baber/WOPTO huggingface dataset:
Patent KR-20020051602-A (KR)
Title: Tap hole surface digging device of blast furnace
Inventor: HUH GEUN U
IPC: C21B7/12
Filed: 2000-12-23
Abstract: PURPOSE: A device for digging the surface of a tap hole in a blast furnace is provided to easily repair digging surface by decreasing excessive digging and digging hit, and improve working efficiency by securing safety of working. CONSTITUTION: The device for digging the surface of a tap hole in a blast furnace comprises a body(1) on the cylindrical front outer circumference of which sawteeth(5) are formed, and along the circumference of which a plurality of slit shaped body space parts(14) are formed toward a width direction of the body(1); a rod(3) which is coupled to a center bit(2) that is projectingly inserted into the front surface along the inner center of the body(1), and which is connected to a tapping socket; a rod inner hole which is formed at the center of the rod(3) along a length direction of the rod(3) and connected to an external cooling mist supplying source; and mist jet orifices which are connected to the rod inner hole, a plurality of which are radially formed along the circumference of the body(1), and which are formed so that mist is jetted onto the side of the sawteeth(5), wherein the device further comprises digging spaces(6) which are formed in the sawteeth(5) formed on the body(1) to discharge refractory materials of the tap hole surface; and a center jet orifice which is directly connected to the rod inner hole at the front of the rod(3) to jet cooling mist toward the center bit(2).
Patent KR-20020052856-A (KR)
Title: Device for protecting overflow of alkali tank of cleaning line
Inventor: LEE JUN SIK
IPC: B21B45/02
Filed: 2000-12-26
Abstract: PURPOSE: An apparatus for preventing overflow of wash liquid tank of a degreasing line is provided to prevent wash liquid from overflowing the wash liquid tank even when all of the wash liquid is drained by varying volume of the wash liquid tank. CONSTITUTION: The apparatus for preventing overflow of wash liquid tank of a degreasing line comprises a volume variation part comprising a cover member(20) which is ascended or descended along the inner surface of the wash liquid tank(10) with the cover member closely adhered onto the inner surface of the wash liquid tank, a vertical member(31) vertically installed along the side surface of the wash liquid tank at the front of one side of a frame to which the wash liquid tank is fixed, a support member(32) horizontally extended from the upper end of the vertical member(31) to the upper part of the cover member(20), guide rolls(33) rotationally installed at the support member(32), chains(34) connected to the upper part of the cover member(20) with the chains being put on the guide rolls(33), sprocket wheels(35) rotationally installed at the upper part of the vertical member(31) and engaged with the chains, a weight(36) connected to the front of the chains that face downward with being put on the sprocket wheels, and a driving motor(37) fixed to the vertical member(31) and connected to a rotation shaft of the sprocket wheels(35) so as to rotate the sprocket wheels(35); and a volume sensing part comprising a guide pipe(40) having a certain length which is installed at the inner side of the upper end of the cover member(20), and the lower part of which is opened, a floating body vertically movably installed in the guide pipe, a bar which is vertically installed on the upper part of the floating body so that the bar is projected through the cover member, a sensing fragment installed at the front of the bar, and upper and lower limit sensing sensors which are installed at upper and lower ends of the vertical bar vertically installed on the upper part of the cover member so as to sense the sensing fragment.
Patent KR-20010062784-A (KR)
Inventor: NABATA NORIKANE
IPC: B29C43/18
Filed: 2000-12-27
Abstract: PURPOSE: A method for sealing a semiconductor chip is provided to seal the semiconductor chip with resin easily and at a high yield by using a releasing film and to enhance sealing efficiency of the sealing resin by reduction or removal of a releasing material from the sealing resin as well as reduce a package size. CONSTITUTION: The resin is formed by interposing a releasing film(1) between the surface to be sealed of a semiconductor chip wherein a terminal(22) or an electrode is arranged and a die(4). The resin is injected and cured, and then the tip end of the terminal(22) or electrode is exposed over the sealing resin surface in contact with the releasing film(1). In the method, a composite film of a base film(11) and an auxiliary layer(12) having a lower compression elastic modulus than the film(11) is used as the releasing film, and the layer(12) is used in face to face with a side to be sealed of the chip.
Patent KR-20020055924-A (KR)
Title: Wordline bootstrap circuit
Inventor: KIM DAE HAN
IPC: G11C8/08
Filed: 2000-12-29
Abstract: PURPOSE: A word line bootstrap circuit is provided to prevent the generation of parasitic load by switching voltage for precharge and improve a precharge and generate reliable pumping voltage by switching voltage applied to a gate electrode of a high voltage triple well nMOS transistor. CONSTITUTION: A word line bootstrap circuit includes a precharge portion(310). The precharge portion(310) is formed with the first switching element(MNN30), the second switching element, and the first capacitor(Cp30). The first switching element(MNN30) is used as a low voltage depletion nMOS transistor. The second switching element is used as a high voltage triple well nMOS transistor. The first capacitor(Cp30) is used as a pumping capacitor for boosting voltage of a gate electrode of the second switching element(TMN30). A gate oxide breakdown phenomenon is prevented by using the second switching element(TMN30) as the high voltage triple well nMOS transistor.
Patent KR-20020058763-A (KR)
Title: Method of wireless internet direct connection using WIND
Inventor: KIM YEONG DAE
IPC: G06F17/00
Filed: 2000-12-30
Abstract: PURPOSE: A method for directly connecting to the wireless Internet using a wireless Internet number domain is provided to use diversity wireless Internet connection method in a wireless communication environment by making out a new wireless Internet domain with a previously stored number or a specific symbol system without changing an IP address, a domain name and a representative telephone number. CONSTITUTION: A call requested by a mobile terminal is transferred to a mobile exchanger/visitor location register(S110). In case that the call includes a special character added number, the call is transferred to a packet data gateway node/link part in order to judge whether the call is the number mapping to the previously stored IP address or the wireless Internet number domain. In case of the wireless Internet number domain(S140), the WINDS(Wireless Internet Number Domain System) is started(S150). If the call is recognized as an URL condensed button call mapping to the IP address, a wireless Internet connection service using a DNS(Domain Name System) is stared by linking the call to the address corresponding to the URL mapped by the DNS and the call is connecting to the requested Internet service(S180).
Patent KR-20010040233-A (KR)
IPC: E04F15/10
Filed: 1999-04-14
Abstract: 본 발명은, 우레탄계 수지적층체를 제공한다.   즉 본 발명은, 연속된 강화섬유를 한 방향으로 배열하고, 이 강화섬유의 용적비율이 50%가 되도록 열가소성수지를 함침한 시트형상프리프레그(prepreg)의 적어도 2매를, 섬유방향이 직교하도록 적층하거나, 또는 다시 그 한쪽면 또는 양면에 부직포를 적층한 섬유강화수지층에 대해서, 우레탄계 수지층을 적층한, 치수안정성, 시공성에 뛰어난 우레탄계수지적층체를 제공한다.
Patent KR-20010023533-A (KR)
Title: 피부과용 조성물
IPC: A61K8/891
Filed: 1998-08-28
Abstract: 본 발명은 나트륨 폴리아크릴레이트, 하나 이상의 폴리올 및 화학식 1의 하나 이상의 글리콜 화합물의 수성 혼합물을 포함하는 제1 미생물 증식 억제제(a)와 화학식 II의 모노알킬 글리세린 에테르 또는 이의 에스테르를 하나 이상 포함하는 제2 미생물 억제제(b)를 함유하는 미생물 증식 억제제의 효과적인 배합물을 함유함을 특징으로 하는, 과민성 증상과 피부 불내성 증상의 발병을 방지하는 피부과용 및/또는 화장품 조성물에 관한 것이다. 
     화학식 1 
     R 1 -O-(R 2 -O) n R 3   
     화학식 II 
     R 4 OCH 2 CH(OH)CH 2 OR 5   
     위의 화학식 1 및 화학식 II에서, 
     R 1 및 R 3 은 독립적으로 H이거나 직쇄 또는 측쇄 C 1 -C 5 알킬 그룹이고, 
     R 2 는 직쇄 또는 측쇄 C 1 -C 5 알킬렌 그룹이며, 
     n은 1 내지 400,000이고, 
     R 4 는 탄소수 6 내지 24의 직쇄 또는 측쇄 알킬 그룹이며, 
     R 5 는 H이거나 탄소수 8 내지 24의 직쇄 또는 측쇄 알카노일 그룹이다. 
     본 발명은 당해 조성물의 국소 적용 및 이의 약제로서의 용도, 특히 과민성 증상과 피부 불내성 증상, 건성 증상, 아토피 증상, 좌창 증상, 피부 노화 증상을 치료거나 양성 여름 일광 발진 증상을 예방하는 것에 관한 것이다.
Patent KR-20010052067-A (KR)
IPC: B65D41/28
Filed: 1999-07-14
Abstract: packing of sterile liquids. SUBSTANCE: package has plastic bottle, stopper driven into pour-out hole of bottle for removing and member which can be hooked up. This member is protected from accidental engagement by ring wall projecting upwards from edge of cover member over periphery. Wall of cover member is provided with holes to prevent accumulation of liquid at sterilization. EFFECT: reduced to minimum accidental engagement of hook-up member and getting of contaminants into package. 8 cl, 10 dwg
Patent KR-20010030623-A (KR)
IPC: E01C1/00
Filed: 1998-09-17
Abstract: 본 발명은 도로, 거리, 개방공간 등의 위의 공기중에 부유하는 이온화기체 및/또는 입자의 양을 제어하는 방법에 관한 것이다. 본 발명의 목적은, 도로, 거리, 개방공간의 최상층과 상기 이온화기체 및/또는 입자와의 사이에 전기장을 형성시킴으로써 달성된다. 전기장을 제어함으로써 이온화기체 및/또는 입자의 양을 제어할 수 있게 된다. 본 발명은 또한, 터널벽과 같은, 도로, 거리, 개방공간 등의 주변의 표면과의 사이에 전기장을 형성하는 방법을 개시하고 있다. 상기 전기장은, 적어도 전기전도성 표면의 최상층을 형성하고, 이를 어스 또는 전기적 전압원의 한 전극에 접속함으로써 형성된다.
Patent KR-20010024365-A (KR)
Title: 스티렌계 수지 조성물 및 그 제조 방법
IPC: C08F279/02
Filed: 1999-07-30
Abstract: 본 발명은 광택, 강성 및 면 충격 강도가 우수한 스티렌계 수지 조성물을 제공하는 것으로, 디엔계 단량체의 단독 중합체(b1) 또는 스티렌 구조 단위를 중량 기준으로 15% 이하의 비율로 가지는 스티렌계 단량체와 디엔계 단량체의 공중합체(b2), 및 스티렌계 구조 단위를 중량 기준으로 20∼50%의 비율로 가지는 스티렌계 단량체와 디엔계 단량체의 공중합체(b3)와, 스티렌계 단량체(a1)와； (메타)아크릴산 알킬에스테르(a2)의 혼합 용액을, 가동 부분이 없는 복수의 혼합 요소가 내부에 고정되어 있는 관상 반응기를 조립하여 이루어지는 연속 괴상 중합 라인 내에서 중합한다.
Patent KR-20010031326-A (KR)
Title: 의료용 결합장치
IPC: A61M39/00
Filed: 1998-10-20
Abstract: 본 발명은 환자의 혈류를 외부도관이나 유동원에 외부적으로 연결시키는 의료용 장치에 관한 것으로, 이는 제 1밀봉면(9,9')에 의해 둘러싸여진 적어도 하나의 제 1개구부(8,8')를 갖추되, 제거가능한 보호부재(24)에 의해 보호되도록 된 본체(1)와; 결합부재에 대해 제거가능한 보호체(27)에 의해 보호되도록 배치된 적어도 하나의 제 2개구부(12,12')를 갖춘 결합부재(10);를 구비하되, 상기 결합부재 (10)가 보호부재(24)와 보호체를 동시에 제거한 상태하의 본체(1)에 결합되어 상기 밀봉면들 사이에 기밀결합될 수 있으며, 상기 본체(1)는 각각 보호부재와 결합부재에 대해 양끝으로 개방된 안내부(7)를 형성하는 지지부재(6)를 구비하는 한편, 본 발명은 상기 결합장치용 결합유니트에 관한 것이다.
Patent KR-20010031553-A (KR)
Title: 엔진 블로 바이 가스 처리 방법
IPC: F02M25/06
Filed: 1999-02-22
Abstract: 하나 이상의 연소 챔버(28)와, 상기 하나 이상의 연소 챔버(28)로 압축 가스내에 혼입된 계량된 연료를 공급하며 압축 가스를 공급하는 2중 유체 연료 분사 시스템(26)을 구비하는 내연 기관 내의 블로 바이 가스 처리 방법 및 시스템이 제공되며, 상기 방법은 분사 시스템에 의해 하나 이상의 연소 챔버로 이송하기 위해 엔진 내부로부터 블로 바이 가스를 끌어내도록 압축기의 흡입 진공을 사용하는 단계를 포함한다.
Patent KR-20010052363-A (KR)
Title: 공기조화기용 공기필터
IPC: B01D46/10
Filed: 1999-03-31
Abstract: 본 발명은 필터여과재 만의 세정이나 교환을 가능하게 해서 자원절약화, 쓰레기 감량화, 및 비용절감을 도모하고, 또 본체상자의 정압에 수반하는 팽창변형에 수반하는 공기누설을 방지할 수 있는 공기조화기용 공기필터를 제공한다. 
     공기조화기용 공기필터는 정면측에 공기유입구를, 배면측에 공기유출구를 각각 개설해서 된 프라스틱제의 본체상자와, 이 본체상자 내의 공기유입구와, 공기유출구와의 사이에 갈짓자 형으로 또한 출입가능하게 수납되는 복수매의 필터본체와를 구비한다. 
     필터본체는 4각형상의 필터틀 내에 벨로스 형상의 필터여과재를 끼워넣어서된다. 
     필터틀의 상단면 및 하단면의 각각에  슬라이드홈을 전후방향 전장에 걸쳐서 형성하는 한편, 상기한 본체상자의 천정판 및 저면판의 각각의 내면에, 상기한 필터틀의 상단면 및 하단면의 각각의 양측을 덮는 형의 좌우의 가드레일과, 이 좌우의 가드레일간에 평행으로 배치되고, 상기한 슬라이드홈에 슬라이드가 자유롭게 끼워맞추어지는 안내레일과를 각각 갈짓자 형으로 돌출설치한다. 
     좌우의 가드레일의 각 내측에는 걸어맞춤 돌기편을 수평으로 돌출설치하는 한편, 각 필터본체의 필터틀의 상단부 및 하단부의 각각의 양측면에 상기한 걸어맞춤 돌기편에 슬라이드가 자유롭게 걸어맞추어지는 걸어맞춤홈을 각각 전후방향으로 전장에 걸쳐서 형성한다.
Patent KR-20010070949-A (KR)
Title: 브래그 격자를 형성하기 위한 빔 사이의 제어된 위상지연
IPC: G02B6/02
Filed: 1999-05-28
Abstract: 적어도 2개의 빔이 감광성 도파관(38)상에 격자구조를 형성하기 위한 간섭패턴(39)을 형성하며, 상기 간섭패턴(39)은 빔의 상대위상을 변조시킴으로써 제어된다. 변조는 전자 광학, 자기 광학 또는 음향 광학 위상 변조기(34) 또는 웨지, 웨이브플레이트 또는 위상 마스크를 포함하는 기계 구동식 위상 변조기(34)에 의해 이루어질 수 있다. 후자의 경우, 상기 위상 마스크는 빔을 형성하기 위한 빔스플리터(33)로도 작용할 수 있다. 도파관(38)을 이동시킴과 동시에 상대 위상변환을 제어함으로써 확장된 격자가 형성될 수 있으며, 이는 첩, 아포다이즈 및 임의의 격자 프로파일을 포함할 수 있다. 광전자 피드백 루프를 통해 잡음이 감소될 수 있다. 일실시예에서, 상대위상이 편광된 빔에 작용하는 전자광학 변조기(32)를 통해 변조될 수 있으며, 이는 편광 빔스플리터(33)에 의해 2개의 빔으로 분할되고, 하나의 빔이 반파 플레이트(34)를 통과하여 간섭패턴(39)을 형성하게 된다.
Patent KR-20010052454-A (KR)
Title: 재조합 인간 인터페론 베타-1ａ(ｉｆｎ-베타-1ａ) 제제
IPC: A61K38/21
Filed: 1998-05-29
Abstract: 본 발명은 pH가 약 7.2인 완충액, 재조합 인터페론 베타 및 인간 혈청 알부민 15 ㎎/㎖를 포함하는 액체 조성물과, 이 조성물을 포함하는 비경구 투여용 키트를 제공한다.
Patent KR-20010083044-A (KR)
IPC: C03B37/012
Filed: 1999-05-21
Abstract: The present invention relates to a new class of optical waveguides, in which waveguiding along one or more core regions is obtained through the application of the Photonic Bandgap (PBG) effect. <??>The invention further relates to optimised two-dimensional lattice structures capable of providing complete PBGs which reflect light incident from air or vacuum. Such structures may be used as cladding structures in optical fibres where light is confined and thereby guided in a hollow core region. <??>In addition, the present invention relates to designs for ultra low-loss PBG waveguiding structures, which are easy to manufacture. <??>Finally, the present invention relates to a new fabrication technique which allows easy manufacturing of preforms for photonic crystal fibres with large void filling fractions, as well as a high flexibility in the design of the cladding and core structures. <IMAGE>
Patent KR-20020061758-A (KR)
Title: Selection method of Transport Format Combination for Medium Access Control in mobile communication system
Inventor: LEE SEUNG JUN
IPC: H04B7/005
Filed: 2001-01-17
Abstract: PURPOSE: A method for selecting transmission format combination for medium access control in a mobile telecommunication system is provided to efficiently select the optimum TFC by considering buffer occupancy of logic channels mapped by the logic channels or the transmission channels. CONSTITUTION: Buffer occupancy data of each logic channel transmitted from an upper layer to a medium access control layer are checked and logic channels having data to be transmitted are selected(S601,S602). It is confirmed whether a plurality of logic channels mapped in the selected logic channel exist and then the logic channel having the highest priority is selected(S603,S604). The selected logic channels are aligned according to the priority and buffer occupancy data(S605). All TFC(Transmission Format Combination) sets are set, which are within a TFCS supporting the maximum transmission power of the current user equipment, so that the TFC including one TFC is selected(S606-S614).
Patent KR-20010076413-A (KR)
Title: An absorbent article containing skin protective components
Inventor: HISANAKA TAKAYUKI
IPC: A61F5/44
Filed: 2001-01-20
Abstract: PURPOSE: To eliminate the need and troubles on evess in an absorptive article- wearing person who has heretofore an uncomfortable feel with sweatiness and rashes and who applies lotion and cream to the skin in order to protect the skin. CONSTITUTION: This absorptive article is provided with a layer 50 containing a skin protective component and a holding layer 51 for protecting the layer before the skin of the wearing person needs the skin protective component in a segment in contact with the wearing person's skin. When high humidity and high temperature are attained, the holding layer 15 dissolves and the skin protective component appears, thereby forming an oily film on the wearing person's skin.
Patent KR-20020062528-A (KR)
Title: Method for managing members on internet and apparatus thereof
Inventor: KIM TAEK JIN
IPC: G06F17/00
Filed: 2001-01-22
Abstract: PURPOSE: An apparatus and a method for managing the members of an advertisement site through the Internet are provided for the first group member to receive a reward for the recommendation of the advertisement site by registering the second group member as the ID of a recommender, and to prevent the multi-account use of the second group member. CONSTITUTION: A user registers at the advertisement site as the first group member by entering a user ID, password, name, and account number(110). The other user registers at the advertisement site as the second group member by entering a user ID, password, name, account number, and ID of the recommender among the first group member(120). The second group member downloads an advertising program of the advertisement site(131) and shows an advertisement. The advertisement site calculates the advertisement viewing time of the first and second group members(133). The advertisement site converts the advertisement viewing time into the reward money(135) and refunds the reward of the first group member to the second group member, who watches the advertisement, according to the priority of the first group member at the fixed rate(141). The reward is accumulated to the account of the second group member(143).
Patent KR-20010078287-A (KR)
Title: System, process, apparatus and program for controlling special lot carrying in semiconductor carrying facility
Inventor: NAKAJIMA HIROSHI
IPC: B65G1/137
Filed: 2001-02-02
Abstract: PURPOSE: To provide a system, a method, a device, and a recording medium that can automatically carry lots of wafers for special use between storage lockers and can achieve faster processing while suppressing an increase in recording capacity. CONSTITUTION: There are provided: storage lockers for storing lots for special use that includes wafers not being processed in a semiconductor manufacturing apparatus and lots including wafers processed in the semiconductor manufacturing apparatus, and a carrying host computer for controlling the carrying of the lots. After the lots for special use are stored in one of the storage lockers, the storing of the lots from the storage lockers is reported, and the carrying host computer activates a timer. Of the lots stored in the storage lockers, regarding the lots for special use, the processing of the lots are considered to be completed upon timeout of the tier, the lots for special use determine a subsequent carrying process according to the carrying pattern for the lots for special use that are stored in a memory, and an instruction for carrying in the subsequent step is sent to the storage locker.
Patent KR-20020065027-A (KR)
Title: Semi-penetrating color lcd with a two-layer color filter structure
Inventor: PARK HONG SIK
IPC: G02F1/1335
Filed: 2001-02-05
Abstract: PURPOSE: A semi-transmissive color LCD(Liquid Crystal display) in the dual-layered color filter structure is provided to locate a semi-transmissive plate between color filter layers in the dual-layered structure for obtaining the bright characteristics in the reflection mode while obtaining superior color characteristics in the transmission mode. CONSTITUTION: A semi-transmissive color LCD in the dual-layered color filter structure includes a first color filter layer(11a) formed of a color filter pattern, a black matrix for discriminating red, green and blue cells for blocking light, and color filters for transmitting light, and a semi-transmissive plate(12) mounted at a lower end of the first color filter layer for reflecting light in the reflection mode while transmitting the light in the transmission mode, wherein in the reflection mode, the light passing through the first color filter layer is reflected against the semi-transmission plate to pass the first color filter layer again.
Patent KR-20020065960-A (KR)
Title: Control System of Slot Machine
Inventor: PARK IL NAM
IPC: G07F17/34
Filed: 2001-02-08
Abstract: PURPOSE: A slot machine control system is provided to enable a user to produce various kinds of game situations by using two pairs of reels, thus maximizing an interest of a game. CONSTITUTION: The slot machine control system consists of a pair of front first reels, a pair of lower second reels, a cycle LED(48), a display(46) displaying the number of input coins, the number of left coins, and the number of batting chance, a plurality of lamps(70,71,72), a plurality of setting keys(41,42,43), a key matrix(40), a display driving part(38), a cycle LED driving part(36), a lamp driving part(64), a plurality of reel motors(51,52,53,54,55,56), a first zero point detecting part(32) for controlling the positioning of the reel motors, a plurality of gift discharge motors(66,67,68,69), a second zero point detecting part(60) for controlling the operation of the gift discharge motors, an input coin detector(28), a coin calculator(26), a coin return device driving part(24), a sound processor(22), a system setting part(20), a control part(10), a ROM(14) and a RAM(16), a battery(18), a clock generator(17), a reset part(19), a latch and decoder(12), and a power source(30).
Patent KR-20020066419-A (KR)
Title: Method for establishing timing of transmission frame on wide-band wireless telecommunication system
Inventor: LEE JONG WON
IPC: H04L12/28
Filed: 2001-02-10
Abstract: PURPOSE: A method for setting up a transmission frame timing in a W-CDMA system is provided to set up the transmission frame timing between an HS-DSCH(High Speed-Down Link CHannel) and a control channel, such as a PCDCH(Power Control Dedicated CHannel), an SCCCH(Shared Channel Control CHannel), etc., in consideration of the efficiency of a channelization code and the size of the buffer of a receiving unit, in embodying an HSDPA(High Speed Downlink Packet Access) for the transmission of high speed mass packet data. CONSTITUTION: A user sets up a PCDCH related to an uplink with the transmission frame timing and offset value of a CPICH(Common PIlot CHannel)(401). Then the user checks whether the data to be transmitted to an HS-DSCH exist(402). In case that the data to be transmitted to the HS-DSCH exist, the user sets up the transmission frame timing of an SCCCH in consideration of processing time, k frames earlier than the HS-DSCH(403). After k frames, the user sets up the transmission frame timing of the HS-DSCH(404). Then the user judges whether all the data have been transmitted to the HS-DSCH(405). In case that all the data have been transmitted, the user terminates the timing setup procedure for the SCCCH and the HS-DSCH.
Patent KR-20020071268-A (KR)
Title: Equipment and method for preventing unlawful use of VOD services
Inventor: CHO U SANG
IPC: G11B20/10
Filed: 2001-03-05
Abstract: PURPOSE: A system and a method for preventing video on demand service from being illegally used are provided to allow only an authenticated user to use video on demand service of the Internet. CONSTITUTION: A system for preventing video on demand service from being illegally used includes a web server connection unit(100), a user authentication unit(200), a control device(300), a media server connection unit(400), a database(500), an input device(600), and a display device(700). The web server connection unit is connected with a web server through a network cable to transmit/receive user authentication data to/from the web server. The user authentication unit confirms the user authentication data to verify a user. The control device opens or closes a data communication path of a media server according to service request data of the authenticated user to interface video on demand service data. The media server connection unit transmits/receives data for the service using a video-on-demand service provider's internal media server and a private Internet protocol. The database stores user information data authenticated by the web server and user information data authenticated by the user authentication unit.
Patent KR-20020073647-A (KR)
Title: Wear-resistant sliding bearing for heavy load
Inventor: LEE WOO CHUN
IPC: F16C33/04
Filed: 2001-03-15
Abstract: PURPOSE: An abrasion resistant sliding bearing is provided to achieve improved load-carrying capacity by improving lubrication, abrasion resistance and surface fatigue resistance of an inner sintered bearing layer of bearing. CONSTITUTION: A sliding bearing comprises a steel-back metal; a sintered metal layer(5) bonded to the steel-back metal, and which consists of 10 to 30 weight percent of copper, 0.1 to 5.0 weight percent of nickel, 0.1 to 8.0 weight percent of chrome and remainder of iron; and a dry lubrication agent contained in the sintered metal layer. The dry lubrication agent is one of 0.1 to 6.5 weight percent of graphite or 0.1 to 7.0 weight percent of molybdenum disulfide. The sintered metal layer has a ring type groove(9) which is formed by cutting away a portion of the sintered metal layer so as to store grease in the ring type groove.