baber/WOPTO huggingface dataset:
Patent KR-20130049459-A (KR)
Title: Method for searching person using name of area or institution
Inventor: KIM MI YOUNG
IPC: G06F17/30
Filed: 2011-11-04
Abstract: PURPOSE: A method for providing a user search service using an area name or an organization name is provided to search for a user based on a post corresponding to the area name or the organization name, thereby supplying a desired result. CONSTITUTION: A post which plays a role as a reference is registered corresponding to an area name or an organization name(S200). The area name or the organization name is received from a user terminal(S300). Position information is received from terminals of other users(S400). Other users located within searched distance based on the post are searched(S500). Positions of the searched users are transmitted to the user terminal and are displayed(S600). [Reference numerals] (S100) Step of receiving member information from a user terminal and registering the information as a member; (S200) Step of registering a post, which plays a role as a reference, corresponding to an area name or an organization name; (S300) Step of receiving the area name or the organization name from the user terminal; (S400) Step of receiving position information from terminals of other users; (S500) Step of searching other users located within a search distance based on the post corresponding to the received area name or organization name; (S600) Step of transmitting and displaying the searched position of other users to the user terminal; (S700) Step of transmitting a message to other users according to the selection of the user terminal; (S800) Step of adding other users as friends according to the selection of the user terminal
Patent KR-20130052152-A (KR)
Title: Three dimensional image display device
Inventor: KIM TAE HYUNG
IPC: G02B30/25
Filed: 2011-11-11
Abstract: PURPOSE: A stereoscopic image display device is provided to maintain three-dimensional brightness regardless of the head tilting of a viewer using polarized glasses and to prevent a three-dimensional cross-talk phenomenon. CONSTITUTION: A stereoscopic image display device(100) includes a main display panel(110), an auxiliary display panel(120), a light source(130), and a pair of polarized glasses(140). The main display panel alternately displays a left image and a right image. The auxiliary display panel converts the linear polarization of the left image or right image incident from the main display panel into circular polarization. The light source supplies light to the rear of the main display panel. The pair of polarized glasses implements a stereoscopic image by selectively allowing the left image and right image, projected from the auxiliary display panel, to pass through according to the polarization state of the images.
Patent KR-20130052377-A (KR)
Title: Washing machine with vibration reducing apparatus and vibration reducing method using the same
Inventor: WEE HOON
IPC: D06F34/16
Filed: 2011-11-11
Abstract: PURPOSE: A washing machine including a vibration reducing device and a vibration reducing method thereof are provided to generate vibration suppression force of the opposite direction to a vibration by reducing vibrations of a tub. CONSTITUTION: A drum is rotatably installed in a tub. A vibration sensor measures a vibration of the tub generated according to the rotation of the drum. A control unit calculates vibration suppression force of the opposite direction to the vibration. A vibration reducing device(70) delivers the vibration suppression force to the opposite direction to the vibration. A gyro rotor(82) is rotated in a first direction at a high speed. A spin motor operates the gyro rotor at a high speed. A gimbal(74) operates the gyro rotor in the first direction and a direction of an angle of 90°. A gimbal motor(76) controls a rotation direction of the gimbal.
Patent KR-20130052898-A (KR)
Title: Subminiature work-piece grinding device
Inventor: HWANG YEON
IPC: B24B13/00
Filed: 2011-11-14
Abstract: PURPOSE: A device for grinding a subminiature workpiece is provided to precisely process by preventing a part except an edge unit of a tool from interfering in a working object through tapering the end portion of the tool contacting with the working object for precisely processing. CONSTITUTION: A device for grinding a subminiature workpiece comprises a vacuum chuck(10), a spindle(31), a shank unit(41), and a grinding unit(45). The grinding unit includes an edge unit(45a) and an interference protection unit(45b). One end of the edge unit is connected to the shank unit and the other end contacts with a working object. The edge unit processes the working object. The interference protection unit prevents outer circumference between the edge unit and the shank unit from interfering in the working object in a process processing an association object.
Patent KR-20130055316-A (KR)
Title: 화면내 예측 부호화를 위한 영상 부호화/복호화 방법 및 장치
Inventor: YIE ALEX CHUNG KU
IPC: H04N7/34
Filed: 2011-11-18
Abstract: 본 발명은 예측 유닛에 대해 화면 내 예측을 적용하고, 그 중에서 평면 예측 모드를 사용하는 경우, 최우측 화소들 및 최하단 화소들에 대해 정확한 예측 화소값을 구할 수 있는 영상 부호화/복호화 방법 및 장치를 개시하고 있다. 평면 예측 모드를 사용하여 화면내 예측을 수행하되, 상기 화면내 예측은 N번째 픽처의 현재 예측 유닛의 최우측 화소들의 예측 화소값은 (i) 제 1 화소 - 제 1 화소는 상기 현재 예측 유닛 이전에 부호화된 상단 블록의 최하단의 최우측 화소를 의미함- 의 화소값과 상기 제 1 화소 우측에 접해 있는 화소의 화소값과의 평균인 제 1 평균값(A)을 이용하여 구하고, 상기 현재 예측 유닛의 최하단 화소들의 예측 화소값은 제 2 화소 - 제 2 화소는 상기 현재 예측 유닛 이전에 부호화된 좌측 블록에서 최우측 최하단 화소를 의미함 - 의 화소값과 상기 제 2 화소 하단에 접해 있는 화소의 화소값과의 평균인 제 2 평균값(B)을 이용하여 구하는 단계와, 상기 현재 예측 유닛의 최우측 하단의 화소의 예측 화소값은 (i) 상기 제 1 평균값(A)과 제 2 평균값(B) 중 어느 하나, (ii) 상기 제 1 평균값(A)과 상기 제 2 평균값(B)의 평균값 및 (iii) N-1번째 픽처의 대응되는 예측 유닛의 최우측 하단의 화소의 화소값 중 어느 하나를 이용하여 구하는 단계를 포함한다.
Patent KR-20130059112-A (KR)
Title: Connecting soket for portable terminal
Inventor: KIM JUNG HOON
IPC: H01R12/71
Filed: 2011-11-28
Abstract: PURPOSE: A connection socket for a portable terminal is provided to install different kinds of connection terminals in one case, thereby minimizing the thickness of the connection terminals. CONSTITUTION: Different kinds of connection terminals(20) are included in a case. The connection terminals are positioned at different positions on one plane. The connection terminals are connected to plug connection terminals(P2) which are installed in a plug(P). The connection terminals are arranged so that the parts of the connection terminals to which the plug connection terminals are connected are different.
Patent KR-20130059862-A (KR)
Title: Method of estimating ofdm symbol timing in cable network
Inventor: LEE JAE HO
IPC: H04L27/26
Filed: 2011-11-29
Abstract: PURPOSE: A method for estimating the timing of a symbol used in a cable network communicating with an OFDM method is provided to reduce hardware complexity in an OFDM receiver while maintaining symbol timing estimation performance. CONSTITUTION: An OFDM symbol including a cyclic symbol is received(510). An energy property of the OFDM symbol is calculated by using a pre-established SNR(Signal to Noise Ratio)(520). The timing of the OFDM symbol is estimated on the basis of the calculated energy property of the OFDM symbol and the correlation property of the OFDM symbol(530). [Reference numerals] (510) Step of receiving an OFDM symbol including a cyclic symbol; (520) Step of calculating energy property of the OFDM symbol by using a pre-established SNR; (530) Step of estimating timing of the OFDM symbol on the basis of the energy property and correlation property of the OFDM symbol; (AA) Start; (BB) End
Patent KR-20120003411-A (KR)
Title: Insulation board arrangement structure and method of liquefied natural gas storage tank
Inventor: SHIN CHAN HYO
IPC: F17C3/04
Filed: 2011-12-01
Abstract: PURPOSE: An insulation board arrangement structure and method of a liquefied natural gas tank are provided to form a cargo loading space or a space between inner and outer hulls by reflecting the shape of a barrier or inner hull depending on the thickness change of an insulation board. CONSTITUTION: An insulation board arrangement structure of a liquefied natural gas tank(100) comprises an insulation surface, first and second insulation boards(120,140), and a barrier(130). The insulation surface is formed as a reinforced area and a general area depending on the degree of sloshing impact of the tank. The first insulation board is arranged on the general area. The second insulation board has a thickness increased than the thickness of the first insulation board. The second insulation board is arranged on the reinforced area. The barrier has height difference corresponding to the thickness change of the neighboring part of the first and second insulation boards.
Patent KR-20130061991-A (KR)
Title: Prepreg and printed circuit board comprising the same
Inventor: KIM YOON SHIK
IPC: B32B15/08
Filed: 2011-12-02
Abstract: PURPOSE: A porous scaffold of prepreg, which is used for the impregnation of insulating layer resin composition, is provided to have excellent thermal stability, wide surface area, and the non-orientable coefficient of thermal expansion. CONSTITUTION: A prepreg (10,100) includes an impregnated insulating layer resin composition in a porous support (113). The porous scaffold has the specific surface area value of 200 to 2000m^/ g. The side of porous support is 80um or less. The porous support is at least one selected from a group of aerogel, silica, fused silica, glass, alumina, platinum, nickel, titania, zirconia, ruthenium, cobalt and alloy thereof; and at least one selected from at least one porous polymer selected from a group consisting of an urea resin, a phenol resin, a polystyrene resin, and alloy thereof. The insulating layer resin composition includes base resins (11, 111) and fillers (12, 112). The printed circuit board includes an insulating layer (120) made of prepreg.
Patent KR-20130062570-A (KR)
Title: Golf putter
Inventor: LEE CHONG SURK
IPC: A63B53/04
Filed: 2011-12-05
Abstract: PURPOSE: A golf putter is provided to enhance the accuracy of stroke and facilitate a linear distance and spin. CONSTITUTION: A golf putter includes a head and a shaft and comprises carbon steel (100A), elastic materials (100B), titanium (100C), and urethane (100D). The head surface has the same material with the outer cover (urethane material) of the golf ball and corresponds with the concave unit of the golf ball. The golf putter surface can be replaceable.
Patent KR-20130064374-A (KR)
Title: Non-volatile memory device
Inventor: CHO HYUN CHUL
IPC: G11C16/08
Filed: 2011-12-08
Abstract: PURPOSE: A non-volatile memory device is provided to perform a stable pumping operation regardless of voltage variation by independently controlling various pump circuits along an operation section. CONSTITUTION: A first voltage generating unit(110) increases a first output node to a first voltage level in a first operation section and maintains a first output node in the first voltage level in a second operation section. A second voltage generating unit(120) increases a transmission node to the first voltage level in the first operation section and maintains the transmission node in the first voltage level in the second operation section. A third voltage generating unit(130) increases a second output node to a second voltage level by using a voltage level of a source node as a reference source voltage level in the second operation section. [Reference numerals] (110) First voltage generating unit; (120) Second voltage generating unit; (130) Third voltage generating unit; (160) First oscillation signal generating unit; (170) Second oscillation signal generating unit
Patent KR-20130071102-A (KR)
Title: Method and apparatus for measuring roll gaps in leveller of thick steel sheet
Inventor: KO SEONG HYUN
IPC: G01B21/10
Filed: 2011-12-20
Abstract: PURPOSE: A roll shape measurement method and device for a rear plate roller corrector are provided to quantitatively extract data by measuring the shaped of a roller corrector such as abrasion and eccentricity and to improve the correction efficiency of the roller corrector. CONSTITUTION: A roll shape measurement device for a rear plate roller corrector comprises a horizontal plate(10), a sensing part(20), a driver, and a data processing part(40). The horizontal plate is mounted with the sensing part to be movable in the barrel direction of a roll or the vertical direction thereof. The sensing part measures the distance with the roll. The driver transmits power to the sensing part to move on the horizontal plate. The data processing part receives data measured in the sensing part, calculates the average value of roll radius to make into a graph in order to compare the average value with the actual measurement value of roll radius, and provides the graph to a worker.
Patent KR-20130071868-A (KR)
Title: Desktop type bending test machine equipped with microscope
Inventor: KIM JIN WON
IPC: G01N3/20
Filed: 2011-12-21
Abstract: PURPOSE: A desktop type bending tester equipped with microscope is provided to manually apply a bending load to a specimen through a jackscrew while measuring a load actuated on the specimen with a load cell and to observe a crack phenomenon generated on the specimen with the microscope. CONSTITUTION: A desktop type bending tester equipped with microscope includes a housing unit (100), a load applying member (200), a load cell, a three-point support (400) for applying a load, and a microscope (500). The front and rear surfaces of the housing unit are opened. The load applying member is installed to be elevated from the outer upper part of the housing unit to the inside. The load cell is joined to the underside of the load applying member. The three-point support is installed on the underside of the load cell and the both inner lower sides of the housing unit, and a specimen is seated on the three-point support. The microscope observes a crack phenomenon of the specimen seated on the three-point support.
Patent KR-20130072385-A (KR)
Title: 대체에너지를 이용한 냉난방시스템 실험실습 장치
Inventor: CHOI JUNG HEE
IPC: F25B30/06
Filed: 2011-12-22
Abstract: 본 발명은 대체에너지를 이용한 냉난방시스템 실험실습 장치에 관한 것이다. 본 발명의 하나의 모습에 따라, 인공태양 역할을 수행하는 광원과, 광원으로부터 에너지를 흡수하여 축열매체를 가열시키는 집광기와, 가열된 축열매체와 열교환을 통해 축열된 열매체를 저장하는 축열조를 포함하는 실험용 태양열 집열시스템; 압축기, 방향전환밸브, 팽창밸브, 제1 열교환기 및 외부와 열교환을 수행하는 제2 열교환기를 포함하는 히트펌프와, 제1 열교환기와 열교환을 수행하는 열매체를 저장하는 실험용 지열저장조를 포함하는 실험용 지열 히트펌프시스템; 난방시 축열조 또는 실험용 지열저장조로부터 고온의 열매체를 공급받아 추가 가열시키는 보조열원과, 난방시 보조열원에서 추가 가열된 열매체를 전달받고 냉방시 실험용 지열저장조에 저장된 저온의 열매체를 전달받아 외부와 열교환을 수행하는 제3 열교환기를 포함하는 보조열원 냉난방시스템; 및 조작에 따라 구성기기들의 작동을 제어하는 제어패널; 을 포함하여 이루어지는 대체에너지를 이용한 냉난방시스템 실험실습 장치가 제안된다.
Patent KR-20120072339-A (KR)
Title: Manufacturing methods of funtional pearlites mixture of cation and anion ions and its mixture for adsorption
Inventor: YOO YEONG SEOK
IPC: B01J20/18
Filed: 2011-12-22
Abstract: PURPOSE: A method for manufacturing a functional pearlite hybrid and the functional pearlite hybrid are provided to reduce the using amount of fertilizer and to reduce environmental contamination due to the discharging of the fertilizer. CONSTITUTION: Cations are absorbed on pearlite by directly attaching zeolite particles to the pearlite or coating and drying a zeolite solution on the pearlite. Anions are absorbed on the cation absorbed pearlite by modifying the surface of the pearlite using metal salts or cation surfactant. The cation absorbed pearlite and the anion absorbed pearlite are mixed using a binder such that an absorbed layer is formed.
Patent KR-20130073574-A (KR)
Title: Submerged arc welding methods of the backing
Inventor: LEE WEON GU
IPC: B23K9/18
Filed: 2011-12-23
Abstract: PURPOSE: A submerged arc welding backing method is provided to adhere a backing flux to a rear side of a base material by uniformly arranging not to be leaned to one part, thereby preventing damage of a copper plate due to an arc as well as controlling the height of a back bead of the rear side. CONSTITUTION: A submerged arc welding backing method includes following steps. A backing flux is inserted into a pocket in a rear side of a base material for supporting the rear side of the base material (S1). A glass fiber pad supports a bottom surface of the pocket in which the backing flux is inserted (S2). A copper plate supports a bottom surface of the glass fiber pad (S3). An air hose pressurizing the copper plate to an upper side is inserted into a lower part of the copper plate as air is supplied in a case (S4). [Reference numerals] (S1) Backing flux is inserted into a pocket; (S2) Glass fiber pad is supported; (S3) Glass fiber pad is supported; (S4) Glass fiber pad is inserted into a case
Patent KR-20130073662-A (KR)
Title: Scarfing method of slab
Inventor: LIM HO JIN
IPC: B22D11/12
Filed: 2011-12-23
Abstract: PURPOSE: A slab scarfing method is provided to prevent a slab from being tied up in a standby state in a slab scarfing process, thereby quickly performing the scarfing process. CONSTITUTION: A slab scarfing method performs the following steps: a step of aligning the posture of a slab produced in a continuous casting process before mounting the slab on a transfer roller which transfers the slab to a scarfing machine (S100); a step of mounting the slab on the transfer roller and transferring to the scarfing machine (S200); a step of detecting an alignment position of the slab, moving on the transfer roller, in the width direction of the roller, moving the scarfing machine in the width direction of the slab in response to the detected alignment position of the slab in the width direction, and aligning the slab with the scarfing machine (S300); and a step of enabling the slab to pass through the scarfing machine and scarfing the surface of the slab (S400). [Reference numerals] (AA) Manufacturing a slab; (S110) Transferring a slab using a first roller; (S120) Transferring a slab to a standby zone; (S130) Performing a slab centering; (S210) Transferring a slab to a second roller; (S220) Transferring a slab using a second roller; (S310) Setting a slab location reference value; (S320) Measuring a slab location measurement value; (S330) Extracting a slab location output value; (S340) Adjusting scarfing machine location?; (S400) Scarfing the surface of a slab
Patent KR-20130074106-A (KR)
Title: Concrete composite wall with inner insulation and frp eccentric wave shear connector and the construction method
Inventor: YOO YOUNG CHAN
IPC: E04B1/80
Filed: 2011-12-26
Abstract: PURPOSE: An onsite concrete composite wall with inner insulation and a construction method thereof using an eccentric waveform FRP shear connector are provided to prevent heat bridge phenomenon using an FRP shear connector and to minimize the installation number of a form tie by minimizing the deformation of an insulation material. CONSTITUTION: A construction method of an onsite concrete composite wall with inner insulation comprises the following steps: separately installing an outer form (220) and an inner form (210) using a form tie and installing an insulation material (110) in between the outer and inner forms; vertically arranging a waveform FRP shear connector (120) in the inner side of the insulation material and restricting the deformation of the insulation material by contacting the front end of the shear connector with the rear surface of the outer form when pouring concrete; and restricting the deformation of an insulation material module by installing a support stand (450) in the joint part of the insulation material module.
Patent KR-20130075929-A (KR)
Title: Ladder for working on a large ship structure
Inventor: SHIN JA HO
IPC: B63B9/00
Filed: 2011-12-28
Abstract: PURPOSE: A work ladder for a large block for a ship is provided to install buckles at both upper ends thereof, thereby firmly fixing the same to a rail temporally installed at the block. CONSTITUTION: A work ladder for a large block for a ship includes an upper end fixing body, a lower end fixing body (20), a side support, a guide bar, a rotating bar (50), a rotating body (60), a lever, a spring (80), and a fixing band. The upper end fixing body protrudes from the upper side surface of the main support of the ladder. The lower end fixing body is separated from the upper end fixing body, and protrudes from the upper side surface of the main support. A band bar is formed at the end of the lower end body. The side support is integrated with the ends of the upper and the lower end fixing body, and has a guide hole. The guide bar is placed between the upper and the lower end fixing body. One side of the guide bar is fixed to the upper side surface of the main support, and the other side of the main support is fixed to the side support. The rotating bar is placed between the upper and the lower end fixing body. One side of the rotating bar is fixed to the upper side surface of the main support, and the other side of the rotating body is fixed to the side support.
Patent KR-20130078597-A (KR)
Inventor: YOON SUNG JUN
IPC: H04B7/04
Filed: 2011-12-30
Abstract: PURPOSE: An interference measurement area information supplying method, an apparatus thereof, an interference measurement method using the same, and an apparatus thereof are provided to set up a muting area where data is muted as an interference measurement area at each transmission point and measure interference at another transmission point using the measured interference measurement area. CONSTITUTION: An interference measurement area information processing unit (1020) generates interference measurement area configuring information and measurement indicating information. The interference measurement area information processing unit transmits the generated information to a terminal. The interference measurement area configuring information is information for indicating a determined interference measurement area. A muting signal processing unit (1030) generates a data muting signal. The muting signal processing unit transmits the generated signal to the terminal. [Reference numerals] (1010) Interference measurement area determining unit; (1020) Interference measurement area information processing unit; (1030) Muting signal processing unit
Patent KR-20110027779-A (KR)
Inventor: KAKITA KAZUAKI
IPC: H01M14/00
Filed: 2009-06-19
Abstract: 본 발명은 하기 일반식 (1-1) 로 나타내는 2 핵 루테늄 착물 색소에 관한 것이다.     
   
(식 중, R 01  은 직사슬 또는 분지형의 탄소 원자수 2 ∼ 18 의 알킬기를 나타내고, X 는 카운터 이온을 나타내고, n 은 착물의 전하를 중화시키는 데 필요한 카운터 이온의 수를 나타낸다.     단, 1 또는 복수의 카르복실기 (-COOH) 의 프로톤 (H ＋ )   은 해리되어 있어도 된다)
Patent KR-20110042295-A (KR)
Inventor: GABLER ANSOR
IPC: B01F23/80
Filed: 2009-05-12
Abstract: 본 발명은 분산상을 형성하는 제1 유체 및 연속상을 형성하는 제2 유체를 포함한 디스퍼션을 상전환하기 위한 방법 및 시스템에 관한 것이다.  디스퍼션은 상전환 수단에 유체 공급 장치에 의해 공급된다.  이에 따라, 제1 유체는 분산상에서 연속상으로 전환될 수있고, 제2 유체는 연속상에서 분산상으로 전환될 수 있다.  상전환 수단은 유동방향으로 응집하기 위해 유체 접촉 표면을 형성하는 요소를 포함한다.
Patent KR-20110036746-A (KR)
Inventor: BARSKY LEV MICHAEL
IPC: H03K5/1532
Filed: 2009-07-09
Abstract: 전류 검출 및 판별을 위한 디바이스 및 방법이 개시된다.  디바이스는 전류 입력을 수신하도록 구성된 차동 수신기, 입력 스테이지와 통신하는 포지티브 측 슈미트 트리거 - 포지티브 측 슈미트 트리거는 입력 스테이지에 의해 제공되는 출력을 수신하도록 구성되고, 포지티브 측 슈미트 트리거는 전류 입력을 나타내는 포지티브 측 슈미트 트리거 출력을 생성하도록 구성됨 - , 및 입력 스테이지와 통신하는 네거티브 측 슈미트 트리거 - 네거티브 측 슈미트 트리거는 입력 스테이지에 의해 제공되는 출력을 수신하도록 구성되고, 네거티브 측 슈미트 트리거는 전류 입력을 나타내는 네거티브 측 슈미트 트리거 출력을 생성하도록 구성됨 - 를 포함한다.
Patent KR-20110054081-A (KR)
Inventor: ARNOTT ROBERT
IPC: H04B1/7136
Filed: 2008-01-30
Abstract: 사용자 장치들이 연관된 기지국과 통신하는 통신 시스템이 기술된다.  사용자 장치는 주파수 호핑 기술을 이용하여 기지국과의 통신에서 주파수 다이버시티를 제공한다.  상이한 사용자 장치로부터의 통신들 간에서의 충돌을 줄이고 사용할 주파수 호핑 시퀀스를 정의하는 데이터의 효율적인 시그널링을 위한 기술이 개시된다.  본 발명은 특히 E-UTRA 통신 방식의 상향링크에서 사용하기에 적합하다.
Patent KR-20110090976-A (KR)
Inventor: FOURNEY MATTHEW L
IPC: B65G47/24
Filed: 2009-10-26
Abstract: 본 발명은 케이스들을 회전시키는 컨베이어 및 방법에 관한 것이다.  컨베이어는 서로 다른 속도로 바람직하게 진행하는 한 쌍의 나란한 벨트들(18,19)을 포함한다.  서로 다른 벨트의 속도는 양쪽 벨트들에 걸쳐 있는 패키지의 리딩 에지가 저속 벨트를 향하여 이동되도록 한다.  2 개의 벨트들(18,19)은 컨베이어를 따른 일련의 작동 영역들에서 선택적으로 작동될 수 있는 횡형 롤러들(24)을 포함함으로써, 상기 벨트들의 꼭대기에서 운반되는 패키지들을 우측 또는 좌측으로 밀어낼 수 있다.  제어기는 순차적으로 각 영역(z)에서 벨트 롤러들(24)의 작동을 제어하여, 그 결과, 패키지의 리딩 에지를 지지하는 벨트 롤러들은 상기 패키지를 저속 벨트를 향하여 밀어내고, 패키지의 트레일링 에지를 지지하는 벨트 롤러들(24)은 상기 패키지를 고속 벨트를 향하여 밀어냄으로써, 벨트들이 전진할 시에 패키지의 회전을 가속시킬 수 있다.