baber/WOPTO huggingface dataset:
Patent KR-20000025991-A (KR)
Title: High strength wire rod having an excellent wire drawing property and method for manufacturing the same
Inventor: BAE CHEUL MIN
IPC: C21D8/06
Filed: 1998-10-16
Abstract: PURPOSE: High ductility and high strength wire rod which can be subjected to wire drawing without an intermediate heat treatment and a method for manufacturing it are provided. CONSTITUTION: Wire rod contains 0.4-0.65wt% of C; 0.1-1.0wt% of Si; 0.1-1.0wt% of Mn; less than 0.3 wt% of Cr, or less than 100ppm f B; and the balance substantially Fe and inevitable impurities, and furthermore contains less than 0.02wt% of at least one element selected from the group consisting of Ti, Nb and V. Further, its structure includes 10% or less fraction of primary ferrite and a remainder fraction of degenerated perlite. The method comprises following steps of hot rolling a billet constituted of the composite ion and continuous cooling at 10-30°C/sec of rate.
Patent KR-20000026417-A (KR)
Title: Method of reporting in cash register
Inventor: YOU CHUN KEUN
IPC: G07G1/00
Filed: 1998-10-20
Abstract: PURPOSE: A method of reporting in a cash register is provided to economize time and paper for reporting necessary data by reporting with a sheet mapping necessary contents for a user from all contents in various report. CONSTITUTION: Each serial number is given to each report and contents for reports when a cash register is manufactured. The numbers of the report and contents are selected in a program mode and stored in a memory region. If the selected report is provided in a check mode, the numbers of report and contents stored in the memory region are loaded, and then the corresponding report contents are printed in accordance with the numbers of report and contents.
Patent KR-20000031127-A (KR)
Title: Apparatus for cooling by using air
Inventor: PARK JUNG KEUK
IPC: F24F5/00
Filed: 1998-11-03
Abstract: PURPOSE: A cooling device having small number of components, free from the disorder, easy to repair and install and having excellent economical efficiency by using air is provided. CONSTITUTION: An air supply piece(10) injecting air to a heat exchanger body(20) injects atmospheric air into a heat exchanger body by the guiding of a hose or a pipe by the forcible air supplier such as a blower(11) or an air compressor. At the inlet hole of the heat exchanger body flows the air supplied from the air supply piece via an inlet pipe(21). At the medial of the heat exchanger body punches a reacting chamber(22) formed in a circular hole having a smooth surface in a diameter to make possible the crossing of the swirling air and the reflected air. The end of the reacting chamber is closed, so the inlet air bumps at the end part when the inlet air swirls strongly by a swirling member(30). The reflected air reflected on the medial is sent to the inlet hole again by passing through the medial of the swirling air. And an exhaust pipe(23) is formed to be communicated with the reacting chamber. Then, the reflecting amount of the reflected air is controlled to be proportional to the swirling amount of the swirling air by regulating the gap of an outlet by using a screw of a regulation valve(50). Thereby the whole cooling efficiency is controlled.
Patent KR-19990045572-A (KR)
Title: 엔진의 제어 장치
IPC: F02D41/30
Filed: 1998-11-25
Abstract: 본 발명은 실린더(2)내의 연소실(6)에 연료를 직접 분사 공급하는 직접 분사 엔진(1)의 배기 통로(31)에 린 NOx 촉매(34)를 배치하고, 엔진(1)을 저부하 영역에서 성층 연소 상태로, 또한 그 밖의 영역에서 균일 연소형 상태로 각각 운전하는 경우, 연소실(6)에서의 연료 균일성을 높이고, 연소 속도를 신속하게 하여 연소 효율의 효율을 높여, 배기 가스 온도를 내려 촉매 정화 성능을 올린다. 
     엔진(1)이 균일 연소 상태의 운전 영역에 있을 때에 실린더(2)의 흡기 행정에 의해 연료 분사 밸브(14)로부터 연료를, 조기 분사 개시 시기(s1)와 후기 분사 개시 시기(s2)의 중앙 시기(m)가 흡기 행정 중앙 시기(M)보다도 빨라지도록 2분할 분사한다.  피스톤(5)의 하강 이동에 따른 흡기 유동에 의해, 조기 분사 연료의 기화/무화를 촉진시킨다.  또한, 후기 분사 연료가 실린더(2) 벽면에 부착되어 연료의 균일화가 저해되는 것을 피함과 동시에, 점화까지의 시간을 길게 확보하여 연료의 기화/무화를 촉진시킨다.
Patent KR-20000034047-A (KR)
Title: Device for combining water supply hose of washing machine
Inventor: JEON MI JA
IPC: D06F39/08
Filed: 1998-11-27
Abstract: PURPOSE: A device for combining a water supply hose is provided to reduce production cost of a component and to combine the water supply hose into a faucet by simplifying a structure, and quickly and conveniently combine the water supply hose especially into the faucet formed a screw thread. CONSTITUTION: After an upper end of an upper screw thread(105) of a connector formed in an upper inner circumference of the connector is contacted in a lower part of a screw thread formed in a faucet(16), the connector(102) is tightened in the faucet by the screw thread of the faucet and the upper screw thread(105) of the connector. After an upper end of a screw thread(107) of combining member formed in an upper inner circumference of the combining member is contacted in a lower part of a lower screw thread of the connector formed in an outer circumference of the combining member, the combining member(103) is screwed in the connector(102) by the screw thread(107) of the combining member and the lower screw thread(106) of the connector. Thereby the water supply hose(12) is combined in the faucet having the screw thread.
Patent KR-20000038816-A (KR)
Title: Low carbon cold rolling steel plate for inner shield coated with permalloy and producing method thereof
Inventor: CHOI JANG HYEON
IPC: C25D3/56
Filed: 1998-12-09
Abstract: PURPOSE: An inner shield is provided to control the system of a coating material, to enhance corrosion resistance and to improve a soft magnetic characteristic of a low carbon cold rolling steel plate by supplying the low carbon cold rolling steel plate coated with a material having an excellent soft magnetic characteristic. CONSTITUTION: A permalloy coating layer(2) is formed on a low carbon cold rolling steel plate(1). Herein, the permalloy coating layer is a Ni-Fe alloy layer of 50 to 80 wt%, and the alloy layer is I to 100 micro meter. In producing the low carbon cold rolling steep plate, the surface of the cold rolling steel plate including less than 0.005% of carbon is coated with Ni-Fe alloy including 50 to 80wt% of Ni. Then, an inner shield steel plate is produced without a blackening process.
Patent KR-20000040501-A (KR)
Title: Formal inspection method parallel of object-oriented system
Inventor: WON SEONG GI
IPC: G06F9/46
Filed: 1998-12-18
Abstract: PURPOSE: A formal inspection method of a parallel object-oriented system is provided to verify an accuracy of the modeling by modeling a parallel object-oriented system, and to convert a parallel object-oriented modeling language into an existed modeling language. CONSTITUTION: A formal inspection method of a parallel object-oriented system comprise the steps of: modeling a system to verify on a parallel object-oriented modeling language by referring various information; converting the modeled system into an existed verifying modeling language; and verifying the converted model.
Patent KR-20000040508-A (KR)
Title: Preparation method of water glass (sodium silicate solution) from serpentinite
Inventor: JONG HUN SANG
IPC: C03C11/00
Filed: 1998-12-18
Abstract: PURPOSE: A preparation method of water glass (sodium silicate solution) from serpentinite is provided, which is characterized by melting sodium silicate by using NaOH at room temperature after activating serpentinite by acid. CONSTITUTION: A preparation method of water glass (sodium silicate solution) from serpentinite, in one embodiment, comprises the steps: (1) putting 300 g of serpentinite in 1000 ml of sulfuric acid solution(25%) followed by heating at 90-100°C for 30min; (2) recovering serpentinite residue by separating liquid-phase from solid-phase after 30min; (3) washing serpentinite residue with fresh water to remove sulfuric acid completely; (4) putting 100 g of washed serpentinite residue into 140 ml of NaOH(10%), followed by melting it for 10 min at room temperature; and then (5) recovering water glass from the solution after separating liquid-phase from solid-phase.
Patent KR-20000040720-A (KR)
Title: Method of forming interlayer insulating film in semiconductor device
Inventor: KIM CHANG HUN
IPC: H01L21/31
Filed: 1998-12-19
Abstract: PURPOSE: A method of forming an interlayer insulating film is to prevent a peel-off defect between an interlayer insulating film composed of multi-layers form being generated. CONSTITUTION: A method of forming an interlayer insulating film comprises the steps of: providing a wiring(23) on a substrate(21) and forming on the substrate a first interlayer insulating film(25) covering the wiring; coating on the first interlayer insulating film insulation material with good fluidity, to form a second interlayer insulating film(27) having a flat surface; reacting the surface of the second insulating film with O2 plasma to form a third interlayer(29) insulating film having an unstable bonding state and a coarse surface; and forming a fourth interlayer insulating film, which fourth interlayer insulating film effecting a stable bonding state at a surface contacting the third interlayer insulating film by mutual atomic exchange and rearrangement.
Patent KR-19990063255-A (KR)
Title: 렌즈부착사진필름 유니트 및 플래쉬 장치
IPC: G03B15/05
Filed: 1998-12-17
Abstract: 본 발명은 렌즈부착사진필름 유니트에 관한 것이다.  필름 유니트에서 충전 조작 부재는 내장된 플래쉬 장치의 플래쉬 충전 스위치를 ON시키기 위한 ON위치와 플래쉬 충전스위치를 OFF시키기 위한 OFF위치 사이로 이동가능하도록 안내부재의 전방측에 고정된다.  안내부재는 플래쉬 장치의 플래쉬 회로 기판의 전방측에 고정설치된다. 필름 유니트의 전,후방 커버 사이의 결합은 고전압전류가 흐르는 플래쉬 장치의 회로부와 떨어져 있게 셋팅된다.  플래쉬 충전 스위치는 플래쉬 회로 기판상에 제공된 접촉 칩과 금속 접촉 편으로 구성된다.  금속 접촉 편은 한쌍의 탄성 아암 기부에서 둥글게 만곡된다.  충전조작 부재는 ON위치에서 접촉 칩상에 아암을 계속 압압한다.  플래쉬 장치는 플래쉬 충전 스위치가 ON상태로 있는 동안 메인 콘덴서를 충전시키고 충전 전압이 규정 전압 이상 되었을 때 자동적으로 정지한다.  발광 다이오드는 충전완료를 표시한다.
Patent KR-20000042501-A (KR)
Title: Method for refining electric furnace for production of low phosphor high carbon molten steel
Inventor: KIM JEONG SIK
IPC: C21C5/28
Filed: 1998-12-26
Abstract: PURPOSE: A method for reducing in an electric furnace is provided to produce molten steel of low phosphor and high carbon including phosphor less than 0.02wt% by stabilizing chemically unstable phosphor compound in a high carbon region. CONSTITUTION: 0.8-2wt% of calcined dolomite to the total charge amount is input to an electric furnace where 15-40wt% of slag of previous working is remains. The furnace is tilted and the slag is coated on the furnace wall. 1.5-2wt% of quick lime for protecting the furnace body is input. Scrap iron and hot metal are charged into the furnace. The hot metal in the furnace is melted and quick lime and sintered ore are input simultaneously. For 30-70% of total melting time, quick lime, calcined dolomite and sintered ore are input dividedly. Around 80% of melting time, a small amount of quick lime and calcined dolomite are input. Thereby, reduction for producing low phosphor high carbon molten steel is completed.
Patent KR-20000042668-A (KR)
Title: Method for forming metal wirings of semiconductor device
Inventor: LEE SEONG GWON
IPC: H01L21/768
Filed: 1998-12-26
Abstract: PURPOSE: A method for forming metal wirings of a semiconductor device is provided to prevent a diffusion of copper atoms into an insulating layer and thereby to improve electrical characteristics of the device. CONSTITUTION: A lower barrier metal layer(2), a metal wiring layer(3) of copper, an upper barrier metal layer(4), and a planarizing layer(5) are successively formed on an insulating layer(1). Next, a photoresist layer is deposited on the planarizing layer(5) and then patterned. The planarizing layer(5) is selectively etched through the patterned photoresist layer. Next, under a temperature of more than 250°C, the lower and upper barrier metal layers(2,4) and the copper wiring layer(3) are etched by using the etched planarizing layer(5) as a mask. Subsequently, sidewalls of the copper wiring layer(3) are overetched with etching gas containing very small amount of oxygen. Then oxygen and nitrogen in the etching gas and the insulating layer(1) react with copper in the wiring layer(3), and thereby a protective layer(7) of silicon nitride oxide is formed on sidewalls of the copper wiring layer(3). The planarizing layer(5) is then reflowed in a temperature of 700 to 900°C, and therefore wholly covering the copper wiring layer(3).
Patent KR-20000043160-A (KR)
Title: Apparatus for removing waste in settling pond
Inventor: CHOI HO DUK
IPC: C02F1/52
Filed: 1998-12-28
Abstract: PURPOSE: An apparatus for removing waste in settling pond is provided, which is characterized in that a screen and belt conveyer are installed to move waste simply. CONSTITUTION: An apparatus is composed of a waterway structure, a hopper, a screen, a settling pond, and belt conveyers. A crane(6) is installed at the top of the apparatus, and a container car is controlled to be located at proper place. Waste is treated a screen for removing dust and a belt conveyer. When the container is full, the container is moved by the crane to be loaded on the vehicle. The crane moves according to the track(5), which is installed on the beam, which is parallel to the settling pond. Because the container is loaded to the vehicle directly, a building site can be reduced.
Patent KR-19990030447-A (KR)
Title: 수도 관로용 공기밸브
IPC: F16K33/00
Filed: 1998-12-31
Abstract: 본 발명은 수도 관로용 공기밸브에 관한 것으로, 급속배기를 위한 대직경의 시트가 형성된 챔버와 제한된 배기수단이 형성된 챔버가 형성되고 각 챔버에는 플로우트 볼이 제공된 쌍구형 공기밸브에 있어서, 대직경 시트(21)가 형성된 챔버(22)에 제공되며 플로우트 볼(24)이 단부에 결합되는 플로우트 볼 작동수단과, 상기 플로우트 볼 작동수단을 보지하도록 공기밸브의 바디에 고정되는 홀더(27)를 포함하고, 상기 대직경 시트 개방용 플로우트 볼 작동수단은 파이프(26)로서 플로우트 볼(24)을 관통하여 결합되고, 단부가 개방되어 챔버(22) 속의 공기와 함께 물이 배출될 수 있도록 되며, 상기 파이프(26)에는 그 자체의 관로를 통해 배수 및 배기가능하게 선택적으로 개폐할 수 있도록 개폐밸브(28)가 제공되고, 상기 파이프(26)는 그 외측 단부에 니플이 형성되어 배수용 호스(30)가 연결될 수 있으며, 상기 파이프(26)에는 대직경 시트(21)의 챔버(22) 내부 압력을 외부에서 확인할 수 있도록 압력게이지(29)가 제공되어 구성된다.
Patent KR-20000047134-A (KR)
Title: Temperature testing device for communication device
Inventor: LEE GAB SANG
IPC: H04Q1/00
Filed: 1998-12-31
Abstract: PURPOSE: A temperature testing device for a communication device is provided to develop an optimum rack being profited to a corresponding external condition by setting various surrounding conditions in the rack. CONSTITUTION: A power-supply part receives a power from an external part of a rack. Atmosphere heat cooling part(200) receives a power-supply from the power-supply part, circulates atmosphere heat, and provides atmosphere heat dropping condition. The atmosphere heat heating part(100) receives a power-supply from the power-supply part, drives heat generators being mounted to a lower part of rack, and provides a varied atmosphere heat rising condition. A temperature detector is mounted to a predetermined part of an inlet and outlet parts of the atmosphere heat cooling part(200), and detects a temperature of external atmosphere heat and a temperature of inner atmosphere heat discharged from an outlet part. Thereby, the temperature testing device for a communication device develops an optimum rack being profited to a corresponding external condition by setting various surrounding conditions in the rack.
Patent KR-19990044410-A (KR)
Title: 전류 메모리
IPC: G11C27/02
Filed: 1997-06-05
Abstract: 샘플이된 아나로그 전류들을 위한 전류 메모리는 제1의 조잡한 전류 메모리셀(T1,C1,S1)과 제2의 정밀한 전류 메모리셀(T2,C2,S2)로 구성되어 있다. 전류 메모리셀은 클락 싸이클의 제1 주기의 제1 부분동안(Φ1a)에는 입력전류를 감지한다. 반면에, 제2 전류 메모리셀은, 입력전류에서, 클락 싸이클의 제1 주기의 제2부분동안(Φ1b)에는 제1 전류 메모리셀에 의해 만들어진 전류를 뺀 전류를 감지한다. 제1 전류 메모리셀은 메모리 트랜지스터(T1)의 효율(g m )을 증가시키고, 트랜지스터들(T1,T2)의 드레인 전극들의 결합부의 전위를 가상접지전압과 비슷하게 유지시키는 전압 증폭기(2)를 추가로 포함하고 있다.
Patent KR-19990044667-A (KR)
IPC: C01B17/04
Filed: 1996-09-16
Abstract: Method for removing hydrogen sulphide compounds from liquid sulphur by treating the liquid sulphur with a gas, where liquid sulphur undergoes at least two separate treatments with finely divided gas, and in each treatment, a recirculation system with gas lift is used. The possibility that a part of the liquid sulphur not undergoing any treatment is minimised. Also claimed are an apparatus suitable for removing hydrogen sulphide compounds from liquid sulphur and a method, where the degassing compartment comprises means for creating at least two zones of rising sulphur by introducing finely divided gas into the sulphur.
Patent KR-19990067186-A (KR)
Title: Vbi에서 tv방송채널을 통해 개인용 컴퓨터로 전송되는rom데이타
IPC: H04N7/088
Filed: 1996-11-12
Abstract: 방송된 TV 영상과 함께 문자와 그래픽 정보를 나타내는 시스템에는 데이타를 공개적으로 방송된 비디오 신호의 VBI로 삽입하기 위한 VBI인서터(16)가 포함된다.  관련된 개인용 컴퓨터(10)에는 그 데이타를 비디오 신호에서 분리하기 위한 VBI 디코더가 있다.  분리된 데이타는 명령과 어드레스 정보를 포함하며, 이는 PC로 하여금 기억장치로부터 문자/그래픽 정보를 검색하도록 하거나 모니터(30)상에 정보를 표시하도록 한다.  방송장치는 모니터에 표시되는 TV 영상에 해당되는 문자와 그래픽 정보를 검색하는 데이타를 삽입한다.  사용자는 검색된 문자와 그래픽 데이타를 나중에 볼 수 있도록 저장할 수도 있다.
Patent KR-20000064773-A (KR)
Title: 도형 데이터 생성 장치, 도형 데이터 생성 방법 및 그 매체
IPC: G06T17/40
Filed: 1998-01-26
Abstract: 본 발명은 편지 대상의 파일에 의해 참조되고 있는 노드의 집합인 파일 스코프를 전환하는 기술에 관한 것이다. 이를 위해, 씬 그래프 편집 도구(424)는 오브젝트의 계층 구조 및 눈으로 보지 않은 소드(스크립트 노드)를 편집한다. 유저가 매뉴 화면의 Conductor 윈도우 등으로 편집 대상의 VRM1, 콘텐츠를 참조하고 있는 노드를 씬 그래프 윈도우내에 계층적인 트리 형식으로 표시한다. 씬 그래프 편집 도구(424)는 루팅 및 스크립트 작성의 편집의 대상으로 되는 노드를 씬 그래프 윈도우내에 표시하고 있는 파일 스코프로 한정하고, 유저에 의한 편집 대상의 VRML 파일의 변경에 따라 변경 후의 VRML 파일이 참조하고 있는 노드로 변경한다. 이 경우, 스크립트 노드 상호 정합성을 유지한다.
Patent KR-20000016001-A (KR)
Title: Receiving device having a simplified sampling rate converter
Inventor: DILLING EDWIN ROBERT
IPC: H04B1/10
Filed: 1998-02-27
Abstract: PURPOSE: A receiving device having a simplified sampling rate converter is provided to obtain a simplified first filter when the device has two filters. CONSTITUTION: The receiving device comprises: a first filter for inducing a first signal having a first sample frequency from an input signal; and a second filter for inducing a second signal having a second sampling rate from the first signal. The maximum value of a transition band of the first filter is greater than 1/2 of the second sampling rate and lower than a difference between the second sampling rate and a cutoff frequency of the second filter.
Patent KR-20000016258-A (KR)
Title: Flash-butt welder
Inventor: MAZUO KIECHI
IPC: B23K11/04
Filed: 1998-04-08
Abstract: PURPOSE: A flash-butt welder is provided to reduce the number of bus bars connecting a stationary head with a moving head and to reduce the impedance of bus bars. CONSTITUTION: A flash-butt welder is composed of:a stationary head(41); a moving head(42); a couple of electrodes(45a,45b) arranged on the stationary head and the moving head respectively; a power transformer(12) placed on the stationary head; four bus bars(21-24) arranged on a symmetry position around a billet(10) to connect the electrodes with the power transformer; and the half bus bars(22,24) of the whole bus bar number connected with the electrodes from the moving head.
Patent KR-20000022098-A (KR)
Title: Impact recognition device, in particular for a motor vehicle
Inventor: MADER GERHARD
IPC: H01H35/14
Filed: 1997-06-25
Abstract: PURPOSE: The device is provided for an impact recognition in particular for a motor vehicle, can detect the switching movement of acceleration switch and carry out the simple self in the circuit of switch. CONSTITUTION: The impact recognition has the accelerating switch designed by micro engineering and the monitoring circuit connected by accelerating switch. An impact recognition device has at least one micro mechanically formed acceleration switch (11) with a contact piece (111), which is movable in dependence on acceleration, and with a counter contact piece (112). For impact recognition purposes, a first voltage (USS1) is supplied by a monitoring circuit (3) to terminals (1111, 1121) of the contact pieces (111, 112), while a second voltage (USS2), through which the contact (111, 112) is made by virtue of electrostatic forces of attraction, serves to test the acceleration switch (11).
Patent KR-20000050675-A (KR)
Inventor: SIM MYUN KI
IPC: G02B1/116
Filed: 1999-01-13
Abstract: PURPOSE: A cathode-ray tube is provided which employs a functional film to improve contrast, color purity and color reproduction scope so that it represents high display quality and body color. CONSTITUTION: A cathode-ray tube is consisted of a panel, a certain pattern of a fluorescent film which is formed in the panel, a shadow mask frame assembly which is built inside the panel, a funnel which is connected to the panel and an electron beam is inserted in a neck part, a deflection yoke which is built in the cone part of the panel and a function film is attached to the outer face of the panel. The functional film contains a base film(30), a multilayered reflection preventing layer(50) which are formed in one side of the base film and wherein high and low refraction layers(51,52) are alternatively collected, an adhesive polymer resin which is formed in the other side of the base film and an adhesion layer(60) which includes at least one selected from organic or inorganic dyes or paints.
Patent KR-19990067910-A (KR)
Title: 윤활유의 중화력을 규정하는 방법 및 그 방법을 수행하는 장치
IPC: C10M163/00
Filed: 1999-01-15
Abstract: 본 발명은 디젤 엔진에서 특별히 사용되고 있는 윤활유의 연구와 제조에 관한 것이다. 
     본 발명에 따르면 세탁제 첨가물을 함유하고 있는 윤활유의 중화력 (neutralization capacity)은 온도를 일정하게 유지한 누수방지 탱크(1)(leaktight tank)안에, 이미 알고 있는 질량의 윤활유 막에 존재하는 첨가물이 제공하는 염기와 소정 양의 액체 산을 반응시키고, 시간에 따른 누수방지 탱크(1)내의 압력을 기록하고, 기록한 압력값으로 부터 다음의 세 가지 특성화된 변수들 중 적어도 하나를 결정하는 단계로 구성되어 있다.: 반응을 위한 개시기간, 중화 퍼텐셜, 반응률 
     본 발명은 윤활유 제조 및 엔진 제조의 연구 조사와 실험에 응용될 수 있다.
Patent KR-20000051094-A (KR)
Inventor: GO JAE JUN
IPC: H04B7/26
Filed: 1999-01-18
Abstract: PURPOSE: A method for controlling a roaming cellular phone terminal of a city phone function is provided to reduce communication costs by converting into a city phone mode, when calling over stopping a use for a roaming communication terminal mode. CONSTITUTION: A method for controlling a roaming cellular phone terminal of a city phone function, which includes antenna, a first circuit for a roaming mobile communication function, a second circuit for executing of the city phone, a switching circuit and a controller, comprises the steps of: deciding whether a user requests for a use of the city phone function, while executing the roaming communication function; if requests, controlling the switching circuit and making the second circuit connected to the antenna, with executing the city phone function, and if not, executing the roaming mobile communication function; deciding whether the user requests for ending of the city phone function; and if requests, making the first circuit connected to the antenna and executing the roaming mobile communication function, and if not, continuing on executing the city phone function.
Patent KR-20000051390-A (KR)
Title: Microwave oven
Inventor: LEE CHAE HWA
IPC: H05B6/80
Filed: 1999-01-21
Abstract: PURPOSE: A microwave oven is provided to reduce manufacturing cost by forming a case defining a cooking chamber in a single shape and selectively changing a capacity of the cooking chamber large or small. CONSTITUTION: A microwave oven includes a main body having a cooking chamber(30) defined at one side by first and second cavities(31,32) and coupled with front and rear panels, a door mounted at one side of the front panel for opening and closing the cooking chamber, a machinery chamber defined at the other side between the front and rear panels and disposed with parts for oscillating microwaves, a control panel mounted at the other side in front of the front panel for driving the main body according to functions, and a variable element(70) alternatively coupled or separated with relation to the first cavity for changing a capacity of the cooking chamber, wherein the variable element is a variable plate(75) including first and second coupling holes(71,72) formed at rear and upper walls of the cooking chamber and first and second coupling protrusions(73,74) formed at a side surface and another surface to be coupled with the coupling holes.
Patent KR-19990045851-A (KR)
Title: 밀레니엄버그방지장치
Filed: 1999-01-27
Abstract: 본 발명은 컴퓨터에서 문제가 되고 있는 바이오스(BIOS)를 소프트웨어적으로 수정함으로써 2000년 표기오류 문제가 발생하는 것을 방지할 수 있는 밀레니엄 버그 방지 장치에 관한 것이다. 
     본 발명의 밀레니엄 버그 방지 장치는 단전에 무관하게 시간계수동작을 수행하는 리얼 타임 클록부와, 종래의 바이오스 프로그램이 저장된 제1 바이오스 롬과, 제1 바이오스 롬의 제작사와 제작날짜를 검색하여 문제기종으로 판단된 경우 각 제작사에 적합하게 날짜 검색처리를 수행함과 아울러 리얼 타임 클록부의 동작을 체크하여 오류가 발생하는 경우 보정하기 위한 바이오스 프로그램이 저장되는 제2 바이오스 롬과, 제2 바이오스 롬의 프로그램을 실행시키는 중앙처리장치를 구비하는 것을 특징으로 한다. 
     본 발명에 의하면, 보정용 BIOS 롬을 추가로 구비하여 부팅시 보정용 BIOS 롬을 우선적으로 작동시킴으로써 날짜가 맞지 않아 부팅이 않되거나 프로그램이 오동작하는 밀레니엄 버그를 방지할 수 있을 뿐만 아니라 오류날짜를 디스플레이하는 현상을 방지할 수 있게 된다.