baber/WOPTO huggingface dataset:
Patent KR-20180095551-A (KR)
Title: 아크릴 조성물
Inventor: GUO HAILAN
IPC: C08K5/00
Filed: 2016-12-13
Abstract: 아크릴 수지 및 하기 화합물 (I)을 포함하는 폴리머 조성물이 제공된다: 
   
식 중, R 1 , R 2 , R 3 , 및 R 4  각각은 독립적으로 수소, 또는 1개 이상의 탄소 원자를 갖는 유기기이고, 그리고 n은 1 내지 20이다.
Patent KR-20180107781-A (KR)
Title: 워터마크들을 이용하여 자원 식별자들을 시그널링하기 위한 시스템들 및 방법들
Inventor: NG SHEAU
IPC: H04N21/8358
Filed: 2017-03-01
Abstract: 디바이스는 워터마크들을 이용하여 정보를 시그널링하도록 구성될 수 있다.  디바이스는 멀티미디어 콘텐츠와 연관된 자원의 주소와 연관된 식별자를 결정하고 이 식별자를 멀티미디어 콘텐츠를 나타내는 신호에 임베딩하도록 구성될 수 있다.  디바이스는, 멀티미디어 신호를 수신하고, 멀티미디어 신호로부터 자원의 주소와 연관된 식별자를 파싱하고, 식별자를 포함하는 질의를 생성하고, 질의에 응답하여 보충 콘텐츠를 수신하도록 구성될 수 있다.
Patent KR-20180117119-A (KR)
Title: 블록체인 시스템 내에서 피드백을 통합하는 에이전트 기반의 튜링 완전 거래
Inventor: WRIGHT CRAIG STEVEN
IPC: G06N7/00
Filed: 2017-02-14
Abstract: 본 발명은 일반적으로 블록체인 구현에 관한 것으로서, 이에 제한되는 것은 아니지만, 비트코인 블록체인과 함께 사용하기에 적합하다. 이는 장치/시스템 제어, 프로세스 제어, 분산 컴퓨팅 및 저장소 및 기타와 같은 자동화된 프로세스의 구현에 사용될 수 있다. 본 발명은 이벤트 검출, 모니터링 및/또는 카운팅 메커니즘을 제공한다. 이벤트는 예를 들어, 주어진 독립체에 의해 이루어진 투표, 결정 또는 선택일 수 있다. 본 발명은 블록체인에 동시에 그리고 병렬로 실행되는 컴퓨팅 자원이 루프 기반 동작을 관리하는 카운팅 솔루션을 제공한다. 컴퓨팅 자원은 다른 오프 블록 체인 입력 데이터 또는 소스뿐만 아니라 블록체인의 상태를 지속적으로 모니터링한다. 루프의 실행은 블록체인의 상태에 영향을 받는다. 컴퓨팅 자원에 의해 실행되는 루프의 각 반복은 블록체인에 기록되는 거래에 기록된다. 그것은 거래의 메타 데이터 내에서 해시로 저장된다. 컴퓨팅 자원이 루프와 관련된 해시를 포함하는 거래를 찾으면, 관련 코드 부분에 액세스한다. 루프는 컴퓨팅 자원이 취할 수 있는 작업을 결정하도록 하는 조건문을 포함한다. 조건은 블록체인 또는 다른 데이터 소스의 상태에 따라 달라질 수 있다. 작업은 블록체인 상 또는 밖의 어떤 유형의 작업이 될 수 있다. 따라서, 컴퓨팅 자원과 블록체인의 결합은 (적어도 부분적으로) 튜링 완전인 솔루션을 제공한다.
Patent KR-20180110679-A (KR)
Title: 표시 패널의 제조 방법
Inventor: UEDA KOJI
IPC: G02B5/30
Filed: 2017-02-17
Abstract: 제조 시에 있어서의 표시 패널 단부에의 이지러짐이나 금의 발생을 억제할 수 있는 표시 패널의 제조 방법을 제공한다. 대향용 모기판의 외면에 접합된 광학 필름을 표시 패널(1)의 대향 기판(2)이 되는 각 부분의 윤곽을 따라 절단한 후에, 절단된 각 부분의 내측(5a)을 남기고 광학 필름의 여백 부분을 대향용 모기판의 면 상으로부터 박리하여 제거하는 공정과, 표시 패널(1)의 대향 기판(2)이 되는 각 부분의 윤곽을 따라 대향용 모기판을 절단하는 공정과, 소자용 모기판의 외면에 접합된 광학 필름을 표시 패널(1)의 소자 기판(3)이 되는 각 부분의 윤곽을 따라 절단한 후에, 절단된 각 부분의 내측(5b)을 남기고 광학 필름의 여백 부분을 대향용 모기판의 면 상으로부터 박리하여 제거하는 공정과, 표시 패널(1)의 소자 기판(3)이 되는 각 부분의 윤곽을 따라 소자용 모기판을 절단하는 공정을 포함한다.
Patent KR-20180108859-A (KR)
Title: 구조체, 및 구조체의 제조 방법
Inventor: KONO KENTARO
IPC: F17C1/06
Filed: 2016-09-29
Abstract: 적절한 강도를 유지하면서, 두께를 저감시킴으로써, 제품 전체적으로 경량화할 수 있는 구조체를 제공한다.  수지(22)가 함침된 강화 섬유(21)를 포함하는 보강 부재(20)를 구비하는 구조체이며, 보강 부재(20)는, 강화 섬유(21)에 대하여 플라즈마(P)가 조사되어 이루어지는 제1 영역(A1)과, 강화 섬유(21)에 대하여 제1 영역(A1)보다도 적은 양의 플라즈마(P)가 조사되어 이루어지는 제2 영역(A2)을 갖고, 제1 영역(A1)을 제2 영역(A2)보다도 강도가 요구되는 개소에 위치시켜, 보강 부재(20)를 설치하여 이루어진다.
Patent KR-20180128492-A (KR)
Title: 비-박동성 혈액량 측정을 위한 시스템 및 방법
Inventor: ALLEC NICHOLAS PAUL JOSEPH
IPC: A61B5/0205
Filed: 2017-05-10
Abstract: 본 발명은 사용자의 생리학적 신호들 중 하나 이상을 결정하기 위한 시스템 및 방법에 관한 것이다.  사용자의 생리학적 신호들 중 하나 이상은 박동성 혈액량 변화를 측정함으로써 결정될 수 있다.  신호 내에 포함된 움직임 아티팩트는 비-박동성 혈액량 변화를 측정함으로써 그리고 비-박동성 혈액 정보를 고려하도록 신호를 조정함으로써 취소되거나 감소될 수 있다.  비-박동성 혈액량 변화는 적어도 한 세트의 광 방출기-광 센서를 사용하여 측정될 수 있다.  광 방출기는 광 센서에 가까이 근접하게 (예를 들어, 1 mm 이하로 떨어져) 위치될 수 있고, 그에 의해 하나 이상의 혈관 및/또는 소동맥과 상호작용하지 않고서 광 방출기에 의해 방출된 광을 혈액량으로 제한할 수 있다.  일부 예에서, 시스템은 사용자의 가속도를 측정하도록 구성된 가속도계를 추가로 포함할 수 있고, 가속도 신호는 움직임 아티팩트를 보상하기 위해 추가로 사용될 수 있다.
Patent KR-20190031438-A (KR)
Title: 무선 네트워크 기반 통신 방법, 단말 기기 및 네트워크 기기
Inventor: TANG HAI
IPC: H04W72/12
Filed: 2016-07-15
Abstract: 본 발명의 실시예는 무선 네트워크 기반 통신 방법, 단말 기기 및 네트워크 기기를 제공한다. 상기 무선 네트워크 기반 통신 방법은, 단말 기기가 네트워크 기기에 의해 송신된 제1 다운링크 제어 정보(DCI)를 검출하는 단계; 단말 기기가 네트워크 기기에 의해 송신된 제2 DCI를 검출하는 단계; 및 단말 기기가 제1 DCI 및 제2 DCI 중의 제어 정보를 결합시켜 타겟 데이터의 송신 또는 수신을 수행하는 단계를 포함한다. 본 발명의 실시예에 따르면, 제1 DCI 및 제2 DCI는 상이한 유형의 제어 정보를 운반할 수 있고, 제1 DCI 및 제2 DCI를 별도로 전송함으로써 상이한 유형의 제어 정보에 대한 전송 요구를 충족시킬 수 있으며, 상이한 유형의 제어 정보에 대한 전송 요구를 충족시키는 전제하에 상이한 유형의 제어 정보를 단말 기기에 전송함으로써 단말 기기가 타겟 데이터의 송신 또는 수신을 수행할 수 있도록 한다.
Patent KR-20200086393-A (KR)
Title: Providing method, apparatus and computer-readable medium of auto scaling of cloud server
Inventor: KIM WOO YOUNG
IPC: H04L12/24
Filed: 2019-01-08
Abstract: An objective of the present invention is to provide a technique which automatically extends or reduces a server in accordance with connection and use of users for the server to prevent inconvenience when a user uses a cloud server and allows optimal use of resources in a cloud server service. According to an embodiment of the present invention, a method for automatic scaling of a cloud server is realized by a computing device including one or more processors and one or more memories to store commands executable by the processors, and comprises: a load measurement step of measuring server state information representing a load degree of a server at a preset cycle for the server created to allow a user to connect through an online address to use a specific service on a cloud service base to be registered in a preset server list; a replication server creation step of creating a replication server identical to the server on a cloud service if the server state information measured by the load measurement step satisfies a preset extension condition; and a connection control step of mediating connection of a user terminal to one of the server and the replication server to allow the user to use the replication server to use the specific service.
Patent KR-20200089143-A (KR)
Title: Organic light emitting display apparatus including nano-structured mirror
Inventor: KYOUNG JI SOO
IPC: H01L27/32
Filed: 2019-01-16
Abstract: A disclosed organic light emitting display device includes a plurality of blue pixels emitting blue light, a plurality of green pixels emitting green light, and a plurality of red pixels emitting red light. Each of the pixels includes a reflective layer, a first electrode on the metal reflective layer, a light emitting unit disposed on the first electrode, and a second electrode disposed on the light emitting unit. Upper surfaces of the reflective layers of the blue pixels are continuously flat, and constitute the same plane as upper surfaces of the reflective layers of the green pixels and upper surfaces of the reflective layers of the red pixels. The green pixels and the red pixels include a plurality of nano-structures protruding from bottom surfaces to the upper surfaces from the top surface of the reflective layer to the same depth.
Patent KR-20200092167-A (KR)
Inventor: LEE CHANG JOON
IPC: G06Q50/10
Filed: 2019-01-24
Abstract: The present invention relates to a propane city gas business execution system. In addition, according to the present invention, the propane city gas business execution system comprises: a plurality of small storage tanks installed near a place of usage of a consumer and storing propane gas; a remote control monitoring system installed in each small storage tank to measure amount and remaining amount of propane gas and transmit the measured amount and remaining amount of propane gas to an ERP system; and an ERP system automatically processing orders to a propane gas filling station using the amount and remaining amount of propane gas measured by the remote control monitoring system.
Patent KR-20200092765-A (KR)
Inventor: SHIM NAK HOON
IPC: E02D27/32
Filed: 2019-01-25
Abstract: Disclosed are a reaction structure formed by making prefabricated reaction blocks having a cuboid main body with at least one of a width-direction coupling hole and a longitudinal coupling hole formed to allow a tendon to pass therethrough in addition to an installing hole or groove in a thickness direction, and longitudinally and laterally connecting the prefabricated reaction blocks to each other on a plane by the tendon and a fastening member to form a reaction bed; and an installation method for making such a reaction structure at a site. According to the present invention, a structural test facility is easily installed in a prefabricated manner at a site or near the site to carry out a structural test on an object, thereby performing a structural test even if it is difficult to carry and transport the test object due to the characteristic of the test object. A stable reaction structure can be formed while using reaction blocks which are easily assembled and disassembled. The reaction structure can be flexibly formed in a form most suitable for the size or shape and structure of the test object to minimize the supplies, effort, and time required for the reaction structure.
Patent KR-20200093140-A (KR)
Inventor: PARK SUNG BIN
IPC: G06Q20/32
Filed: 2019-01-28
Abstract: Disclosed are a method and a device for inputting credit card information using an HID. The embodiment of the present invention provides the method and the device for inputting the credit card information, in which when performing a mobile payment offline, in order to perform simple payment without using a separate card reader at a POS, signal card information is safely input to the POS without the need to directly modify a program installed inside the POS.
Patent KR-20200097158-A (KR)
Title: Novel di-valent antibody fragment platform
Inventor: KIM CHAN GIL
IPC: A61P35/00
Filed: 2019-02-07
Abstract: The present invention is to prepare a Fab fragment capable of replacing an antibody and a novel di-valent Fab fragment. According to an embodiment of the present invention, the present invention relates to a Fab fragment which specifically binds to Her2. To this end, a SARAH domain is additionally included at a C-terminus of a heavy chain constant region (C_H1) two Fab fragments can be recombined in the reverse direction through the SARAH domain to form a dimer, thereby securing excellent antigen-binding abilities since binding to an antigen is not inhibited.
Patent KR-20200098340-A (KR)
Inventor: KIM JINHWAN
IPC: G02B5/02
Filed: 2019-02-12
Abstract: Disclosed is an optical film which transmits light emitted from a mini light emitting diode (LED) or a micro LED. The optical film comprises: a first base film; and a reflective layer disposed on one side of the first base film to reflect a part of light emitted from a mini LED or a micro LED. The reflective layer can include a plurality of holes through which the other part of light emitted from the mini LED or the micro LED passes. In this case, as a position of at least one of the plurality of holes is closer to the center of the mini LED or a position on the reflective layer corresponding to the center of the micro LED, a diameter of the at least one of the plurality of holes can be formed smaller.
Patent KR-20200098928-A (KR)
Title: Marinated grilled pik skin processed food and method for manufacturing the same
Inventor: LEE JAE YOUNG
IPC: A22C17/00
Filed: 2019-02-13
Abstract: The present invention relates to a pork rind processed food and a method for manufacturing the same. The method includes: a step of preparing a raw ingredient by cutting washed pork rind; a step of cutting the surface of the raw ingredient in a predetermined pattern; a step of preparing seasoned meat by mixing the raw ingredient with seasoning in which 10 to 15 parts by weight of purified water, 8 to 12 parts by weight of sugar, 7 to 10 parts by weight of acid-decomposed soy sauce, 1 to 4 parts by weight of ground garlic, 0.1 to 0.5 parts by weight of ground ginger, 0.1 to 0.5 parts by weight of caramel pigment, 0.05 to 0.1 parts by weight of mugwort powder, 0.05 to 0.1 parts by weight of sodium L-glutamate, 0.05 to 0.1 parts by weight of licorice, and 0.01 to 0.1 parts by weight of cinnamon are mixed with respect to 100 parts by weight of the raw ingredient; a step of ripening the seasoned meat in a ripening chamber for 18 to 32 hours; a step of heating the ripened seasoned meat for 5 to 15 minutes at 100 degrees Celsius or more; a step of cooling the heated seasoned meat for 5 to 10 minutes; a step of sealing and packaging the cooled seasoned meat; and a step of rapidly freezing the packaged seasoned meat.
Patent KR-20200101236-A (KR)
Inventor: LEE CHI YOON
IPC: B65G47/90
Filed: 2019-02-19
Abstract: The present invention relates to a pizza package, a pizza discharge structure, and a pizza bending machine including the same, capable of minimizing damage to frozen foods. According to the present invention, the pizza package includes: a body having an open front side; a cover part formed integrally with a rear end of the body, configured to close a top surface and the front side of the body from an outside, and having a front end which is bent downward; and an extension part formed on both side ends of the cover.
Patent KR-20200102198-A (KR)
Inventor: CHAE CHUN UK
IPC: A23N12/12
Filed: 2019-02-21
Abstract: The present invention relates to a method for automating social-roasting profiling based on a network to remove a problem for which a lot of time and effort are required for a roasting process which is inconvenient and a system thereof. According to the present invention, the system comprises: a roasting machine; a roasting machine control unit connected to each device of the roasting machine to control the roasting machine based on roasting profile data and storing and loading the data from a roasting profile data storage unit; and the roasting profile data storage unit connected to the network to store and load various types of roasting profile data.
Patent KR-20200112527-A (KR)
Inventor: CHUNG KYUNG AE
IPC: A23L27/10
Filed: 2019-03-22
Abstract: The present invention relates to an antibacterial sauce and a method of preparing the same. When seafood such as slices of raw fish or the like is dipped in the antibacterial sauce of the present invention and eaten, the antibacterial sauce can prevent food poisoning caused by Vibrio parahaemolyticus or Vibrio vulnificus. The antibacterial sauce of the present invention can enhance flavor of seafood but reduce unique fishy smell of the seafood. In addition, the antibacterial sauce of the present invention contains a large amount of ingredients beneficial to the health, and thus, it is expected that the antibacterial sauce may contribute to enhancing the health.
Patent KR-20200114601-A (KR)
Inventor: JEONGYUN LIM
IPC: H04N19/119
Filed: 2019-03-29
Abstract: An objective of the present invention is to provide a video encoding method, a video decoding method, and an apparatus thereof for processing intra block copy which are suitable for encoding and decoding of ultrahigh definition videos. According to an embodiment of the present invention, the video decoding method of the video decoding apparatus comprises: a step of determining a current block for decoding coding units obtained by dividing a picture of a video or a divided area into a quad tree, a binary tree, or a ternary tree structure in steps to divide the picture into a plurality of coding units which are basic units on which inter prediction or intra prediction is performed; a step of constructing a tracking block prediction list in accordance with temporally or spatially pre-decoded surrounding block information in response to the current block; a step of constructing a block vector prediction candidate list for intra block copy decoding of the current block; and a step of using at least one of the tracking lock prediction list and the block vector prediction candidate list to perform intra block copy decoding for copying an intra copy block similar to the current block among pre-restored blocks within the picture to perform prediction decoding.
Patent KR-20200118533-A (KR)
Inventor: PARK JONGCHEOL
IPC: H01G5/013
Filed: 2019-04-08
Abstract: According to an embodiment of the present invention, an MEMS variable capacitor array device includes a plurality of unit variable capacitors arranged in a matrix form in a first direction and a second direction on a substrate. The MEMS variable capacitor array device includes: lower electrode lines extended in parallel to the second direction on the substrate; upper electrodes arranged on the lower electrode lines at regular intervals in a first direction and a second direction and floating from the lower electrode lines; at least a pair of conductive anchors supporting the upper electrode and disposed in a diagonal direction of the upper electrode; conductive anchor support portions disposed on the same plane as the lower electrode lines and supporting each of the conductive anchors without contacting the lower electrode lines; and leg springs extended in the second direction and connected to the upper electrode in the other diagonal direction of the upper electrode to provide elasticity. The present invention provides the reconfigurable variable capacitor for a multi-band.
Patent KR-20200119465-A (KR)
Title: Post-Treatment Method of Li Secondary Battery
Inventor: KIM HYUNWOOK
IPC: H01M4/1391
Filed: 2019-04-10
Abstract: The present invention relates to a post-treatment (formation) method of a lithium secondary battery, comprising an activation step of charging and maintaining a heated lithium secondary battery to an activation voltage that is equal to or higher than the voltage at which the phase transition occurs of lithium-transition metal composite oxide, while the lithium secondary battery is heated. In this case, the lithium secondary battery comprises: a positive electrode including, as a positive electrode active material, layered nickel-rich lithium-transition metal composite oxide containing 0.8 moles or more of Ni with a total number of moles of transition metal in 1; a negative electrode; a separator interposed between the positive electrode and the negative electrode; and an electrolyte, wherein all of the above components are embedded in a battery case.
Patent KR-20200123294-A (KR)
Title: Improving The Pressure Controlled Manufacturing Method For Injection Foaming Products
Inventor: JU SANG RYOOL
IPC: B29C45/76
Filed: 2019-04-17
Abstract: The present invention relates to improvement of a process for molding an expansion injection molded product under controlled pressure for the purpose of reducing the duration of an expansion injection molding process for molding a synthetic resin product used as an interior material of vehicles. The process for molding an expansion injection molded product under controlled pressure uses a pressure-controlling unit coupled to an injection mold and capable of controlling the pressure in a cavity, and includes the steps of: 1) introducing a first material to a first injector; 2) coupling a first mold with a second mold; 3) allowing the pressure-controlling unit to introduce a gas into the cavity to generate pressure; 4) inject the molten first material to the cavity through the first injector coupled to the second mold to form a skin in the front side of the first material that is in contact with the first mold; 5) separating the first mold from the second mold by a predetermined interval to open the cavity, and closing the molds to expand the first material portion at the rear side of the skin, thereby forming a foam skin; 6) introducing a second material to a second injector; 7) inject the molten second material to the cavity through the second injector to form a substrate integrally at the rear side of the foam skin; and 8) cooling the product including the foam skin and the substrate formed integrally with each other, and separating the product from the injection mold. Therefore, the process can provide a synthetic resin product including multiple materials by using a single injection mold to reduce the duration of an expansion injection molding process, uses an injection mold having a simple structure to reduce the costs required for production equipment, can reduce the production cost, can improve the surface quality of the product, and can accomplish weight-reduction of the product through an increase in expansion ratio.
Patent KR-20190058397-A (KR)
Inventor: HAN JAE SEOK
IPC: A63F13/79
Filed: 2019-04-18
Abstract: Disclosed is a device for providing content during installation of a game program. The content providing device can include a communication part and a processor. According to one embodiment, the processor receives input for starting installation of the game program and information about a user installing the game program, the user-customized content is determined based on the received user′s information, and provides the user with the user-customized content determined during the game program installation. The received user′s information according to one embodiment includes the type of user, and the type of user can include a new user, a return user, and an existing user.
Patent KR-20200128902-A (KR)
Inventor: AHN SE JIN
IPC: D06F37/20
Filed: 2019-05-07
Abstract: The present invention relates to a device for detecting a noise defect phenomenon occurring inside a washing machine when the washing machine is operated and a detection system, wherein the detection system can measure noise generated inside the washing machine by inserting a measuring device into a rotating washing tub, and can determine whether the noise is defective through a signal processing system. An operating sound measuring device according to an embodiment of the present invention is attached to the washing tub of the washing machine to measure the operating sound of the washing machine, and includes: a body unit including a coupling structure or material attached to the inside of the washing tub; and a microphone unit that is positioned inside the body unit and generates a measurement signal by measuring an internal operating sound when the washing machine is operated.
Patent KR-20200129622-A (KR)
Title: Effective silk screen printer
Inventor: LEE HO SEOP
IPC: B41F15/10
Filed: 2019-05-09
Abstract: The present invention relates to an effective silk screen printer capable of performing printing to an accurate position by continuously supplying fabric wound on a roll, the silk screen printer comprising: a printing part (100) configured by an upper body (110) including a screen printing plate, a squeeze, and a scraper, and a lower body (120) for supporting the lower part of the upper body (110); and a transfer part (200) arranged in a line with the printing part (100) to be positioned in back of the printing part (100) and moving fabric by a predetermined distance after the fabric has been completely printed by the printing part (100), wherein the lower body (120) of the printing part (100) comprises: a base (121) for supporting the lower surface of fabric supplied in a state of including pin holes (11) formed therethrough along the left and right edges thereof at regular intervals; and a printing part reference pin (122) protruding from the upper surface of the base (121) and inserted into the pin holes (11) formed through the fabric to control a printing position of the fabric, and the transfer part (200) comprises: a fixed frame part (210) serving as a support structure; a fabric pulling part (220) coupled to the fixed frame part (210) to be able to horizontally move in the front-rear direction; and a transfer part reference pin (221) protruding from the upper surface of the fabric pulling part (220) and inserted into the pin holes (11) formed through the fabric to control a transfer position of the fabric.
Patent KR-20190132225-A (KR)
Title: Method and apparatus for consolidating a bulk molding compound
Inventor: MUKITEO WEIDONG SONG
IPC: B29C70/40
Filed: 2019-05-10
Abstract: The present invention relates to a method and apparatus for consolidating a bulk molding compound. The bulk molding compound is consolidated by sending the bulk molding compound through a die breaker and an extrusion die of a consolidation system.
Patent KR-20200133454-A (KR)
Inventor: MOON HYUN KYU
IPC: B60N2/14
Filed: 2019-05-20
Abstract: The present invention provides a partial swivel device for a vehicle seat, including: first and second lower rails fixed to the floor of a vehicle body, and first and second upper rails mounted on each lower rail to move back and forth; a fixed frame that is provided in a structure in which a pivot hole and a plurality of guide holes for partial swiveling are formed for partial swiveling of the seat, and fixedly mounted on the first and second upper rails; a rotating frame that is mounted on a seat frame placed at the bottom of the seat, is rotationally connected to the pivot hole of the fixed frame, and is rotationally inserted into and coupled to the plurality of guide holes for partial swiveling at a predetermined angle; and a driving device that is mounted between the fixed frame and the rotating frame to rotate the rotating frame at a predetermined angle.