baber/WOPTO huggingface dataset:
Patent KR-20000002353-A (KR)
Title: Method for reading data from an optical data storage medium drive
Inventor: PARK MU HEUN
IPC: G06F3/00
Filed: 1998-06-19
Abstract: PURPOSE: A data reading method for an optical data storage medium drive is provided to solve a problem that while a data, read from the drive, is being written into a buffer, if a user requests another data from the drive then the data having been stored in the buffer is destroyed by the currently read data. CONSTITUTION: The data reading method includes detecting an address of a data requested by a user and stored in an optical data storage medium drive, allotting a first area of a buffer to the data, determining whether while the data is being stored in the first area of the buffer, the user requests another data stored at another address of the drive, allotting a second area of the buffer to the another data, and storing the another data into the second area of the buffer.
Patent KR-19990007167-A (KR)
Title: 다중 임계값으로부터 하나의 임계값이 설정될 수 있는 반도체 메모리 장치
IPC: G11C11/56
Filed: 1998-06-19
Abstract: 본 발명의 반도체 장치는,  하나의 임계값이 n 종류의 임계값으로 설정되는 메모리 셀로 이루어진다.     장치는  메모리 셀을 선택하는 워드선과,  워드선을 선택하는 X 디코더와,  메모리 셀의 출력을 증폭하는 센스 증폭기와,  n-1 종류의 임계값이 설정되는 n-1 기준 셀과,  각 기준 셀의 출력을 증폭하는 n-1 기준 증폭기와,  각 기준 증폭기의 출력을 수신하는 n-1 차동 증폭기와  센스 증폭기의 출력부를 포함한다.     또한,  장치는  n-1 차동 증폭기의 출력을 인코딩하는 인코더를 추가로 포함한다.     마지막으로,  본 발명의 반도체 장치는  워드선에 공급된 전압보다 낮은 인접한 임계값 전압의 절반인 전압을 모든 기준 증폭기에 공급하는 레벨 시프트 회로로 이루어진다.
Patent KR-19990062436-A (KR)
Title: 박피기
IPC: A22C25/17
Filed: 1998-06-24
Abstract: 본 발명은 어육의 껍질을 전체면에 걸쳐 톱니로울러 및 박피칼에 균등하게 눌러 붙일 수 있어 어육을 손상시키지 않는 박피기를 제공하는 것으로, 톱니로울러(21)와 박피칼(22)을 가진 박피부(20)와 공기의 흐름을 이용하여 재료를 누르는 재료 누름장치(30)를 갖춘 박피기이다.
Patent KR-20000008861-A (KR)
Title: Method for coloring glass by using titanium deposition
Inventor: LEE JI-HWAN
IPC: C23C14/10
Filed: 1998-07-16
Abstract: PURPOSE: A method for coloring the surface of a glass material and, especially, for coloring glass by titanium deposition is provided to color the surface of glass in various colors by anodic oxidation method. CONSTITUTION: A method for coloring glass by using titanium deposition comprises the steps of:cleaning the surface of glass; depositing titanium on the surface of the glass; and coloring the surface of the titanium deposition layer by the anodic oxidation method, wherein the titanium deposition layer is 0.5 to 5 micrometers and an electrolyte used in the anodic oxidation method comprises 0.01 to 5 mol/l H3PO4, 0.01 to 1.5 mol/l H2O2 and 0.01 to 3 mol/l H2SO4.
Patent KR-19990036576-A (KR)
Title: 모터의 고조파전류 감쇄장치
IPC: H02P7/29
Filed: 1998-07-27
Abstract: 본 발명은 모터의 고조파전류 감쇄장치에 관한 것으로, 전원공급수단으로부터 모터로 공급되는 정현파 교류전원의 위상을 제어하여 모터의 회전속도를 조절하고, 상기와 같이 교류전원의 위상제어시에 발생되는 고조파전류를 감쇄시키기 위한 고조파전류 감쇄수단이 구비된 모터의 고조파전류 감쇄장치에 있어서, 사용자의 조작에 의해 위상제어모드 또는 강력모드를 선택하는 조작수단과, 상기 조작수단에 의해 위상제어모드가 선택되면 상기 전원공급수단으로부터 공급되는 교류전원을 상기 고조파전류 감쇄수단을 통해 모터로 공급하고, 강력모드가 선택되면 상기 전원공급수단으로부터 공급되는 교류전원을 모터로 직접 공급하는 스위칭수단을 더 포함하여 구성되어, 모터로 공급되는 교류전원의 위상제어시에 하모닉트랜스를 통해 고조파전류를 감쇄시키는 것은 물론, 모터로 공급되는 교류전원의 위상제어없이 강력모드로 운전되는 경우 전원공급수단으로부터의 교류전원을 하모닉트랜스를 통하지 않고 스위칭수단을 통해 모터로 직접 공급함으로써, 모터의 출력을 향상시킬 수 있도록 한 것이다.
Patent KR-20000010281-A (KR)
Title: Process for producing n-methylmorpholine
Inventor: JEONG CHAN SEONG
IPC: C07D295/03
Filed: 1998-07-31
Abstract: PURPOSE: A process for producing N-methylmorpholine (NMM), an intermediate of N-methylmorpholine N-oxide (NMMO), used as one of solvents for producing rayon, is provided to obtain NMM in a high yield by using metal catalysts made by impregnating Ni, Cu and Cr into a supporter. CONSTITUTION: NMM is obtained by reacting diethyleneglycol with methylamine and hydrogen in the presence of Ni-Cu-Cr catalysts impregnated into a supporter, preferably alumina. The metal catalysts comprises the steps of: impregnating metal salts preferably comprising 75 mole% of Ni, 23 mole% of Cu and 2 mole% of Cr into alumina; removing extra moisture; leaving it for 10-48 hrs; and drying it at 70-120°C.
Patent KR-20000010330-A (KR)
Title: Signal flag
Inventor: YAMAMOTO HIROSHIA
IPC: G08G1/095
Filed: 1998-07-31
Abstract: PURPOSE: A signal flag is provided to smoothly perform traffic adjustment by cutting down traffic congestion time or stand-by time and fast restore a defect section by informing defect of the signal flag or wire or power of a manager. CONSTITUTION: The signal flag comprises a signal section formed at a position which can be seen from a passing side of cars, a detector detecting passage of the cars around the signal section, a controller converting and controlling a departure or a stop signal of the signal section according to passing information of the detector, and a power supplying power consumed at the signal section, the detector, and the controller.
Patent KR-19980072206-A (KR)
Title: 도어용 경첩
Filed: 1998-07-31
Abstract: 본 발명은 도어 글라스(10)가 급히 열려지거나 닫혀지게 되는 것을 방지함으로서 도어 글라스(10)가 파손되는 것을 방지할 수 있게 하고, 또한 도어 글라스(10)의 오픈 각도를 용도에 따라서 조정할 수 있게 함으로서 실용성이 보다 향상될 수 있게 하는데에 있는데에 있는 것으로서, 그 구조는 허브(16)를 상, 하부에 형성하면서 고정되게 설치되는 바디a(14)와, 상기 허브(16)에 결합되어 회동중심을 이루는 힌지축(50)과, 상기 힌지축(50)에 결합되는 허브(38)를 일체로 형성하면서 도어 글라스(10)와 함께 회동되게 설치되는 바디b(36)와, 상기 바디a(14)의 일측에 위치하여 바디b(36)의 타측단부를 가압함으로서 멈춤역할을 하는 스토퍼(26)와, 상기 바디a(14)의 일측에 설치되어 스토퍼(26)가 전, 후로 유동할 수 있도록 탄성력을 제공하는 스프링(22)으로 구성되는 도어용 경첩에 관한 것이다.
Patent KR-20000015138-A (KR)
Title: Insulated gate bipolar transistor having a trench gate structure
Inventor: LEE GYU HYEON
IPC: H01L29/739
Filed: 1998-08-27
Abstract: PURPOSE: An insulated gate bipolar transistor having a trench gate structure is provided to control the operation of a parasitic thyristor by reducing the voltage applied to a pn junction between an emitter region and a base region. CONSTITUTION: In an insulated gate bipolar transistor(IGBT) having a trench gate structure, a channel blocking region highly doped with p-type impurities is partially formed between a p-type base region and a highly doped n-type emitter region in which a conduction channel is formed. A part of the emitter region is directly contacted with the base region and a channel blocking layer is inserted between another part of the emitter region and the base region. In the region where a channel blocking region is inserted, electronic current from the emitter region cannot flow vertically to a drift region. The electronic current flows horizontally to a direct contact region between the emitter region and the base region and flows to the drift region. Therefore, a voltage drop is caused by electronic current flowing horizontally in the emitter region and a latch-up phenomenon in which a parasitic thyristor turns on is controlled due to a voltage drop of the junction between the emitter region and the base region.
Patent KR-19990086983-A (KR)
Title: 고속 에지형 커넥터
IPC: H01R12/50
Filed: 1998-09-08
Abstract: 본 발명은 하나의 삽입 에지 및 2개의 측면을 갖는 제1 전기 회로 기판을 제2 전기 회로 기판에 연결하기 위한 에지형 전기 커넥터 및 상기 커넥터용 단자에 관한 것으로, 본원 발명에 의한 커넥터는 제1 전기 회로 기판의 삽입 에지를 수용하기 위한 종방향 슬롯과 슬롯의 각 측면 상에 슬롯에 인접한 다수의 횡방향 단자 수용 공동을 갖는 긴 절연 하우징과, 슬롯의 각 측면 상에 단자 수용 공동들의 일부에 배치된 다수의 신호 단자 및 슬롯의 각 측면 상에 단자 수용 공동들의 다른 일부에 배치된 다수의 접지 단자를 포함하며; 신호 단자 및 접지 단자는 기부(base portion)와, 기부로부터 연장되고 수용 공동의 하나에 단자를 보유하는 수용부와, 단자를 제2 전기 회로 기판에 전기적으로 연결하기 위해 기부로부터 연장된 미부(tail portion)와, 단자를 제1 전기 회로 기판에 전기적으로 연결하기 위해 기부에 연결된 스프링 아암을 각각 구비하며; 접지 단자는 접지 단자와 인접한 신호 단자 사이의 전기적 결합(coupling)을 향상시키기 위한 통상 테이퍼진 확장 표면 영역부를 포함한다.
Patent KR-20000019054-A (KR)
Title: Accumulator of rotary compressor
Inventor: KIM DONG HAN
IPC: F04C18/00
Filed: 1998-09-08
Abstract: PURPOSE: An accumulator of a rotary compressor is provided to reduce the channel resistance of a coolant and to improve the efficiency of the compressor by changing the shape of a holder to shorten the flow route of the absorbed cooling gas flowed in from the upper part of the accumulator. CONSTITUTION: An accumulator of a rotary compressor is composed of a slant face that gets higher toward the upper part as going to the central part from the outline of a screen holder(104) and a coolant inflow hole(105) on the slant face so as to maximize the dimension where the coolant passes through. Herein, at the initial time of the operation of the compressor the two-phase coolant coming from an evaporator is flowed in a shell(2) and passes through the coolant inflow hole(105) of the screen holder. Then, the two-phase coolant moves toward the lower side of the shell while dirt is hanged through the screen of the front face.
Patent KR-19990030110-A (KR)
Title: 영구자석 회전자형 전동기
IPC: H02K15/03
Filed: 1998-09-24
Abstract: 본 발명은, 영구자석이 매설된 회전자를 갖는 영구자석 회전자형 전동기에 관한 것으로서, 회전자코어의 어느 일방 극성자극에 사용되는 영구자석과, 타방향 극성자극에 사용되는 영구자석을 각각 형상 및 재료가 다른 영구자석을 사용하는 것을 특징으로 한다.  이에 의하여, 영구자석전동기의 자속밀도 및 릴럭턴스토오크의 선택폭을 넓힐 수 있는 영구자석 회전자형 전동기가 제공된다.
Patent KR-20000024774-A (KR)
Title: System for controlling remote digital camera on internet and method the same
Inventor: HA YOUNG KUK
IPC: H04N5/232
Filed: 1998-10-01
Abstract: PURPOSE: A system for controlling a remote digital camera on the internet and a method the same are provided to control a digital camera mounted on a local system, and to control a digital camera mounted on a system of a remote place, on the basis of a web through the internet. CONSTITUTION: A system for controlling a remote digital camera on the internet comprises a digital camera control system(1), an internet(3), and a system(4) of a remote place. The digital camera control system(1) is a software module(2A), and comprises a general HTTP(HyperText Transfer Protocol) server section(11), a HTTP server section(12) for controlling a digital camera, a file system interfacing section(13), a TCP/IP(Transport Control Protocol/Internet Protocol) interfacing section(14), an IEEE(Institute of Electrical and Electronics Engineers)1394 interfacing section(15), HTML documents, and a Java Applet. A hardware module(2B) comprises an internet adapter(17), an IEEE1394 host adapter(18), an IEEE1394 cable(19), and many cameras(20). The system(4) of the remote place is composed of a web browser(41). A method for controlling the remote digital camera comprises the steps of: performing the web browser in the system of the remote place, inputting an URL(Universal Resource Locator) for the HTML documents, and trying connection to a control system of the digital camera; reading an internet packet through the internet adapter and the TCP/IP interfacing section, and confirming a port number appointed in the internet packet; performing a control operation by selecting one port of HTTP server ports or other ports, and general HTTP server ports, according to the confirmed result, transmitting the result to the internet.
Patent KR-20000031835-A (KR)
Title: Method for minimizing sensed distance of parking alarm
Inventor: LEE GEAN HO
IPC: B60Q5/00
Filed: 1998-11-10
Abstract: PURPOSE: A method for minimizing a sensed distance of a parking alarm is provided to park easily by displaying a distance between a vehicle and an object, and to alarm a driver by sensing an object placed in a very adjacent distance where the driver can't check. CONSTITUTION: A microcomputer(100) sequentially selects a sensor for sensing a distance between a vehicle and an object when a driver inputs a power on and off key or a parking alarm is operated. A selected sensor decides if noise is input or not for a regular time. When noise is input, the microcomputer does'n't measure the distance. The other way, when noise is not input, the microcomputer measures the distance and sets a measuring time(14) for an echo and reflecting wave. Also the microcomputer measures the distance between the object and the vehicle by conducting a long distance measuring mode. Then, if the measured distance is within the minimum set distance, the microcomputer measures the distance and if the measured distance is more than the maximum set distance, the microcomputer selects sensors again.
Patent KR-20000032192-A (KR)
Title: Device for attaching/detaching object
Inventor: KANG YEONG SIK
IPC: B66C1/00
Filed: 1998-11-13
Abstract: PURPOSE: A device for attaching/detaching an object is provided to attach or detach an object by a wire or wireless system in underwater. CONSTITUTION: An actuator(10a) is rectilinear to the right when a certain signal is fed to a solenoid(10). A movement block(14) clockwise rotates on a rotating shaft(14a) as a center by the movement of the actuator. Then, a rotary member(16) clockwise rotates on a rotating shaft(16a) as a center by the elasticity of a spring(30). A first link(18) moves little upward by the rotary member and then an end connected to a hook(12) moves to the center so that the hook counterclockwise rotates no a rotating shaft(12a) as a center. Therefore, the hook is released from an installing adapter(50). Likewise, a second link(20) moves little downward to release the hook from the installing adapter.
Patent KR-20000032377-A (KR)
Title: Dropping alarm circuit for pcb in refrigerator
Inventor: JUNG IL SIK
IPC: F25D23/00
Filed: 1998-11-13
Abstract: PURPOSE: A dropping alarm circuit for PCB(Printed Circuit Board) in a refrigerator is provided to prevent misoperation and breakdown of the refrigerator from occurring by detecting the dropping in the inside of PCB and then alarming to a user. CONSTITUTION: A dropping alarm circuit for PCB in a refrigerator includes a bridge circuit (10) having a first thermistor(R1) sensing the open air humidity of the refrigerator and a second thermistor(R2) sensing the humidity of inside of the refrigerator to maintain the balance, an inverting amplifier(20) outputting a high signal if a voltage output corresponding to the humidity detected in the second thermistor is under a predetermined reference voltage, a transistor turning on when a high signal of the inverting amplifier is output, and an alarm sound generator operating when the transistor turns on.
Patent KR-20000032463-A (KR)
Title: Power generator and device for driving compressor using braking energy
Inventor: CHOI SEOK RAK
IPC: B60T8/00
Filed: 1998-11-14
Abstract: PURPOSE: A power generator and a device for driving a compressor are provided to drive the compressor and the power generator by using the braking energy of a motor vehicle for using the wasting braking energy while braking the motor vehicle. CONSTITUTION: A driver steps on a brake pedal(20) for decreasing the speed of a vehicle according to the increase of the speed and the condition of traffic. An operating switch(30) connected to the brake pedal is turned on. Upon electric power being connected, electromagnetic force is formed in the coil of an electronic clutch(10) for pulling an amateur to be connected with a lining. While transferring rotating force connected to a second pulley(70) of a compressor(80) connected to the first pulley by using a V-belt(85), a braking friction transferring unit(40) containing a housing having two pulleys rotates for driving a generator(100) connected to a first pulley(35). Therefore, the compressor is driven by using the transferred rotating force as well as the rotating force of a motor. Herein, if the user steps on the brake pedal forcibly, the pressure or oil holds the brake linins to stopping the motor vehicle.
Patent KR-20000037679-A (KR)
Title: Steering angle sensor integrated with cancel cam of vehicle
Inventor: PARK NAM KYU
IPC: B62D15/02
Filed: 1998-12-01
Abstract: PURPOSE: A steering angle sensor integrated to a cancel cam of a vehicle is provided to perform a function as a cancel cam and a function for measuring steering angle of a steering wheel by being installed on the installation position of a cancel cam of a general multi-functional switch. CONSTITUTION: A cancel cam performs a function for returning a turn switch lever(10) to the original position according to the rotational direction of a steering handle by a protrusion(16a) formed on the circumference of a cancel cam(16). The measurement of steering angle of a steering handle(7) is performed by the operation of a detection ring(17) protruded on the circumference of the cancel cam and multiple light receiving elements and light emitting elements(21,22). The cancel cam connected to the steering wheel integrally by a connecting protrusion(18) is rotated with the steering wheel by the rotation of the steering wheel. The steering angle of the steering wheel is measured by the rotation of the detection ring and the operation of many detection holes(17a) formed on the circumference of the detection ring, the light receiving elements and the light emitting elements.
Patent KR-20000037833-A (KR)
Title: Method for notifying capability of phone call
Inventor: HWANG SANG JIN
IPC: H04B7/26
Filed: 1998-12-02
Abstract: PURPOSE: A method for notifying a capability of a phone call is provided to allow a transmitter subscriber to immediately try to make a call again when it is detected that a phone call is available at a receiver subscriber where a call process has been failed, by enabling a receiver terminal to inform a transmitter terminal of a call available status after a reason of a call failure was removed. CONSTITUTION: If a transmitter terminal generates a transmission call(200), it is determined whether a receiver terminal has a location recorded status(201). If the receiver terminal has the location recorded status, a normal phone call is performed between the transmitter and receiver terminals(202). If the receiver terminal has not the location recorded status, a service for notifying that a phone call is available is selected and a phone number of the transmitter terminal is inputted(203). The phone number thereof is stored in a database(204). If the receiver terminal has the location recorded status, the phone number thereof is searched(206). If the transmitter terminal has the location recorded status, the transmitter terminal that requested the service is notified that the receiver terminal currently has the location recorded status(208).
Patent KR-20000034763-A (KR)
Title: Media unit for treating wastewater
Inventor: CHO YONG IL
IPC: C02F3/10
Filed: 1998-11-30
Abstract: PURPOSE: A biological treatment method of waste water using aerobic microorganism is provided, which is characterized in that media in shape of cylinder is installed so that porous contacting material is provided. CONSTITUTION: A media unit (1) for sticking of microorganisms is installed, which is in shape of cylinder (2). Several holes (4, 4') for flowing water are made on the surface, and a contacting material (7) in shape of sponge is filled in the cylinder (2). The contacting material is made of synthetic resin (5), and materials in shape of thread are woven to make porous media. Both ends of the cylinder are opened, and the contacting materials are suspended in the waste water. Lots of units are included in the contacting tank, and move in the waste water so that microorganism can be stuck to the media excellently.
Patent KR-20000037933-A (KR)
Title: Method for performing automatical re-connection of terminated call in case of call error in mobile communication system
Inventor: KIM NAK KOO
IPC: H04W68/00
Filed: 1998-12-03
Abstract: PURPOSE: A method for performing an automatical re-connection of a terminated call in case of a call error in a mobile communication system is provided to allow a user to remove a burden to retry a phone call when a proceeded call is released due to a temporal stop of the call in an elevator or tunnel, by performing the automatical re-connection thereof in a paging manner when the call error occurs. CONSTITUTION: A mobile station(MS) detects a call error and notifies a standby state for a re-connection to a user of a mobile terminal. A base station(BS) transmits a call error reporting message to a mobile switching center(MSC) when a call connection error occurs while a call service between a subscriber of the mobile communication and the other subscriber thereof. The line of the other subscriber is suspended according to the transmitted call error reporting message, and a paging for a re-connection of the error call is tried. In response to the paging for the re-connection, the re-connection is performed if a response from the mobile terminal exists.
Patent KR-19990037601-A (KR)
Title: 압착식 금속관 접속공구
IPC: B21D39/00
Filed: 1998-12-23
Abstract: 본 발명은 개별운동이 가능한 네개의 압착다이스(3)로 그 체결부(34)에 금속링(36)과 팩킹링(35)을 인접하여 동시에 장착하는 압착식금속 관이음쇠(33)의 체결부(34)를 가압하여 관이음쇠(33)를 관(37)에 압착체결하는 압착식 금속관 접속공구에 관한 것으로 종래의 위 방법공구는 그 몸체가 중앙힌지를 축으로 하는 회전형식의 외팔보 구조로 중량이 무거웠고, 코일스프링(S)의 배치도 적절치 못하여 시공하자가 많았고 경제성 및 작업성도 좋지 못했다. 
     이에 출원인은 죠(J)의 회전방식이 아니고 서로 대향가압하는 방식으로 죠(1)(2)와 로워죠후레임(7)을 직접 연결하며, 코일스프링등 탄성체(4)의 배치와 방향을 개선하여 공구의 경제성, 작업성 및 시공하자의 문제들을 해결하는 새로운 압착식 금속관 접속공구를 출원하는 바이다.
Patent KR-19990024227-A (KR)
Title: 컴퓨터가 내장된 금고를 겸한 책상
IPC: A47B21/00
Filed: 1998-12-23
Abstract: 본 발명은 책상 양측의 서랍이 내장되는 위치에 도난을 방지할 수 있는 금고를 구비하되, 상기 금고의 내부에는 컴퓨터를 내장하여 각종 비밀문서나 중요한 데이터 등을 입력해두면 도난을 방지할 수 있음은 물론이고, 중요한 기밀내용에 대한 보안성을 최대한 유지할 수 있으며, 특히 단일의 책상을 이용하여 컴퓨터가 내장되어 사용의 편의성과 아울러 금고의 기능을 동시에 수행할 수 있게 하므로서 매우 효과적으로 사용할 수 있게 한 것이다. 
     본 발명은 책상(10)의 양측 내부에는 도어(31)(41)가 각각 설치된 한쌍의 금고(30)(40)를 일체적으로 구비하되, 상기 일측의 금고(30) 내부에는 컴퓨터(20)를 내장하고 타측의 금고(40) 내부에는 금고서랍(43)을 각각 내장하며, 책상(10)을 이루는 상판(11)의 하부에 설치된 하판(17)의 상부에는 경사판(16)을 설치하여 모니터(21)를 경사상으로 안치하며, 전방측에는 슬라이드판(13)을 설치하여 키보드(22)를 안치하고, 상기 슬라이드판(13)의 전방측에는 각운동이 가능한 커버(14)를 설치하며, 상판(11)의 표면 적정위치에는 함실(23)을 형성하여 내장된 모니터(21)가 육안으로 식별이 가능하게 하고, 상기 책상(10)에 설치되는 컴퓨터(20)와 모니터(21) 및 키보드(22)를 연결하는 배선은 경사판(16)의 하부에 위치한 하판(17)을 통과하여 컴퓨터(20)가 내장된 금고(30)와 관통되게 연결한 것이다.
Patent KR-20000042751-A (KR)
Title: Method for performing voice mail system while cellular phone line is busy in base station
Inventor: IM YEONG HO
IPC: H04W4/12
Filed: 1998-12-26
Abstract: PURPOSE: A method for performing a voice mail system is provided to perform the voice mail system when a telephone conversation is not available caused by noises or caused when a busy cellular phone is moved to a service-unavailable area, by transmitting a message informing that a subscriber of the busy cellular phone moves to the service-unavailable area, and by transmitting a voice message/data transmitted from the other side to the busy cellular phone subscriber. CONSTITUTION: A method for performing a voice mail system while a cellular phone line is busy in a base station, comprises the steps of: if a subscriber of the busy cellular phone line moves to a service-unavailable area or a signal notifying an unavailable call message is delivered, transferring other side into the voice mail system; delivering a voice message informing the other side of an unavailable call situation or the service-unavailable area; storing a message received from the other side in the voice mail system; and if a call ending signal is received from the other side, cutting off a call.
Patent KR-20000044662-A (KR)
Title: Method for manufacturing triple well of semiconductor element
Inventor: OH JAE GEUN
IPC: H01L21/265
Filed: 1998-12-30
Abstract: PURPOSE: A method for manufacturing a triple well of a semiconductor element is provided to reduce a current leakage and to ensure a sufficient thermal budget by performing a heat treatment process after an ion implantation process has been finished. CONSTITUTION: A first deep conductive well ion implantation area(44) is formed on a semiconductor substrate(51). Impurities in the first deep conductive well ion implantation area(44) are activated by a rapid heat treatment. Then, a first conductive impurity ion implantation area is formed. After that, a second conductive impurity ion implantation area is formed. Finally, the impurities implanted into the semiconductor substrate(51) are activated by a furnace heat treatment.
Patent KR-19990037625-A (KR)
Title: 세라믹 발열체
IPC: H05B3/10
Filed: 1998-12-30
Abstract: 본 발명은 세라믹 발열체에 관한 것으로서, 공급되는 전원에 의해 각 전극 사이에서 전계가 발생되고, 전계에 의해 발열되는 세라믹 발열체에 있어서: 중앙부에 장공이 형성된 원통형상의 발열저항체와; 발열저항체의 외측벽과 내측벽에 도포되고, 전원이 접속되는 도전체의 전극부와; 전극부가 도포된 발열저항체의 외부에 형성된 마감재를 포함하며; 전극에 전원이 공급됨에 따라 발열저항체의 외측벽과 내측벽 사이에서 전계가 형성되는 것을 특징으로 한다. 
     본 발명에 따르면, 실린더형 세라믹 발열체의 외벽과 내벽에 각각 전원단자를 접속함으로써, 전계의 흐름이 내벽과 외벽 사이에 형성되므로 전계의 확산범위가 많아 발열효율이 증대된다.