baber/WOPTO huggingface dataset:
Patent KR-20020050982-A (KR)
Title: Refractory Mortar Containing Carbon
Inventor: HONG GI GON
IPC: C04B35/66
Filed: 2000-12-22
Abstract: PURPOSE: A carbon-contained refractory mortar comprising magnesia, amorphous carbon, inorganic antioxidant(B2O3), and oil is provided, which prevents oxidation of the rear and joint of carbon-contained refractory brick and is easily disjoined after use. CONSTITUTION: The carbon-contained refractory mortar comprises the components of: refractory materials comprising magnesia powder(>=95% purity) and amorphous carbon in a ratio of 10:90 - 70:30, wherein magnesia and amorphous carbon are less than 1mm in size; 3-20wt.%(based on extrapolation) of one or more of inorganic antioxidants such as B2O3 oxides and B2O3 salts; 10-40wt.%(based on extrapolation) of petroleum oils such as kerosene and heavy oil.
Patent KR-20020053962-A (KR)
Title: Information Transmission Method between Subscribers of ISDN
Inventor: CHOI BONG GEUN
IPC: H04L12/12
Filed: 2000-12-26
Abstract: PURPOSE: A method for transmitting information between ISDN subscribers is provided to transmit a UUI(User-to-User Information) by including the UUI in a Q.931 message involved in a call set-up or a call release step by using a UUS(User-to-User Signaling service), one of supplementary services of an ISDN. CONSTITUTION: When a call processing message is received(S21), it is determined whether a UUI is included in the call processing message(S22). If the UUI is not included in the call processing message, a call is processed by a general call processing procedure regardless of a UUS(S27). If the UUI is included in the call processing message, it is determined whether a subscriber who has transmitted the UUI has been subscribed in the UUS(S23). If the subscriber has not been subscribed for the UUS, the UUS request is disregarded and only the procedure related to the call processing is performed(S28).
Patent KR-20020054118-A (KR)
Inventor: HAN SANG HO
IPC: C23C2/06
Filed: 2000-12-27
Abstract: PURPOSE: A method for manufacturing bake hardenable galvannealed steel sheets with high formability, excellent bake-hardening capacity of higher than 3Kgf/mm¬2 and tensile strength of higher than 40 kg/mm¬2 is provided. CONSTITUTION: In a manufacture method of bake hardenable galvannealed steel sheets through hot rolling, hot coiling, cold rolling and annealing, the present invention is characterized in that the bake hardenable galvannealed steel sheets comprises C 0.0015 to 0.0025 wt.%, Mn 0.8 to 1.5 wt.%, P 0.08 to 0.12 wt.%, S 0.006 wt.% or less, N 0.003 wt.% or less, sol-Al 0.06 wt.% or less, Ti 0.010 to 0.016 wt.%, Nb 0.007 to 0.013 wt.%, Cr 0.02 wt.% or less, a balance of Fe and other inevitable impurities where N, Ti and C satisfy following inequality:(4/14xN wt%)<=Ti<=(48/14xN wt%)+(48/12xC wt%x0.6).
Patent KR-20020054773-A (KR)
Title: Manufacturing jig of cylinder block for vehicles
Inventor: MIN SEUNG UN
IPC: B25B11/02
Filed: 2000-12-28
Abstract: PURPOSE: A cylinder block machining jig is provided to reduce the production cost of a cylinder block by minimize the number of machining processes of the cylinder block during boring operation of the cylinder block. CONSTITUTION: A cylinder block machining jig comprises a mounting frame(1), first and second fixing portions(3,5), a sliding portion(7), an angle adjusting pin(17), and a gauge portion(19). The mounting frame(1) is provided for mounting a pre-machined cylinder block. The first and second fixing portions(3,5) are provided for setting the pre-machined mounting block on the mounting frame(1). The sliding portion(7) is mounting on either side of the mounting frame(1), and forwardly or rearward moved by the operation of an operator. The sliding portion(7) has an oblique surface on one end thereof. The angle adjusting pin(17) engages the oblique surface of the sliding portion(7). When the slider portion(7) is forwardly or rearward moved, the angle adjusting pin(17) is upwardly or downward moved synchronously according to change in angle of the oblique surface, so that the mounting angle of the cylinder block is adjusted. The gauge portion(19) is mounted on one side of the mounting frame(1). The gauge portion(11) is used to measure the machined size of the cylinder block mounted on mounting frame(1).
Patent KR-20020056443-A (KR)
Inventor: MIN BYEONG GUK
IPC: H01J11/50
Filed: 2000-12-29
Abstract: PURPOSE: A plasma display panel is provided to improve luminance by using zigzag barrier ribs. CONSTITUTION: A plasma display panel comprises a lower plate(76), address electrodes(82x) and barrier ribs(74). The barrier ribs(74) are formed in parallel to the address electrodes(82x) on the lower plate(76). Phosphor is coated over the barrier ribs(74) and the lower plate(76). The barrier ribs(74) are formed as zigzag and surround a cell so that pixel cells are connected by narrow channels to facilitate gas exhaustion and gas injection. The narrow channels made a higher discharge starting voltage than wide channels so as to prevent cross-talk in direction of the barrier ribs(74). The zigzag barrier ribs(74) increase the coated area of the phosphor and reflectivity of the barrier ribs(74).
Patent KR-20020058437-A (KR)
Title: Source driver in tft-lcd
Inventor: KIM GYEONG MYEON
IPC: G09G3/36
Filed: 2000-12-30
Abstract: PURPOSE: A source driver of a thin film transistor LCD is provided to reduce a switching current of a digital buffer by operating the digital buffer only while data are inputted. CONSTITUTION: An XOR gate(101) performs an XOR operation 1 bit digital data of a corresponding channel among digital data(D00-D01-D50-D57) of 8 bits and 6 channels and a data polar signal(DATAPOL1 or DATAPOL2) and stores 1 bit data. A NOR gate(102) transfers or intercepts 1 bit digital data inputted through the XOR gate(101) according to a control signal for a data interception. The control signal for a data interception includes a clock disable signal(CLK-DIS). An output of the XOR gate(101) is transferred through the NOR gate(102) according the control signal for a data interception. An inverter(103) inverts and provides an output signal of the NOR gate(102) to 2-line latch.
Patent KR-20020058542-A (KR)
Title: button of controller in washing machine
Inventor: KIM YEONG SU
IPC: D06F39/00
Filed: 2000-12-30
Abstract: PURPOSE: A button device of a manipulation part of a washing machine is provided to sufficiently assure an interval between an LED(Light Emitting Diode) display element and a push button without increasing the size of a circuit board. CONSTITUTION: A button device of a manipulation part of a washing machine includes a rectangular pressing lever(50) having a rotation fixing part(51) at an end to be fixed to a side of a rear surface of a control panel(10) rotatably, and a free end provided with a contacting/pressing part(59), wherein the rotation fixing part rotates in the pressing direction by pressing a push button(12) and the contacting/pressing part contacts a tact switch(33) to press a contact point, and an elastic recovering element(55) for applying force to the pressing lever in a direction to separate the contacting/pressing part from the tact switch when the pressing of the push button is stopped.
Patent KR-20010022652-A (KR)
Title: 식물에서 국소적인 유전자변형을 유발하기 위한 혼성 이중나선올리고뉴클레오티드의 용도
IPC: C12N5/10
Filed: 1998-08-05
Abstract: 본 발명은 식물세포에서 위치 특이적 유전자변형을 도입하는 25내지 30개 염기쌍의 이중나선 올리고뉴클레오티드의 용도와 관계한다.  올리고뉴클레오티드는 기계적(바이오리스틱)시스템에 의해 또는 식물 원형질체의 에렉트로포레이션에 의해 전달할 수 있다.  본 발명의 특정구체예에서, 본 발명은 산(acid) 인비타아제, UDP-글루코스 피로포스포리라제, 폴리페놀 옥시다제, O-메틸 트랜스퍼라제, 신나밀 알코올 탈수효소, etr-1또는 이의 상동체, ACC 합성효소, ACC 옥시다제를 인코드한 유전자상의 변형과 이런 유전자에서 격리된 점돌연변이를 갖는 식물에 관계한다. 
     서열목록
Patent KR-20010024049-A (KR)
IPC: H04B7/005
Filed: 1998-09-16
Abstract: A radio connection is adapted to an environment changing over the connection in a cellular radio system where the radio traffic between the base station and the mobile stations is arranged on a multiple access principle, according to a given frame structure (402). For a given radio connection between the transmitting device and the receiving device, there is reserved a given data transmission capacity in said frame structure. The receiving device measures the connection quality (103) during the connection, and on the basis of the measured connection quality, the size of the data transmission capacity (104, 110) reserved for said connection in said frame structure is changed. <IMAGE>
Patent KR-20010031501-A (KR)
Title: 5-알파 환원효소 활성을 조절하는 방법 및 조성물
IPC: C07D311/62
Filed: 1998-10-30
Abstract: 5α-환원효소를 억제하는 화합물이 제공되어 있다.  이 화합물은 전립선 암, 유방암, 비만, 피부 질환 및 독두증을 치료하는데 사용된다.
Patent KR-20010031758-A (KR)
IPC: A01N43/76
Filed: 1998-11-02
Abstract: 본 발명은 각각의 경우에 유리된 형태 또는 염 형태의 화학식 I의 화합물 및 경우에 따라 이의 가능한 토오토머; 이들 화합물 및 이의 토오토머를 제조하고 적용하는 방법; 활성 성분이 이들 화합물 및 이의 토오토머로부터 선택되는 살충제; 및 이들 조성물의 제조방법 및 적용방법, 유리된 형태 또는 염형태의 이들 화합물 및 경우에 따라 이의 토오토머를 제조하기 위한, 유리 형태 또는 염형태의 중간체에 관한 것이다: 
     화학식 I 
     
       
     
     상기식에서, 
     X 및 Y는 서로 독립적으로 염소 또는 불소이고; 
     Z는 O 또는 S이다.
Patent KR-20010032019-A (KR)
Title: 균일한 사이즈 도포를 위한 방법 및 조성물
IPC: C09D105/00
Filed: 1998-11-03
Abstract: 헤테로폴리사카라이드를 함유하는 유리섬유 사이징 조성물은 롤 피복기를 통해 고온 섬유에 균일하게 도포된다.
Patent KR-20010032359-A (KR)
IPC: F02B75/18
Filed: 1998-10-16
Abstract: A cylinder head for an internal combustion engine with at least one pump/nozzle unit, including at least one bearing block with a bearing half for a camshaft and with a bearing half for a rocker arm shaft for at least one rocker arm for actuating the pump/nozzle unit, a first separate lubricant supply duct provided in the cylinder head, and a second lubricant supply duct provided in the bearing block, a first end of the second lubricant supply duct being connected to the first lubricant supply duct and a second end of the second lubricant supply duct ending open in a bearing face of the bearing half for the rocker arm shaft.
Patent KR-20010040599-A (KR)
Title: 압전식 액츄에이터
IPC: H01L41/083
Filed: 1999-11-05
Abstract: 본 발명은 압전식 액츄에이터에 관한 것으로서, 특히 차량의 내연기관에 부착된 제어 밸브나 분사 밸브를 작동시키기 위한 압전식 액츄에이터에 관한 것이다.  본 발명의 액츄에이터는, 특히 다층 적층물의 형태로 압전식 액츄에이터 본체(1)를 포함하며, 여기서 다층 적층물은 압전 재료로 이루어진 샌드위치 층들 및 이 층들 사이에 배치되어 전극으로서 사용되는 금속 또는 전기 전도층으로 구성된다.  액츄에이터 본체(1)는 분리벽(8)에 의해 상부 공간(11)과 하부 공간(10)으로 분할되는 중간 공간(10, 11)을 유지하면서 모듈벽(2)에 의해 둘러싸여 있다.  상기 분리벽은 횡으로 배치된 상태로 축방향으로 운동할 수 있으며 액츄에이터 헤드(3)에 안착한다.  본 발명의 압전식 액츄에이터는, 액츄에이터 본체(1)를 냉각하기 위한 냉각 공기 유동(공기 유입, 공입 유출)이 상부 공간(11) 및/또는 하부 공간(10)에서 관류하는 것을 특징으로 한다.
Patent KR-20010041757-A (KR)
Title: 소시지 케이스화 장치용 트위스터 장치
IPC: A22C11/10
Filed: 2000-01-10
Abstract: 소시지 케이스화 장치용 트위스터 장치는 중앙 보어를 가지는 제 1 하우징 부재(12)를 가진다.  회전가능한 링(22)은 하우징의 중앙 보어와 동심의 중앙 보어(26)를 가진다.  회전가능한 슬리브(24)는 링에 설치되며 링의 중앙 보어를 형성하며 링과 회전가능하다.  제 2 하우징 부재(14)는 제 1 하우징 부재에 고정되며 슬리브를 수용하는 중앙 보어를 가진다.  베어링 부재는 슬리브 주위로 연장되며 제 2 하우징 부재의 표면과 맞물리도록 반지름방향으로 연장된다.  링은 중앙 보어로부터 외측으로 연장되는 원형 디스크(28)를 포함하며, 외측 주변 엣지를 가진다.  복수의 반지름 방향으로 이격된 베인(32A)은 외측 주변 엣지로부터 외측으로 연장되는 디스크상에 있다.  베인은 링이 회전될 때 장치의 냉각을 강화하기 위하여 제 2 하우징 부재 및 베어링으로부터 공간이 이격된다.
Patent KR-20010042653-A (KR)
Title: 가스 배리어성 필름
IPC: C08J7/048
Filed: 1999-04-13
Abstract: 폴리(메트)아크릴산 및 폴리(메트)아크릴산 부분중화물로 이루어지는 군에서 선택된 1 종 이상의 폴리(메트)아크릴산계 폴리머와 폴리알코올류의 혼합물로 이루어지는 성형물층의 표면에 금속화합물을 포함하는 층을 도공하여 이루어지는 가스 배리어성 필름 및 상기 가스 배리어성 필름의 어느 한 표면에 플라스틱 필름을 적층한 가스 배리어성 적층 필름으로서, 간편한 방법으로 얻어지는 가스 배리어성이 향상된 가스 배리어성 필름이 제공된다.
Patent KR-20010096549-A (KR)
Title: Semiconductor device and manufacturing method thereof
Inventor: TERASHIMA TOMOHIDE
IPC: H01L23/525
Filed: 2001-01-04
Abstract: PURPOSE: To provide a semiconductor device and a method of manufacturing it wherein the number of manufacturing processes can be reduced and necessary masking materials can be reduced with respect to the semiconductor device having a fuse. CONSTITUTION: For an oxide film 21c as an upper part insulating layer, when forming an opening part for a contact wiring 22c, the oxide film 21c including a fuse region 26 is removed. Further, the contact wiring 22c that connects wiring layers 23b, 23c above and below the oxide film 21c electrically and the wiring laver 23c that should be located in the upper part of the oxide film 21c are formed as one upper part conducting layer 25 simultaneously.
Patent KR-20020066127-A (KR)
Title: System for monitoring alignment and leveling of objects with relation to fiber drawing
Inventor: LEE DONG HUI
IPC: G02B6/02
Filed: 2001-02-09
Abstract: PURPOSE: A system for monitoring a horizontality and a verticality of an object related to optical fiber drawing is provided to manufacture an optical fiber with a high quality by preventing a short of optical fiber in advance and by accurately monitoring the horizontality and the verticality of an optical drawing tower or drawing equipments. CONSTITUTION: In a system for monitoring a horizontality and a verticality of an object(30), an optical drawing process providing with drawing equipments of an optical fiber drawing tower includes steps of: an object(30) related to the optical drawing process, an identifying tag(31) attached to the object(30) and a monitoring sensor(32) for monitoring the horizontality and the verticality of the object(30) and supplying the monitored signal to a controller(33). The identifying tag(31) is provided with divided regions divided by in a circumferential direction with respect to a center thereof and identifies a different status in response to the divided regions, respectively. The controller(33) is placed in such a way that the monitoring sensor(32) monitors the center of the identifying tag(31). Therefore, the system is capable of grasping the situation of the horizontality and the verticality of the object in response to a predetermined identifying table set in the controller(33).
Patent KR-20010085570-A (KR)
Title: Platform screen door device and emergence exit panel thereof
Inventor: NAGAYAMA TETSUJI
IPC: E01F1/00
Filed: 2001-02-24
Abstract: PURPOSE: A platform screen door system is provided to be easily openable without performing complicated operation such as pushing an emergency exit panel while continuously operating a lock release and automatically lockable after evacuation. CONSTITUTION: An emergency door panel(12) is opened and closed in turning, and a platform screen door system(10) locks the emergency door panel in closing state at ordinary time. The emergency door panel and the platform screen door system are featured by having lock pins arranged in the emergency door panel and switched to a lock position and a release position for releasing a lock; compression springs for always energizing the lock pins to the lock side; an operation lever for switching the lock pins to the release position against energizing force by the compression springs; and a shutter mechanism for holding the lock pins switched to the release position in the release position. The platform screen door system keeps the original shape even in position changes of a platform(4) or ceiling structure(8b) by not collecting stress at a connecting part of the screen door.
Patent KR-20020070012-A (KR)
Title: The far infra red ray emissive cup and method for it's preparation.
Inventor: RA CHANG HO
IPC: C04B33/24
Filed: 2001-02-28
Abstract: PURPOSE: A ceramic cup(bowl) with a far infrared emitting body on its bottom is provided to make sharp tastes of a drink be mild and soft. CONSTITUTION: The manufacturing method of ceramic cup is as follows: mixing 20wt.% of clay, 60wt.% of kaolin, 10wt.% of feldspar, and 10wt.% of silica; adding water to make a dough; forming and drying the dough at 45-55 deg.C for 24hrs.; sintering it at 1200-1300deg.C for 8hrs.; cooling it to 200deg.C in the furnace and to room temperature in the air; glazing it with a liquid, as a binder, including MnO2, Fe2O3, Cr2O3, CuO and CoO; inserting a far infrared emitting body(102) into a groove formed on the bottom of a cup(101); drying it at 45-55deg.C for 24hrs.; sintering it at 1176-1220deg.C. The far infrared emitting body is produced by the following steps of: mixing raw materials such as 80-85wt.% of Fe2O3, 9-15wt.% of MnO2, 8-10wt.% of ZnO, 2-5wt.% of Al2O3, 1-3wt.% of SiO2, 3-3.5wt.% of CuO, 2.5-5wt.% of CaO, 2.5-4wt.% of CoO, 1.5-2wt.% of MoO3 and 0.2-0.5wt.% of Y2O3; spray drying the mixture to form granules(<=1micrometer); forming it under pressure of 1200-1500kg/cm¬2; heating it to 1300deg.C in inert gas atmosphere and holding it at 1300deg.C for 4hrs. in N2 atmosphere; furnace cooling it to 200deg.C in inert gas atmosphere and then air cooling.
Patent KR-20020071071-A (KR)
Title: An Electric light for emergency and hanger of this
Inventor: SEO SU DEOK
IPC: F21V19/00
Filed: 2001-03-02
Abstract: PURPOSE: An emergency lamp and a rack thereof are provided to maintain the state of lights-out when the lamp hung to the rack by dividing batteries within the lamp. CONSTITUTION: A lamp rack(10) is comprised of a fixing unit(13), for example, a bolt, glue, both-sided tape, etc., a dividing plate(11) for dividing batteries within a lamp(50), and a hanging stick(12) for hanging all sort of properties. An external case(51) of the lamp(50) accommodates batteries within the lamp(50). A guide groove(53) is provided on an end of the external case(51) so as to insert the dividing plate(11) formed on the lamp rack(10). The end of the external case(51) where the guide groove(53) is provided, is located on the connection of the batteries. A luminous sticker is adhered to an opposite side of the guide groove(53) on the external case(51).
Patent KR-20010069310-A (KR)
Inventor: JO MIN JE
IPC: E06B5/11
Filed: 2001-03-06
Abstract: PURPOSE: A security window and door for preventing burglar is provided to promptly inform through an alarm or a pager when a conductor mounted on the window or door is broken by robbers or strangers. CONSTITUTION: A security window and door for preventing burglar includes a conductor adsorbed or coated on a window or a door, a terminal(2), a CPU(Central Processing Unit)(3), a shock sensing device. The conductor is less than 1mm in width and thickness and has a length unrestricted. The conductor is connected to the terminal in an interval of 10-150cm from the window or door. The terminal sends currents from the CPU to the conductor and sends the currents returning from the conductor to the CPU to inform the normal flow of currents. Terminals are connected to an indication lamp, various terminals, an alarm, a pager, or a battery if the terminal connected to the CPU is out of order. A device and program for operating and controlling the above components are mounted. The shock sensing device senses shock when robbers or strangers breaks the connection of the terminals and informs an owner of danger.
Patent KR-20020073022-A (KR)
Inventor: SON OK TAE
IPC: A23G3/00
Filed: 2001-03-14
Abstract: PURPOSE: Provided are a candy containing green tea crushed powder and its preparing method, therefore prepared candy contains abundant active ingredients of green tea and taste and flavor peculiar to green tea. CONSTITUTION: The candy containing green tea crushed powder characteristically consists of 0.1-8 wt.5 of green tea crushed powder, 72-95 wt.% of saccharide selected from the group consisting of maltose, sugar, lactose, maltodextrin and fructose, and 5-20 wt.5 of purified water.
Patent KR-20020075107-A (KR)
Title: A method for improving quality of broadcasting signal through mobile communication system
Inventor: KIM CHEOL U
IPC: H04B7/02
Filed: 2001-03-23
Abstract: PURPOSE: A method for improving the quality of broadcast signals through a mobile system is provided to enhance the receiving quality of broadcast signals by applying time delay diversity or multi-channel diversity in providing broadcast services using mobile network. CONSTITUTION: A base station receives broadcast data from a broadcasting server through the medium of a mobile data network or the Internet(S401). Sequentially transmitting the received broadcast data packets to a mobile terminal through a broadcasting channel(S402), the base station reckons time after the transmission of each packet and judges whether a preset delay time elapsed(S403). In case that it is judged that the preset delay time elapsed, the base station retransmits the broadcast data packet of the content identical to a previously transmitted packet(S404). The mobile terminal, receiving the broadcast data packets, compares a previously received data packet with the broadcast data packet of the delayed and received identical content(S411,S412) and selectively uses a packet having no error or less errors(S413).
Patent KR-20010098964-A (KR)
IPC: G02C7/02
Filed: 2001-04-28
Abstract: The method of production is carried out includes: The preparation of a predetermined distribution of spherical and astigmatic faults in the field of vision of the spectacles wearer, depending on a desired difference between the first value and a second value measured respectively at a remote reference point (13) and a near reference point (15) of the lens. Preparing a desired dioptrical desired-effect of the spectacle lens (1). Determining a shape of a first lens surface (5) of the spectacle lens (1) depending on the desired dioptrical desired effect of the spectacle lens. Determining a shape of a second lens surface (7) of the spectacle lens (1). Finishing the spectacle lens corresp. to the determined shape of the lens surface (7) facing away from the eye (3) of the spectacles wearer. Also the determined shape of the lens surface (5) facing the eye (3) of the spectacle wearer. So that the shape of the second lens surface (7) is determined in such a manner, that the finished spectacle lens has the predetermined fault distribution in the field of vision.
Patent KR-20020084513-A (KR)
Title: Relay broadcasting system and method for sports
Inventor: KIM CHONG WOO
IPC: G06F17/00
Filed: 2001-05-02
Abstract: PURPOSE: A sports relay system and a method thereof are provided to reduce a load being pressed to a server, transmit data in a narrow band width smoothly, and check an accuracy of information transmission for a user. CONSTITUTION: A relay server(1) supplies information with respect to a sports game to a user who is connected through a network in real time. A database server(3) stores information related to a sports game. An offerer terminal is provided for up-loading game information in the relay server(1) in real time. A user terminal is provided for making a user be connected to the relay server(1). The relay server(1), the database server(3), and the offerer terminal are mounted. A team information database(21) stores information with respect to many teams and players of each team. A game information database(23) stores game information of each team supplied from the offerer terminal in real time. A tool database(25) includes an offerer tool mounted in the offerer terminal for inputting game information and a user tool mounted in the user terminal for receiving game information.
Patent KR-20020094433-A (KR)
Title: A exchange with wireless lan
Inventor: PARK SANG JO
IPC: H04L12/28
Filed: 2001-06-11
Abstract: PURPOSE: A wireless LAN(Local Area Network) simple exchange device is provided to connect to a terminal by wireless without a wired office line connection by connecting to the Internet by wireless. CONSTITUTION: A wireless LAN exchange unit(100) connects to a plurality of PSTNs(Public Switched Telephone Networks)/ISDNs(Integrated Services Digital Networks) and a LAN(160), and sets a necessary communication path between a transmission terminal and a reception terminal through switching. An AP(Access Point) unit(110) connects to the wireless LAN exchange unit(100) by wire, and connects to a plurality of terminals and PSTNs/ISDNs connected to the wireless LAN exchange unit(100). A wireless terminal unit(120) connects to the AP unit(110) by wireless, connects to a general telephone by wire, and connects a communication path of the wireless LAN exchange unit(100) and the general phone. A wireless line unit(130) connects to the AP unit(110) by wireless, connects to the PSTN/ISDN(35) by wire, and connects a communication path of the wireless LAN exchange unit(100) and the PSTN/ISDN(35). An IP(Internet Protocol) terminal unit(140) connects to the AP unit(110) by wireless, connects a communication path with the wireless LAN exchange unit(100), uses all services of the wireless LAN exchange unit(100), and connects a PC(150).