baber/WOPTO huggingface dataset:
Patent KR-19990037011-A (KR)
Title: 탄성재료 제품용 보강직물 및 이 보강직물을 포함하는 탄성재료제품
IPC: B60C9/22
Filed: 1998-10-07
Abstract: 본 발명은 적어도 인장강도을 가지며, 소정의 방향으로 놓여져 있으며, 평행하며 평면상에서 서로 인접한 복수의 섬유형 요소를 포함하는 탄성재료로 제조되는 제품을 위한 보강 텍스타일, 특히 공기 타이어를 제공한다. 보강 요소, 바람직하게 코드는, 탄성재료내로 편입되며, 또한 적어도 텍스타일 부피의 최대 40%를 차지한다.
Patent KR-20000025436-A (KR)
Title: Method for retransmitting radio packets using plurality of response signals in radio communication system
Inventor: SONG JAE SEOP
IPC: H04L12/58
Filed: 1998-10-12
Abstract: PURPOSE: A method for retransmitting packets according to response signals(affirmative response signals or negative response signals) from a receiver for radio packets transmitted from a transmitter, is provided to decide whether the radio packets are retransmitted by using the plurality of response signals, and to improve transmission efficiency by avoiding the whole re-transmission of the packets, caused by transmission errors of the response signals. CONSTITUTION: A method for retransmitting radio packets according to response signals in a radio communication system comprises the steps of: deciding whether reception errors is generated, by receiving radio packets by radio stations; transmitting affirmative response signals for several times in different time to a first radio station, when it is normal reception; transmitting negative response signals for several times in different time to the first radio station, when the reception errors are generated; deciding whether the affirmative response signals and the negative response signals are received from a second radio station within predetermined time by the first radio station; completing a transmission operation of the corresponding radio packets, when one of the affirmative response signals is received within the predetermined time; and retransmitting the corresponding radio packets, when one of the negative response signals is received or when no signal is received.
Patent KR-20000026288-A (KR)
Title: Method for eliminating noises of enhanced variable rate codec of cdma system in weak electromagnetic field
Inventor: KIM YOUNG JIN
IPC: G10L19/012
Filed: 1998-10-16
Abstract: PURPOSE: A method is provided to eliminate noises of an EVRC(Enhanced Variable Rate Codec(Coder-Decoder) by outputting unnecessary noises, generated in a weak electromagnetic field of a CDMA(Cord Division Multiple Access) system, as background noises. CONSTITUTION: A method for eliminating noises of an EVRC(Enhanced Variable Rate Codec(Coder-Decoder) in a weak electromagnetic field distinguishes full rates/half rates or 1/8 rates, distinguished through a valid packet right after a previous state when an error packet is inputted. A seed value of a random number generator is converted into a static variable in a process routine of an error frame, corresponding to the distinguished full rates of the half rates. The seed value is set up only in a first sub frame of a first error packet.
Patent KR-20000026652-A (KR)
Title: Circuit for inputting television signal
Inventor: KIM YONG GYU
IPC: H04N5/50
Filed: 1998-10-22
Abstract: PURPOSE: A circuit for inputting a television signal is provided to remove an IF(Intermediate Frequency) signal by composing an induction trap filter on an output terminal of an antenna, to minimize mutual affection caused by tuning changes in bands, by matching an impedance of the antenna with resonant circuits of each band, and provided to be operated without being affected by other bands by giving divided bands from one output terminal, and to normally operate other parts even when malfunction occurs in one part. CONSTITUTION: A circuit for inputting a television signal comprises a first RF(Radio Frequency) resonant circuit(11), a second RF resonant circuit(12), a third RF resonant circuit(13), an induction trap filter(30), a first inductor(41), a second inductor(42), and a third inductor(43). The first RF resonant circuit processes a high band of a frequency band with 470 to 860MHz in a television frequency band. The second RF resonant circuit processes a mid band of a frequency band with 160 to 470MHz. The third RF resonant circuit processes a low band of a frequency band with 50 to 160MHz. The induction trap filter includes a fourth inductor for eliminating an IF(Intermediate Frequency) signal band in whole frequency Scopes received through the antenna, and for matching an impedance between the antenna and the each RF resonant circuit. The first inductor is connected between an output terminal of the inductor trap filter and an input terminal of the first RF resonant circuit in series. The second inductor is connected between the output terminal of the induction trap filter and an input terminal of the second RF resonant circuit in series. The third inductor is connected between the output terminal of the induction trap filter and an input terminal of the third RF resonant circuit in series.
Patent KR-20000031844-A (KR)
Title: Gain stabilizing device for power amplifier
Inventor: SONG SU KEUN
IPC: H03G9/00
Filed: 1998-11-10
Abstract: PURPOSE: A gain stabilizing device for a power amplifier is provided to compensate gain characteristic of the power amplifier and thereby stabilize the frequency with respect to the entire band of a desired frequency. CONSTITUTION: A gain stabilizing device includes a detecting means for detecting input/output of a power amplifier (11) and a variable voltage damper (13). The gain stabilizing device further includes an A/D converting means (18) for digitizing an input power signal and an output power signal from the power amplifier, a temperature sensing means (14) for extracting temperature characteristic of the power amplifier (11), and a microprocessor (17). The microprocessor (17) stores an experimental approximate value according to H/W characteristic of the power amplifier (11), and is programmed to control damping of the damper (13) so that the digitized input/output power characteristic data inputted from the A/D converting means (18) and temperature sensing means approach to the experimental approximate value. A D/A converting means (16) converted the control signal of the microprocessor (17) to an analog signal and transfers it to the variable voltage damper (13).
Patent KR-20000032161-A (KR)
Title: Cathode-ray tube
Inventor: PYOUN DO HOON
IPC: H01J29/86
Filed: 1998-11-13
Abstract: PURPOSE: A cathode-ray tube is provided to acquire an optimal thickness of circumference of a panel, thereby minimizing a raster distortion of an electron beam due to strength and deflection of a shadow mask. CONSTITUTION: Outside face of a cathode-ray tube is flat. Inside face of the cathode-ray tube has a curve-ratio. Here, (Th - Tc) / (Td - Tc) is same or above 0.75, and same or below 0.85. The 'Th' is a thickness of a short side(14) which is cross to a horizontal axis(HI). The 'Tc' is a thickness of a center portion of a panel. Also, (Tv - Tc)/(Td - Tc) is same or above 0.75, and same or below 0.85. The 'Tv' is a thickness of a long side(12) which is cross to a vertical axis(VI).
Patent KR-20000032795-A (KR)
Title: Carbon material active material for lithium ion secondary cell
Inventor: RYU JAE YUL
IPC: H01M10/0525
Filed: 1998-11-18
Abstract: PURPOSE: A carbon active material for a lithium ion secondary cell is provided which minimizes the defect and maximizes the advantage of a crystal graphite and an asynchronous carbon. CONSTITUTION: A carbon active material for a lithium ion secondary cell which has good voltage flatness, initial charge/discharge efficiency, high efficient charge/discharge characteristics and cycle lifetime characteristics is provided. During differential thermal analysis, the carbon active material shows more than two heat generation peaks, and the heat generation peaks forms a shoulder by being overlapped each other. The temperature difference between two heat generation peaks is below 200°C.
Patent KR-20000033915-A (KR)
Title: Exhaust system in apparatus for coating photoresist
Inventor: LEE JONG GEON
IPC: H01L21/027
Filed: 1998-11-26
Abstract: PURPOSE: An exhaust system in an apparatus for coating photoresist is provided to prevent a drain line from clogging so that the productivity is improved. CONSTITUTION: An exhaust system comprises plural drain lines(50, 60), an exhaust manifold (80), a main drain line, a differential pressure sensor(81), a damper(82), an organic solvents jetter(90), an organic solvents separator(100) and an organic solvents drain line(120). The drain lines(50, 60) are connected to a coating chamber(40) so that excess photoresist solvent and solvent vapor are induced. The exhaust manifold(80) are connected to lower portions of drain lines(50, 60) to integrate the excess photoresist solvent and solvent vapor. The main drain line is connected to lower portion of the exhaust manifold(80). The differential pressure sensor(81) and damper(82) are respectively installed at upper and lower portion of the exhaust manifold(80). The organic solvents jetter(90) jets the organic solvents into the drain lines(50, 60). The organic solvents separator(100) is installed at the exhaust manifold(80) so that the jetted organic solvents is not induced into the main drain line.
Patent KR-20000034529-A (KR)
Title: Device for correcting jitter in tv system, and method therefor
Inventor: KIM JEONG CHEOL
IPC: H04N5/12
Filed: 1998-11-30
Abstract: PURPOSE: A device for correcting a jitter in a TV system and a method therefor are provided to correct a jitter element(s) which may be generated due to an externally-applied synchronous signal and/or truncation error. CONSTITUTION: A device for correcting a jitter in a TV system has a horizontal driving signal generating unit(6) for generating a horizontal driving signal according to a system clock signal and a first synchronous signal. A first phase difference detecting unit(18) detects a first phase difference between a second synchronous signal which is externally inputted from the TV system, which is asynchronous to the system clock signal, and which may become the first synchronous signal with the system clock signal. A jitter correcting unit(12) corrects the jitter element in the horizontal driving signal according to the first phase difference, and outputs the horizontal driving signal.
Patent KR-19990062740-A (KR)
Title: 메틸디티오카바지네이트를 사용한 2-(메틸티오)-5-(트리플루오로메틸)-1,3,4-티아디아졸의 제조방법
IPC: C07D285/12
Filed: 1998-12-02
Abstract: 본 발명은 2-(메틸티오)-5-(트리플루오로메틸)-1,3,4-티아디아졸을 제조하는 방법을 제공한다.  상기 방법은 메틸디티오카바지네이트를 트리플루오로아세트산과 반응시켜서 2-(메틸티오)-5-(트리플루오로메틸)-1,3,4-티아디아졸 및 2,5-비스-(메틸티오)-1,3,4-티아디아졸의 혼합물을 형성하고, 혼합물을 산성화시켜 2,5-비스-(메틸티오)-1,3,4-티아디아졸을 선택적으로 제거하는 단계들을 포함한다.
Patent KR-20000040436-A (KR)
Title: Device and method for controlling opening of valve
Inventor: LEE BOK HA
IPC: B21B37/00
Filed: 1998-12-18
Abstract: PURPOSE: A device and a method for controlling the opening of a valve is provided to automate the valve which circulates collected rolling oil to a main tank after injecting rolling oil to a roller for producing a cool rolling steel plate having regular thickness. CONSTITUTION: A system decides if a line is on traveling. If so, a device keeps operating and if not, the device stops operating. The system also decides if a level control is automated when the line is on traveling. If so, a second timer and a second selecting switch are turned on and a first and a first switch are turned off. Then an intercepting face is shut by the drive of each timer and switch. The intercepting face is open when the recognized opening is not deviated from the set opening, when the measured pressure is not deviated from the set pressure and when the measured level of a collecting tank is high. When the level of the collecting tank is less than the set value, the second timer and switch are turned off and the first timer and switch are turned on to turn off a bypass control face and to shut the intercepting face at the same time. When the intercepting face is open again, the second timer and switch are turned on and the first timer and switch are turned off to open the level control face. The intercepting face is shut by the drive of each timer and switch.
Patent KR-20000042830-A (KR)
Title: Method for forming contact hole of semiconductor device
Inventor: YUN GUK HAN
IPC: H01L21/28
Filed: 1998-12-28
Abstract: PURPOSE: A method for forming a contact hole of a semiconductor device is provided to form a contact hole in plural layer-insulating layers with an organic spin-on-glass layer. CONSTITUTION: A method for forming a contact hole of a semiconductor device comprises forming wiring(13) on a substrate(11), forming a first layer-insulating layer(15) of organic insulating material with low dielectric constant and a second layer-insulating layer(17) of inorganic material, coating photoresist on the second layer-insulating layer(17), pattering the photoresist to expose a portion corresponding to the wiring(13), etching the first and the second layer-insulating layer(15, 17) to form a contact hole(21), and removing the photoresist.
Patent KR-20000043303-A (KR)
Title: Device for aligning playback head of adaptive type for vcr playback mode
Inventor: KANG DONG HO
IPC: G11B20/20
Filed: 1998-12-28
Abstract: PURPOSE: A device for aligning a playback head of adaptive type for a VCR playback mode is provided to reduce a skew distortion while maintaining the quality of images by adjusting the gap between SP/EP head cores. CONSTITUTION: A video signal is read by using first/second heads(161A,161B). First/second transformers(163A,163B) of a piezo-electric element driving unit(160) convert the output signals of the heads into electric signals. First/second amplify units(165A,165B) amplify the output signals of the first/second transformers for a certain rate. A phase comparing circuit(167) compares the phases of the output signals from the first/second amplify units, and the difference is outputted to a piezo-electric element driving circuit(169). The piezo-electric element driving circuit controls a piezo-electric element power supply unit(140) for controlling the piezo-electric element. Therefore, the distance between SP/EP head cores is adjusted for a certain value applied for the video type. When the distance between the head cores is adjusted, a skew distortion is reduced while obtaining a clear image.
Patent KR-20000044759-A (KR)
Title: Method for collecting ett information in digital broadcasting receiver
Inventor: RYU CHUNG IL
IPC: H04N7/088
Filed: 1998-12-30
Abstract: PURPOSE: A method for collecting ETT(Extended Text Table) information in a digital broadcasting receiver is provided to receive ETT information within PSIP(Program and System Information Protocol) information received with a broadcasting signal. CONSTITUTION: A method for collecting ETT information in a digital broadcasting receiver comprises the following steps. Arbitrary ETT information is selected from various ETT information composing guide screens. Option information is set up and stored to display a guide screen composed of the selected ETT information. A corresponding broadcasting channel is tuned and stored option information is read if a channel switching key input signal is received. The ETT information for the switched channel is received and the ETT information corresponding to the read option information is extracted selectively. A guide screen for the switched channel is displayed on the basis of the extracted ETT information.
Patent KR-19990044294-A (KR)
Title: 샤프트, 특히 내연 기관 구동축의 불균일 회전을 실질적으로 감소시키기 위한 시스템 및 그 방법
IPC: B60W10/08
Filed: 1996-08-31
Abstract: 본 발명은 샤프트의, 특히 내연 기관(1)의 구동축(10)의, 또는 그와 연결되어 있거나 연결가능한 샤프트의 불균일 회전을 실질적으로 감소시키기 위한 시스템에 관한 것이다.  본 발명은 샤프트와 연결되어 있거나 연결가능한 적어도 하나의 전기 기계(4)를 포함하는데, 상기 전기 기계(4)는 빠르게 변하는 회전역률을 발생하도록, 그리고 구동효과 또는 제동 또는 발생기로서의 효과를 부가적으로 얻어내기 위해서, 상기 회전역률에 대하여 정방향 내지는 부방향 회전역률을 간섭하는 방식으로 제어된다.  본 발명은 또한 상기 시스템을 이용하여 불균일 회전 실질적으로 감소시키기 위한 방법에 관한 것이다.
Patent KR-19990064116-A (KR)
Title: 프레임 장치와 프레임 제작 공정
IPC: B62D27/02
Filed: 1996-01-11
Abstract: 각종 차량 제작시 사용할 프레임 장치와 프레임 제작 공정에 관한 것이다.  장치(30)는 각각이 하나의 종방향 압출물로 제작된 하나 이상의 프레임 부재(31, 32)와 또한 하나 이상의 교차 부재(34-48)를 포함한다.  프레임 부재는 국소 가열로 연화된 부위(61-66)를 포함한다.  연화부위는 특정한 프레임 구성의 프로파일에 따라 예정방향으로 굽힘 가공하여 반경크기를 변화시키고 또한 예비 연화 경도로 다시 경화 처리할 수 있다.
Patent KR-19990067645-A (KR)
IPC: C07D215/48
Filed: 1996-11-05
Abstract: A compound of the formula wherein R1 is hydrogen or C1-6-alkyl; R2 is C1-6-alkyl or adamantyl; R3 is C1-6-alkyl or hydroxy; or R2 and R3 taken together are -(CR6R7)n-; R4 is C2-8-alkyl, C2-8-alkenyl, C2-8-alkynyl, -OCH2R5 or C2-8-alkanoyl; and hydrogen when R3 is hydroxy; R5 is C1-6-alkyl, C2-6-alkenyl or C2-6-alkynyl; R6 and R7 are hydrogen or C1-6-alkyl; Y is oxygen or sulphur; and n is 3, 4 or 5, and pharmaceutically usable salts of carboxylic acids of formula I act as selective ligands of retinoic acid  gamma -receptors and are useful for the treatment of epithelial lesions.
Patent KR-19990076807-A (KR)
Title: 안테나 어댑터
IPC: H01Q1/24
Filed: 1996-12-26
Abstract: 본 발명은 휴대용 무선전화기(200)를 테스트 장비와 인터페이스하기 위한 신규하고 개선된 안테나 어댑터를 제공한다.  바람직한 실시예에서, 어댑터 어셈블리는 확장 컨넥터(102)의 일단에 RF 컨넥터(104)를 포함하며, 이는 일반적인 안테나 어셈블리를 대신하여 무선전화기(200)의 안테나 포트에 직접 연결한다.  확장 컨넥터(102)는 다른 단에서 무선전화기(200)의 바닥에 배터리 충전 포트의 외부 접지(204)와 전기적 접속을 이룬다.  RF 컨넥터(104)는 RF 테스트 장비에 연결될 때 RF 신호 감쇠를 최소화하도록 임피던스 정합될 수 있다.  예시적인 실시예에서, RF 컨넥터(104)는 50옴의 임피던스 정합된 SMA 컨넥터를 포함한다.
Patent KR-19990076910-A (KR)
Title: 뉴클레오타이드 동족체류
Filed: 1996-12-13
Abstract: 포스포네이트 뉴클레오타이드 동족체의 인 원자에 결합된 에스테르 결합기를 갖는다는 특징을 갖는 뉴클레오타이드 포스포네이트 에스테르가 제공된다. 이들의 동족체는 생체내에서 가수분해하여 상응하는 포스포네이트 뉴클레오타이드 동족체를 생산하는 에스테르 결합을 함유한다. 이들의 합성방법 및 합성 중간체 그리고 용도도 개시된다.
Patent KR-19990076949-A (KR)
Title: 컴퓨터시스템내의단일그래픽패널상에서액세스및사용하기위해다수의스크린정보를리용하는방법
IPC: G06F15/00
Filed: 1996-10-02
Abstract: 다수의 스크린으로부터의 문자 기반형 데이터 정보를 단일 그래픽 패널 디스플레이용의 그래픽 기반형 데이터 정보로 변환하는 스크린 변환 메카니즘(166)이 개시된다.  스크린 변환 메카니즘(166)은 전형적으로 호스크 컴퓨터(100)상에 위치한 문자 기반형 애플리케이션에서 이용가능한 기능 및 옵션이, 즉석에서 그래픽 기반형 사용자 터미널(149)상의 디스플레이를 위해 변환되도록 한다.  단일 그래픽 패널은 사용자가 모든 옵션 또는 기능을 액세스하게 한다.
Patent KR-19990082133-A (KR)
Title: 유리 벤딩 오븐에서의 가열용 제어 시스템
IPC: C03B29/08
Filed: 1997-01-30
Abstract: 본 발명은 가열 요소(3)가 장착된 예열 섹션(E1 내지 E6), 벤딩 섹션(T), 유리 플레이트를 예열 섹션을 통해 벤딩 섹션으로 이동시키는 장치를 포함하는 유리 벤딩 오븐의 가열용 제어 시스템에 관한 것으로서, 주형에 의해 보유된 유리 플레이트는 원하는 형태로 벤딩되고, 벤딩은, 유리 온도가 벤딩에 필요한 온도에 도달된 후 중력의 도움으로 일어난다.  본 발명의 시스템은 유리 타입 또는 서로 유사한 유리 타입 군에 대한 벤딩 섹션에서의 선택된 벤딩 시간(Tj)을 일정하게 유지시키도록 제어하고, 벤딩 섹션(T)으로 이동하는 유리가 서로에 대해 본질적으로 동일한 온도를 갖도록 예열 섹션을 통과하는 유리의 온도 상승을 제어한다.
Patent KR-19990082368-A (KR)
Title: 실질적인 단열 상태하에서의 시아노피리딘의 연속적인 가수분해방법
IPC: C07D213/79
Filed: 1997-02-04
Abstract: 본 발명은 치환 및 비치환된 시아노피리딘을 염기의 존재하에 실질적인 단열 상태하에서 가수분해시켜 피리딘 치환된 아미드 및/또는 피리딘 치환된 카복실산을 제조하는 바람직한 방법에 관한 것이다.  바람직한 방법은 캐스케이드 반응 용기, 루프형 반응기 또는 유동관 반응기를 포함한 각종 연속 반응기에서 수행할 수 있다.  더욱 바람직하게는 B-비타민 복합체의 중요 일원으로 제공되는, 니코틴아미드 및 니아신의 효율적이고 유리한 제조 방법을 제공한다.
Patent KR-20000005303-A (KR)
Title: Thrust compensating process and device for turbomachines
Inventor: REMBERG AXEL
IPC: F01D3/04
Filed: 1997-04-02
Abstract: PURPOSE: The turbo machines is to compensated a thrust, to provide a corresponding apparatus and in particular must compensate axial power into lengthways. CONSTITUTION: One first outside surface of part of the inner casing is subdivided into two parts of surface for axial thrust compensating and is applied different pressures. In this case, the restriction of between the two different pressures is caused by at least one means, in particular a gasket. The outside of part of the inner casing is pressed for axial thrust compensating. Outflow press and inflow press are at least a same shape.
Patent KR-20000015778-A (KR)
Title: Remedy for rosacea
Inventor: HITTEL NORBERT
IPC: C07D455/04
Filed: 1997-05-19
Abstract: PURPOSE: A remedy for rosacea is provided to be effective to an intractable rosacea and to have a low toxicity, a little side effect, and a long-lasting drug effect. CONSTITUTION: A remedy for rosacea being efficacious even against intractable rosacea which cannot be completely cured by using remedies comprising antibiotics such as minocycline and having a low toxicity, little side effects and a long-lasting drug effect. The remedy for rosacea contains as the active ingredient at least one compound selected from the group consisting of benzo-heterocyclic derivatives represented by general formula (1) and salts thereof, wherein R represents lower alkyl; and X represents halogeno.
Patent KR-20000016194-A (KR)
Title: Relay having changable bandwidth
Inventor: LATT MIKAEL
IPC: H04B7/26
Filed: 1997-05-28
Abstract: PURPOSE: A relay having changeable bandwidth is provided to control a middle frequency of a bandwidth passing filter unit electrically by using a mixer connected with a local oscillator to enable controlling in direct or remote control. CONSTITUTION: In the relay for cellular phone comprises an uplink for amplifying a signal toward a base station, a downlink for amplifying a signal toward cellular phone, and a plural parallel amplifier chain is formed in the two links, at least one parallel amplifier chain includes a filter having a bandwidth passing filter unit connected in series. At least two bandwidth passing filter unit has a passing controllable bandwidth partly overlapped and a central frequency of two band passing filter unit is controllable for the overlap bandwidth to be changeable.
Patent KR-20000016420-A (KR)
Title: Granular leuco vat dye preparation
Inventor: GGYTG MANFRED
IPC: D06P1/22
Filed: 1997-06-05
Abstract: PURPOSE: A leuco vat dye is stable to oxidation and useful for dying. CONSTITUTION: The leuco vat dye preparation comprises 10 to 100 wt.% of any one selected from the group consisting of leuco vat dye, alkali metal hydroxide and alpha-hydroxy C1-C4 alkylsulfinic acid, salts or derivatives thereof; and 0 to 90 wt.% of hydrosulfite as a reducing agent. The preparation comprises 20 to 80 wt.% of leuco vat dye, 3 to 20 wt.% of alkali metal hydroxide and 5 to 55 wt.% of the reducing agent. The leuco vat dye is leuco indigo or leuco type indigo derivatives. The alpha-hydroxy C1-C4 alkylsulfinic acid is hydroxymethylsulfinic acid or a salt thereof. The leuco vat dye preparation is manufactured by mixing an aqueous alkaline solution of the leuco vat dye and a reducing solution or suspension in water and/or an organic solvent at the absence of oxygen and dry concentrating the mixture under the inert gas atmosphere or under vacuum.
Patent KR-20000016795-A (KR)
Title: Water-in-oil emulsion spray drying process
Inventor: DAVIES WILLIAM BLOOR
IPC: B01D1/14
Filed: 1997-06-05
Abstract: PURPOSE: A method for spray-drying an emulsion in water-in-soil is provided to obtain dried water-soluble or water-swellable polymer particle or composition thereof. CONSTITUTION: Processes for spray-drying water-soluble and water-swellable vinyl-addition polymer-containing dispersions, emulsions and micro emulsions to obtain substantially dry water-soluble or water-swellable polymer particles, compositions of substantially dry water-soluble or water-swellable polymer particles, methods of agglomerating spray-dried polymer particles, and methods of using spray-dried polymer particles and agglomerates in water-creating, mining, paper, food processing, soil conditioning, solution thickening, biotechnological, and oil recovery applications are disclosed.
Patent KR-19990067847-A (KR)
Title: 광 디스크 드라이브
IPC: G11B33/08
Filed: 1999-01-12
Abstract: 본 발명은 광 디스크로부터 정보를 재생하는 광 디스크 드라이브에 관한 것이다.  이러한 광 디스크 드라이브는 광 디스크의 회전으로 인한 진동을 검출하는 진동 검출 수단, 진동 검출 수단에 의해 검출된 진동이 허용 진동에 대한 임계 포인트인 주어진 임계치와 동일한 또는 인접하는 광 디스크 회전 속도를 산출하는 연산 수단 및 광 디스크가 연산 수단에 의해 산출된 회전 속도로 회전하도록 제어하는 제어 수단을 포함한다.