baber/WOPTO huggingface dataset:
Patent KR-19990087092-A (KR)
Title: 바다에 선박을 정박시키기 위한 시스템
IPC: B63B25/08
Filed: 1996-08-07
Abstract: 특히 오일 및 가스 활동과 관련한 작업을 위해, 관련 선박(10, 40)에 양호하게는 그 뱃머리부에 정박 수단(11)이 장비되며, 바다에서 선박의 로딩 또는 언로딩을 한다.  해저에는 앵커 장치(3)와, 선박(10) 상의 정박 장치(11)에 상기 앵커 장치(3)를 연결하도록 된 적어도 하나의 앵커링 라인(6, 8)이 포함된다.  양호하게는 흡입 앵커, 중력 앵커 또는 파일 앵커의 형태인 영구 앵커 장치에는 앵커링 라인(6)을 위한 선회 수단이 구비되며, 부표(7)는 상기 앵커링 라인(6, 8)의 중간부에 부착된다.  또한, 로딩과 언로딩 작업 위해서 스위벨 수단(5)과 선박(10)에 연결된 호스(9)가 있다.
Patent KR-20000011043-A (KR)
Title: Plastic envelope assembly air freshener dispenser device
Inventor: MARTIN JOHN
IPC: A61L9/12
Filed: 1997-05-14
Abstract: PURPOSE: An air freshener dispenser device is provided in the form of a plastic envelope containing a volatile air freshener medium. The envelope is constructed of two elongated plastic membrane laminates which are sealed along a peripheral margin that frames a reservoir enclosure between the opposing membrane laminate inner surfaces. CONSTITUTION: The air freshener dispenser device comprises:(a) two elongated plastic membrane laminates sealed along a peripheral margin framing a reservoir enclosure between the opposing membrane laminate inner surfaces; (b) a volatile air freshener medium contained in the reservoir; (c) a vapor-impermeable thin film for preventing volatilization of the volatile air freshener medium through the permeable membranes from the reservoir; and (d) a semi-rigid strip having a dimension approximating the area of the reservoir enclosure and at least one structural aperture permitting free access of air between the membrane laminate range surfaces.
Patent KR-20000011143-A (KR)
Title: Hot-melt adhesives for disposable items and articles made therefrom
Inventor: DIEHL CHARLES F
IPC: A61L15/58
Filed: 1997-05-20
Abstract: PURPOSE: A hot-melt adhesive composition is provided to include a high molecular weight linear styrene-isoprene-styrene block copolymer or a high molecular weight linear styrene-butadiene-styrene copolymer while not including a residual die block. CONSTITUTION: Hot-melt adhesive compositions containing high molecular weight linear styrene-isoprene-styrene block copolymers or high molecular weight linear styrene-butadiene-styrene copolymers, having little or no residual die block, and articles made therefrom. The resulting adhesive composition may include solid tackifying and liquid tackifying resins.
Patent KR-20000016796-A (KR)
Title: Underwater treatments
Inventor: GOBLE NIGEL MARK
IPC: A61B18/14
Filed: 1997-06-17
Abstract: PURPOSE: An electrosurgical instrument is provided to treat the tissue in the presence of an electrically conductive fluid medium. CONSTITUTION: An electrosurgical instrument comprises a hand piece, and instrument shaft(10), and an electrode assembly(12) at one end of the shaft. The electrode assembly(12) includes a tissue treatment electrode(14) exposed at the most end of the instrument from the tissue treatment electrode(14) by means of an insulation member(16) and has a fluid contact surface(18a) neighboringly spaced from an exposed end(14a) of the tissue treatment electrode. The exposed end(14a) of the tissue treatment electrode passed along the insulation member(16) and extends laterally through a cut out (16a) provided in the insulation member (16) at the distal end portion of the instrument. The fluid contact surface overlies the insulation member(16) in the region of the cut out(16) and is spaced from the tissue treatment electrode (14) in such a manner as to define, in use, a conductive fluid path that completes an electrical circuit between the tissue treatment electrode and the return electrode (18).
Patent KR-20000022406-A (KR)
Title: Method and apparatus for contactless treatment of a semiconductor substrate in wafer form
Inventor: GRANNEMAN ERNST HENDRIK AUGUST
IPC: H01L21/677
Filed: 1997-07-08
Abstract: PURPOSE: An apparatus for contactless treatment of a semiconductor substrate in wafer form can allow one of the gas streams to function as process gas and particularly supply process gas from one side section at a relatively low temperature to the semiconductor substrate, whilst the other side of the semiconductor substrate is subjected to a relatively high temperature originating from the opposite side section. CONSTITUTION: Such a treatment comprises heating the semiconductor substrate. To this end it is proposed to position the semiconductor substrate between two side sections of an enclosing apparatus and to keep the semiconductor substrate floating between said two side sections by introducing gas streams. It has been found that it is particularly effective to heat the substrate by means of at least one of said side sections. The apparatus establishes the space between side sections and semiconductor substrate as 1.0mm. Either a first side section or a second side section is heated to more than 200 De,C tempture.
Patent KR-19990078524-A (KR)
Title: 가설흙막이벽용철골버팀대를영구구조물의일부로사용하는구조물구축방법
IPC: E02D29/045
Filed: 1999-01-13
Abstract: 본 발명은 건축물의 지하 구조물 구축방법에 관한 것으로, 구체적으로 지하에 구조물을 설치하기 위한 터파기를 위하여 토압 등 외력을 지탱하는 철골 버팀대(steel strut)를 영구 구조물의 일부로 사용하는 방법에 관한 것이다. 
     건축물이 설치될 곳의 경계선에 H형강(21)을 박고, 건축물의 기둥이 설치될 곳에 센터 파일(3, center pile)을 박고, 제1단계 굴토작업을 실시하고, 상기 H형강(21)과 콘크리트옹벽(22)을 전단정착연결수단(23)으로 결합하여 일체화한 CRS옹벽(2)을 시공하고, 상기 CRS옹벽(2)에 고정판(6, embedded)으로 영구 구조물의 일부로 사용될 거더(4)를 설치하여 상기 센터 파일(3)에 거치시키고, 제2단계 굴토작업을 실시하여 상기 제1단계 이후의 단계를 반복하여 건축물의 최하부까지 굴착하고, 그리고 상기 센터 파일(3)과 상기 거더(4)를 내화피복 또는 콘크리트 타설하고 슬래브를 설치하는 단계로 이루어진다. 
     본 발명으로 건축물의 지하 구조물용 터파기를 위하여 임시로 설치하는 가설 버팀대를 영구 시설물의 일부로 활용하는 방법을 제공하여, 가설 버팀대를 영구 구조물로 사용함으로서 가설 버팀대의 설치와 해체작업을 줄일 수 있게 되었다.
Patent KR-20000051657-A (KR)
Inventor: JANG SEONG GWEON
IPC: E02B11/00
Filed: 1999-01-25
Abstract: PURPOSE: A winch of water gate is provided to make up for the weak points of currently developed winch of water gate making workers extremely tired as requiring to move the lever back and forth repeatedly and taking loss of time to winch the water gate because of small working range of the lever, thereby offering low efficiency of winch. CONSTITUTION: A winch of water gate comprises: connection means being installed to the first shaft to transmit power as rotating a worm gear by a worm wheel; power regulation means combined with one-way clutch making the clutch assay of the second shaft possible to rotate to one direction to help connection means to transmit power; operating means being combined with the third shaft and decreasing turning effect as a worker manually operates the water gate through the first driving gear of the power regulation means; breaking means being connected to the power regulation means by a chain, thereby offering friction to prevent the water gate from urgently falling down; the second deceleration means comprising gears connected to the shaft 2-1,4,5,6,7 to decrease turning effect coming from the operating means and the power regulation means; the first-going up and down means operating the first rack gear being installed to the seventh shaft to up and down the water gate. To transmit power, push the clutch of the power regulation means by the push button of connection means and decrease the revolution of a driven shaft going in gear with a driving gear by rotating the handle of operating means to rotate the second shaft. The turning effect transmitted from the second shaft gets decreased step by step upto the fifth step and is transmitted to the first-going up and down means, thereby making the bar of the rack gear connected to the water gate up or down.
Patent KR-20000055206-A (KR)
Inventor: JEON SI MOON
IPC: D06F35/00
Filed: 1999-02-04
Abstract: PURPOSE: A laundry machine having slant washer tub is provided to achieve a convenient receipt of laundry and an efficient washing action while arranging the washer tub to have a slant during washing and rising operations and upon opening of a laundry machine door. CONSTITUTION: A laundry machine comprises hangers(70,70a) arranged for aiding a washer tub(60) to be hung at an interior of an outer case(51), and a spring compression member for compressing springs(76,76a) installed at ends of the hangers(70,70a), respectively, to serve as a damper, the spring compression member compressing springs(76,76a) so as to permit the washer tub(60) to be slant at a predetermined angle. The spring compression member is constituted by an electromagnet(74a) installed at upper and lower portions of the spring(76a) and a power device(80) for supplying power to the electromagnet(74a).
Patent KR-20000055457-A (KR)
Inventor: LEE SANG HUN
IPC: H01J29/76
Filed: 1999-02-06
Abstract: PURPOSE: A deflection yoke for cathode ray tube provides an electromagnetic wave shielding unit for shielding an electromagnetic wave generated from the deflection yoke. CONSTITUTION: A deflection yoke(20) for cathode ray tube comprises a horizontal deflection coil(11) and a vertical deflection coil(12) which are disposed at an outer portion of a funnel(15) of the cathode ray tube to deflect electron beam, an electromagnetic wave shielding unit(27) which is disposed between the funnel and the horizontal deflection coil and formed of a funnel type multi layered film, and a grounding unit(28) which is connected with the shielding unit. The funnel type multi layered film has a first film layer formed of an insulating film and a second film layer formed of a conductive film. The grounding unit is extended from the insulating film to serve as a conductor.
Patent KR-19990077416-A (KR)
Title: 비월주사방식영상을위한색차신호모양정보추출방법및장치
IPC: G06T9/00
Filed: 1999-02-10
Abstract: 본 발명은 동영상 압축 부호화/복호화 또는 영상 조작에 사용되는 비월주사 영상을 위한 색차신호 모양정보 추출방법 및 장치에 관한 것으로, 특히 휘도 모양정보로부터 색차 모양정보를 추출함에 있어서, 임의의 휘도 모양정보를 갖는 비월 주사방식의 영상에서 동일한 필드 내의 4개의 휘도 모양 정보를 이용하여 색차 모양 정보를 추출하는 것을 특징으로 하는 비월주사 영상을 위한 색차신호 모양정보 추출방법 및 장치에 관한 것이다.  본 발명의 방법 및 장치에 의하면 종래의 비월주사 방식의 영상 특성을 고려하지 않은 색차 모양정보 추출방법에서 발생하는 색차정보와 휘도정보의 불일치 문제를 해결하여 주관적 화질을 향상시킬 수 있다.
Patent KR-20000056306-A (KR)
Inventor: JEONG YONG HWAN
IPC: G21C3/07
Filed: 1999-02-19
Abstract: PURPOSE: A method for manufacturing the zirconium alloy composition is provided to obtain very excellent corrosion-resistance by composing Nb, Cu, O, and Zr. CONSTITUTION: A method comprises the steps of: melting metal having a composition of Nb, Cu, O, and Zr; performing a beta-heat process for ten to thirty minutes at temperatures of 1000 to 1100°C; carrying out the hot rolling with a rolling pressure of 50 to 80% after preheating for 10 to 30 minutes at temperatures of 670 to 690°C; performing the heat-processing for one to three hours at temperatures of 670 to 690°C; performing a first cold rolling at a rolling pressure of 40 to 60%; and carrying out the beta-heat process for 10 to 30 minutes at temperatures of 1000 to 1100°C.
Patent KR-20000056403-A (KR)
Inventor: LEE JEONG HWAN
IPC: G06F17/40
Filed: 1999-02-20
Abstract: PURPOSE: A method for storing periodic lower data is provided to optimize relation database size for storing transmission data of BSC(base station controller) in BSM(base station manager). CONSTITUTION: A method for storing periodic lower data comprises the steps of;making relation database construction of the respective BTS(base transceiver station) unit(s10);collecting and transmitting the periodic data of BSS(base station subsystem)(s20);storing data of BSM and checking the validity(s30);and storing relation of transmission data(s40).
Patent KR-20000060121-A (KR)
Inventor: KIM IK HAN
IPC: H04B7/26
Filed: 1999-03-12
Abstract: PURPOSE: A method for adjusting a timing synchronization between a radio port(RP) and a radio interface unit(RIU) in a wireless local loop(WLL) is provided to perform basic operations of the WLL to stably maintain the WLL, by maintaining the timing synchronization. CONSTITUTION: A demodulator of a radio port(RP) performs timing arrangements. A channel card controller of the RP performs timing arrangements. The channel card controller transmits synchronous data to a mobile station through the demodulator. The mobile station maintains a pilot signal of the RP. The mobile station is synchronized with the RP maintaining the pilot signal.
Patent KR-20000061442-A (KR)
Inventor: CHOE EUN KWANG
IPC: G06F1/20
Filed: 1999-03-26
Abstract: PURPOSE: A system for cooling a computer by using water and the air is provided to keep the inner temperature of a computer housing and to cool effectively a CPU in the computer by improving a form of a heat sink. CONSTITUTION: A pump(2) having a motor(1) is connected to a cooling fan(3). A hexagon type heat sink(6) has a suction hole(4) connected to the pump(2) and an entrance of the heat sink(6). The pump(2) is connected to a warm water pipe(7). The hexagon type heat sink(6) is connected to a cooling water pipe(8). The pump(2) and the hexagon type heat sink(6) are connected to a heat absorption pipe(10) installed in the upper of a central processing unit(9). The cooling system has an air inhalation hole(4-1) and an air exhaust hole(4-2). The hexagon type heat sink(6) has an upper plate(6-1) and a bottom plate(6-2) of the heat exhaust plate. A connector(6-3) connects the upper plate(6-1) to the bottom plate(6-2). A vent(12) is located in the hexagon type heat sink(6).
Patent KR-20000065472-A (KR)
Title: Underwater cleaning apparatus and prefabricated type cleaning ship
Inventor: LEE JAE DONG
IPC: B63B35/32
Filed: 1999-04-03
Abstract: PURPOSE: A prefabricated type ship for cleaning underwater bottom is provided to collect and dispose the pollutant in the bottom of underwater. CONSTITUTION: A rake is formed by welding ten steel bars of 100mm of length and 10mm of diameter at interval of 100mm with a steel bar of 900mm of length and 10mm of diameter on a level plate and welding the ten 10mm bars by standing by being separated 100mm from a suction port. A roller rolling left and right and forward and rearward is installed in a protruded unit. A triangular box is placed by turning over. A pipe of 80mm of bore and 400mm of length is cut in 45 angular degrees at the point of 300mm. The divided two pipes are combined perpendicular to each other and welded with each other. The pipes are inserted to holes and welded while upper ends face a triangular point. Thereby, a water pump for a cleaning ship is prepared.
Patent KR-20000065967-A (KR)
Inventor: JIN TAE SEONG
IPC: H01L21/68
Filed: 1999-04-12
Abstract: PURPOSE: A device for dumping wafer is provided to settle distorting of a flat zone by forming a fixing guide(17) in L shape to fix a lower part of wafer cassette firmly. CONSTITUTION: A device for dumping wafer includes a supporting stand(15) in which a wafer cassette loading wafer is placed, a fixing guide(17) tying up a lower part of wafer cassette in both direction, and a roller(19) for aligning a flat zone of the wafer between the fixing guides. Because the fixing guide(17) consists of acetal having high hardness, a fixing screw connected between the fixing guide(17) and the supporting stand(15) doesn't untie easily and prevents a distance between the fixing guides(17)(hole size) from increasing. The fixing guide(17) is made in L shape to fix the lower part of the wafer cassette(13) firmly.
Patent KR-19990083347-A (KR)
Title: 관통연결부들을갖는다중장치집적회로패키지
IPC: H01L25/18
Filed: 1999-04-20
Abstract: 관통 연결부들을 갖는 다중 장치 집적 회로 패키지가 개시된다. 제 1 장치는 집적 회로 패키지내에 장착되고, 집적 회로 패키지의 다수의 핀들에 연결된다. 제 2 장치는 집적 회로 패키지내에 장착되고 적어도 하나의 관통 컨넥터를 가진다. 관통 컨넥터는, 제 1 장치가 제 2 장치를 통하여 다수의 핀들중 하나에 연결될 수 있도록 제 1 장치를 제 2 장치에 연결하기 위하여 사용된다.
Patent KR-19990083452-A (KR)
Title: 고체표면마감재시트를제조하는장치
IPC: B23D53/02
Filed: 1999-04-23
Abstract: 본 발명은 중합체 표면 마감재 시트를 제조하는 방법과, 이러한 방법에 의해 제조된 시트와, 이러한 시트를 제조하는 데 사용되는 장치를 개시하고 있다.  이러한 방법은 고체 중합체 슬래브를 제공하는 단계와, 고체 중합체 슬래브를 표면 마감재 시트로 슬라이싱하는 단계를 포함한다.  시트는 중합체 매트릭스 내에 함유된 중합체 입자를 포함할 수도 있다.  입자는 시트의 최종 두께를 초과하는 최대 직선 치수를 가져, 미적으로 즐거움을 제공하는 "청키(chunky)" 외관을 나타낼 수도 있다.  시트를 슬라이싱하는 데 사용되는 장치는 표면을 비교적 매끄럽고 균일하게 제조하며, 최종 시트 내의 두께 편차량을 극적으로 줄일 수 있다.
Patent KR-20000067699-A (KR)
Inventor: PARK YEONG SEO
IPC: F16L55/045
Filed: 1999-04-30
Abstract: PURPOSE: A water hammer preventing device largely reduces the number of assembling parts, lowers the manufacturing cost, needs not the special repair and maintenance and prominently absorbs the water hammer inside a pipeline. CONSTITUTION: A water hammer preventing device includes a ball housing(50), an absorbing device and a supporting device. The ball housing(50) connected between a pipeline(P) has a fluid inlet(51) at one end side thereof and a fluid outlet(52) at the other end side thereof. The absorbing device positioned in the ball housing(50) separately absorbs the pressure rise of the pipeline(P) simultaneously. The supporting device makes the absorbing device be positioned inside the ball housing(50) and is formed of the mesh structure(60). The absorbing device is composed of many buffering balls(70) made from rubber. The buffering ball(70) is arrayed between the inner wall of the ball housing(70) and the mesh structure(60). The buffering ball(70) is in contact with both.
Patent KR-19990088209-A (KR)
Title: 고열전도성질화규소소결체및그제조방법
IPC: C04B35/593
Filed: 1999-05-12
Abstract: 본 발명은 질화 규소 소결체에 있어서 본래 구비한 고강도 특성에 더해 열전도율이 높고 방열성이 우수한 고열전도성 질화 규소 소결체 및 그 제조방법에 관한 것으로서, 희토류 원소를 산화물로 환산하여 2.0∼17.5중량%, Hf를 산화물로 환산하여 0.3∼3.0중량%, Mg을 산화물로 환산하여 0.3∼3.0중량%, 필요에 따라서 칼슘(Ca) 및 마그네슘(Mg)의 적어도 한쪽을 산화물로 환산하여 1.5중량% 이하, 또 필요에 따라서 Ti, Zr, V, Nb, Ta, Cr, Mo, W의 산화물, 탄화물, 질화물, 규화물, 붕화물로 이루어진 군에서 선택되는 적어도 1종류를 산화물로 환산하여 1.5중량% 이하, 기타 불순물 양이온 원소로서 Al, Li, Na, K, Fe, Ba, Mn, B를 합계 0.3중량% 이하 함유하고, β상형 질화 규소 결정 및 입계상으로 구성하고, 이 소결체는 입계상중에서의 결정화합물상의 입계상 전체에 대한 비율이 20% 이상이고, 또 기공율이 용량비로 2.5% 이하, 열전도율이 70W/m·K 이상, 3점 굴곡 강도가 실온에서 700MPa 이상이며, 또, 소결체에 연삭 가공을 하지 않고, 소결체 그대로도 표면 조도가 작고 우수한 강도 특성을 발휘하는 것을 특징으로 한다.
Patent KR-20000074320-A (KR)
Inventor: MIN BYUNG MOO
IPC: B29C69/00
Filed: 1999-05-20
Abstract: PURPOSE: A sclera expanding device for presbyopia surgery and method for making the same are provided to expand a distance between a ciliary body and a crystalline lens in order to tense a ciliary zonule by inserting the device into a sclera of an eye at the time of a surgery for medical treatment of a presbyopic eye. CONSTITUTION: In a sclera expanding device for presbyopia surgery and method for making the same, the method for making the sclera expanding device is characterized in that a mold of the sclera expanding device is firstly made from a resin prepared by mixing a synthetic resin and a water soluble material and then the mold of the device is formed with fine openings by extracting the soluble material from the mold by aid of distilled water under the action of ultrasonic wave. The sclera expanding device is a mold of synthetic resin, which consists of a curved inner surface(1) with a predetermined curvature radius, an outer surface, and corners(3, 3'). On the mold, fine openings are provided at random.
Patent KR-20000074839-A (KR)
Inventor: KIM IK HWAN
IPC: H04N7/08
Filed: 1999-05-26
Abstract: PURPOSE: An apparatus and method of processing caption information of a receiver of a digital TV are provided to convert an analog caption through a cord converting operation into a digital caption, thereby providing various caption display modes. CONSTITUTION: The apparatus for processing caption information of a receiver of a digital TV comprises a caption decoder(25) for decoding analog/digital caption information included in a transport stream to construct a corresponding OSD, a caption converting portion(30) for converting an analog caption decoded in the caption decoder into a digital caption and then feeding back to the caption decoder, and a controller(29) for controlling the caption converting portion to convert the analog caption output from the caption decoder into the digital caption through a code converter according as an analog caption mode is selected by a user. A method of processing caption information of a receiver of a digital TV comprises the steps of: extracting the caption information of the present selected channel if a caption mode is selected by the user and determining whether the caption mode is the analog caption or the digital caption; decoding the caption information if the caption mode is the digital caption, and constructing and displaying a corresponding OSD; and converting the analog caption into the digital caption if the caption mode is the analog caption, and decoding the converted digital caption, and then constructing and displaying a corresponding OSD.
Patent KR-19990088584-A (KR)
Title: 안료제제및특히인쇄용잉크로서의이의용도
IPC: C09D11/037
Filed: 1999-05-27
Abstract: 본 발명은 코팅되고/되거나 비코팅된 SiO 2 박편과 하나이상의 특이 효과 안료의 혼합물 및 포스페이트 유도체로 본질적으로 구성된 안료 제제, 및 특히 인쇄용 잉크에서의 이의 용도에 관한 것이다.
Patent KR-20010001134-A (KR)
Inventor: LEE JAE JUN
IPC: H04Q3/62
Filed: 1999-06-02
Abstract: PURPOSE: A method for changing the grades of users in a private switching system, is provided to regulate a speech grade allocated to a self terminal into an upper grade for a restricted time, when speech of upper grades are requested to handle an urgent business. CONSTITUTION: Whether an input of a function code requesting grade regulation is detected is decided, after off-hooking of an optional subscriber terminal connected to a private switching system. If the input of the function code is detected, a speech restriction time and an upper grade for the corresponding terminal are set up and a local loop is occupied. A call is connected with a terminal of the other party according to inputted telephone numbers. When exceeding the restricted time under a state that call connection is maintained, the connected call is disconnected and the local loop is restored, then a congestion(CG) tone is transmitted. If on-hook is detected when the call connection is maintained, the local loop is restored and a mode enters a standby mode.
Patent KR-20010001608-A (KR)
Inventor: OH HAN SU
IPC: H01L29/06
Filed: 1999-06-07
Abstract: PURPOSE: A high voltage device is provided to enhance the reliability thereof by increasing a withstand junction breakdown voltage and improving a snap-back characteristic. CONSTITUTION: An n-type well region(310) is formed in a semiconductor substrate(300). A plurality of active regions(301a) are defined in the n-type well region(310) for forming a source/drain of a high voltage device. A field plate(306) is formed on an upper surface of a filed oxide layer(301b) and an upper portion of a gate electrode(302). An electric field is distributed by applying a ground voltage or a voltage below the ground voltage to the field plate(306). The field plate(306) is formed to cover an edge portion of the field oxide layer(301b), and therefore a junction of a drain(303a) is apart from the field oxide layer(301b) in a predetermined distance. Accordingly, a drift layer(304) sufficiently encloses the drain region(303a), and thereby preventing steep junction profile caused by the contact between the drain region(303a) and the n-type well(310).
Patent KR-20010003166-A (KR)
Title: Vc12 demapper using digital phase-locked loop
Inventor: JUN GI YONG
IPC: H04L7/00
Filed: 1999-06-21
Abstract: PURPOSE: A VC12 demapper using a digital phase-locked loop is provided which demultiplexes VC12 data into E1/T1 data, being adapted for reduction of jitter and satisfying international standards. CONSTITUTION: A VC12 demapper using a digital phase-locked loop includes a decoder(50), a buffer(60), a bit leaking controller(70), a difference value calculating unit(80), a clock controller(90) and a digital phase-locked loop(100). The digital phase-locked loop has a phase comparator for receiving a clock control signal from the digital clock controller to compare an output clock signal fed back with its phase to generate a corresponding error value, a low pass filter for removing unnecessary noise components from the error value, and a clock generator for receiving the output signal of the low pass filter to generate an output clock signal corresponding thereto and send it to the buffer. The phase comparator is configured of an exclusive OR gate and the low pass filter is configured of an up-down counter.