baber/WOPTO huggingface dataset:
Patent KR-19990081638-A (KR)
Title: 멀티형 공조기기 및 그 제어방법
IPC: F25B13/00
Filed: 1998-04-30
Abstract: 본 발명은, 압축기와, 상기 압축기로부터의 냉매를 열교환하는 실외열교환기를 갖는 실외기와; 상기 실외열교환기 또는 상기 압축기로부터의 냉매를 열교환하는 실내열교환기를 갖는 복수의 실내기를 갖는 멀티형 공조기기 및 그 제어방법에 관한 것으로서, 상기 압축기와 상기 실외열교환기 사이에 연결되어 상기 실외열교환기로부터의 냉매를 상기 압축기로 안내하는 바이패스배관과; 상기 바이패스배관상에 설치되어 상기 복수의 실내기의 가동선택 여부에 따라 상기 바이패스배관의 전개도를 조절하는 바이패스밸브와; 상기 바이패스배관으로부터의 냉매와 상기 실내열교환기로부터의 냉매가 합류되는 상기 압축기의 유입측 배관에 설치되는 온도감지센서와; 상기 온도감지센서로부터 감지된 온도에 따라 상기 바이패스밸브를 조절하는 제어부를 포함하는 것을 특징으로 한다.  이에 의해, 압축기로 액상냉매가 유입되는 것을 방지하여 압축기의 성능저하를 막아 냉방성능을 향상시키고, 냉매의 합류시 발생하는 소음을 감소시킬 수 있다.
Patent KR-19990006458-A (KR)
Title: 웹 액세스를 위한 복수 당사자 요금부과 시스템 및 방법
IPC: H04L29/06
Filed: 1998-05-15
Abstract: 본 발명은 인터넷으로의 클라이언트 액세스에 대해 하나 이상의 참여 당사자에게 요금을 부과하는 시스템 및 방법에 관한 것으로, 요금에 대한 책임이 있는 것으로 하나 이상의 참여 당사자중 적어도 하나를 식별하고, 소정 기능에 근거하여 각 책임이 있는 참여 당사자에게 요금의 부담분을 할당하고, 부담분과 클라이언트 대역폭 사용에 근거하여 책임 있는 참여 당사자들의 각각에 대한 요금 금액을 산출하는 단계들을 포함한다.
Patent KR-19990085548-A (KR)
Title: 반도체 소자의 저항 형성방법
Filed: 1998-05-19
Abstract: 본 발명에 의한 반도체 소자의 저항 형성방법은, 절연막이 구비된 실리콘 웨이퍼 상에 폴리실리콘막을 형성하는 공정과; 상기 폴리실리콘막 상에 산화막을 형성하는 공정과; 상기 산화막 상으로 BF 2 를 이온주입하여 상기 폴리실리콘막 내부에 BF 2 를 주입하는 공정; 및 열처리 공정을 이용하여 상기 BF 2 를 확산시키는 공정으로 이루어져, 불순물 도핑 영역이 폴리실리콘막 내에만 형성되므로 상기 막질 내에서의 불순물 농도 변화를 최소화할 수 있게 되어, 안정된 저항값을 갖는 폴리실리콘 저항을 구현할 수 있게 된다.
Patent KR-19990006985-A (KR)
Title: 모자이크 영상의 유손실 압축 방법 및 프로세서
IPC: G06T9/00
Filed: 1998-06-15
Abstract: 본 발명의 방법 및 장치는 압축되고 디모자이크화된 영상의 충실도를 주어진 압축률에서 발생한 에러를 감소시킴으로써 개선하기 위한 것이다. 디모자이크화된 영상의 어떠한 위치에서든지 세가지 컬러값들 중의 전형적으로 둘은 보간되기 때문에, 대부분의 손실은 이 값들에 집중되어, 실제 또는 측정된 데이터값들의 손실이 거의 없게 된다. 이것은 유손실 압축 방식(lossy scheme)에서 원래의 측정된 값들이 최소한의 손실을 갖도록 하고 다른 보간된 값들은 임의적으로 크게 되도록 하는 데이터 보간법을 찾음으로써 성취된다.  그래서, 우선적으로 보간을 수행한 다음 압축 방식(예를 들어, JPEG)으로 인해 생기는 어떠한 손실도 용인하는 것이 아니라, 보간될 값들을 “돈 케어(Don't cares)”로 간주한 다음 측정된 값들의 손실이 최소화되도록 제공한다. 이와 같이 본 발명이 제시하는 알고리즘에서는 별도의 메모리가 필요 없으며 실행 시간의 증가가 합리적으로 된다.
Patent KR-20000003476-A (KR)
Title: Method of fabricating mosfet having polycide gate
Inventor: YEU IN SUK
IPC: H01L21/24
Filed: 1998-06-29
Abstract: PURPOSE: The method is to form a MOSFET by forming a silicide film of low resistivity by preventing the agglomeration phenomenon of silicide in the post thermal process. CONSTITUTION: The method is to stack a tungsten film or a tungsten silicide film(4) on the bottom or top of a titanium silicide film(5) when the titanium silicide film is deposited. The tungsten or tungsten silicide film provides tungsten to the titanium silicide film and prevents the titanium silicide film from agglomerating in the high temperature process structurally. Therefore the high temperature process of 900°C is possible in the post process and there is no need to limit the temperature in the post thermal process.
Patent KR-20000004032-A (KR)
Title: Television receiver with clock noise preventive function
Inventor: KIM TAE KUN
IPC: H04N5/21
Filed: 1998-06-30
Abstract: PURPOSE: A television receiver is provided to prevent frequency multiplier of an oscillating frequency which is generated from micom operation from affecting on video processing of the main integrated circuit. CONSTITUTION: The television receiver comprises: a processing unit(150) for decoding and processing a video signal; a clock noise preventive unit(550) for preventing generation of the clock noise during a signal processing of the processing unit, the clock noise preventive unit including an oscillating frequency detecting unit(551) for detecting a frequency multiplier of an oscillating frequency to prevent a clock noise generated during the signal processing of the processing unit, and a phase inverter(552) for outputting a phase inverted signal after the frequency multiplier of the oscillating frequency is detected by the oscillating frequency detecting unit, and a first quarts oscillator(553) for generating an oscillating frequency which the phase is changed by 180 degrees according to the inverting signal of the phase inverter; a control unit(450) for applying a control signal to the clock noise preventive unit.
Patent KR-20000004092-A (KR)
Title: Driving control method of magnetic crane
Inventor: SUNWOO HONG
IPC: B66C13/48
Filed: 1998-06-30
Abstract: PURPOSE: A driving control method of a magnetic crane is provided to reduce the increase of repairing expenses according to the periodical substitution of a magnetic contactor, to improve the productivity by reducing the repairing time, to use semi-permanently. CONSTITUTION: A driving control method of a magnetic crane comprises the steps of:constituting a main magnetic contactor(1) with many IGBT devices; constituting a sub-magnetic contactor(2) with many IGBT devices; orderly connecting the main IGBT driving circuit(4) composed of a light-insulating circuit(11) and a filter circuit(12) and delay and dead time occurring circuit(13) and IGBT driving circuit(14) to the IGBT devices; connecting the sub-IGBT driving circuit(5) orderly composed with a light-insulating circuit(21) and a filter circuit(22) and a IGBT driving circuit(23) to the IGBT devices.
Patent KR-19990007483-A (KR)
IPC: C08F2/34
Filed: 1998-06-30
Abstract: A method for the preparation of solid catalytic composition used for (co)polymerisation of olefins, comprises: (a) formation of solid (S1) by reacting a support in particle form and a halogen derivative represented by formula: R<1>M<1>X<1>3; (in which R<1> = hydrocarbon radical; M<1> = silicon, germanium or tin; and X<1> = halogen;) (b) reaction between (S1) and compound (C), which can graft at least one group with a cyclo-alkadienyl skeleton (L) to M<1>, at least one C atom from cyclo-alkadienyl radical being bonded to at least one H atom; the reaction giving a solid (S2); (c) reaction between (S2) and deprotonating compound (D) with formula: R<2>M<2>X<2>n; (in which R<2> = H or hydrocarbon radical; M<2> = sodium, potassium, lithium or magnesium; X<2> = halogen; and n = 0 if M<2> = lithium, sodium or potassium or n=1 if M<2> = magnesium;) the reaction giving solid (S3); and (d) reaction between (S3) and transition metal derivative with formula: R<3)<y-z)M<3>Xz; (in which R<3> = hydrocarbon; M<3> = transition metal; X = halogen; y = 3 or 4; and z = 1 - y). Also claimed are: (i) catalytic solids obtained by above method; and (ii) method for polymerisation of at least one olefin in gaseous phase.
Patent KR-20000007545-A (KR)
Title: Health food with raw salt as a basis and a process thereof
Inventor: JO HONG JA
IPC: A23L27/40
Filed: 1998-07-04
Abstract: PURPOSE: The present invention is about to pure salt removed noxious all sorts of component to human body instead of commercial contaminated salt and a process thereof. CONSTITUTION: A process for manufacturing health food with raw salt as a basis consisted of a first process for sinking precipitate to lower fraction of jailer by dipping bay salt to jailer for 24 hours and collecting floating water dissolved bay salt, a second process for collecting bay salt crystal by drying after heating the collected bay salt dissolved liquid in stainless tube installed of heater, a third process for removing all sorts of impurity contained in the bay salt crystal by baking the bay salt crystal in bio-earthenware with 700-1000°C for 24 hours, a fourth process of crushing raw salt lump dried after removing impurity after blending by adding bamboo powder, gold and silver powder containing brimstone component with a large amount in crushed raw salt, baking the mixture in bioearthen ware with 700-1000°C for 24 hours, a fifth process for powdering hard lump crystal by drying after the fourth process by crushing.
Patent KR-19990066713-A (KR)
Title: 반도체 장치
IPC: H03L7/081
Filed: 1998-07-09
Abstract: 본 발명은 데이터 출력 동작중에 급격한 전원 노이즈가 발생하는 경우에도 적절한 타이밍으로 데이터를 출력할 수 있는 타이밍 안정화 회로를 구비한 반도체 장치를 제공하는 것을 목적으로 한다. 
     반도체 장치는 외부로부터 공급되는 외부 클록 신호에 따라 데이터를 외부로 출력하는 출력 타이밍을 조정하는 타이밍 안정화 회로와, 데이터의 출력중에는 타이밍 안정화 회로의 출력 타이밍 조정 동작을 정지시키는 제어 회로를 포함한다.
Patent KR-20000009720-A (KR)
Title: Digital tdl(taped delay line) filter and binary data filtering method
Inventor: SUNWOO MYUNG HOON
IPC: H03H9/00
Filed: 1998-07-28
Abstract: PURPOSE: A high-speed digital TDL(taped delay line) filter used in a digital communication and a binary data filtering method perform a high-speed operation processing, and optimize a hardware area. CONSTITUTION: A TDL(taped delay line) filter includes an input data latch part(21) which has an output tap for shifting/latching an input data, and has many registers serially connected. A pseudo-noise(PN) code generator(22) generates PN-sequences corresponding to the output tap of the input data latch part. A correlation value calculator(23) has many multipliers which multiply an output generated from each register output tap of the input data latch part by the PN-sequence corresponding to the output, and calculate a correlation value. The multipliers are divided into many groups according to a calculation sequence, each output of each multiplier is added every group. The output register latches an output of the adder. The adder adds the correlation values previously calculated, and uses an output of the output register of the previous group latched as another input. The correlation value operation part(24) includes the adder and the output register. Thereby, an operation speed becomes improved, and the gate number is considerably reduced.
Patent KR-19980072209-A (KR)
Title: 좌변기 중간 덮개 개폐장치
Filed: 1998-07-31
Abstract: 본 발명에 따른 좌변기 중간 덮개 개폐장치는 페달을 밟음에 따라 회전축(10)을 중심으로 회전운동을 하여 중간 덮개(52)를 상부쪽으로 열고 페달(21)에서 발을 떼면 자중에 의해 중간 덮개(52)가 하부쪽으로 닫혀지며 중간 덮개(52)의 하부표면과 접착 테이프(40)에 의해 접착되는 브라켓트(9), 상기 브라켓트(9)와는 조립식으로 결합되고 회전축(10)에 고정되어 페달의 회전력을 전달하는 회전로드(8), 상기 회전로드(8)와는 회전축(6)에 의하여 일단이 연결되고 길이조절이 가능한 턴 버클(7)이 중간 부위에 설치된 연결로드(3, 4), 상기 연결로드(3, 4)와는 회전축(5)에 의하여 일단이 연결되고 다른 한쪽에 페달(21)이 일체로 성형된 페달부재(2), 및 상기 페달부재(2)와는 회전축(11)에 의하여 연결되고 지렛대의 받침대 역할을 하여 좌변기 본체 측부(50)에 접착테이프(30)에 의해 접착되는 본체 접착 부재(11)로 이루어진다. 
     상기 브라켓트(9)는 접착테이프(40)에 의해 중간 덮개(52)의 접착면(41)에 고정되며, 그 왼쪽에는 기다란 고정축(45)이 일체로 부착되며, 이 고정축(45)은 본체 고정부재(44)의 상부에 형성된 구멍과 중간 덮개(52) 및 카바(53)의 하단에 형성된 구멍에 회전가능하게 결합된다. 페달(21)을 밟으면 브라켓트(9)가 회전축(10)을 중심으로 시계방향으로 회전하여 중간 덮개(52)가 상부쪽으로 열리게 되고 이때 좌변기 본체(51)와 중간 덮개(52)는 75°∼ 80°의 각도를 유지하는 것이 바람직하다. 페달(21)은 좌변기 본체 측부(50)에 설치되므로 화장실 바닥을 청소하기가 용이하다. 연결로드(3, 4) 사이에는 길이 조절이 가능한 턴 버클(7)이 설치되어 있으므로 본 발명의 중간 덮개 개폐장치를 기존의 좌변기 종류에 관계없이 용이하게 설치할 수 있다.
Patent KR-20000010423-A (KR)
Title: Automatic manuscript supplying apparatus for scanner
Inventor: WON JIN SIK
IPC: G06K7/10
Filed: 1998-07-31
Abstract: PURPOSE: An automatic manuscript supplying apparatus for scanner is provided to fix a manuscript on a delivery board. CONSTITUTION: The apparatus comprises a paper feeding roller for feeding a manuscript supplied from a paper feeding stand, a transfer roller for transferring the manuscript fed from the paper feeding roller to scanning position, and delivery roller for delivering the scanned manuscript to a delivery board. An axis of rotation of the delivering roller is connected to a rotation stack by belt. A manuscript fix member is installed in the rotation stack and is downwardly moved to press the manuscript.
Patent KR-19990023721-A (KR)
Title: 발진 회로
IPC: H03K3/354
Filed: 1998-08-20
Abstract: 전류 인버터로 형성된 링 오실레이터에서, 교차 연결을 실현함으로써 듀티 제어성을 향상시킨다. 
     전류 공급 회로(4a 내지 4c, 6a 내지 6c)는, 그 소스가 전원과 접속하고, 그 드레인은 각각 대응하는 전류 인버터 내의 단자(A)와 접속한다.  그 게이트에는 그들이 접속하는 전류 인버터와 1 대 1로 대응하는 전류 인버터의 출력이 입력한다.
Patent KR-20000015706-A (KR)
Title: Remote starting device for vehicle
Inventor: KIM SEONG YOUNG
IPC: F02N11/08
Filed: 1998-08-31
Abstract: PURPOSE: A remote starting device for a vehicle is provided to establish a mode of single direction when a reception is unnecessary, by being able to convert between the mode of single direction and a mode of two-way with a button operation of a transmitter in the two-way remote starting device for the vehicle. CONSTITUTION: A remote starting device comprises:a switch for converting two-way/single direction(10) to transmit a signal for converting a mode of two-way and a mode of single direction; a microcomputer(20) to control a unit for transmitting(30) and a unit for receiving(40) according to the mode selected in the switch for converting two-way/single direction(10); the unit for receiving(40) fed the current at a regular cycle in the state of controlling a switch of a transmitter and of waiting a reception for receiving in the mode of two-way, and received a signal from a main module by feeding the current only at the operation of the transmitter switch without the state of waiting the reception in the mode of a single direction; and the unit for transmitting(30) to transmit the signal to the main module installed in a vehicle when operating the switch of the transmitter.
Patent KR-20000018451-A (KR)
Title: Burial compression strength test device for a round plastic pipe
Inventor: CHOE MYUNG JIN
IPC: G01N3/08
Filed: 1998-09-02
Abstract: PURPOSE: A device is provided to obtain a practical and advantageous result applicable on the spot by practicing a burial compression strength test under a condition similar to a real condition. CONSTITUTION: A device comprises: compression plates(1) mounted to be opposite to each other; action-providing plates(10) formed with a strong material and mounted on the front surfaces of the compression plates(1) and for transferring a load of the compression plates by allowing a transformation freely in the horizontal direction applied from the compression plates(1); a burial material modeling part(20) having a material similar to properties of a burial material and having a sample insertion part into which a round pipe sample(2) is inserted in the horizontal direction in the center thereof.
Patent KR-20000018790-A (KR)
Title: Multi-layer method of a semiconductor chip
Inventor: KANG GYEONG SEOK
IPC: H01L23/48
Filed: 1998-09-04
Abstract: PURPOSE: A multi-layer method is provided to multi-layer the predetermined number of semiconductor chips by transforming leads after manufacturing and testing a semiconductor chip having a type of a lead frame. CONSTITUTION: A multi-layer method comprises the steps of: (1)manufacturing a semiconductor chip; (2)testing the semiconductor chip manufactured in the step(1); (3)transforming leads of the predetermined number of the semiconductor chips among the semiconductor chips tested in the step(2); (4)connecting the good semiconductor chip tested in the step(2) with a board and laying at least one semiconductor chip having leads transformed in the step(3) on the semiconductor chip connected with the board while the leads of the semiconductor chip connected with the board correspond to the transformed leads.
Patent KR-20000020075-A (KR)
Title: Method for displaying advertisement sentence of telephone
Inventor: KIM MIN KYUN
IPC: H04M1/00
Filed: 1998-09-17
Abstract: PURPOSE: A method for displaying advertisement sentence of a telephone displays a predetermined advertisement on a display part such as LCD panel of a mobile or general telephone before a telephone communication with the counterpart person. CONSTITUTION: A method for displaying an advertisement sentence of a telephone outputs(S2) advertisement sentence data simultaneously with outputting a communication signal to a corresponding telephone, if the telephone number of a subscriber is input to the telephone switching station. If a communication signal and the advertisement sentence data are input (S3) to the controller of the telephone, the method converts(S4) the advertisement sentence data to a digital signal, and stores it to the memory part. The method outputs(S5) a bell signal generation signal to a bell signal generator through the controller, and outputs the advertisement sentence data stored in a memory to a display part. If a telephone call starts, the method stops(S7) an output of the advertisement data displayed on the display part, and removes(S7) the stored advertisement data. Thereby, the advertisement having a high effect is made.
Patent KR-19990036685-A (KR)
Title: 고체 표면으로부터의 재료 제거 방법 및 고체 기판의 기하학적제어 패턴 제조 장치
IPC: H01L21/311
Filed: 1998-09-25
Abstract: 본 발명은 고체 기판으로부터 재료를 선택적으로 제거하기 위한 촉매적인(catalytic) 방법 및 장치를 제공하는 것에 관한 것이다. 이 방법은 촉매 재료(catalyst material) 및 반응물(reactant)과 접촉하고 있는 고체 기판 영역으로부터 재료를 선택적으로 제거하기에 효과적인 조건에서 반응물의 존재 하에 고체 기판의 표면을 촉매 재료와 접촉시키는 것을 포함한다.
Patent KR-20000021518-A (KR)
Title: Ip(internet protocol) addresses of internet phone and selective calling method by station numbers
Inventor: SHIM GYU JIN
IPC: H04L12/28
Filed: 1998-09-29
Abstract: PURPOSE: IP(Internet Protocol) addresses and a selective calling method by station numbers are provided to prevent unnecessary calls, by connecting calls only for the set IP addresses and the station numbers. CONSTITUTION: IP(Internet Protocol) addresses and a selective calling method by station numbers, comprises the steps of: deciding a set-up message is inputted; deciding whether an internet mode is a general mode when a call is generated; performing former call connection process when the internet mode is the general mode, and deciding whether the internet mode is a pass mode or a protection mode when the internet mode is not the general mode; deciding whether the IP addresses are built in a pass table, when the internet mode is the pass mode, performing the former call connection process when the IP addresses are built in, and blocking connection, if not; deciding whether the IP addresses are built in a blocking table, if so, performing the former call connection process, if not, and blocking connection, when the IP addresses are built in.
Patent KR-20000025062-A (KR)
Title: Labeling method of wafer
Inventor: PARK SUN JONG
IPC: H01L21/027
Filed: 1998-10-08
Abstract: PURPOSE: A labeling method of a wafer removes a time loss of various cases occurred in a labeling process, and reduces a time of process for marking a lot number on a wafer. CONSTITUTION: In a photoresist process of a semiconductor, a labeling method deposits(100)a photoresist on a wafer, attaches a labeling part to a lateral part of a reduced projection lens, a light-exposing process of a photoresist and a labeling process are performed at the same time, a developing liquid of a photoresist is jetted(120) on the photoresist. Then, a pattern test is performed(130). If the pattern is normally formed, the photoresist process is terminated(140). Thereby, the labeling method removes a time loss of various cases occurred in a labeling process, and reduces a time of process for marking a lot number on a wafer.
Patent KR-20000025288-A (KR)
Title: Two-dimensional vector quantization apparatus and method for managing the same
Inventor: BAEK GEUN WOO
IPC: H04N7/28
Filed: 1998-10-09
Abstract: PURPOSE: A two-dimensional vector quantization apparatus is provided to perform a data splitting after, at splitting code word data, obtaining a representative value and then eliminating an edge damage. CONSTITUTION: In a two-dimensional vector quantization apparatus, a random value generating part(11) produces a random value of two-dimensional data, and a splitting part(12) splits output data of the random value generating part to make the number of the data be multiplier-times. A data detecting part(13) detects whether a value differential between a sample produced in the splitting part and a previous sample exists. A data equalizing part(14) equalizes output data of the data detecting part. A comparison part(15) adjusts a data production frequency of the splitting part by the data number made at the data equalizing part. A density calculating part(16) calculates whether a result of the splitted data is uniformly scattered according a piece number determination in the data detecting part, and commands the re-splitting to a non scatted portion. A code book arrangement part(17) arranges produced code word if the data number from the data equalizing part satisfied a magnitude of a required code book, and outputs the code book.
Patent KR-20000026033-A (KR)
Title: Method for editing guidance voice in telecommunication system
Inventor: LEE JAE SEONG
IPC: H04L12/00
Filed: 1998-10-16
Abstract: PURPOSE: A method for editing a guidance voice in a telecommunication system is to remove the same frequency component with DTMF(Dual Tone Multifrequency) from frequency component of the guidance voice and thus prevent the ARS(Audio Response Service) system or VMS(Voice Mail Service) system from being erroneously operated. CONSTITUTION: A voice guidance editing system for providing a guidance voice to the ARS system or VMS system generates a guidance voice. The guidance voice is input to a FET(Fast Fourier Transforming) part(11) through a 10msec window. The FFT part partitions the guidance voice signal into frequency components. The partitioned frequency components are input to a DTMF component removing part(12). The DTMF component removing part selectively removes the same frequency with the DTMF signal from the frequency components. The DTMF component-removed frequency is input to a reverse FFT part(13). The reverse FET part transforms the frequency into the voice signal and edits the transformed guidance voice to provide the ARS system or the VRS system with the transformed guidance voice.
Patent KR-20000026279-A (KR)
Title: Method and apparatus for recycling waste heat from boiler
Inventor: MIN BYUNG WOOK
IPC: F24H1/00
Filed: 1998-10-20
Abstract: PURPOSE: A method is provided to effectively recycle waste heat without difficulty in exhausting combustion gas in a gas flue by securing a closed area to recycle the waste heat. CONSTITUTION: Waste heat is recycled by the steps of; arranging a closed area(20) outward from the center of a gas flue(10), a flow path(30) and an exhaust path(40) in order; absorbing heat by convecting indoor air if the closed area is heated as waste heat passes the gas flue; transferring a part of the waste heat to the flow path; and directly transferring a part of the waste heat passing the exhaust path to the flow path. The waste heat is absorbed into the closed area or remained through the repetitive convection of the partial waste heat to continuously transfer the heat to the flow path and to directly transfer the waste heat passing the exhaust path to the flow path.
Patent KR-20000032759-A (KR)
Title: Method of controlling variable-structured cell-buffering-queue for dynamic congestion control and controller thereof
Inventor: LEE KYU HO
IPC: H04L12/801
Filed: 1998-11-17
Abstract: PURPOSE: A controlling method of variable-structured cell-buffering-queue for dynamic congestion control is provided to perform more intelligent and various congestion control dynamically in a high speed data transmission network by controlling the congestion control with variable structure according to the transmission to a cell and the dynamic state variation. CONSTITUTION: Threshold values of the occurrence and the cancellation of congestion are variably determined by the state of data transmission, the dynamic variation of communication network condition and a variable control request from a network management controller. The occurrence of congestion and the cancellation of congestion are decided based on the number of current input cells input in the area of the determined threshold values of the occurrence and the cancellation of congestion. A bit for displaying the occurrence or the cancellation of congestion is set or reset by the decided result. While cell-buffering-queue controllers(310) having various hysteresis characteristics are applied, cell-buffering-queue controllers proper to the characteristic of an outer control request are applied alternately.