baber/WOPTO huggingface dataset:
Patent KR-20020062357-A (KR)
IPC: A61L27/00
Filed: 2000-12-06
Abstract: 삽입형 안 렌즈(implantable ophthalmic lens)용 친수성 코팅이 개시된다.   안 렌즈의 에지 표면(edge surface)에 적용되는 코팅은 소수성 (메트)아크릴 폴리머 및 친수성 폴리머를 함유한다.   코팅은 수화시 에지 현휘(edge glare)를 감소시키거나 제거한다.
Patent KR-20020069221-A (KR)
Title: Novel piperidine and piperazine derivatives
IPC: C07D211/22
Filed: 2000-12-18
Abstract: The invention provides piperidine and piperazine derivatives of general formula (I), processes for their preparation, pharmaceutical compositions containing them, a process for preparing the pharmaceutical compositions, and their use in therapy
Patent KR-20030004316-A (KR)
IPC: G06Q40/00
Filed: 2000-12-19
Abstract: 본 발명은 모든 자산의 반복적이고 적응적인 통계 평가를 이용한, 부분 완전 인수(14), 부분 샘플 인수(34) 및 나머지의 추정가(40)에 의한 자산(12)의 그룹의 평가 방법(32)이다. 평가로부터 나온 통계 추정은 추정가를 생성하는데 적용된다.  자산은 데이터베이스(76)에 수집되어, 분류되고, 그들의 변수에 대한 비율과 개별적인 비율에 의해 분할된다.  그 다음, 자산은 입찰 그룹화에 따라 재 그룹화되고, 총체적인 평가가 이루어진다.  시뮬레이션된 입찰 시나리오는 입찰가의 조합에 대하여 결정하고, 위험 및 이익 산출에 따른 최적의 입찰가가 결정된다.
Patent KR-20020090213-A (KR)
Title: 초음파 터치 패널
IPC: G06F3/043
Filed: 2001-11-21
Abstract: 검출감도를 각각의 압전체로서 조정하는 일 없이, 접촉유무의 검출정도가 향상된 초음파 터치 패널을 제공한다. 압전체(2)의 빗 형상(comb-like) 전극에서 여자된 초음파 전파(propagate) 방향과 교차하는 측면(3)에 밀봉제(4)를 시행하여 초음파의 반사를 억제함으로서, 측면(3)에 전파된 초음파를 감쇄하고, 초음파의 반사에 의한 기생파의 발생을 억제한다.
Patent KR-20020081402-A (KR)
Title: 방해 방지 수단을 갖춘 아이들 셧다운 오버라이드의시스템 및 방법
IPC: F02B3/06
Filed: 2001-02-26
Abstract: 일정 시간 주기 동안의 아이들링 이후 엔진을 자동으로 정지시키도록 아이들 셧다운 특징을 지닌 전자 제어 모듈을 구비하는 압축 점화 내연 엔진(10)을 제어하기 위한 시스템 및 방법은 엔진(10)에 부하가 걸려있는지 여부를 결정하는 단계와 엔진(10)에 부하가 걸려있을 때 엔진(10)이 계속 주행하도록 하는 아이들 셧다운 특징을 오버라이딩시키는 단계를 포함한다. 일 실시예에서, 본 발명은 차량이 정지상태임을 결정하도록 작동 상황을 모니터링하는 단계, 엔진(10)이 아이들링임을 결정하도록 엔진(10)을 모니터링하는 단계, 아이들링 시간의 지시를 제공하도록 타이머/카운터를 초기화시키는 단계, 보조 동력 모드에서 엔진(10) 작동중임을 결정하는 단계, 엔진 부하를 결정하는 단계, 그리고 아이들링 시간이 제 1 임계치를 초과하고 엔진 부하가 제 2 임계치보다 적을 때 엔진(10)을 자동으로 정지시키는 단계를 포함한다. 본 발명은 선택된 작동 모드가 현재 엔진 작동 상황과 일치함을 입증하도록 현재 엔진 작동 상황을 검출함으로써 엔진 오퍼레이터가 아이들 셧다운 특징을 방해하는 것을 더 어렵게 한다.
Patent KR-20020089465-A (KR)
Title: 탈착성이 우수한 불소함유 엘라스토머 성형품 및 그제조방법
IPC: B32B1/00
Filed: 2001-04-19
Abstract: 불소함유 엘라스토머 성형품에 플라스마를 조사함으로써 얻어지는 중심선 평균조도가 0.65㎛ 이상인 불소함유 엘라스토머 성형품 또는 불소함유 엘라스토머 기초재를 수지 피복층으로 피복하여 얻어지고, 박리강도 및 플라스마 조사시의 에칭속도가 작은 피복 성형품이고, 탈착성이 우수하며, 또한 백색도도 우수한 불소함유 엘라스토머 성형품, 특히 반도체 제조장치용의 각종 밀봉재로서 바람직한 성형품을 제공한다.
Patent KR-20030007557-A (KR)
Title: Method and Device for the Prevention of Wall Adherences in Shafts on the Introduction of Particles
IPC: B05D5/00
Filed: 2001-04-18
Abstract: A process for inhibiting agglutination in an upright duct when particles are introduced, where at least some parts of the walls of the upright duct are wetted with a film of liquid, and where the liquid used includes a dispersing agent or solvent appropriate for the rubber.
Patent KR-20030036232-A (KR)
IPC: H01L33/40
Filed: 2001-06-18
Abstract: 전도성 중합체 버퍼층을 열 처리하면 저항을 증가시켜 중합체 발광 장치 어레이에서 픽셀간 절연을 향상시킨다.  발광층을 열 처리하면 중합체 발광 장치 어레이에 대한 수명을 향상시킨다.
Patent KR-20040064376-A (KR)
Title: Table made of composite special quality of material
Inventor: SON YOUNG SUK
IPC: A47B13/00
Filed: 2003-01-11
Abstract: PURPOSE: Provided is a table made of a composite special quality of the material which emits far infrared rays and an anion, intercepts electromagnetic waves, makes the product firm and prevents rust. CONSTITUTION: The table made of the composite special quality of the material comprises special alloy materials such as glass, ceramics, jade, jewels, gold and silver by steps of coating the alloy materials or putting the materials being 100kg in weight in a blast furnace; heating the furnace; molding the melted fluid for a table shape frame; polishing and heating the molded table at 500-1500 deg.C for 5 hours or more; annealing the table in an annealing processor at 400-1400 deg.C for 3 hours or more; and dipping the table in a processor for 5 minutes. The materials are composed of gold, silver, copper, iron, moss, inorganic substance, bismuth, other non-iron, special alloy materials, glass, fish and shell skin, chinaware, jade, other jewels, ceramic, germanium, tourmaline raw stone, all sorts of raw stone, soil, all kinds of animals and plants, bacteria, mold at their respective rates.
Patent KR-20040066418-A (KR)
Inventor: KWON DAE SEOP
IPC: G03G15/06
Filed: 2003-01-18
Abstract: PURPOSE: A developing apparatus of an electrophotographic image forming apparatus is provided to stably control a toner layer on a developing roller by forming surface roughness on a layer restricting member, thereby obtaining stable quality of an image. CONSTITUTION: A developing roller(110) supplies toner to an electrostatic latent image formed on a photoconductive drum(200) for developing the electrostatic latent image. A layer restricting member, blade(120) uniformly forms a toner layer on the developing roller by restricting the thickness of toner attached to an outer periphery of the developing roller. The blade frictionally charges the toner with electricity, wherein a contact surface of the blade with the developing roller has surface roughness.
Patent KR-20030063200-A (KR)
Title: 다색 디스플레이의 형성 방법
IPC: H01L51/40
Filed: 2003-01-18
Abstract: 본 발명은 기재 지지체상에 1종 이상의 결합제와 제 1 착색제를 포함하는 이송층을 포함하는 공여 소자 및 지지체와 화상 수용층을 포함하는 수용 소자를 포함하는 조립체를 선택적으로 열에 노출시켜 이송층의 일부를 이송하여 수용 소자의 화상 수용층 위에 목적하는 패턴층을 형성하고; 임의로 평탄화층을 도포하고; 투명 제 1 전기 접촉층을 도포하고; 유기 발광 재료층을 도포하고; 제 2 전기 접촉층을 도포하는 것을 포함하는 다색 디스플레이의 형성 방법에 관한 것이다.
Patent KR-20030064334-A (KR)
Title: 구동 전압 제어 장치
IPC: H04L12/28
Filed: 2003-01-24
Abstract: 본 발명은 저전력으로 구동가능한 소형 구동 전압 제어장치를 제공하는 것이며, 이 제어장치는 액정 표시 패널 등의 부하에 구동전압 VcomH, VcomL을 공급하는 고레벨 출력용 오피 앰프 및 저레벨 출력용 오피 앰프와, 각 오피앰프의 출력을 전환하는 출력 스위치와, 저레벨 출력용 오피 앰프의 비반전 입력단자에 공급되는 설정 전압을 발생하는 저레벨 전압 설정용 오피 앰프와, 커런트 미러 회로 및 클램프 회로를 포함하는 설정 전압 발생부와, 각 오피앰프의 바이어스 전류를 소정의 타이밍으로 제어하는 바이어스 전류 제어부와, 출력 스위치의 전환 타이밍을 제어하는 타이밍 제어부를 포함한다.
Patent KR-20030021194-A (KR)
Inventor: HONG JEONG SUK
IPC: A44B13/00
Filed: 2003-01-30
Abstract: PURPOSE: A tag holder is provided to improve the coupling workability of a tag by simply fitting the hole of the tag through a projection integrally formed with the rear surface of the body. CONSTITUTION: The tack holder(1) includes a plate connecting part(10) having a bendable center portion and being formed with two long holes(11,12) facing each other upon bending and first and second bodies(20,30) facing to each other at both sides of the connecting part(10) and being engaged to each other. The first body(20) is formed with a through hole(21) having a predetermined diameter. The second body(30) is formed at an inside face of the second body(20) integrally with a projection(31) forcedly inserted into the through hole(21). The end portion of the projection forms a removal preventing circular body(32) as its diameter is expanded.
Patent KR-20040069820-A (KR)
Inventor: NA GYU TAE
IPC: H01L21/027
Filed: 2003-01-30
Abstract: PURPOSE: A semiconductor fabrication system for coating a photoresist is provided to enhance the productivity by reducing a process period. CONSTITUTION: A process chamber(10) is sealed up by using a sealing member. A semiconductor substrate is loaded within the process chamber. The substrate loaded on the process chamber is rotated by using one or more substrate plates. A photoresist supply device(15) is installed nearly to the substrate plate in order to supply the photoresist into the semiconductor substrate. A heating unit(17) is installed at an upper part of the substrate plate in order to heat an upper part of the semiconductor substrate. The substrate plate is formed with a substrate support plate(11b) and a rotary driver(11a).
Patent KR-20040074553-A (KR)
Inventor: CHO SANG HEON
IPC: H01J29/87
Filed: 2003-02-19
Abstract: PURPOSE: An explosion proof structure is provided to achieve improved explosion proof strength by arranging an explosion proof member on a panel, funnel, and a band. CONSTITUTION: An explosion proof structure comprises a front panel having a substantially flat outer surface and an inner surface on which a phosphor screen is formed; a back glass having a substantially flat outer surface and an inner surface on which an electron emitting member is mounted; and a container vertically jointed to the front panel and the back glass, and which maintains a vacuumed state. The outer surface of one of the front panel and the back glass, has a center with a thickness thicker than the thickness of the peripheral portion of the outer surface of one of the front panel and the back glass. The container has a band(110) attached thereto.
Patent KR-20040074559-A (KR)
Inventor: CHA JEONG HUN
IPC: H01Q1/00
Filed: 2003-02-19
Abstract: PURPOSE: An antenna is provided to reduce the thickness and manufacturing costs of the antenna by eliminating the need of using a cover lay for insulation of a flexible printed circuit board. CONSTITUTION: An antenna embedded in a mobile communication terminal apparatus, comprises bases(230-1,230-2) made of an insulating material for insulation from a printed circuit board; and copper poles(220-1,220-2) made of a copper, aluminum, or a metal plated on a copper. The material of the base is a polyimide, polyvinyl chloride, or a polyester.
Patent KR-20030074176-A (KR)
Title: 트랜지스터
IPC: H01L27/11
Filed: 2003-03-03
Abstract: 본 발명은 드레인 전류가 게이트전압의 변동에 영향 받지 않는 전계효과형 트랜지스터를 제공한다. 온 상태(도통상태)로 하기 위해서는, 임계값 전압 이상의 전압을 게이트전극(12)에 의해 반전층 형성영역(19)에 인가하여, 반전층을 형성한다. 반전층에 유기된 전하는, 채널영역(18)으로 이동하고, 채널영역(18)의 페르미준위를 변동시켜, 소스영역(16)과 채널영역(18)의 전위장벽이 낮아진다. 이윽고, 이 장벽을 타고 넘어 소스영역(16)으로부터 드레인 영역(17)으로 캐리어가 이동할 수 있게 되어, 드레인 전류가 흐르게 된다.
Patent KR-20040078481-A (KR)
Inventor: LEE JAE HAN
IPC: H04N21/475
Filed: 2003-03-04
Abstract: PURPOSE: A user favorite channel setting method of a digital TV is provided to know user's favorite programs and when the programs start with only one-time key input using a remote controller. CONSTITUTION: Programs transmitted from broadcasting stations are stored and the titles of user's favorite programs are input using a character input device(S1,S2). The programs transmitted from the broadcasting stations are searched for the titles of the user's favorite programs(S3). The searched titles are registered as user's favorite programs(S4). A user selects a desired program from the registered user's favorite programs using a remote controller to watch the selected program.
Patent KR-20030074221-A (KR)
Title: 노면용 커터장치
IPC: E01C23/09
Filed: 2003-03-05
Abstract: 본 발명은 노면(路面)용 커터장치에 관한 것으로서, 장치의 원(圓)/직(直)·절단조작시에 있어서 직진/선회·운동시의 차륜각도의 변경 및 설정을 원터치로 실현 가능한 전환 기구를 구성하는 각 요소를 삼각관수 또는 역삼각관수를 이용해 이론적으로 연산하여 결정하고 차륜의 각도 위치 결정고정을 정확히 실시 가능하게 하는 차륜각도 전환기구를 갖춘 노면(路面)용 커터 장치를 제공한다. 
     절단원의 중심이 되는 주행용(走行用) 기체(機體)의 지점 S0에 삽탈가능하게 지축을 삽통하는 절단원심에서 내보내는 지그(8)을 구비하여 직진, 선회 자유의 차륜각도전환기구 K를 갖추어 제1차륜, 제2차륜이 함께 차륜 내측 근방 오프세트 위치에 해당차륜이 수평면에 대해 회동이 자유롭게 회동축 (1, 2)를 입설하여 서로 향하게 배설한다. 회동축(1, 2)는 주행용 기체 BS에 수직으로 고정 설정된 종형축 받침을 형성하는 통체 (1a, 2a)에 관장 및 축지 된 선회전환시의 직에서 원으로 또는 원에서 직으로의 전환을 전환 레버 (5)의 원터치 조작으로 차륜의 각도위치결정고정을 가능하게 하는 것을 특징으로 한다.
Patent KR-20040078787-A (KR)
Inventor: HSU YUN PENG
IPC: D06B23/10
Filed: 2003-03-05
Abstract: PURPOSE: A dyeing method and a dyeing device of textile or yarn using a flexible bag are provided which are capable of dyeing the textile or the yarn uniformly, reducing rate of a dyeing solution, preventing dyes adhered on a test vessel from affecting result of next dyeing test, saving the dyeing solution, reducing a post treatment cost and reducing bad effects to environment. CONSTITUTION: A dyeing method of textile or yarn using a flexible bag comprises the steps of: (a) drawing the textile or the yarn and setting the textile or the yarn in a flexible waterproof bag; (b) feeding a dyeing solution in the bag; (c) sealing an aperture of the bag to maintain the dyeing solution and to form a test dyeing bag; and then (d) extending the test dyeing bag with a clamp tool, and rotating the test dyeing bag or pressing a surface of the bag sectionally to flow the dyeing solution in the bag everywhere, so infiltrating the dyeing solution into the fiber of the textile to dye the fiber uniformly.
Patent KR-20040016374-A (KR)
Inventor: MARUYAMA SHIGEYUKI
IPC: H01L21/66
Filed: 2003-03-06
Abstract: PURPOSE: To provide a contactor(a probe card, a socket) capable of easily dealing with a narrow-pitch terminal or an area array terminal by employing laser beam machining. CONSTITUTION: A conducting material 1A is fixedly connected with a contact substrate 2 in a standing state. A contact electrode 1 is bent by irradiating a laser beam, and formed in a prescribed shape. By changing laser irradiation condition, the contact electrode 1 can be bent to both sides, even when the laser beam is irradiated from the same direction. Accordingly, the contact electrode 1 can be deformed in an optional shape.
Patent KR-20030024770-A (KR)
Inventor: SOHN JUNG HO
IPC: G11B20/10
Filed: 2003-03-11
Abstract: PURPOSE: A player for reproducing normal audio of a slow-motion video is provided to hear clear and exact audio in watching a slow-motion video picture, thereby efficiently being used for learning and information analysis. CONSTITUTION: Slow audio signal are input to a player(114) for reproducing normal audio of a slow-motion video. The slow audio signals are stored at a memory in a digital signal compress processor in real time, and are compressed at a normal audio reproducing speed. The compressed audio signals are compressed according to delay time ratio of slow-motion audio signals. A blanking time are inserted by the regular time as much as the remaining delay time. The restored audio signals and the blanking space signals are alternately input to an audio output amplifier(115) to make audio clear and exact.
Patent KR-20040082555-A (KR)
Inventor: YOO GONG HYEON
IPC: H04N5/44
Filed: 2003-03-19
Abstract: PURPOSE: An integrated multimedia processing system for a kitchen is provided to enable telephone communication, watching and listening of TV and radio broadcast and web search through a mobile terminal. CONSTITUTION: An integrated multimedia processing system includes a base station A/V output device and at least one mobile A/V output device. The base station A/V output device selects one of output signals of a TV tuner(110), a radio receiver and a telephone circuit(150), modulates the selected signal into an RF signal, transmits the RF signal through an RF transceiver(140), packetizes data transmitted from an external network and internal control data and transmits the packetized data through a wireless LAN card(210). The mobile A/V output device receives and demodulates the signal transmitted from the RF transceiver, extracts a video signal or an audio signal from the demodulated signal, processes the extracted signal to output it to an image display unit or an audio input/output unit, receives the packet transmitted from the wireless LAN card, separates data from the received packet to output the data to the image display unit or packetizes control data to transmits the control data to the wireless LAN card.
Patent KR-20040087638-A (KR)
Inventor: LEE YEONG SIK
IPC: G08C19/02
Filed: 2003-04-07
Abstract: PURPOSE: A remote meter reading terminal using a hall sensor and a remote meter reading system using the same are provided to reduce the meter reading cost by using a remote meter reading method. CONSTITUTION: A remote meter reading terminal using a hall sensor includes number plates of k number, hall sensors of k number, an ID setup unit, a communication unit, and a meter reading and control unit. The number plates(232-1 to 232-k) are used for displaying meter values. The hall sensors(241-1 to 241-k) are used for detecting intensity of magnetic field of the number plates and generating hall voltages. The terminal ID setup unit(242) sets up ID of a terminal. The communication unit(244) is connected to a server in order to perform a remote meter reading process. The meter reading and control unit(243) reads and stores the meter values by comparing the hall voltages with a reference value and transmits the ID of the terminal to the server through the communication unit.
Patent KR-20030081098-A (KR)
Title: 액정 셀의 검사방법 및 검사장치
IPC: G02F1/13
Filed: 2003-04-09
Abstract: 본 발명은 검사효율을 향상한 액정 셀의 검사장치를 제공하는 것으로서, 액정 셀체의 액정 셀을 순차 복수의 표시패턴으로 검사하고, 액정 셀이 불량품이라고 판단된 경우, 완전양품이 아닌 경우, 이후의 검사가 불필요한 경우에는 제어장치(14)에 의해 이 액정 셀(9 1 ~9 4 중 어느 하나)을 비점등으로 하고, 이후의 검사 필요가 없는 불량품 또는 완전양품을, 그것을 알 수 있는 상태에서 상기한 바와 같은 화상표시로 하는 것에 의해 그 검사가 불필요한 액정 셀의 검사를 확실하게 정지시킬 수 있어 검사의 효율이 향상되는 것을 특징으로 한다.
Patent KR-20040089419-A (KR)
Title: Function of automatically controlling indoor temperature suction of vehicle, and apparatus for removing contamination of indoor air and dust
Inventor: RYU ZOA SIK
IPC: B60H1/24
Filed: 2003-04-14
Abstract: PURPOSE: A function of automatically controlling indoor temperature suction of a vehicle, and an apparatus for removing contamination of indoor air and dust are provided to prevent an indoor temperature from increasing when a user stops or parks a vehicle, automatically ventilate a room of the vehicle, and reduce energy by maximizing the efficiency of operating an air conditioner. CONSTITUTION: An indoor lamp(300) is installed at a suction plate. Temperature sensors and dust sensors are mounted around the indoor lamp. A plurality of holes(350-389) is formed at the suction plate, wherein the plural holes are different in diameter by steps. The sensors detect an indoor temperature and a contamination state for controlling signals to operate a suction motor and a discharge motor.
Patent KR-20030082458-A (KR)
Title: 광학 장치
IPC: G02B27/00
Filed: 2003-04-16
Abstract: 본 발명의 광학 장치는 광학계 장착 플레이트, 케이싱, 나사구멍 형성부를 포함하고 있다.  광학계는 광학계 장착 플레이트 상에 장착되어 있다.  광학계 장착 플레이트는 케이싱 내에 수납되어 있다.  나사구멍 형성부는 삼각 받침대 헤드 상에 제공된 나사와 나사결합하기 위하여 케이싱의 바닥부에 형성되어 있다.  나사가 나사구멍 형성부에 나사식으로 체결되는 때에 상기 나사구멍 형성부에 작용되는 회전 체결력에 대항하도록 상기 나사구멍 형성부 및 케이싱의 바닥부의 적어도 일부분이 광학계 장착 플레이트와 맞물려 있다.
Patent KR-20040093882-A (KR)
Inventor: NA JONG HYEOK
IPC: G16H10/60
Filed: 2003-04-30
Abstract: PURPOSE: A system for easily outputting/storing medical digital images is provided to reinforce/permanently store systematic management for an embryo and a mother by replacing a function of a maternity notebook with a CD, and enhance economical efficiency and productivity by making an ultrasound imaging device outputting only a 2D(Dimensional) image easily output a 3D(Dimensional) image. CONSTITUTION: An MCH(Memory Control Hub)(10) quickly process an image/sound transmitted from an image/sound signal processor in the ultrasound imaging device(80). An ICH(Interface Control Hub)(20) controls various kinds of I/O(Input/Output) signals in order to operate the MCH smoothly. A processor(30) processes operation information transmitted through the MCH and the ICH. A graphic/memory part(40) outputs/stores the image/sound information transmitted from the image/sound signal processor in the ultrasound imaging device to a digital image outputting/storing equipment. An Ata bus/image capture board(50) captures the 2D ultrasound image. A keypad/mouse/foot switch(60) enables the user to operate the image/sound signal processor and the information.
Patent KR-20030044956-A (KR)
Inventor: KIM DAE IN
IPC: E01B19/00
Filed: 2003-05-06
Abstract: PURPOSE: A muffler is provided not to give inconvenience to citizens by decreasing noise. CONSTITUTION: The muffler is composed of a vibration guide wing(2), which is provided with a vibration damper(3) formed in a steel container and filled with fluid materials such as water and a high-tensile bolt and guides guide the vibration of a rail(1), and fastened to the rail(1) by a bolt and a nut to reduce the noise caused while a train runs or approaches.
Patent KR-20040100718-A (KR)
Inventor: MIN OK RYEOL
IPC: F01P5/02
Filed: 2003-05-24
Abstract: PURPOSE: A fan operation circuit for a vehicle is provided to variably change the performance at a low speed by connecting a radiator fan motor with a condenser fan motor in the parallel structure, to increase the wind force, and to reduce the noises by making the power consumption of the radiator fan motor larger than that of the condenser fan motor at a low speed. CONSTITUTION: A radiator fan motor(30) and a condenser fan motor(20) are electrically connected with a vehicle battery(10) in the parallel structure. A relay unit is placed between the connection point of the fan motors and the vehicle battery to control the voltage applied to the fan motors. The relay unit includes a first relay(RLY1) installed to apply the voltage to the fan motors and a second relay(RLY2) directly connected with a resistor(R).
Patent KR-20040105519-A (KR)
Inventor: LEE DONG HUN
IPC: H04L27/26
Filed: 2003-06-09
Abstract: PURPOSE: An apparatus and a method for recovering carrier frequency using a repeating pseudo noise sequence in a TDS(Time Domain Synchronous)-OFDM system are provided to widen an offset range of frequencies to be recovered by using a mean of calculated phase values. CONSTITUTION: An apparatus receives an OFDM(Orthogonal Frequency Division Multiplexing) system having a synchronous segment signal consisting of repeating PN(Pseudo Noise) sequences and recovers the carrier frequency. The carrier frequency recovery apparatus includes a delay member(505), a conjugate complex portion(510), A multiplier(515), a correlator(520), a phase estimator(535), and a mean calculator(540). The delay member delays the repeating PN sequences for a predetermined delay time. The conjugate complex portion calculates a complex conjugate of each of the delayed repeating PN sequences. The multiplier multiplies each of the delayed repeating PN sequences with the calculated complex conjugate. The correlator convolution of the output of the multiplier and calculates a correlation value of each of the repeating PN sequences and each of the delayed repeating PN sequences. The phase estimator estimates phase values for intervals where the repeating PN sequences exist. The mean calculator calculates a mean of the estimated phase values.
Patent KR-20040047533-A (KR)
Inventor: HAYASHI KEN
IPC: F16F9/12
Filed: 2003-06-20
Abstract: PURPOSE: A damper is provided to reduce pneumatic resistance with a viscous fluid by passing the viscous fluid in a gap, while reducing a damping force applied to a top, then to integratedly rotate the top and a bottom by rotating the top in certain direction, thereby changing torque according to a rotational direction. CONSTITUTION: A housing is charged with a viscous fluid. The first rotor(30) is rotatively received within the housing, and is transmitted a rotational force outside. The first connector(32A) is formed in a section of the first rotor(30). The second rotor(20) is received at a live spindle of the first rotor(30) to be rotated within the housing. The second connector(24A) is formed in a section of the second rotor(20), integratedly rotates the second rotor(20) with the first rotor(30), and forms a gap having a certain interval between the first connector(32A) and it such that the viscous fluid can pass through in the gap. An elastic member is elastically supported in a rotational direction where the first connector(32A) is connected with the second connector(24A), and accumulates an elastic force while the first connector(32A) is disconnected from the second connector(24A).
Patent KR-20050000647-A (KR)
Inventor: YOU TAE HO
IPC: G02F1/13357
Filed: 2003-06-24
Abstract: PURPOSE: An LCD(Liquid Crystal Display) using LEDs(Light Emitting Diodes) is provided to reduce the number of LEDs used as a light source of the LCD by arranging a radiation plate in an LED package. CONSTITUTION: An LCD includes an LED(122) and a radiation plate(120) for making projection angles of lights emitted from the LED different in response to directions. The LCD further includes a mold for surrounding the LED and the side and backside of the radiation plate. The LCD also has LED packages(114) and a printed circuit board. Each of the LED packages includes an LED, a radiation plate, and a mold. A control circuit for controlling emission of the LED is mounted on the printed circuit board. The LED packages are mounted on the printed circuit board.