baber/WOPTO huggingface dataset:
Patent KR-20130010532-A (KR)
Title: Evacuated solar collector module with two tube module each side of one header
Inventor: BAEK NAM CHOON
IPC: F24S10/95
Filed: 2011-07-19
Abstract: PURPOSE: A solar heat collector with a heat pipe type vacuum pipe formed on both sides of a head unit is provided to improve thermal efficiency and to prevent a heat collecting plate from overheating in the summer. CONSTITUTION: A solar heat collector(50) with a heat pipe type vacuum pipe formed on both sides of a head unit comprises a heat collection plate(10), a heat pipe(20), a vacuum pipe(30), and a header unit(40). The vacuum pipe wraps the heat collection plate and heat pipe. The header unit includes a condensing unit inside to deliver the heat of the heat pipe to the outside. The vacuum pipe is horizontally installed for easy installation of the heat collector. The heat collection plate is inclined at a predetermined angle depending on the installation place of the heat collector.
Patent KR-20130011474-A (KR)
Title: A device for shutter pad lock and shutter locking method thereof
Inventor: CHOI KI YEOL
IPC: H02B1/30
Filed: 2011-07-21
Abstract: PURPOSE: A shutter padlock locking device and a shutter locking method using the same are provided to improve work convenience and to obtain economical efficiency. CONSTITUTION: A padlock body forms the body of a shutter padlock. A lever support(140) is inserted into a separate space between a lower side lever(60a) and an upper side lever(60b). A support body is integrally formed with the lever support and padlock body. A padlock pin(130) is hinge-connected to the side of the padlock body. A lever pin(50) is welded to the shutter holder(40) installed on a shutter support(20).
Patent KR-20130011521-A (KR)
Title: Control method for preventing a backward moving of hybrid electric vehicles in slope
Inventor: HAN KYUNG SU
IPC: B60L50/16
Filed: 2011-07-22
Abstract: PURPOSE: A method for controlling HAC(hill start assist control) of a hybrid electric vehicle is provided to determine the operation state of an EHS system and to prevent HAC under a driving condition of idle stop or EV mode. CONSTITUTION: A method for controlling HAC of a hybrid electric vehicle comprises a step of determining the operation state of EHS in a hybrid controller when restarting on the hill and a step of cancelling the EHS operation. The step comprises: a step of confirming operation condition of EHS and determining an operation condition factor(S200); and a step of setting a braking power when the EHS operation condition is satisfied. [Reference numerals] (AA) Start; (BB) End; (CC) Confirming EHS operation conditions; (DD) EHS operation conditions? (EHS switch On and parking switch Off); (EE) Confirming an EHS holding operation; (FF) EHS operation holding condition? (Brake switch On and vehicle speed 0); (GG) Confirming EHS releasing conditions; (HH) Is the EHS released? (EHS switch off or parking switch On); (S100) Starting On?; (S300) Is an EHS system normal? (no malfunction code?); (S500) EHS valve On; (S700) EHS valve Off; (S800) Non-backwardly rolling wheel torque? (actual torque value > calculated torque value)
Patent KR-20120023529-A (KR)
Title: Display brightness control temporal response
Inventor: BARNHOEFER ULRICH T
IPC: H05B44/00
Filed: 2011-07-25
Abstract: PURPOSE: A display brightness control temporal response is provided to control the response rate by controlling the brightness of a display for an electronic device based on ambient light. CONSTITUTION: A display(12) comprises a back light. At least one optical sensor detects an optical level around an optical sensor. A display controller(16) determines the bright level of the backlight based on the optical level. The display controller adjust the back light unit to have the new bright level. The display controller adjusts the back light to be matched with the new bright level close to the physiological reaction of man eye.
Patent KR-20130014984-A (KR)
Title: Tuner module
Inventor: PARK YANG SOO
IPC: H04N5/50
Filed: 2011-08-01
Abstract: PURPOSE: A tuner module is provided to obtain clear output states of a screen and a voice by including a blocking wall, a cover, and a ground end. CONSTITUTION: A circuit board(300) is fixed at a lower side of a chassis(100). An RF(Radio Frequency) switch block(350) including a high-frequency switching IC(Integrated Circuit)(400) and a plurality of filters(800,800') is mounted on a first surface of the circuit board. A ground pattern is formed at a second surface of the circuit board. A cover(200) is fixed at an upper side of the chassis. A blocking wall(600) is formed inside the chassis.
Patent KR-20130021205-A (KR)
Title: Switched reluctance motor
Inventor: JUNG SUNG TAI
IPC: H02K19/10
Filed: 2011-08-22
Abstract: PURPOSE: A switched reluctance motor is provided to have an effect of separating a stator core when a magnet is being inserted into a stator by having an electromagnetic field structure capable of freely inserting the magnet into the stator. CONSTITUTION: A salient pole type stator(110) has multiple teeth(111) and magnets(112). The multiple teeth are wound with coils. The magnet is mounted between the teeth. A salient pole type rotor(120) is inserted into the central part of the stator. The magnet is mounted on the teeth which are positioned between the teeth around which the coil is wound.
Patent KR-20130022128-A (KR)
Inventor: KANG MOON SIK
IPC: H01L29/84
Filed: 2011-08-25
Abstract: PURPOSE: A capacitance pressure sensor is provided to form a second electrode, which is a membrane electrode, have a mesa structure and a concentric structure, thereby obtaining accurate linearity and excellent sensitivity. CONSTITUTION: A capacitance pressure sensor comprises a base substrate(11), a first electrode(12), a second electrode(14), and a chamber(16). The first electrode is formed on the base substrate. The second electrode is protruded in a membrane in order to have a membrane structure and a mesa structure and includes a ring portion(14b) forming the mesa structure of a concentric shape. The second electrode is arranged to face the first electrode. The chamber supports both end portions of the second electrode and is joined to the base substrate in order to have a space where the second electrode can flow to the first electrode.
Patent KR-20130022654-A (KR)
Inventor: LEE SEUNG HYUN
IPC: G02F1/1343
Filed: 2011-08-25
Abstract: 본 발명은 액정표시장치 및 그 제조방법에 관한 것으로, 개시된 발명은 절연기판상에 형성된 박막트랜지스터; 상기 박막트랜지스터를 포함한 기판 전면에 형성된 패시베이션막; 상기 패시베이션막을 관통하여 상기 박막트랜지스터의 일부분과 전기적으로 연결되며, 불투명 금속층패턴과 투명 금속층패턴의 적층 구조를 가지며, 상기 투명 금속층패턴이 상기 불투명 금속층패턴보다 좁은 폭을 갖고 형성되는 화소전극;을 포함하여 구성된다.
Patent KR-20130024119-A (KR)
Title: Air blower for fuel cell vehicle
Inventor: LIM CHA YOU
IPC: F04D29/58
Filed: 2011-08-30
Abstract: PURPOSE: An air blower for a fuel cell vehicle is provided to improve the cooling efficiency of a motor as a surface area contacting to air flowing into a motor housing unit is widened by a radiating member formed on a surface of the support rib. CONSTITUTION: An air blower for a fuel cell vehicle comprises an inlet duct(200), a motor housing unit(300), an impeller housing unit(400), an impeller(410), and a support member(500). The inlet duct includes an air inlet(210). The motor housing unit is joined to a rear end of the inlet duct, and a motor(310) is installed in inside. The impeller housing unit is joined to a rear end of the motor housing unit, and an air outlet(422) is formed in one side of the impeller housing unit. The impeller is installed inside the impeller housing unit, thereby compressing air while being rotated by the motor. The support member is joined to a rear end of the impeller housing unit, thereby supporting a rotary shaft(311) of the motor to be rotatable. A plurality of support ribs for cooling is separately formed on a passage between the motor housing unit and the motor. At least one of radiating members is extended in surfaces of the support ribs along a longitudinal direction of the passage.
Patent KR-20110106263-A (KR)
Inventor: KWON HAK CHEOL
IPC: H04L12/12
Filed: 2011-09-08
Abstract: 본 발명은 건축물의 스마트절전시스템에 관한 것으로, 더 상세하게 설명하면, 지금까지 건축물에서 에너지 절약을 위하여 조명제어시스템을 적용하여 왔으나, 건물 전체에서 조명이 차지하는 부하로는 에너지 절약효과가 미비하였고, 콘센트 부하는 통합적인 배관/배선의 문제로 제어시스템을 적용하지 못하여 왔었다. 
이에 본 발명은 건물 내 각 실 별로 사용자의 재실 유/무를 실시간(real time)으로 감지하여, 자동으로 조명부하와 전원콘센트부하를 ON/OFF시켜 최대한의 절전을 도모하고, 사용자 퇴실 후 외부 침입자가 있을 경우, 관리자가 그 침입 사실을 문자통보(SMS)와 함께 시각적, 청각적으로 확인할 수 있는 있도록 하며, 각 실 별 조명부하와 콘센트전력의 사용정보를 중앙서버(server)에서 수집하여 감시 및 원격제어가 가능토록 함과 동시에 원격감시제어기에서도 건물 내 조명과 콘센트에너지 사용상태를 감시하고 원격제어가 가능하도록 함을 목적으로 하는 건축물의 스마트절전시스템에 관한 것이다. 
따라서, 본 발명은 상기 목적을 달성하기 위해 실내의 움직임을 감지하는 적외선센서(11)와, 실내의 밝기를 감지하는 조도센서(12)와, 경보음을 내는 부저(13)와, 스마트스위치(20) 및 스마트콘센트(30)와 무선으로 송수신하는 송수신부(SS)와, 중앙서버(42)와 유선으로 연결되어 송수신하는 네트워크단자(14)와, 상기를 관장하고 제어하는 마이크로컨트롤러(MC)로 구성되는 스마트센서(10)와; 
실내의 조명을 ON/OFF 하는 수동버튼(21)과, 설정을 자동/수동/방범모드로 선택 및 설정 값을 셋팅할 수 있는 선택버튼(22)과, 모드선택의 표시 및 셋팅된 설정 값을 나타내는 디지털표시부(23)와, 스마트센서(10)와 무선으로 송수신하는 송수신부(SS)와, 조명의 전력공급을 자동으로 ON/OFF 하는 릴레이(RE)와, 상기를 관장하고 제어하는 마이크로컨트롤러(MC)로 구성되는 스마트스위치(20)와; 
실내의 전기기구에 전원을 공급하는 다수의 전원플러그삽입용 소켓(31)과, 설정을 상시/절전모드로 선택 및 설정 값을 셋팅할 수 있는 선택버튼(32)과, 모드선택의 표시 및 셋팅된 설정 값을 나타내는 디지털표시부(33)와, 스마트센서(10)의 신호를 수신하는 수신부(SS1)와, 전원플러그의 전력공급을 자동으로 ON/OFF 하는 릴레이(RE)와, 상기를 관장하고 제어하는 마이크로컨트롤러(MC)로 구성되는 스마트콘센트(30)와; 
건물 전체 각 실내의 스마트센서(10)와 연결된 네트워크단자(14)를 취합하여 스마트센서(10)와 송수신하며, 외부의 인터넷통신망과 연결된 네트워크서버(41)와, 네트워크서버(41)에서 각자의 스마트센서(10)가 보내주는 신호를 감지하여 데이터화하고, 스마트스위치(20) 및 스마트콘센트(30)가 보내주는 신호를 개별 및 총괄하여 실시간으로 표시하는 디스플레이부(43)와, 관리자의 작동명령을 전달하는 제어부(44)로 구성되는 원격지중앙서버(40)와; 
외부에서 무선으로 인터넷통신망을 통해 중앙서버(42)의 접속하여 정보를 송수신하고, 중앙서버(42)에 직접 작동명령을 전달하는 원격감시제어기(50)를 구비하여서, 
상기 스마트센서(10), 스마트스위치(20), 스마트콘센트(30)를 건물의 각 실에 상호 간에 무선으로 통신할 수 있도록 설치하고, 상기 각 실의 스마트센서(10)는 각자의 네트워크단자(14)를 네트워크서버(41)에 접속시켜 건물 전체의 스마트센서(10)를 작동을 관리하는 중앙서버(42)와 연결하며, 상기 중앙서버(42)는 네트워크서버(41)를 통해 외부 인터넷통신망에 접속시켜 원격감시제어기(50)에 의해 외부에서도 원격감시 및 제어되도록 함을 특징으로 하는 건축물의 스마트절전시스템을 제공한다.
Patent KR-20130029293-A (KR)
Title: Optical input/output device and metho for fabricating the same
Inventor: KANG PIL KYU
IPC: G02B6/12
Filed: 2011-09-14
Abstract: PURPOSE: An optical IO device and a manufacturing method thereof are provided to prevent a crystal defect on a propagation path of an optical signal and thereby improve the reliability. CONSTITUTION: An optical IO device comprises a substrate(100), a waveguide(200), a photo-detector(300), and a light-transmitting insulating layer(145). The substrate comprises a trench. The waveguide is located within a top trench of the substrate. The photo-detector is located within the top trench of the substrate and is optically connected with an end surface of the waveguide. The light-transmitting insulating layer is located between the end surface of the waveguide and a first end surface of the photo-detector.
Patent KR-20130030076-A (KR)
Title: Realtime flow rate measuring device and method using weir and level meter for pipe or open channel
Inventor: KIM WEON JAE
IPC: G01C13/00
Filed: 2011-09-16
Abstract: PURPOSE: A real-time flow rate measurement device and a method thereof of a water pipeline using weir and a water level measurement unit or an open channel are provided to monitor flow rate in real time by measuring the flow rate within the wear in real time and to manage data of the flow rate in long distance by wire or wireless. CONSTITUTION: A real-time flow rate measurement device of a water pipeline or an opening channel comprises a weir(20), a sounding unit(40), a transmission unit(50), a receiving unit(60), a storage unit(70), and an arithmetic unit(80). The weir is installed in the water pipeline or the opening channel. The sounding unit sounds the depth of water in the weir by contactless mode or water pressure mode. The transmission unit is connected to the sounding unit and transmits data of the depth of water which is measured by the sounding unit. The receiving unit is connected to the transmission unit by wire or wireless and receives the data of the depth of water from the transmission unit. The storage unit stores the data of the depth of water which is received by the receiving unit and stores conversion formula of the flow rate according to form of the weir. The arithmetic unit calculates overflow core based on the depth of water which is stored in the storage unit and produces the flow rate by the conversion formula and the overflow core.
Patent KR-20120030980-A (KR)
Title: Air-cooled motor-generator and method for operating such a motor-generator
Inventor: SCHWERY ALEXANDER
IPC: H02K9/06
Filed: 2011-09-20
Abstract: PURPOSE: An air-cooled motor generator and an operating method thereof are provided to accurately match an air volume flow of cooled air with each condition by including a throttling device. CONSTITUTION: A rotor(34) is rotatably arranged around a device shaft(15). The rotor includes a rotor shaft(11) in which a rotor winding(16) is arranged. A stator(35) includes a stator stack(18) and a stator winding(17). A closed cooling circuit is operated with cooled air(24). The air is cooled at a cooler(19) arranged in the outer side of the stator.
Patent KR-20130031557-A (KR)
Title: Pharmaceutical composition for treatment rheumatoid arthritis comprising multi-functional nanoparticles
Inventor: YOO KYUNG HWA
IPC: A61K47/48
Filed: 2011-09-21
Abstract: PURPOSE: A composition containing multifunctional nanoparticles for rheumatoid arthritis is provided to control drug release rate by regulating decomposition rate of biodegradable nanoparticles and to remove non-invasive synovial membrane. CONSTITUTION: A composition for treating rheumatoid arthritis contains a multifunctional nanoparticle. The multifunctional nanoparticle comprises: a polymer nanoparticle containing an antirheumatic drug; a magnetic material thin film which is partially deposited on the surface of the nanoparticle; and a gold thin film which is deposited on the magnetic material thin film. The magnetic material is selected from the group consisting of Co, Mn, Fe, Ni, and Gd. [Reference numerals] (AA) Multifunctional nanoparticles for rheumatoid arthritis; (BB) Synergistic treatment effect; (CC) Angiogenic inhibitory effect; (DD) Gold thin film; (EE) Methotrexate; (FF) Anti-inflammatory effect; (GG) Near infrared rays; (HH) Heat; (II) Inflammatory cell extinction, pain relieving, and near infrared ray absorbing images; (JJ) Rheumatoid arthritis targeting material; (KK) Magnetic thin film; (LL) External magnetic field-based inflammatory are targeting and MRI images; (MM) Double target and double image
Patent KR-20130034127-A (KR)
Title: A wafer notch wheel and an apparatus for grinding a wafer notch
Inventor: AHN JIN WOO
IPC: B24B9/06
Filed: 2011-09-28
Abstract: PURPOSE: A wafer notch wheel and a grinding device are provided to replace a unit wheel only when damaged, abraded, or deformed because a plurality of wheels in a connecting protrusion part has a structure to be individually connected. CONSTITUTION: A wafer notch wheel a body, a connecting protrusion part(320), a plurality of unit wheels(330-1 - 330-4), and a connecting fixing part(340). The connecting protrusion is equipped on one end of the body. The plurality of unit wheels is inserted to the connecting protrusion and includes a groove processing the wafer notch. The connecting fixing part is connected to one end of the connecting protrusion and fixes a plurality of unit wheels to the connecting protrusion.
Patent KR-20120084249-A (KR)
Title: Dispersing method and stablizing methos of quantum dots or quantum wires in zeolite, and quantum dots or quantum wires-including zeolite by the same
Inventor: YOON KYUNG BYUNG
IPC: C01B39/24
Filed: 2011-09-29
Abstract: PURPOSE: A method for dispersing and stabilizing quantum dots or quantum wires in zeolite and quantum dot-containing or quantum wire-containing zeolite based on the method are provided to uniformly disperse quantum dots or quantum wires in the cage of the zeolite. CONSTITUTION: Zeolite containing quantum dots or quantum wires is treated with basic gas. The quantum dots or the quantum wires are uniformly dispersed in the pores of the zeolite. The quantum dots or the quantum wires are based on metals, oxides, or compound semiconductors. The compound semiconductors are selected from a group including CdS, CdO, CdSe, CdTe, ZnS, ZnO, ZnSe, ZnTe, MnS, MnO, MnSe, MnTe, MgO, MgS, MgSe, MgTe, CaO, CaS, CaSe, CaTe, SrO, SrS, SrSe, SrTe, BaO, BaS, BaSe, BaTE, HgO, HgS, HgSe, HgTe, Al_2O_3, Al_2S_3, Al_2Se_3, Al_2Te_3, Ga_2O_3, Ga_2S_3, Ga_2Se_3, Ga_2Te_3, In_2O_4, In_2S_3, In_2Se_3, In_2Te_3, SiO_2, GeO_2, SnO_2, SnS, SnSe, SnTe, PbO, PbO2, PbS, PbSe, PbTe, AlN, AlP, AlAs, AlSb, GaN, GaP, GaAs, GaSb, InN, InP, InAs, InSb, BP, Si, Ge, or the combination of the same.
Patent KR-20120117618-A (KR)
Title: Catheter for inserting into a gastric
Inventor: LEE YO SEONG
IPC: A61M31/00
Filed: 2011-10-10
Abstract: PURPOSE: A gastric inserting catheter is provided to prevent the catheter from escaping from a gastrointestinal tract and facilitate the insertion operation of the catheter into the gastrointestinal tract. CONSTITUTION: A gastric inserting catheter includes a tubular main body(11), a first opened part(14), and a second opened part(12a). The first opened part is formed at one end part of the main body. The second opened part is at another end part of the main body. Fluid is drained from the main body to a stomach through the first opened part, and contents enter from the stomach to the main body through the first opened part. Fluid enters from the main body to the stomach through the second opened part, and contents are drained from the stomach to the main by through the second opened part. A detachable cap(30) is arranged at the second opened part. A fluid injection pipe is positioned in the main body and includes an expanding part at the joint position of an esophagus and the stomach.
Patent KR-20130039236-A (KR)
Title: 스핀들 모터
Inventor: OH MYUNG GEUN
IPC: G11B19/20
Filed: 2011-10-11
Abstract: 본 발명은 회전축, 허브 및 마그네트를 포함하는 회전부와, 상기 회전축을 회전가능하도록 지지하는 슬리브, 상기 슬리브가 결합되는 베이스, 및 상기 마그네트와 대향되고 상기 베이스에 고정결합되고, 코어 및 코일로 이루어진 전기자를 포함하는 고정부로 이루어지고, 오일이 충전되어 상기 회전부와 상기 고정부 사이에 유체동압 베어링부가 형성된 스핀들 모터로서, 상기 슬리브와 회전축의 축방향 면접촉 마찰을 방지하기 위해 상기 슬리브와 회전축의 서로 대향되는 일면에 선택적으로 코팅층이 형성된다.
Patent KR-20130025311-A (KR)
Title: Apparatus for rehabilitation of shoulder joint and method for operating the same
Inventor: LEE GANG UP
IPC: A61H1/00
Filed: 2011-10-12
Abstract: PURPOSE: A rehabilitation apparatus for shoulder joints and an operation method thereof are provided to improve a rehabilitation treatment according to the willingness and capacity of a patient to exercise. CONSTITUTION: A rehabilitation apparatus for shoulder joints comprises a supporting unit(110) which supports a lower arm of a patient; a first driving unit which supplies power to the supporting unit in order to rotate in a first direction; a second driving unit which supplies power to the supporting unit in order to rotate in a second direction; a measuring unit(130) which measures a force applied to the supporting unit when the patient exercises; a controlling unit(140) which selectively controls the first and second driving units based on the magnitude and direction of the force measured by the measuring unit; and a criterion setting unit(150) which sets up a respective criterion value for selectively operating the first and second driving units by the controlling unit. [Reference numerals] (110) Supporting unit; (131) First measuring unit; (132) Second measuring unit; (140) Controlling unit; (151) First criterion value setting unit; (152) Second criterion value setting unit
Patent KR-20130039870-A (KR)
Title: Method for manufacturing detoxificated lacquer solution
Inventor: KIM JUNG GEUN
IPC: C09D193/00
Filed: 2011-10-13
Abstract: PURPOSE: A manufacturing method of a detoxified lacquer solution is provided to directly detoxify lacquer solution extracted from a lacquer tree, thereby obtaining the detoxified lacquer solution with excellent medicinal effect and high concentration. CONSTITUTION: A manufacturing method of a detoxified lacquer solution is provided to add emulsifier and water into lacquer solution extracted from a lacquer tree, to generate a liquid lacquer-emulsified solution; a pre-detoxification step of a specific wavelength ray-irradiating the solution for a specific time; and a step of adding plants into the solution and a specific wavelength ray-irradiating the solution for a specific time for detoxification. [Reference numerals] (AA) Collecting a lacquer solution; (BB) Emulsifying solution; (CC) Pre-detoxification process; (DD) Detoxification process; (EE) Removing precipitate; (FF) Obtaining detoxified solution;
Patent KR-20130041479-A (KR)
Title: Spark time control method for engine
Inventor: KIM SEUNG BUM
IPC: F02P5/145
Filed: 2011-10-17
Abstract: PURPOSE: An ignition timing control method is provided to satisfy a user to reduce noise of an engine and to prevent durability of the engine from being weakened by preventing knocking of a gasoline engine from repeatedly being generated. CONSTITUTION: An ignition timing control method comprises a first knocking sensing step(S10), a maintenance operating step(S20), an ignition sensing step(S30), a base-down shift step(S40), a second knocking sensing step(S50), an ignition spark step(S60), and a base-up shift step(S70). The first knocking sensing step senses generation of knocking. The maintenance operating step performs the first knocking sensing step and operates an engine by using a present base ignition timing map. The ignition sensing step senses ignition timing when the knocking is generated. The base-down shift step shifts the base ignition timing map when the knocking is generated. The second knocking sensing step senses the generation of the knocking after performing the base-down shift step. The ignition spark step sparks the ignition timing when the knocking is not generated after the second knocking sensing step. The base-up shift step shifts the base ignition timing map when the knocking is not generated after the second knocking sensing step. [Reference numerals] (AA) Starting an engine; (BB) Ignition timing delay equal to or greater than 4 degrees?; (S10,S50) Knocking generated?; (S20) Driving the engine according to the current base ignition map; (S30) Delaying the ignition timing; (S40) Down-shifting the base ignition timing; (S70) Up-shifting the base ignition timing;
Patent KR-20130042673-A (KR)
Title: Method of cooperative inter-cell interference managemenet using a cooperative cluster for power saving and device using the method
Inventor: SUNG DAN KEUN
IPC: H04W16/10
Filed: 2011-10-17
Abstract: PURPOSE: A cooperative interference control method between multiple cells and a device using the same are provided to effectively assign voltages to a sub-channel of terminals included in a cooperative cluster by using a cooperative method between nodes. CONSTITUTION: A frequency resource assignment unit(610) assigns frequency resources used in a cooperative cluster to a plurality of exclusive bands and a reuse band according to an FFR(Fractional Frequency Reuse) method. A mode selecting unit(620) selects one mode related to the assignment of a sub-channel for terminals included in the cooperative cluster based on power consumption consumed in the cooperative cluster. A sub-channel assignment unit(630) assigns sub-channels for the terminals according to the selected mode. [Reference numerals] (610) Frequency resource assignment unit; (620) Mode selecting unit; (630) Sub-channel assignment unit;