baber/WOPTO huggingface dataset:
Patent KR-20000033850-A (KR)
Title: Bainite steel for high strength and tension bolts having high delayed fracture resistance and preparation thereof
Inventor: CHOI HAE CHANG
IPC: C21D8/06
Filed: 1998-11-26
Abstract: PURPOSE: A bainite steel for high tension bolts is provided, which is used as a bolt steel in its structural engagement and automobile parts, to give a high delayed fracture resistance. CONSTITUTION: The 90% or more of the bainite is characterized by comprising 0.4 to 0.60wt% of C, 2.0 to 4.0wt% of Si, 0.2 to 0.8wt% of Mn, 0.25 to 0.8wt% of Cr, 0.01wt% or less of P, 0.01wt% of S, 0.005 to 0.01wt% of N, 0.005wt% or less of O, and one or two type of 0.05 to 0.2wt% of Ba, 0.05 to 0.2wt% of Nb, 0.3 to 2.0wt% of Ni, 0.001 to 0.003wt% of B, 0.01 to 0.5wt% of Mo, 0.01 to 0.2wt% of Ti, 0.01 to 0.5wt% of W, 0.01 to 0.2wt% of Cu, 0.01 to 0.5wt% of Co, and the remainder being Fe and the evitable impurities. The process is comprised of heating the given bainite for 20min or more to give the austenite mono phase, quenching the austenite to 60°C plus or minus 30°C at 70°C/sec or more, heat-treating the resultant for 20min or more, and oil cooling and air cooling them.
Patent KR-20000037789-A (KR)
Title: Eccentric scroll housing for blower
Inventor: LEE JUN SE
IPC: F04D29/40
Filed: 1998-12-02
Abstract: PURPOSE: An eccentric scroll housing for blower is provided to increase the flow while reducing noise by uniformly maintaining the fluid flow introduced from a suction hole since the center of the scroll housing is eccentrically positioned with relation to the center of the impeller toward a loss area. CONSTITUTION: A blower having an eccentric scroll housing includes a scroll housing(51) for guiding flow of fluid to introduce the fluid via an opened suction hole(51a) at upper and lower parts and discharging the fluid via a discharge hole(51b) perpendicularly folded, an impeller(52) mounted in the scroll housing and having a plurality of blades(52a) connected with a rim(52b) for generating flow of fluid, and a bell mouse(53) mounted at an upper part of the blade(52a) at an end part of the suction hole of the scroll housing for guiding the flow of fluid, wherein the center of the impeller is eccentric with relation to the center of the scroll housing, and the center of the scroll housing is eccentric in the range of an angle 270 degree to 360 degree to be located in a loss area generated in the suction hole.
Patent KR-20000038540-A (KR)
Title: Indoor fountain
Inventor: RYU SEUNG WAN
IPC: B05B15/00
Filed: 1998-12-05
Abstract: PURPOSE: An indoor fountain is provided for dehumidifying or humidifying to generate steam when sprayed water by operating a heating device in summer time or to absorb water in air when sprayed water by operating a cooling device in winter time, respectively. CONSTITUTION: An indoor fountain is designed to spray water by a nozzle with circulating stored water in a tank of the upper part by a water pump. A water container made of metals is formed as a body in the lower part of the tank. A heating device is installed inside the water container by using a hot-wire to heat water to the lower temperature of the boiling point. A general cooling device comprises a compressor, a condenser, a capillary tube and a heat exchanging tube which cools water to a higher temperature than the freezing point by turning on an outer surface of the water container and makes an air-cooling of the condenser by installing on the outside of the body. A controller electrically connected to the water pump, the heat wire and the compressor is installed on the outside of the body for controlling each of the function for humidifying or dehumidifying.
Patent KR-20000038648-A (KR)
Title: Method and device for detecting mode of magnetic recording reproducer
Inventor: CHOI DO YEONG
IPC: G11B15/02
Filed: 1998-12-08
Abstract: PURPOSE: A method for detecting the mode of a magnetic recording reproducer is provided to reduce producing cost by detecting a reference mode by using an inexpensive standard switch while detecting the other modes by using the FG of a capstan motor. CONSTITUTION: The modes of a magnetic recording reproducer, such as an ESP mode, an EJECT mode, a ULS mode, a STOP mode, and a PB mode are detected by the rotating angle of a cam gear(3) rotated by the driving force of a driving source. Herein, a standard mode is detected by using a usual pushing switch, which is turned on/off by physical pushing operation. Also, the other modes are detected by counting the FG of the driving source in the base on the signal of the standard mode and by calculating the FG count value of the driving source and the signal of the standard mode. Therefore, the standard mode is detected by using inexpensive pushing switch while detecting the other modes by using the FG of a capstan motor(M) for reducing producing cost. Moreover, the structure for detecting each mode is simplified for improving assembling efficiency and for improving productivity.
Patent KR-20000038731-A (KR)
Title: Wireless microphone system having anti-theft function
Inventor: SON BYUNG O
IPC: H04R3/00
Filed: 1998-12-09
Abstract: PURPOSE: A wireless microphone system having an anti-theft function is provided to prevent a wireless microphone from stealing by adding the anti-theft function to a wireless transmitter and a wireless receiver. CONSTITUTION: A wireless microphone system comprises a transmitter and a receiver. The transmitter is provided with an anti-theft function. The receiver is also provided with the anti-theft function. If the power of the transmitter is off or the signal generated from the transmitter is below a predetermined signal which is preset in the signal receiver, an alarm device(12) is operated. By the operation of the alarm device(12), the wireless microphone can be prevented from stealing. The receiver detects the signal generated from the transmitter and sends the signal to a microcomputer(5).
Patent KR-20000040095-A (KR)
Title: Process for producing polyester film
Inventor: KIM MOON SUN
IPC: B29D7/01
Filed: 1998-12-17
Abstract: PURPOSE: A polyester film is provided which has improved printing properties, usefully as printing paper, drawing paper. CONSTITUTION: A polyester film is produced by the following steps: preparing a master chip comprising a polyester resin having an intrinsic viscosity of 0.6-1.0 dl/g, 1-20 pts.wt. (based on the polyester resin) of circular inorganic micro particles having a particle size of 1-10 micrometer such as a silica, a titanium dioxide, a barium sulfide, and a calcium carbonate, 1-5 pts.wt. (based on the polyester film) of a titanium chelate compound (formula 1) in a compound wherein a first entrance temperature is 210-250°C, a final exit temperature is 250-290°C, and a discharged resin temperature is 255-300°C; mixing the master chip and the polyester resin having the same intrinsic viscosity; extruding, stretching and coating the mixed resin with a polymer aqueous solution containing 1-5 wt% of a polyester resin with a sulfonate, 0.1-1.0 wt% of a polyurethane resin. The thickness of the film will be 0.1-3 g/m2. In the formula, X is an alkyl of 1-3, R is a chelate compound containing an amine, an acetoacetyl.
Patent KR-19990063164-A (KR)
IPC: B24B9/04
Filed: 1998-12-17
Abstract: This apparatus has plural fixed grinding machines (10,11), which are installed along the direction of travelling line of billets (1). And, facing pair of grinders (3,4) are equipped in a manner that the distances between each facing pair of grinders (3,4) are gradually shorter along the travelling direction of the billets (1) from the upstream side to the downstream side. In such a multiple-stage grinding machine, the burr on the welded part of the top and bottom side of the billet (1) are ground sequentially by the grinders (3,4), and the burr on welded part of the right and left side of the billet are ground sequencially by the grinders (3,4). <IMAGE>   <IMAGE>
Patent KR-20000040347-A (KR)
Title: Electric source supplying device of a variable switching mode
Inventor: WOO JONG HYUN
IPC: H02M3/28
Filed: 1998-12-15
Abstract: PURPOSE: An electric source supplying device of a variable switching mode is provided to minimize the influence of EMI by using a circuit device which changes the output timing and the frequency of the electric source switching pulse signal. CONSTITUTION: An electric source supplying device of a variable switching mode comprises an EMI filter(11), a rectifier(12), a transformer(13), a rectifier(14), a switching device(18), a pulse generating device(17), an initial driving circuit(15), a frequency setting circuit(16), a frequency changing circuit(19). The frequency changing circuit(19) changes periodically changes the setting value of the frequency setting circuit(16).
Patent KR-20000043862-A (KR)
Title: Guidance document synchronous method in conversation-type guide system
Inventor: YUN JA CHEON
IPC: H04L7/00
Filed: 1998-12-29
Abstract: PURPOSE: A guidance document synchronous method is provided to prevent a confusion in counsel by making a guider and an inquirer show a synchronized guidance document each other. CONSTITUTION: In a guidance document synchronous method, an inquirer system is connected to a counselor system(21), and a control authority is initialized(22). There is judged whether the control authority belongs to any one(23). If the control authority belongs to a counselor, there is judged whether an uniform resource locator(URL) of the counselor is changed(24). In a case where the URL is changed, the changed URL is sent to the inquirer through a document synchronous module(25), and then the procedure goes to the step(24). In a case where the URL of the counselor is not changed, there is judged whether the control authority is provided from the counselor system to the inquirer system(26). If so, the procedure goes to the step(23). If not, the procedure goes to the step(24). In the step(23), if the control authority belongs to the inquirer, there is judged whether an uniform resource locator(URL) of the inquirer is changed(27). In a case where the URL is changed, the changed URL is sent to the counselor through the document synchronous module(28), and then the procedure goes to the step(27). In a case where the URL of the counselor is not changed, there is judged whether the control authority is provided to the counselor system from the inquirer system(29). If so, the procedure goes to the step(23).
Patent KR-20000043920-A (KR)
Title: Metal contact of semiconductor device
Inventor: KIM WU HYEON
IPC: H01L21/28
Filed: 1998-12-29
Abstract: PURPOSE: A metal contact of the semiconductor device is provided by preventing a junction breaking of the low portion of the contact hole through forming an epitaxial silicon layer as much as a required thickness, and so as to have a stable resistance value when forming the metalization. CONSTITUTION: A method of forming the metal contact of the semiconductor device contains the following steps: a step to furnish a substrate having a lower structure which the contact holes are formed; a step to ionize the silicon particles by treating plasma, after forming the silicon particles with sputtering a silicon target through loading the substrate to the sputter system; a step to form the epitaxial silicon layer at the low portion of the contact hole with moving the silicon ions to the interior of the contact hole by applying bias to the sputter system; a step to form orderly a titanium layer and a titanium nitride layer at the top portion of the structure; and a step to form a titanium silicide layer at the low portion of the contact hole through reacting the silicon of the epitaxial silicon layer with the titanium of the titanium layer by a thermal treatment.
Patent KR-20000046448-A (KR)
Title: Construction method of building by using air film body
Inventor: KANG DONG WOO
IPC: E04G11/04
Filed: 1998-12-31
Abstract: PURPOSE: A construction method of buildings by using an air film body is provided to simply construct a building having a complex external appearance by using an air inserting type mold. CONSTITUTION: A first layer is sprayed by a reinforcer, and then a second layer is sprayed when FRP(Fiber Reinforced Plastics) of the first layer is hardened. Herein, the first and second layers are sprayed to exist a first overlapping layer where a certain area is overlapped. A fourth, a fifth and a sixth layer are also sprayed to exist each a second, a third, a fourth and fifth overlapping layer. A frame is installed in a mold to keep the structure of a building, and a basic frame is constructed by using a H beam, steel concrete, steel materials, timbers and so on. After finishing a framework, an air film body is illuminated, and a window, an exit and all kinds of internal material are installed. Then, an insulation, a waterproof, a soundproof and interior or external decorations are accomplished.
Patent KR-20000064403-A (KR)
Title: 9(s-(r,r))-3-메틸-2-(3-옥소-3h-벤조d)이소티아졸-2-일)펜탄산및(s-rr)),l-2-(2-(2-(1-카르복시-2-메틸부틸카르바모일)페닐디술포닐)벤조일아미노)-3-메틸펜탄산의제조방법
IPC: C07D275/04
Filed: 1996-11-27
Abstract: 본 출원에는 [S-(R * , R * )]-3-메틸-2-(3-옥소-3H-벤조(d)이소티아졸-2-일)펜탄산 및 [S-(R * , R * )], L-2-(2-(2-(1-카르복시-2-메틸부틸카르바모일)페닐디술포닐)벤조일아미노)-3-메틸펜탄산의 합성 방법이 개시되어 있다.
Patent KR-19990077004-A (KR)
Title: 이온주입 시스템용 이온빔 실드
IPC: H01L21/677
Filed: 1997-02-14
Abstract: 이온주입 시스템은 프로세스챔버(318)에 연결된 이온 소오스(330)와 프로세스챔버 내에 설치되는 작업재 지지대(348)를 가지는 작업재처리 어셈블리(320)를 가진다. 시스템은 포토레지스트가 코팅된 작업재에 이온을 주입하여 작업재의 전도성을 변화시킨다. 이온 소오스의 일부가 방출된 포토레지스트로 코팅되는 것을 방지하기 위하여 프로세싱 동안 작업재 지지대와 이온 소오스 사이에 위치되는 이온빔 실드(410)가 제공된다.
Patent KR-19990081999-A (KR)
IPC: B05B11/00
Filed: 1997-01-31
Abstract: Aerosol intended for dispensing several components for the production of a multi-component material comprising a dispensing assembly, a main container and one or more separate auxiliary containers for components to be dispensed, piston pumps, control part, piston chamber and non-return ball check valve.
Patent KR-20000064646-A (KR)
Title: 자동차에대한서비스제공
Filed: 1997-03-20
Abstract: 서비스 구역 (2) 에 위치한 자동차 (1) 에 대한 서비스를 제공하고,  추가로 자동차 (1) 와 자동차를 서비스하는 작동을 자동적으로 연관시키기위한 수단으로 이루어진 시스템에 있어서,  자동차 (1) 은 자동차 안테나 (12) 에 연결된 수신기-송신기를 포함하는 자동차 프로세싱 장치 (10) 및 자동차 프로세싱 장치를 수동으로 가동시키는 수단이 장착되고,  서비스 구역 (2) 가 서비스 (3) 을 제공하는 수단,  거래를 등록하는 수단 및 제공된 서비스에 대해 사람 또는 회사에 요금을 청구하는 수단을 포함하는,  서비스 안테나 (22) 에 연결된 수신기-송신기를 포함하는 구역 프로세싱 장치 (20) 를 특징으로 하는 시스템,  상기 수단은 서비스 (5) 를 제공하기 위한 수단에 위치한 패시브 태그 (30),  자동차 (1) 상에 위치한 패시브 태그를 충전하기 위한 수단  및  자동차 프로세싱 장치 (10) 에 연결된 자동차 (1) 상에 제 2 안테나 (33) 을 포함할 수 있다.
Patent KR-20000010540-A (KR)
Title: Novel pyridonecarboxylic acid derivatives or salts thereof and antibacterial agents containing the same as the active ingredient
Inventor: YAZAKI AKIRA
IPC: C07D401/04
Filed: 1997-04-17
Abstract: PURPOSE: A novel pyridonecarboxylic acid derivative or its salt exhibiting satisfactory antibacterial activities, intestinal absorption, metabolic stability, and reduced side effects, in particular, phototoxicity and cytotoxicity, as well as an antibacterial agent containing such pyridonecarboxylic acid derivative or its salt are provided. CONSTITUTION: Pyridonecarboxylic acid derivatives or their salts are represented by the following formula (1). In the formula, R1 represents hydrogen atom, a halogen atom or a lower alkyl group, R2 represents hydrogen atom or a lower alkyl group, R3 represents substituted or unsubstituted amino group or hydroxyl group, and R4 represents hydrogen atom, a lower alkyl group, amino group or nitro group.
Patent KR-20000064959-A (KR)
Title: 페스티바이러스 감염증 및 이와 관련된 질병의 예방 및 치료방법
IPC: A61K31/53
Filed: 1998-02-23
Abstract: 본 발명은 페스티바이러스 감염증 및 이와 관련된 질병을 예방하고 치료 하는데 유용한 트리아지노인돌에 관한 것이다.
Patent KR-20000011007-A (KR)
Title: Read error recovery utilizing ecc and read channel quality indicators
Inventor: SHAVER JIMMIE RAY
IPC: H03M13/35
Filed: 1997-03-27
Abstract: PURPOSE: An apparatus for recovering from read error is provided to recover from read errors detected in a sequence of data read from a disc of a disc drive by using read channel quality indicators. Channel quality indicators determine the appropriateness of using ECC correction in combination with other corrective actions utilized in the recovery process. CONSTITUTION: Upon the detection of an uncorrected error in the retrieved data, the disk drive(10) enters a read recovery routine wherein one or more corrective actions(102,122) are applied in an effort to resolve the error. One of the channel quality indicators comprises a channel quality measurements(108,128) determined as the sum of the square of the sampled data bit error values recovered during the read operation. When the channel quality measurement is at or below a threshold value indicative that the probability of passing undetected erroneous data is at an acceptable level(110,130), error correction is applied to the data(112,138); otherwise, error correction is disallowed (118,140). Additional channel quality indicators comprise erasure pointers(132) which identify a particular set of symbols that are suspected of containing a read error.
Patent KR-19990083664-A (KR)
Title: 전자수첩저장전화번호직접다이얼링장치및그제어방법
Filed: 1999-01-08
Abstract: 1. 발명이 속한 기술분야 
     전자수첩 저장전화번호 직접Dialing장치 및 그 제어방법 
     2. 발명의 목적 
     전자수첩을 전화기에 연결하여 전화번호를 저장·검색·직접Dialing하여 통화할 수 있게 하므로서 이용상의 편리와 효율성을 증대하고자 한다. 
     3. 발명의 구성 
     전자수첩 저장전화번호 직접Dialing장치에는 Display부인 LCD액정과 Key-board부 및 마이크로프로세스부로 구성되는데, 
     기능면에서는 Keyboard의 선택에 따라 년, 월, 일, 요일, 시간 등의 시계기능, 월단위의 카렌다기능, 연산의 계산기능, 전화번호의 저장과 검색 및 출력의 전자   수첩기능, 그리고  전자수첩기능수행을 위한  비밀번호  입력·확인기능을 구비하고, LCD액정표시부는 상기의 기능에 따른 과정과 결과를 Display하며, 
     Keyboard는 영문의 인쇄체 대문자와 한글의 자음·모음 및 숫자·기호 등 그리고 각종 기능버튼의 전자수첩수단, 숫자와 각종 기능의 전자계산기수단, 카렌다기능수단, 시계기능수단 등을 구비한다. 
     4. 발명의 효과 
     본 발명의 장치를 전화기에 연결한후 저장된 전화번호를 직접 송출하여 Dialing되고 통화가 되게 하므로서 편리성과 효율성을 도모할 수 있고, 
     또한 시계, 카렌다, 계산기 등의 기능을 부가하므로서 통합기능의 유용성이 있음.
Patent KR-20000050466-A (KR)
Inventor: LEE HYE WON
IPC: F16F9/32
Filed: 1999-01-11
Abstract: PURPOSE: An impact absorbing device of shock absorber is provided to simplify the structure of a shock absorber by removing a damper, and to absorb the impact more effectively through oil pressure. CONSTITUTION: An impact absorbing device of shock absorber contains the following characteristics: to remove a damper between a rod guide (30) and a stopper (40), instead, to set up an impact absorbing part (32), in which the end of the stopper inputs and outputs, in assembly part (31) of the rod guide, where the impact absorbing part is formed between outer surface of a piston rod (20) and the assembly part of the rod guide and adjusts a gap (C) between the rod guide and an end of the stopper (41).
Patent KR-19990067984-A (KR)
IPC: H01J11/38
Filed: 1999-01-19
Abstract: 플라즈마 디스플레이 패널을 사용한 플라즈마 디스플레이장치에 관한 것으로서, 방전전류의 분포를 발광효율의 분포와 대응시키는 방향에서 종래기술에 있어서의 방전전류의 최대값의 시각 이전의 방전전류를 작게 하여 PDP의 발광효율을 향상시키고 PDP의 소비전력을 저감할 수 있는 플라즈마 디스플레이장치를 제공하기 위해, 여러개의 방전셀내에서 유전체를 거쳐서 플라즈마를 형성하는 유지 방전전극쌍이 동일 기판상에 마련된 플라즈마 디스플레이 패널을 갖는 플라즈마 디스플레이장치에 있어서, 1방전에 있어서의 방전전류의 최대값의 5%이상의 방전전류값을 갖는 기간을 1방전기간으로 했을 때, 1방전기간의 최초부터 40%까지의 기간에 있어서의 방전전류의 적분값은 그 이후의 기간에 있어서의 방전전류의 적분값보다 작은 것으로 하였다. 
     이와 같이 하는 것에 의해, PDP의 발광효율의 향상이 가능하게 되어 PDP의 소비전력을 저감할 수 있다는 효과가 얻어진다.
Patent KR-20000051419-A (KR)
Inventor: KIM SUK SOO
IPC: H01L21/8242
Filed: 1999-01-22
Abstract: PURPOSE: A method is for fabricating a trench capacitor of a semiconductor device having higher electrostatic capacity than a trench of an equal depth by forming a pillar in the trench. CONSTITUTION: A method for fabricating a trench capacitor includes the steps of: forming a hard mask by depositing and patterning a nitride film(120) and a first oxide film(130) on a semiconductor substrate(110); forming a subsidiary mask comprising a second oxide film and a sacrificial film on the semiconductor substrate revealed by the pattern of the hard mask; after removing the sacrificial film, forming a trench in the center by etching the second oxide film and the semiconductor substrate with the nitride film and the first oxide film as a mask; forming a third oxide film doped with impurity, and then forming an outer electrode(200) of the capacitor through the diffusion of the doped impurity; forming a capacitor insulation film(210) on an inner wall of the trench; and forming an inner electrode(220) of the capacitor by filling a conductive material in the trench where the capacitor insulation film is formed.
Patent KR-20000055540-A (KR)
Inventor: CHOI JIN YEONG
IPC: H01R25/00
Filed: 1999-02-08
Abstract: PURPOSE: A multi-consent plug is provided to include a plurality of auxiliary plugs which are used in many countries such as Europe, United States, and Japan in the plug so as to increase the convenience in using the plug. CONSTITUTION: A multi-consent plug includes a case(10), an auxiliary plug(20), a container member(30), an auxiliary plug connector(40) and a power plug connector(50). The case(10) is in a polygonal shape. The auxiliary plug(20) includes a body(21), a plug(22) which is made in many shapes, and an auxiliary connection member(24) which is exposed with a length shorter than the plug(22). The container member(30) includes a container room(31) for the plurality of auxiliary plugs, a fixing member(32), a guider(34), and a cover(33). The auxiliary plug connector(40) includes a connection hole(41), a fixing terminal, a tucking nose, and an elastic nose(44). The power plug connector(50) according to the present invention includes a plurality of insertion holes(51), a fixing member(42) coupled with the auxiliary plug connection member, and a plurality of connection terminals.
Patent KR-19990046317-A (KR)
IPC: C08F299/08
Filed: 1999-02-03
Abstract: 본 발명은 (메트)아크릴레이트 기들을 함유하는 오르가노폴리실록산, 이들의 제조 방법 및 방사선 경화성 코팅 물질로서 이들의 용도에 관한 것이다.
Patent KR-20000059319-A (KR)
Inventor: KANG GEON YONG
IPC: F02B31/08
Filed: 1999-03-02
Abstract: PURPOSE: A swirl induction type intake valve is provided to achieve an increased output of an engine while promoting the swirl flow and atomized fuel to reach a combustible limit. CONSTITUTION: An intake port unit in a direct injection type diesel engine having a cylinder for ignition and explosion of air and fuel, comprises a spiral first intake port(200) which allows a first airflow to be sucked into the cylinder through the first intake port to form a swirl, and which has a diameter larger than that of a standard intake valve; a second intake port(210) which allows a second airflow to be sucked into the cylinder in tangential direction with respect to the swirl through the second intake port, so as to thereby conserve momentum of the swirl within the cylinder, and a swirl control valve(300) installed inside of the second intake port and which controls the volume of the second airflow flowing into the cylinder through the second intake port.
Patent KR-20000056938-A (KR)
Inventor: LEE CHANG JIN
IPC: A61F13/00
Filed: 1999-02-27
Abstract: PURPOSE: A method for reducing the protruded scar or part of the skin is provided which reduces the degree of the protrusion of the skin without side effect through the simple pressure. CONSTITUTION: A method of reducing the protruded scar or part of the skin is characterized by being comprised of: placing a spongy or a cotton cloth(3) onto the skin for reducing pain, and helping the sweat discharged well; placing a plastic or solid material(2) onto the cotton cloth(3); and fixing with a band(1) or an elastic band around the same.
Patent KR-20000060055-A (KR)
Inventor: KIM SEON GU
IPC: H04L12/433
Filed: 1999-03-11
Abstract: PURPOSE: An asynchronous packet transmission method using the IEEE 1394 serial bus is provided for enhancing a transmission speed of a data by transferring an asynchronous packet two times at a unit interval. CONSTITUTION: It is checked whether a fair interval is started by each node(80). If a fair interval is started, each node transmits an asynchronous request or response continuously from one node to other two notes(82). It is continuously judged whether it is an asynchronous reset gap corresponding to an arbitration reset gap in a fair interval. If it is not an asynchronous reset gap(S84), each node transmits an asynchronous request or response continuously from one node to other two notes. It is judged whether the fail interval is completed. If not completed, other request or response is continuously transmitted.