baber/WOPTO huggingface dataset:
Patent KR-20040022333-A (KR)
Title: Shifting apparatus of manual transmission
Inventor: LEE HEUNG GYU
IPC: F16H63/32
Filed: 2002-09-05
Abstract: PURPOSE: A shifting operating apparatus of a manual transmission is provided to prevent noise between a changing rod and a linear ball bearing by vibration transferred to the changing rod from a dynamometer. CONSTITUTION: A shifting operating apparatus of a manual transmission includes a changing rod, a linear ball bearing and a damper(30). The changing rod is installed inside a housing of the manual transmission and moved and rotated according to an operation of a shifting lever to operate the manual transmission. The linear ball bearing is installed to a side between the changing rod and the housing of the manual transmission to guide motion and rotation of the changing rod in an axial direction. The damper is included to the other side between the changing rod and the housing of the manual transmission to prevent noise between the changing rod and the linear ball bearing. Thereby, the indoor of a vehicle is pleasant by preventing noise due to a clearance between the changing rod and the linear ball bearing.
Patent KR-20040021943-A (KR)
Inventor: JUN HONG SEOK
IPC: F25B41/06
Filed: 2002-09-06
Abstract: PURPOSE: An air conditioner is provided to mount proper capillary tubes considering installation conditions such as the length of connection pipes when installing an air conditioner, thereby realizing the optimum performance in the operation of the air conditioner. CONSTITUTION: An air conditioner includes a capillary tube(50) detachably mounted in the middle of one of connection pipes(41,42) between indoor and outdoor units and expanding the refrigerant while reducing the pressure thereof. The capillary tube has an end connected to a pipe connection part(34a) of either the indoor or outdoor unit and the other end connected to the connection pipe.
Patent KR-20030023516-A (KR)
Title: Contact for vacuum interrupter and vacuum interrupter using the contact
Inventor: MATSUI YOSHIHIKO
IPC: H01H33/664
Filed: 2002-09-11
Abstract: PURPOSE: A contactor for vacuum interrupter and a vacuum interrupter using the same are provided to enhance magnetic field intensity without being deteriorated in mechanical strength. CONSTITUTION: A contact for a vacuum interrupter comprises a hollow cylindrical contact carrier(1) including a center axis, opposed axial end faces and an axial length extending along the center axis, a contact plate(2) disposed on one of the opposed axial end faces of the contact carrier, a plurality of first slits(5) extending from the one of the opposed axial end faces of the contact carrier and inclined with respect to the center axis of the contact carrier, the first slits having a first height extending in the axial direction of the contact carrier, and a plurality of second slits(6) extending from the other of the axial end faces of the contact carrier and inclined with respect to the center axis of the contact carrier, the second slits having a second height extending in the axial direction of the contact carrier, the second slits cooperating with the first slits to define a coil portion in the contact carrier therebetween which allows a current to flow and form an axial magnetic field along the axial direction of the contact carrier.
Patent KR-20040024623-A (KR)
Inventor: KIM BOK YONG
IPC: C02F11/123
Filed: 2002-09-12
Abstract: 본 발명은 각종 공장에서 발생되는 폐기슬러지를 탈수처리하기 위한 슬러지 탈수장치에 관한것으로 보다 상세하게는 폐수를 응집하기위해 응집제가 투입혼합되는 슬러지응집부(44)를 형성하고 배출구(45)통해 슬러지 상태의 폐수가 배출되어 망사형태로 구성된 시그너드럼(46)을 거치면서 물은 아래로 걸려지고 슬러지 찌꺼기만 통과하며, 일정한 장력을 가진 탈수장치(47)로 통과하여 폐기슬러지를 수개의 알루미늄누름판(2)이 체결된 궤도를 형성하여 펠트를따라 롤러(5)사이로 이송되어 가압프레스(3)에 의해 알루미늄누름판(2)을 가압탈수하여 슬러지의 함수율을 낮추고 부피를 줄여 슬러지의 처리 및 재활용이 용이하도록한 펠트타입의 슬러지 탈수장치를 제공하는 것이다 
     일반적으로 대단위 영업장이나 공장 등에서는 발생하는 하수 및 폐수를 처리 하기 위한 폐수처리 시스템이 사용되며, 상기 폐수처리 시스템은 폐수를 정화하는 과정에서 슬러지가 발생하게 되며, 이 슬러지는 주기적으로 제거해주어야하는 문제점이 있었다. 
     펠트(1)는 무한궤도를 형성하여 상하측의 두개로 구성되되 상측의 펠트(1)는 내측펠트(1a)를 추가하여 수분이 흡수되도록 하고, 하측의 펠트(1)는 탈수되는 수분이 하부으로 낙하되며, 상기 펠트(1)의 장력을 조절하기위한 펠트장력장치(11)를 구비하며, 
     궤도장치(2')는 궤도의 원활한 회전운동을 위해 가압프레스(3)에 의해 가압되어질때 양측 궤도면(4a)과의 마찰계수를 최소화하고 전체적으로 조밀하게 가압할수 있도록 하기 위해 체인(2a)에 베어링(2b)을 형성하며, 체인(2a)에 돌출편(2c)을 형성하여 알루미늄누름판(2)을 체결할수 있도록 구성하고, 
     알루미늄누름판(2)는 펠트와접하는 면에 수개의 구멍(2d)이 형성되어 균일하게 배치되어져 있어 가압프레스(3)에 의해 가압될때 슬러지의 물기를 신속하게 제거할수있도록 구성되며, 제거된 물기를 배출하기위해 다수의 배수부(2e)을 형성하고 체인(2a)의 돌출편(2c)에 통상적인 볼트나 너트의 체결수단으로 결합으로 이루어지며, 
     롤러(5)는 모터(21)에 의해 구동되는 구동 스프로깃(211)과 피동 스프로킷(212)으로 장치되어 궤도를 형성하고 상기 스프로킷을 따라 회전하는 롤러(5)와 치합되며, 일측에 롤러장력장치(22)를 구성하여 롤러(5)의 장력이 유지되도록 구성된다. 
     가압프레스(3)는 롤러(5)의 내측에 설치되어 가압프레스(3)에 실린더(31)를 장치하여 상기 궤도장치(2')의 알루미늄누름판(2)을 강한 힘으로 압착 할 수 있도록 구성되어 이루어지고, 
     상기와 같이 구성된 본 발명을 정화조에서 입자들이 응집될 수 있도록 응집제를 투여한 후 슬러지 상태의 폐수가 다수의 로울러를 따라 순환하는 롤러(5)의 상하 펠트(1) 사이에 투입되어 구동스프로킷과 피동스프로킷의 펠트(1)궤도 사이를 가압프레스(3)가 강한힘으로 압착하여 순환 진행하게 되므로서 로울러에 눌리는 압력에 의하여 펠트(1) 사이로 수분이 탈수되어 하부로 낙하되고 수분이 제거된 슬러지의 케익은 별도로 수집이송 또는 분리처리 할 수 있게 됨으로서 슬러지에 포함된 함수율을 크게 낮출 수 있으므로 생성되는 케이크의 부피를 감소시켜 처분 및 재활용 등의 후속 공정을 용이하게 할 수 있는 유용한 발명인 것이다
Patent KR-20040024082-A (KR)
Title: Charging system controlling device of electric vehicle
Inventor: YANG CHAE MO
IPC: H02J7/14
Filed: 2002-09-13
Abstract: PURPOSE: A charge system control apparatus is provided to protect a human body from an electric shock and ensure improved safety for driver, while preventing damages of the charge control system. CONSTITUTION: A charge system control apparatus comprises an earth leakage breaker(210); a charger(220) connected to the earth leakage breaker through a charge cable; a main contactor(230) electrically connected between the charger and a driving battery(235), wherein the main conductor controls flow of the power of the driving battery in accordance with the switching operation; and a motor controller(240) equipped with an earth leakage breaker control circuit which constitutes an electrical circuit in the power supply range between the earth leakage breaker and the charger, and automatically cuts off the power being supplied to the charger from the earth leakage breaker by controlling the earth leakage breaker upon occurrence of abnormal isolation of the charge system during battery charge.
Patent KR-20040024353-A (KR)
Title: Method of manufacturing binder for use in EL device
Inventor: CHOI BYEONG HO
IPC: H05B33/10
Filed: 2002-09-14
Abstract: PURPOSE: A method is provided to prevent defects of the electroluminescence device and reduce manufacturing time and costs, while achieving improved luminance of the electroluminescence device. CONSTITUTION: A method comprises a step of mixing a polymer resin and a first solvent having a high volatility and solubility in a container(100); a step of solving the polymer resin by heating the mixture at the temperature lower than the vaporization temperature of the first solvent; a step of evaporating and removing the first solvent by heating the resultant structure obtained in the previous step at the temperature higher than the vaporization temperature of the first solvent; and a step of mixing a second solvent to the resultant structure obtained in the previous step, wherein the second solvent has properties for solving the polymer resin and a volatility lower than the volatility of the first solvent.
Patent KR-20040027102-A (KR)
Title: Projection TV and Method for Controlling Motor of The Same
Inventor: KIM JUN TAE
IPC: H04N5/74
Filed: 2002-09-27
Abstract: PURPOSE: A projection TV is provided to drive a motor according to a generated voltage and a driving control signal, and to check/output a driving frequency of the motor, thereby stabilizing an initial driving of the motor and automatically controlling motor speed for improving product performance. CONSTITUTION: A power unit(30) captures external input power, decides a system from a frequency of the input power, and outputs frequency information. A controller(70) outputs a frequency control signal for controlling the frequency of the input power to a preset reference frequency, and outputs voltage level information and a driving control signal for driving a motor(10). A frequency controller(40) controls the frequency of the input power according to the frequency control signal. A frequency comparator(50) compares the reference frequency with a driving frequency of the motor(10), and outputs a result value. A voltage generator(60) generates a voltage. A motor driver(20) drives the motor(10), checks the driving frequency of the motor(10), and outputs the checked driving frequency to the controller(70).
Patent KR-20040040178-A (KR)
Title: Electrical cooker
Inventor: HWANG SEONG MAN
IPC: A47J27/08
Filed: 2002-11-06
Abstract: PURPOSE: An electric rice pot is provided to prevent other inner parts from breaking down when water flows in along a wire with a preventing device of a water drop. CONSTITUTION: An electric rice pot has a preventing device of a water drop. The preventing device of the water drop includes a first bent portion(20) and a second bent portion(30). The first bent portion is formed separate from a side of a through hole(12) to bend and draw a wire(10) from the side of the through hole. The second bent portion is formed to the side of the through hole to bend and draw the wire bent in the first bent portion toward a lower side of the through hole. First and second bent portion are protruded pins or ribs. A bent emphasizing portion is included to the preventing device of the water drop, extended from an end of the first bent portion downward. Thereby, inner parts of the electric rice pot are prevented from flowing in the water drop along the wire with the preventing device of the water drop.
Patent KR-20040042341-A (KR)
Title: Telephone and Method Transmissing Electronic Mail Conveniently
Inventor: SHIN GYE IN
IPC: H04B1/40
Filed: 2002-11-14
Abstract: PURPOSE: A telephone for simply transmitting E-mail and a method therefor are provided to quickly and accurately transmit the E-mail to a desired E-mail address although a sender inputs only a name of a recipient. CONSTITUTION: A memory unit(112) stores names and an E-mail addresses. A control unit(110) compares a name of a recipient inputted by a keypad(114) with the names stored in the memory unit(112), and reads an E-mail address of the recipient. A display unit(116) displays the E-mail address read in the control unit(110). A modulating and demodulating unit(118) modulates and demodulates data for transmitting an E-mail to the E-mail address displayed on the display unit(116) under the control of the control unit(110).
Patent KR-20040043020-A (KR)
Title: Diversity antenna apparatus for portable wireless terminal
Inventor: HA DONG IN
IPC: H01Q9/04
Filed: 2002-11-15
Abstract: PURPOSE: A diversity antenna device is provided to achieve improved diversity effect by spacing the diversity antenna from the main antenna, while allowing for ease of portability and preventing damages of the antenna. CONSTITUTION: A mobile terminal comprises a main body(201) embedded with a main board(203); and a folder(202) electrically connected to the main board through a flexible printed circuit board. A diversity antenna device comprises a first antenna protruded from the main body of the terminal, wherein the first antenna is used for transmission/reception of the terminal; and a second antenna spaced apart from the first antenna at the top of the main board embedded in the main body of the terminal, wherein the second antenna is used for diversity reception of the terminal.
Patent KR-20030051220-A (KR)
Title: Phosphor and phosphor slurry for color cathod ray tube
Inventor: NAKANO KOJI
IPC: H01J9/227
Filed: 2002-11-15
Abstract: PURPOSE: To provide a fluorophor for a color cathode-ray tube, having improved exposure sensitivity and a shortened exposing step for forming a fluorescent screen, and to provide a fluorophor slurry. CONSTITUTION: This fluorophor for a color cathode-ray tube is obtained by mixing a fluorophor with at least one yttrium (Y) compound or coating the yttrium (Y) compound on the surface the fluorophor, wherein the fluorophor emits by electron beam exciting and the yttrium (Y) compound is at least one selected from its nitrate, carbonate, oxalate, acetate and hydroxide, and the fluorophor slurry is obtained by dispersing the fluorophor with at least polyvinyl alcohol (PVA) and a bichromate.
Patent KR-20040048238-A (KR)
Title: Apparatus for controlling power of portable information terminal
Inventor: KIM HAN SEONG
IPC: H04B1/40
Filed: 2002-12-02
Abstract: PURPOSE: A power controller of a mobile terminal is provided to protect a stored data in the memory by preventing a system error possibly caused by change or shortage of a battery. CONSTITUTION: A capacity detector(107-41) detects remaining capacity of an internal battery or an external battery(107-2). The capacity detector(107-41) detects whether a system has been connected to a charger and outputs a corresponding result to a determining unit(107-42). The determining unit(107-42) generates the first and second emergency signals according to an output value of the capacity detector(107-41) and an operation mode state of the system, and outputs them to a CPU. The determining unit(107-42) outputs the first emergency signal to the CPU if a power source is not provided suddenly. The determining unit(107-42) outputs the second emergency signal to the CPU if power is too much consumed to operate a mobile terminal in a normal mode.
Patent KR-20030047827-A (KR)
Title: Structure for separating the high and low pressure turboexpanders of a gas turbine
Inventor: DEMEO ROGER
IPC: F02C7/18
Filed: 2002-12-09
Abstract: PURPOSE: A separating structure is provided to separate a high-pressure turbo-expander and a low-pressure turbo-expander in a gas turbine without lowering of turbine efficiency. CONSTITUTION: A structure for separating high/low-pressure turbo-expanders(12,13) of a gas turbine comprises a diaphragm having the function of supplying flows of cooling air; a pair of shaped plates(50',50") fixed to the diaphragm; and a sealing ring(60) supported by the shaped plates. The shaped plates form a gap(52) into which is blown cooling air which is drawn from a turbo-compressor(11) and is then sent to hot areas of the turbo-expanders. The sealing ring is designed to isolate the high-pressure turbo-expander and the low-pressure turbo-expander and to receive and distribute the cooling air obtained from the gap.
Patent KR-20040051460-A (KR)
Title: The silver ware omtibacteria and metals using fiber latex
Inventor: CHOI MYUNG BU
IPC: D06M11/00
Filed: 2002-12-11
Abstract: PURPOSE: A manufacturing method of functional fiber which is characterized by intercepting harmful electron wave and water vain radiation is characterized by using charcoal and metallic materials. CONSTITUTION: A manufacturing method of functional fiber using charcoal and metallic materials is as follows: burning oak at 1000deg.C to manufacture fine charcoal powder; composing 600g of the fine charcoal powder, 200g of cloisonne powder, 100g of nickel powder and 100g of aluminium powder to prepare solid matter; dissolving 800g of acrylic rubber in 1200g of a toluene solvent to manufacture a resin; composition-mixing the solid matter with the resin; and then coating nylon fiber with the mixture three-four times.
Patent KR-20040054881-A (KR)
Title: fuel feeding system for an LPI engine
Inventor: KIM IN TAK
IPC: F02M37/10
Filed: 2002-12-18
Abstract: PURPOSE: A fuel supply system of an LPI(Liquefied Petroleum Injection) engine is provided to discharge fuel remaining in a fuel supply line and a fuel return line to a bombe while an engine is cooled after stopping, thereby preventing the fuel leakage via injectors. CONSTITUTION: A fuel supply system of an LPI engine includes a micro tube(5) bypassing a pressure controller(3) mounted to a fuel return line(1). The micro tube has a diameter smaller than that of the fuel return line by 10 times or more. A check valve(7) is provided to a lower part of the micro tube. When an engine is stopped, fuel between a supply blocking valve and the pressure controller bypasses the pressure controller by the micro tube and is drained to a bombe.
Patent KR-20040058811-A (KR)
Title: Method for heat treatment of 2-phase stainless steel
Inventor: LEE SU CHAN
IPC: C21D8/00
Filed: 2002-12-27
Abstract: PURPOSE: A method for heat treatment of dual phase stainless steel is provided to secure corrosion resistance, prevent creep phenomena at high temperature and widthwise creep deformation of a material to be processed by growing grain size of the hot rolled material when continuously hot annealing a hot rolled material at high temperature. CONSTITUTION: The method comprises hot rolling and annealing steps of continuously annealing the hot rolled stainless steel for less than 60 seconds by controlling excess oxygen amount of an annealing furnace atmosphere to 6 to 8%, temperature of the hot rolled stainless steel to 1,060-1,100 deg.C and tensile stress applied to the hot rolled stainless steel to 0.3 to 0.55 kgf/mm¬2 after hot rolling 22Cr based dual phase stainless steel comprising 20 to 23 wt.% of Cr, 4.0 to 7.0 wt.% of Ni, 2.0 to 3.0 wt.% of Mo, 0.08 to 0.20 wt.% of N, 0.0005 to 0.0025 wt.% of Ca, 0.0010 to 0.0035 wt.% of B and a balance of Fe and other inevitable constituents; and cold rolling and annealing steps of continuously annealing the cold rolled stainless steel for less than 60 seconds by controlling excess oxygen amount of an annealing furnace atmosphere to 6 to 8%, temperature of the cold rolled stainless steel to 1,100-1,035 deg.C and tensile stress applied to the cold rolled stainless steel to 0.3-0.55 kgf/mm¬2 after cold rolling the steel annealed in the hot rolling and annealing steps.
Patent KR-20040061050-A (KR)
Title: Multi-layer P.C.B. blocking electromagnetic emission
Inventor: KIM GYU SEOP
IPC: H05K1/02
Filed: 2002-12-30
Abstract: PURPOSE: A multi-layer substrate is provided to prevent a leakage of high frequency component of signal layer, by forming the signal layer on the ground layer formed on a power layer. CONSTITUTION: A multi-layer substrate comprises a signal layer(11) on which a semiconductor chip for generating a high frequency component is disposed; a power layer(13) for supplying power; a ground layer(12) interposed between the signal layer and the power layer, and which suppresses a leakage of electromagnetic waves by preventing interferences of the high frequency component of the power layer and the low frequency component of the power layer; and a second signal layer(14) formed beneath the power layer, and which has a semiconductor chip disposed on the second signal layer, wherein the semiconductor chip does not generate a high frequency component.
Patent KR-20040061957-A (KR)
Inventor: LEE SANG GON
IPC: G09G3/20
Filed: 2002-12-31
Abstract: PURPOSE: A method for driving a gate pulse is provided to process efficiently motion pictures by improving a stepping phenomenon due to a convectional hold type driving method and the quality of picture data of an AM-LCD. CONSTITUTION: A TFT channel is opened and an output voltage of a source driver IC is applied to pixels while a gate driver IC outputs a Vgh(Gate high pulse voltage). The voltage applied to the pixels is maintained constantly while the gate driver IC outputs a Vgl(Gate low pulse voltage). An output of the gate driver IC is changed to the Vgl and the TFT channel is opened after the predetermined period of time. The electric charges are discharged from the pixels while the TFT channel is opened. Accordingly, the voltage applied to the pixels converges to 0.
Patent KR-20040062155-A (KR)
Inventor: JUNG YUN HO
IPC: H01L21/84
Filed: 2002-12-31
Abstract: PURPOSE: An active matrix display is provided to adjust the formation position of thin film transistor and permit thin film transistors to have similar electrical characteristics. CONSTITUTION: An active matrix display comprises a plurality of pixels arranged into a matrix; and one or more thin film transistors for controlling the pixels. Each of the thin film transistors has a polycrystalline silicon thin film where regular grain boundaries(166a) are arranged in the same numbers, same direction, and same intervals. The thin film transistor includes a gate electrode(112), a source electrode(132), a drain electrode(142), and a semiconductor layer(166) of a channel region.
Patent KR-20020029088-A (KR)
IPC: G06Q20/24
Filed: 2000-08-30
Abstract: 본 발명은 유통과정에 있어서 도난의 위험이 전혀 없는 유가 암호정보의 발행시스템의 실현을 목적으로 한다. 
     이에 따라, 소정의 자리수의 문자열로 이루어지는 암호정보을 축적하여 두는 암호정보기억수단(12)과, 소망의 금액을 선택 입력하는 요구액입력수단(14)과, 실제로 지불된 금액을 입력하는 입금액입력수단(16)과, 요구액과 입금액이 일치하는 경우에 암호정보와 금액에 관련하여 유가암호정보를 생성하는 유가암호정보생성수단(22)과, 유가암호정보를 격납하여 두는 유가암호정보기억수단(24)과, 유가암호정보를 출력하는 유가암호정보출력수단(26)을 구비하여 유가 암호정보 발행시스템(10)을 구성한다.
Patent KR-20020043221-A (KR)
IPC: C04B41/87
Filed: 2001-07-05
Abstract: 본 발명은 절삭날이 되는 경질소결체를, 공구모재의 전체코너, 또한, 윗면아래면에 형성된 자리홈에 납땜하고, 성능이 양호한 저코스트의 경질소결체 쓰로우어웨이팁을 제공하는것이다. 
     대표적인 땜납재료로서, 0.5∼65중량%의 Ti 및/또는 Zr을 함유하고 나머지가 Cu와 불가피불순물로 이루어진 땜납재료를 사용하고, 진공속 또는 불활성가스분위기 속에서 가열해서 경질소결체를 공구모재에 납땜한다.   또한, 상하1쌍의 자리홈사이의 공구모재의 두께는, 경질소결체 쓰로우어웨이팁 전체두께의 30%∼90%로하고, 경질소결체의 절삭날길이는, 0.5㎜∼4㎜로한다.
Patent KR-20020037361-A (KR)
Title: Manipulating header fields for improved performance in packet communications
IPC: H04L12/801
Filed: 2000-11-08
Abstract: In packet communication paths that include header compression, header fields of packets to be communicated are altered. The alteration of the header fields does not disturb their functionality, and is transparent to the header compression scheme of the packet communication path. The altered header fields are provided for compression by the header compression scheme, resulting in improved performance of the header compression scheme. Performance improvements can also be achieved in packet communication paths that do not use header compression, by violating the integrity of header fields in packets to be transmitted over the packet communication path.
Patent KR-20020047275-A (KR)
Title: Method and system for graphic design
IPC: G06F3/041
Filed: 2000-10-20
Abstract: A system is provided for enabling personal editorial and advertising content delivery. The system has a publication server which receives information regarding interests of a user and selects editorial content in accordance with the information. The publication server also receives information regarding a locality and demographic of the user and selects advertising content in accordance with the information and the published editorial content. Further, the publication server publishes a personalised publication with the selected editorial and advertising content.
Patent KR-20020058036-A (KR)
IPC: C07D409/06
Filed: 2000-11-21
Abstract: 화학식 (I)의 화합물 및 그의 염 및 치료제로서의 용도. 
     <화학식 I> 
     
       
     
     상기 식에서, 
     A는 수소원자, 히드록실, C 1-3 알콕시기, 히드록시(C 1-6 알킬)기, (C 1-3 알콕시) (C 1-3 알킬)기, 티올, (C 1-6 알킬)술파닐 또는 할로겐을 나타내고, 
     B 및 D는 서로 독립적으로 수소원자, C 1-6 알킬기, 플루오로(C 1-6 알킬)기 또는 퍼플루오로(C 1-2 알킬)기를 나타내거나, 또는 B 및 D는 함께 옥소를 형성하고, 
     R 1 은 페닐, 나프틸, 또는 4 또는 5개의 탄소원자 및 헤테로원자로서 산소, 황 또는 질소를 포함하는 헤테로아릴을 나타내는데, 상기한 페닐, 나프틸 또는 헤테로아릴은 할로겐, 히드록실, 니트로, 아미노, 아지도, C l-6 알킬기, 히드록시(C 1-6 알킬)기, (C 1-6 알킬) 카르보닐기, (C l-6 알킬)아미노기, 디(C 1-6 알킬)아미노기, 플루오로(C 1-6 알킬)기, 퍼플루오로(C 1-2 알킬)기, C 1-6 알콕시기, 페닐 및 벤질 및 벤질옥시기로 구성된 군으로부터 선택된 1, 2 또는 3개의 치환체로 치환될 수 있으며, 
     R 2 및 R 3 는 서로 독립적으로 수소원자, 할로겐 또는 C 1-6 알킬기를 나타내고, 
     R 4 는 수소원자, 히드록실 또는 할로겐을 나타내고, 
     R 5 및 R 6 는 서로 독립적으로 수소원자, C 1-6 알킬기, C 2-6 알케닐기, C 3-6 시클로알킬기, C 3-6 시클로알케닐기, 플루오로(C 1-6 알킬) 기 또는 퍼플루오로(C 1-2 알킬) 기를 나타내거나, 또는 R 5 및 R 6 는 함께 C 2-6 알킬렌쇄 또는 C 3-6 알케닐렌쇄를 형성하여 이들과 결합된 질소와 함께 피페리딜, 아제티디닐 또는 피롤리딜과 같은 헤테로사이클을 형성하는데, 이 헤테로사이클은 C 1-4 알킬기로 경우에 따라 치환된다.
Patent KR-20020064967-A (KR)
IPC: H04W4/02
Filed: 2001-10-15
Abstract: The present invention encompasses an electronic device having a method of securing an electronic device against unauthorized removal and usage outside a predetermined geographical boundary. A security lockout system is provided. Upon activation of the system, a geographical boundary is determined. If the electronic device is moved out of the geographical boundary, an alarm function is activated and all th functions of the electronic device are locked out.