baber/WOPTO huggingface dataset:
Patent KR-100275555-B1 (KR)
Title: Door for refrigerator
Inventor: LEE JAE SEUNG
IPC: F25D23/00
Filed: 1997-10-30
Granted: 2000-12-15
Abstract: PURPOSE: A door apparatus of a refrigerator is provided to prevent a gasket from being separated and to inhibit defects in sealing a gasket and friction noise by preventing excess contact between the gasket and a case when a door is opened/closed. CONSTITUTION: A refrigerator door(30) is rotated counterclockwise to be opened when a user pulls the refrigerator door forward with a grip groove(31) on a side of the refrigerator door. A hinge axis(52) of an intermediate hinge member(50) is separated from a small circular groove of a hinge groove(33) when the refrigerator door is opened. As the hinge axis is positioned at a large circular groove, a gasket is moved forward the user and the refrigerator door is kept at a tilt angle(alpha). The gasket is kept loose in contact from a case(10) or separated with a distance to inhibit friction noise. When the refrigerator door is closed by a pushing force toward the case, the refrigerator door is rotated clockwise to be closed. The hinge axis is returned to the small circular groove from the larger groove when the door is closed. The gasket is moved toward the case and adhered to the case softly. Therefore, the refrigerator door is closed.
Patent KR-100379650-B1 (KR)
Title: 기판세정장치및기판세정방법
IPC: H01L21/00
Filed: 1997-11-19
Granted: 2003-07-22
Abstract: 본 발명의 기판세정장치는 기판을 유지하여 회전시키는 스핀척(21)과, 이 스핀척에 의해 회전되는 기판의 피세정면에 접촉하는 스크러브부재(33,51,54,61,73)를 가지는 세정브러시부(29,50,71)와, 이 세정부러시부를 통하여 기판의 피세정면으로 세정액을 공급하는 세정액 공급기구(92,93)와, 상기 스크러브부재(33,51,54, 61,73)를 기판의 피세정면으로 밀어 붙이는 가압조정기구(80)와, 상기 스크러브부재(33,51,54,61,73)를 기판에 대하여 기판의 반경방향으로 상대적으로 이동시키는 이동기구(41)를 구비하며, 상기 스크러브부재(33,51,54,61,73)는, 기판의 피세정면에 접촉하는 접촉부(33a,51,54a,61a,73a)와, 이 접촉부의 주위에 설치되어, 상기 접촉부(33a,51,54a,61a,73a)가 기판의 피세정면과 접촉하고 있을 때에는 기판의 피세정면과 비접촉으로 되도록 형성된 비접촉 둘레 가장자리부(33b,54b,61b,73b)를 구비한다.
Patent KR-100328051-B1 (KR)
Title: A Method of manufacturing high strength steel sheet
Inventor: LEE GANG BOK
IPC: B21B3/00
Filed: 1997-11-25
Granted: 2002-05-10
Abstract: PURPOSE: A method for manufacturing high tensile strength steel sheet with a tensile strength of 140 kgf/mm¬2 by micronizing the effective grain size of martensite is provided. CONSTITUTION: The method for manufacturing high tensile strength steel sheet includes step of heating a slab comprising C 0.13 to 0.20 wt.%, Mn 0.5 to 1.5 wt.%, Si 0.15 to 0.35 wt.%, 0.02 wt.% or less of P, 0.008 wt.% or less of S, Cr 0.3 to 1.0 wt.%, B 0.001 to 0.004 wt.%, Ti 0.01 to 0.04 wt.%, Nb 0.01 to 0.04 wt.%, Sol-Al 0.02 to 0.06 wt.%, a balance of Fe and incidental impurities to the temperature range of 1150 to 1300°C; hot rolling the slab in the nonrecrystallization temperature region at a cumulative reduction ratio of higher than 40%; starting water-cooling within 30 seconds after hot rolling to ambient temperature at a cooling rate of 5 to 50°C/sec; reheating the cooled steel sheet to the temperature range of 850 to 910°C; cooling the reheated steel sheet to ambient temperature at a cooling rate of 10 to 50°C/sec; and tempering the cooled steel sheet in the temperature range of 150 to 350°C.
Patent KR-100247779-B1 (KR)
Inventor: KIM JONG-CHEON
IPC: H04N5/228
Filed: 1997-11-26
Granted: 2000-03-15
Abstract: 본 발명의 저분해능 소자를 사용한 고분해능 비디오 표시장치는 매 스캔 영역 마다 한 픽셀을 샘플링하는 것에 의해 p×q 고화질 영상 신호로부터 k 개의 m(m 〈 p)×n(n 〈 q) 저화질 영상 신호로 분리하고 분리된 k(k 〈 m, k 〈 n) 개의 저화질 영상신호를 k 배의 표준 필드 주파수로 출력하는 영상 분리부와, m×n  저화질 영상 신호를 광영상으로 변환하는 영상 변환부와, k/2 × k/2 픽셀 영역 내의 모든 픽셀을 스캔하도록, 상기 k 배의 표준 필드 주파수로 수평 및 수직 방향으로 반사 각도를 바꾸면서 상기 광영상을 스크린 상에 비추는 회전 반사경을 포함한다. 따라서, 본 발명에서는  저분해능의 액정표시기를 사용하여 고화질의 영상을 표시할 수 있다.
Patent KR-100259243-B1 (KR)
Inventor: KIM TAE-IL
IPC: B60T17/18
Filed: 1997-12-10
Granted: 2000-06-15
Abstract: PURPOSE: A brake control device of a fork vehicle is provided to maintain baking function when a braking pump is out of order, by using hydraulic pressure assist, and to prevent accidents resulted from a braking malfunction. CONSTITUTION: A compressed oil containing device(80) contains the compressed oil through a bypass line(70), which includes a check valve(72) on one side of a supplying line(22). A first sensor(12) detects the operation of a hydraulic pump(20) and outputs the electric signal. A second sensor(42) detects the operation of a brake pedal(40) and outputs the electric signal. A control part(100) receives the signals of the first and the second sensing sensors and outputs the control signal. A solenoid valve(90) is opened by the control signal of the control part and supplies the compressed oil for a hydraulic buster(30) through the supplying line.
Patent KR-100276076-B1 (KR)
Title: Device for controlling instability of flow in loop-type thermosyphon/heat pipe
Inventor: KIM GWANG SU
Filed: 1997-12-17
Granted: 2001-03-02
Abstract: PURPOSE: A device for controlling the instability of a flow in a loop-type thermosyphon is provided to enhance the efficiency of an air conditioning system by making a fluid flow stably in a direction and preventing the depression of an evaporating unit. CONSTITUTION: A diameter of a condensation return path pipe(40) toward an evaporating unit(10) having a two-phase loop-type thermosyphon is shorter than a diameter of a two-phase insulating rising pipe. The condensation return path pipe is inserted into the evaporating unit. A block is formed in the evaporating unit to form a flow path of an operating fluid. The operating fluid flows stably along the flow path. With the uniform flow of the operating fluid in the evaporating unit, the temperature in the evaporating unit is kept uniform. Therefore, the volume of the evaporating unit is sustained and the evaporating unit uniformly contacts with a heating unit.
Patent KR-100264327-B1 (KR)
Title: A method for compensating image deviation in image forming device.
Inventor: KIM YONG GEUN
IPC: G03G15/00
Filed: 1997-12-20
Granted: 2000-08-16
Abstract: PURPOSE: An image shift compensation method of the image forming device is provided to compensate for the shift during forming a latent electrostatic image on a photo conductive belt to improve image quality. CONSTITUTION: The image shift compensation method of the image forming device includes following steps. At first, a laser beam is illuminated on the photo conductive belt which slides align with a predetermined path at a constant speed the shift distance generated at the photo conductive belt is measured(S10) and the laser beam is illuminated while varying the illumination position along with the shift distance(S20). A position which is spaced with the shift distance from an arbitrary set reference position is determined as the illumination position. The spacing direction from the reference position is determined along with the shift direction of the photo conductive belt.
Patent KR-100258386-B1 (KR)
Title: Ring detection circuit
Inventor: LEE BAE GEUN
IPC: H04M3/22
Filed: 1997-12-22
Granted: 2000-06-01
Abstract: PURPOSE: A ring detection circuit is provided to detect a ring signal quickly by converting the ring signal into an envelope. CONSTITUTION: When there is a ring signal, a capacitor(C1) removes a direct current from the ring signal, and applies an alternating current of the ring signal to a level limiter(110). The level limiter(110) limits a level of the ring signal, and outputs the limited ring signal to a photo coupler(120). The photo coupler(120) outputs the limited ring signal to the first integrator(130) by isolating an input side and an output side. The first integrator(130) and the second integrator(210) integrate the limited ring signal, and output an integration result of the limited ring signal to an invert part(220). The invert part(220) inverts the integration result of the limited ring signal, and outputs the inverted signal to a ring detection port of an MPU.
Patent KR-100266814-B1 (KR)
Inventor: LEE YOUNG-YEOP
IPC: H04B7/005
Filed: 1997-12-26
Granted: 2000-09-15
Abstract: PURPOSE: A method and a system for designing an adaptive array of a radio communication antenna affected by a multipath are provided to prevent beam from being formed in a wrong direction using an array response vector. And the method and system is provided to calculate the array response vector according to a physical characteristic of a communication channel, and to apply the array response vector to a vector obtained by a beam forming algorithm of a maximum signal-to-interference and noise ratio. CONSTITUTION: A receiving signal is calculated from an antenna array. Whether to reflect a multipath is checked. If a multipath is not reflected, an array response vector is calculated. A covariance matrix of the sum of an interference and a noise signal is calculated from the receiving signal, the array response vector and a desired signal. A beam forming weight vector is calculated according to a maximum signal-to-interference and noise ratio. An output vector is generated from the beam forming weight vector and the receiving signal. If a multipath is reflected, an array response vector is calculated. A covariance matrix of the sum of an interference and a noise signal is calculated from the receiving signal, the array response vector and a desired signal. A beam forming weight vector is calculated according to a maximum signal-to-interference and noise ratio. An output vector is generated from the beam forming weight vector and the receiving signal. The calculating operations are performed by predetermined formulas.
Patent KR-100449036-B1 (KR)
Title: Loading apparatus of trim form system for semiconductor package to improve productivity of semiconductor package
Inventor: JUNG MYEONG GUK
IPC: H01L21/68
Filed: 1997-12-30
Granted: 2004-12-14
Abstract: PURPOSE: A loading apparatus of a trim form system for a semiconductor package is provided to improve productivity of a semiconductor package by smoothly and precisely transferring a material to be singulated and trim-formed. CONSTITUTION: A loading apparatus(10) gradually transfers a material separated from a leadframe in a singulation performing unit of a trim form system for fabricating a semiconductor package to a trim form performing unit. In an up-and-down arm transfer unit, a transfer unit B(30B) moves up and down in a base(11) due to a cam part(20) installed in the loading apparatus, and an arm(90) is installed over a transfer unit A(30A) such that the arm transfers vertically. In a right-and-left arm transfer unit, the transfer unit A moves up and down in the transfer unit B due to rotation of the cap part, and a lead screw(60) rotates in the right-and-left direction according to the transfer of the transfer unit A. A roller(70) that performs an angular motion toward an eccentric position is installed over the transfer unit A to transfer the arm in the right-and-left direction.
Patent KR-100279992-B1 (KR)
Title: 클러치 마스터 실린더 취부 구조
Filed: 1997-12-31
Granted: 2001-03-02
Abstract: 본 발명은 종래의 클러치 마스터 실린더 취부 구조가 클러치 페달을 밟을 경우 클러치 페달은 회전 운동을 하지만 피스톤은 직선 운동을 해야하므로 푸시 로드에서 편심 현상이 발생되어 피스톤이 조기 마모되고 실린더 본체의 내경에 스크래치를 일으키는 문제점이 있기 때문에, 
     대시 패널에 고정된 실린더 본체의 내부에서 전후 이동되어 유압을 발생시키는 피스톤과, 상기 피스톤을 전후 이동시켜 클러치를 작동시키는 클러치 페달과, 일단이 상기 피스톤에 연결되고 타단이 상기 클러치 페달에 연결된 푸시 로드를 포함하는 클러치 마스터 실린더의 취부 구조에 있어서, 상기 푸시 로드의 상면에는 래크가 형성되고, 상기 래크와 치합되어 푸시 로드를 전후 이동시키는 피니언이 클러치 페달의 프레임 부분에 설치되며, 상기 프레임 부분에는 탄성력을 이용하여 상기 피니언이 상하 이동될 수 있도록 하는 피니언 지지수단이 구비됨으로써. 
     클러치 페달의 회전시 그 회전력을 피니언이 상하 이동하면서 흡수하여 푸시 로드가 항상 직선 운동을 하게 되므로 피스톤의 마모 및 실린더 본체의 내경부 스크래치가 방지되어 내구성이 향상되도록 하는 클러치 마스터 실린더 취부 구조에 관한 것이다.
Patent KR-100300718-B1 (KR)
Title: Device for turning vehicle in place
Inventor: LEE DONG UK
IPC: B62D15/00
Filed: 1997-12-31
Granted: 2001-10-27
Abstract: PURPOSE: A rotating apparatus of a vehicle is provided to turn a vehicle conveniently in a limited space by rotating around the middle of the vehicle, and to reduce wear of tires in turning by preventing the vehicle body from being damaged. CONSTITUTION: A turning device of a vehicle is composed of a center wheel installed in the middle of a vehicle body; a vehicle wheel lifting unit moving the center wheel down, and moving the vehicle body up; and a differential generating apparatus(60) installed in a final reduction gear for differentiating. The differential apparatus has a power train unit(61) transmitting driving force from a ring gear(72) to the final reduction gear or a differential case, a left side gear(74) placed in the differential case and engaged with a pinion, a differential case brake(71) placed at the side of the differential case to restrict rotation of the differential case, and a hydraulic cylinder pushing the differential case brake to the differential case. The vehicle is turned around the middle of the vehicle body in the limit space. Damage of the vehicle body and wear of the tire are prevented with turning the vehicle conveniently.
Patent KR-100271448-B1 (KR)
Title: Operating control device for virtual reality system
Inventor: HAN KI BONG
IPC: G06Q50/22
Filed: 1997-12-31
Granted: 2000-11-15
Abstract: PURPOSE: An apparatus for controlling a motion of a virtual reality motion reproducer is provided to maintain a regular control function by adaptively controlling a partial load oil pressure cylinder according to the number of passengers of a virtual reality motion reproducer. CONSTITUTION: A motion controller of a virtual reality motion reproducer is composed of a reference input unit(220), a subtracter(230), a controller(210), a system intermediate variable estimation unit(260), a controller design unit(250), a video generation unit(240) and a data processing unit(270). The video generation unit(240) generates video data and position data. The data processing unit(270) generates a reference signal which moves the virtual reality motion reproducer. The reference input unit(220) inputs a reference signal outputted from the reference input unit(220). The subtracter(230) subtracts a position signal from the reference signal. The controller(210) reduces a figure of merit in a frequency band. The system intermediate variable estimation unit(260) estimates a system intermediate variable in order to output a controlling power. The controller design unit(250) designs a controller for maintaining a control efficiency of the controller(210).
Patent KR-100367684-B1 (KR)
Title: 모서리가 둥근 파스닝탭 기저귀체결수단
IPC: A61F13/58
Filed: 1995-06-06
Granted: 2003-03-04
Abstract: 본 발명은 최대 폭(y)를 가진 제 2 절반부(3) 및 최소 폭(x)를 가진 제 1 절반부(2)를 가진, 1 회용 기저귀에 사용되는 파스닝 탭에 관한 것이다. 측면 가장자리 부분들은 날카로운 모서리를 갖지 않는다. 제 1 절반부 측면 가장자리(7 및 7') 및 인접한 제 2 절반부 측면 가장자리(8 및 8')는 2 개의 절반부(2 및 3)을 분리하는 횡단선(10)을 반사면으로서 취했을 때 서로 역전된 거울상으로 존재한다. 종방향 이등분 중심선(12)를 반사면으로서 취하면 제 1 측면 가장자리(7 및 8)은 대향하는 측면 가장자리(7' 및 8')의 거울상이 된다. 본 발명의 테이프는 부착된 파스닝 탭의 말초단부에서 전면의 최대 박리력을 제공하여 더욱 확고한 체결을 제공하며, 임의의 폐기물을 산출하는 일 없이 원료 로울로부터 반복하는 패턴으로 절단할 수 있다.
Patent KR-100256479-B1 (KR)
Inventor: TROKHAN PALL DENNIS
IPC: D04H1/64
Filed: 1995-10-26
Granted: 2000-05-15
Abstract: A method of forming apertured webs is provided comprising the steps of: (a) forming a foraminous member comprising gross foramina and fine foramina wherein the gross foramina define a patterned design superimposed on the fine foramina by means of applying and curing a photosensitive resin onto a foraminous element comprising fine foramina in order to form elevated portions on the fine foramina defining the gross foramina, (b) providing a layer of fibers on said foraminous member; and (c) applying fluid streams to said layer of fibers such that the fibers are randomly entangled in regions interconnected by fibers extending between adjacent entangled regions in a pattern determined by the pattern of the gross foramina of the foraminous member to form an apertured web.
Patent KR-100288565-B1 (KR)
Title: 3상 케이블 접속용 접속기 및 그 제조 방법
IPC: H01R24/00
Filed: 1995-11-14
Granted: 2001-05-02
Abstract: 본 발명은 절연 구조(11)를 둘러싸는 동심, 세그먼트적으로 배치된 위상 도체(1)와 상기 위상 도체를 밀폐시키는 동심 접지 도체(8)를 포함하는 3상 케이블을 위한 접속기 및 그 제조 방법에 관한 것이다.  본 발명에 따르면, 상기 도체 내부의 위상 도체(1)는 이들의 세그먼트내에 개별적으로 위상 도체(1)를 유지하는 별모양 분할 절연 단편(3)에 의해 서로 절연된다.  상기 도체의 위상 단자(2)는 상기 분할 절연 단편(3)의 하부의 세그먼트상에 배치되고, 상기 접속기는 상기 위상 단자(2)에 대항하여 상기 위상 도체(1)에 압력을 가하도록 배치되는 클램프 수단(5, 7)을 추가로 통합하며, 상기 접속기는 상기 접지 도체(8)가 거꾸로 밴딩될 수 있도 그것의 보조로 상기 접속기는 리셉터클에 기계적으로 록킹될 수 있는 페룰(10)을 추가로 통합한다.
Patent KR-100376396-B1 (KR)
IPC: B25B13/00
Filed: 1995-12-11
Granted: 2003-05-27
Abstract: PCT No. PCT/GB95/02879 Sec. 371 Date Jun. 23, 1997 Sec. 102(e) Date Jun. 23, 1997 PCT Filed Dec. 11, 1995 PCT Pub. No. WO96/20071 PCT Pub. Date Jul. 4, 1996A ratchet wrench comprises an output drive member (13,17) rotatable about a first axis, a drive housing (15) containing the output drive member, and a handle (14) on the drive housing for rotating the drive housing about the first axis. A rotary member (24) within the handle is rotatable about a second axis and a drive ring (21) extends around the output drive member. A coupling means (25) couples the rotary member to the drive ring so that rotation of the rotary member about the second axis causes rotation of the drive ring about the output drive member. The wrench also includes primary ratchet means (17, 42) for selectively unidirectionally coupling the output drive member to the housing, and secondary ratchet means (23, 43) for selectively unidirectionally coupling the output drive member to the rotary member through the drive ring whereby the output drive member (13, 37) can be rotated in a selected direction either by rotation of the handle 14 or by rotation of the rotary member (24).
Patent KR-100411410-B1 (KR)
Title: Process for the production of 2-(substituted benzoyl)-1,3 cyclohexanedions
IPC: C07C45/54
Filed: 1996-01-16
Granted: 2004-03-31
Abstract: PCT No. PCT/GB96/00081 Sec. 371 Date Jun. 24, 1997 Sec. 102(e) Date Jun. 24, 1997 PCT Filed Jan. 16, 1996 PCT Pub. No. WO96/22957 PCT Pub. Date Aug. 1, 1996A process for preparing a compound of formula (I), where R1, R2, R3, R4, R5 and R6 are independently hydrogen or C1-6 alkyl; R7 is halogen, cyano, NO2, C1-4 alkyl, C1-4 haloalkyl, C1-4 alkoxy or RaS in which Ra is C1-4 alkyl; R8, R9 and R10 independently are hydrogen, halogen, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1-4 haloalkoxy, CN, NO2, phenoxy or substituted phenoxy; RbS(O)n Om in which m is 0 or 1, n is 0, 1 or 2 and Rb is C1-4 alkyl, C1-4 haloalkyl, phenyl or benzyl, NHCORc in which c is C1-4 alkyl, NRdRe in which Rd and Re independently are hydrogen or C1-4 alkyl; RfC(O)- in which Rf is hydrogen, C1-4 alkyl, C1-4 haloalkyl or C1-4 alkoxy; SO2NRgRh in which Rg and Rh independently are hydrogen or C1-4 alkyl; or any two of R8, R9 and R10 together with the carbon atoms to which they are attached form a 5 or 6 membered heterocyclic ring containing up to three heteroatoms selected from 0, N or S and which may be optionally substituted by C1-4 alkyl, C1-4 haloalkyl, C1-4 alkoxy, =NOC1-4 alkyl, or halogen; which process comprises the rearrangement of a compound of formula (II), where R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 are as defined in relation to formula (I), in the presence of a base and a polar aprotic solvent characterized in that the process is carried out in a reaction medium substantially free of hydrogen cyanide or cyanide anion.    <IMAGE>  (I)   <IMAGE>  (II)
Patent KR-100268967-B1 (KR)
Inventor: ARAI SUSUMU
IPC: H01L23/498
Filed: 1997-01-30
Granted: 2000-10-16
Abstract: 본 발명의 주석-은 합금 도금욕은 적어도 주석 화합물, 은 화합물 및 이들의 착화제로서 피로인산 화합물과 요오드 화합물을 기본 조성으로서 함유함을 특징으로 한다. 인체에 유해한 시안 화합물을 전혀 사용하지 않고 높은 전류 효율로 임의 조성의 주석-은 합금 피막을 수득할 수 있다. 또한 당해 도금욕은 공기 교반에도 견디고 대단히 안정적인 동시에 당해 도금욕에서 도금한 주석-은 합금 피막의 외관, 밀착성 및 땜납 웨팅성은 양호하며 납을 함유하지 않는 땜납 합금으로서 우위성이 있다.
Patent KR-100268324-B1 (KR)
Inventor: OTSUNA SEIKO
IPC: C12N1/21
Filed: 1996-06-05
Granted: 2000-10-16
Abstract: 본 발명은 코리네형 세균내에서, L-리신 및 L-트레오닌에 의한 피이드 백 저해가 실질적으로 해제된 아스파르토키나제를 보존 유지하고, 디하이드로디피콜린산 리덕타제를 암호화하는 DNA, 디하이드로디피콜린산 신타제를 암호화하는 DNA, 디아미노피멜산 데카르복실라제를 암호화하는 DNA 및 디아미노피멜산디하이드로게나제를 암호화하는 DNA를 순차 증강시킴에 의해, L-리신 생산 능력 및 생산 속도를 향상시키는 것에 관한 것이다.
Patent KR-100293436-B1 (KR)
Inventor: KIM CHANG YEON
IPC: G02F1/1343
Filed: 1998-01-23
Granted: 2001-08-07
Abstract: PURPOSE: A liquid crystal device of in plane switching mode is provided to improve opening ratio and yield rate by forming a gate electrode, a data electrode, and a common electrode on each different flat board and uniting SOG(Storage On Gate) mode or uniting SOG mode and SOC(Storage On Common) mode. CONSTITUTION: A liquid crystal device of in plane switching mode comprises a first(110) and second substrate(111), plural gate wiring(101) and data wiring(102), a thin film transistor formed at the crossing point of the data wiring and gate wiring, plural electrodes, a shield(120) formed the thin film transistor and the data electrode(108), plural common electrodes(109), common wiring(103), a first alignment film(123a) formed on the common electrode, a shading layer(128) formed on the substrate, a color filter layer(129) and a second alignment film formed on the shading layer, and a liquid crystal layer(130) formed between the first and second substrate. The overlapped area of the gate wiring, a data electrode, a common electrode, or common wiring is used as storage capacitor. The opening ratio can be improved without covering the partial area of the opening by uniting SOG mode or SOG mode and SOC mode.
Patent KR-100331400-B1 (KR)
Title: 반도체회로
IPC: H03K3/356
Filed: 1998-02-24
Granted: 2002-05-09
Abstract: 본 발명은 확산층의 농도 등의 영향을 받지 않도록 임피던스를 설정할 수 있는 반도체 회로를 제공한다.  본 발명의 반도체 회로는 전원 전압 VDD와 접지 사이에 직렬 접속된 Itype의 NMOS 트랜지스터 N15, N16을 구비한다.  NMOS 트랜지스터 N15의 게이트 단자는 전원 전압 VDD보다도 낮은 전압의 기준 전압 VREF로 설정되고, NMOS 트랜지스터 N16의 게이트 단자는 전원 전압 VDD로 설정된다.  NMOS 트랜지스터 N16의 드레인 전압 VD는 거의 기준 전압 VREF와 일치하고, NMOS 트랜지스터 N16은 선형 영역에서 동작한다.  따라서, NMOS 트랜지스터 N16을 임피던스 소자로서 이용할 수 있고, 별도로 저항 소자를 설치할 필요가 없어져서 확산층의 농도나 전원 전압에 의한 영향을 받지 않게 된다.
Patent KR-100253165-B1 (KR)
Title: Steel fiber automatic manufacturing device
Inventor: KIM JONG NAM
IPC: B21D11/12
Filed: 1998-03-13
Granted: 2000-04-15
Abstract: PURPOSE: An automatic manufacturing device for a steel fiber is provided to automatically mold and cut a steel plate by a slitting roller, a molding roller and a cutting unit. CONSTITUTION: A device for automatically manufacturing a steel fiber consists of a slitting unit (100) shearing a steel plate (710) in the upper portion of a shelf (800); a straightening unit (200) straightening the sheared steel plate; a molding unit (400) molding many bent portions on the straightened steel plate; and a cutting unit (500) cutting the steel plate in a specific length. The slitting unit comprises an upper slitting roller unit (110) and a lower slitting roller unit (120). Plural slitting blades are fixed to one pivot shaft in the upper and the lower slitting roller unit. The slitting blades of the upper and the lower slitting roller unit are crossed each other to increase slitting and shearing effect. The straightening unit comprises an upper roller group (210) and a lower roller group (220) with plural straightening rollers (230). Thus, the steel plate becomes flat by the upper and the lower roller group repeatedly bending the steel plate. The molding unit consists of an upper and a lower molding roller (410,420) with many molding portions. Then, the molding unit forms many bent portions on the steel plate by the rotation of the upper and the lower molding roller. The cutting unit contains a shearing bite (510) and many shearing blades (520) on the circumference of a rotor (530). Then, the steel plate is cut by the shearing blades with the rotating force of the rotor to be a steel fiber (750). The length of the steel fiber is adjusted according to the number of shearing blades.