baber/WOPTO huggingface dataset:
Patent KR-19990063647-A (KR)
Title: 섬유강화막을 갖는 표면복제 연료전지
IPC: H01M8/04
Filed: 1996-09-12
Abstract: 소형의 표면복제 연료전지는 섬유 강화 다공성 중앙막(3)과 2개의 다공성 외측막(23,31)을 갖는다. 박막 촉매 및 금속 전극재료는 이온, 광선 충돌, 에칭 및 진공적층과 같은 여러 가지 기술에 의해 중앙막의 양측면에 적층된다. 화합물 연료를 위해 2개의 촉매가 적층된다. 첫 번째 촉매(13)는 내측면 복제 전극(9)을 형성하고, 두 번째 촉매는 구멍(65)의 내측에 위치되어 전극과 전해질(21)로부터 확산되기 전에 수소를 배출토록한다. 소수성막(19)은 전극막위에 적층되어 전해질의 위치를 조절하고 전극을 강화시킨다. 촉매면 활동면적은 위는 다공성 비전해질 기재(45)로부터 촉매막을 분리하고 기재와 촉매막사이의 공극을 진해질로 충전함으로써 극대화된다. 연료전지의 2극이 아닌 스택은 중앙막에 전지를 기하학적으로 위치시킴으로써 관통막 접속, 관통전지 물흐름,박막 전극 및 전극파괴를 제공토록한다. 연료전지는 전해질로부터 반응제 가스를 발생하는 전해 전지로서 작동할 수도 있다
Patent KR-19990064034-A (KR)
Title: 곤충 기피 제품
IPC: A01N25/18
Filed: 1996-10-01
Abstract: 본 발명은 곤충 기피용의 휴대용, 일회용 제품을 제공한다.  제품은 곤충 기피제로 함침될 수 있는 섬유 기재를 포함한다.  한 양태에서는, 섬유 기재는 다공성 커버와 차단층 사이에 위치하고, 외부 모세관을 갖는 섬유를 포함한다.  다공성 커버는 점점 가늘어지는 천공을 갖는 천공된 플라스틱 필름을 포함할 수 있다.  곤충 기피제는 파쇄가능한 패킷에 함유되어 파쇄가능한 패킷이 파쇄될 때 곤충 기피제가 천공 필름을 통해 방출되기위해 섬유 기질을 향할 수 있다.
Patent KR-19990067206-A (KR)
Title: 화이트플라이 구제용 화합물
IPC: C07C43/29
Filed: 1996-10-28
Abstract: 본 발명은 화이트플라이를 구제하기에 효과적인 양의 1종 이상의  하기 화학식 (Ⅰ)의화합물을 내성 계통의 화이트플라이에 의해 감염된 장소에 살포시킴을 포함하여, 상기 장소에서 이들을 구제하는 방법에 관한 것이다: 
       화학식 (Ⅰ) 
     상기 식에서, 
     X는 수소 또는 플루오르이며; 
     Y는 CH 2 , CHF 또는 0이고, Z는 CH 2 이거나; Y는 CH 또는 CF이고, Z는 CH이거나(Y와 Z는 이중 결합을 형성한다); Y는 CH 2 이고, Z는 CO이며; 
     R 1 은 임의로 치환된 페닐이며; 
     R 2 은 수소이고, R 3 은 CF 3 , 이소프로필 또는 시클로프로필이거나; R 2 및 R 3 은 메틸이거나;  R 2 및 R 3 은 함께 시클로프로필 고리를 형성하며; 
     Ar은 하나 이상의 할로겐, 알콕시, 할로알콕시, 메틸렌디옥시, C 1 -C 6 알킬 또는 할로알킬기에 의해 임의적으로 치환된 페닐 또는 나프틸기이다.
Patent KR-19990087553-A (KR)
Title: 가교할 수 있는 보호 콜로이드
IPC: D21H17/39
Filed: 1997-03-06
Abstract: 본 발명은 분자량 ≤500,000를 가지며, 
     a) 설폰산 또는 설포네이트기 함유 모노머 단위 20-95wt%, 
     b) N-메틸올 또는 N-알콕시메틸기 함유 모노머단위 최소한 4wt%, 
     c) 물불용성에틸렌 불포화 화합물과 개시제 래디컬 또는 조정제분자의 소수성 말단기로 이루어진 그룹에서 선택한 소수성 모노머 단위 0.1~20wt% (wt% 함량은 그 코폴리머의 총중량을 기준으로 함)으로 구성하는 수용성 가교할 수 있는 보호 콜로이드에 관한 것이다. 
     그 모노머단위 a)의 중량함량을 기준으로 하여 설폰산 또는 설포네이트기함유 모노머단위의 함량 50wt% 까지는 카르복실기 함유 모노머단위 d)또는 아마이드기의 함유 모노머단위 e)에 의해 선택치환시킬수 있다.
Patent KR-20000010721-A (KR)
Title: Digital to analogue converter with reference signal
Inventor: FLYNN DAVID WALTER
IPC: H03M1/06
Filed: 1996-08-06
Abstract: PURPOSE: An improved digital to analogue converter is provided which allows an increased proportion of digital circuitry to be used and requires a low number of connections between the digital portion of the circuit and the analogue portion of the circuit. CONSTITUTION: A digital to analogue converter having a plurality of output stages(46). Each output stage(46) includes a tri-state buffer(54) that outputs an on-signal, an off-signal or a pulse width modulated signal PWM that is selected by a multiplexer(52) that operates under control of a chord decoder(50) that is responsive to exponent bits within the input digital signal value. If a pulse width modulated signal is selected, then its duty cycle is controlled by a pulse width modulated decoder(48) that is responsive to mantissa bits within the input digital signal value. A further output provides a pulse width modulated signal of a predetermined duty cycle that can be used as a reference signal to compensate for variations in the operation of the rest of the digital to analogue circuit.
Patent KR-20000016471-A (KR)
Title: Metal ion reduction method of amino-chromatic chromophores and their use in the synthesis of low metal bottom anti-reflective coatings for photoresists
Inventor: RAHMAN M DALIL
IPC: G03F7/09
Filed: 1997-06-06
Abstract: PURPOSE: Described are a process for producing bottom anti-reflective coating compositions having a very low level of metal ions utilizing specially treated anion exchange resins, and also a method for producing semiconductor devices by producing photoimages on a substrate using such bottom anti-reflective coating compositions. CONSTITUTION: The formation process of bottom anti-reflective coating composition comprises the steps of making a solution of an aminoaromatic chromophore in an electronic grade casting solvent; adding an electronic grade polar solvent to make a homogenous solution; reacting the low metal solution and a polymer with an anhydride group at a temperature between about 120 to 160°C for about 6-8 hours; and adding deionized water to the reaction product, stirring for about 30-90 minutes, decanting the water layer, distilling to remove residual water and thereby producing a bottom anti-reflective coating composition having levels of sodium and iron ions less than 100 ppb each.
Patent KR-19990068030-A (KR)
Title: 반도체 메모리 장치
IPC: G11C7/06
Filed: 1999-01-20
Abstract: 개시된 내용은, 선택센스증폭기열들(102-0∼102-2)를 선택하기 위한 논리게이트들의 수가 감소된 반도체메모리장치(100)에 관한 것이다. 
     센스증폭기열들(102-0∼102-2)는 블록어드레스값들(X5∼X0)에 따라서 선택된다. 선택된 센스증폭기열(102-0∼102-2)의 순서는 하위의 2개의 연속된 블록어드레스값들(X1 및 XO)내의 그레이코드에 해당한다. 이런 배열에서는, X1은 프리디코딩신호(C1)으로서 센스증폭기선택회로(106-1) 내의 NAND게이트(110-0)로 인가될 수 있다. X0은 프리디코딩신호(C2)로서 센스증폭기선택회로(106-2) 내의 NAND게이트(11O-1)로 인가될 수 있다. 디코딩값 내신에 프리디코딩값들(XO 및X1)을 이용하는 것에 의해, 센스증폭기열(102-0∼102-2)를 선택하는데 필요한 로직리를 줄일 수 있다.
Patent KR-20000051542-A (KR)
Inventor: PARK JI YEON
IPC: G01S13/76
Filed: 1999-01-23
Abstract: PURPOSE: A method of measuring distance between a base station and a mobile phone that is relevant to a cellular mobile telephone system is provided to measure a distance that considers errors by evaluating errors between the distance measured by GPS(Global Positioning System) and the distance measured by RTD(Round Trip Delay) between a base station and a mobile phone. CONSTITUTION: A method of measuring distance between a base station and a mobile phone comprises the steps of: selecting many measuring points in a cellular service range of a particular base station; measuring a RTD(Round Trip Delay) between a mobile phone located in a first measuring point and the base station; by the measured RTD; measuring RTD distance between the base station and the mobile phone; collecting a GPS(Global Positioning System) location information of a base station and a mobile phone; measuring a RTD and a GPS distance between a mobile phone that is located in a different position and the base station with managing the mentioned steps repeatedly at the other measuring point; measuring a distance of errors between a RTD and a GPS distance that are determined at each measuring point; and determining the average of the distances of errors measured at all measuring point.
Patent KR-20000055119-A (KR)
Inventor: CHOI JIN TAK
IPC: F24F13/00
Filed: 1999-02-03
Abstract: PURPOSE: A method for controlling an outdoor fan of a multi-type air conditioner is provided to control a cooling temperature in detail by controlling flow toward an outdoor heat exchanger in several steps by increasing or decreasing rotation velocities of two outdoor fans. CONSTITUTION: A method for controlling an outdoor fan of a multi-type air conditioner having first and second cooling systems respectively operated by independent cooling cycle, includes the steps of operating first and second outdoor fans of the first and second cooling systems according to an ambient temperature as the operation of the air conditioner is begun, detecting whether either the first or second cooling system is operation in combination or individually under the state that the first and second outdoor fans are operating, controlling rotation velocities of the fans according to the ambient temperature in case of combination operation, while detecting a pyong(=3.954 sq. yds.) of a room to be cooled in case of an individual operation, and re-controlling the rotation velocities of the fans according to a temperature of a compressor inlet, a refrigerant discharging pressure of the compressor, and the ambient temperature after dividing the detected pyong into a smaller pyong, middle pyong or a larger pyong according to a predetermined data value.
Patent KR-20000056349-A (KR)
Inventor: LEE KYUNG DON
IPC: G01J1/02
Filed: 1999-02-19
Abstract: PURPOSE: An apparatus for optical sensing of a laser welding quality monitoring system is provided to test status of a melting pool and quality of a welding bead in real time by sensing plasma optical signals generated when metal vapour is ionized into plasma by laser beams during the laser welding, thereby monitoring the inferior welding by detecting the optical signals generated during the laser welding. CONSTITUTION: An apparatus for optical sensing of a laser welding quality monitoring system includes a lens diameter passing part(10) for shutting off heat generated in a welding part and focusing optical signals by controlling optical amount, and a sensor body part(20) for verifying and controlling directions of optical signals passing though the lens diameter passing part and classifying the optical signals by wavelength to sense.
Patent KR-19990072968-A (KR)
IPC: H04N7/50
Filed: 1999-02-26
Abstract: 화상신호 처리 시스템으로서, 입력 인코딩 화상신호의 인코딩 파라미터의 대표값(들)로서 인코딩된 비트값 및/또는 평균 양자화 크기를 발생하며, 입력 인코딩된 화상신호를 디코딩하고, 디코딩된 화상신호를 발생하며, 발생된 디코딩된 화상신호와 함께 인코딩 파라미터를 출력하는 디코더, 및 디코딩된 화상신호를 인코딩 파라미터로 인코딩하는 인코더를 포함하는 화상신호 처리 시스템을 개시한다.
Patent KR-20000056843-A (KR)
Inventor: LEE JONG HYUN
IPC: F25D29/00
Filed: 1999-02-26
Abstract: PURPOSE: An apparatus and a method for controlling a refrigerator are provided to conveniently check erroneous states or abnormal operation parts of the refrigerator for proper repair on the basis of error data stored in a data storing part by storing a predetermined state data related to an error signal detected by a plurality of detection elements of each operation parts of the refrigerator. CONSTITUTION: A method for controlling a refrigerator includes the steps of detecting a state of power supply, operation mode, and driving of the refrigerator with a plurality of detection elements(S2), storing the detected state data in a data storing part under the control of a control part when any detected state is an erroneous state(S3,S4), and displaying the stored state data, wherein the storing part is to be an EEPROM.
Patent KR-20000059633-A (KR)
Inventor: KWON TAE IN
IPC: B62D25/20
Filed: 1999-05-03
Abstract: PURPOSE: An angle meter for measuring an angle of elevation of a satellite antenna is provided to simplify the structure of the angle meter to carry conveniently. CONSTITUTION: In an angle meter for measuring an angle of elevation of a satellite antenna, a portable thin film(1) having a straight side(2) is punched with a plurality of through holes(3) to be respectively inserted with axes formed of wire, fiber and hair having a smaller diameter than the through holes. The through holes are disposed in such a manner that the straight side of the thin film forms different angles of elevation by the gravity, when the axes are sequentially inserted in the through holes. Around the through holes the numbers(4) of the angles of elevation are recorded. The straight side formed with a desired angle of elevation is approached the satellite antenna and the angle of elevation of the straight side is accorded with the angle of elevation of the satellite antenna.
Patent KR-19990046049-A (KR)
Title: 이면번짐을방지할수있는한지의제조방법
IPC: D21F11/00
Filed: 1999-03-17
Abstract: 본 발명은 한지제조방법에 관한 것으로 상세히는 이면으로 먹물이 베어나오는 것을 방지하는 기능을 갖는 고급한지의 제조방법을 새로이 제시할 목적으로 안출된 것이다. 
     본 발명은 이를 위하여 저증,흑피,백피,자비,세척,표백,고해단계를 거쳐 얻어지는 닥 9-11%중량,하드펄프 15-25 %중량, 소프트펄프 1-25%중량, 고지 45-55%중량,상기한 각 구성요소 총량의 0.35-0.45%중량의 유백색에멀젼을 초지통에 넣고 혼합한 후 초지,건조,선별 및 재단공정을 통하여 제조되는 것을 특징으로 하는 이면번짐을 방지할 수 있는 한지의 제조방법을 제시한다.
Patent KR-20000060756-A (KR)
Inventor: KIM SEON HUI
IPC: B41J2/045
Filed: 1999-03-19
Abstract: PURPOSE: An ink jet printer head using piezo-electric effect and a method thereof are provided to simplify the structure and the manufacturing process by integrally forming a nozzle and an ink manifold and prevent ink counterflow in case of discharging ink. CONSTITUTION: An ink jet printer head using piezo-electric material includes a nozzle plate and a vibration plate at both sides of a bulk silicon substrate forming a pressure chamber(1a) and a common ink manifold(4a) with having a partition therebetween, wherein piezo-electric plates attached to a nozzle(2a) of the nozzle plate and the outside of the vibration plate, are integrally formed to opposite each other with having the pressure chamber, an ink flow channel formed in the partition wall to flow ink of the common ink manifold into the pressure chamber, and the vibration plate formed with ZrO2 thick film of 8-10 micro meter in thickness.
Patent KR-20000065956-A (KR)
Inventor: LEE JIN SU
IPC: G11B20/06
Filed: 1999-04-12
Abstract: PURPOSE: A video stream searching system performs a searching operation of a video stram for a searching time required by a user and at a searching speed input by a user, thereby providing a convenience to the user. CONSTITUTION: A video stream searching system comprises a calculating portion for calculating an information of a substantial searching speed from an entire searching time input by a user according to a searching condition selected by the user, and a displaying portion for applying the calculated information of the searching speed by a video stream section to a displaying speed and then displaying the video stream. In the system, The searching speed by a video stream section is calculated at a real time according to the entire searching time to display the video stream, or calculated from the entire searching time and a relative speed information provided to the video stream segment to display the video stream. The relative speed information is an information responding to an image of the video stream or a motion size.
Patent KR-19990088195-A (KR)
Title: 디지털신호처리회로와이것을사용하는오디오재생장치
IPC: H03H17/06
Filed: 1999-05-11
Abstract: 좌채널 입력오디오신호에 대해서는 청취자의 머리외부의 음상을 정위하기 위하여 임펄스응답을 재현하는 디지털 필터(30LL, 30LR)가 설치된다.    우채널 입력오디오신호에 대해서는 청취자의 머리외부의 음상을 정위하기 위하여 임펄스응답을 재현하는 디지털 필터(30RL, 30RR)가 설치된다.    가산회로(7L)는 디지털 필터(30LL, 30RL)의 출력신호를 서로 가산하고, 가산회로(7R)는 디지털 필터(30LR, 30RR)의 출력신호를 서로 가산한다.    가산회로(7L, 7R)의 출력신호가 헤드폰에 공급됨으로써, 좌채널 및 우채널 입력오디오신호의 재생음상이 청취자의 머리외부에 정위(定位)된다.    각각의 디지털 필터(30LL∼ 30RR)에서 샘플링레이트는 재현되는 관련된 임펄스응답의 응답시간대에 따라서 변경된다.
Patent KR-19990068473-A (KR)
Title: 오존발생방전관및이를이용한오존발생장치
Filed: 1999-05-24
Abstract: 본 발명은 오존 발생 방전관 및 이를 이용한 오존 발생장치에 관한 것으로서, 유전체 파이프와, 상기 파이프의 내면에 밀착된 금속박판과, 상기 유전체 파이프의 중심축을 관통하는 지지대와, 지지대의 둘레에 일측 말단이 고정되고 타측 말단이 상기 금속박판에 밀착되어 있는 금속브러시와, 상기 파이프의 양 말단과 상기 지지대를 고정연결하는 연결판으로 이루어지는 방전전극과; 상기 유전체 파이프를 내부에 포함하며 내면의 반지름이 상기 파이프의 외면의 반지름보다 0.5 ∼ 3.0 mm큰 금속파이프와, 상기 금속파이프의 외면을 감싸고 있는 전극용열전반도체로 이루어지는 접지전극;을 포함하는 방전전극을 제공한다. 
     본 발명에 의한 방전관은 종래 도금에 의한 방전관보다 제작 및 유지관리가 용이하고, 열전반도체를 이용하여 방전관의 온도를 적절하게 조절할 수 있으며, 방전관 간극내의 공기흐름을 와류로 만들어주어 오존 생산효율을 증대시킨다.  또한 본 발명에 의한 오존 발생장치는 방전관에 공급되는 공기를 간편하고 정확하게 제습할 수 있게 한다.
Patent KR-20010001345-A (KR)
Inventor: CHOI SANG HO
IPC: H04B1/034
Filed: 1999-06-03
Abstract: PURPOSE: A hands-free unit is provided to use a speaker pre-installed in a car so that the configuration can be simplified, and to automatically cut off signals outputted to the speaker from a car audio during speech. CONSTITUTION: When performing speech with hands-free, a transmitting voice signal inputted from an external microphone(30) through the first connection unit(70) is inputted to the first low frequency amplifier(12) of the hands-free unit(100). The first low frequency amplifier(12) amplifies the transmitting voice signal, and inputs the transmitting voice signal to a cellular phone(20) through the second connection unit(80). The receiving voice signal inputted from the cellular phone(20) through the second connection unit(80) is amplified in the second low frequency amplifier(13) of the hands-free unit(10) and inputted to an automatic signal selector(14). If the receiving voice signal is inputted from the second low frequency amplifier(13), the automatic signal selector(14) selects the receiving voice signal outputted from the second low frequency amplifier(13) through automatically switching an output mode, and outputs the selected receiving voice signal to a speaker(60) for cars through the first connection unit(70). The speaker(60) plays voice through mechanical vibration according to the receiving voice signal. When not performing speech with hands-free, the automatic signal selector of the hands-free unit(10) selects a low frequency voice signal inputted from a car audio(40) through the first connection unit(70), and outputs the selected voice signal to the speaker(60) through the first connection unit(70). The speaker(60) plays voice through mechanical vibration according to the low frequency voice signal.
Patent KR-20000016878-A (KR)
Inventor: PARK DONG JIN
IPC: G03F7/42
Filed: 1999-06-07
Abstract: PURPOSE: A resist remover or a resist removing composition is provided to effectively remove a resist as well as polymer and organometallic polymers. CONSTITUTION: The resist remover comprising alkoxy N-hydroxyalkyl alkanee amide, the amide being represented by the formula 1:£Formula 1|R4-O-R3-CO-N-R1-R2-OH wherein R1 is a hydrogen atom, a C1-C5 hydrocarbon, or an aromatic hydrocarbon having one to three aromatic ring structures; R2 is a C1-C5 hydrocarbon or an aromatic hydrocarbon having one to three aromatic ring structures; and R3 and R4 are independently a C1-C5 hydrocarbon. Particularly, in the formula 1, R1 is H; R2 is -CH2CH2-; R3 is -CH2CH2-; and R4 is -CH3.
Patent KR-20010002317-A (KR)
Title: Alternating current sensor
Inventor: LAU CHI-SANG
IPC: G01R15/18
Filed: 1999-06-14
Abstract: PURPOSE: An alternating current sensor is provided to measure accurately the value of an alternating current by forming a transformer with two sets of secondary wires. CONSTITUTION: An alternating current sensor is a transformer structure like a core and includes a primary wire and a secondary wire. The core is made of a material of high magnetic permeability. The primary wire(input current wire) has a conductive wire wound around the core. The input current wire is connected with an alternating current circuit for measuring an input/output voltage of the sense resistor. The secondary wire is comprised of an output current wire and a measurement current wire. The output current wire is made of a material, which has a low temperature coefficient and high stability in resistance, and has a short circuit in both end parts by soldering. Both end portions of the measurement current wire are connected to a voltage meter.
Patent KR-20000006365-A (KR)
Inventor: TAKUMASAKAJU
IPC: G03B17/30
Filed: 1999-06-22
Abstract: PURPOSE: Camera and refilling apparatus for cartridge of the camera is provided to subdue the limitation of the conventional camera and refilling apparatus for cartridge that has possibility to loose the thrust force at the front section of the film when the film buckled by applied force. CONSTITUTION: The camera and refilling apparatus for cartridge of the camera comprises cartridge collecting the film, cartridge spool winding the film, cartridge room, cover of the cartridge opening or closing the cartridge room, packing element preventing the light and assembled in insertion hole of the cartridge, bearing enabling the cartridge spool to rotate situated at the cover of the cartridge, hinge, axis penetrating the hinge and the cover of the cartridge, and cartridge insertion element inserted into the camera.
Patent KR-20000011335-A (KR)
Inventor: GRIM MARKS
IPC: G01N21/53
Filed: 1999-06-28
Abstract: PURPOSE: An apparatus for inspecting a function of dispersed light smoke sense is to be satisfactorily operated for the sense to be inspected in every arranged location and to be easily adjusted to other senses. CONSTITUTION: An apparatus for inspecting a function of dispersed light smoke sense comprises:a measurement chamber(5) equipped with a measurement light receiver(7); and an adaptor(1) having an inspection light source(3) to be synchronously operated as the light pulse of the measurement light source(6) to provide the inspection light pulse for the measurement light receiver(7); and a detector(2) inducted to electromagnetic field generated by the current pulse of measurement light source(6), controlling the inspection light source(3) and formed by induction coil.
Patent KR-20010009197-A (KR)
Title: Band pass filter for tuner
Inventor: KIM SEONG CHEOL
IPC: H03H7/06
Filed: 1999-07-08
Abstract: PURPOSE: A band pass filter for a tuner is provided to operate without a discrete device such as an inductor in the tuner and band-pass filter a difference component. CONSTITUTION: The device extracts the difference component in a mixer signal including the difference and sum components between an RF signal having a very high frequency or an ultra high frequency of band and a signal for selecting channels. A low pass filter(60) filters the low pass component of the mixer signal to output the filtered results. A high pass filter(80) filters the high band components of the filtered results responding to the current for bias input from the external to output the filtered results as the difference components. The low pass filter includes the first capacitor connected between the mixer signal and the results filtered from the low pass filter, and a resistor connected between the results filtered from the low pass filter and the reference voltage.
Patent KR-20000016948-A (KR)
Inventor: ONDAKIYOSHI
IPC: D01D11/00
Filed: 1999-07-16
Abstract: PURPOSE: A heater controlling apparatus for controlling a temperature of a heater is provided to remove a conversion error, to improve a accuracy of a temperature control and to compact a temperature controlling apparatus. CONSTITUTION: The heater controlling apparatus controlling a power of the heater in the basis of a measured value by a temperature sensor comprises: (a)a temperature controlling unit measuring a temperature and establishing a temperature; and (b)a power controlling unit with a power element controlling a power of the heater, integrated with the temperature controlling unit. In the apparatus, one central processing unit directly drives a gate drive circuit for the power element according to the measured temperature.
Patent KR-20010010549-A (KR)
Inventor: JANG DEOK JIN
IPC: H04B1/40
Filed: 1999-07-21
Abstract: PURPOSE: A power saving method of a mobile wireless terminal is provided to memorize previously used channel data in the mobile wireless terminal, and to supply memorized channel data whenever supplying power to a PLL(Phase Locked Loop), so as to reduce power consumption. CONSTITUTION: A controller checks whether a power key of a key input unit is pressed(S101). If the power key is pressed, the controller controls a regulator to supply power to a receiving unit, a transmitting unit and a PLL(S102). The controller sets a best channel and calculates initialization and a corresponding channel data value(S103). The controller memorizes the calculated channel data value in an internal memory(S104). The controller presses a power key or controls a regulator for entering a slip mode, to cut off power supply to the PLL(S105). If the PLL is turned on, the controller checks whether a channel change exists(S106,S107). If the channel change exists, the controller calculates a new channel data value(S108). The controller supplies the new channel data value to the PLL to enable transceiving(S110). If the channel change does not exist, the controller reads a prior channel data value memorized in an internal memory(S109), and the step of S110 is progressed.