baber/WOPTO huggingface dataset:
Patent KR-20160089776-A (KR)
Title: Samgyetang using black soybean and manufacturing method thereof
Inventor: YU HYEOK JAE
IPC: A23L11/00
Filed: 2015-01-20
Abstract: The present invention relates to Samgyetang (Korean traditional chicken soup with ginseng) using black soybeans and to a method of manufacturing the same. More particularly, the present invention is characterized by including the following steps: inputting medicinal herbs including kalopanax, astragalus roots, and Acanthopanax senticosus into water and heating the resultant mixture to prepare broth; soaking black soybeans in water; putting the black soybeans, which has been soaked, into water to boil; pulverizing the boiled black soybeans to prepare for a next step; thoroughly washing and trimming a chicken; filling the abdominal cavity of the chicken with ginseng, glutinous rice, jujubes, and garlic to prepare for a next step; putting the prepared chicken into the prepared broth to heat; and putting the pulverized and boiled black soybean into the boiled Samgyetang to additionally heat. The present invention has advantages of giving new flavor to Samgyetang and enhancing a nutritional value thereof, thus promoting consumption thereof. In addition, since nutrients of broth can be sufficiently taken as the pulverized black soybeans are ingested together, the present invention also has an advantage of encouraging a person who takes in Samgyetang to keep his/her health.
Patent KR-20150016993-A (KR)
IPC: G02B5/08
Filed: 2015-01-21
Abstract: An objective of the present invention is to provide a reflective sheet which can prevent damage and adherence of a stacked surface of a back side of a light guide plate while not being prone to bending due to heat generated from a light source and a backlight unit employing the reflective sheet to increase brightness and make the brightness uniform. The present invention relates to the reflective sheet of the backlight unit for reducing light loss includes: a sheet body having a sheet shape; and a fiber-assembly layer located on one side of the surface of the sheet body, in which the fiber-assembly layer has plurality of fibers and gaps between the fibers. In the backlight unit having the reflective sheet located on the back side of the light guide plate, since the reflective sheet passes through the fiber-assembly layer to make connect with the light guide plate, damage to the back side of light guide plate can be prevented.
Patent KR-20160091529-A (KR)
Inventor: PARK KYUNG HOON
IPC: H01L29/786
Filed: 2015-01-23
Abstract: The present invention relates to a method for manufacturing an organic light-emitting display device, which comprises the steps of: stacking a data electrode layer; forming a source electrode, a drain electrode and a pad electrode by patterning the data electrode layer; stacking a first organic insulation layer on the source electrode, the drain electrode and the pad electrode; forming a via hole corresponding to the source electrode or the drain electrode on the first organic insulation layer by using a one-tone mask; forming an organic light-emitting element having an anode electrode electrically connected to the source electrode or the drain electrode, and including an organic light-emitting layer and a cathode electrode; and etching the remaining organic matters with a part of the first organic insulation layer covering the pad electrode. The organic light-emitting display device according to the present invention can include a pad unit without concerning about corrosion.
Patent KR-20150020649-A (KR)
IPC: G06F3/14
Filed: 2015-01-26
Abstract: Disclosed in the present invention are a mobile terminal and a method for controlling the same. The mobile terminal includes a body; a camera provided in at least one side of the body to photograph an image; a display to display the image photographed by the camera; and a control unit to display information of at least one object and the image photographed by the camera when the body is positioned at a first angle, to display the information on a map corresponding to a present position of the body by overlapping the information and the map when the body is positioned at a second angle, to change to a state of displaying the map and the information overlapped with the map in the state that the information and the image photographed by the camera are displayed according to inclination angles of the body, and to change a state of the camera from an activated state to a deactivation state when the map is fully displayed on the display. According to the present invention, the information is grouped and displayed according to motions of the body, thus providing a state in which necessary information can be easily selected.
Patent KR-20160093778-A (KR)
Inventor: KIM HONG JIP
IPC: H05H1/24
Filed: 2015-01-29
Abstract: The present invention relates to a flat type low-temperature plasma device having an excellent purification effect without an expensive material and a harmful gas processing device comprising the same. Provided is the flat type low-temperature plasma device which comprises: two electrodes; a spacer installed between the electrodes and configured to form an air flow path between the two electrodes; and a glass layer installed between the spacer and any one of the two electrodes and including soda-lime based glass.
Patent KR-20160096362-A (KR)
Title: End cell heater for fuel cell and fuel cell having the same
Inventor: GU JUNG SAM
IPC: H01M8/24
Filed: 2015-02-05
Abstract: The present invention relates to end cell heaters for a fuel cell and a fuel cell comprising the end cell heaters. Each of the end cell heaters comprises: a support which is formed in a plate shape, and in which a fuel flow path and an air flow path are formed to penetrate opposite surfaces on each of opposite sides of the support; a heating unit which is disposed in the support, and which generates heat; and conduction blocks which are combined with the support to penetrate the opposite surfaces of the support. The fuel cell comprising the end cell heaters comprises: a fuel cell stack in which unit cells are stacked, and in which fuel flow paths and air flow paths are formed to penetrate opposite surfaces of the fuel cell stack in a stacked direction; and the end cell heaters which are combined with the fuel cell stack, which are stacked outside the outermost unit cells among the unit cells, and through which the flow paths are connected. Accordingly, the end cell heaters are disposed outside end cells disposed at opposite ends of the fuel cell stack, and thus water inside the end cells of the fuel cell stack can be prevented from freezing, thereby improving initial start ability of the fuel cell during cold start of the fuel cell in the winter.
Patent KR-20160097904-A (KR)
Inventor: HWANG GYU SEOK
IPC: E03F5/14
Filed: 2015-02-10
Abstract: 본 발명은 집수정의 거름망에 관한 것으로서, 하우징에 상단에서 하방으로 일정높이만큼만 물이 배수되도록 하는 다수의 배수공을 형성하여, 물의 유입량에 따른 수압이 작용하여도 이물질이 용이하게 외부로 배출되지 않고 하우징의 내측에 적층됨으로써, 배수구로 이물질이 임의 배출됨에 따른 막힘되는 것을 방지하여 효율성을 극대화하는 데 그 목적이 있다. 
이를 위해 본 발명은, 집수정에 구성되어 물과 유입되는 이물질을 걸러지도록 하는 집수정의 거름망에 있어서, 집수정(7)에 안착상태가 유지되도록 받침력을 제공하는 받침프레임(1100); 상기 받침프레임(1100)에서 내측으로 경사지게 형성되어 물의 유입이 용이하도록 하는 경사부(1200); 및 상기 경사부(1200)의 끝단에서 내측으로 연장되는 함체형상의 하우징(1300)을 포함하고; 상기 하우징(1300)에는 상단에서 하방으로 일정높이까지만 물이 외부로 배수되고 이물질은 내측 하단에 적층되도록 하는 다수의 배수공(1310);을 포함하는 것을 특징으로 한다.
Patent KR-20150095215-A (KR)
Inventor: HANASHIMA TAKEO
IPC: H01L21/02
Filed: 2015-02-11
Abstract: The present invention provides a method for manufacturing a semiconductor device capable of improving productivity of a film formation process and film quality without using a plasma when forming a film on a substrate using a base gas and a reaction gas. The method for manufacturing a semiconductor device according to an embodiment of the present invention comprises: a process of supplying a base gas to a substrate in a processing room; a process of emitting the base gas in the processing room from an exhaust system; a process of supplying a reaction gas having a chemical structure different from the base gas to the substrate in the processing room while blocking the exhaust system to fill the processing room with the reaction gas; and a process of performing a cycle for asynchronously performing a process of emitting the reaction gas in the processing room from the exhaust system a prescribed number of times to form a film on the substrate.
Patent KR-20160103602-A (KR)
Inventor: PRUSHINSKIY VALERIY
IPC: G09F9/30
Filed: 2015-02-24
Abstract: The present invention provides a foldable display apparatus capable of being freely modified according to a purpose of use. According to one embodiment of the present invention, the foldable display apparatus comprises: a foldable display including a first and a second region neighboring in a horizontal direction, and a third and a fourth region neighboring in the horizontal direction; a first body placed on the rear surface of the first area; and a second body placed on the rear surface of the fourth region. The foldable display has: a first state unfolding the foldable display to make the first body support the first region and make the second body support the fourth region; and a second state folding the foldable display to make the first body support the first and the second region, and make the second body support the third and the fourth region.
Patent KR-20160057957-A (KR)
Inventor: LEE JONG MOON
IPC: A47G1/14
Filed: 2015-03-03
Abstract: The present invention relates to an easel including a tilting unit. The easel including the tilting unit includes: a main frame having a support on the front; a first support supporting the main frame as the upper end is connected to the main frame to rotate; and a tilting unit controlling an inclined angle of the first support on the main frame as one end is connected to the main frame to rotate and the other end is connected to the first support to rotate, wherein the other end is connected to be detached in order for a position to be controlled in a vertical longitudinal direction of the first support. So, the easel can freely adjust the inclination angle and can surely maintain the adjusted inclination angle.
Patent KR-20160029633-A (KR)
Inventor: BYUN GI YOUNG
IPC: G06K19/077
Filed: 2015-03-04
Abstract: According to an embodiment of the present invention, an electronic price display system comprises: at least one electronic price display device to display product information supplied from an electronic price display server; an electronic price display relay to transfer data transmitted between the electronic price display server and the electronic price display device; and a display calibration apparatus to determine a calibration time point of a display disposed on the electronic price display device, and transmit a display calibration command to the electronic price display device via the electronic price display relay if the display needs to be calibrated. The electronic price display device can calibrate the display according to the received display calibration command.
Patent KR-20150105609-A (KR)
Inventor: KIM NAM JIN
IPC: A61L9/01
Filed: 2015-03-06
Abstract: Disclosed is a method for manufacturing a natural deodorant for spray. The method for manufacturing a natural deodorant, in accordance with the present invention, comprises: a S1 step of preparing a solvent by mixing ethoxylated fatty alcohol, isopropyl alcohol, sodium polyacrylate and water, and stirring the same; a S2 step of making an emulsion mixture by adding natural starch, citronella oil and glycerin to the solvent; and a S3 step of enhancing water solubility by adding protease, a starch degrading enzyme, sodium carbonate peroxyhydrate and a foam boosting agent to the emulsion mixture. Therefore, the present invention is eco-friendly; removes volatile organic compounds (VOCs) such as ammonia, trimethylamine, hydrogen sulfide and methyl mercaptan in the air, without causing secondary pollution in the soil, air and water; and reduces fine dust and floating germs.
Patent KR-20150039185-A (KR)
IPC: C04B33/02
Filed: 2015-03-17
Abstract: A ceramic composition of the present invention comprises: a ceramic resin; and a dispersion medium and an inorganic filling material. The ceramic composition is coated on a surface of a coated material to form a piece of a great property of matter wherein voltage withstand capability, high heat resistance, and thermal conductivity are improved.
Patent KR-20160113908-A (KR)
Title: 차단기용 스위치 핸들
Inventor: YOUN YEO GWAN
IPC: H01H71/10
Filed: 2015-03-23
Abstract: 본 발명은, 키노브가 오프 표시부에 위치한 상태에서도 온 오프 개폐 스위치 장치와의 분리 및 결합이 가능하고, 상기 키노브가 오프 표시부에 위치한 상태에서 오프 모드 방향으로의 오버회동에 대한 회동방지 셋팅과, 온 모드 방향으로의 회동에 대한 회동 방지 셋팅을 할 수 있도록, 일면에 삽입홈이 형성되어 있는 회동 돌기를 구비하며 상기 회동 돌기가 핸들 몸체에 회동 결합 되는 키노브; 상기 키노브의 회동 돌기에 고정되고 삽입홈과 대응하는 위치에 통공을 형성한 회전판; 온 및 오프 모드 방향을 향해 탄력 지지 되는 상태로 회전판에 슬라이드 이동 가능하게 놓이고 탄력지지 되는 방향으로의 이동 위치와 오프 표시부로부터 오프 모드 방향으로 상기 키노브의 오버 회동에 따라 회전판의 통공을 전부 포함하도록 배열되거나 통공을 일부 가리도록 배열되는 결합공이 형성되는 슬라이드 플레이트; 상기 통공으로부터 이격 된 위치에 회전판으로부터 돌출 형성되는 가이드돌기; 상기 가이드돌기의 관통 결합을 위해 슬라이드 플레이트에 형성되고 회전판과 연동하는 가이드돌기가 반경을 가지고 온 및 오프 방향으로 회동하는 위치에 따라 슬라이드 플레이트가 탄력 지지 되는 방향으로 이동하도록 가이드홈;을 포함하여 구성되는 차단기용 스위치 핸들이 제공된다.
Patent KR-20160118567-A (KR)
Title: 상황버섯 추출물 또는 베타글루칸을 유효성분으로 함유하는 악취 저감용 조성물
Inventor: KIM HA WON
IPC: A23K1/14
Filed: 2015-04-02
Abstract: 본 발명의 상황버섯( Phellinus  species) 추출물 또는 베타글루칸(β-glucan)은 간에서 FMO 유전자군 중에서 특히 FMO3의 발현을 증가시키는 것을 확인함으로써, 상기 상황버섯 추출물 또는 베타글루칸을 이용하여 FMO3의 발현을 증가시킴으로써 악취성 휘발성분인 TMA(trimethylamine)를 무취성 비휘발성분인 TMAO(trimethylamine oxide)로 대사시킴으로써, 악취 제거 또는 저감용 사료 첨가제로 유용하게 사용될 수 있다.
Patent KR-20160119995-A (KR)
Inventor: KIM YOUNG SU
IPC: A61H9/00
Filed: 2015-04-07
Abstract: The present invention relates to an air pressure-type massage device. According to the present invention, acupressure protrusions are formed inside the air pressure-type massage device coming into contact with a human skin so that massage can be performed and blood circulation can be promoted. In addition, blood aperture protrusions are provided at certain positions so that a human blood aperture can be firmly pressed and stimulated and fatigue can be reduced. The air pressure-type massage device according to the present invention is worn on the body of a user and its air pocket having inner and outer skins expands and contracts to pressurize his or her body depending on the pressure of air injected from the outside. The inner skin of the air pocket includes the acupressure protrusions formed to protrude in a skin contact direction and the blood aperture protrusions protruding more than the acupressure protrusions and formed at certain positions of the inner skin of the air pocket.
Patent KR-20160120560-A (KR)
Inventor: SAH SUNG JIN
IPC: G06K9/00
Filed: 2015-04-08
Abstract: The present invention relates to an apparatus and a method for recognizing a user input. The apparatus for recognizing a user input comprises: a sensor for sensing an acoustic signal generated by tapping a surface of a medium; a processor for separating an initial pulse signal from the acoustic signal, and extracting signal properties of the separated initial pulse signal; and a controller for recognizing a tapping gesture based on the signal properties extracted by the processor, and generating a control signal in response to the tapping gesture.
Patent KR-20150112904-A (KR)
Inventor: CHO IN JE
IPC: G09B7/02
Filed: 2015-04-08
Abstract: The present invention relates to a method and a device to manage learning content. The device includes: a question generating module providing a question making menu to a user terminal, and generating a question by receiving the question, generated through question generation work, from the user terminal; a tag setting module receiving tags, set to display information about the question for a user, from the user terminal in order to set the tags as a tag of the question; a registration question generating module generating a registration question from a question making result synthesized with the tags and the question; and a question providing module providing a registration question, selected among registration questions, to the user terminal after a request from the user terminal.
Patent KR-20160123097-A (KR)
Title: An automobile cooling and heating device using solar energy
Inventor: LEE JEONG YONG
IPC: B60H1/12
Filed: 2015-04-15
Abstract: The purpose of the present invention is to solve a heating and cooling problem of an automobile when the automobile stops by equipping an automatic temperature controlling function through an air conditioner, a solar cell, and a computer installed in the automobile, and connecting a compressor, a cooling fan, a blowing fan, and a switch of a hot-wire to an internal circuit of the automobile while configuring an additional circuit.
Patent KR-20150124901-A (KR)
Title: Dielectric thin films based Calcium Copper Titanate and method for fabricating the same
Inventor: CHOI JI WON
IPC: C23C14/08
Filed: 2015-04-27
Abstract: The present invention relates to a calcium-copper-titanium oxide-based dielectric thin-film having a high dielectric constant and low dielectric loss properties and a manufacturing method thereof. According to the present invention, the dielectric thin-film is prepared by mixing a dielectric thin-film with CaxCuyTizO_12 (0<x<2, 2<y<4, 3<z<5), CuO, and TiO_2. The atomic ratio of Ca, Cu, and Ti in the dielectric thin-film can be represented as: Ca:Cu:Ti=0.6-1.4:2.9-3.8:4.5.
Patent KR-20160130088-A (KR)
Inventor: LYU JAE GOO
IPC: H02B11/133
Filed: 2015-04-30
Abstract: 본 발명의 일 실시예는 핸들의 삽입과 동시에 록킹이 해제되도록 하고, 핸들을 분리할 때는 자동적으로 록킹이 걸리도록 개선한 회로 차단기의 입출장치를 제공하는 것으로, 본 발명의 일 측면에 따른 회로 차단기의 입출장치는 회로 차단기의 일측에 제공되는 하우징; 상기 하우징의 내부에 설치되고, 일측에 전원공급 조작을 위한 핸들이 삽입되어 결합되는 결합부가 제공되어 상기 핸들의 작동에 의해 진퇴 이동하는 크래들 이동부; 상기 크래들 이동부의 이동에 연계하여 회전하며 상기 하우징의 외측으로 인출되어 작동상태를 표시하는 인디케이터부; 및 상기 핸들이 상기 크래들 이동부의 결합부에 결합되도록 잠금 해제되고, 상기 핸들의 분리시 상기 결합부를 차폐하여 잠금하는 로킹유닛;을 포함한다.
Patent KR-20160131221-A (KR)
Title: 수중 온도 수집 장치
Inventor: JUNG SUNG HEON
IPC: G08C17/02
Filed: 2015-05-06
Abstract: 본 발명은 수중 온도 수집 장치에 관한 것으로서, 수집된 수중의 온도 데이터를 마이크로 프로세서를 이용하여 IP 패킷화하여 육상으로 와이파이 통신대역을 이용하여 전송하는 수중 온도 수집 장치에 관한 것이다. 이를 위해 수중에서 깊이 별로 위치되어 각 깊이에 따른 수중의 온도를 감지하는 복수의 수중 온도 센서부, 센서부로부터 수중 깊이별 각각의 온도 데이터를 시리얼 통신을 통해 입력받으며, 시리얼 온도 데이터를 IP 패킷화하는 마이크로 프로세서부, 및 마이크로 프로세서부와 이더넷 통신을 통해 IP 패킷화된 온도 데이터를 입력받으며, 와이파이 대역을 사용하여 IP 패킷화된 온도 데이터를 방사하는 방사형 RF 무선 안테나부를 포함하는 수중 온도 수집 장치가 개시된다.
Patent KR-20150131994-A (KR)
Inventor: YAMAMOTO KAZUYOSHI
IPC: C07D209/46
Filed: 2015-05-13
Abstract: Provided are a compound with excellent transparency and high refractivity, a resin composition with low shrinkage, containing the compound, and a cured product high SCRATCH RESISTANCy and adhesiveness and sufficient hardness. More specifically, the present invention relates to a compound (A) which can be obtained by reacting alkylene carbonates or alkylene oxides with a phenol compound produced from a phenolphthalein derivative and an amino benzene derivative and then carrying out a condensation and dehydration reaction under a presence of methacrylic acid and an acid catalyst. The present invention further relates to a resin composition containing the compound (A).
Patent KR-20160134263-A (KR)
Inventor: CHOI KWANG MIN
IPC: G06F3/12
Filed: 2015-05-15
Abstract: The present invention provides an apparatus and a method for generating a bitmap of a three-dimensional model. According to an embodiment of the present invention, the apparatus for generating a bitmap of a three-dimensional model comprises a plane generation part, a rasterization part and a bitmap generation part. The plane generation part generates a plurality of planes including an outline of a section formed by cutting a three-dimensional model in a direction in parallel to an output direction of a three-dimensional printer. The rasterization part rasterizes each of the planes in a direction vertical to the output direction, calculates a weight value of a pixel by using a weight value transition point based on an outline segment forming the outline, and determines a type of each pixel generated by the rasterization based on the weight value. The bitmap generation part combines pixels having an equal coordinate in the output direction to generate a bitmap with respect to the plane vertical to the output direction. According to the present invention, standby time for outputting can be reduced.
Patent KR-20160136117-A (KR)
Inventor: LEE DONG CHEOL
IPC: F16H48/30
Filed: 2015-05-19
Abstract: 본 발명은 차동제한장치를 갖는 농업용 운반차에 관한 것으로 내측에 기전력을 공급하는 동력원이 구비되는 차체프레임과, 상기 차체프레임의 상부에 구비되어 화물을 적재하는 적재함과, 상기 차체프레임에 연결 구비되며, 일측이 차체프레임에 연결되고 타측이 적재함에 연결되어 적재함이 덤핑 동작 하도록 하는 실린더와, 상기 차체프레임의 하부 전후방에 각각 구비되어 동력원으로부터 기전력을 공급받아 작동되며, 일측에 회전력을 전달하는 제1기어가 각각 구비되는 한 쌍의 모터와, 상기 차체프레임의 하부 전후방에 각각 연결 구비됨과 아울러 모터로부터 회전력을 원통형으로 형성된 제1구동축의 일측에 축설되는 제2기어를 통해 전달받으며, 제2기어의 일측에는 제2기어와 연결되어 회전력을 전달받는 제1피동기어가 형성되고, 제1피동기어의 일측 상하부에는 각각 제1피동기어로부터 회전력을 전달 받음과 아울러 원통형의 연결축으로 연결되는 한 쌍의 피동기어가 구비되며, 피동기어의 일측에는 피동기어로부터 회전력을 전달 받음과 아울러 일측에 관형으로 돌출된 LSD결합구 및 LSD결합구의 일측에서 내측으로 내입되는 요입홈을 갖는 제2피동기어가 구비되고, 제2피동기어의 일측에는 타측 외주면이 LSD결합구의 내주면 이격되어 원통형으로 형성됨과 아울러 타측 외면에 내입되는 슬라이딩홈을 갖는 제2구동축이 구비되며, 제2구동축의 슬라이딩홈 외주면에는 슬라이딩홈을 따라 축상으로 슬라이딩 가능하면서도 내측이 슬라이딩홈에 걸림되어 회전력을 전달하도록 함과 아울러 타측에는 요입홈 대응되게 돌출되는 돌부를 갖는 LSD가 구비되고, LSD의 외면에는 내측에 베어링이 삽입되어 LSD가 내측에서 원활히 회전하면서도 외측에 구비되는 레버의 동작으로 인해 LSD가 일측에서 타측으로 이동되도록 하는 LSD가이드가 구비되는 한 쌍의 차동제한부와, 상기 차동제한부의 제1구동축 및 제2구동축에 각각 결합되는 바퀴와, 상기 차체프레임의 후방에 선회하도록 설치되어 연결바를 통하여 바퀴가 선회되도록 바퀴와 각각 링크결합되며, 전후진 및 정지, 속도제어를 위한 제어부가 내측에 구비되고, 외측에 조향핸들이 구비되는 조향부로 이루어진다.
Patent KR-20150135747-A (KR)
Title: Cloud system of smart devices-based spatial information centric for senior and method for providing contents using it
Inventor: HER DA HYE
IPC: G06Q50/10
Filed: 2015-05-22
Abstract: According to the present invention, disclosed are a space information centered cloud system based on a smart device for the senior and a method for providing content by using the same. The space information centered cloud system based on a smart device for the senior includes: a user terminal for activating an application, collecting emotion information of a user with respect to content through the activated application every time the user uses the content, and playing the content by applying the collected emotion information to the content; and a service server, linked to the user terminal, for providing content selected by the user.
Patent KR-20150138053-A (KR)
Inventor: ULRICH ROBERT R
IPC: H04W88/02
Filed: 2015-05-27
Abstract: The described embodiments perform a proximity unlock operation. For the proximity unlock operation, a first electronic device in a locked operating state detects that an authorized second electronic device is in proximity to the first electronic device. Based on detecting the authorized second electronic device in proximity to the first electronic device, the first electronic device is transited from a locked operating state to an unlocked operating state. In the described embodiments, the transition to the unlocked operating state occurs without the user performing a manual authentication step that is performed in existing electronic devices to cause the transition from the locked operating state to the unlocked operating state.
Patent KR-20160139426-A (KR)
Title: Apparatus and method for transmitting and receiving feedback information in a wireless communication system
Inventor: KIM JUNG JU
IPC: H04B7/04
Filed: 2015-05-27
Abstract: The present invention relates to a fifth generation (5G) or pre-5G communication system which supports a data transfer rate higher than for a fourth generation (4G) communications system such as long term evolution (LTE). Embodiments of the present invention provide a beam selection and feedback device and a method thereof which minimize complexity and an overhead without performance degradation in a beamforming multiple input multiple output (MIMO) wireless communications system. According to an embodiment of the present invention, a terminal device of the wireless communications system comprises: a control unit which selects at least one beam combination among a plurality of transmission and reception beam combinations; and a transmitter which transmits feedback information, which includes indication information indicating whether the at least one beam combination is the same as a previous optimal beam combination.