baber/WOPTO huggingface dataset:
Patent KR-20040049611-A (KR)
Title: Apparatus for supply the cool air of refrigerator
Inventor: CHOI YUN CHEOL
IPC: F25D17/08
Filed: 2002-12-06
Abstract: PURPOSE: An apparatus for controlling cold air supply in a refrigerator is provided to improve the cooling efficiency of a home-bar inside by controlling a supply amount of cold air. CONSTITUTION: A cold air supply path is formed to guide cold air generated by a cooling device into a freezing chamber(10), being communicated with the freezing chamber and a refrigerator compartment(20). A refrigerator compartment damper is formed in the cold air supply path to open and shut the cold air supply path. A home-bar passage(133) guides the cold air to be moved into a home-bar(42) through a suction port(42a) formed on one side of the home-bar. A home-bar damper is formed in the home-bar passage to open and shut the home-bar passage. A sensor is mounted in an inner space of the home-bar to measure an inner state of the home-bar and generate a detecting signal.
Patent KR-20040055120-A (KR)
Title: A game method of continuing on/off-line using consol
Inventor: AHN JAE PIL
Filed: 2002-12-20
Abstract: PURPOSE: A method for continuously playing a game on on/offline using a peripheral device is provided to enhance the participation of a user by advancing the game data of all games advanced on online in a console. CONSTITUTION: The user(30) advances the game through the console(20) without connecting to a server(10). The data obtained from sensors embedded into the console is converted into the online data in order to apply the data to a game algorithm. The user exchanges a match and an item with the console of other user without the server. A result value of an event generated in the console is transmitted to the online through the network. When the console is connected to the online, a program and a product are certified by an encrypted certification code embedded into the console.
Patent KR-20040056323-A (KR)
Title: Eccentric abration prevention apparatus of power brush for crane
Inventor: KIM EON SIK
IPC: B66C13/00
Filed: 2002-12-23
Abstract: PURPOSE: A dust brush is contacted to a trolley, and a buffering member is provided to support the brush to prevent eccentric wearing and contact failure. CONSTITUTION: A dust collecting brush(12) is fixed by a support member(11) in lower surface of a base(10). A rotation member(20) rotates the dust collecting brush by the movement of a crane. A buffering member(30) is provided between the support member and the base to reduce impact to the dust collecting brush and to maintain contact between the dust collecting brush and the trolley. A dust removing member is provided to remove dust in upper part of the trolley.
Patent KR-20040057279-A (KR)
Title: Join Construction for Joiner and Frame of Window
Inventor: LEE YONG HAE
IPC: E06B3/96
Filed: 2002-12-26
Abstract: PURPOSE: A fixing structure for a window frame and a joiner is provided to improve assembling efficiency for a window frame and a joiner, to increase the binding strength of a window frame and a joiner and to improve the convenience on work. CONSTITUTION: The fixing structure of a window frame and a joiner comprises: a horizontal window frame(10) provided with central horizontal fastening holes(12a,12b) formed in the central lower part of a glass supporting plane, a left horizontal fastening hole(13a) formed on the left end of the bottom, and a right horizontal fastening hole(13b) formed on the right end of the bottom; a vertical window frame(20) provided with central vertical fastening holes(22a,22b) formed in the central lower part of a glass supporting plane, left vertical fastening holes(23a) formed on the left end of the bottom, and a right vertical fastening hole(23b) formed on the right end of the bottom; and a joiner(30) provided with fastener inserting grooves(32a,32b), a left fastener inserting groove(31a) and a right fastener inserting groove(31b).
Patent KR-20040059585-A (KR)
Inventor: KANG DONG HEON
IPC: C09K3/14
Filed: 2002-12-27
Abstract: PURPOSE: A slurry composition for polishing of metal is provided to prevent the edge of wafer from being over-polished to ensure an evenly polished surface and thereby increasing the yield of a cell positioned on the edge of wafer. CONSTITUTION: The slurry composition for polishing of metal comprises (a) a fine-powdered metal oxide; (b) an oxidizing agent; (c) a chelate complex; (d) a glycol; (e) a pH control agent including a quaternary ammonium base and acid; and (f) ultra pure water. The quaternary ammonium base is one selected from the group consisting of tetramethylammonium hydroxide, tetraethylammonium hydroxide and tetrapropylammonium hydroxide. The pH of slurry composition is appropriately controlled by adjusting the amount of the quaternary ammonium base and the acid, depending on the metal to be polished.
Patent KR-20040058966-A (KR)
Inventor: PARK GI YEOP
IPC: G03F7/00
Filed: 2002-12-27
Abstract: PURPOSE: An immersion lithography method is provided, to improve the resolution by short wavelength and to reduce the pollution of wafer stage, lens surface and wafer back side. CONSTITUTION: The immersion lithography method comprises the steps of coating photoresist(12) on a target layer(10); coating an immersion layer(14) on the photoresist layer; exposing it; removing the immersion layer; and developing it to remain the photoresist selectively. Preferably the immersion layer is a mixture of organic materials or inorganic materials having a refractive index to the exposure light which is greater than 1 and is smaller than that of the photoresist. Preferably the immersion layer has a refractive index to the exposure light of 1.0-2.0. The immersion layer is spin coated with a rotation velocity of 500-5,000 rpm and with a thickness of 1-10,000 micrometers, and is removed by using deionized water or a tetramethyl ammonium hydroxide aqueous solution.
Patent KR-20040061298-A (KR)
Title: Method for fabricating a semiconductor device
Inventor: KIM HAK DONG
IPC: H01L29/78
Filed: 2002-12-30
Abstract: PURPOSE: A method for fabricating a semiconductor device is provided to obtain a desired threshold voltage of PMOS and NMOS devices and to make an integrated semiconductor device easily maintain a quality of a predetermined level or higher by making the channel lengths of the PMOS and NMOS devices maintain a desired effective value regardless of a diffusion rate of each impurity. CONSTITUTION: Separate spacers are formed to have different sizes before a series of impurities are implanted into a P-type LDD(lightly doped drain) formation region and an N-type LDD region. The state of the impurities implanted into each LDD formation region are arbitrarily controlled based upon the spacers of different sizes. The lengths of reserved channels of the PMOS and NMOS devices are so guided to be selectively controlled, and a substantial annealing process is performed. The channel lengths of a finally-fabricated PMOS and NMOS devices are efficiently controlled even if p-type impurities are rapidly diffused as compared with n-type impurities due to a structural difference of the p-type and n-type impurities.
Patent KR-20020026352-A (KR)
IPC: G10D9/02
Filed: 2000-08-04
Abstract: 본 발명은 제조하고자 하는 마우스피스 본체(2)의 소망 특성을 파악하여, 제 1 특성을 갖는 다공질의 세라믹재와 제 2 특성을 갖는 아크릴수지를 준비하고, 세라믹재에 아크릴수지를 함침·고체화시켜, 제 1 특성, 제 2 특성 및 함침 비율중 적어도 하나를 조정함으로서 마우스피스 본체(2)를 제조한다. 이로서 어느 용도에 있어서 만족할 수 있는 특성을 갖는 세라믹 제품을 확실히 제조 가능하게 한다.
Patent KR-20020029932-A (KR)
IPC: H02G5/08
Filed: 2001-01-19
Abstract: 공장내 및 현지에서의 가스처리작업을 줄이고, 작업의 간소화, 공정의 단축화가 도모되는 모선용기, 그 조립방법 및 그 모선용기를 사용한 가스절연개폐장치이다.  용기(101)와 용기(102)를 접속할 때는 자동연결(플러그인타입) 가능한 구면형의 도체(103)를 접촉자(102f)와 접촉시켜 고정하여 두고, 용기(101)를 용기(102)에 근접시켜 도체(103)를 접촉자(101f)와 접합시킨다.  접속전, 밸브(108)는 스프링 (109)의 힘에 의해 중심도체(102e)와 밀착하고 있으나, 용기(101)와 용기(102)를 근접시켜 가면, 밸브(108)의 선단은 중심도체(101e)와 접촉하고, 스프링(109)은 수축되어 밸브(108)와 중심도체(102e)는 떨어져 중심도체(102e)에 설치한 구멍으로부터 용기(102)내의 고압력의 절연가스가 접합부(107)에 있는 공기를 플랜지(101a 와 102a)가 접속하기 전에 용기밖으로 밀어 내어 접합부(107)는 절연가스로 충전된다.
Patent KR-20020059413-A (KR)
IPC: C07K14/705
Filed: 2000-09-22
Abstract: 본 발명은, 각각 링커 영역에 의해 결합되는, 2개 이상의 핵산 또는 폴리펩티드 도메인을 포함하는 DNA, RNA 또는 단백질 분자의 생성을 위한 방법 및 조성물을 개시한다.  본 방법을 사용하여 이중-도메인 또는 다중-도메인 폴리펩티드를 코딩하는 핵산의 랜덤 링커 라이브러리를 생성한다.  링커 영역은 길이 및 서열 둘 모두의 변이성을 그 특징으로 한다.
Patent KR-20020042865-A (KR)
IPC: G02B6/036
Filed: 2000-09-15
Abstract: 감소된 벤딩 손실을 갖는 약 1300nm 내지 1700nm 사이의 파장범위에 거쳐 보다 확장된 전송 밴드를 제공하는 단일모드 광섬유 도파관이 개시된다. 상기 섬유의 확장된 파장범위는 MAC 수, 모드필드직경(MFD) 및 컷오프 파장과 같은 섬유의 광특성을 변경하여 달성될 수 있다. 단일모드 섬유는 광섬유 도파관의 맥 수를 변경하여 저 MFD 와 고 컷오프 파장을 보일 수 있다. 또한, 광섬유 전송 시스템, 파장분할 멀티플렉싱(WDM) 시스템, 그리고 광섬유 리본 케이블은 본 발명에 따른 단일모드 광섬유와 결합된다.
Patent KR-20020053859-A (KR)
IPC: C09D5/44
Filed: 2000-08-21
Abstract: 본 발명은 먼저, 수지성 부분으로서 0℃ 이하의 유리전이온도를 갖는 폴리우레탄 중합체와 선택적으로 반응성 작용기를 가진 제 2성분을 가진 내충격성 프라이머 조성물의 층을 기판에 코팅하고; 다음으로, 0℃ 이하의 유리전이온도를 갖는 폴리우레탄 중합체, 유리전이온도가 폴리우레탄의 유리전이온도 보다 약 20℃ 큰 아크릴 중합체, 및 폴리우레탄 중합체와 아크릴 중합체 중 하나 이상과 반응성인 가교 성분을 포함하는 열경화성 프라이머 조성물의 층으로 코팅하며; 마지막으로, 탑코트 조성물의 하나 이상의 층을 코팅하는 방법을 제공한다.  제 2성분의 반응성 작용기는, 내충격성 프라이머 조성물 중의 폴리우레탄 중합체, 열경화성 프라이머 조성물 중의 폴리우레탄 중합체, 열경화성 프라이머 조성물 중의 아크릴 중합체 및 이들의 조합으로 구성된 군으로부터 선택된 하나 이상의 중합체와 반응한다.
Patent KR-20020065563-A (KR)
Title: Safety device for a hammer in a fire arm
IPC: F41A17/74
Filed: 2000-11-28
Abstract: Safety devices for use with a handheld firearm are disclosed. The safety devices include a lever that can be pivoted into the travel path of the hammer of the firearm to preclude the hammer from striking a firing pin. In an example, the lever is connected to the trigger such that the safety device is released when the trigger is pulled. In another example, the lever protrudes into the magazine shaft of the firearm such that the safety device is only released when a magazine is inserted into the shaft.
Patent KR-20020067558-A (KR)
Title: 디페닐 에테르 화합물의 제조 방법
IPC: C07C201/08
Filed: 2000-12-11
Abstract: 본 발명은 (a)아시플루오르펜을 이의 산 클로라이드로 전환시키는 단계, (b)이렇게 얻은 산 클로라이드를 메탄설폰아미드(MSAM)와 커플링시켜 조 포메사펜을 얻는 단계 및 (c)조 포메사펜을 정제하는 단계를 포함하고 각 단계는 단일 통상 용매, 바람직하게는 싸이클로알칸내에서 실행하는 것을 특징으로 하는, 아시플루오르펜으로부터 포메사펜을 제조하는 방법에 관한다.   각 단계는 포메사펜이 얻어질때까지 어떤 단계의 생성물도 분리함 없이 함께 축적해 가는 것이 바람직하다.
Patent KR-20020062999-A (KR)
IPC: C07C51/43
Filed: 2000-12-27
Abstract: 본 발명은 디아민 염 및 카르복실산 염의 제조 방법에 관한 것이다.     본 발명은 또한 더욱 특히 불용성 상태의 이 형태의 염에 관한 것이며, 상세하게는 고체 헥사메틸렌 디아민 아디페이트 염의 제조에 관한 것이다.     상기 방법은 초음파 교반으로 용액으로부터 디아민 염을 결정화하는 것으로 구성된다.     수득된 결정은 더욱 압축된 형태 및 상당한 시각적 결함이 없는 부드러운 표면을 갖는다.
Patent KR-20030036138-A (KR)
IPC: A61P9/12
Filed: 2001-02-09
Abstract: 본 발명은 하기 화학식 I의 화합물 또는 그의 제약상 허용되는 염 또는 용매화물, 및 그의 제조 방법, 상기 제조에 사용되는 중간체, 이를 포함하는 복합체, 및 이들 화합물의 아데노신 A2a 수용체 작용제로서의 용도에 관한 것이다. 
     <화학식 I>
Patent KR-20030011076-A (KR)
Title: Bit interleaved coded modulation(BICM) mapping
IPC: H03M13/00
Filed: 2001-12-14
Abstract: Described is a transmission system for transmitting a multilevel signal (xk) from a transmitter (10) to a receiver (20). The transmitter (10) comprises a mapper (16) for mapping an input signal (ik) according to a signal constellation onto the multilevel signal (xk). The receiver (20) comprises a demapper (22) for demapping the received multilevel signal (yk) according to the signal constellation. The signal constellation comprises a number of signal points with corresponding labels. The signal constellation is constructed such that Da>Df, with Da being the minimum of the Euclidean distances between all pairs of signal points whose corresponding labels differ in a single position, and with Df being the minimum of the Euclidean distances between all pairs of signal points. By using this signal constellation a significantly lower error rate can be achieved than by using a prior-art signal constellation.
Patent KR-20030021165-A (KR)
IPC: C09B62/513
Filed: 2001-05-16
Abstract: 본 발명은 하기 화학식 I의 반응성 아조 염료 또는 이의 알칼리 금속 염, 이 염료를 제조하는 방법 및 이 염료를 섬유재에 적용함을 포함하는 섬유재의 착색 방법에 관한 것이다: 
     화학식 I 
     
       
     
     상기 식에서, 
     A는 하기 화학식 i 또는 ii의 기이고; 
     C는 임의로 치환된 방향족 또는 헤테로방향족 잔기이고, 
     R 1 , R 2 , B, D, Y, a, b, c, d 및 n은 청구범위 제 1 항에서 정의된 바와 같다: 
     화학식 i 
     
       
     
     화학식 ii 
     
       
     
     [상기 식들에서, 
     c, d 및 Y는 청구범위 제 1 항에서 정의된 바와 같다].
Patent KR-20030020886-A (KR)
IPC: A61F13/15
Filed: 2001-06-13
Abstract: 본 발명은 폴리올레핀 수지로 이루어지고, 평균 섬유지름이 5 내지 60㎛이며, 기본중량이 5 내지 200g/m 2 이고, 정마찰 계수가 0.1 내지 0.4인 스펀본드 부직포; 또는 폴리프로필렌계 수지 스펀본드 부직포로서, 강연도[JIS L 1096 6.19.1 A법(45° 캔틸레버법)에 따라서 측정한 가로ㆍ세로의 합계]가 70 내지 120mm이며, 정마찰 계수가 0.1 내지 0.4인 스펀본드 부직포에 관한 것이다.
Patent KR-20030029530-A (KR)
IPC: A61K33/00
Filed: 2001-06-22
Abstract: 본 발명은 포유류내에서의 산화질소(NO) 흡입 관련 HPV의 약화를 감소, 부분적으로 방지 또는 완전히 방지하는 방법에 관한 것이다.  이 방법은 산화질소의 치료 유효량을 흡입에 의해 투여하고, 항반응성 산소종(안티 ROS제), 예를 들어, N-아세틸시스테인 또는 류코트리엔 블록커의 유효량을 보조 투여하는 것으로 되어 있다.  또한, 본 발명은 포유류내의 산화질소 흡입에 대한 폐혈관 확장 응답의 손실을 감소, 부분적으로 방지 또는 완전히 방지하는 방법에  관한 것이다.  이 방법은 NO의 치료 유효량을 흡입에 의해 투여하고, 안티 ROS제의 유효량 또는 류코트리엔 블록커의 치료 유효량을 보조 투여하는 것으로 되어 있다.
Patent KR-20040064932-A (KR)
Inventor: CHO NAM JUNG
IPC: A47J37/06
Filed: 2003-01-11
Abstract: PURPOSE: A device for automatically roasting stockfish is provided to reduce roasting time by feeding and roasting the upper and lower faces of the stockfish simultaneously. CONSTITUTION: A device for automatically roasting stockfish is composed of a first feed guiding unit(10) having a drive conveyor(11) and an interlocking conveyor(12) for feeding stockfish, a heating unit(20) having heaters(21,22) for heating the stockfish, a second feed guiding unit(30), a first processing unit(40), and a second processing unit(50). The second feed guiding unit has a feed conveyor(31) for feeding the roasted stockfish, and a lifting cylinder(33) for moving the feed conveyor up/down. The first and second processing units process the stockfish fed downward and upward, respectively.
Patent KR-20040066350-A (KR)
Inventor: KIM BYEONG SU
IPC: G08G1/0969
Filed: 2003-01-17
Abstract: PURPOSE: An apparatus and a method for controlling a vehicle navigation system are provided to reduce a communication charge by commonly using a communication module of a PDA(Personal digital Assistant). CONSTITUTION: A vehicle navigation system is provided on a vehicle(42). The vehicle navigation system is provided with a telematics function and receives GPS(Global Positioning System) signals from a GPS satellite(39). The GPS signals contain information provided from a vehicle information center(33). The vehicle information center receives traffic information from contents providers(30). The traffic information is provided from the vehicle information center to the vehicle navigation system through a base station(36), a mobile terminal, and the GPS satellite. The mobile terminal is a PDA manufactured by a terminal provider(45).
Patent KR-20030074130-A (KR)
Title: 신축붐
IPC: B66F9/08
Filed: 2003-01-27
Abstract: 본 발명의 과제는 길다란 신축붐에 적용할 수 있는 케이블받이의 부착구조를 구비한 신축붐을 제공하는 것이다. 
     상기의 과제를 해결하는 수단으로서 본 발명은 신축붐에 있어서, 신축수단에 의해 신축가능한 복수의 붐을 구비하며, 굴곡이 가능한 케이블받이를 N단째 붐과 N+1단째 붐에 걸쳐, 한끝을 N단째 붐에 고정하고, 구부려서 다른 끝을 N+1단째 붐에 고정함과 아울러 케이블받이의 굴곡방향이 수평방향이 되도록 케이블받이를 설치한 것을 특징으로 하는 신축붐.
Patent KR-20040068735-A (KR)
Inventor: LEE BAEK UN
IPC: G02F1/133
Filed: 2003-01-27
Abstract: PURPOSE: An LCD(Liquid Crystal Display) driving apparatus is provided to improve luminance and power efficiency of an LCD while maintaining color reproducibility. CONSTITUTION: An LCD driving apparatus of a gradation voltage generator(800), a video signal corrector(600), and a data driver(500). The gradation voltage generator generates a plurality of gradation voltages. The video signal corrector processes current video data based o a difference between the current video data and previous video data. The data driver selects a gradation voltage corresponding to the video data processed by the video signal corrector and applies the selected gradation voltage to pixels as a data voltage. The video data includes RGB video data items. The video signal corrector converts the RGB video data items into red, green, blue and white video data items and selects one of the RGB video data items and red, green, blue and while video data items based on the difference between the current video data and previous video data to supply the selected video data to the data driver.
Patent KR-20030019505-A (KR)
Inventor: CHO JAE UI
IPC: E04G23/02
Filed: 2003-01-28
Abstract: PURPOSE: A repair and reinforcement injecting device for a crack and a water leakage in a building is provided to prevent the continuous progress of a crack and a water leakage in an outer wall, a retaining wall, a ceiling, etc. and to repair/reinforce a wall firmly. CONSTITUTION: The repair and reinforcement injecting device(10) for a crack and a water leakage in a building comprises the steps of installing a compressor(22) in a case(20), coupling a filling pipe(30) provided with an inclined branch pipe(31) on the front side of the case(20), coupling a nipple(32) to the front end of the branch pipe(31), coupling a ball valve(40) in the rear of the branch pipe(31) of the filling pipe(30), coupling a coupling bar(26) unified with a stopper(25) on a shifter(23) installed to an inner spring(24) of the case(20) through a coupling hole(27), forming a hanging projection(28) on the inner end of the stopper(25), and forming hanging grooves(29) on the surface of a cap(21) to be separable and combinable mutually.
Patent KR-20030065394-A (KR)
Title: 기판처리장치 및 기판처리방법
IPC: H01L21/00
Filed: 2003-01-29
Abstract: 암모니아 및 산화제를 함유하는 전처리(前處理)액과 기체가 혼합되어 생성된 액적을 기판의 표면에 충돌시키는 전처리부(68)와, 기판의 표면에 에칭액을 공급하는 에칭액 공급부(7)를 구비한 기판처리장치. 산화제는, 예를 들면, 과산화수소수이다. 전처리부(68)는, 전처리액의 액적을 생성하고, 상기 액적을 기판의 표면에 분사하는 2유체노즐이라도 좋다.
Patent KR-20040069726-A (KR)
Inventor: JUNG TAE HWAN
IPC: F25D23/02
Filed: 2003-01-30
Abstract: PURPOSE: A storage container for a refrigerator is provided to secure a wider housing space and to prevent foods as a milk product contained in a casing from being excessively cooled by increasing sealability. CONSTITUTION: A storage container installed in a refrigerator is composed of a casing(20) forming a predetermined housing space and having an opening unit(21) for receiving articles; a cover(30) for opening and closing the opening unit of the casing; a slider(35) for supporting the cover to movably open and close the opening unit of the casing with the cover; and a guide(25) disposed to the casing to guide that the slider slides from the front side formed with the opening unit of the casing to the rear side. The guides are in a pair and separated from each other at the upside of the casing. The sliders are arranged at the upside of the cover in a pair to slide with corresponding to each guide.
Patent KR-20040071400-A (KR)
Inventor: CHOI SEONG BONG
IPC: D06F39/00
Filed: 2003-02-06
Abstract: PURPOSE: A moving unit of a washing machine is provided to move the washing machine easily, and to prevent wear and vibration from the washing machine by combining an inner roller with an outer roller in a roller assembling part in the lower part of the washing machine. CONSTITUTION: A roller(50) is attached to a washing machine to move the washing machine easily and to prevent wear and vibration from the washing machine. The roller is mounted to the lower part of the washing machine, and composed of an inner roller(50b) made of material to prevent vibration from the washing machine and an outer roller(50a) made of material to restrict wear. The roller is combined with a roller assembling part(60) in the lower corner of the washing machine. The roller is formed by injection-molding the inner roller and injection-molding the outer roller in the outer periphery of the inner roller.
Patent KR-20040071497-A (KR)
Inventor: OH WON I
IPC: D04H1/498
Filed: 2003-02-06
Abstract: PURPOSE: A manufacturing method of high functional non-woven fabric having a three-layered structure is capable of maintaining physical properties and qualities and reducing a production cost in a post-finishing enterprise. The non-woven fabric is useful for shoes, gloves, general merchandise, a belt, a car seat and a ball. CONSTITUTION: High functional non-woven fabric is obtained by the steps of: (a first step) mixing nylon and polyester in a ratio of 40-60% : 60-40%; opening the mixed fiber closely in a breaker; ageing and carding the fiber to make web; cross-lapping the web with a conveyor belt to make sheets; setting scrim on the sheet, followed by bonding the scrim and the sheet to make a two-layered structure; setting web on the structure, followed by curved-surface punching the web and the structure to make a three-layered structure; thermosetting the structure to manufacture grey non-woven fabric; (a second step) infiltrating an acrylic resin into the non-woven fabric; dehydrating the fabric; drying first the fabric at 60-120deg.C; and then drying second the fabric at 170-180deg.C.
Patent KR-20040077279-A (KR)
Inventor: KIM HYEONG GWAN
IPC: H04L25/02
Filed: 2003-02-28
Abstract: PURPOSE: A preamble transmitter and receiver of a UWB(Ultra Wide Band) communication system and a transmitting and receiving method thereof are provided to apply an aperiodic sequence and a periodic sequence according to characteristics by dividing a preamble of a physical layer into a synchronous preamble and a channel estimation preamble. CONSTITUTION: A preamble transmitter of a UWB communication system includes a first preamble generator, a second preamble generator, and a transmitter. The first preamble generator(1300) is used for generating the first preamble as a synchronous preamble by using an aperiodic sequence having an aperiodic correlation characteristic. The second preamble generator(1310) is used for generating the second preamble as a channel estimation preamble by using the aperiodic sequence. The transmitter is used for multiplexing the first and the preambles and transmitting the multiplexed preambles as a preamble of the UWB communication system.
Patent KR-20040078832-A (KR)
Inventor: CHOI SI YEONG
IPC: H02J11/00
Filed: 2003-03-05
Abstract: PURPOSE: A load follower apparatus of grid connection type inverter for fuel cell power generation system is provided to prevent reverse power due to surplus power by computing and outputting a current load capacity to a fuel battery controller. CONSTITUTION: A fuel battery stack(110) receives fuel to generate DC(Direct Current) power according to a control signal outputted from a fuel battery controller(120). A system coupling type inverter(130) converts the DC power generated by the fuel battery stack into AC(Alternating Current power) so as to link it to a linkage system(150). An inverter controller(140) controls the operation of the system coupling type inverter. A first current detector(170) is connected between the system coupling type inverter and a load(160) and measures a current outputted from the system coupling type inverter to output it to the inverter controller. A second current detector(180) is connected between the linkage system and the load and measures a current flowing through the linkage system to output it to the inverter controller. A voltage detector(190) measures a voltage of the load to output it to the inverter controller.