baber/WOPTO huggingface dataset:
Patent KR-20010045545-A (KR)
Inventor: BAEK SEUNG HAN
IPC: A63B53/04
Filed: 1999-11-05
Abstract: PURPOSE: Provided is a golf putter including indicating lines at a head and a shaft, which helps a golf player to acquire accurate putting skills and posture and prevents generation of vibration while putting. CONSTITUTION: The putter including a head(1), a shaft(3) and a neck part(2) connecting the head and the shaft comprises indicating lines(4,5) at each proper position of one sides of the putter head and the shaft for guiding right putting alignments of the head while putting and the putter head is composed of Fe-Mn steel containing 10-24wt% of Mn and having a mixed structure of martensite and austenite.
Patent KR-20000035409-A (KR)
Inventor: HIRATA KEIICHIRO
IPC: G11B20/18
Filed: 1999-11-11
Abstract: PURPOSE: A storage apparatus and control method thereof is provided to optimize retrying processing in access of data having different properties required such as reliability and real time property of the access. CONSTITUTION: In a magnetic disk apparatus (20) connected to a host computer (10) through a connection interface (30) and including a magnetic disk controller (21) and a magnetic disk (23), the magnetic disk controller (21) includes a retrying table (21b) in which an area address (21b), an area size (21c), a retrying limit value (21d) and the like are set for each of a plurality of storage areas A, B and the like of the magnetic disk (23) and the retrying limit value (21d) set in the retrying table (21a) from the host computer is used to optimize the retrying processing for data having different reliability or real time property of access such as management data and image/audio data stored in each of the storage areas A, B and the like individually.
Patent KR-20010046602-A (KR)
Inventor: PARK JEONG HUN
IPC: B60J7/057
Filed: 1999-11-13
Abstract: PURPOSE: A shutting device and its method automatically shut a sun roof to prevent intruder, rain or snow from intruding into a car room. CONSTITUTION: A shutting device comprises a door locking detecting sensor(1), an engine condition detecting sensor(2), a sun roof driving part(6), a sun roof opening and shutting selecting switch(3) an electronic control unit(4) and sun roof opening and closing detecting sensors(5). The sun roof opening and closing detecting sensors(5) are installed on the front side and the rear side of a sun roof to detect whether the sun roof is opened or closed by electric signal. If the sun roof is opened when the engine is switched off and a door locking device is activated, the electronic control unit(4) transmits output signal to the sun roof driving part(6) to automatically shut the sun roof.
Patent KR-20010047962-A (KR)
Inventor: JIN JONG DO
IPC: A47C21/04
Filed: 1999-11-24
Abstract: PURPOSE: A mattress with built-in far infrared radiants is provided to obtain thermo-therapeutic effects on a mattress by connecting many far infrared radiants with separate electric wires and to function helpfully to the spots on a body suitable for acupuncture regardless of seasons by radiating far infrared rays. CONSTITUTION: In a mattress with built-in far infrared radiants comprising an electric heater(24) installed to the inside of an outer skin(20) and a stacked material(26) installed downward, many far infrared radiants(28) are connected to the concentrated spots on the body suitable for acupuncture among the locations of a core(22) covered by the outer skin and are laid by being covered by an insulator(16) and a transparent cover(14) located on the upper part of the far infrared radiant exposed to the outside of the outer skin.
Patent KR-20010105420-A (KR)
Title: 펄스폭 변조 동기화 방법
Inventor: HAN YEONG JAE
IPC: H03K7/00
Filed: 1999-12-07
Abstract: 본 발명은 도시철도용 IGBT 인버터를 600Hz 에서 1200Hz 까지의 스위칭 주파수를 이용하여 전압 리플과 토크 리플을 최소화하기 위한 펄스폭 변조 동기화 방법에 관한 것으로, 기본파 성분의 영 교차를 검출하는 기본파 영 교차단계와, 캐리어 성분의 영 교차를 검출하는 캐리어 영 교차단계와, 상기 기본파 성분의 영 교차와 캐리어 성분의 영 교차(β)를 계산하는 계산단계와, θ계산과 각 위상의 위치에 따라 β를 적용하여 과변조 영역 직전에서부터 왜대칭 영 교차 동기를 매 주기마다 동기화 하는 펄스폭 변조 동기단계와, 상기 펄스폭 변조 동기의 출력에 따라 펄스폭을 변조하는 펄스폭 변조단계를 포함하는 것을 그 특징으로 한다. 
     이상에서와 같이 본 발명은, 도시철도용 IGBT 인버터 제어를 위한 동기방식으로 과변조 영역 직전에서부터 왜대칭 영 교차동기를 매 주기마다 해주므로써 스위칭소음과 전압리플 및 토크리플을 최소화시켜주는 효과가 있다.
Patent KR-20010054917-A (KR)
Inventor: HONG JIN GYUN
IPC: H01L21/30
Filed: 1999-12-08
Abstract: PURPOSE: A surface micro machining method of a SOI(Silicon On Insulator) wafer is provided to improve the productivity by reducing a surface processing time of the SOI wafer, and to reduce a defect density of the SOI wafer. CONSTITUTION: According to the method, a SOI wafer is formed which has a rugged surface of a thick SOI wafer fabricated by a bonding method or a thin SOI wafer having a silicon layer transferred by a hydrogen ion implantation. And, the SOI wafer having the rugged surface is planarized and hardened by an HCI vapor etching. Then, a surface defect of the SOI wafer having a hardened surface is reduced by a rapid thermal annealing in a hydrogen gas atmosphere. And, the SOI wafer is rinsed. Before planarizing and hardening the SOI wafer by the HCI vapor etching, the SOI wafer is annealed by the RTA in the hydrogen gas atmosphere. The HCI vapor etching is performed in a reactor having laminar flow at an atmospheric pressure.
Patent KR-20010055038-A (KR)
Title: open state controller for gun of welding robot
Inventor: LIM U JIN
IPC: B23K9/127
Filed: 1999-12-09
Abstract: PURPOSE: A control method of an opened state in a robot welding gun is provided to check the opened state and a welding of the robot gun after finishing the welding. CONSTITUTION: A pressurizing relay (M11) and a pressurizing solenoid (B10) of a robot gun (GUN1) are operated by using checking relays (M10,M11) as input signals of an automatic switch (M20), a manual switch (M21) and a pressurizing switch (M11). A starting relay (M12) is operated to check a started state of the robot gun (GUN1) by the automatic switch (M20) and a pressurizing relay switch (T10). A finishing of an operation is checked by operating a welding finish relay (K100) through a welding finish switch (B8) and the starting switch (M12) of the robot gun (GUN1). A welding state of the robot gun (GUN1) is checked by driving a welding relay (M13) through the welding finish relay (K100). Thereby, the robot gun is controlled smoothly.
Patent KR-20010055166-A (KR)
Inventor: PARK GEUN YONG
IPC: H05B6/64
Filed: 1999-12-09
Abstract: PURPOSE: A power cord installation structure of a microwave oven is provided to reduce a number of components and achieve an easier installation. CONSTITUTION: A hole is formed on a position corresponding to that of a rear surface panel(11). The second latch jaw member(30b) is formed on an upper end part of a fan motor cover(33). The second latch jaw member(30b) is inserted into the hole to perform a latching operation. An installation clamp(100) is integrally protruded from the fan motor cover(33). The installation clamp(100) is protruded to the outside through the through hole(101) which is formed on the position corresponding to the rear surface panel(11). The installation clamp(100) has a curved shape like a valley to accommodate a power cord(27). A fold part(102) is formed on a middle part of the curved portion of the installation clamp(100) and opens or shuts the pertinent installation clamp(100) to accommodate the power cord(27) thereinsdide. An end of the installation clamp(100) is inserted into an inside of the through hole(101) of the rear surface panel(11). A lock jaw(103) is protruded to fixedly maintain the accommodated condition of the power cord(27).
Patent KR-20000062224-A (KR)
IPC: B32B7/04
Filed: 1999-12-22
Abstract: 제 1 표면(20a)상의 전자부품을 장착하기 위한 오목영역(21a)과 제 2 표면(20b)상의 상기 오목영역(21a)에 대응하는 볼록영역(21b)을 구비하는 엠보스캐리어테이프가 개시된다.  볼록영역(21b)의 상부의 폭(L2)은 오목영역(21a)의 개구의 폭(L1)보다 길고, 오목영역(21a)의 개구의 폭(L1)은 저면에서의 폭(L3)보다 길다.  이러한 구조에 의해, 하방으로 돌출된 볼록영역(21b)을 갖는 엠보스캐리어테이프(20)가 수직으로 중첩되는 경우에, 상부 엠보스캐리어테이프(20)의 볼록영역(21b)이 하부 엠보스캐리어테이프의 오목영역(21a)으로 들어가지 않게 한다.
Patent KR-20010057842-A (KR)
Inventor: JANG RAE YEONG
IPC: C03C3/00
Filed: 1999-12-23
Abstract: PURPOSE: Provided is a production process of multifunctional bio-glass which uses natural minerals useful for human body like sericite or so on to produce bio-glass for multiple uses so that the bio-glass products are widely used in vessels for household and binders for medical use. CONSTITUTION: The production process of multifunctional bio-glass comprises the steps of: (i) mixing 95wt% of sericite, 2wt% of silicone dioxide, 0.5wt% of sodium oxide, 2wt% of calcium oxide and 0.5wt% of phosphoric acid(P2O3) in a stirrer; (ii) putting the mixture into a furnace, heating at 1400-1450deg.C for 24 hours, fusing and vitrificating; (iii) injecting the vitrificated materials into a frame, cooling slowly and molding a certain type of products; (iv) putting the products into a heat-treatment furnace, heating at 800deg.C for 3 hours, drawing them out and cooling slowly to improve durability; and (v) selecting the heat-treated bio-products and then packing them.
Patent KR-20010064454-A (KR)
Inventor: CHA DEOK SU
IPC: H02B1/00
Filed: 1999-12-29
Abstract: PURPOSE: The method for controlling automatic close-trip in fault section on distribution line is provided to shorten time to search fault sections and operate automatic close-trip efficiently checking large sections at once and checking small sections thereafter, during fault, by dividing distribution lines into large sections and small sections. CONSTITUTION: The central control center monitors line faults according to passing fault current using active element like circuit breaker and recloser on normal condition in the first stage. The second is to check a number of the counter of fault information stored in the pertinent switches outputting YES/NO information of fault detection to be able to know whether fault current flows into the respective auto-switches or not. The third is the stage to display the results on the screen, judging the fault occurred in between the switch to respond YES and the switch to respond NO against the above YES/NO information. The fourth is the stage to perform separating operation and switch-on operation of no-fault sections by judgment of operator. The last stage is to perform programs for distribution automation according to the stages in which the circuit breaker requests help from the distribution control room, in which the recloser accepts remote close operation, and to transmit to all no-fault sections except the fault section.
Patent KR-20010064508-A (KR)
Title: Hermetic rotary compressor
Inventor: HAN JEONG MIN
IPC: F04B39/00
Filed: 1999-12-29
Abstract: PURPOSE: A hermetic rotary compressor is provided to reduce noise in closing a refrigerant discharge port of a valve by forming a depressed portion depressed from a contact face as well as to reduce a contact area at a margin of the refrigerant discharge port with the valve. CONSTITUTION: A roller(35) connected to a rotor shaft(15) is contacted with inside of a cylinder(21) to be rotated in a circumferential direction of the cylinder when a rotor(13) and the rotor shaft are rotated. Refrigerant is sucked from an accumulator outside a casing(3) through a refrigerant suction port and then compressed in a compression space by rotation of the roller. If refrigerant pressure exceeds elasticity of a valve(48), the valve is rotated up and a refrigerant discharge port is isolated. A circular groove is formed at a margin of the refrigerant discharge port. The circular groove reduces a contact sectional area of the valve as well as forms a buffer space between itself and the valve. Therefore, a shock in operation of the valve is absorbed and noise is reduced.
Patent KR-20010065758-A (KR)
Inventor: JUNG JAE SIN
IPC: B60K15/00
Filed: 1999-12-30
Abstract: PURPOSE: An auxiliary fuel tank of a car is provided to secure a large amount of fuel, to improve performance of assembly by simplifying the structure, to provide convenience when fuel is supplied, and to reduce the volume of a canister. CONSTITUTION: An auxiliary fuel tank of the car includes a fuel tank(70), a fuel filler(80), an auxiliary fuel tank(84), an auxiliary tube(86) and a jet pump(78). The fuel tank is connected to an engine(60) of the car through a fuel supply tube(74) and a return tube(76). The fuel filler has an end connected to the fuel tank and the other end disposed at a side of a car body and bent downward to guide fuel to the fuel tank when fuel is supplied. The auxiliary fuel tank is connected to a side of an inclined surface of the fuel filler through an auxiliary fuel filler(80a). The auxiliary tube has an end disposed to the auxiliary fuel tank and the other end connected to a side of the return tube. The jet pump is mounted on the return tube at a portion where the auxiliary tube is connected. The jet pump jets fuel returning from the engine to the fuel tank by pressurizing and supplies fuel in the auxiliary fuel tank to the fuel tank by generating negative pressure to the auxiliary tube.
Patent KR-20010059788-A (KR)
Inventor: KIM CHUNG YEOL
IPC: B60R21/055
Filed: 1999-12-30
Abstract: PURPOSE: A converting device for an angle of a headrest is provided to prevent a head from being pulled back by converting an angle of a headrest for narrowing an interval between the headrest and the head in case of a rear-end collision. CONSTITUTION: An angle converting device for a headrest comprises: a stay(4) vertically installed in the lower side of a headrest; a housing(6) installed inside a seat back with the stay; an operating rod(8) horizontally inserted into the housing; an actuator rotating the operating rod; and a controlling device operating the actuator in case of a rear-end collision. The housing contains a hanging groove(16) for a hanging rod(14) of the stay and an insertion groove(18) for the operating rod. The controlling device consists of a rear impact sensor and a controller for a solenoid. Thus, in case of the rear-end collision, the operating rod is rotated by the actuator and the housing is rotated at a regular angle. Then, the headrest is rotated upward to narrow an interval with a head.
Patent KR-20010060074-A (KR)
Title: Dumping device for dump truck
Inventor: PARK JIN U
IPC: B60P1/00
Filed: 1999-12-31
Abstract: PURPOSE: A dumping device makes a tail gate automatically locked/released as a container lifts/descends and enables the container to automatically dump to side when the container is placed in a body. CONSTITUTION: A dumping device comprises multiple stoppers(1) and a locking device. The stoppers(1) are installed on the upper surface of a car body(B). The locking device locks a tail gate(T) being pressed by the stoppers(1) when a container(D) is placed in the body(B) and is released when the container(D) is lifted, the locking device is released. Therefore, the dumping device automatically locks or releases the tail gate(T) of a dump truck which cam dumps to three directions.
Patent KR-20010087444-A (KR)
Inventor: LEE JONG HYEON
IPC: H01L23/12
Filed: 1999-12-31
Abstract: PURPOSE: A stacked BLP package and a method for manufacturing the same are provided to emit efficiently the heat generated from a package by installing a heat-sink on a semiconductor chip. CONSTITUTION: A multitude of chip pad(21a) is adhered to a semiconductor chip(21). A lead frame(22) for forming a lower lead(22a) and an upper lead(22b) is installed on the chip pads(21a). The lead frame(22) is connected electrically with the semiconductor chip(21) by a metal wire(23). A molding portion(24) is formed to expose a bottom portion of the semiconductor chip(21), a bottom portion of the lower lead(22a), and an upper portion of the upper lead(22b). A solder ball(24) is adhered to a bottom portion of the lower lead(22a). An epoxy(26) is formed on upper lead(22b). A heat-sink(27) is adhered to a bottom portion of the semiconductor chip(21).
Patent KR-20000023711-A (KR)
Inventor: MOCHITA ISAO
IPC: B01D53/56
Filed: 1999-01-11
Abstract: PURPOSE: A removal method for nitric acid of exhaust gas is provided to efficiently remove nitrogen oxide of exhaust gas in a low temperature. CONSTITUTION: A removal method of nitric acid comprises the steps of closing an absorber(9) by opening an absorber(10) when nitric acid is not removed enough in a removal device(2) of nitric acid and also in a low temperature of exhaust gas while operating a boiler adding NH3 in NH3 supply line(11) and deriving exhaust gas to the removal device of nitric acid in a low temperature to remove nitric acid. When operating normally over 300°C of a temperature of exhaust gas, an operation is performed in the state of closing the absorber(10) as opening the absorber(9) because the nitric acid is removed due to function of the removal device(2) of nitric acid.
Patent KR-20000052659-A (KR)
Title: Combination absorbent article
Inventor: MAYER KATHERINE LOUISE
IPC: A61F13/472
Filed: 1997-10-03
Abstract: PURPOSE: A combination absorbent article, having at least a first absorbent article and a second absorbent article releasably secured together only by mechanical securement means, is provided. CONSTITUTION: A combination absorbent article having a first absorbent article comprising a first surface a second surface, and a periphery comprising a pair of first longitudinal edges and a pair of first end edges, and a second absorbent article comprising a first surface, a second surface and a periphery comprising a pair of second longitudinal edges and a pair of second end edges, characterized in that the first longitudinal edges of the first absorbent article and the second longitudinal edges of the second absorbent article are releasably secured together only by mechanical securement means, flaps.
Patent KR-20000069200-A (KR)
IPC: H04N5/44
Filed: 1998-09-30
Abstract: 여러 대의 수신기가 있는 다이버시티-수신상태에서 최상의 수신상태를 지닌 텔레비전 수상기 선택을 위해서는 수신 시그널의 평가를 위한 기준이 필요하다.  텔레비전 영상의 품질을 결정하기 위해서 수평-동기 펄스에 이어 나타나는 방해 펄스를 한 주사선(strip) 내에서 검출하고 그 파라미터에 따라 평가한다.  본 발명은 텔레비전 수상기, 비디오 리코더, 다이버시티-수신 상태, 특히 이동용 수신장비들에 적합하다.
Patent KR-20000057435-A (KR)
Title: Gene trap construct for identification and isolation of genes
Inventor: VON MELCHNER HARALD
IPC: C12Q1/6897
Filed: 1997-12-05
Abstract: PURPOSE: A gene trap construct comprises a first reporter gene which activates other second report gene by self activating. The construct is used for identification or isolation of transient genes such as a programmed cell death gene, a DNA repair gene, a differentiation specific gene and the like. CONSTITUTION: A gene trap construct contains a first reporter gene, which, after activation, can activate a second reporter gene, and the gene trap construct is used for identification and/or isolation of genes, in particular transiently expressed genes. A cell, preferably a mammal cell, containing the above-mentioned gene trap construct is provided which is used for identification and/or isolation of genes, in particular transient genes. In addition, a vector containing the above mentioned gene trap construction, as well as a kit for identifying and/or isolating genes, in particular transient genes, which contains at least the above-mentioned gene trap construct or the above-mentioned vector are provided. Further, a method for the identification and/or isolation of genes, in particular transient genes is provided.
Patent KR-20000057654-A (KR)
Title: Isolation of novolak resin without high temperature distillation and photoresist composition therefrom
Inventor: RAHMAN M DALIL
IPC: G03F7/023
Filed: 1997-12-16
Abstract: PURPOSE: A process for fractionation of a novolak resin into different molecular weight fractions useful for high performance light-sensitive photoresist compositions, and a process for making a such a light-sensitive composition useful as a positive-working photoresist are provided. CONSTITUTION: A water insoluble, aqueous alkali soluble novolak resins fractions having consistent molecular weight and superior performance in a photoresist composition, is produced by fractionating novolak resins according to molecular weight. Also provided is a method for producing a photoresist composition from such a novolak resin and for producing semiconductor devices using such a photoresist composition.
Patent KR-20000070149-A (KR)
IPC: A61P25/30
Filed: 1998-01-13
Abstract: 본 발명은  하기 화학식 I의 16-히드록시-11-(치환 페닐)-에스트라-4,9-디엔 유도체 또는 이의 약학적 허용염이나 용매화물, 이의 제조 방법, 이를 함유하는 약학 제제 및 의학 치료, 특히 글리코코르티코이드 의존성 질병 또는 증상의 치료 또는 예방에 있어서 이의 용도에 관한 것이다. 
     화학식 I 
     
       
     
     상기 식에서, 
     R 1 은 C 1-6 알킬, C 3-6 시클로알킬, C 1-6 알콕시, 트리플레이트, 피리딜 또는 페닐이고, 여기서 페닐 부분은 임의적으로 시아노, 할로겐 및 C 1-4 알킬에서 선택된 1 이상의 치환체로 치환되며; 
     R 2 은 수소, C 1-6 알킬, 1-옥소-C 1-6 알킬 또는 카르복시-1-옥소-C 1-6 알킬이고; 
     R 3 은 수소, 할로겐 또는, C 1-6 알콕시 및 할로겐에서 선택된 1 이상의 치환체로 임의적으로 치환된 C 1-6 알킬이며; 
     R 4 는 수소, C 1-6 알킬, 1-옥소-C 1-6 알킬 또는 카르복시-1-옥소-C 1-6 알킬이고; 
     X는 (H, OH), O 또는 NOH이다.
Patent KR-20000070257-A (KR)
Title: 가변 팽창을 갖는 에어백 모듈
IPC: B60R21/16
Filed: 1998-01-15
Abstract: 에어백 모듈(10)은 에어백(27) 및 상기 에어백(27)을 팽창시키기 위한 가스를 방출시키도록 작동되는 팽창기(30)를 포함한다. 상기 팽창기(30)는 팽창기 가스가 통하여 방출되는 적어도 하나의 방출구(32)를 구비한다. 하우징(20)은 상기 팽창기(30)의 방출구(32)에 인접한 벽(14)을 구비하고 적어도 하나의 통기 개구부(21)를 포함한다. 또한, 상기 모듈(10)은 상기 통기 개구부(21)와 정렬될 수 있는 이동부재 (50)를 포함한다. 상기 이동부재(50)는 에어백(27)내에 방출되고 하우징(20)의 통기 개구부(21)를 통하여 외부로 배출되는 팽창기 가스량을 제어하기 위하여 팽창기 작동시 일정 시각에 통기 개구부(21)를 개방 및 밀폐토록 통기 개구부(21)에 연동되어 이동된다. 부품(80)이 팽창기 작동시 일정 시각에 통기 개구부(21)에 대하여 이동부재(50)를 이동시키도록 팽창기 작동중 작동될 수 있다.
Patent KR-20000070359-A (KR)
IPC: A61P43/00
Filed: 1998-01-21
Abstract: 본 발명은 의학적 치료(예: 진균성 감염 또는 암의 치료)에 사용하기 위한 일반식 I의 토포이소머라제 독성제 또는 이의 약제학적으로 허용되는 염을 제공한다. 
     화학식 I 
     
       
     
     상기식에서, 
     Ar은 아릴 또는 질소-, 황- 또는 산소-함유 헤테로방향족 그룹이고; 
     X는 H, CN, CHO, OH, 아세틸, CF 3 , O(C 1 -C 4 )알킬, NO 2 , NH 2 , 할로겐 또는 할로(C 1 -C 4 )알킬이고; 
     각각의 Y는 H, (C 1 -C 4 )알킬 또는 아르알킬이고; 
     Y'는 페닐 또는 메톡시페닐이고; 
     각각의 Z는 개별적으로 H, (C 1 -C 4 )알킬, 할로겐 또는 할로(C 1 -C 4 )알킬이고; 
     n은 0 또는 1이다. 
     또한 본 발명은 신규한 화학식 I의 화합물, 화학식 I의 화합물을 포함하는 약제학적 조성물 및 하나 이상의 화학식 I의 화합물을 투여함에 의해 진균성 감염 또는 암의 치료를 포함하는 치료학적 방법을 제공한다.
Patent KR-20000070918-A (KR)
IPC: H04W88/02
Filed: 1998-02-11
Abstract: A portable communications device and accessory system which provides full-duplex asynchronous communications between a portable communication device and external accessories over a synchronous digital interface. The system includes a digital signal processor for generating a first synchronous digital voice signal, a UART for generating a first asynchronous data signal, and a microprocessor for generating a synchronous control command signal. The system further includes a first multiplexer for multiplexing the first synchronous digital voice signal and the first asynchronous data signal and the synchronous control command signal onto an interface line. The interface line couples the communication device to the at least one external accessory. A second multiplexer is coupled to the interface line, for routing the first synchronous digital voice signal and the synchronous control command signal to the at least one synchronous internal device, and for routing the first asynchronous data signal to the asynchronous internal device.
Patent KR-20000075650-A (KR)
Title: 네트워크 환경에서 신규의 비밀 무작위 숫자의 운영과 이용에대한 시스템
IPC: H04L9/30
Filed: 1998-12-03
Abstract: EI-가말 알고리즘을 채용한 공개키 암호법에서, 서버에서 비밀 신규 무작위 숫자들이 발생되며, 사용자 각각의 통과구 혹은 생체측정 정보(지문, 성문, 망막 스캔, 혹은 안면 스캔)를 해시하여 결정된 개별 사용자 식별키를 사용하여 대칭형 알고리즘으로 암호화되는 사용자의 비공개키는 서버에 액세스 가능한 기억장치 내에 유지되며, 신규 무작위 숫자 및 암호화된 비공개키는 필요할 때, 보안되지 않은 네트워크를 통해 사용자 장비로 전송된다.  침입자가 무작위 숫자를 발견하거나 이전에 사용된 무작위 숫자를 대량 재연 침입으로 채용하는 것을 방지하기 위해서, 서버에 사용자를 인증하면서 서버로부터 사용자 장비에 적어도 하나의 비밀 신규 무작위 숫자를 전달하는 질의응답 프로토콜 교환이 사용된다.  이러한 교환에서, 문서에 서명할 때 사용하기 위해 사용자에게 분배될 제1 무작위 숫자 및 질의응답 프로토콜의 일부로서 제1 및 제2 무작위 숫자의 해시의 서명을 형성할 때 사용자에 의해 사용하게 되는 제2 무작위 숫자는 신규값, 및 제1 및 제2 무작위 숫자와 신규값의 해시에 대해 서버에 의한 서명과 함께 암호화된 형태로 사용자 장비에 공급된다.
Patent KR-20010006103-A (KR)
Title: 폴리카보네이트 초기중합체의 제조 방법 및 고분자량 폴리카보네이트의 제조 방법
IPC: C08G64/20
Filed: 1998-04-07
Abstract: 본 발명은 물과 용매의 혼합물을 사용하거나, 가열하면서 전단력을 적용하거나, 또는 전단력을 적용하여 초기중합체를 배향시킨 후 온도를 유지하여 폴리카보네이트 초기중합체를 결정화하는 방법에 관한 것이다.  고분자량 폴리카보네이트는 결정화된 초기중합체를 고체 상태 반응시킴에 의해 수득된다.