baber/WOPTO huggingface dataset:
Patent KR-20090015460-A (KR)
Title: Pixel circuit and display panel and display device having the same
Inventor: YOO JUHN SUK
IPC: G09G3/32
Filed: 2007-08-08
Abstract: A pixel circuit, display panel and a display device including pixel circuit are provided to display the desired image and to improve the picture quality by preventing the change of the threshold voltage of the driving thin film transistor operating the organic light emitting diode(OLED). An OLED is connected between the first node and the voltage line for the first potential voltage. The first switch element controls the output toward one second node among the data signal from the data line and the black data signal. The swing voltage(Vss) supply line supplies the first potential voltage while the black data signal is applied. The second switch element controls the current amount flowing between the first node and the swing voltage supply line. The current supply line delivers the constant current from outside. The switching circuit forms the current passage between the current supply line and the current passage of the second switch element selectively. The switching circuit recovers the threshold voltage of the second switch element to the initial set value.
Patent KR-20080019162-A (KR)
Title: A metering device
Inventor: SCHLUMMER CHRISTIAN
IPC: B01F23/47
Filed: 2007-08-14
Abstract: A metering device is provided to process media sensitive to shearing force and sensitive to residence time in a low pressure process and a high pressure process by employing a first path section and a second path section with a metering member. A metering device feeding addition agent with plastic melt comprises a first path section(29) and a second path section. Fluid flows through the first path section. Fluid flows around the second path section. Both path sections include at least one metering member(31) and a recession(32). The recession is formed to receive the metering member. More than one additional advanced path section is connected to the upstream of the first path section. More than one additional subsequent path section is connected to the downstream of the first path section. The first path section is connected to the advanced path section and the subsequent path section by a connection unit(38).
Patent KR-20090017225-A (KR)
Title: Delineator
Inventor: LEE SANG JIN
IPC: E01F9/04
Filed: 2007-08-14
Abstract: A delineator having a wild animal shunning function is provided to prevent the accident of vehicles traveling at high speed and to protect wild animals on an expressway, to prevent the damage of a road and to maintain the above-mentioned effects semi-permanently. A delineator(100) having a wild animal shunning function comprises a case(10) opened upward and downward and provided with many receiving portions, a solar cell, a storage battery, an ultrasonic wave generator and a speaker mounted to the receiving portions respectively, transparent plastics installed to the opened upper part of the case tightly by a packing, a mesh plate mounted to the opened lower part of the case, and a reflection plate(11) mounted to one side of the case.
Patent KR-20070089669-A (KR)
Title: Copper powder for electrically conductive paste
Inventor: SANO KAZUSHI
IPC: B22F1/02
Filed: 2007-08-17
Abstract: A copper powder which can secure the viscosity that is needed as a conductive paste although copper powder prepared by the wet reduction process is used is provided. A copper powder for conductive paste is characterized in that surfaces of the particles are flattened by mechanically colliding particles of copper powder prepared by the wet reduction process with one another. The copper powder has a mean particle size of 0.1 to 10 mum. The wet reduction process comprises adding a reductant into a suspension in which copper hydroxide is suspended in water to primarily reduce copper hydroxide into cuprous oxide, and adding a reductant into a suspension the relevant cuprous oxide is suspended in water to secondly reduce the cuprous oxide into metal copper. The wet reduction process further comprises an oxidation treatment performed between the first reduction treatment and the second reduction treatment.
Patent KR-20090020920-A (KR)
Title: Apparatus for plasma enhanced atomic layer deposition and method of forming thin film using the same
Inventor: LEE JUNG HYUN
IPC: H01L21/203
Filed: 2007-08-24
Abstract: An apparatus for plasma enhanced atomic layer deposition and a method of forming thin film using the same are provided to prevent self bias effect and improve step difference property of a thin film by generating plasma through applying RF voltage while applying voltage pulse. A PEALD(plasma enhanced atomic layer deposition) apparatus comprises a power source for generating plasma. The power source comprises a first power generator(240a), a second power generator(240b) and a control box(235). The first power generator applies voltage pulse. The second power generator applies RF voltage having frequency which is greater than the voltage pulse. The control box is connected to the first and the second power generators and matches signals generated in the first and the second power generators. The control box can be connected to a shower head(230) for gas supply or a substrate holder(210).
Patent KR-20080020958-A (KR)
Title: Memory circuit
Inventor: LIAW CORVIN
IPC: G11C7/00
Filed: 2007-08-31
Abstract: A memory circuit is provided to generate a reference potential by providing two different well-defined potentials to two different bit lines and then short-circuiting the bit lines. According to a memory circuit, a plurality of parallel bit lines(21-28) is connected to a plurality of memory cells. A plurality of sense amplifiers(341,342,343,344) is connected to the bit lines. The memory circuit further includes a plurality of switches(351,352,353,354). Each switch is connected to each bit line pair and short-circuits each bit line pair switchably. The bit lines of each bit line pair are connected two different sense amplifiers, and the bit lines of each bit line pair are adjacent to another bit line arranged between bit lines of the bit line pair.
Patent KR-20090022946-A (KR)
Title: Lever type connector assembly
Inventor: HEO SUNG HO
IPC: H01R13/629
Filed: 2007-08-31
Abstract: A lever type connector assembly is provided to prevent the movement of a lever through the restriction of lever and facilitate the smooth release of lever restriction when the lever is moved into the place for the connection between those two connectors. A second connector(200) which is mounted within a first connector(100) is connected to the first connector electrically. A lever(300) is coupled to the second connector, being movable in the first and second directions. The second connector within the first connector is selectively connected to the lever according to the movement. A cover unit(400) encloses an upper portion of the second connector, and a restricting unit(500) restricts the lever when the lever is moved to the place for the connection between those two connectors.
Patent KR-20090025802-A (KR)
Title: 물리채널로의 맵핑 행렬을 이용한 데이터 전송 방법
Inventor: SHIN SEUNG YONG
IPC: H04B7/26
Filed: 2007-09-07
Abstract: 물리채널로의 맵핑 절차를 간단히 하고, 맵핑과 동시에 인터리빙을 수행하는 무선 통신 시스템에서 데이터 전송 방법을 제공하는 데 있다. 데이터 전송 방법은 비트 스트림을 확산계수에 대응하는 맵핑 행렬을 이용하여 물리채널로 맵핑하는 단계, 상기 확산 계수를 따라 상기 물리채널을 확산시키는 단계 및 확산된 상기 물리채널을 전송하는 단계를 포함한다.
Patent KR-20090025915-A (KR)
Title: Ink composition for color filter, method for manufacturing picture element of color filter, and color filter
Inventor: HONG JIN KI
IPC: C09D11/30
Filed: 2007-09-07
Abstract: An ink composition for a color filter is provided to ensure excellent direct spray property in printing, excellent color purity and pattern uniformity, and to prevent the nozzle blocking phenomenon. An ink composition for a color filter comprises an acrylic copolymer resin, a reactive unsaturated compound, pigment and solvent. The acrylic copolymer resin comprises the first repeating unit 5-45 mole % of the chemical formula 1; the second repeating unit 5-45 mole % of the chemical formula 2; and the third first repeating unit 10-90 mole % derived from a monomer copolymerizable with the chemical formula 1 or 2. In the chemical formula 1 and 2, R1-R8 are identical or independently selected from the group consisting of hydrogen and substituted or unsubstituted alkyl group; X1 is selected from the group consisting of CR9R10R11, substituted or unsubstituted alkyl group and R12OR13; R9-R11 are identical or independently selected from the group consisting of hydrogen and substituted or unsubstituted alkyl group; R12 is substituted or unsubstituted alkylene group; R13 is selected from the group consisting of substituted or unsubstituted alkyl group, and substituted or unsubstituted aryl group; and n is an integer of 1-10.
Patent KR-20080054336-A (KR)
Title: Golf club head
Inventor: MATSUNAGA HIDEO
IPC: A63B102/32
Filed: 2007-09-10
Abstract: A golf club head is provided to enable an amateur golfer whose hitting point is likely to be changed to increase the average flying distance and to restrain the bending of a golf club head on the center of a face portion. A golf club head includes a face portion(2) made of titan or titan alloy, a crown portion(3), a sole portion(4), a side portion and a hosel portion(6). The golf club head is formed by integrating a head body and a face plate through welding such as laser welding or plasma welding. A rear thick portion(20) is formed to be integrated with the face plate only on the center portion in a direction of a toe heel among the cross corner portions of the face portion and the sole portion. The width of the rear thick portion in a direction of a toe heel is less than 20 mm.
Patent KR-20090038173-A (KR)
Title: Backlight assemlby
Inventor: KIM JONG HAG
IPC: G02F1/13357
Filed: 2007-10-15
Abstract: A backlight assembly is provided to prevent a diffusing plate from drooping due to the second member having tension, and maintain a certain distance from a lamp. A lamp guide comprises a holder(733). A lamp(760) is inserted and fixed into the holder. The lamp guide comprises the first member(735) and the second member(737). The first member is formed in the shape of a circular cone so as to correspond to the force delivered from the diffusing plate(740) and so as not to cover the light emitted from the lamp to the maximum. The second member is formed in the rib structure which effectively reduces the force. The diffusing plate is installed above the lamp to uniformly disperse the light emitted from the lamp.
Patent KR-20090038238-A (KR)
Title: Smoke and dust collection for tunnel
Inventor: LEE JI SEOK
IPC: E21F5/00
Filed: 2007-10-15
Abstract: A smoke and dust collection system of a tunnel is provided to collect the smoke and heat inside of the tunnel by the convection current of the air and to purify it. A smoke and dust collection system of a tunnel(10) which is made of glass wool or PC board to transmit the incident ultraviolet ray comprises: an air supply unit(20) which forms an air curtain at the entrance of the tunnel and prevents the smoke gas and heat inside the tunnel from leaking outside; a dust collecting unit(30) gathering the smoke and heat flowing toward the ceiling of the tunnel; a heat exchange unit(40) which generates energy from thermal energy variation of the collected smoke and heat; an air blower unit(50) which discharges the smoke and heat; and a purifying unit(60) purifying the smoke and heat to be discharged, by spraying water.
Patent KR-20080035473-A (KR)
Title: Flux-cored wire for gas shielded arc welding for creep-resisting steels
Inventor: MATSUSHITA YUKINOBU
IPC: B23K35/30
Filed: 2007-10-17
Abstract: A flux-cored wire for gas shielded arc welding is provided to obtain a weld metal having good toughness and embrittlement characteristics in all positions and enable a high efficiency welding operation to be performed by wire reverse polarity when using the flux-cored wire as a welding material for creep-resisting steels. As a flux-cored wire for gas shielded arc welding comprising a flux filled in a steel sheath, the flux-cored wire for gas shielded arc welding comprises, based on the total wire weight of the entire wire comprised of the steel sheath and the flux, 1.0 to 5.0 mass % of BaF2, 0.3 to 3.0 mass % of Al, 0.04 to 0.15 mass % of C, 0.005 to 0.040 mass % of N, 1.0 to 2.7 mass % of Cr, 0.4 to 1.3 mass % of Mo, 0.05 to 0.5 mass % of Si, 0.5 to 1.5 mass % of Mn, and 85 to 95 mass % of Fe with Ni being controlled to 0.1 mass % or less. The flux-cored wire for gas shielded arc welding contains 0.1 to 0.5 mass % of Mg in the flux based on the total wire weight. The flux-cored wire for gas shielded arc welding contains 0.5 to 2.5 mass % of the total of iron oxides changed into FeO, Mn oxides changed into MnO, Zr oxides changed into ZrO2 and Mg oxides changed into MgO in the flux. The flux-cored wire for gas shielded arc welding satisfies the relation of 3.0<=[Al]/([C]+[N])<=15.0 when the contents of Al, C and N are represented by [Al], [C], and [N] respectively.
Patent KR-20090039504-A (KR)
Title: Full-wavelength ultrasonic welder of horizontal vibration type, and ultrasonic bonding apparatus having the same
Inventor: KIM KYUNG SOO
IPC: B23K20/10
Filed: 2007-10-18
Abstract: A half wave length ultrasonic wave welding machine and an ultrasonic bonding device including the same are provided to make the replacement of a tool horn and the correction of planarity facilitated by having a slop on the one protruding side of the tool horn. An ultrasonic bonding device(200) including a half wave length ultrasonic wave welding machine comprises: a chip feeding unit(230) installed at one side of a table(220) in order to supply a chip; a stage unit(240) installed at the other one side of the table in order for a substrate having the chip to be settled; a feeding unit horizontally movable, established in the table in order to move the location of the substrate and to fix the substrate; a head unit(260) including a full spectrum ultrasonic-wave welding machine(100) of a transversal vibration mode; and a pick up unit transferring the chip to the full spectrum ultrasonic-wave welding machine of the transversal vibration mode.
Patent KR-20090041285-A (KR)
Title: Optical apparatus emitting light using electric field level and control method for the same
Inventor: CHOI HYUK JAE
IPC: H05B37/02
Filed: 2007-10-23
Abstract: An automatic lighting device of a cut off switch control bar and a control method thereof are provided to improve efficiency of an operation by automatically being turned on by an electric field generated in a high voltage wire. An automatic lighting device of a cut off switch control bar includes a power maintenance part(50), an electric field detection part(10), an oscillation part(20), and a light emitting part(40). If a push button switch is turned on, the power maintenance part maintains a power supply of each unit of a lighting device. If an electric field is detected from a high voltage wire or a cut off switch, the electric field detection part outputs an electric field detection signal. The oscillation part outputs a pulse group by synthesizing a signal having a first frequency and the electric field detection signal. LED devices(D4,D5,D6,D7) of the light emitting part are lighted according to a signal by the pulse group outputted from the oscillation part.
Patent KR-20090043057-A (KR)
Inventor: KIM HWA MOK
IPC: H01L33/06
Filed: 2007-10-29
Abstract: n형 반도체층, 활성층, p형 반도체층 및 투명전극층을 포함하는 발광다이오드가 개시된다. 개시된 발광다이오드는, p형 반도체층과 상기 투명전극층 사이에 개재되는 터널층과, 상기 터널층을 상측으로 노출시키도록 상기 투명전극층에 형성된 개구부와, 상기 개구부 내에 형성되는 DBR(Distributed Bragg Reflector)과, 상기 개구부 내의 DBR을 덮도록 상기 투명전극층 상에 형성되는 전극패드를 포함한다. 
       
     DBR, 터널층, 발광다이오드, 투명전극층, n형, p형, 반도체층, 활성층
Patent KR-20090044148-A (KR)
Inventor: HONG HYUCK KI
IPC: G01N21/00
Filed: 2007-10-31
Abstract: 본 발명은 마이크로 플레이트의 시료들에 대해 한번에 촬영된 이미지로 각각의 pH, O 2  농도, CO 2  농도 등의 정보를 얻을 수 있도록 마이크로 플레이트의 각각의 웰에 대해 균일한 광을 동시에 조사하는 광원 장치에 대한 것으로서, 내부에 공동이 형성되고, 마이크로 플레이트의 각 웰에 대응되는 영역에 형성된 복수의 통공을 포함하는 광원 플레이트, 상기 통공의 내부로 연장되고, 상기 광원 플레이트의 내부 방향으로 벌어지는 형상의 캡 및 상기 광원 플레이트의 적어도 하나의 일측변에 부착된 측부 광원을 포함하고, 상기 복수의 통공 각각을 통해 발산되는 각각의 광은 균일한 것을 특징으로 한다. 
       
     마이크로 플레이트, 균일광, 광효율, 광산란
Patent KR-20090045569-A (KR)
Inventor: OH YOUNG HOON
IPC: G11C11/407
Filed: 2007-11-02
Abstract: 본 발명은 듀티 비를 보정하는 기능을 포함한 상태에서도 상대적으로 작은 면적을 차지하고, 상대적으로 적은 전류를 소비하는 반도체 소자의 지연고정루프에 관한 것으로서, 지연고정을 이루기 위하여 소오스 클럭과 피드백 클럭의 위상을 비교하고, 비교결과에 대응되는 시간만큼 상기 소오스 클럭의 클럭에지에 대응된 내부클럭을 지연하여 지연고정루프클럭으로서 출력하기 위한 지연고정부와, 상기 지연고정루프클럭을 입력받아 상기 지연고정루프클럭의 제1에지에 대응하는 제1클럭 및 제2에지에 대응하는 제2클럭으로 스플릿하여 출력하기 위한 스플릿부와, 상기 제1클럭의 듀티 비에 대응하는 제1전압과, 상기 제2클럭의 듀티 비에 대응하는 제2전압을 생성하기 위한 전압생성부와, 상기 제1전압과 상기 제2전압의 레벨을 비교하기 위한 전압비교부, 및 상기 제1클럭과 상기 제2클럭 중 어느 하나의 클럭을 지연하여 출력하되, 상기 전압비교부의 출력신호에 응답하여 그 지연량이 결정되는 클럭지연부을 구비하는 반도체 소자를 제공한다. 
       
     지연고정루프, 싱글 루프, 듀얼 루프, 스플릿
Patent KR-20080045053-A (KR)
Title: Electrical connector for flat cable
Inventor: IWASAKI MASAAKI
IPC: H01R12/78
Filed: 2007-11-13
Abstract: An electric connector for a flat cable is provided to have a shield function for shielding the electromagnetic wave and to use a contact with a cantilever shape. Plural contacts(31,32) with a cantilever shape are connected electrically with an FPC(Flexible Printed Circuit)(8). An insulation housing(2) protects and maintains the contacts. A shield state(6) is mounted to the housing and covers the area for connecting the FPC with the plural contacts. The shield plate presses the FPC to contacts. A pressing plate is constructed by a metal plate for covering the area contacted by the flat cable and plural contacts. The housing has a rear side opposite to the front side for ejecting the flat cable and the pressing plate is fixed to the housing at the rear side of the housing. The contacts are protruded from the contact surface of the flat cable of the housing at the free state.
Patent KR-20090049745-A (KR)
Inventor: LEE AN JE
IPC: A47F5/08
Filed: 2007-11-14
Abstract: 본 발명은 선반에 관한 것으로, 더욱 상세하게는 화장실이나 필요한 장소에 설치한 행거에 조립식으로 설치하여 타올이나 화장실 용품 및 의류 등을 걸어 보관할 수 있도록 하여 보관공간을 확대할 수 있도록 하는 선반에 관한 것이다. 
     이러한 본 발명은 다수의 환봉(12)을 설치한 메인 파이프(11)의 하측으로 절곡부(13)와 삽입부(11a)를 갖는 선반(11)에 있어서, 
     상기 메인 파이프(11)의 삽입부(11a)가 결합되고 하측으로 받침 파이프(17)를 결합하여 파이프 고정 스크류(26)와 너트(27)로 연결하며 행거(14)가 관통하는 조립홈(25)을 갖는 후방 연결구(24)와; 
     상기 후방 연결구(24)의 전방에 설치하며 행거(14)가 관통하는 조립홈(22)을 갖고 양쪽에 연결홈(23)이 형성되어 설치 스크류(28)로 결합하는 전방 연결구(21)로 이루어진 고정장치(20)로 선반(10)을 행거(14)에 설치함을 특징으로 하는벽체(23)에 설치한 행거(21)에 걸어 설치하는 것이다. 
       
     선반, 타올, 화장실,
Patent KR-20090050367-A (KR)
Inventor: KIM YEON SOO
IPC: G02F1/1337
Filed: 2007-11-15
Abstract: 본 발명은 플라즈마 디스플레이 패널용 광대역 반사형 광학필터 필름에 관한 것으로, 구체적으로 플라즈마 디스플레이 패널로부터 가시광선 영역에서 선택반사 파장영역을 조절하고, 서로 다른 파장을 지니는 필름이 2장 이상이 점착제로 적층되어 이루어진 광대역 반사 콜레스테릭액정필름; 상기 광대역 반사 콜레스테릭 액정필름의 일면에 다중반사로 인한 콘트라스트 저하 및 이중상을 막기 위한 λ/4 위상차편광필름; 및 선편광필름 순으로 점착제로 적층되어 형성되고, 상기 선편광 필름의 일면에 기능층이 부여되어 이루어짐을 특징으로 하여 외광의 반사에 의한 명암의 저하를 방지하고, 내광의 효율을 높여 탁월한 선명도 및 우수한 전력효율을 지니도록 하는 플라즈마 디스플레이 패널용 광대역 반사형 광학필터 필름 및 이의 제조방법에 관한 것이다.  
       
     플라즈마 디스플레이 패널(PDP), 광대역 필름, 콜레스테릭액정, 위상차, 편광
Patent KR-20070118988-A (KR)
Inventor: I GWANG SEOK
IPC: A61K36/282
Filed: 2007-11-20
Abstract: A soft capsule type vagina-treating tablet is provided to improve sterilizing and treating effects on bacterial infection in the vagina and reduce side effects such as skin irritation and allergy by using smoke having therapeutic effects. A soft capsule type vagina-treating tablet(1) is prepared by encapsulating mugwort smoke to form smoke capsules(3) containing mugwort smoke in the inside(2) of the smoke capsule tablet, wherein the capsule tablet is dissolved when it is place within the vagina, the membrane of smoke capsules formed in the inside of tablet is broken out and the smoke kills fungi and bacteria within the vagina.
Patent KR-20090053178-A (KR)
Inventor: SONG OH YOUNG
IPC: G06Q10/10
Filed: 2007-11-22
Abstract: 본 발명은 상황 적응적 서비스 제공을 위한 추론 장치 및 그 방법과 그를 이용한 상황인지 지식서비스 시스템에 관한 것으로, 유비쿼터스 환경에 기반한 홈네트워크 서비스에서 사용자에게 상황 적응적 맞춤형 서비스를 제공하기 위해 다양한 홈 상황정보(Context)와 사용자 프로파일(Profile) 등의 정보를 이용하여 서비스를 추론하기 위한 추론 장치 및 그 방법과, 그를 이용한 상황인지 지식서비스 시스템과, 상기 방법을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체를 제공하고자 한다. 
     이를 위하여, 본 발명은 상황인지 지식서비스 시스템에 있어서, 사용자 및 환경, 서비스와 시공간의 복합적 개념의 정보 및 사용자별 정책(보안 레벨, 기기 접근 레벨, 우선순위, 지능적 레벨)을 저장ㆍ관리하고 있는 저장수단; 입력 데이터를 시스템 내부에서 이용할 수 있도록 파싱하여, 서비스 종류에 따라 분류하기 위한 인터페이스 제어수단; 상기 정책을 참조하여, 서비스 지역에서 사용자 간 또는 서비스 간 충돌 발생을 방지하기 위한 서비스 스케쥴링을 수행하기 위한 서비스 제어수단; 상기 서비스 스케쥴링에 따른 서비스 제공시, 사용자별 서비스 상태를 트랙킹하여 끊김없는 서비스를 제공하기 위한 세션 관리수단; 상기 저장수단으로부터 수집된 정보를 토대로 제공될 서비스를 추론하고, 상기 정책에 따라 해당 사용자의 서비스 제공 여부 및 제공 수준을 동적으로 제어하기 위한 추론수단; 및 상기 추론수단의 요청에 따라 쿼리를 생성하여 상기 저장수단에 질의하고 그 응답을 반환받 기 위한 쿼리 관리수단을 포함한다. 
       
     상황인지, 지식서비스, 추론엔진, 정책, 온톨로지
Patent KR-20090054252-A (KR)
Inventor: LEE SOON JONG
IPC: G02F1/13
Filed: 2007-11-26
Abstract: 본 발명은 유리기판 품질 검사장치의 광원 조절 기술에 관한 것으로서, 조명부에서 유리기판의 표면으로 투과될 광원 조사(제논램프와 각 파장대별 레이저의 광원, 그리고 UV광원, X선 광원 등)가 이루어질 때 그 광원에서 특정대역의 파장대만을 투과하는 필터부재를 적용하여, 너울 영상을 보다 선명하게 하여 카메라로 너울을 촬영시 너울 검사의 측정 정밀도를 높이고, 이에따라 제품에 대한 품질 만족도를 향상시키도록 한 것이다. 
       
     유리기판, 스트리크(Streak) 너울, 씨크밴드(Thick Band) 너울, 코드(Cord) 너울, 광원, 카메라
Patent KR-20090055943-A (KR)
Title: Adaptation sensor network and method for the network controling
Inventor: CHEONG YOUNG WOOK
IPC: H04B17/00
Filed: 2007-11-29
Abstract: An adaptation sensor network and a method for controlling the network are provided to analyze event information sensed in a sensor node, thereby controlling a sampling rate of the sensor network. A determining unit(110) determines whether an event is generated in a sensor network. If the event is generated, an event information transmitter(120) transmits event information to an USN(Ubiquitous Sensor Network) gateway(300) through at least one relay node(200). A sampling information receiver(130) receives sampling information. The sampling information is information analyzing the event information transmitted from the USN gateway. A data sampling rate controller(140) controls a data sampling rate by using the sampling information.
Patent KR-20080052418-A (KR)
Title: Speed detection device
Inventor: AONO RYUJI
IPC: G01P3/44
Filed: 2007-12-04
Abstract: A speed detection device is provided to high-precisely detect the moving velocity and angular velocity of a moving object by periodically sampling the coordinates which indicate the location of the moving object and using the coordinates. A memory unit stores a plurality of preset tentative angles and a trigonometric function value corresponding to each preset tentative angle. A first register stores first actual coordinates(x1,y1) of a moving object obtained by a first sampling. A second register stores second actual coordinates(x2,y2) of the moving object obtained by a second sampling. A first calculation unit calculates first calculational coordinates represented by addition or subtraction between the x1 and a value as a result of shifting a figure of the y1 on the basis of the trigonometric function value. A second calculation unit calculates second calculation coordinates represented by the addition or the subtraction between the y2 and a value as a result of shifting a figure of the x2 on the basis of the trigonometric function value. A third calculation unit adds the tentative angles used in the calculation of the first or the second calculation unit. The first and the second calculation units calculate the first and the second calculational coordinates so that the first actual coordinates and the second actual coordinates approach each other.