baber/WOPTO huggingface dataset:
Patent KR-20010075097-A (KR)
Title: 공급망 관련 로지스틱스 정보 표시 시스템 및 방법
IPC: G06F3/033
Filed: 1999-09-17
Abstract: 하나 이상의 컴퓨터를 사용하여 로지스틱스 정보를 표시하는 시스템은 프리젠테이션 인터페이스를 포함한다.  상기 프리젠테이션 인터페이스는 복수의 아이콘과 링크를 표시하는 제1 패널을 생성한다.  상기 아이콘은 공급망 내의 개체를 나타낸다.  각 링크는 아이콘 2개씩을 연결시키고 상기 두 아이콘이 나타내는 개체간에 하나 이상의 항목을 이동시키는 하나 이상의 분배 자원을 나타낸다.  각 링크는 상기 두 아이콘이 나타내는 개체간에 하나 이상의 항목을 이동시키는 것에 관련된 분배 시간을 나타낸다.  상기 두 아이콘이 나타내는 개체간에 하나 이상의 항목을 이동시키는 것에 관련된 분배 시간에 비례하는 길이를 가지거나 상기 두 아이콘이 나타내는 개체간에 하나 이상의 항목을 이동시키는 것에 관련된 분배 시간을 나타내는 시간 아이콘을 포함할 수 있다.
Patent KR-20010079875-A (KR)
Inventor: CHOI HO JIN
IPC: C07C323/10
Filed: 1999-10-28
Abstract: PURPOSE: Compounds comprising polyene chain structure and processes for preparing the same are to provide intermediate compounds used for the efficient synthesis of the polyene chain structure with fully taking advantage of its symmetry and with solving the problem of by-products such as phosphine oxide by the employment of the Julia type sulfone olefination strategy, processes for preparing the same, and processes for preparing P-carotene by using the same. And the compounds and processes are to provide a process for preparing 6-octatriene-1, 8-dial used in the process for preparing 13-carotene according to BASF through the synthetic steps with reducing two stages from the conventional process. CONSTITUTION: A process for preparing beta -carotene (Chemical Formula 3) or a compound having polyene chain structure, is characterized in that the polyene chain structure is formed by applying Ramberg-Backlund reaction to a diallylic sulfone obtained by the oxidation of diallylic sulfide. Further, the present invention provides retinyl sulfide which was synthesized by the coupling of diallylic sulfide with the corresponding Wittig salt.
Patent KR-20010093780-A (KR)
IPC: F02D45/00
Filed: 1999-10-26
Abstract: 가변적인 기하학적 압축비와 전기적으로 작동되는 흡기 밸브 및 엔진 실린더에 균일한 연료/공기 혼합기를 공급하기 위한 수단을 가진 4행정 내연기관. 제어 유닛(15)에 의해 흡기 밸브(9)와 압축비가 제어됨으로써 보다 낮은 엔진 rpm 범위내에서 연료/공기 혼합기는 자체-점화하도록 압축된다.
Patent KR-20010101507-A (KR)
IPC: H01L21/768
Filed: 2000-10-26
Abstract: 본 발명에서는 프로그램가능한 디바이스 및 프로그램가능한 디바이스를 제조하는 방법이 제공된다.  프로그램가능한 디바이스는 링크 금속화 라인(a link metallizatin line)위에 규정된 산화물 층을 가지는 링크 금속화 라인을 포함한다.  비아 홀(a via hole)은 산화물 층내에 패터닝(patterning)되어 링크 금속화 라인으로의 경로를 규정한다.  프로그래밍 금속화 라인은 산화물 층위에 규정된다.  프로그래밍 금속화 라인은 비아 홀위에 놓인 중복 부분을 가진다.  중복 부분은 비아 홀내로 용융되어 링크 금속화 라인과 프로그래밍 금속화 라인사이의 프로그래밍 링크를 규정하도록 구성된다.  한 실시예에서, 용융은 원하는 프로그램가능한 디바이스를 향하여 레이저 에너지를 직접적으로 가하여 원하는 프로그래밍을 얻을 수 있는 레이저(a laser)를 실시함으로써 이루어진다.
Patent KR-20010101894-A (KR)
IPC: C22C5/02
Filed: 2000-01-31
Abstract: 실질적으로 보라색의 색조와 부서짐 없이 100kg 하중의 록웰 B 경도 시험을 견뎌낼 정도로 충분한 인성을 가지는 귀금속 합금은 76중량% 내지 83.5중량%의 금과 16.5중량% 내지 21.5중량%의 알루미늄을 포함한다. 일 실시예에서, 이 합금은 78.5중량% 초과 83.5중량% 이하의 금과 나머지는 알루미늄으로 이루어져 있다. 다른 실시예에서, 이 합금은 팔라듐 및 니켈에서 선택된 추가의 원소를 포함한다.
Patent KR-20010108230-A (KR)
IPC: C08K3/36
Filed: 1999-12-20
Abstract: 본 발명은 (A) 도막 형성성 수지 100 중량부에 대하여, (B) 흡유량이 30∼200 ml/100 g의 범위내이고, 세공 용적이 0.05∼1.2 ml/g의 범위내인 실리카 미립자를 8∼130 중량부 함유하는 도료 조성물로서, 상기 도료 조성물로부터 형성되는 경화 도막의 유리 전이 온도가 40∼125℃의 범위내인 것을 특징으로 하는 도료 조성물; 및 금속판상에 상기 도료 조성물의 도막이 형성되어 이루어진 도장 금속판에 관한 것이다.
Patent KR-20010113707-A (KR)
IPC: G11B5/596
Filed: 2000-02-17
Abstract: 하드 디스크 드라이브에 대한 서보 정보를 기록하는 방법(148)과, 이 방법에 따라 제조된 디스크 드라이브를 제공한다.  이 방법은 하드 디스크 드라이브(100) 내에 디스크 어셈블리(106)를 장착하기 전에 기준 디스크 표면(130) 상의 위치 기준 정보(150)를 기록하는 것을 포함한다.  일단 디스크 어셈블리(106)가 디스크 드라이브(100)에 부착되면, 서보 정보는 이전 기록된 위치 기준 정보에 기초하여 디스크 표면 상에 기록된다.  실제로, 위치 기준 정보는 사용자 데이터에 의해 소거되거나 기록될 수 있다.
Patent KR-20010108435-A (KR)
Title: Formulation comprising testosteron undecanoate and castor oil
IPC: A61K47/44
Filed: 2000-03-27
Abstract: Disclosed is a pharmaceutical formulation in the form of a capsule for oral administration comprising testosterone undecanoate as an active ingredient dissolved in a pharmaceutically acceptable liquid carrier, characterised in that the liquid carrier comprises at least 50 % by weight of castor oil. The choice of castor oil as the liquid carrier, in conjunction with the choice of testosterone undecanoate as the androgen, makes for a solution which can comprise about 200-250 mg/ml of TU. This is a novel achievement for any orally administerable solution of testosterone. The solution may also contain a lipophilic surfactant such as lauroglycol.
Patent KR-20010108486-A (KR)
IPC: H04B7/26
Filed: 2000-04-04
Abstract: 이동 통신 시스템에서 변동하는 무선 송신 조건 및 예측할 수 없는 상황을 빨리 변경하도록 적응되는 효과적이며 효율적인 전력 제어가 제공된다. 무선 송수신기에 의해서 수신되는 신호로 부터 검출된 신호 파라메타의 값은 요구된 신호 파라메타 값과 비교되고, 그 차가 결정된다. 송신 전력 제어 명령은 무선 송수신기에 전달되며 예를들어 무선 송신 전력의 레벨로 증가 또는 감소를 명령한다. 제 1 및 제 2 형태의 전력 제어 조정이 판단된 차에 따라서 무선 송수신기에 의해서 사용되어야 하는지 여부를 표시하는 전력 제어 표시기에 송신 전력 제어 명령이 포함된다. 하나의 실시예에서, 전력 제어 표시기는 단일 플레그 비트이다. 제 1 값은 제 1 형태의 전력 제어 좆ㅇ이 사용되며, 제 2 값은 제 2 형태의 전력 조정이 사용되어야 함을 의미한다. 어떤 경우에도, 전력 제어 표시기 자체는 제 1 및 제 2 형태의 전력 제어 조정의 특정 세부점을 포함하지 않는다. 이러한 표시기 만이 전달되므로(세부점은 아니다), 주기적으로 전달된 전력 제어 명령과 관련된 신호 오버헤드 및 대역폭 소모가 최소로 유지된다. 제 1 및 제 2 전력 제어 조정의 특정 세부점은 무선 송수신기에 초기에 저장된다. 그러한 세부점은 요구될 때 갱신될 수 있지만, 그러한 갱신의 빈도는 자주일것 같지 않다.그 대신에, 전력 제어 표시기는, 신호 오버헤드가 상당히 증가되지 않는 한 전력 제어 형태의 변경에 영향을 미치는 빠른 송신 전력 제어 메시지에 하나 이상의 플레그 비트를 첨가하는 것 외에도 다른 기술을 사용하여 전달될 수 있다.
Patent KR-20030059660-A (KR)
Inventor: CHOI YONG WON
IPC: H02P6/16
Filed: 2002-01-03
Abstract: PURPOSE: A method is provided to judge whether a motor is abnormal by sensing a rotary speed of a motor according to phase information when performing a sense operation using one sensor. CONSTITUTION: Phase information generated from a motor having a plurality of phases is sensed(S1). The phase information is converted according to the sensed information(S2). A rotary speed of a motor operating according to the converted information is measured(S3). When the measured rotary speed is less than a predetermined value, the sensed phase information is reverse converted(S4,S5). In case of measuring the rotary speed after reverse converting the phase information of the motor(S6), a reverse conversion operation of the phase information is repeated when the rotary speed is less than the predetermined value(S7).
Patent KR-20030060019-A (KR)
Inventor: LEE JU HAENG
IPC: G06T11/20
Filed: 2002-01-05
Abstract: PURPOSE: A method for smoothing the contour of a geometrical figure using a terminal is provided to define and process a smoothing operation with respect to the contour of a given geometrical figure using sweep and unsweep operations. CONSTITUTION: A region of a geometrical figure whose contour to be processed is set. A smoothing factor that indicates a degree of smoothness of the contour is determined. A smoothing process is applied to the contour of the geometrical figure to smooth the contour. The smoothing process includes a step of applying a concave smoothing process to the contour when the contour is a concave region to smooth the contour, and a step of applying a convex smoothing process to the contour when the contour is a convex region to smooth the contour.
Patent KR-20020064150-A (KR)
Title: Clip For Mounting The Goods
Inventor: KO CHEOL GYU
IPC: F16B5/12
Filed: 2002-01-11
Abstract: PURPOSE: A mounting clip is provided to mount/separate articles to/from a structure in a firm and easy manner. CONSTITUTION: A mounting clip(1) comprises a base member(3) which is shaped as a plate and has a coupling hole(3a) to be coupled to an article; a pair of flanges(5) extended at both ends of the base member, in a horizontal direction with respect to the lengthwise direction of the base member; a pair of insertion portions(9) extended and bent upward from both edges of the base member, and which face and contact with each other at a predetermined height; and a pair of stopper plates(11) which are cut out and protruded downward from the near central region of each insertion portion, and have free ends with stepped portions(13) having inward bent sections(15) and outward bent sections(17), respectively. Each stopper plate has a pair of blades(19) which are protruded downward from both edges of the free ends of the stopper plate.
Patent KR-20020065367-A (KR)
Inventor: KIYOSE MASASHI
IPC: H03L7/07
Filed: 2002-02-04
Abstract: PURPOSE: To provide a PLL circuit which can generate a clock synchronized with a signal by which synchronization is hardly obtained owing to its low pulse frequency under a status where the signals of mutually different frequencies coexist. CONSTITUTION: A system clock generating part 100 generates a system clock CLK based on a wobble signal and an LPP signal. At first, PLL performs control to synchronize the output signal of a VCO 132 with the wobble signal. The output of the VCO 162 is controlled to be nearly synchronized with the wobble signal through the use of the control signal of the VCO 132. Moreover, the output signal of the VCO 162 is finely adjusted by a signal corresponding to a difference between the output signal of the VCO 162 itself and the LPP signal.
Patent KR-20020023398-A (KR)
Inventor: JUNG SU HUN
IPC: B08B9/08
Filed: 2002-02-06
Abstract: PURPOSE: A movable multi-functional cleaner for liquid storage tank is provided to prevent cease of cleaning work during chip cleaning or chip replacement by automatically cleaning chip and sludge adhered to a filter by a brush roller. CONSTITUTION: A movable multi-functional cleaner for liquid storage tank includes a chip removing portion on one side of its upper portion, a specific gravity separating portion(3) on the other side of its upper portion, and a suction pump on its lower portion. On one side of the chip removing portion is installed a fixed body(4) connected with an inlet pipe(4-1). A longitudinal outlet hole(4-2) is formed under an empty room(4-3) of the fixed body. The outlet hole is connected with a plurality of through holes formed on a rotation body(5) inserted into the fixed body. Under the rotation body is formed a supporting stage(2-1) in which a suction pipe(8-1) of a vacuum pump(8) is connected with a receiving room(2-3), and a filter(7-2) is wound around a coaxial roller(7) and an idling roller(7-1). A brush roller(9) is in contact with the idling roller.
Patent KR-20030068870-A (KR)
Title: A manufacturing method of kimchi for children
Inventor: KIM YONG DOO
IPC: A23B7/10
Filed: 2002-02-18
Abstract: PURPOSE: A manufacturing method of kimchi for children is provided, thereby preparing kimchi having plentiful nutrients, low acidity, and low fermentation smell. Therefore, children can easily eat the kimchi. CONSTITUTION: A manufacturing method of kimchi for children comprises the steps of: preserving leaf-removed mustard in 3 to 7% salt solution for 2 to 8 hours, and washing it with water for 20 to 60 minutes; dipping the salted mustard in a mixture of paprika, Welsh onion, garlic, hot pepper, ginger, salt and water, and fermenting them at room temperature for 2 to 7 days; mixing the fermented mustard with a seasoning consisting of vinegar, oligosaccharides, glucose, sorbitol, salt and water, adding pickle perfume into the mixture and maturing them for 15 days; and inserting the matured mustard into a vinyl plastic bag, followed by sealing and heating at 70 to 90 deg. C for 5 to 30 minutes.
Patent KR-20020081543-A (KR)
Inventor: HIRAI AKIRA
IPC: G09F9/30
Filed: 2002-02-27
Abstract: PURPOSE: A method and device for matching substrates are provided to accurately and reliably match two substrate in a short time, even for a large substrate. CONSTITUTION: When two substrates(33,34) are matched together with mechanical pressurizing force in a vacuum chamber, pressurization mechanisms(16) which pressurize the vicinities of four corner parts of the square substrates are respectively provided, the gap between the substrates is observed after pressurizing the vicinities with the predetermined pressurizing force, and the vicinities are pressurized after adjusting the pressurizing force of each pressurization mechanism based on the observation.
Patent KR-20030071238-A (KR)
Title: Mobile communication data service system in advanced mobile phone and method thereof
Inventor: OH SEONG HUN
IPC: H04B1/40
Filed: 2002-02-28
Abstract: PURPOSE: A wireless mobile communication data service device in a W-CDMA(Wideband Code Division Multiple Access) mobile communication terminal and a method therefor are provided to smoothly offer a moving picture and multimedia service function without expanding the size of an LCD by selectively using the LCD and a hologram unit. CONSTITUTION: An RF(Radio Frequency) unit(2) loads voice and image data into a carrier frequency within a use frequency band, and transmits the carrier frequency through an antenna. The RF unit(2) receives a frequency into which data are loaded, which is transmitted from a base station. A baseband unit(3) modulates and demodulates the data outputted from the RF unit(2), and performs D/A(Digital/Analog) and A/D conversion. A control unit(4) selectively controls a switching unit(8), for spreading/despreading the voice and image data, vocoding the voice data, and listening to a voice through an earpiece. A memory unit(5) stores specific programs necessary for performing the operation of a mobile communication terminal. A key input unit(6) outputs corresponding intrinsic key data to the control unit(4) according to an input state of each key. A codec(7) performs the PCM(Pulse Code Modulation) of an analog signal such as the voice or image data to convert the analog signal into a digital bit stream suitable for transmission. The codec(7) converts a digital signal into an analog signal, and transmits the analog signal to the control unit(4). The switching unit(8) selects an LCD(9) or a hologram unit(10) when a user selects an initial menu in the mobile communication terminal. The LCD(9) displays a current state of the mobile communication terminal. The hologram unit(10) demodulates and despreads inputted image data, and recovers original image data.
Patent KR-20030081746-A (KR)
Title: Fuel supplying device of rotary engine
Inventor: KIM DONG HYUN
IPC: F02B53/10
Filed: 2002-04-12
Abstract: PURPOSE: A fuel supply device of a rotary engine is provided to allow the rotary engine to be used as a diesel engine by adding a simple configuration to the rotary engine. CONSTITUTION: A fuel supply device comprises an actuator(30) arranged at a side of an intake/exhaust hole(8) of a rotor(14), wherein the actuator includes an operating piece(22) contacting the head of the actuator, a compression rod(24) which returns to the initial position by a compression spring(44) and compresses a compression chamber connected to a fuel supply pipe and a check valve(32), and an open/shut valve(26) interposed between the compression chamber and the intake/exhaust hole which opens/shuts an injection hole by using the pressure; and a protrusion(34) protruded from the inner surface of a housing(6) of a rotary engine, which operates the operating piece of the actuator passing through the fuel injection section.
Patent KR-20030083164-A (KR)
Title: Vesicles with high anti-bacterial activity
Inventor: KIM JIN CHEOL
IPC: A61K8/40
Filed: 2002-04-19
Abstract: PURPOSE: Provided is a vesicle with high anti-bacterial activity which is excellent in inclusion rate, residual property after washing and antibacterial property. CONSTITUTION: A vesicle with high anti-bacterial activity is characteristically manufactured by the steps of; (a) dissolving amphiphilic ammonium salt and fatty acid in a mixed solvent of alcohol and water, wherein antibacterial compounds are additionally dissolved; and (b) evaporating alcohol from the dissolution.
Patent KR-20030083870-A (KR)
Title: multi clock domain data input processing device having clock receiving locked loop and method for providing clock signals therefore
Inventor: JUNG DAE HYEON
IPC: G11C7/10
Filed: 2002-04-23
Abstract: PURPOSE: A multi clock domain data input processing unit is provided which has a clock receiving synchronization circuit like a PLL(Phased Locked Loop) or a DLL(Delay Locked Loop), and a method for applying a clock signal according thereto is also provided. CONSTITUTION: According to the data input processing unit(200B), a clock receiving synchronization circuit generates an output clock signal by delaying a phase of the first clock signal. A data input part inputs applied data, in response to the first clock signal and the second clock signal applied with a different timing from the first clock signal for receiving clock conversion. And an input processing part(218) processes the data being output from the data input part using the output clock signal of the clock receiving synchronization circuit and the second clock signal.
Patent KR-20030087156-A (KR)
Title: An Apparatus for Reducing Vibration In Breaking Automobile
Inventor: SO UI SEOP
IPC: F16D55/224
Filed: 2002-05-07
Abstract: PURPOSE: A device for reducing vibration in braking of a vehicle is provided to make the position of a caliper assembly varied according to the thermal deformation degree of a disk plate by movably installing the caliper assembly with a pair of pads to a knuckle. CONSTITUTION: A device for reducing vibration in braking of a vehicle comprises a knuckle(1); a disk plate(2) combined to the knuckle, to rotate together with wheels; a caliper assembly(3) mounted to the knuckle, to make a pair of pads(5) be in face contact with the disk plate according to the pressing motion of a brake pedal; and bolts(4) to mount the caliper assembly to the knuckle. A pivot(6) is formed to the knuckle into which the bolt is inserted. Elastic members(7a,7b) are disposed to the sides of the bolt fitted into the pivot.
Patent KR-20030087355-A (KR)
Title: Laser Beam Homogenizing Apparatus and Method using a Division-Combination Method
Inventor: CHA BYEONG HEON
IPC: G02B27/10
Filed: 2002-05-08
Abstract: PURPOSE: An apparatus and a method for homogenizing laser beam by using a split-recombination method are provided to increase the homogeneity by compensating the movement of a center axis between the superposed beams. CONSTITUTION: An apparatus for homogenizing laser beam by using a split-recombination method includes a beam splitter(1), the first prism(2), the first and the second total reflection mirrors(4,5), the second prism(3), and a beam refractor(6). The beam splitter(1) is used for dividing the incident beam(7) into the first and the second beams(9,8). The first beam(9) penetrates the beam splitter(1) and the second beam(8) is reflected by the beam splitter(1). The first prism(2) is used for dividing the second beam(8) into the third and the fourth beams(10,11). The first and the second total reflection mirrors(4,5) are used for inverting the waveform of the third beam(10) and the waveform of the fourth beam(11). The second prism(3) is used for recombining the inverted beams(12,13). The beam refractor(6) is used for transmitting the recombined beam(14), reflecting the recombined beam(14) by means of the beam splitter(1), supposing the reflected beam on the first beam(9), and adjusting a center axis of the supposed beam(15) to the center axis of the first beam(9).
Patent KR-20060079853-A (KR)
Inventor: LEE SANG JUN
IPC: B65D81/05
Filed: 2002-05-10
Abstract: 본 발명은,  제품의 충격의 완화 및 제품의 위치 고정을 위하여 종래의 스티로폼 대신 골판지를 이용하는 선풍기의 포장용기에 관한 것이다. 
     본 발명에 의한 골판지를 이용한 선풍기의 분리포장용기는, 직육면체 모양의 선풍기 포장용박스(50)를, 장축(A)의 한편에 위치하고 상기 장축에 수직인 제 1 격벽과 포장용박스(50) 내측면에 의해 형성되는 선풍기의 베이스(10)가 수용되는 베이스 수납공간(1); 상기 포장용 박스(50)의 중앙에 각각 상기 제1 격벽과 수직이 되게  서로 일정거리를 두고 있는 제 2 격벽(120)과 제 3 격벽(130)으로 형성되는 지주가 수용되는 지주수납공간(2); 상기 지주수납공간(2)의 상측의 제 3 격벽(130)과 포장용 박스(50)의 상측 내측면에 의해 형성되는 안전망(40)이 들어가는 안전망 수납공간(3); 그리고, 상기 지주수납공간(2)의 하측의 제 2 격벽과 제 2 격벽과 평행인 제 4 격벽(140)에 의해 형성되는 모터회전날개(30)가 들어가는 모터회전날개 수납공간(4)으로 골판지에 의해 구획된다.  
       
     골판지, 모터 회전 날개, 안전망, 베이스, 지주
Patent KR-20020087361-A (KR)
Title: Inner insulation for electroacoustic capsules
Inventor: PAVLOVIC GINO
IPC: H04R19/04
Filed: 2002-05-14
Abstract: PURPOSE: Inner insulation for electroacoustic capsules is provided to obtain very reliable electrical insulation without having to use a separate component and without requiring a separate manufacturing step. CONSTITUTION: An electroacoustic transducer, operating electrostatically and functioning as a sound receiver and configured to be inserted into a microphone capsule, the transducer comprising: a capsule housing(11) having an inner side and an outer side, wherein at least the inner side of the capsule housing(11) has a Teflon(R) coating. In the transducer the capsule housing(11) has an end face and the end face forms an electrode of the transducer, is manufactured by a cold forming method from an aluminum sheet, coated at least on one side with Teflon(R). And the Teflon(R) coating(12) has a thickness of 10 to 50 micrometer.
Patent KR-20030089853-A (KR)
Title: break pedal of vehicle
Inventor: PARK MIN SU
IPC: B60T7/06
Filed: 2002-05-20
Abstract: PURPOSE: A brake pedal of a vehicle is provided to improve the durability by preventing a pedal plate member from being separated from a rubber plate member at wear of a pad projection, and to increase the productivity by improving convenience with extending the life span. CONSTITUTION: A brake pedal for a vehicle comprises a pedal plate member(231) curved and mounted to the end of a brake pedal arm(12); a rubber pad member(233) curved and contacted to the front of the pedal plate member and composed of plural pad projections(233a) arranged and spaced from one another without cavities; and a pad cover member(235) having plural projection holes(235a) penetrated by pad projections, and upper and lower flanges(235b,235c) partially supporting the back of the pedal plate member overlapped with the rubber pad member.
Patent KR-20020063530-A (KR)
Inventor: KIM BYUNG KYU
IPC: C01G21/02
Filed: 2002-05-24
Abstract: PURPOSE: A simple preparation method of perovskite Pb-based composite oxide powder, Pb(Fe1/2Nb1/2)O3, for electronics is provided, which restrains formation of intermediate of pyrochlore phase, and produces crystalline powder at low temperature by a liquid columbite method under supercritical fluid state. CONSTITUTION: The preparation method of (Pb(Fe1/2Nb1/2)O3) powder is characterized by feeding Pb compound and ethanol, supercritical liquid, into an inner vessel, and feeding Nb compound and ethanol into an outer vessel in autoclave, followed by supercritical reacting over 243deg.C for 2hrs and more. The Pb compound is one selected from lead acetate, lead butyrate, lead hydroxide, lead oxalate, etc. The Nb compound is one selected from iron acetate, iron acetylacetonate, iron oxalate hexahydrate, etc. The Nb compound is one selected form niobium ethoxide and niobium oxides(NbO, NbO2, and Nb2O5)). The supercritical liquid is one selected from water ethanol, methanol, propene, benzene, propylene, etc.
Patent KR-20030091544-A (KR)
Title: A wireless microphone receiver using dual antenna
Inventor: KIM IN HO
IPC: H01Q5/00
Filed: 2002-05-28
Abstract: PURPOSE: A receiving apparatus of a wireless microphone using a dual antenna is provided to improve the receive sensitivity by synthesizing a strong antenna signal and a weak antenna signal using a space diversity to reduce the level change of a receive signal due to a fading phenomenon. CONSTITUTION: A receiving antenna unit includes a plurality of receiving antennas, a plurality of low-noise RF(Radio Frequency) amplifiers(303,304), and an in-phase hybrid(305). The plurality of receiving antennas receive high frequency signals from a transmitting device of a wireless microphone. The plurality of low-noise RF(Radio Frequency) amplifiers(303,304) amplify the high frequency signals received from the plurality of receiving antennas. The in-phase hybrid(305) synthesizes output signals of the plurality of low-noise RF(Radio Frequency) amplifiers(303,304) using a space diversity.