시프트축과, 내부 바깥둘레에 수나사(15)와 맞물린 암나사(16)가 설치되고 외부 바깥둘레에 긴액츄에이터기어(13)와 맞물린 시프트기어(14)가 설치된 원통형 슬라이드(17)와, 슬라이드(17)와 스렉트 시프트로드를 연결하는 슬라이드(17)와 결합된 시프트연결수단과, 그리고 슬라이드(17)나 시프트연결수단의 축방향의 이동량을 검지하는 스트로크 센서(19)를 포함하여 구성된다.
Patent KR-19990036670-A (KR)
Title: 땜납과 주석을 인쇄 회로 기판으로부터 제거하는 조성물 및방법
IPC: C23F1/44
Filed: 1998-09-24
Abstract: 주석과 땜납 및 주석-구리 합금을 인쇄 회로 기판의 구리 기판으로부터 제거하는 조성물 및 방법이 설명된다.  상기 조성물의 액체는 땜납과 주석을 용해하기에 충분한 양의 질산 수용액과, 주석-구리 합금을 용해하기에 충분한 양의 철이온의 소스와, 인쇄 회로 기판 사이에서 저항을 개선시키기에 충분한 양의 할로겐화물 이온의 소스를 포함한다.
Patent KR-20000024786-A (KR)
Title: Method for manufacturing bipolar transistor
Inventor: YIM TAE YOON
IPC: H01L21/328
Filed: 1998-10-01
Abstract: PURPOSE: A method for manufacturing bipolar transistor is provided to simply perform a manufacturing process by simultaneously forming a metal layer when forming an ohmic metal to a base ohmic metal. CONSTITUTION: A collector ohmic layer(41), a collector layer(42), a base layer(43), an emitter layer(44), and an emitter ohmic layer(45) are successively formed on a semi-insulating GaAs substrate(40). An emitter region is patterned using a photo lithography process for defining the emitter region and a metal is deposited, and then an emitter ohmic metal(46) is selectively formed. The emitter ohmic metal(46), the emitter ohmic layer(45), the emitter layer(44) are successively etched. A photosensitivity film(47) for defining a base electrode region is coated and the photosensitivity film(47) is selectively removed using the photo lithography process.
Patent KR-20000026361-A (KR)
Title: Semiconductor device having cinductive plug and method for manufacturing the same
Inventor: KIM JIN HO
IPC: H01L21/28
Filed: 1998-10-20
Abstract: PURPOSE: A semiconductor device and method for manufacturing the same are provided to prevent an electro-migration and localized current crowding by using a conductive plug having a spacer. CONSTITUTION: An interlayer dielectric(42) and an upper conductive layer(54) are sequentially formed on a lower conductive layer(40). A via hole(48) is formed in the interlayer dielectric(42) between the lower and upper conductive layers(40,54). A conductive plug(50) for connecting the upper and lower conductive layers(54,40) is formed in the via hole(48). The conductive plug(50) has protrusion part. The semiconductor device further includes a spacer(52a) formed at both sides of the protrusion part of the conductive plug(50).
Patent KR-20000026380-A (KR)
Title: Accel tube ring of ion implanter
Inventor: O SSANG SEOK
IPC: H01L21/265
Filed: 1998-10-20
Abstract: PURPOSE: An accel tube ring of an ion implanter is provided which is easily dis assembled and assembled in preventive maintenance. CONSTITUTION: An accel tube ring of an ion implanter comprises: a first semicircular voltage supplier(100) having grooves for coupling on both ends; a second semicircular voltage supplier(104) having elastic members on both ends and a pair of fixed balls inserted into the grooves for coupling, a diameter of the second semicircular voltage supplier being smaller than that of the first semicircular voltage supplier.
Patent KR-20000026822-A (KR)
Title: Method of feeding oil to linear compressor and structure thereof
Inventor: SONG KYE YEONG
IPC: F04B17/04
Filed: 1998-10-23
Abstract: PURPOSE: A method is provided to smoothly lubricate a linear compressor by descending the viscosity of oil fed between a piston and cylinder as well as by falling the temperature of discharged gas. CONSTITUTION: Oil is fed to a linear compressor by the steps of: pumping oil filling the lower face of a closed container in an oil feeder; cooling a vent terminal of relatively high temperature by feeding the pumped oil to the vent terminal; lubricating and cooling a friction unit of relatively low temperature by feeding the oil to the friction of a piston and a cylinder; and returning the oil to the lower face of the closed container. The method prevent the abrasion and improves the compressive efficiency by increasing the lubricating performance of the friction unit as well as prevents the temperature of gas from being raised by improving the cooling efficiency of the vent terminal.
Patent KR-19990007709-A (KR)
Title: 보리등겨를 주재로한 신규한 보리간장 및 그 제조방법
Filed: 1998-10-23
Abstract: 본원발명은 통상의 발효간장 제조방법에 있어서, 간장발효의 재료가 되는 물질인 단백질 및 전분질 원료로서 보리등겨를 주재로 사용함을 특징으로 하고 이를 반죽 후 성형한 다음 발효전 훈연처리공정을 더 포함하는 보리등겨를 이용한 보리간장 제조방법을 제공하며 색, 맛, 향 등 관능효과에 있어 재래식 간장에 비하여 손색이 없는 뛰어난 효과가 있다.
Patent KR-20000027484-A (KR)
Title: Equipment and method for cutting glass substrate for lcd
Inventor: KIM BYEONG IL
IPC: B23K26/00
Filed: 1998-10-28
Abstract: PURPOSE: A cutter is provided to cut a glass substrate without a cutting defect and at the same time, to prevent the generation of a glass fragment while the glass substrate is cut by previously preventing the cutting defect. CONSTITUTION: A cutting equipment of a glass substrate for LCD(Liquid Crystal Display) is composed of a glass substrate, a glass substrate heater for partially heating the glass substrate, a cooling device for quickly cooling the glass substrate and a control process device for controlling the equipment. Herein, a spray nozzle(80) is installed on a second solenoid valve(74a) installed in the outlet of a storage tank(74), and the nozzle installed with a pressure regulator(86) for regulating the pressure of cooling gas is formed for artificially regulating so the cooling temperature of a scribe line part as to be lower compared to the other parts when the cooling gas is sprayed through the nozzle.
Patent KR-20000027847-A (KR)
Title: Method of forming gate electrode of semiconductor device
Inventor: SON HO MIN
IPC: H01L21/28
Filed: 1998-10-29
Abstract: PURPOSE: A method of forming a gate electrode of a semiconductor device is provided to prevent electrical characteristics of a doped polysilicon layer from being deteriorated by an undoped polysilicon by using a doped silicon having two phases caused by P ion injection in a polycide gate. CONSTITUTION: A method of forming a gate electrode having a polycide structure, comprises the steps of: forming a doped polysilicon layer(30) after forming a gate oxidation layer(20) on a substrate; forming a thin conductive silicon nitride layer(40) on the surface of the doped polysilicon layer; forming an undoped polysilicon layer(50) on the silicon nitride layer; forming a tungsten silicide layer(60) on the undoped polysilicon layer; doping the undoped polysilicon layer by injecting impurities into the entire tungsten silicide layer; and performing a succeeding thermal process after the impurity-injecting process.
Patent KR-20000031170-A (KR)
Title: Method for automatically controlling htr code by using fuzzy logic
Inventor: SIN KYUNG CHUL
IPC: H04M3/22
Filed: 1998-11-04
Abstract: PURPOSE: An automatic HTR(Hard to Reach) control method is provided to automatically block a connection of a call arriving to a specific subscriber or a specific arrival exchanger by using a fuzzy logic algorithm in a dialing exchanger or a switching exchanger. CONSTITUTION: The HTR control method comprises steps of obtaining a change of uncompleted call rate(CUCR) and an uncompleted call rate(UCR) by measuring a process traffic per a unit time, and obtaining UCRf and CUCRf by dividing the UCR by one fixed constant(alpha) and the CUCR by the other fixed constant(beta); obtaining a fuzzy membership function set of the UCR(Sucr(f)) and a fuzzy membership function set of the CUCR(Scucr(f)), converting the Sucr(f) and the Scucr(f) into a fuzzy set of change of blocking rate(CBRf(i,j)), and then calculating the CBRf(i,j) into a new fuzzy change of blocking rate(CBRf); obtaining a change of blocking rate by multiplying the CBRf by a constant(gamma), and obtaining a new call connection blocking rate(CCBRn) by adding the CBR to a prior obtained call connection blocking rate(CCBRn-1).
Patent KR-20000031677-A (KR)
Title: Service system and method using communication terminal
Inventor: LEE CHUL HO
IPC: G06Q20/32
Filed: 1998-11-09
Abstract: PURPOSE: A service system using communication terminal is provided to let a user use the service equipment such as a vending machine and an automatic ticket issuer by using a communication terminal such as a cellular phone or a land phone though the user has no cash or credit card. CONSTITUTION: A service system using communication terminal comprises an antenna(100), a wireless signal receiver(110), a data processor(120), a controller(130), a service actuator(140) and an information storage memory(150). The antenna(110) receives wireless signals including an equipment identification code and an amount of money, and the wireless receiver(120) processes the received wireless signals. If the identification code is appropriate, the data processor(120) extracts the amount of the service money. The controller(150) controls the service actuator(140) corresponding to the extracted amount of the service money.
Patent KR-19990045154-A (KR)
Title: 인쇄 회로 기판 제조 방법
IPC: G03F7/027
Filed: 1998-11-10
Abstract: 본 발명은 인쇄 회로 기판(PCB)을 제조하는 방법으로서 전착 코팅 장치를 사용에 의한 전착 코팅 방법에 따라 인쇄 회로에 사용하기 위해 부분적으로 동 패턴을 갖는 동피복 절연 적층 기판 상에 액체 감광성 레지스트를 코팅하는 방법을 포함하고, 이 액체 감광성 레지스트는 0.01Pa·sec 내지 1Pa·sec의 범위인 겉보기 점도와, 1.2 내지 8의 범위인 구조 점도율을 가지며, 좋게는 1.3MΩ·cm 내지 150MΩ·cm의 범위인 체적 고유 저항을 갖는다.
Patent KR-20000032166-A (KR)
Title: Method for transferring data using atapi command transfer format
Inventor: SEO WON HO
IPC: G06F11/00
Filed: 1998-11-13
Abstract: PURPOSE: A method for transferring data using AT Attachment System Interface(ATAPI) command transfer format is provided to easily identify text data information readable even if some error exists by transferring data information to a PC by adding command ignoring ECC error to ATAPI transfer format. CONSTITUTION: A packet type command data is transmitted according to a key input for revival of recorded data. In the transferred command data, an error correction ignore state is judged. If it is an error correction mode set up, revived data is transferred to a PC by reading signal regardless of an error state. If it is not an error correction mode set up, information transfer of read signal is stopped, and if an error does not exist, data information is transferred to the PC.
Patent KR-20000032958-A (KR)
Title: System and method for measuring tx voltage standing wave ratio of cdma base station
Inventor: HYON KYONG SEOK
IPC: H04B7/26
Filed: 1998-11-18
Abstract: PURPOSE: A system for measuring the Tx voltage standing wave ratio of a CDMA(Code Division Multiple Access) base station and the method thereof are provided to diagnose efficiently the antenna performance of the CDMA base station under operation by getting an exact Tx voltage standing wave ratio by the improvement of the Tx voltage standing wave ratio measurement method using a circulator and a single directional coupler. CONSTITUTION: A circulator(110) sends a reflect power, reflected at an antenna(100) and returned to a base station, only to a base station test unit(170). A single directional coupler(130) sends a forward power transmitted to the antenna direction to the base station test unit(170) under the operation of a CDMA base station. Measuring the strength of the reflect power reflected at the antenna(100) and returned to the base station, the base station test unit(170) reports it to a base station control processor(180).
Patent KR-19990062685-A (KR)
Title: 자기 저항 효과 소자 및 그 제조 방법
IPC: G11B5/00
Filed: 1998-12-01
Abstract: 본 발명은 금속 반강자성층 및/또는 페리 자성층의 조합으로 이루어진 자화 고정층의 초격자를 구성하는 층의 두께를 제어함으로써, 자화 방향을 회전시키게 하는 온도를 조절할 수 있는 자기 저항(MR) 효과 소자를 제공한다.
Patent KR-19990046237-A (KR)
Title: 방음 블록 및 그것을 사용한 방음벽_
IPC: E01F8/00
Filed: 1998-12-11
Abstract: 본 발명은 일정하게 형성된 프레임과 일체로 형성되는 소음을 흡수하는 흡음성 콘크리트 재질의 흡음부를 갖는 방음 블록과, 이 방음 블록들을 수용하는 패널들을 지면에 일정한 간격으로 이격되어 설치된 직립 기둥들 사이에 적층하여 시공된 방음벽을 포함한다.
Patent KR-20000039914-A (KR)
Title: Key input scanning apparatus
Inventor: SHIN BONG YONG
IPC: G06F15/02
Filed: 1998-12-16
Abstract: PURPOSE: A key input scanning apparatus is provided to recognize a key input by a single read operation during key input scanning of a system having data input keys. CONSTITUTION: A key input scanning apparatus includes the following units. A write data generation unit generates a write data of a certain pattern and outputs data of the counted number of system clocks by combining inputted system clocks and read data. A key input unit receives the write data at one contact point of each key switch having a matrix structure, and receives an operation power source of a predetermined level at the remainder of contact points by a pull-up resistance, thereby outputting read data whose level is varied according to a key switch operation.
Patent KR-20000040351-A (KR)
Title: Treating method of wastewater using contacting with microorganisms
Inventor: PARK JOO SUK
IPC: C02F3/30
Filed: 1998-12-18
Abstract: PURPOSE: A treating method of wastewater using microorganism is provided, which is characterized in that organic matters are attached to the microorganism and settled, then, nitrogen and phosphorus are removed. CONSTITUTION: Wastewater flows into the contacting tank to fix on the microorganism, then, the mixed water passed to the first settling pond. Microorganism sludge and water are separated, and the sludge is passed to discharging tank of phosphorus. Treated water flows into the nitrifying tank which has media, and ammonium nitrate is oxidized into nitric nitrate. A membrane is installed in the nitrifying tank so that extra settling tank is not necessary. Mixed water is transferred to tertiary settling pond, and some of the sludge is returned to the contacting tank.