baber/WOPTO huggingface dataset:
Patent KR-20000015352-A (KR)
Title: Circuit for adjusting an automatic gain in a will(wireless local loop) system
Inventor: LEE KYEONG HAN
IPC: H04B7/24
Filed: 1998-08-28
Abstract: PURPOSE: An AGC(Automatic Gain Control) circuit is provided to regularly adjust a gain of an IF(Intermediate Frequency) signal, to the rate of eight-bit on an IF board in a wireless local loop(WILL) system. CONSTITUTION: An AGC(Automatic Gain Control) circuit in a base station of a wireless local loop(WILL) system, amplifies and attenuates an IF(Intermediate Frequency) signal gain in the regular level, according to an inputted voltage control, so that the gain maintains the regular value, after filtering a required band of the IF signal, outputted rom a RF(Radio Frequency section) in the base station of the WILL. The AGC circuit removes noises of an I signal and a Q signal through an I,Q mixer, a low-pass filter, and an OP AMP(Operational Amplifier), and amplifies in the regular level. The amplified I signal and the Q signal is converted to eight-bit digital data, is temporarily latched, and is outputted to a channel card in the base station. The eight-bit digital data is address-inputted through a memory element called RPROM, operated according to a system clock. The stored eight-bit gain control data is outputted by being pre-calculated according to the inputted address, and the outputted gain control data is converted to an analog signal by integrating, and is outputted after adding up to the analog.
Patent KR-20000015627-A (KR)
Title: Capillary tube for refrigerator and drier connecting device
Inventor: OH SE KYUNG
IPC: F25B41/00
Filed: 1998-08-31
Abstract: PURPOSE: A capillary tube for a refrigerator is provided to prevent the URT solution from percolating into the internal phase by reducing an outlet hole which is formed on the internal phase e. CONSTITUTION: The capillary tube for a refrigerator has:an apparatus chamber(200), which installs a compressor(300) and the like, provided on the lower area of the rear plate of a refrigerator; the compressor fixed by the fixing piece on a (210) installed on the lower area of the apparatus chamber; a suction pipe(310) and a venting pipe(320) respectively connected to an end of the compressor; a drier(500) installed on a side of the compressor to eliminate the vapor and the oil component in a refrigerant gas condensed at a condenser; and the drier(500) of which end is connected to an end of a capillary tube(400) so the refrigerant gas as to be transmitted to the drier.
Patent KR-19990029501-A (KR)
IPC: C07D207/16
Filed: 1998-09-03
Abstract: The present invention relates to carbapenem derivatives of Formula I, wherein X is carbonyl or sulfonyl, and a preparation method thereof. The carbapenem derivatives of the invention have excellent antibacterial properties and are thus useful as antibiotics.
Patent KR-20000020201-A (KR)
Title: Audio dialing device for mobile telephone and audio dialing method
Inventor: KIM KYUNG SEON
IPC: H04M1/26
Filed: 1998-09-18
Abstract: PURPOSE: Audio dialing device for a mobile telephone uses a vocoder's feature pa RAMeter not audio signal, and performs a real time implementation by a software method without a hardware addition to a prior terminal. CONSTITUTION: Audio dialing device includes an input interface(110), audio period detector(120), character detector(130), audio registration part(140), audio recognition part(150), and a result output part(160). The input interface detects audio feature pa RAMeter from a packet data per a frame generated from vocoder. The audio period detector detects audio period by using the audio feature pa RAMeter. The feature detector detects a feature of audio signal for audio recognition in the detected audio period. The audio registration part registers the feature of the audio signal transmitted from the feature detector into a database. The audio recognition part compares the audio signal registered in the database with a dialing sound by using the feature of the audio signal for audio recognition. and selects the nearest audio signal, The result output part outputs audio signal and telephone number corresponded to the audio recognition result. Thereby, the method performs a real time implementation by a software method without a hardware addition to a prior terminal.
Patent KR-20000020573-A (KR)
Title: Method for manufacturing coo mark of semiconductor package and structure of mold used therein
Inventor: PHYO EUN YOUNG
IPC: H01L23/544
Filed: 1998-09-22
Abstract: PURPOSE: A method for manufacturing COO(country of origin) mark of semiconductor package and structure of mold used therein are provided to produce various semiconductor package because COO mark is formed in any minimum area. CONSTITUTION: A method for manufacturing COO mark of semiconductor package comprises a step of printing an ellipse COO mark in the bottom of the mold for forming the package body, and a step of forming the COO mark together in molding process. The structure of mold comprises a COO mark(13) parallel to the side of the mold(12) in the one edge in its bottom. The mark(13) is separated from the mold(12).
Patent KR-20000021245-A (KR)
Title: Small inverter for driving battery having turn-on-and-off function
Inventor: LEE JONG GIL
IPC: H02M7/519
Filed: 1998-09-28
Abstract: PURPOSE: A small inverter is provided to give high output to the load, by obtaining high resonant frequency. CONSTITUTION: A small inverter for driving a battery having a turn-on-and-off function comprises: a power supply section for supplying DC(Direct current) power supply to a small inverter; a power supply switching section for blocking the DC power supply, and for selecting the supply; an oscillating section for oscillating by connecting a plurality of push-pull transistors; a turn-on-and-off section for independently varying a turn-on-and-off interval and the width with the oscillating section; a turn-on-and-off switching section for selecting a function of the turn-on-and-off section and a function of the oscillating section; a booster connected with the plurality of push-pull transistors, and generating high output voltage and resonant frequency to the load.
Patent KR-20000024903-A (KR)
Title: Fructigenine which is useful as antiphlogistic
Inventor: YOU WON IL
IPC: A61K31/475
Filed: 1998-10-02
Abstract: PURPOSE: A usage of Fructigenine A as an antiphlogistic is provided. which has inhibition effect on growth of the end of stems before. CONSTITUTION: An anti-inflammatory effect of Fructigenine A is measured by: applying each of 0.6, 0.3, 0.15, 0.075mg/ear of Fructigenine A and 0.7, 0.3, 0.15mg/ear of indomethacin to each right ears of mouse; measuring thickness of the ears before applying TPA; inducing inflammation at the ears using 10micro liter/ear of TPA(12-otetradecanoylphorbol-13-acetate); measuring thickness of the ears after 5hrs of applying TPA; comparing anti-inflammatory effect by gaining inflammation rate and inflammation inhibition rate of the of Fructigenine A and indomethacin. The effective concentration(ED50) of Fructigenine A is 0.29mg/ear and ED50 of indomethacin is 0.68mg/ear, so Fructigenine A shows more strong anti-inflammatory effect than indomethacin.
Patent KR-20000025301-A (KR)
Title: Scanning and inverse scanning apparatus for use in an image decoding system
Inventor: PARK KWANG SEOK
IPC: H04N19/42
Filed: 1998-10-09
Abstract: PURPOSE: An inverse scanning apparatus is provided to be able to rearrange data to be sent to an inverse quantizer without a long loop back loop. CONSTITUTION: In an inverse scanning apparatus for use in an image decoding system, a first -in-first-output part(21) performs a first-in-first-output operation to raster scanning order data quantized in a quantizer. An index counter(22) performs a counting a data stream according to a block start signal, and generates an index of the data stream according to the result. A mask start index generator(23) combines the index obtained at the index counter and a mask bit obtained at a variable length encoder to generate an index for a mask start. A comparison and fading part(24) compares indexes obtained from the index counter and the mask start index generator and fades or bypasses data obtained at the first-in-first-output part according to the comparison result so as to be output rearranged data.
Patent KR-20000030936-A (KR)
Title: Method for pattern etching for filling up material in producing process of semiconductor device
Inventor: KIM SEUNG JUN
IPC: H01L21/306
Filed: 1998-10-19
Abstract: PURPOSE: A method for etching a pattern to fill up a material is provided to improve reliability on a semiconductor device and processing yield rate by improving the insulating characteristic or the electric characteristic of the filled-up part by filling up the material completely without generating a void. CONSTITUTION: A silicon wafer(11) is thermally oxidized for growing a pad oxide film(12) and a nitride film(13) is deposited on the pad oxide film for spraying a photosensitive film. Therefore, a photosensitive film pattern is formed by expose-developing the photosensitive film through a mask for defining a trench area of separating a semiconductor device. In addition, an etching chamber is maintained to have high pressure for rounding the edge part of the photosensitive film pattern. Then, the pad oxide film is eliminated by etching by using the photosensitive film pattern as a mask, and the silicon wafer is etched for a certain depth to form a thin trench. The photosensitive film pattern remained on the upper part of the nitride film is eliminated and the trench is filled up by depositing an insulating film(15) on the front surface of the silicon wafer in a chemical vapor-phase deposit method.
Patent KR-20000027035-A (KR)
Title: Method for performing oam and p function of tdi that is distant station equipment in real time in flx 2500 system
Inventor: PARK HYEON TAE
IPC: H04L12/28
Filed: 1998-10-26
Abstract: PURPOSE: A method for performing OAM and P(Operating Administration and Maintenance and P) function of TDI(Telethony Drop Interface) in real time in FLX2500 system is to secure a logical communication channel between TDI of a distant station and EM(Element manager) of telecommunication station. CONSTITUTION: A method comprises the steps of: transmitting request information that EM requests to perform OAM and P of TDI to a self control part of a HDT(host digital terminal) under TCP/IP protocol through ethernet access(301); analyzing information inputted from the EM, extracting OAM and P, and transmitting the extracted OAM and P through OLU(Optical line unit)(303); inserting the OAM and P information into a routing flag site of the downstream data format and transmitting the rating flag data to OCC(Optical command & controller) of ONU(Optical network unit)(305); analyzing the routing flag data, extracting only information related to the OAM and P, and transmitting the related information to a control processor of the TDI(307); and analyzing the information received at the control processor, performing operation matched with the information, and reporting the operation result to the EM(311-317).
Patent KR-20000027905-A (KR)
Title: Overload control method for median agent device
Inventor: LEE JIN SU
IPC: H04Q3/64
Filed: 1998-10-29
Abstract: PURPOSE: An overload control method for a median agent device is provided to improve its performance by performing control function after information is collected using an outer device. CONSTITUTION: In an overload control method for a median agent device, information transmitted from a network managing center is first stored in a database(s23). The information stored in the database is transmitted to a managed object to set an overload control standard(s28). When setting the overload control standard, if overload occurs in a processor, a route supporting a traffic is sampled. Then, statistics of the traffic is collected using the information on the route sampled(s31). Finally, an overload control function with respect to the route is driven when it is determined that the overload occurs by the traffic according to the collected statistics of the traffic(s38).
Patent KR-20000032232-A (KR)
Title: Method for manufacturing 2-(3-trifluoromethyl) anilinonicotinic acid 2-(n-molpholine) ethyl
Inventor: LEE JONG HO
IPC: C07D413/12
Filed: 1998-11-13
Abstract: PURPOSE: A new method for manufacturing 2-(3-trifluoromethyl) anilinonicotinic acid 2-(N-molpholine)ethyl is provided, which is characterized by a high yield, fast reaction and purity of the compound. CONSTITUTION: The organic solvent is one of acetone, acetonitrile and dimethylformamide, which are easily soluble to water. The inorganic salt is one of sodium hydroxide, potassium hydroxide, sodium carbonate, which are alkali metal hydroxide or alkali metal carbonate. 2-(3-trifluoromethyl)anilinonicotinic acid(compound 2) and N-(2-chloroethyl)molpholine(compound 3) are polymerized under inorganic salt and mixture solvent which contains organic solvent and water by the volumetric ratio of 6: 4-9: 1, water is added to solution to form sediment and 2-(3-trifluoromethyl) anilinonicotinic acid 2-(N-molpholine) ethyl is manufactured by recovery of sediment through filtering process.
Patent KR-19990014492-A (KR)
Title: 소방호우스용 분사구
Filed: 1998-11-14
Abstract: 본 발명은 분사수가 다양하게 분사되게한 소방호우스용 분사구(관창)에 관한 것이다. 
     종래의 소방호우스용 분사구(관창)는 펌프엔진에서 가해지는 압력으로 분사되는 호우스와 연결된 분사구 몸체에 설치된 변제를 수동으로 조작하여 물의 분사량을 조절하도록 하고 있으나 이의 분사량조절은 고압상태에서 조절하기 때문에 용수의 낭비현상이 있을뿐만 아니라 화재현장의 소화목적에 알맞게 적용시킬수 없는 결점이 있고 특히 소화작업 과정 인명구조시와 같이 손에 잡고있는 분사구를 바닥에 놓고 타작업을 할시는 고압분사압에 의해 분사구가 자유이동하면서 불필요한 곳에 분사를 하는 경우와 주변에 있는 물체를 손상시키는 폐단이 있었던 것이다. 
     본 발명은 이상의 문제점을 해결하고자 발명한 것으로 이의 발명요지는 통상의 분사구(관창) 몸체의 변좌에 접탈되는 변체(3)의 주면에 좌우로 한쌍의 통공(4)(4')을 뚫고 이 사이에 와류홈(5)을 형성하여 통공(4)(4')이 서로 연결되어 와류수로를 형성함과 동시 변체(3)의 상부에 안치 체결되어 공회전되는 개폐판(7)에도 좌우로 한쌍의 통공(8)(8')을 뚫어서 개폐판(7)을 회동시켜 변체(3)의 통공(4)(4')과 일치될시는 비교적 적은압의 직사분사를 할수 있게 하고 개폐판(7)의 좌우 통공(8)(8')이 변체(3)의 좌우 와류홈(5)에 위치될시는 분사수가 심한 와류를 일으키면서 저압분산 분사를 하므로서 가까운 곳에서 비교적 넓은 면적으로 분사되게 하되 이때의 분사수는 전기한 와류홈(5)을 지나는 과정 수압에 의해 서로 마찰되어 미세입자가된 상태에서 분사되기 때문에 잔화소화에 있어 소화효율을 높혀준다.    특히 잔화소화 과정 이의 연소물질이 유류나 합성수지와 같은 난소화성 물질일 경우는 미세물입자와 친화성이 있어 이의 소화효율을 극대화시켜 주며 인명구조 등의 급한 사정이 있을시는 분사수의 수사량과 압을 최소로 조정한후 분사구를 바닥에 놓게 되면 분사구의 무반동으로 자유이동이 방지되어 용수의 허실방지와 타물체와의 충돌현상을 방지하게 되므로 소화작업 개선과 소화용수 절감에 크게 기여할수 있을 뿐만 아니라 피물체에 닿을 충격력이 약하므로 인하여 작업시 발생될수 있는 수손피해를 최소로 할수 있는 것이다.
Patent KR-20000037532-A (KR)
Title: Cathode active material for lithium secondary battery and method for manufacturing the same
Inventor: WOO IL GI
IPC: H01M10/0525
Filed: 1998-12-01
Abstract: PURPOSE: A cathode active material for a lithium secondary battery is provided to enhance a charging and discharging characteristics and cycle life by manufacturing the cathode active material by mixing a natural black lead with a synthetic black lead. CONSTITUTION: A cathode active material for a lithium secondary battery is manufactured by mixing a natural black lead(2) with a synthetic black lead. By mixing the natural black lead(2) with the synthetic black lead, the difference of the electrical conductivity between a-axis and c-axis is reduced by providing a conductive passage(D). The synthetic black lead is a milled carbon fiber made of a mesophase pitch.
Patent KR-19990030359-A (KR)
Title: 와이셔츠의 소매와 칼라를 탈 부착하는 장치와 제조 방법
Filed: 1998-12-03
Abstract: 1. 청구범위에 기재된 발명이 속한 기술분야 
     ① 본 드레스셔츠 커프스와 칼라가 몸체에서 떨어지게 되어 있어서, 커프스에 단추 구멍이 5개가 안쪽으로 있고 독립소매 안쪽에 단추가 5개 달려 있어서 소매를 커프스에 끼우고 단추를 채우면 된다. 
     ② 칼라는 칼라의 밀 칼라에 단추 구멍이 5개가 있고 몸체 밑 칼라 안쪽에 단추가 5개 달려 있어서 칼라를 몸체 칼라 위에 짇치고 단추를 채우면 된다. 
     2. 발명이 해결하려고 하는 기술적 과제 
     ① 드레스셔츠 커프스와 칼라가 해지면 버리기도 아깝고, 때가타면 간편하고 편리하게 탈착하기 위한 것으로서 커프스에 단추 구멍을 내고 소매에 단추를 달고, 칼라의 밑 칼라에 단추 구멍을 내고 몸체 밑 칼라에 단추를 달아 놓은 것이다. 
     여기에서 커프스 부분은 단추 외에 지퍼로 교체 할 수도 있다.    또한 색상과 사이즈도 다양하고 디자인도 여러 종류로 되어 있다. 
     ② 칼라 부분도 단추 외에 지퍼로 교체하게 되어 있고 색상과 사이즈가 다양하고 디자인은 웡 칼라, 챠이나 칼라, 기존 칼라 등으로 분류된다. 
     3. 발명의 해결 방법의 요지 
     ① 드레스셔츠를 입을 때 하루 중 반나절만 입어도 소매와 목이 때가 타는 것에 착안 커프스와 칼라를 때가 타거나 얼룩이 묻으면 언제라도 즉석에서 교체 할 수 있게 만들었다. 
     ② 출근 시에는 젊잖게 일반 정장 칼라 디자인으로 착용하고 퇴근 후에는 파티나 모임에 맞는 좀 튀는 색상과 디자인으로 교체 할 수 있도록 실용성과 편리함도 추구했다. 
     4. 발명의 중요한 용도 
     ① 드레스셔츠의 몸체에서 커프스와 칼라가 탈 부착이 자유로와 언제 어디서나 자유롭고 멋있게 패션 연출도 하고 해지면 갈아 끼워 경제적이고, 때가 타면 교체하고 모든 것이 탈착 할 수 있게 자유로운 것이 중요한 용도이다. 
     남성복 드레스셔츠에 있어서 V존은 옷차림의 전체 분위기를 좌우하는 중요한 요소이다.
Patent KR-20000038778-A (KR)
Title: Plug type transformer assembly
Inventor: KANG SHIN GUK
IPC: H01R29/00
Filed: 1998-12-09
Abstract: PURPOSE: A plug type transformer assembly is provided to reduce he manufacturing cost of the assembly by integrating a transformer with plugs. CONSTITUTION: Plugs(40,41,42,43,44) are connected to a power source, and outputs a voltage of 110V/220V. A transformer(20) converts the voltage outputted through the plugs(40,41,42,43,44) into a needed voltage. Connection terminals(10) and fixing terminals(30) connects and intermits the transformer(20) to and from the plugs(40,41,42,43,44). A transforming circuit(21) of the transformer(20) is disposed in casings(23,24). The fixing terminals are disposed in the casing(23). The connection terminals(10) are fixed to a fixing frame(11), and are connected to the input portion of the transforming circuit(21).
Patent KR-20000039497-A (KR)
Title: Polymer contact lens and its modifying method
Inventor: KO SEOK KEUN
IPC: C08J7/00
Filed: 1998-12-14
Abstract: PURPOSE: A polymer contact lens having an improved hydrophilic property is provided which a part of carbon of the activated surface is reacted with a reactive gas after activating the surface by irradiating less than 2,000 eV ion beam. CONSTITUTION: A surface modifying apparatus comprises a gas inlet part(20) introducing a reactive gas into a vacuum chamber(10), an ion source(30) producing ion beam, a substrate holder(40) and a vacuum pump(50). The polymer contact lens is built in the substrate holder(40) and the reactive gas is introduced into the vacuum chamber(10) through the gas inlet part(20). Ion beam having less than 2,000 eV is irradiated to activate the surface of the polymer contact lens from the ion source(30). The surface of the lens is reacted with the reactive gas to produce a hydrophilic group on the surface.
Patent KR-20000040543-A (KR)
Title: Bias circuit of semiconductor integral circuit
Inventor: HEO NAK WON
IPC: H01L27/04
Filed: 1998-12-18
Abstract: PURPOSE: A bias circuit of a semiconductor integral circuit is provided to stably supply a constant bias current regardless the change of the operating voltage, the temperature and the processing steps. CONSTITUTION: A bias circuit has a first bias circuit(10) for increasing the current when the temperature is ascend. A second bias circuit(20) is provided to reduce the current when the temperature is ascend. A current combining circuit(30) is provided to reflect the current of the first bias circuit(10) in response to the signal of an output terminal of the first bias circuit(10). The combining circuit(30) reflects the current of the second bias circuit(20) in response to the signal of an output terminal of the second bias circuit(20). The combining circuit(30) generates a first bias current by combining the reflected current. A first pull down device(60) is provided to reduce the voltage level of the first bias circuit(10). A second pull down device(70) is provided to reduce the voltage level of the second bias circuit(20).
Patent KR-20000041711-A (KR)
Title: Refrigerant mixtures containing difluoromethane and 1,1,1-trifluoroethane
Inventor: LEE BYUNG KWUN
IPC: C09K5/04
Filed: 1998-12-23
Abstract: PURPOSE: A refrigerant mixture added one component of RC-270, HFC-227ea, HFC-245cb, HFC-236ea, R-600, HFE-134, and HFE-245 to a mixture of HFC-32 and HFC-143a additionally is provided which exhibits performance similar to HCFC-22. CONSTITUTION: A refrigerant mixture free from ozonosphere destruction danger, which can be used as a substitute for chlorodifluoromethane(CHClF2) comprises difluoromethane(CH3F2, HFC-32) as a first component, 1,1,1-trifluoroethane(CH3CF3, HFC-143a) as a second component and one component selected from the group of 1,1,1,2,3,3,3-heptafluoropropane(CF3CHFCF3, HFC-227ea), 1,1,1,2,3,3-hexafluoropropane(CHF2CHFCF3, HFC-235ea), butane(C4H10, R-600), bis(difluoromethyl)ether(CHF2OCHF2, HFE-134), and pentafluoroethylmethylether(CF3CF2OCH3, HFC-245) as a third component. The composition of HFC-32, HFC-143a and RC-270 is 20 to 40% by weight, 30 to 70% by weight and 0 to 30% by weight respectively.
Patent KR-20000042201-A (KR)
Title: Pulse generating circuit
Inventor: JEONG WON CHEOL
IPC: H03K3/00
Filed: 1998-12-24
Abstract: PURPOSE: A pulse generating circuit is provided to generate a pulse coupled to a high voltage direct current without using a high-voltage and high-current switching device. CONSTITUTION: A pulse generating circuit comprises a direct current(DC) power source(60), a rectangular wave generating part(70), an amplification part(80) and a pulse couple high-voltage DC generating part(90). The rectangular wave generating part(70) consists of resistors(R1,R2,R3), a capacitor(C1) and a 555 multivibrator(71), and receives a low-voltage DC from the DC power source(60) to generate a rectangular wave. The amplification part(80) consists of three transistors(Q1,Q2,Q3) and four resistors(R4-R7), and boosts the generated rectangular wave into a high voltage. The pulse couple high-voltage DC generating part(90) consists of a transformer, and generates a pulse comprising a high-voltage DC by use of the boosted rectangular wave.
Patent KR-20000043644-A (KR)
Title: Method for ejecting cassette from vcr in vehicle
Inventor: KIM EUL JE
IPC: G11B15/02
Filed: 1998-12-29
Abstract: PURPOSE: A method for ejecting a cassette from a VCR(video cassette recorder) in a vehicle is provided to prevent the foreign materials and beverages from flowing into a pull door by preventing the needless opening of the pull door. CONSTITUTION: A door on/off switch(41) is continuously turned on by contacting with a loading door(21) before an ejecting mode is set. Herein, the door on/off switch is mounted on the lower surface of a pull door(40). In setting the ejecting mode, a cassette(50) is ejected toward the loading door. The door is opened to turn off the door on/off switch for reducing the ejecting speed of the cassette. In turning on the door on/off switch, the ejection of the cassette is stopped to prevent the pull door from being opened. When the door on/off switch is turned off, the cassette is additionally ejected for the cassette to be projected to outside of a panel(20).
Patent KR-20000043709-A (KR)
Title: Audio/video system of vehicle with capture function
Inventor: YUN HYEON
IPC: G11B20/10
Filed: 1998-12-29
Abstract: PURPOSE: An audio/video system of vehicle with a capture function is provided to use as a background screen after storing in a memory by collecting a user's needed specific screen among screens displayed on an LCD(liquid crystal display) with a video CD changer. CONSTITUTION: A pausing signal is inputted as a high signal and a low signal into a CONT1 terminal and a CONT2 terminal of a switching IC(integrated circuit)(40). A composite video signal output from a video-CD changer(20) and fed to an LCD(30) through an IN2 terminal and an OUT2 terminal is output through an IN1 terminal and an OUT1 terminal and inputted to a chroma IC(50). The chroma IC(50) convert the composite video signal to a digital RGB signal(DR,DG,DB). A graphic IC(60) display on the LCD(30) by converting the digital RGB signal to an analog RGB signal according to an input of a screen storing signal. An offset according to X and Y axial coordinates of displayed screen is set. An address is decided. A data of specific screen is stored in a memory(11). The data is used as a background screen.