baber/WOPTO huggingface dataset:
Patent KR-20100014444-A (KR)
Title: Pressure sensitive adhesive dispersion having high solids and low viscosity and method of making same
Inventor: TSENG CHI MING
IPC: C09J4/02
Filed: 2008-01-29
Abstract: A water-based pressure sensitive adhesive dispersion is provided. The dispersion is a reaction product of a monomer solution and an aqueous phase. The monomer solution contains from about 40 to 70 parts water-insoluble monomer selected from the group consisting of alkyl acrylate, methacrylate, vinyl ester, and combinations thereof and from about 0.01 to 0.2 parts monomer soluble free radical initiator. The aqueous phase includes from about 1 to 20 parts latex binder, from about 0.1 to 2 parts surfactant, from about 0.02 to 1 parts polymeric suspension stabilizer, and water as a remaining balance. All parts are given as parts by weight per 100 parts of the dispersion. The dispersion has a solid phase of at least 60 weight percent, a viscosity of less than about 300 centipoise, measured at about 23°C, and a bimodal particle size distribution.
Patent KR-20100015520-A (KR)
Title: An implant including a coil and a stretch-resistant member
Inventor: STRAUSS BRIAN MICHAEL
IPC: A61F2/06
Filed: 2008-02-27
Abstract: This invention is directed to implantable coils and, more particularly, to a coil implant having a stretch-resistant member internal to the coil. The implant of the invention is able to freely articulate and torque prior to delivery. Once delivered, the implant is no longer stretch resistant and is therefore able to substantially conform to the vascular site.
Patent KR-20100015525-A (KR)
Title: A method for mobility management in a system architecture supporting mobility between different access systems
Inventor: THIEBAUT LAURENT
IPC: H04B7/26
Filed: 2008-04-08
Abstract: One object of the present invention is a method for Mobility Management MM in a system architecture supporting mobility between different access systems, such as a legacy 3G system and a LTE long term evolution system, having separate Core Network CN-level MM entities while using common MM Area, said method comprising a step of :-when a User Equipment UE leaves the coverage of a first one of said access systems where it is in a Non Radio Connected state as seen from Radio Access Network RAN, but seen in Connected State from CN-level MM entity, such as in a URA-PCH state of legacy 3 G system, for the coverage of a second one of said access systems where it is in Idle state as seen from CN-level MM entity, putting the UE into Idle state as seen from CN-level MM entity of said first access system.
Patent KR-20090113389-A (KR)
Title: Recovery of hydrophobicity of low-k and ultra low-k organosilicate films used as inter metal dielectrics
Inventor: CHAKRAPANI NIRUPAMA
IPC: H01L21/31
Filed: 2004-10-27
Abstract: Often used to reduce the RC delay in integrated circuits are dielectric films of porous organosilicates which have a silica like backbone with alkyl or aryl groups (to add hydrophobicity to the materials and create free volume) attached directly to the S:L atoms in the network. Si-R bonds rarely survive an exposure to plasmas or chemical treatments commonly used in processing; this is especially the case in materials with an open cell pore structure. When Si-R bonds are broken, the materials lose hydrophobicity, due to formation of hydrophilic silanols and low dielectric constant is compromised. A method by which the hydrophobicity of the materials is recovered using a novel class of silylation agents which may have the general formula (R2N)xSiR'y where X and Y are integers from 1 to 3 and 3 to I respectively, and where R and R' are selected from the group of hydrogen, alkyl, aryl, allyl and a vinyl moiety. Mechanical strength of porous organosilicates is also improved as a result of the silylation treatment.
Patent KR-20090127445-A (KR)
Title: Voice mail system
Inventor: YOSHIDA KENJI
IPC: G10L13/02
Filed: 2006-05-19
Abstract: A link table is created and each dot pattern is correlated with audio information so that when the dot pattern is read by a scanner, the audio information correlated with the dot pattern is reproduced from a speaker. Thus, by printing a dot pattern on the surface of an illustrated book or a card, it is possible to reproduce audio information corresponding to a pattern or a story of an illustrated book or a character drawn on a card. Moreover, by the link table, it is possible to correlate the dot pattern with new audio information or release and modify the correlation.
Patent KR-20100017996-A (KR)
Title: 의자용 흉곽 및 겨드랑이 받이
Inventor: KIM SUN WHAN
IPC: A47C7/00
Filed: 2010-01-04
Abstract: 본 발명은 두개의 등받이 외판(1)을 포함하고 있는 의자용 흉곽 및 겨드랑이 받이에 있어서, 상기 두개의 등받이 외판(11)이 서로 측방향으로 떨어져 있고 시트표면(20)에 수직인 축방향으로 볼 때 오목하고, 상기 시트표면(20) 위에 배치된 횡방향 수평축 방향으로 볼 때 볼록하게 형성되어 있으며, 각각의 상기 등받이 외판(11)의 상, 하단에서 탄성요소의 단부들이 중간 가로대(13)에 단단히 연결된 것을 특징으로 하며, 또한 상기 탄성요소는 등받이 외판(11)의 중앙지역에서 고무원통부재(15)에 의하여 상기 중간 가로대(13)에 결합되어 있는 것을 특징으로 하며, 상기 등받이 외판(11)의 후면에 큐션용 패드(16)가 형성된 것을 특징으로 하는 의자용 흉곽 및 겨드랑이 받이를 특징으로 한다.
Patent KR-20110079966-A (KR)
Inventor: OH SEUNG JIN
IPC: F25D23/02
Filed: 2010-01-04
Abstract: 본 실시 예는 냉장고에 관한 것이다. 일 측면에 따른 냉장고는, 제 1 저장실을 형성하는 캐비닛; 상기 제 1 저장실을 개폐시키는 제 1 도어; 상기 제 1 도어에 결합되며, 제 2 저장실을 형성하는 수납 장치; 상기 제 1 도어에 연결되어 상기 제 2 저장실을 개폐시키는 제 2 도어가 포함되고, 상기 수납 장치에는, 상기 제 2 저장실을 형성하는 프레임; 상기 프레임이 형성하는 상기 제 2 저장실에 위치되는 바스켓 장착부; 및 상기 바스켓 장착부에 슬라이딩 장착되는 바스켓이 포함된다.
Patent KR-20110081513-A (KR)
Inventor: JEONG JIN HANG
IPC: A44B11/00
Filed: 2010-01-08
Abstract: PURPOSE: A belt buckle equipped with a data storing unit is provided to facilitate the carrying of USB and to remove the possibility of loss of the USB. CONSTITUTION: A belt buckle equipped with a data storing unit is constituted as follows. In the belt buckle(10), the front thereof is opened, a receiving space is formed. In the opened front side, an opening and shutting device(14) is installed in order to pivot since one end thereof is shaft-coupled. In the receiving space, a USB hub is formed so that a USB plug can be inserted into one side wall and is fixed.
Patent KR-20110085625-A (KR)
Title: Digital broadcast receiver and method for managing a content
Inventor: KIM JI HOON
IPC: H04N7/167
Filed: 2010-01-21
Abstract: PURPOSE: A digital broadcasting receiver and content management method are provided to protect a privacy of a user. CONSTITUTION: A first control unit(780) checks characteristic information of the requested content if a content request command is received. The first control unit controls a screen requesting an input of a content password according to checking result to be displayed. The first control unit performs authentication based on content password if a content password is inputted. The first control unit transmits execution request about the content according to an authentication result. A second control unit(790) receives execution request about the content from the first control unit. The second control unit controls content to be received from a server.
Patent KR-20110087005-A (KR)
Title: Mobile terminal and method for controlling the same
Inventor: KIM MYO HA
IPC: H04W4/12
Filed: 2010-01-25
Abstract: PURPOSE: A mobile terminal is provided to effectively prevent a post request of an instant message communication with the user who a sender does not want. CONSTITUTION: A control unit(180) receive a registered counterpart list which is registered from an instant message server. The control unit sets a first sender from the sender list to a communication blockage. The control unit sets a second sender from the sender list to communication permission. If the first sender is set to the communication blockage, the control unit receives an instant message of the first sender or transmits the instant message to the first sender.
Patent KR-20110087776-A (KR)
Title: The hangar
Inventor: CHOE HO UNG
IPC: H01L31/04
Filed: 2010-01-27
Abstract: PURPOSE: A hangar is provided to reduce the area for maintenance of aircrafts because a plurality of aircrafts are arranged in the radial direction and enable central control. CONSTITUTION: A hangar comprises a main building(10), a plurality of aircraft docking units(20), an outer wall part(30), and an aircraft gate(40). The main building is arranged in a radial structure in the center. The aircraft docking units are formed in a lower floor of the main building and allow the entry of the head of each aircraft. The outer wall part is formed outside the main building with the area and height to accommodate the aircrafts entering the aircraft docking units completely. The aircraft gate is formed on the sidewall of the outer wall part.
Patent KR-20110093455-A (KR)
Title: Active matrix electrochromic device array and method of manufacturing the same
Inventor: CHUN YOUNG TEA
IPC: G02F1/161
Filed: 2010-02-12
Abstract: PURPOSE: An active electro-discoloration element array and manufacturing method thereof are provided to prepare the partition structure for electrolyte separation. CONSTITUTION: An active electro-discoloration element array includes as follows. A first substrate(10) has a plurality of pixel electrode(27) which is arranged in two dimensional, a has a pixel circuit(20) including a thin film transistor(21) which is connected to a plurality of pixel electrode, and has a plurality of an electro-discoloration layer(50) which is formed on a plurality of pixel electrode. A second substrate(80) has a facing electrode(82), has a reflective layer(86) on the facing electrode and is combined separately with the first substrate to face the reflective layer and the elector-discoloration layer. A partition wall(40) separately supports the first substrate and the second substrate by being arranged between the first substrate and the second substrate and partitions spaces corresponding to a plurality of electro-discoloration layer between the first substrate and the second substrate. Electrolyte is filled in a space portioned by the first substrate, the second substrate, and the partition wall.
Patent KR-20110081008-A (KR)
Title: Fault detecting and predicting apparatus for metering out fit
Inventor: JANG WANG SAM
IPC: G01R19/165
Filed: 2010-02-18
Abstract: PURPOSE: A fault detection and prediction apparatus of instrument transformer is provided to immediately confirm a MOF fault generation and inform a power supplier of it, to quickly perform MOF repair or replacement and to prevent faults extended to a wrong capacity prediction due to MOF faults. CONSTITUTION: A detection unit(50) compares data inputted from a current transformer detecting current flowing on a primary side R, S, T, of the MOF(30) with data inputted from the current transformer detecting current flowing on a secondary side R, S, T, of the MOF and a neutral conductor(N) and checks a leakage current of the secondary side neutral conductor of the MOF, a load unbalance of the secondary side R, S, T, of the MOF and the neutral conductor, zero-phase sequence current, and high-frequency current. The detection unit verifies a MOF fault generation based on check results, predicts a phase difference based on a data comparison between the primary side current detection of the MOF and the secondary side current detection of the MOF, a phase difference compared with MOF standard data with predetermined a ratio error and a lifespan of the MOF based on the ratio error difference and controls to inform the power supplier of the MOF fault generation and the MOF lifespan prediction data. A communications unit(60) transmits the MOF fault generation and text messages or alarming signals as to the MOF lifespan prediction on the basis of a control of the detection unit to communications terminal of a person in charge of maintenance and the power supplier.
Patent KR-20100101534-A (KR)
Title: Reusable paper media with compatibility markings and printer with incompatible media sensor
Inventor: KAZMAIER PETER M
IPC: B41M5/00
Filed: 2010-03-08
Abstract: PURPOSE: A printer having an incompatibility medium sensor and a recyclable paper medium is provided to reduce the error of a printing process by supplying an incompatibility medium to a separate medium tray. CONSTITUTION: A printing system includes an input tray storing an image formation media, an inkless printing device, a transfer path transferring the image formation media from the input tray, and a sensor which outputs a signal and detects whether the signature material(20) exists on the image formation media. Based on the signal power from the sensor, a determination part determines whether an image is printed on the image formation media which is supplied through the sensor.
Patent KR-20110066824-A (KR)
Title: Apparatus and method for trusted secure booting of iptv settop box
Inventor: PARK YOUNG SOO
IPC: H04N5/44
Filed: 2010-03-09
Abstract: PURPOSE: A confidence security device and method thereof are provided to perform integrity authentication about each boot roader, operating system, and application when booting the IPTV set-top box. CONSTITUTION: Power source of an IPTV set-top box is turned on(S102). An RTM/RTV(Root of Trusted for Measurement/Root of Trusted for Verification) is operated(S104). An integrity of a boot loader is verified(S108). The boot loader is processed(S110). The integrity of an operating system is verified(S114). The operating system is processed(S116). The integrity of application is verified after completing a booting process(S122).
Patent KR-20110102030-A (KR)
Inventor: PARK TAE KEUN
IPC: B63B25/08
Filed: 2010-03-10
Abstract: 원유 공급시스템 및 그것을 구비한 유조선이 개시된다. 비활성기체 공급수단이 구비된 카고 탱크에 원유를 공급하는 원유 공급관에 설치되고, 원유 공급관 내로 비활성기체를 공급하는 압력보상부를 포함하며, 압력보상부는, 원유 공급관에 연결되어 비활성기체를 공급하는 비활성기체 유입관과, 원유 공급관 중 비활성기체 유입관이 연결된 부분을 감싸는 이중관과, 이중관 및 카고 탱크를 연결하여 이중관 내로 불활성 가스가 공급되도록 하는 비활성기체 공급관을 포함하는 원유 공급시스템을 제공함으로써, 카고 탱크에 원유를 공급하는 과정에서 휘발성유기화합물이 발생되는 것을 최소화 할 수 있으므로, 대기가 오염되는 것을 방지할 수 있고, 이를 위하여 별도의 에너지를 소모하지 않으며, 휘발성유기화합물의 처리를 위한 별도의 장치를 구비하는데 소요되는 비용 및 시간을 절약 할 수 있다.
Patent KR-20100103433-A (KR)
Title: Mould for galvanoplasty and method of fabricating the same
Inventor: CUSIN PIERRE
IPC: C25D1/10
Filed: 2010-03-15
Abstract: PURPOSE: A mold for an electric fabrication and a method for manufacturing thereof are provided to perform electrolysis evaporation on a concave part after at least one cavity is charged. CONSTITUTION: A mold for an electric fabrication includes next steps. An electrical conductibility layer is evaporated on a top part(20) and a lower part(22) of a wafer(21) consisting of a silicon based material. The wafer is fixed on a substrate(23) using a bonding layer. One part of the conductive layer is eliminated on the top part of the wafer. The wafer is etched to the conductivity and one or more cavity is formed within the mold. A part(27) is formed for forming a second level on the conductive layer on the top of wafer.
Patent KR-20100106924-A (KR)
Title: Method and apparatus for layer shifting in mimo communication system
Inventor: SEO BANG WON
IPC: H04B7/04
Filed: 2010-03-18
Abstract: PURPOSE: A method and an apparatus for layer shifting in a MIMO communication system are provided to use a multi-antenna technique with an orthogonal frequency division multiple access technique while maintaining the characteristics of a single carrier frequency division multiple access signal having a low maximum/minimum power ratio. CONSTITUTION: A method for layer shifting in a MIMO communication system comprises the steps of: dividing at least one codeword comprising modulation symbols(810); mapping at least one divided codeword to plural layers; mixing the plural layers by DFT symbol unit(820); performing a DFT conversion for the mixed plural layers(830); and mapping the plural layer to at least one antenna port(840-850).
Patent KR-20110106752-A (KR)
Inventor: KIM YONG JIN
IPC: G06K17/00
Filed: 2010-03-23
Abstract: 본 발명의 일 실시예에 따른 RF EAS를 이용한 종량제 봉투 인식 시스템은 본체, 본체의 측부에 배치되는 외기 흡입 그릴, 본체의 상부에 배치되는 도어, 현재 쓰레기를 투입할 수 있는 상황인지를 시각적으로 표시하는 표시등과 도어를 개폐하기 위한 개폐 버튼과 쓰레기의 투입 결과를 청각적으로 알려주는 스피커를 구비하며 도어의 주변 상부에 배치되는 컨트롤 보드, 본체 내부에서 쓰레기가 1차로 투입되어 임시 보관되도록 형성되며 하부 투입구에는 투입구의 개폐를 위한 개폐 밸브가 구비되는 원통형의 바스켓, 바스켓의 배출구와 연통되어 형성되는 보관함을 포함하는 쓰레기 투입 설비; 및 바스켓에 원형으로 이격 형성되어 종량제 봉투에 부착된 RF EAS 태그를 감지하는 송신기 및 수신기, 송신기 안테나로부터의 송신 RF 신호를 에너지원으로 하여 LC 공진 회로를 통해 송신 RF 신호에 대한 반응 신호를 생성하여 수신기로 전송하는 상기 RF EAS 태그, 및 수신기로부터의 수신 RF 신호에 기초하여 종량제 봉투의 종류 및 용량을 판별하고 판별 결과 종량제 봉투의 종류 및 용량이 규격에 맞는 경우 도어를 닫은 후 바스켓의 배출구를 개방하여 종량제 봉투가 바스켓의 배출구를 통해 보관함에 최종적으로 투입될 수 있도록 쓰레기 투입 설비를 제어하는 컨트롤러를 포함한다.
Patent KR-20110108044-A (KR)
Inventor: JUNG WOO HYUN
IPC: B01D46/04
Filed: 2010-03-26
Abstract: 원통상의 분진 포집 용기(4)의 유입구(2)를 통해 유입된 합성가스 또는 배기가스가 내부의 고정판(6)에 고정되도록 설치된 복수개의 집진 필터(30)를 통과한 후, 분진 포집 용기(4) 상부의 배출구(7)로 배출되어, 집진 필터(30)의 표면에 분진이 포집되는 집진장치에 있어서, 상기 복수개의 집진 필터(30)를 다수의 클러스터 다발로 분리시키도록 상기 분진 포집 용기(4)에 설치되는 격벽(20)을 포함하되, 상기 집진 필터(30)의 각각은 압착식 다층 금속 메쉬로 이루어지고, 하부를 향하여 테이퍼짐에 따라, 집진 필터끼리 격리된 채로 역세정을 진행할 수 있으므로 탈리된 분진 케이크와 집진 필터를 통과한 고압의 기체 흐름이 주변의 집진 필터에 영향을 주지 않으므로 보다 안정된 집진장치의 운전이 가능하고, 집진 필터를 통과한 고압의 기체 흐름이 테이퍼진 집진 필터의 표면을 기준으로 수직방향으로 통과하여 집진 장치의 하부 방향으로 꺽어지므로 집진 필터의 표면에 포집된 분진 케이크의 모두를 탈리할 뿐만 아니라, 여러개의 집진 필터를 동시에 역세정하는 경우, 집진 필터를 통과한 고압의 기체가 합쳐져서 집진장치의 하부방향으로 큰 흐름을 유도하게 되는 효과를 가진다.
Patent KR-20100110274-A (KR)
Title: Device for thin die detachment and pick-up
Inventor: CHAN MAN WAI
IPC: H01L21/67
Filed: 2010-04-01
Abstract: PURPOSE: A thin die separating and picking-up device is provided to reduce stresses applied to thin semiconductor chips by including a plurality of moving plates. CONSTITUTION: A thin die separating and picking-up device includes a plurality of moving plates. The moving plates(12) have tetragon contact faces and include a middle moving plate and external moving plates. The contact faces of the moving plates support an adhesive film at the position of dies(14). The moving plates moves with respect to other moving plates in order to ensure a gap between dies.
Patent KR-20100113453-A (KR)
Title: Uplink signal transmission and reception using the optimized rank 3 codebook
Inventor: NOH YU JIN
IPC: H04J1/00
Filed: 2010-04-06
Abstract: PURPOSE: An uplink signal transmission and reception using an optimized rank 3 codebook is provided to reflect channel conditions in the small amount of signaling overhead by transmitting and receiving an uplink signal through an optimized 4Tx link 3 codebook. CONSTITUTION: An uplink signal is mapped to three layers, and a DFT(Discrete Fourier Transform) diffusion is performed for each of the three layer signals. Through the use of a precoding matrix selected from a pre-stored codebook, the precoding of the three layer signal is performed. The processing for SC-FDMA(Single Carrier-Frequency Division Multiple Access) symbol configuration is performed for the pre-coded signal. An SC-FDMA symbol is transmitted to a base station through 4 antennas.
Patent KR-20110117413-A (KR)
Inventor: LEE KWANG JAE
IPC: B23K26/36
Filed: 2010-04-21
Abstract: 본 발명은 레이저 빔으로 LED 기판을 가공(절단이나 크랙 형성)할 때 LED 기판에 발생하는 데미지를 제거할 수 있는 발광 다이오드 기판의 레이저 가공방법에 관한 것이다.  본 발명에 따른 발광 다이오드 기판의 레이저 가공방법은 발광 다이오드(LED : Light Emitting Diode) 기판에 레이저 빔을 조사하여 발광 다이오드 기판에 크랙을 형성하거나 발광 다이오드 기판을 절단하는 메인 가공공정과, 발광 다이오드 기판에 형성된 크랙 또는 발광 다이오드 기판의 절단면에 존재하는 파티클이 제거되도록, 크랙 또는 상기 절단면으로 레이저 빔을 조사하는 큐어링 공정을 포함한다.
Patent KR-20110119906-A (KR)
Title: Anaerobicexecise apparatus
Inventor: YOO JAE WON
IPC: A63B23/12
Filed: 2010-04-28
Abstract: PURPOSE: An anaerobic exercise device is provided to deliver the operation of an operating unit to an exercise load unit and to sense the operation of the exercise load unit. CONSTITUTION: An anaerobic exercise device includes a powertrain unit(100). The powertrain unit comprises: a frame(50) consisting of an upper beam, a lower bean, a front post, and a rear post; a left drive sprocket(57) which is installed in the upper beam and is rotated by a left arm; a right drive sprocket(55) which is installed the upper beam and is rotated by an right arm; a direction change sprocket(59) which is installed in the rear post; a driven sprocket(90) connected to a rotary shaft of a load device; and a chain(70) rotating a rotary shaft connected to an exercise load unit.
Patent KR-20100119724-A (KR)
Title: Peristaltic pump
Inventor: GAULT JOSEPH B
IPC: F04B43/08
Filed: 2010-04-30
Abstract: PURPOSE: A peristaltic pump unit is provided to miniaturize a printing machine since the peristaltic pump is installed in a modular package. CONSTITUTION: A peristaltic pump unit(30) comprises a first gear(32), blocking members(34), and a supporting member. The first gear comprises sawtooth, which engages with a driving source. The blocking members press a first transport tube to a blocking face and are respectively mounted on a first shaft. One end of the first shaft is mounted on the first gear. The support member is connected to the facing end of each shaft. A peristaltic pump comprises a housing, a motor, a worm gear, and a peristaltic pump unit. The housing forms a machine compartment and blocking surfaces. The worm gear is rotated by the motor. The peristaltic pump unit is rotatably arranged in the machine compartment.
Patent KR-20110121223-A (KR)
Title: Producting method for health functional food using silkworm powder
Inventor: CHOI JEONG HWA
IPC: A23L33/00
Filed: 2010-04-30
Abstract: PURPOSE: A producing method of health functional food using silkworm pupa powder is provided to offer a peripheral blood vessel expanding effect, a blood circulation promoting effect, and a menopausal disorder curing effect to users. CONSTITUTION: A producing method of health functional food using silkworm pupa powder comprises the following steps: mixing 0.4wt% of Dl-alpha-tocopherol, 41wt% of garlic powder, 10wt% of garlic oil, 25% of soybean oil, 5wt% of silkworm pupa powder, 5% of dried silkworm powder, 2% of soybean lecithin, 1.567wt% of L-arginine, 1wt% of crataegus cuneata powder, 0.018wt% of thiamine, 0.015wt% of riboflavin, and 3wt% of wax; and inserting the mixture into a soft gelatin capsule or a hard gelatin capsule.
Patent KR-20100119846-A (KR)
Title: Elbow fitting with removable wear member for pneumatic conveying system
Inventor: SCHNEIDER HEINZ
IPC: F16L55/00
Filed: 2010-04-30
Abstract: PURPOSE: An elbow connecting part having a detachable abrasive member for a pneumatic transportation system is provided to prevent the performance degrade of an elbow connecting part due to a seam between a detachable abrasion member and a main body. CONSTITUTION: An elbow connecting part comprises a main body member(35) and a removable abrasion member(40). The main body member has a circular influx unit(16). The elbow connection part forms a smooth circular inside. The radial inside and round discharging unit(17) of the elbow connection part is bent from the influx unit to the outlet part.
Patent KR-20110125117-A (KR)
Title: Apparatus and method for de-interlacing
Inventor: JUNG JEE HOON
IPC: H04N7/01
Filed: 2010-05-12
Abstract: PURPOSE: A device and method for de-interlacing are provided to improve accuracy to the selection of directivity by using the filter of different size. CONSTITUTION: A weighted maximum frequency filter unit(200) amends two types of primary directivity information through weighted maximum frequency operation about an edge directivity of a center pixel and a neighbor pixel. A directivity error correction unit(300) selects high correlation among two types of secondary edge directivity information. A pixel interpolation unit(400) interpolates a pixel by average of two pixels. The two pixel is located in a final edge direction detected from the directivity error correction unit.