baber/WOPTO huggingface dataset:
Patent KR-20010080083-A (KR)
IPC: G11C7/22
Filed: 1999-09-20
Abstract: 본 발명은 외부로부터 입력되는 입력 신호를 클록 신호에 동기하여 수신하는 클록 동기형의 반도체 장치에 관한 것이다. 본 발명의 반도체 장치는 외부로부터 입력되는 입력 신호를 클록 신호에 동기하여 수신하는 입력 신호 수신부와, 클록 선택 신호를 출력하는 클록 타이밍 선택부와, 클록 선택 신호 및 외부 클록 신호를 수신하여 클록 선택 신호의 신호치에 따른 소정 타이밍의 클록 신호를 생성하여 이 클록 신호를 입력 신호 수신부에 출력하는 클록 생성부를 구비하고 있다. 이로써, 외부 클록 신호의 주파수에 관계없이 입력 신호를 확실하게 수신할 수 있다.
Patent KR-20010111479-A (KR)
IPC: G03F7/11
Filed: 1999-11-24
Abstract: 본 발명은, (1) 기재 상에 도전성 피막 형성용 수지층 및 에너지빔-감응 피막층을 이 순서로 적층하는 공정, (2) 원하는 패턴를 얻을 수 있도록 에너지빔-감응 피막층 표면으로 활성 에너지빔 또는 열선을 마스크를 통해 또는 통하지 않고 직접, 조사하는 공정, (3) 에너지빔-감응 피막층을 현상 처리하고 에너지빔-감응 피막층에 의한 레지스트 패턴 피막을 형성하는 공정, (4) 이어서, 노출된 도전성 피막 형성용 수지층을 현상 처리에 의해 제거하는 공정을 포함하는 것을 특징으로하는 도전성 패턴 형성 방법을 제공한다. 
     또한, 본 발명은, 상기 (1)공정, (2)공정을 행하고, (3') 이어서, 에너지빔-감응 피막층 및 도전성 피막 형성용 수지층을, 동시에 현상 처리에 의해 제거하는 공정을 포함하는 것을 특징으로 하는 도전성 패턴 형성 방법도 제공한다.
Patent KR-20010080569-A (KR)
IPC: C07D405/04
Filed: 1999-11-09
Abstract: 당단백질 IbIX 길항제로서 R, R 1 및 R 2 가 앞서 나타낸 의미를 갖는 화학식 Ⅰ 의 신규한 화합물, 및 그의 염 또는 용매화합물. 
     [화학식 Ⅰ]
Patent KR-20010101165-A (KR)
IPC: H04W36/30
Filed: 1999-12-09
Abstract: 이동무선통신 시스템에 있어서, RF 회로로 전력이 공급되는 기간 (즉, RF 전력기간) 을 최소화하는 것이 바람직하다.     대기모드중에 파일럿 모니터링을 하는 신규한 방법 및 장치는 파일럿 탐색결과의 처리를 RF 전력기간이 지날 때까지 유예시킨다.     이러한 시도는 더 많은 탐색이 RF 전력기간을 확장함이 없이 수행되도록 하여, 배터리 충전수명의 단축없이 휴지중 핸드오프 성능을 개선시킨다.
Patent KR-20010111258-A (KR)
Title: Ａｔｍ 노드내의 내부 제어 경로 설정
IPC: H04L12/56
Filed: 2000-02-11
Abstract: ATM 노드(20, 120)에 내부 제어 경로를 형성하기 위해서는, "반 트레일(HF)"이 처음에 설정되고, 그 다음 이들이 접속하여 완전 트레일(FT)을 형성한다. 스위치 코어(24, 124)에 접속되는 복수의 노드 엔티티(30, 130) 또는 장치 보드를 가진 ATM 노드에 있어서, 각 노드 엔티티마다, 노드 주 프로세서에 의해 실행되는 주 제어 경로 프로그램(70)이 먼저 노드 주 프로세서와 스위치 코어로부터 연장하는 수신 반 트레일과 송신 반 트레일 두 가지를 형성한다. 개별적으로 및 독립적으로, 노드 주 프로세서와 미리 통신하지 않고, 각 노드 엔티티의 엔티티 프로세서(50, 150)에 의해 실행되는 엔티티 제어 경로 프로그램(80)이 자신과 스위치 코어 사이에 수신 반 트레일을 설정한다. 각 노드 엔티티에 있어서, 엔티티 제어 경로 프로그램은 수신 반 트레일로서 동일한 VPI/VCI를 설정한다. 다음으로, 엔티티 프로세서는 개별적으로 설정된 자신의 수신 반 트레일(예컨대, 규정된 VPI/VCI)에 핸드셰이킹 요구를 수신한다. 핸드셰이킹 요구(HR)는 노드 엔티티가 노드 주 프로세서로 제어 셀을 송신하기 위해 송신 반 트레일로서 어떤 반 트레일(예컨대, 다른 어떤 VPI/VCI)을 사용할 수 있는지를 나타내는 정보를 포함한다. 다음으로, 노드 엔티티가 송신 반 트레일을 통해 전송된 응답 메시지(RM)를 이용하여 핸드셰이킹 요구에 응답한다. 단일 단 및 다단 ATM 노드의 실시예가 제공된다. 엔티티 제어 경로 프로그램(80)은 각 노드 엔티티마다 동일한 것이 바람직하다.
Patent KR-20020013845-A (KR)
Title: 에이알큐 프로토콜에서 피드백 응답을 최소화하는 방법
IPC: H04L1/16
Filed: 2000-04-07
Abstract: 오류가 있는 D-PDU들을 표시하고 또한 S-PDU들을 구성하는데 상이한 매카니즘들을 사용할 수 있도록 하는, ARQ 프로토콜에서 피드백 응답(14, 16)을 최소화하는 방법이 기술된다. S-PDU들은 소정의 규정에 따라서 성능을 최적화하도록 구성된다. 한 규정은 S-PDU들의 크기를 최소화하는 것이다. 두번째 규정은 제한된 크기의 S-PDU에 포함되는 SN들의 수를 최대화하는 것이다.
Patent KR-20020008174-A (KR)
IPC: C12N15/81
Filed: 2000-05-05
Abstract: The present invention relates to methods for producing recombinant proteins, in particular recombinant secretory proteins, to a method for identifying nucleic acid molecules the expression products of which permit improved secretion of a recombinant secretory protein, to the use of molecules thus identified for enhancing secretion of heterologous proteins, and to corresponding kit systems. The method according to the invention makes provision for expression in a suitable host cell of a nucleic acid coding for a secretory protein together with a nucleic acid coding for a polypeptide having the biological activity of the eukaryotic translation initiation factor 4 E and/or for a polypeptide having the biological activity of a CaM kinase. It was found that coexpression of the translation initiation factor gene and/or of the CaM kinase gene leads to improved secretion of a desired recombinant protein from the cell.
Patent KR-20010114261-A (KR)
IPC: H04L27/20
Filed: 2001-03-05
Abstract: 예를 들면, 믹서 또는 시그마-델타 변조기일 수 있는 직교 디바이스의 I 및 Q 경로에서의 부정합의 효과를 감소시키기 위하여 상기 경로 상의 데이터는 빠른 속도로 스와핑된다(swap).
Patent KR-20020013547-A (KR)
IPC: A61B3/06
Filed: 2000-05-13
Abstract: 신규한 정신물리학적 시각 테스트가 녹내장환자를 위해 제안되었으며 이는 주파수 이중 현상이 등발광체 색상 시각자극에의해 발생된다는 것을 발견한 것을 기초로 한다. 
     특히, 격자 패턴내의 교대하는 색상이 오직 주파수이중 현상을 발생시킨다는 것을 기초로 하여 시각자극을 발생시키는 것을 제안한다. 즉, 상기 색상은 동일한 휘도 또는 강도 레벨이며, 즉, 등발광체이다. 그러나 각각의 격자 또는 패턴은 한 색상을로부터 다른 색상으로 교대하지 않는다. 상기 색상은 파랑 및 노랑과 같은 보색쌍인 것이 바람직하다.
Patent KR-20020019039-A (KR)
Title: Cross frog
IPC: E01B7/14
Filed: 2000-05-26
Abstract: The invention relates to a cross frog (10) for points and crossings, comprising a cross frog tip (14) and wing rails (16, 18) and running rails (20, 22) situated either side of this point, each with a basic course (38) aligned with a main or secondary track (26, 28). The aim of the invention is to reduce the wear around the cross frog tip without reconstructing the cross frog tip itself or the guard rails allocated thereto or realigning them in relation to each other. To this end, at least one of the running rails deviates from its basic course in the area of the cross frog tip, in such a way that the movement of a rail vehicle running through the main or secondary track is influenced through its wheel frame or bogie axle, away from the cross frog tip.
Patent KR-20030059616-A (KR)
Title: Piping structure of air-conditioner
Inventor: KIM SEUNG CHEON
IPC: F24F1/00
Filed: 2002-01-03
Abstract: PURPOSE: A piping structure of an air-conditioner is provided to improve indoor appearance by improving the piping structure. CONSTITUTION: A second tube(12) connecting an outdoor unit and an indoor unit, and guiding gaseous fluid is branched into at least two tubes to reduce size of protrusion of a tube cover(13) placed on an indoor side. The second tube guiding gaseous fluid and placed on the indoor side is branched into at least two tubes, and the second tube placed on an outdoor side is formed to be single. A tube distributor is placed between the branched tubes and the single tube to merge the branched tubes. Diameter of the branched tube is same with or smaller than diameter of a first tube(11) built in the tube cover and guiding liquefied fluid. An indoor unit and the tube cover of a ceiling type air conditioner are attached on a ceiling. The first tube guiding liquefied fluid and the branched second tube are covered by the tube cover and supported on a surface of the ceiling. Indoor appearance is improved as protrusion of the tube cover is reduced thereby.
Patent KR-20030001214-A (KR)
Title: Polysilicon film forming method
Inventor: HARA AKITO
IPC: C30B1/00
Filed: 2002-01-25
Abstract: PURPOSE: A polysilicon film forming method is provided to increase the yield rate of TFTs(Thin Film Transistors) operating at high speed and fluctuating little by restricting separation of polysilicon film making of uniform silicon crystal. CONSTITUTION: A polysilicon film forming method includes the step of forming a polysilicon film by scanning a laser irradiation region while irradiating a continuous wave laser onto an amorphous silicon film(12) formed into an island or ribbon-like shape on a substrate(10). If the width of a rectangle in which the amorphous silicon film is inscribed is less than 30 micrometer, any one condition that a top end shape of a pattern is a convex shape, a top end shape is a concave shape and has three corner portions at a top end side with straight lines, and both angles of the corner portions on both sides of the top end shape are set to 45 angular degrees or more, a top end shape is a concave shape and comprises curved lines, or the width of a top end portion is below 25 micrometer, is satisfied.
Patent KR-20020079372-A (KR)
Inventor: HONDA SOHEI
IPC: F01M9/10
Filed: 2002-02-14
Abstract: PURPOSE: To provide a lubricating structure of a four-cycle OHC engine having such a configuration that a timing adjusted transmitting means having a driven wheel formed in a single piece with a valve system cam is installed between a crank shaft and a valve system having valve system cam borne rotatably by a shaft supported on the engine body and a lubricating oil is supplied to the valve system chest, wherein the structure is embodied on the sputter lubrication system and nevertheless a sufficient amount of oil can be supplied to the parts to be lubricatied between the valve system cam and driven wheel and the shaft. CONSTITUTION: An oil intake passage 142 with its top opening upward at the bottom of the valve system chest 116 and with its bottom closed is installed between the upper part of the engine body 41 and one end of the shaft 130, and on the lower outer surface of the shaft 130, a flat surface 130a is provided to form an oil passage 143 with its one end put in communication with the oil intake passage 142 between the valve system cam 126 and the driven wheel 131, while the other end of the oil passage 143 is left open facing downward and put in communication with an accommodation passage 128.
Patent KR-20020029880-A (KR)
Inventor: SEO HUI DONG
IPC: A23K1/00
Filed: 2002-02-26
Abstract: PURPOSE: A method for treating drinking water for domestic animals is provided, thereby increasing the growth rate of domestic animals and improving the quality of meat of domestic animals. CONSTITUTION: The method for treating drinking water for domestic animals comprises the steps of: cultivating organic material fermenting microorganisms in a mineral reactor(12) containing active minerals, installed in a fermenter(11) with supplying the drinking water from a drinking water storage tank(1), organic material such as molasses, and chelate organic acid such as citric acid and tartaric acid from an organic acid storage tank(5), and with supplying air using a ventilator(16) through the bottom of the mineral reactor(12) and a fermenter(11); transferring the cultivated microorganism medium to a microorganism concentrating tank(13) and precipitating and concentrating it; and transferring the supernatant and marginal microorganism to a drinking storage tank(1), and transferring the concentrated microorganism to a microorganism-activating tank(7); activating the concentrated microorganism in the microorganism-activating tank(7) comprising a fermenter(8) containing minerals and activated rot material pellet(10) by passing the microorganism through the mineral(9) and the activated rot material pellet(10) with supplying air; and transferring the activated microorganism to a seed cultivating fermenter(11). The microorganism treated drinking water is added to a feed for domestic animal in an amount of 0.1 to 0.5 wt.%.
Patent KR-20030009076-A (KR)
Title: Suspension system for fluorescent lamp
Inventor: LEE JAE U
IPC: F21V21/04
Filed: 2002-03-06
Abstract: PURPOSE: A fluorescent lamp suspension device is provided to simplify configuration and reduce manufacturing cost, while allowing the reflecting shade to be suspended and supported in an easy manner by preventing rotation of the reflecting shade. CONSTITUTION: A fluorescent lamp suspension device(1) comprises a support bar(10) disposed on a reflecting shade(121) in such a manner that the support bar is in a transverse direction with respect to the lengthwise direction of a fluorescent lamp; and a screw unit for moving the support bar in a vertical direction with respect to the reflecting shade. The screw unit includes a female screw portion arranged in an opening formed at the center of the plane of the support bar; and a screw member(61) having a screw portion to be engaged with the female screw portion and a head portion protruded from an end of the screw portion. The screw member is engaged with the support bar, after penetrating through the reflecting shade.
Patent KR-20030073619-A (KR)
Title: Home agent selection method in mobile host support from multicasting environment
Inventor: SON DONG U
IPC: H04L12/18
Filed: 2002-03-12
Abstract: PURPOSE: A method for selecting a home agent under a mobile host support multicasting environment is provided to prevent traffic excess due to multicast datagram tunneling from the home agents of all the terminals belonging to a multicast group by selecting one among the mobile nodes of a multicast group so that only the home agent of the appointed mobile node can execute multicast datagram tunneling. CONSTITUTION: A GGSN(Gateway GPRS Support Node)/FA(Foreign Agent) appoints a forwarding agent and a backup forwarding agent among a plurality of home agents which mobile terminals, belonging to a multicast group, belong to(S110). In case that a signal to request the GGSN/FA to receive a multicast message is received from a home agent(S112), the GGSN/FA judges whether the home agent is the forwarding agent or the backup forwarding agent(S114). If the home agent is the forwarding agent, the GGSN/FA receives the multicast message(S124) and forwards it to a multicast group member(S126). However, if the home agent is the backup forwarding agent, the GGSN/FA receives the multicast message(S118) and judges whether a message has been received from the forwarding agent(S120). If a message has been received, the GGSN/FA discards the multicast message(S122). However, if a message has not been received, the GGSN/FA forwards the received multicast message to a multicast group member(S126).
Patent KR-20030076115-A (KR)
Title: Device For Opening And Closing The Glove Box For Motors
Inventor: KIM YEONG SEOK
IPC: B60R7/06
Filed: 2002-03-22
Abstract: PURPOSE: A glove box opening and closing device for a vehicle is provided to reduce parts, and to cut down expenses by opening and closing the glove box with releasing fitting of the glove box while moving first and second operating rods right and left by turning a lever with operating the knob and operating first and second operating protrusions around a rotating shaft. CONSTITUTION: A glove box(20) is installed in an instrument panel of a passenger seat, and opened and closed by a hinge to store articles. A glove box opening and closing device comprises a lever(44) fitted to the rear part of a knob(40) of the glove box and rotated around a rotating shaft, first and second operating protrusions(48) combined with the lever and protruded circularly in the ends, and first and second operating rods(50,60) operating the glove box by moving symmetrically with inserting first and second operating protrusions to first and second fixing grooves(52,62).
Patent KR-20020034119-A (KR)
Inventor: JUNG JI YONG
IPC: C12G3/04
Filed: 2002-04-02
Abstract: PURPOSE: Provided is a method for manufacturing alcoholic drinks mixed with fruit juice, particularly by adding natural fruit juice to the fermented alcohol, distilled alcohol or refined alcohol. Therefore, the prepared alcoholic drinks mixed with fruit juice have characteristic aroma, bouquet and flavor which are derived from the base and fruit juice. CONSTITUTION: The alcoholic drinks 18% mixed with fruit juice are manufactured by: 1) preparing fermented alcohol by fermenting rice and adding 11wt.%-67wt.% (based on the total weight of the alcoholic drink to be manufactured) of juice of grape, wild grape, apple, strawberry and Rubus coreanus fruit to the prepared fermentation alcohol; 2) preparing 40% distilled alcohol by distilling the above 18% fermentation alcohol and adding 25wt.%-70wt.% (based on the total weight of the alcoholic drink to be manufactured) of juice of grape, wild grape, apple, strawberry and Rubus coreanus fruit to the prepared distilled alcohol; or 3) preparing 40% of refined alcohol by refining 95% raw alcohol with activated carbon and adding 25wt.%-70wt.% (based on the total weight of the alcoholic drink to be manufactured) of juice of grape, wild grape, apple, strawberry and Rubus coreanus fruit to the refined alcohol.
Patent KR-20030081636-A (KR)
Title: Cap assembly and retangular- type secondary battery therewith
Inventor: MAENG SU YEON
IPC: H01M2/04
Filed: 2002-04-12
Abstract: PURPOSE: A cap assembly and a prismatic secondary battery provided with the cap assembly are provided, to allow the separation distance between a cap assembly and an electrode assembly to be maintained by modifying the structure of a spacer. CONSTITUTION: The cap assembly(120) comprises a cap plate(150) which has a rectangular shape for closing the open upper face of a prismatic case(190) receiving an electrode assembly(195), and contains a hole in the center; a pin(130) mounted across the hole of the cap plate; a connection part placed at the lower part of the pin and welded with the electrode tap drawn from the electrode assembly; and spacers(180, 185) which are made of an insulating material and are adhered to the both terminal of the lower part of the cap plate. Preferably the spacer is made of polypropylene, and the cross-section has a T-shape.
Patent KR-20030081849-A (KR)
Inventor: HONG SEOK HWAN
IPC: G03H1/00
Filed: 2002-04-13
Abstract: PURPOSE: A method for irradiating constellations over a globe by using hologram and the globe thereof are provided to realize an effect that the constellations float over a surface of the globe, thereby effectively using the globe for education and decoration. CONSTITUTION: A laser(150) is formed in the center of a globe(100). A first spherical body(60) is formed over the laser. A second spherical body(70) is formed over the first spherical body. A third spherical body(120) is formed over the second spherical body. The laser emits a laser beam from a center point by using power supply. The beam is irradiated to a plurality of beam splitters(50) to be divided into a plurality of beams. The plurality of beams are irradiated to a plurality of films(40) by a smoothing lens to appear constellations(90) over the globe.
Patent KR-20020081135-A (KR)
Inventor: AOKI KAZUHARU
IPC: H03G3/30
Filed: 2002-04-17
Abstract: PURPOSE: To provide a detector circuit that has a large dynamic range and that can be made small. CONSTITUTION: A first rectifier circuit 4 rectifies a transmission signal outputted from a power amplifier and inputs the rectified transmission signal to a first transistor of a voltage-current conversion circuit 23. A second rectifier circuit 5 outputs a reference voltage and inputs the reference voltage to a second transistor 26 of the voltage-current conversion circuit 23. A current that is proportional to the output voltage of the power amplifier is given to a two- terminal PN junction type electronic element 31 obtained by subtracting the output current of the first transistor 25 from the output current of the second transistor 26 through a first current mirror circuit 29. Then, voltage that is proportional to the logarithm of the current is outputted from between both ends of the PN junction electronic element 31.
Patent KR-20020084694-A (KR)
Inventor: RAI VIKRAM
IPC: H04W4/20
Filed: 2002-04-29
Abstract: PURPOSE: A method for delivering information in a communication system is provided to maintain or increase the capacity of the communication system by reducing the competing probability of real time signals and user identified non real time signals for traffic channels or other resources of the communication system. CONSTITUTION: A base station receives a transmitted voice message, and stores received user identified storable information(102). A base station equipment determines a destination and a transmission time of stored user identified storable information(104). The base station transmits an alert signal to a cellular phone over a signaling channel of an air interface(106). The cellular phone sends a response signal to the base station over the signaling channel of the air interface(108). If the response is affirmative, the base station transmits stored information to a destination over an available traffic channel(112).
Patent KR-20020043488-A (KR)
Inventor: JE PYEONG CHI
IPC: D06C15/08
Filed: 2002-04-29
Abstract: PURPOSE: Provided is a heating cylinder drum roller device of the heater brushing machine which is characterized by being possible to maintain a temperature of a surface of a heating drum regularly, reducing installation cost, reducing an installation area and improving quality of products. CONSTITUTION: The heating cylinder drum roller device of the heater brushing machine is comprised of: a flange(3-1) for a stopper installed on an inner cylinder drum(2); the inner cylinder drum(2) connected with the left inside and the right inside of an external cylinder(1) to form a thermal oil receiving chamber(2-1); many flanges(16) arranged on a surface of the inner cylinder drum(2) at equal intervals to form heater insert pipe inserting holes; pipes(3) for inserting a heater inserted into the heater insert pipe inserting holes, fixed on the left flange and expanded in the right direction; and sus heater rods(4) which are inserted into the inside of the pipes(3) for inserting the heater, heating thermal oil and controlling a surface temperature of the external cylinder drum(1).
Patent KR-20020093556-A (KR)
Title: High pressure processing apparatus and method
Inventor: INOUE YOICHI
IPC: B08B7/00
Filed: 2002-05-17
Abstract: PURPOSE: A high pressure processing apparatus and method are provided to be capable of performing a substrate processing by employing a pure high pressure fluid, without allowing any surrounding air components which may have strayed into the processing chamber during the substrate placement to enter a high pressure fluid generation/recovery line. CONSTITUTION: A high pressure processing apparatus for subjecting a substrate to a predetermined process by employing a high pressure fluid comprises: a high pressure fluid supply section; a substrate processing section; a high pressure fluid recovery section for recovering for recycling the high pressure fluid after the high pressure fluid is used for processing the substrate in the substrate processing section; an atmosphere replacement fluid supply section, the atmosphere replacement fluid being of a same composition as that of the high pressure fluid; and a discharge section for discharging a gas residing within the processing chamber(5), wherein, the atmosphere replacement fluid supply section supplies the atmosphere replacement fluid into the processing chamber and the discharge section discharges the gas residing within the processing chamber being expelled with the supply of the atmosphere replacement fluid, during a period after the processing chamber is closed following the placement of the substrate in the processing chamber and until the high pressure fluid begins to be supplied.
Patent KR-20030089743-A (KR)
Title: Method for manufacturing the protein-rich feed from animal by-products to breed livestock and fish
Inventor: KIM DONG JIN
IPC: A23K1/10
Filed: 2002-05-18
Abstract: PURPOSE: Provided is a method for manufacturing a high protein feedstuff for fishes and animals by decomposing waste matters of animals with an alkaline solution and extracting decomposed protein with a acid solution. Therefore, manufacturing time is reduced, the generation of wastewater is inhibited maximumly to prevent environmental pollution, and manufacturing cost is reduced. CONSTITUTION: A method for manufacturing a high protein feedstuff comprises the steps of: collecting waste matters of animals and dipping them in NaOH solution of pH 10; heating the NaOH solution to 50-80 deg.C and holding it for 10-20 minutes to decompose and liquify proteins contained in the by-product; solidifying and simultaneously neutralizing the liquified protein solution by adding HCL solution; and collecting the sludge containing solidified protein and drying it to give a high protein feedstuff.
Patent KR-20030093867-A (KR)
Title: An apparatus and method for controlling speaker status in car audio
Inventor: JANG CHEON JO
IPC: H04R3/00
Filed: 2002-06-05
Abstract: PURPOSE: An apparatus and a method for controlling states of speakers of a car audio system are provided to recognize correctly the present states of the speakers of the car audio system by displaying visually each state of the speakers of the car audio system. CONSTITUTION: An apparatus for controlling a state of a speaker of a car audio system includes a detector(30-33), a display(50), and a controller(80). The detector(30-33) detects each state of plural speakers(40-43) of the car audio system when the electric power is applied to a car audio system. The display(50) displays the states of the speakers(40-43) which are detected by the detector(30-33). The controller(80) controls the states of the speakers(40-43) by an user's selection on the basis of the states of the speakers(40-43).