baber/WOPTO huggingface dataset:
Patent KR-20000076303-A (KR)
Title: 2-Alkyl-19-Nor-Vitamin D Compounds
IPC: A61P19/10
Filed: 1998-02-11
Abstract: This invention provides a novel class of vitamin D related compounds, namely, the 2-alkyl-19-nor-vitamin D derivatives, as well as a general method for their chemical synthesis. The compounds have the formula: where Y1 and Y2, which may be the same or different, are each selected from the group consisting of hydrogen and a hydroxy-protecting group, R6 is selected from the group consisting of alkyl, hydroxyalkyl and fluoroalkyl, and where the group R represents any of the typical side chains known for vitamin D type compounds. These 2-substituted compounds are characterized by low intestinal calcium transport activity and high bone calcium mobilization activity resulting in novel therapeutic agents for the treatment of diseases where bone formation is desired, particularly low bone turnover osteoporosis. These compounds also exhibit pronounced activity in arresting the proliferation of undifferentiated cells and inducing their differentiation to the monocyte thus evidencing use as anti-cancer agents and for the treatment of diseases such as psoriasis.
Patent KR-20010006285-A (KR)
Title: 인후 완화 조성물
IPC: A61K9/127
Filed: 1998-04-14
Abstract: 본 발명은 60 내지 95%의 식용 외피와 5 내지 40%의 수성 내용물을 포함하며, 8 내지 95%의 물 및 내용물 중에 분산된 베지클 내에 인후 경감제를 캡슐화한 베지클 형성제 0.001 내지 10%를 함유하는 내용물을 함유하는 인후 드롭스에 관련된 것이다.  인후 드롭스는 인후 또는 비강 자극에 대한 지속적 완화를 제공한다.
Patent KR-20010068483-A (KR)
Title: A vibrator for recieving signal of personal digital assistant
Inventor: OH HWAN
IPC: H04B1/38
Filed: 2000-01-06
Abstract: PURPOSE: A vibration device for a receiving signal of a mobile communication terminal is provided to mount a fixer in a cylinder type vibration motor. CONSTITUTION: A cylinder case(310) is withdrawn from a cylinder center, and has a hollow tube type-mounting projector(316) with an axis hole(318) in a length direction. A cylinder type fixer(330) is mounted on an outer peripheral of the mounting projector(316) of the cylinder case(310). A ring type elastic pad member(344) is mounted on both ends of the fixer(330). An unbalance weight is mounted on an end exposed outward the cylinder case(310) of a rotation axis inserted into the axis hole(318) of the mounting projector(316).
Patent KR-20010014441-A (KR)
Inventor: JEFFREY R HAMILTON
IPC: A45F3/14
Filed: 2000-01-13
Abstract: PURPOSE: A novel waist-belt and buckle assembly useable for mounting a pack on a person, preferably on a back side portion of a human torso, having two strap portions extendable forwardly from each side portion of the pack toward a front side portion of the person where the four strap portions are fastenable, for example with a buckle, and preferably with a buckle having discrete accommodations for each strap portion. CONSTITUTION: A buckle (120) having a substantially individual housing parts for string parts (10, 20, 30 and 40) has two strings stretchable forward from side parts of the packing bag (110) to the front of the user with four string parts (10, 20, 30 and 40) fixable thereon. The string parts (10, 20, 30 and 40) can be individually adjusted or loosened preferably by moving an angle part of the buckle to be separated from his body without loosening other string parts.
Patent KR-20010077073-A (KR)
Title: C-2,6,9 substituted isopropylpurine derivatives and a preparation thereof
Inventor: CHO JEONG HYEOK
IPC: C07D473/16
Filed: 2000-01-31
Abstract: PURPOSE: Provided are novel adenine compounds which inhibit the cyclin dependent kinase (CDK), specifically, isopropylpurine derivatives with the substitution at C-2,6,9 positions and their preparation method. These adenine compounds are more effective than existing olomousine and roscovitine in CDK inhibition. CONSTITUTION: The compounds are represented by chemical formula 1, wherein R1 is piperidino, piperazino, pyrrolidino or thiomorpholino group which is substituted by one or more groups selected from hydroxyalkyl amino, hydroxy, hydroxyalkyl, carboxylic acid, aldehyde and oxim group. Most preferably R1 is hydroxyalkylamino or 4-carboxy-2-hydroxymethyl pyrrolidino group. The preparation process includes the steps of: reacting 2,6-dichloropurine with 3-chloroaniline in butanol solution; reacting the resultant compound with isopropyl halide in the presence of strong base and reacting the product, in 4:1 mixed solvent of n-butanol and DMSO, with piperidine, piperazino, pyrrolidino or thiomorpholino group which is substituted by one or more group selected from hydroxyalkyl amino, hydroxy, hydroxyalkyl, carboxylic acid, aldehyde and oxim group.
Patent KR-20010077601-A (KR)
Title: Latency control circuit in memory device using delay locked loop
Inventor: CHOI WON JAE
IPC: G11C8/00
Filed: 2000-02-03
Abstract: PURPOSE: A circuit for controlling latency of a semiconductor device is to exactly output data according to the latency using a DLL(delay locked loop) clock signal locked with the first and second edge of an outer clock signal. CONSTITUTION: A delaying portion(100) inputs a signal for informing a starting time and an ending time to delay output of data, when reading the data at an outside. The delaying portion outputs the delayed signal as a starting/ending signal. A DDL(130) delays an outer clock signal for a desired time and generates the first and second delay clock signal locked with the first and second edge of the outer clock signal. A latency controlling portion(120) delays the starting/ending signal responding to the first and second delaying clock signal output from the DDL. An output control portion(140) generates an output buffer control signal for outputting the data responding to the first and second delay clock signal and the latency signal generated from the latency controlling portion.
Patent KR-20010082877-A (KR)
Title: Plasma/Catalyst System for Reduction of Nox in Diesel Engine Exhaust Gas
Inventor: CHUN BAE HYEOCK
IPC: F01N3/10
Filed: 2000-02-22
Abstract: PURPOSE: A plasma catalytic system is provided to efficiently remove NOx from exhaust gas discharged from a diesel engine by using a plasma reactor and a catalytic reactor. CONSTITUTION: A plasma catalytic system is comprised of a plasma reactor(11) supplied with DC pulse power and a catalytic reactor(12) filled with Ag and Al2O3. Exhaust gas generated from a diesel engine is treated by sequentially passing through the plasma reactor and the catalytic reactor. The plasma reactor consists of an anode and a cathode and supplies energy of 10-100J/L per unit flux of exhaust gas. The catalytic reactor is filled with a catalyst prepared by impregnating AgNO3 aqueous solution in gamma-Al2O3. The plasma reactor is operated in a normal pressure while the catalytic reactor is operated at 200-450deg.C of temperature. In the plasma reactor, NO in the exhaust gas is converted to NO2. In the catalytic reactor, NO2 is reduced to N2. Therefore, NOx in the exhaust gas is reduced.
Patent KR-20010087664-A (KR)
Title: conductive metal coating method and apparatus thereof
Inventor: KIM DO GON
IPC: C23C14/34
Filed: 2000-03-08
Abstract: PURPOSE: A method for coating an electromagnetic wave shielding film and an apparatus thereof is provided to gain a stable and excellent electromagnetic wave shielding effect in a wide frequency range by composing an electromagnetic wave shielding film of double metal film consist of a copper and a stainless film. CONSTITUTION: A spin jig(3) is installed on the inside of a chamber(1). A plurality of objects to be coated(2) is mounted on the spin jig(3). A jig spin unit(4) is installed on the rear of the spin jig(3) and rotates the spin jig(3) in a constant speed. A jig shifting unit(5) is installed on the lower side of the spin jig(3) and puts in or takes out the spin jig(3) into the inside of the chamber(1). A plurality of targets(6a,6b) is arranged on the inside of the chamber(1) to become a cathode. A controller(7) is installed on the one side of the chamber(1), supplies a power source, and controls the operation of a coating apparatus. A jig conveyer(8) is installed on an external side of the chamber(1) and puts the spin jig(3) thereon.
Patent KR-20000062814-A (KR)
Title: 반도체 메모리 장치 및 반도체 메모리 장치 탑재 시스템
IPC: G11C16/06
Filed: 2000-03-10
Abstract: 본 발명은, 불휘발성 메모리를 포함하는 퓨즈를 사용하지 않고 용장 구제를 가능하게 하고, 및 불휘발성 메모리를 포함하지 않고 회로 형성 영역 이외에 형성된 퓨즈에 의해 용장 구제를 가능하게 한 반도체 메모리 장치 및 반도체 메모리 탑재 시스템을 제공하는 것을 과제로 한다. 
     본 발명은, 불휘발성의 정규의 메모리 어레이(1)에서의 불량 메모리셀의 불량 정보를 불휘발성의 메모리셀로 이루어지는 프로그램 어레이(7)에 불휘발성으로 기억하여 구성된다.
Patent KR-20000076808-A (KR)
Title: 반도체 장치의 제조 방법
IPC: H01L21/3205
Filed: 2000-03-10
Abstract: 배리어성 및 균일성 좋게 배선간 용량 및 배선 저항을 저감시키는 배선을 형성한다. 
     절연막(1) 상에 선택적으로 에칭 마스크로서 Si 금속층(2)을 형성하고, 절연막(1)을 Si 금속층(2)을 이용하여 선택적으로 제거하여 홈 패턴(4)을 형성하고, Si 금속층(2)을 잔존시킨 상태에서 홈 패턴 내에 Cu 금속층(6)을 형성하고, Si 금속층(2)과 Cu 금속층(6) 상에, 질소분위기 내에서의 열처리에 따라 Cu와 에칭 마스크에서 다른 공정 반응을 나타내는 배리어 부재로서 Ti 금속층(7)을 형성하고, Ti 금속층(7)을 질소 분위기에서 열처리함으로써 Cu 금속층(6) 상의 Ti 금속층(7)을 선택적으로 질화하고, Si 금속층(2) 상의 Ti 금속층(7)을 선택적으로 제거하여 Cu 금속층(6) 상에 선택적으로 배리어층으로서 TiN 막(9)을 형성한다.
Patent KR-20010091308-A (KR)
Inventor: CHOI JIN HO
IPC: H03L7/20
Filed: 2000-03-14
Abstract: PURPOSE: A discrete time oscillator is provided to output desired clock frequencies by demultiplying multi-phase clock inputs of an analog phase locked loop into a fixed point demultiplication ratio. CONSTITUTION: A crystal oscillator(X-Tal) outputs an oscillation frequency by an internal resonance. An analog phase locked loop(210) is synchronized with an oscillation frequency of the crystal oscillator(X-Tal) in order to output a constant clock frequency signal(fvco). A multitude of discrete time oscillation portion(220a-220k) demultiplies selectively the frequency output from the analog phase locked loop(210) according to a demultiplication ratio decided by internal frequency demultiplication signals(DTO_DIV1 to DTO_DIVk) and outputs various discrete time oscillation clock signals(DTO_CLK1 to DTO_CLKk).
Patent KR-20010093531-A (KR)
Inventor: CHO HONG RAE
IPC: F01M5/00
Filed: 2000-03-29
Abstract: PURPOSE: A motor vehicle oil cooler is provided, in which engine oil cooler and transmission oil cooler are integrated into a single unit, to thereby allow oil cooler unit to be mounted in a convenient manner. CONSTITUTION: An engine oil cooler(1) including a circulation path formed by stacked plates(2), radiation fins(3) arranged between stacked plates, and an inlet port(4) and an outlet port(5) formed at both sides of the circulation path, is connected to an engine oil circulation system. A transmission oil cooler(6) including a circulation path formed by stacked plates(7), radiation fins(8) arranged between stacked plates, and an inlet port(9) and an outlet port(10) formed at both sides of the circulation path, is connected to an automatic transmission oil circulation system. The engine oil cooler and the transmission oil cooler are integrated into a single unit, and a partition(11) is installed between the engine oil cooler and the transmission oil cooler.
Patent KR-20010006963-A (KR)
Inventor: IIZUKA YOICHI
IPC: H03K19/0175
Filed: 2000-04-07
Abstract: PURPOSE: To provide a buffer circuit which does not have the constraint of level control or an increase of power consumption, does not need complicated capacity design and can accelerate signal transition without providing a resistance bringing about an increase of a chip area. CONSTITUTION: A tri-state buffer circuit 10 has a high impedance function mode and one-shot pulse output controlling means which drives potential that is opposite to currently driving buffer output potential to perform buffer output for a moment before the circuit enters the high impedance function mode and consists of an OR gate 12 and an inverter 13.
Patent KR-20010096927-A (KR)
Inventor: CHOI YUN
IPC: G06Q40/04
Filed: 2000-04-19
Abstract: 본 발명은 어음교환처리 방법에 관한 것이다. 본 발명에 따르면, 영업점에서 수납한 서울지역 상호교환지역내의 교환대상 어음정보와 타행 및 지방영업점에서 수납한 서울지역 상호교환지역 내의 교환대상 어음정보를 실물이 아닌 전문으로 금융결재원과 송수신한다. 그 결과, 어음의 지출작업, 수입작업 및 자금조정에 관한 업무가 보다 신속하고 효율적으로 이루어지게 된다.
Patent KR-20000071758-A (KR)
Title: 진동 컨베어
IPC: B65G27/12
Filed: 2000-04-20
Abstract: 본 발명은 진동컨베어에 관한 것이다. 
     본 발명은 소음을 적게 하고 저비용으로 가속도를 높이고, 간단히 변경할 수 있는 진동컨베어를 제공하는 것을 과제로 개발된 것으로, 그 해결수단으로는 지지체에 의해 수평방향으로 진동가능하게 지지된 트랩과, 당해 트랩을 물체의 이송방향으로는 작은 가속도로, 당해 이송방향과는 역방향으로는 큰 가속도로 진동시키는 가진력를 발생시키는 가진기구와로 이루어지는 진동컨베어에 있어서, 상기 가진기구는 프로그램될 수 있게 제어가능한 회전구동원과, 당해 회전구동원의 회전구동력을 왕복직선구동력으로 변환하는 크랭크기구를 구비하고, 상기 회전구동원의 제어에 의해 상기 크랭크기구의 왕복직선운동의 가속도, 감속도를 임의로 조정가능하게 했다.
Patent KR-20000077120-A (KR)
IPC: G10L13/00
Filed: 2000-05-01
Abstract: 본 발명은, 사용자가 널리 공지된 발음을 갖는 평범한 단어와 오디오 신호에 근거하여, 단어 및 그 일부를 발음하는 방식을 결정할 수 있도록 하는 방법 및 사용자 인터페이스에 관한 것이다. 사용자는 발음을 설정하거나 수정하기를 원하는 단어를 입력하거나 선택한다. 단어에서 주어진 문자나 문자의 조합의 발음을 설정하기 위해, 사용자는 문자를 선택하며, 평범한 단어의 리스트를 제공받고, 이 단어의 발음 또는 그 일부의 발음은 선택된 문자의 가능한 발음으로 충분히 이상적으로 된다. 샘플의 리스트, 즉 평범한 단어들은 통상적인 사용량에 대한 상호관계의 빈도, 즉 디폴트 샘플 단어로써 지정되는 가장 평범한 단어에 근거하여 순위가 정해지며, 사용자는 가장 쉽게 선택되는 리스트내의 단어의 서브세트를 먼저 제공받는다. 또한, 본 발명은 문맥상의 차이점이나 개인의 선호도를 허용하기 위해 동일한 단어에 대한 몇 가지의 다른 발음을 사전에 기억시킬 수 있도록 한다.
Patent KR-20010104563-A (KR)
Inventor: KWON OH MAN
Filed: 2000-05-15
Abstract: 본 발명은 초음파 전기 보일러에 관한 것으로, 초음파를 생성시켜 초음파에 의한 불분자의 진동과 와류손의 열에너지로의 변환을 이용하여 가열조 속에 있는 물분자를 직접 가열시킴에 의해 소요열량을 대폭 줄일 수 있고 빠른 시간 내 소정의 원하는 온수 및 난방용 증기를 얻을 수 있으며, 장치의 규모가 소형이어서 제작 및 설치가 용이하며 소음이 없으므로 실내에 비치할 경우 매우 경제적이고 효과적인 보일러이다.
Patent KR-20010106642-A (KR)
Inventor: PARK SEONG DON
IPC: H05B3/20
Filed: 2000-05-22
Abstract: 본 발명은 박막 발열체의 제조방법 및 이것을 이용한 발열장치에 관한 것이다. 본 발명의 제조방법은 발열부를 제외한 소재의 표면에 내열/유성 잉크를 마스킹하여 건조하는 단계와, 예열되어 있는 소재의 표면에 청정 공기를 캐리어로 사용하여 박막 발열체용 도전성 조성물을 분무하여 발열체용 도전성 박막을 형성하는 단계와, 소재로부터 잉크를 수세척에 의해 제거하는 단계와, 발열체용 도전성 박막에 전극용 도전성 박막을 프린트하여 건조하는 단계와, 소재를 소성하는 단계를 포함한다. 또한, 본 발명의 발열장치는 양립하는 한쌍의 프레임과, 프레임의 일측에 소정의 간격을 두고 수평하게 장착되는 다수의 평판형 기판과, 기판의 표면에 본 발명의 제조방법에 의해 형성되는 박막 발열체로 이루어지는 발열부와, 프레임의 일측에 설치되어 발열부에 대하여 공기를 송풍하는 송풍수단을 구비한다.
Patent KR-20010107234-A (KR)
Inventor: SON SANG UK
IPC: H01L21/68
Filed: 2000-05-26
Abstract: 본 발명은 반도체 제조설비에 적용되는 진공 척 시스템에 관한 것으로, 특히 반도체 제조설비에서 다수 형성된 진공 홀로부터 가해지는 진공의 압력을 이용하여 진공 척에 웨이퍼를 안정적으로 안착시키고, 웨이퍼 후면에 이물질이 묻어있거나 스크래치 등으로 인한 웨이퍼 손실을 줄이는 진공 척 구조에 관한 것이다. 
     본 발명에 따른 진공 척 구조는; 상부에 원판형의 헤드가 형성되고, 하부에 상기 원판형의 헤드를 지지하는 기둥이 형성되는 진공 척과; 상기 진공 척 내부를 관통하는 각각의 진공 라인을 통해 진공을 공급하는 X개의 진공 라인들과; 상기 X개의 진공 라인 각각과 연결되며, 상기 진공 척 상부의 소정 위치에 서로 간격지게 형성되어 각 진공 홀을 통한 진공 압력에 의해 웨이퍼를 상기 진공 척 상부에 안착시키는 X개의 진공 홀들과; 상기 진공 척 상부에 웨이퍼와 접촉되는 곳으로, 각각의 진공 홀을 통한 진공영역들의 경계가 되는 X(여기서, X는 1 보다 큰 임의 정수)개의 진공 실들;로 이루어짐을 진다.
Patent KR-20010109704-A (KR)
Inventor: BAEK EU GENE
IPC: G06F3/0354
Filed: 2000-06-02
Abstract: 본 발명은 본연의 마우스기능 이외에 마우스패드의 특정 로고와 동조될 때에 주파수를 발생하고 IP주소 또는 URL을 PC로 보내어 인터넷 사이트에 접속하는 기능을 갖는 마우스와 마우스패드 및 이를 이용한 인터넷 접속방법에 관한 것이다. 본 발명에 따른 인터넷 접속기능을 갖는 마우스는 마우스기능을 하는 마우스부, 인터넷에 접속할 수 있는 인터넷접속부, 마우스부와 인터넷접속부를 선택하는 인터넷접속 버튼, 마우스부와 인터넷접속부를 제어하는 마이크로프로세서로 구성된다. 본 발명에 따른 인터넷 사이트 접속방법은, 마우스가 마우스패드 위를 움직이다가 특정 로고의 위치에 동조되어 공진이 일어나는 단계, 공진주파수에 따라 마우스의 발진부가 발진하여 주파수를 출력하는 단계, 발진부의 출력주파수를 카운트하는 단계, 카운트된 주파수를 고유코드로 매핑하는 단계, 인터넷접속 버튼에 의해 접속이 선택되지 않을 때에는 다시 처음으로 돌아가고, 접속선택이 된 경우에 고유코드를 IP주소로 변환하는 단계, PC에 설치된 브라우저를 실행하는 단계, IP주소를 PC로 전송하여 브라우저의 주소 입력창에 복사하는 단계, IP주소에 의해 해당 인터넷 사이트가 열리는 단계로 구성된다.
Patent KR-20020001339-A (KR)
Title: Eliminating method of particle source generated during semiconductor manufacturing process
Inventor: HWANG YEONG SEON
IPC: H01L21/027
Filed: 2000-06-28
Abstract: PURPOSE: A method for eliminating a contamination source generated in a process for manufacturing a semiconductor device is provided to prevent a good die from being contaminated by movement of the contamination source, by effectively eliminating the contamination source. CONSTITUTION: A reticle(60) having a separate open region(66) for eliminating a defect is prepared. Photoresist is applied on a semiconductor wafer having a lower structure. An exposure is performed while the wafer and the reticle are aligned so that the open region corresponds to a contamination generating region on the wafer. The exposed photoresist is developed to form a photoresist pattern. Materials in the contamination generating region are eliminated by using the photoresist pattern as an etching mask.
Patent KR-20010049656-A (KR)
Inventor: MATSUURA YOSHIHIRO
IPC: H01L23/498
Filed: 2000-06-28
Abstract: PURPOSE: To provide a highly reliable semiconductor device in which a semiconductor chip and wiring formed on the substrate of a package are insulated surely and provide a method of its manufacturing. CONSTITUTION: An insulator layer 3 is formed beforehand on the backside of a semiconductor chip 2 in advance of the mounting. If the insulator layer 3 is formed by adhering an insulating film, a prescribed thickness is obtained surely (that is, the insulation is assured), and besides, the formation is easy. The semiconductor chip 2, on which the insulator layer 3 has been formed, is fixed with an insulating adhesive (adhesive layer 4) on a package substrate 5 on which surface wiring 7 has been arranged. Insulation between the semiconductor chip 2 and the surface wiring 7 is secured surely by the insulating layer 3, constituted by the insulating film. Consequently, adhesive (adhesive layer 4) of absolute minimum amount is adequate. Also, since the pressure in the bonding process can be raised, bonding is assured. The surface unevenness on the package substrate 5 caused by the presence of the surface wiring 7 is buried by the adhesive, and any clearance will not be left.
Patent KR-20020004370-A (KR)
Title: A can having a handle
Inventor: WOO SEUNG YEOP
IPC: B65D17/00
Filed: 2000-07-05
Abstract: PURPOSE: A can with a handle is provided to improve the convenience of use as well as the convenience of transportation thereof. CONSTITUTION: The can(1) is detachably coupled with a handle(2) made of synthetic resin. The handle comprises an upper rim and a lower rim designed into a ring form to be fitted in a groove(3,4) formed along the upper end and the lower end of the can during the manufacture of the can. The upper rim and the lower rim are spaced from each other in conforming to the length between the upper end and the lower end of the can. The handle also comprises a vertical rim(7) for vertically connecting the upper rim and the lower rim.
Patent KR-20020009644-A (KR)
Title: Gas Extraction Apparatus for Analyzing Transformer Insulating Oil
Inventor: CHOI YONG DEOK
IPC: G01N1/22
Filed: 2000-07-26
Abstract: PURPOSE: A device for abstracting gas to analyze insulating oil in a transformer is provided to exactly measure gas contained in the gas and to reduce a measuring cost by simplifying analyzing system while improving inspection efficiency. CONSTITUTION: A gas abstracting device for analyzing insulating oil of a transformer comprises a gas abstracting unit(10); a vacuum gauge(12); a collecting flask(14); a mercury vessel(16); a gas measuring burette(18); a reference column(20); a measuring mercury vessel(22); an injecting valve(40) mounted on an upper portion of the gas abstracting unit; a first vacuum valve(42) connecting a first vacuum pump to a lower end of the gas abstracting unit; a second vacuum valve(44) engaged with a lower end of the collecting flask; a discharge valve(46) discharging sampling fluid; a first vacuum/air controlling valve(48) connecting a vacuum pump to an upper portion of the mercury vessel; a second opening valve(54) combining the gas measuring burette into the mercury vessel; a third opening valve(56); and a 3-way opening valve(58) connecting the gas measuring butter to a gas chromatography deice.
Patent KR-20020011790-A (KR)
Title: METHOD OF ENCIPHERING COMMUNICATION USING VoIP SERVER AND SYSTEM THEREOF
Inventor: JUNG YONG SIK
IPC: H04K1/00
Filed: 2000-08-04
Abstract: PURPOSE: A method and a system for performing secure communication using a VoIP(Voice over IP) server are provided to pass encoded voice data between communication devices allocated with IP addresses for secure modes by the VoIP server, so as to maintain end-to-end secure services. CONSTITUTION: A secure communication system decides whether communication between a wireless secure terminal(A) and a wireless secure terminal(B) is secure communication(S100). If not, the system performs a normal call(S106). If the communication is the secure communication, the system connects the A to a VoIP(Voice over IP) server through a mobile communication network(S101). The VoIP server allocates an optional IP address to the A(S102). The VoIP server allocates an optional IP address to the B(S103). The VoIP server passes voice data between the A and the B(S104). A secure call is carried out between the A and the B(S105).
Patent KR-20020013264-A (KR)
Title: Overhead message update with decentralized control
Inventor: GROVE MATTHEW S
IPC: H04B7/26
Filed: 2000-08-14
Abstract: PURPOSE: An overhead message update by distributed control is provided to minimize power consumption and save a bandwidth by performing a communication of an overhead message in a wireless communication system for providing an access as to a distributed network. CONSTITUTION: An overhead message is changed in a BS(Base Station)(302). A signature about the changed overhead message is generated in the BS(304). An MU(Mobile Unit) wakes up and listens(306). The BS transmits the signature to the MU(308). The MU receives the signature(310). The MU retrieves a previous signature from a memory(312). The MU compares the received signature with the previous signature(312). If the received signature is different from the previous signature, the MU maintains the wake state, and listens for receiving a message(316). The MU changes an operation parameter for efficiently communicating with a system.
Patent KR-20020013669-A (KR)
Title: System and method providing for information over network
Inventor: JUN HEON JOO
IPC: G06F17/00
Filed: 2000-08-14
Abstract: PURPOSE: A system and method for providing information by intermediating the data communication network are provided to raise members' interest about social issues through a game by enabling the members to take virtual measures against stress cause providers by personal members and groups, thereby the members to get rid of stress and receive accurate information. CONSTITUTION: Members(10) are equipped with the first to the Nth member terminal(12a-12n) and the first to the Nth member modem(14a-14n) capable of connecting the member terminals(12a-12n) to a data communication network(20). The data communication network(20) provides a communication path for performing a communication with an information providing system. A data providing server(30) provides all sorts of data files. A bank server(40) manages accounts of the members(10). An authorization server(50) is connected with the bank server(40). In addition, the authorization server(50) identifies the members(10) and estimates the members' credit rating. An operation unit(100) receives data from the data providing server(30) and stores the data in a database.
Patent KR-20020016664-A (KR)
Title: Image forming appratus capable of forming a duplex image on one sheet
Inventor: CHOI MIN HO
IPC: G03G15/00
Filed: 2000-08-26
Abstract: PURPOSE: An image reproducing device capable of duplex printing is provided to improve printing efficiency, to reduce manufacturing costs and to maximize operation efficiency of the device. CONSTITUTION: An image reproducing device capable of duplex printing includes a print paper cassette(10,20), a pick-up unit(120) for picking up the print paper, the first transfer means(113,115) for transferring the picked paper in one direction, and a development unit(130) for forming a toner image on the paper. The device further has a fixing unit(160) for fixing the toner image to an image, a duplex printing unit(180) for reintroducing the paper that passed the fixing unit to the development unit to form an image on the back side of the paper, and a discharge unit(170) for discharging the paper. The duplex printing unit is included inside the main body of the system to form a print paper circulation route through which the paper is reintroduced into the development unit.