baber/WOPTO huggingface dataset:
Patent KR-20000000770-A (KR)
Title: Device for multiplying modular
Inventor: SUH JUNG WOOK
IPC: G06F7/44
Filed: 1998-06-03
Abstract: PURPOSE: A device for multiplying a modular is provided to reduce the number of clocks and to reduce a clock cycle by a Redundant Binary(RB) arithmetic for minimizing a period for a whole Rivest Shamir Adleman coding. CONSTITUTION: A device for multiplying a modular comprises: an array storing equipment(51) storing an inner value of a modular multiplication; a multiplier register(52) storing a multiplier value of the array storing equipment; a multiplicand/modular value register storing a multiplicand value or a modular value of the array storing equipment; a reverse calculator figuring a reverse number from the array storing equipment; and a pipeline circulator circulating an output of a pipeline multiplier.
Patent KR-20000001037-A (KR)
Title: Bipolar transistor using a substrate as a collector and fabrication method thereof
Inventor: SONG YU SEON
IPC: H01L29/73
Filed: 1998-06-08
Abstract: PURPOSE: A bipolar transistor and a fabrication method thereof are provided to improve a reliability and to be suitable to the high integrity. CONSTITUTION: The bipolar transistor comprises: a semiconductor substrate(100) having a first conductive type; and an impurity layer(110) formed in the semiconductor substrate and having a second conductive type. The bipolar transistor further comprises an emitter region(140) formed in the impurity layer and having the first conductive type of a high concentration; a base region(150) formed in the impurity layer and having the second conductive type of a low concentration, with the base region spaced from the emitter region. Furthermore, the bipolar transistor comprises a trench(t) formed so as to surround a portion of the impurity layer and to be extended up to a portion of the substrate below the impurity layer, with the trench spaced from the emitter region and the base region; and a conductive layer(130) electrically connected to the substrate and filed in the trench.
Patent KR-19980065070-A (KR)
Title: 가스 저장용기용 밸브의 잔류가스 회수장치
IPC: F17C13/04
Filed: 1998-06-22
Abstract: 액화 석유가스의 과도한 분출을 방지하는 과류 차단장치가 구비된 가스 밸브에 사용되는 가스 저장용기용 밸브의 잔류 가스 회수장치에 관한 것으로, 잔류 가스의 회수 작업성 향상과 작업 시간의 단축을 실현할 수 있도록 함에 그 목적을 두고 있다.    이를 위하여 본 발명은 저장용기의 주출구에 결합된 바디와, 그 내부에 형성된 가스 통로를 개폐하는 밸브체와, 상기 저장용기와 밸브체 사이의 가스 통로에 설치된 볼을 이용하여 그 내부에 규정 이상의 부압이 발생되면 상기 볼의 상승으로 가스 통로가 폐쇄되도록 한 과류 차단장치를 포함하는 가스 저장용기용 밸브에 있어서, 상기 볼의 최저와 최고 위치의 사이공간을 가로지르는 스토퍼를 설치하되, 그 스토퍼를 볼의 승강 동작을 방해하지 않도록 상시 열림 상태로 하여 바디에 나사 결합되게 하고, 필요시 수동 작동에 의해 전진하여 볼의 승강 동작을 멈추도록 한다.
Patent KR-20000004704-A (KR)
Title: Drilling ship having two step moonpool structure
Inventor: KANG BYUNG SUK
IPC: E21B17/00
Filed: 1998-06-30
Abstract: PURPOSE: A drill ship is provided to minimize the resistance increase and the speed drop of the drill ship, needless of reinforcing the support of a riser centralizer. CONSTITUTION: The drill ship is installed with:a expanded large moon pool(3) of the upper part for installing a rail(6); a two step structure typed moon pool(2) including a small moon pool(4) of the lower part formed in a minimum size needed in a drill; a rail for putting BOP into the moon pool.
Patent KR-19990013670-A (KR)
Title: 고주파 펄스아크 용접법과 그 장치 및 용도
IPC: B23K9/09
Filed: 1998-07-08
Abstract: 본 발명의 목적은 용접 케이블의 인덕턴스의 영향을 없애고, 고주파 전자핀치력이 크고 높은 지향성 아크가 얻어지는 고주파 펄스 용접법과 장치 및 용도를 제공하는 데 있다. 
     본 발명에 의하면, 용접개소 근방에 배치되는 비소모 전극 또는 소모전극과 모재간에 아크를 발생시켜 용접을 행하는 펄스아크 용접법에 있어서, 주펄스 전류가 온에서 오프로 이행할 때 주펄스 전류와 극성이 서로 다른 역펄스 전류를 인가하여 펄스의 상승과 하강을 급준시켜 아크의 경직성(지향성)을 향상시킨 고주파 펄스아크 용접법과 그 장치 및 그 용접에 의하여 얻어지는 철도차량과 원자력 발전플랜트가 제공된다.
Patent KR-20000008294-A (KR)
Title: Method for nor type flash memory device
Inventor: LEE HAN KYU
IPC: H01L29/788
Filed: 1998-07-11
Abstract: PURPOSE: The method for a nor type flash memory device is provided. CONSTITUTION: A nor type flash memory has a several unit shells which has both a source and a drain formed at the area where a bit line meets a word line perpendicularly on a silicon board. The nor type flash memory has also a bit line contact which connects the drain and the bit line, a shell array part which connects a word line contact with the word line, a active contact which connects the silicon board to around the shell array part, and a peripheral circuit including a gate contact. The bit line contact on the shell array part is formed by using a mask different from the masks for the active contact, the word line contact, and the gate contact. The shell array part includes plug ions, and the bit line contact, the word line contact, the active contact and the gate contact include iron plug. As the bit line contact on the shell array part is formed independently from the active contact and the gate contact, the contacts are formed safely without the damage from etching.
Patent KR-19990013851-A (KR)
Title: 전자사진 감광체용 기판 및 이 기판을 이용한 전자사진 감광체
IPC: C25D11/24
Filed: 1998-07-14
Abstract: 종방향에서 필름의 성장이 억압되고, 고 습윤도의 균일한 표면을 갖는, 70μS 이하의 어드미턴스 값 (Y 20 )을 나타내는 전자사진 감광체용 기판은 표면상에 알루미늄 양극 산화 필름을 갖는 알루미늄으로 제조된 전자사진 감광체용 기판이 알루미늄 양극 산화 필름을 형성한 후에 포스페이트 형 계면활성제, 나프탈렌 술포네이트 형 포름알데히드 축합물, 또는 비스페놀 A 술포네이트 형 포름알데히드 축합물로 혼합된 실링제로 실링 처리되는 방법으로부터 얻어진다.  이렇게 얻어진 전자사진 감광체용 기판을 전자사진 감광체에서 사용한다.
Patent KR-19990062469-A (KR)
Title: 반도체 장치
IPC: G06F9/24
Filed: 1998-07-31
Abstract: 종래에는, 반도체 장치내에 플래쉬 메모리(2)를 CMOS 프로세스에 의해 형성한 경우, 플래쉬 메모리(2)에 대하여 초기 설정 데이터를 기억시키는 부트 모드시의 소비 전류가 통상 모드시보다 증대되어 수명이나 신뢰성을 저하시키는 등의 문제가 있었다. 
     본 발명에 따르면, 부트 모드시에 사용하지 않는 입력 단자(5), 입출력 겸용 단자(9)와 내부 회로(7, 10) 사이에 해당 내부 회로(7, 10)의 상태를 안정시키기 위한 논리 연산 회로(11)를 마련한 구성의 반도체 장치를 얻을 수 있다.
Patent KR-20000013564-A (KR)
Title: Lead insert ring manufacturing apparatus
Inventor: KANG SUN HO
IPC: B23K35/14
Filed: 1998-08-11
Abstract: PURPOSE: A lead insert ring manufacturing apparatus is provided to improve the performance of a gas meter by regularly being soldered to improve the quality and the intensity of a soldering unit. CONSTITUTION: The lead insert ring manufacturing apparatus installs:a controller(2) adjusting the speed of a driving motor(13) and the driving of a cutting motor(14) and a cylinder(11), on one side face of a main frame(1); a base plate(3) on the upper face of the main frame; a stopper bracket(4) in both sides of the base plate; a stopper bracket(4') in the opposite side; a ring guide(6) formed by connecting the stopper brackets; a ring guide hole(15) in one side of the ring guide; and a cutter guide(16) formed in the upper side of the ring guide in a length direction.
Patent KR-19990007520-A (KR)
Title: 차량용 휠캡
IPC: B60B7/00
Filed: 1998-09-03
Abstract: 본 발명은 차량의 타이어(20)를 지지하는 휠디스크(30)의 휠캡(40)에 관한 것으로, 차량의 전·후차축 양측에서 브레이크 드럼(10)의 플랜지면(15)에 고정되는 휠디스크(30)의 외측에 체결되거나 끼움 및 박음식으로 고정·장착되는 차량용휠캡(40)에 있어서, 상기 휠캡(40)은 상기 휠디스크(30)에 부착고정되는 캡하우징(50)과 이 캡하우징(50)에 고정볼트(42)로 체결되는 중심캡(60)으로 이루어지되, 상기 캡하우징(50)과 중심캡(60)의 내면중 어느 한쪽에는 볼베어링(63)이 장착된 베어링설치부(62)가 구비되고 이 베어링설치부(62)의 대향측에는 베어링삽입부(55)가 구비되어 상기 캡하우징(50)과 중심캡(60)이 상호 자유회전이 가능한 구조로 설치되며, 상기 중심캡(60)의 내면 하단부에는 편하중이 작용하도록 밸런싱웨이트(68)와 편심웨이트(69)가 구비되어 주행시 상기 중심캡(60)이 회전되지 않는 정립(正立)상태가 유지되도록 하는 차량용 휠캡을 제공하여 차량의 정숙성을 더욱 돋보이도록 하여 차량의 품격을 향상시키고, 중심캡(40)의 외면에 부착되거나 일체로 형성된 엠블렘(44)의 식별이 차량 주행중에도 가능하도록 하여 광고효과도 극대화할 수 있는 효과를 갖는다.
Patent KR-19990029807-A (KR)
Title: 유기 박막 ｅｌ 디스플레이 장치의 구동 방법
IPC: G09G3/32
Filed: 1998-09-15
Abstract: 본 발명은 유기 박막 EL 디스플레이 장치의 구동 방법 및 구동 회로에 있어서, 주사 전극들중 선택된 단위 전극과 데이타 전극들중 선택된 단위 전극 사이에 순방향 바이어스가 인가되어 상기 선택된 두 단위 전극과 관련된 선택 픽셀이 발광되고, 상기 주사 전극들중 비선택 단위 전극과 상기 데이타 전극들중 비선택 단위 전극 사이에 역방향 바이어스가 인가되어, 비선택 픽셀의 반여기 상태로 인하여 야기되는 크로스토크(crosstalk)를 방지할 때, 상기 주사 전극들중 상기 단위 전극의 각각의 선택에 따라서 선택되어야 하는 상기 데이타 전극들중 선정된 단위 전극이 선택되기 바로 전에, 모든 상기 주사 전극과 모든 상기 데이타 전극이 한 번 단락되어, 모든 상기 픽셀을 제로 바이어스로 설정하는 유기 박막 EL 디스플레이 장치의 구동 방법 및 구동 회로에 관한 것이다.
Patent KR-20000019836-A (KR)
Title: Television receiver having insect approach preventing function
Inventor: HONG MUN HEON
IPC: H04N5/44
Filed: 1998-09-15
Abstract: PURPOSE: A television receiver preventing insects from approaching by generating an ultrasonic wave is provided. CONSTITUTION: In a television receiver having insects approach preventing function, a modulating signal generator generates a modulating signal of a low frequency band. An ultrasonic wave generator(22) generates an ultrasonic wave signal. A switch(10) judges whether the ultrasonic generator(22) operates according to a request of a user. A frequency determining section determines a frequency of the ultrasonic wave signal according the request of the user. A frequency modulator(24) modulates the frequency of the ultrasonic wave signal determined by the frequency determining section according to the modulating signal from the modulating signal generator.
Patent KR-20000020177-A (KR)
Title: Apparatus for locking cover of portable computer
Inventor: CHOE BYUNG YONG
IPC: G06F1/16
Filed: 1998-09-18
Abstract: PURPOSE: An apparatus for locking a cover of a portable computer is provided to lock easily a cover to a main body by an elastic operation of a compressed coil spring. CONSTITUTION: An apparatus for locking a cover of a portable computer comprises a main body frame, a locking member, and an elastic member. The body frame forms a locking hole(20) for inserting a hook and a nob hole(22) formed on a face at a right angles to a face forming the locking hole. The locking member hooks the hook, or releases the hook by a nob(60) combined to the nob hole. The elastic member pulls the locking member to one direction.
Patent KR-20000020349-A (KR)
Title: Process for preparing enriched beef extract
Inventor: LEE HO BONG
IPC: A23L13/30
Filed: 1998-09-21
Abstract: PURPOSE: An enriched beef extract is prepared which improves productivity and flavor simultaneously reduces viscosity. CONSTITUTION: Process for preparing enriched beef extract is as follows; A beef is extracted at 85- 95°C for 1 hour by hot water using 0.1- 0.5 wt % of sodium chloride solution followed by separation to a liquid and solid residue; The separated solid is decomposed at 55°C and pH 6.5 for 3 hours by 1.0 wt % of endopeptidase to a protein content and inactivated at 85°C for 10 minutes by exopeptidase, and centrifuged. The extract solution and enzyme decomposed solution are mixed and concentrated to give the enriched beef extract.
Patent KR-20000021940-A (KR)
Title: Booster for work equipment of construction machine
Inventor: LEE BYEONG HO
IPC: E02F9/20
Filed: 1998-09-30
Abstract: PURPOSE: A booster is provided to increase a durability of an equipment by preventing an overload in a work equipment when the load over the pressure established in the work equipment is applied while working using a construction heavy equipment such as a loader. CONSTITUTION: A booster is composed of: a first sensor(18a) for detecting an operation pressure to a boom cylinder(14), a second sensor(18b) for detecting the operation pressure at a bucket cylinder(15), a third sensor(18c) for detecting a traveling speed of an equipment. And a variable relief valve(16) is established at a control valve(13) for returning the operation pressure to a hydraulic pressure tank(T) when the load over the pressure established in the boom cylinder(14) and the bucket cylinder(15) is applied. When the load over the pressure established in the boom cylinder(14) and the bucket cylinder(15) is applied, a solenoid valve(12) is established to be switched according to an input of a specific signal to a vent line(19) of the variable relief valve(16) for increasing an established pressure of the variable relief valve.
Patent KR-20000024780-A (KR)
Title: Mouse for computer
Inventor: SHIN MIN CHUL
IPC: G06F3/0354
Filed: 1998-10-01
Abstract: PURPOSE: A mouse for a computer is provided to improve the amusement of a game by seeing, hearing and feeling a working situation to construct a vibration device at the mouse. CONSTITUTION: A mouse is connected to a computer by a mouse pin, and is also connected to a sound card(4). The mouse(5) comprises a vibration device formed at the both sides of the mouse, and the vibration device is composed of a vibration portion and a vibrator. A magnet is formed at a center of the mouse, and a coil is formed at an external circumference. A vibration plate(13) and the coil(12) are connected to one side of the magnet. The vibration plate corresponds to the vibration portion, and the magnet and the coil correspond to the vibrator.
Patent KR-20000025109-A (KR)
Title: Control apparatus of running chemigation system
Inventor: KOO YOUNG MO
IPC: A01G25/09
Filed: 1998-10-08
Abstract: PURPOSE: A control apparatus of running gemination system is provided to measure meteorological environment of local located field and moisture state of soil continuously, and to control operation of running gemination system effectively. CONSTITUTION: A control apparatus of running gemination system comprises base station(10) containing a first computer and lies fixed location; portable running part(20) containing a second computer; data collection apparatus connect with the first computer of base station and collect weather data and soil water data; a first wireless modem connected with the first computer to exchange data between the first computer and the second computer; and a second wireless modem connected with the second computer.
Patent KR-20000025507-A (KR)
Title: Interface device of sonet/sdh 155mbps and 622mbps
Inventor: LEE JUN GYU
IPC: H04L29/10
Filed: 1998-10-12
Abstract: PURPOSE: An interface device of SONET(Synchronous Optical Network)/SDH(Synchronous Digital Hierarchy) 155Mbps and 622Mbps is to compose the optical cable from 4 circuits to 1 circuit by selectively using 4 ports of 155Mbps and 1 port of 622Mbps, thereby performing the same transmission. CONSTITUTION: An interface device comprises: a clock generating unit for receiving the transmission part data of 155Mbps and generating the required signals and clocks; a serial/parallel unit for parallel processing the 155Mbps signals input serially from the clock generating unit; a FIFO(first-in first-out) for buffering the parallel processed signals of the serial/parallel unit; a frame generating unit for generating the frame of 155Mbps; a frame arrangement control and CPU interface unit for parallel processing as to adjust to 622Mbps by controlling the FIFO according to the 155Mbps frame signals of the serial/parallel unit; a transceiver unit for transmitting the parallel processed signals of 622Mbps of the frame arrangement control and CPU interface unit; and a serial/parallel unit for parallel processing the serial electric signals of 622Mbps transmitted from the transceiver unit.
Patent KR-20000026021-A (KR)
Title: Feed containing hell stone powder for chicken
Inventor: SHIN HYUN KWAN
IPC: A23K1/175
Filed: 1998-10-16
Abstract: PURPOSE: A feed for a chicken is provided, which contains hell stone powder to activate the physiological function of a chicken, to promote the growth of a chicken, to improve the digestion efficiency of a chicken, thereby to reduce the feed demand, and to reduce the amount of fats, thereby to improve the quality of a chicken. CONSTITUTION: The feed for a chicken consists of 1-10 wt% of hell stone powder which is prepared by calcining hell stone at a temperature of 1000-1400°C for about 12 hours and pulverizing it to more than 100 mesh; and 90-99 wt% of other common feed additives for a chicken.
Patent KR-19990044918-A (KR)
Title: 방사상으로 활모양인 고주파 중심 스피커 원뿔체
IPC: H04R7/14
Filed: 1998-10-29
Abstract: 본 발명은, 스피커 코일 관모양의 지지대에 위치될 수 있는 향상된 고주파 음향 스피커 중심 원뿔체에 관한 것으로서, 관내에서 그 원뿔체는, 복수개의 엷고 바깥쪽으로 방사상으로 퍼지며 활모양의 단면을 갖는 파이 모양의 세그먼트를 갖고, 이에따라  그 중심쪽으로 볼록한 형태를 생성한다. 그 세그먼트는 중심쪽으로 상당히 오목하며 중심으로부터 방사상으로 멀어질수록 덜 오목한 형태를 취한다. 방사상으로 일정한 음향 저항을 생성하기 위해 세그먼트의 폭은 방사상으로 선형으로 증가될 수 있다. 또다른 실시예에서, 본 발명은 상기 중심 원뿔체, 및 유사한 방사상 특성을 갖지만 그 중심쪽으로 오목한 외부 원뿔체를 포함하는 시스템에 관한 것이다. 바람직하게, 외부 원뿔체의 세그먼트는 유연하고, 높은 음 흡수 링에서 종료된다. 중심 원뿔체는 외부 원뿔체의 중심에서 중앙의 구멍내로 끼워진다.
Patent KR-20000031290-A (KR)
Title: Rush current limit system in simultaneous lighting discharge lamp
Inventor: SUNG EUY KYUNG
IPC: H05B41/16
Filed: 1998-11-05
Abstract: PURPOSE: A rush current limit system in simultaneous lighting discharge lamp is provided to control and manage the ON/OFF and operation status of respective light instrument to effectively limit rush current, and to assure the security of the system by setting a password. CONSTITUTION: A rush current limit system in simultaneous lighting discharge lamp comprises plural fluorescent lamps, electronic stabilizers, LCMs(light control modules) and LCSs(light control systems). The electronic stabilizers control the ON/OFF and luminance of the respective lamp. The bias terminals of the electronic stabilizers are connected to the LCMs. Respective Lcm is parallel connected to the LCS by two communication lines to be controlled.
Patent KR-20000037986-A (KR)
Title: Device for generating and detecting level of internal power in dram
Inventor: KIM DAE UK
IPC: G11C11/407
Filed: 1998-12-03
Abstract: PURPOSE: A device for generating and detecting a level of an internal power in a DRAM is provided to minimize power consumption by a power circuit in a stand-by mode and to supply a uniform power in the entire chip when many internal power generators and many level sensors are existed for the same internal power. CONSTITUTION: An operation to supply power inside a chip or to sense a level of the power is performed by enabling every internal power generators(10) and every level sensors(11). The internal power generator(10) and the level sensor(11) located in the middle are enabled in standby. Sequentially, the internal power generator(10) and the level sensor(11) between a first and a third banks(BANK1)(BANK3) located in the left side of the chip are operated. Next, internal power generator(10) and the level sensor(11) located in the middle of the chip are operated. And then internal power generator(10) and the level sensor(11) between a second and a fourth banks(BANK2)(BANK4) located in the right side of the chip are operated. The internal power generator(10) and the level sensor(11) are repeatedly enabled.
Patent KR-19990081795-A (KR)
Title: 공기구조물
IPC: E04H15/20
Filed: 1998-12-03
Abstract: 개구부를 양 끝에 가진 배럴루프의 형상의 공기구조물은 외부와 내부벽 사이의 리브의 형상의 복수의 공기실을 형성하기 위하여 이들사이에 제공된 리브의 형상의 복수의 간막이벽에 의해서 연결된 시트 또는 막재료의 외부 및 내부벽을 포함하고 있다.  간막이벽은 인접한 공기실사이의 유체연통을 위한 복수의 개구부를 포함하고 있다.  공기구조물은 다음과 같이 한정된 특정치수를 가지고 있다. 
     1.20≤b/a≤1.35 
     1.10≤d/c≤1.35 
     0.2≤a/c≤0.5 
     여기에서 
     a: 공기구조물의 최대개구폭 
     b: 공기구조물의 전체폭 
     c: 유효높이(지면과 내부벽의 최대높이의 사이) 
     d: 전체높이(지면과 외부벽의 최대높이의 사이)
Patent KR-20000038074-A (KR)
Title: Meta data catalog system for cals integrated database
Inventor: MOON HUI CHEOL
IPC: G06F17/30
Filed: 1998-12-03
Abstract: PURPOSE: A meta data catalog system for CALS integrated database is provided so that search of data source can be performed efficiently by managing various information on data sources. CONSTITUTION: A meta data catalog system for CALS integrated database includes a graphic user interface for manipulating visually and intuitively. A meta data register registers meta data. In a meta data catalog manager, a category is used as a unit of the catalog for providing to client. A meta data database is for managing local data. The meta data catalog manager includes a category structure specification for grouping meta data with meaning to clients, a meta data specification for supporting service on file data sources and a multi data mapping define structure specification for constructing a plurality of data as one meta data.
Patent KR-20000038127-A (KR)
Title: Portable electronic system with device for converting exchange/direct current voltage
Inventor: LEE KYEONG SUP
IPC: G06F1/16
Filed: 1998-12-01
Abstract: PURPOSE: A portable electronic system with device for converting exchange/direct current voltage is disclosed to provide an AC/DC voltage conversion device, which is not affected by the system's interior design and is attached to the electronic device to ventilate the interior heat. CONSTITUTION: A portable electronic system with device for converting exchange/direct current voltage is installed in a portable computer, which is composed of a primary housing(12), display panel(14), main board(16), and power adapter assembly(50). (12) is composed of a top housing(12a) and a bottom housing(12b). A CPU(18) is installed in (16) where semiconductor IC apparatus can be installed. A heat sink(20), which can be comprised of radiator pins(22), is installed on the CPU, which emits majority of CPU's heat to the interior air. An additional support fan(24), which can be installed on the side of (12b), ventilates (12)'s hot air to outside of (12). An opening(30) in a grille form is created on the side of (12b) to emit internal air of the housing to outside. A second air vent(28) is formed on the side of the bottom floor and an opening door(32), which opens (30) when (50) is linked on the side of (12b), is installed for the opening.
Patent KR-20000040480-A (KR)
Title: Method for estimating carrier wave frequency deviation
Inventor: SEO YONG CHANG
IPC: H04B7/26
Filed: 1998-12-18
Abstract: PURPOSE: A method for estimating carrier wave frequency deviation is provided to demonstrate the efficiency of an MC-CDMA mobile communication system by rapidly estimating the frequency deviation without increasing system complexity. CONSTITUTION: A phase difference of a symbol generated between the signals transmitted from the transmission terminal at different time(601). A frequency deviation is calculated by dividing the estimated phase difference with the repeated time interval, and again dividing the divided value with a predetermined value(602). After extending the range of the frequency deviation, the extended imperfect positive number is made to perfect positive number by rounding(603,604). The final frequency deviation is estimated by compensating the calculated frequency deviation and the obtained positive number(605).
Patent KR-20000041377-A (KR)
Title: Logic calculation circuit
Inventor: KIM DEOK JU
IPC: H03K19/00
Filed: 1998-12-22
Abstract: PURPOSE: A logic calculation circuit is provided to perform a logic calculation operation stably at a low voltage. CONSTITUTION: A logic calculation circuit comprises a pull-down driving part(100), a pull-down driving part(200), a pull-up driving part(300) and a pull-up driving part(400). The pull-down driving part(100) consists of two NMOS transistors(N10,N11) whose gates are connected to receive input signals(A,B), and which are connected in series between the output terminal for outputting an output signal(X) and a ground power terminal. The pull-down driving part(200) consists of two NMOS transistors(N12,N13) whose gates are connected to receive inverted versions of the input signals(A,B), and which are connected in series between the output terminal for outputting an output signal(X) and a ground power terminal. The pull-up driving part(300) consists of two PMOS transistors(P10,P11) whose gates are connected to receive the inverted versions of the input signals(A,B), and which are connected in series between a power supply terminal and the output terminal. The pull-up driving part(400) consists of two PMOS transistors(P12,P13) whose gates are connected to receive the input signal(A) and the inverted version of the input signal(B), and which are connected in series between the power supply terminal and the output terminal.