baber/WOPTO huggingface dataset:
Patent KR-20110114201-A (KR)
Inventor: CHANG WON GYU
IPC: F16K27/00
Filed: 2010-04-13
Abstract: 본 발명은 메인밸브의 양측에 장착되는 에어벤트를 연통시켜 하나의 배출구로 에어를 배출할 수 있게 하고, 하나만 구비된 배출구를 막아 바이패스 경로를 형성하여 밸브 양단의 압력차를 감소시킬 수 있으므로 압력차에 의한 밸브의 부동작 현상을 해소할 수 있는 에어벤트 일체형 밸브체에 관한 것이다. 
이를 위한 본 발명은, 기어박스(15), 밸브스템부(14) 및 밸브몸체(11)로 메인밸브부(10)를 구성한 에어벤트 일체형 밸브체에 있어서, 상기 엔드파이프(13)의 내부와 연통되는 벤트파이프(33)를 상기 엔드파이프(13)에 주면에 접관하고 끝단에 벤트밸브(34)를 설치하되, 양쪽 엔드파이프(13)에 각각 하나씩 설치하고, 양쪽 벤트밸브(34)의 배출구가 서로 마주하게 한 벤트밸브부(30); 3방향 커넥터를 구비하고 내부에서 3방향으로 서로 연통되게 구성되며, 상기 양쪽 벤트밸브(34)의 배출구를 서로 연통되게 2개의 커넥터에 연결하고 나머지 하나의 커넥터를 배출구로 사용하는 벤트밸브연결부(40); 를 더욱 포함하여 구성된다.
Patent KR-20110115354-A (KR)
Inventor: PARK SOO GIL
IPC: C25B1/04
Filed: 2010-04-15
Abstract: 전기화학 반응을 이용하여 산소를 함유한 혼합기체(공기)로부터 수소 가스의 발생이 없는 안전한 고농도 산소 가스를 사용자에게 제공할 수 있게 함과 아울러 저소비 전력 및 저소음으로 쾌적한 환경을 조성할 수 있게 하는 고농도 산소 발생장치가 개시되어 있다. 본 발명에 따른 고농도 산소 발생장치는 공기흡입부, 공기흡입부에서 공기가 유입되고, 내부에는 전해질 용액이 담겨 전기화학적 반응이 일어나는 전해 셀, 및 전해질 용액이 담겨지고, 전해 셀에서 발생된 산소를 사용자에게 제공되게 하는 산소발생부,로 이루어진다. 전해 셀은, 평판형상의 양극판과, 평판형상의 음극판을 구비하는 전극부, 및 내부에 전해질 용액이 담겨지고 전극부를 고정시키는 공간분리부, 및 전해질 용액을 공기흡입부 및 산소발생부 측으로의 누수를 막으면서 전극부에 의해 발생된 산소를 산소발생부 측으로 투과되게 하는 기액투과부를 구비하는 전해조,로 이루어진다.
Patent KR-20110120071-A (KR)
Title: Driving apparatus of field effect transistor using photocoupler
Inventor: YEON JAE EUL
IPC: H03K17/78
Filed: 2010-04-28
Abstract: PURPOSE: A field effect transistor(FET) operation apparatus which uses a photo coupler is provided to use a discharge resistor by including the discharge resistor and Zener diode, thereby improving a bias resistor and FET turn-off speed. CONSTITUTION: A field effect transistor(FET) operation apparatus includes a photo coupler(100), a bias resistor(Ra), a discharge resistor(Rb), a Zener diode(ZD), and an FET(280). The photo coupler is used for insulation with a control circuit. The photo coupler is comprised of a light emitting diode and a photo transistor. The photo coupler comprises a high power infrared light emitting diode made of gallium-arsenic and a sensitive silicon port transistor. The photo coupler transfers light emitted in the light emitting diode to the photo transistor. The photo coupler insulates the control circuit and FET. The photo coupler outputs an inputted PWM(Pulse Width Modulation) operation signal after passing the light emitting diode and photo transistor.
Patent KR-20110122545-A (KR)
Title: Novel mutated lagerstroemia indica l. plant
Inventor: KWON HYE JIN
IPC: A01H5/00
Filed: 2010-05-04
Abstract: PURPOSE: A novel Lagerstroemia indica L. plant is provided to ensure a flame pattern and to enhance viewing value. CONSTITUTION: A mutated Lagerstroemia indica L. plant is prepared by irradiating proton beam to the seeds of Lagerstroemia indica L. using MC-50 cyclotron at 750 Gy and inducing mutation. The plant has red leaf color and the width of the plant is smaller than the width of a conventional species. The red color of the plant leaf is maintained until late fall.
Patent KR-20110123486-A (KR)
Inventor: KOO CHANG RYUL
IPC: G10K15/04
Filed: 2010-05-07
Abstract: PURPOSE: An electronic tombstone is provided to be installed in the chapel of rest in a charnel house and enable people to hear the voice of the dead any time. CONSTITUTION: An electronic tombstone comprises an upper plate(10), a base(12), a lighting unit, a microphone, a memory unit, a speaker, and a battery. The upper plate is detachably mounted and is formed from transparent crystal or acryl. Epitaph or picture is engraved on the front of the upper plate. The base supports the upper plate so that the upper plate keeps standing. The lighting unit is installed on the base to be able to throw a light on the upper plate. The microphone is installed on the base to record the voice or the favorite songs of the dead. The memory unit is installed to store sound input through the microphone.
Patent KR-20110125036-A (KR)
Title: A linear rail-rack in use with separable rack-gear
Inventor: JOUNG YEON KYOUNG
IPC: F16H19/04
Filed: 2010-05-12
Abstract: PURPOSE: A linear rail rack with a separable rack is provided to reduce moment when gear noise by making a separable rack as helical shape. CONSTITUTION: A linear rail rack with a separable rack comprises a linear rail(20), a rack(30) and a male screw. The linear rail comprises the male screw hole-a(22) and male screw hole-b(21). The rack is combined on the rear side of a female screw hole(31) in a row with the linear rail. The rack separates from the linear rail. The male screw is inserted into the male screw hole-b in order to connect a side part of the linear rail and a gear opposite side of the rack.
Patent KR-20110125280-A (KR)
Title: Adaptive cruise control method on the inclined road
Inventor: CHOI JAE BUM
IPC: B60W30/18
Filed: 2010-05-13
Abstract: PURPOSE: An adaptive cruise control method is provided to improve fuel efficiency by changing the target rate of an operator according to the slope gradient of a slop way. CONSTITUTION: A vehicle measures a target rate which an operator sets(100). Wheel acceleration is calculated(102). The vehicle performs adaptive cruise control. A vehicle acceleration are calculated according to detected wheel acceleration(104). The vehicle calculates the slope gradient of a slop way where the vehicle runs(108). The target rate is changed according to the slope gradient of the slop way(110).
Patent KR-20110125294-A (KR)
Title: Method and apparatus for inputting characters using touch screen and recording medium storing a program to execute thereof
Inventor: KIM YOUN SOO
IPC: G06F3/02
Filed: 2010-05-13
Abstract: PURPOSE: A character input method using a touch screen, character input apparatus, record medium for recording a program, and character input apparatus using the touch screen are provided to secure a wide space for consonant buttons by eliminating the one line of vowel buttons. CONSTITUTION: An input character output window(200) outputs characters in which are inputted by a keypad manipulation. An input detection unit senses a touch and a drag signal or a touch and pressure signal in which are applied in the key pad. When the touch signal is applied in a vowel button, a control unit selects a vowel stroke. When the drag or the pressure signal is applied in the vowel button, the control unit selects the other vowels according to the drag or the pressure signal.
Patent KR-20110130189-A (KR)
Title: Apparatus and method for generating ramp waveform
Inventor: KIM SUNG NAM
IPC: G09G3/291
Filed: 2010-05-27
Abstract: PURPOSE: An apparatus and method for generating a ramp waveform are provided to stably drive a plasma display panel by accurately controlling the slope of the ramp waveform. CONSTITUTION: A gate driver is connected to a control terminal of a switch and changes a voltage of a load into a ramp type by outputting a driving control signal to the control terminal of the switch. The driving control signal controls the on and off of the switch. A ramp slope compensating circuit includes a voltage sensor(110), a reference waveform generator(120), and a comparator(130). The voltage sensor senses the voltage of the load. The reference waveform generator generates the reference waveform by using the input signal. The comparator outputs a pulse signal corresponding to the driving control signal by comparing the voltage of the load with the voltage of the reference waveform.
Patent KR-20110131587-A (KR)
Title: Installation doeitneun climbing cold retention pocket bag
Inventor: JO HYUN SUK
IPC: A45F3/04
Filed: 2010-05-31
Abstract: PURPOSE: A mountain bag equipped with a cooling pocket is provided to maintain food or fruit kept in a bag fresh and cold. CONSTITUTION: A mountain bag equipped with a cooling pocket comprises: a mountain bag(2); and a silver foil type cooling pocket(1) which is fixed to the inside of the mountain bag. The mountain bag can keep food or fruits in the bag more cool and fresh.
Patent KR-20110135597-A (KR)
Title: Apparatus and method using matrix network coding
Inventor: KIM KWANG TAIK
IPC: H03M13/11
Filed: 2010-06-11
Abstract: PURPOSE: An apparatus which uses a matrix network coding process and a method thereof are provided to reduce power consumption with small hardware complexity by providing a simple encoding process and efficient decoding process. CONSTITUTION: A communication apparatus is able to be operated as one or more nodes among a source node(110-118), a transit node(130), and a destination node(150). The communication apparatus comprises a transceiver part and a control part. The transceiver part outputs a packet created by the control part. The control part processes the packet received through the transceiver part. The control part creates the new packet as a result of the above process. The control part creates the packet. The transceiver part transmits the created packet to the transit node and destination node.
Patent KR-20110136969-A (KR)
Title: 수정 볼펜
Inventor: KIM JI YONG
IPC: B43K29/05
Filed: 2010-06-16
Abstract: 본 발명은 수정 볼펜에 관한 것으로서, 기존의 상품화된 수정액(화이트)은 부피가 커서 필통에 넣기 용이하지 않으며 수정액을 자주 쓰지 않기 때문에 구입하기에 부담이 있는  문제점이 있었다.  
 이러한 문제점을 해결하기 위하여 본 발명에서는 볼펜과 수정펜의 결합 형태로 부피가 작으며 필통에 넣기 용이하며, 결합분리 가능하여 교체가능하며 꼭 필요할 때 사용할 수 있는 수정 볼펜이 제공된다. 
 본 발명에 의하면 용량이 부담스럽지 않게 적당하며 볼펜과 붙어있어 휴대하기 편하고 용량이 부족할 때 볼펜 또는 수정펜 부분을 교체 가능하도록 결합 분리 가능하도록 되어 있어 사용하기 편리하다.
Patent KR-20110137952-A (KR)
Title: Brassiere containing silver
Inventor: SONG JANG SEOP
IPC: A41C3/00
Filed: 2010-06-18
Abstract: PURPOSE: A brassiere containing silver is provided to implement excellent water-absorption, high speed drying, an antibacterial effect, a rostellum effect, and electromagnetic shielding. CONSTITUTION: A brassiere containing silver is comprised of a shock absorbing material, first to second cover layer, cups(20,30), silver(28), a printing layer, a connection rope, and a shoulder strap. The first and second cover layers cover the both sides of the shock absorbing material. The silver is selected from groups which is comprised of the first cover layer and a second cover layer.
Patent KR-20110138434-A (KR)
Title: Ash tray having perfume spray device
Inventor: LEE CHEONG YONG
IPC: A24F19/10
Filed: 2010-06-21
Abstract: PURPOSE: A bad odor preventing ash tray is provided to discharge cigarette odor to the outside of a vehicle by being installed with a ventilating apparatus. CONSTITUTION: A body(10) is formed into a cylindrical shape. A cover(20) is covers the upper side of the body. A switch(30) is pressed when the cover is opened. An aromatic agent(40) is scattered when the switch is pressed. A net(50) filters cigarette ash between the body and a ventilating apparatus(60). The ventilating apparatus is in connection with the body and is fixed a connecting hook by the body and the cover.
Patent KR-20120000426-A (KR)
Title: The control circuit for currnet progammed control swiching mode dc-dc converter
Inventor: KIM JIN HYUK
IPC: G05F1/10
Filed: 2010-06-25
Abstract: PURPOSE: The control circuit of a current driving method switch mode dc-dc converter is provided to improve the property of a line transient response by actively controlling an artificial lamp signal over an input voltage. CONSTITUTION: A current detection part(930) includes the structure of a common gate amplifier which detects the inductor current of a boost converter. A lamp signal generating unit(920) generates a predetermined current in a current waveform which is detected with the current detection part. The lamp signal generating unit recompenses sub harmonic oscillation by increasing a lamp signal which is generated. A current compensation part(940) duplicates the current flowing into the drain end of the common gate amplifier. The current compensation part lets the current re-flown to the drain end of the common gate amplifier.
Patent KR-20120001042-A (KR)
Title: Tiles joint compositions
Inventor: CHU CHANG HYUN
IPC: C04B26/14
Filed: 2010-06-29
Abstract: PURPOSE: Tile joint compositions are provided to facilitate a constructing process with respect to tile joints by mixing an epoxy resin and a hardening agent of a specific mixing ratio. CONSTITUTION: Tile joint compositions include 55-65 weight% of an epoxy resin, 25-35 weight% of an epoxy hardening agent, 4-8 weight% of a hardening agent, and 1-4 weight% of a diluent. The epoxy hardening agent hardens the epoxy resin. The hardening agent secures the desired color of tile joints. The diluent easily mixes the epoxy resin, the hardening agent, and a pigment. The epoxy resin is DGEBA. The compositions further include an ultraviolet ray screening agent, a whitening agent, an antimicrobial agent, or aromatics.
Patent KR-20120002731-A (KR)
Inventor: LA TAE SU
IPC: G11B7/005
Filed: 2010-07-01
Abstract: PURPOSE: An image reproducing device and an image reproducing method thereof are provided to improve the processing speed without requesting data by a separate front end part. CONSTITUTION: A front end unit reads out data from disk(S110). The front end unit receives a data request signal about a second address from a back end unit among a data buffering process(S130). If data about the second address exists in a first memory, the front end unit extracts data about the second address from the first memory(S140,S150). The front end unit transmits only data about the extracted second address to the back end unit.
Patent KR-20120003547-A (KR)
Title: Organic light emitting diodes containing metallocene compounds and method for fabricating the same
Inventor: JUNG DONG GEUN
IPC: C07F17/00
Filed: 2010-07-05
Abstract: PURPOSE: An organic light emitting diode is provided to decrease driving voltage and to improve luminous efficiency by inserting an interfacial layer containing metallocene compounds between a negative electrode and electroluminescent layer. CONSTITUTION: An organic light emitting diode comprises: a positive electrode and a negative electrode corresponding each other; an electroluminescent layer between the positive electrode and the negative electrode; and a first interfacial layer between the electroluminescent layer and the negative electrode. The first interfacial layer comprises metallocene compounds in the chemical formula 1. In the chemical formula 1, M is a transition metal, R^1-R^10 is respectively hydrogen, hydroxy group, halogen, or C1-C20 saturated or unsaturated hydrocarbon group capable of containing one or more hero atoms selected from B, Al, Si, O, S, N and P. X^1 and X^2 is respectively halogen group.
Patent KR-20120009856-A (KR)
Title: 안테나 및 이를 포함하는 전자기기
Inventor: PARK JONG UN
IPC: H04N5/44
Filed: 2010-07-22
Abstract: 방송신호를 수신하는 안테나 및 이를 포함하는 전자기기가 개시된다.  안테나는 방송신호를 수신하고, 수신된 방송신호가 센서의 감지신호에 따라 전자기기에 표시되는 모드기능이 제어되되, 센서에 감지신호를 송출하도록 센서에 의해 감지되는 감지대상물을 포함한다.  전자기기는 안테나를 포함하고, 안테나의 움직임 또는 탈착을 감지하고, 감지된 안테나의 움직임 또는 탈착 변화에 따른 감지신호를 송출하는 센서 및 안테나로부터 방송신호를 전달받고 센서로부터 감지신호를 수신하며, 수신된 감지신호에 대응하여 전달받은 방송신호를 표시하는 모드기능을 제어하는 기능제어수단을 포함한다.  이와 같이, 안테나의 움직임 및 탈착에 따라 방송신호를 표시하는 기능을 간편하게 제어할 수 있다.
Patent KR-20120010068-A (KR)
Title: Fabricating Method of organic luminescence emitting device
Inventor: KIM MIN SU
IPC: H01L51/56
Filed: 2010-07-23
Abstract: PURPOSE: A method for manufacturing an organic electroluminescence device is provided to prevent deterioration of the organic electro luminescence device by sealing a first substrate and a second substrate through metal seal pattern eliminating solvent. CONSTITUTION: A driving thin-film transistor and an organic electroluminescent diode are formed in the display space of a first substrate. A first metal pattern is formed in a non-display area of the first substrate. A second metal pattern(210b) is formed in the edge of a second substrate(102) corresponding to the non-display area. A metal seal pattern(200) is spread on the top of one selected between the first metal pattern and the second metal pattern. Solvent contained in the metal seal pattern is eliminated. The first substrate and the second substrate are bonded so that the metal seal pattern is bonded to the first metal pattern.
Patent KR-20110013287-A (KR)
Title: Method of manufacturing multi-gray scale photomask and pattern transfer method
Inventor: YOSHIDA KOICHIRO
IPC: H01L21/027
Filed: 2010-07-28
Abstract: PURPOSE: A method for manufacturing a multi gray scale photomask and a pattern transferring method thereof are provided to exactly control the shape of a resist pattern by using the multi gray scale photomask. CONSTITUTION: A multi gray scale photo mask has a preset transfer pattern including a semi-transmitting unit. A resist layer is formed on an object. The pattern of the multi gray scale photo mask is transferred on the resist layer. The resist property about the exposure light is grasped. The effective transmittance about the exposure light of the semi-transmitting unit is determined. The semi-transmitting unit is formed by patterning a shielding layer formed on a transparent substrate.
Patent KR-20120011639-A (KR)
Title: A laundry treatment machine and the control method of the same
Inventor: KIM MAENG CHEOL
IPC: D06F39/08
Filed: 2010-07-29
Abstract: PURPOSE: A washing machine and control method thereof are provided to prevent freeze damages by automatically draining residual water in a drainage pipe. CONSTITUTION: A control unit drains residual water by operating a drainage pump when a setup time is passed(S6, S7). When sensed water level is closed to a drainage completion water level, the control unit stops drainage(S8, S9). The control unit determines the drainage of whole residual water within a washing machine when drainage is stopped. The control unit blocks voltages by controlling a power supply unit(S10).
Patent KR-20120017179-A (KR)
Title: Uniformity rim for tire
Inventor: CHOI JI YOUNG
IPC: G01B5/00
Filed: 2010-08-18
Abstract: PURPOSE: A rim for a tire uniformity test is provided to reduce costs, to improve a working environment, and to improve a measurement reliability by reducing a deviation of measuring data even in case of repeating the tire test because a special lubricant is not coated while fitting a tire to a rim in a complete tire uniformity test. CONSTITUTION: A rim for a tire uniformity test comprises a base contact plane(4a), a flange contact plane(4b), and air holes(5). Base and flange planes(3a,3b) of a bead part(3) are contacted with and settle to the base and flange contacting planes. The bead part covers a bead core(2) of a tire(1). The air holes are formed to a circumferential direction of a rim(4) connected to the base and flange contacting planes at a constant interval. The vacuum pneumatic pressure pressurizes the flange contacting plane through the air holes. The air holes are connected to an air pipeline(7). The air pipeline is connected to a vacuum pneumatic pressure pump(6) installed in the lower side of the rim.
Patent KR-20120017712-A (KR)
Title: Structure for fixing jewellery
Inventor: PARK HEE CHUL
IPC: A44C17/04
Filed: 2010-08-19
Abstract: PURPOSE: An ornament fixing structure is provided to improve productivity by making a separate jewel attaching process unnecessary. CONSTITUTION: An ornament fixing structure comprises a rubber plate(100) and an ornament(200). The rubber plate is formed through a jewel inserting hole(110). In the front of the rubber plate, glass(300) is arranged. The rubber plate is made of a silicon material. The ornament passes through the jewel inserting hole. The glass and rubber plate are fixed to each other by a double sided tape(400).
Patent KR-20120017741-A (KR)
Inventor: SHIN DONG WOO
IPC: B60R99/00
Filed: 2010-08-19
Abstract: PURPOSE: An inspection method for vehicle electrical load is provided to inspect malfunction and aging of electrical load through calculation of internal resistance values of the electrical load because voltage and current, changing before and after the electrical load is operated, are measured by a scan tool. CONSTITUTION: An inspection method for vehicle electrical load is as follows. Electrical load(20) for inspection turns off by a scan tool in a state where starting of a vehicle turns on. From an intelligent battery sensor(30), a battery-off state is inputted. After inputting the battery-off state, the electrical load turns on by the scan tool. A battery-on state is inputted from the intelligent battery sensor in a state where the electrical load turns on. If the battery on/off state is inputted, internal resistance value of the electrical load is calculated. Inspection result is saved after deciding whether the internal resistance value is included in range of a reference resistance value of the electrical load.
Patent KR-20120017796-A (KR)
Title: Spout pouch supplying device of spout pouch packing machine
Inventor: KIM JONG YEOL
IPC: B65B43/44
Filed: 2010-08-20
Abstract: PURPOSE: A spout pouch supply device for a spout pouch packing machine is provided to enable a worker to simply couple multiple supply units, in which spout pouches are inserted, to sockets of a chain belt. CONSTITUTION: A spout pouch supply device for a spout pouch packing machine comprises sensors, a chain belt(104), supply units(110), and a transfer unit(112). The sensors are installed in a supply chute. The chain belt is installed in the end of the supply chute and is rotated by a motor(102) connected to the sensors. Multiple spout pouches are inserted into the supply units. The supply units are detachably coupled between sockets(106,108) of the chain belt. The transfer unit transfers the spout pouches from the supply units to the supply chute.
Patent KR-20120025234-A (KR)
Inventor: KIM JEE HYUN
IPC: G01M11/02
Filed: 2010-09-07
Abstract: 본 발명은 발광다이오드 소자의 결함검사 장치 및 방법에 관한 것으로, 광원부로부터 발생된 광을 분할 또는 결합하여, 기형성된 광섬유를 통해 전달하는 광커플러부; 상기 광커플러부로부터 분할된 광을 수신하여 위상 스캔하여 반사한 후, 반사된 광을 상기 광커플러부로 전달하는 위상지연부; 상기 광커플러부로부터 입사된 광을 검사하고자 하는 발광다이오드 소자에 조사하고, 상기 발광다이오드 소자로부터 반사된 광을 상기 광커플러부로 전달하는 스캐닝부; 상기 위상지연부와 상기 스캐닝부로부터 반사된 광이 상기 광커플러부로 입사되고, 입사된 광을 전기적 신호로 변환한 후, 변환된 전기적 신호로부터 상기 발광다이오드 소자에 형성된 형광물질박막에 대한 영상을 생성하는 광간섭성단층촬영부; 상기 영상으로부터 상기 형광물질박막에 대한 부피값을 연산한 후, 연산한 부피값이 기저장된 기준부피값을 초과하거나 미만인 경우, 상기 발광다이오드소자의 결함발생을 판단하는 결함판단부;를 포함하는 것을 특징으로 한다. 이러한 구성에 의해, 본 발명의 발광다이오드 소자의 결함검사 장치 및 방법은 결함발생여부를 검사하고자 하는 대상인 발광다이오드 소자를 파괴하지 않고도 상기 발광다이오드 소자에 광을 인가하여 상기 발광다이오드 소자의 결함발생을 판단할 수 있다.
Patent KR-20120025766-A (KR)
Title: Rfid device
Inventor: KANG HEE BOK
IPC: G06K19/07
Filed: 2010-09-08
Abstract: PURPOSE: An RFID(Radio Frequency Identification) apparatus is provided to improve a BLF(Backscattering Link Frequency) feature within an error range by controlling the BLF feature based on a correction value. CONSTITUTION: A clock creation unit(140) creates a clock corresponding to a wireless frequency signal. A clock correction unit(120) creates a response signal corresponding to the corrected clock value by correcting the correction value established by counting the edge of the clock. A modulation unit(110) outputs the response signal through an antenna by modulating the response signal. The clock correction unit corrects the frequency of the clock in the signal transmission section from a tag to a reader. The clock correction unit includes a clock edge counter, a register, a correction controller, and a response signal creation unit.
Patent KR-20120028037-A (KR)
Title: Gamma correction device and gamma correction method, apparatus and method for driving of display using the same
Inventor: BYUN MIN CHUL
IPC: H04N9/64
Filed: 2010-09-14
Abstract: PURPOSE: A gamma compensation apparatus and method thereof, and display driving apparatus, and driving method thereof are provided to increase playback effectiveness by correcting a gamma curve. CONSTITUTION: A signal separation unit(110) separates an input image into brightness data and chrominance data. A gamma establishment unit(120) establishes section slopes based on histogram ratio by a section. The gamma establishment unit establishes a gamma curve according to the established section slopes. A gamma compensation unit(130) corrects the brightness data. A data creation unit(140) creates a data signal based on the chrominance data and the corrected brightness data.