baber/WOPTO huggingface dataset:
Patent KR-20040049958-A (KR)
Title: First class
Inventor: PARK GWANG YEOL
IPC: G06K9/00
Filed: 2002-12-06
Abstract: PURPOSE: A first class system is provided to realize the integrated management for entire academy such as attendance management, prevent a proxy attendance, and inform a parent of an attendance report by using fingerprint recognition. CONSTITUTION: As a student touches a finger to a fingerprint recognition part on a touch screen, the entry and the exit of the academy, and various kinds of corresponding messages are promptly transmitted to the parent in real-time. When the fingerprint is touched, the message is transmitted through a mobile communication network of a customer via an Internet SMS(Short Message Service) server.
Patent KR-20040049468-A (KR)
Title: Rear panel for plasma display panel
Inventor: CHO WON DEOK
IPC: H01J17/49
Filed: 2002-12-06
Abstract: PURPOSE: A rear plate is provided to allow an electrode to be accurately positioned at the center between barrier ribs, while achieving improved characteristics of plasma display panel. CONSTITUTION: A rear plate(100) comprises a glass substrate(110); an electrode(120) formed on the glass substrate; a dielectric layer(130) formed on the electrode; barrier ribs(140) formed on the dielectric layer through an etching process; and a phosphor layer(150) including red, green, and blue phosphor layers formed along the side and bottom surfaces of barrier ribs. The electrode is produced from a mixture of conductive metal powder selected from Au, Ag, Pt, Pd, Ni, and Cu and glass powder. The dielectric layer is produced from a material consisting of PbO 30 to 80 weight% : ZnO 0 to 20 weight% : SiO2 0 to 20 weight% : B2O3 5 to 40 weight%: Al2O3 0 to 12 weight%: Na2O+K2O+Li2O 0 to 5 weight%: BaO+CaO+MgO+SrO 0 to 5 weight%. The barrier rib is produced from a material consisting of ZnO 0 to 48 weight% : SiO2 0 to 21 weight%: B2O3 25 to 56 weight% : Al2O3 0 to 12 weight% : Na2O+K2O+Li2O 0 to 38 weight% : BaO+CaO+MgO+SrO 0 to 15 weight%. The red phosphor layer is produced from two or more materials selected from Y, Gd, B, and Eu, the green phosphor layer is produced from one or more materials selected from Zn, Si, Mn, Y, B, Tb, Ba, and Al, and the blue phosphor layer is produced from two or more materials selected from Ba, Mg, Al, Sr, Mn, and Eu.
Patent KR-20040050148-A (KR)
Title: Reinforcing structure of side seal part for automobile
Inventor: JUN JE HYEONG
IPC: B62D25/20
Filed: 2002-12-09
Abstract: PURPOSE: Reinforcing structure of a side sill part of a vehicle is provided to prevent penetration of a collided parts in a broadside collision of the vehicle. CONSTITUTION: Reinforcing structure of a side sill part of a vehicle includes a door panel(1); a side outer panel(2) formed to the lower end of the door panel; a side inner panel(3) the upper and lower ends of which are welded to the inside of the side outer panel, with a space; and a weather strip(4) covering the upper combining part of the side outer and inner panels. The reinforcing structure of the side sill part further includes a bracket(11) mounted to the inside of the side inner panel by a fastening member(11a); a cylindrical body(12) having the outer peripheral surface of a lower cylindrical surface(12a) welded to a circular surface of the bracket; a support pin(13) installed to the upper part of an elastic spring(12b) installed in the lower cylindrical surface and inserted through an opening of an upper cylindrical surface(12c) of the cylindrical body; a control member(14) one side of which comes in contact with the inside of the side outer panel and the other side penetrates the lower part of a central cylindrical surface(12d) of the cylindrical body; and a guide member(15) installed to the lower inside of the door panel, to guide the support pin while receiving the elastic force of the elastic spring by the operation of the control member and expanding when the support pin is collided.
Patent KR-20040056450-A (KR)
Title: Method for manufacturing a semiconductor device
Inventor: CHA HAN SEOP
IPC: H01L21/8238
Filed: 2002-12-23
Abstract: PURPOSE: A method for fabricating a semiconductor device is provided to improve stability and productivity in patterning a gate electrode of a CMOS(complementary metal oxide semiconductor) semiconductor device by omitting an ion implantation process performed on a gate electrode in an NMOS region prior to formation of the gate electrode and by additionally performing an ion implantation process only on the gate electrode in the NMOS region. CONSTITUTION: NMOS and PMOS gate electrodes(110,112) are formed on a semiconductor substrate(100) in which NMOS and PMOS regions are defined. A source/drain ion implantation process is performed to form a source/drain region in the substrate exposed to both sidewalls of the NMOS and PMOS gate electrodes. Photoresist is formed on the resultant structure to cover the NMOS gate electrodes. The photoresist is etched to expose the upper part of the NMOS and PMOS gate electrodes. A barrier layer is formed on the resultant structure to cover the NMOS and PMOS gate electrodes. An etch process is performed to expose the upper part of the NMOS gate electrode by using a mask whose NMOS region only is open. N¬+ ions are implanted into the exposed NMOS gate electrode. The barrier layer and the photoresist are completely eliminated.
Patent KR-20040056222-A (KR)
Title: the welding wire feeder and controlling method for the same for better welding performance
Inventor: JUNG HUI DON
IPC: B23K9/133
Filed: 2002-12-23
Abstract: PURPOSE: A welding wire feeder and a control method thereof are provided to improve welding efficiency by properly controlling an amount of wires released from a wire roll without applying overload to a motor. CONSTITUTION: A welding wire feeder includes a feeding section, a speed adjusting section, a loop detecting section, and a control section. The feeding section has a first driving shaft(65) of a first DC motor connected to a center of a wire roll(50). A wire(40) is wound around the wire roll(50). The speed adjusting section has a second driving shaft(20) of a second DC motor and an idle roll(30). The loop detecting section has proximate switches installed between the feeding section and the speed adjusting section. The control section controls an operation of the first and second DC motors.
Patent KR-20040056765-A (KR)
Inventor: YOO IN YONG
IPC: F21V8/00
Filed: 2002-12-24
Abstract: PURPOSE: A backlight unit assembly is provided to prevent light from emitting to the outside, from the left and right sides of an LED(Light Emitting Diode) array, thereby forming efficiently a uniform white light. CONSTITUTION: The LED array(41) is used as a light source and comprised of plural LED(42) devices for emitting RGB, as single light, respectively. A sub light guide panel(23) for composing the RGB single light and then making white light is installed at the front surface of the LED array(41). A backlight preventive holder(50) is installed at a side surface of the LED array(41). In the holder(50), a reflection plate(51) is adhered to the surface facing the LED devices(42). The light radiated from the LED devices(42) is reflected nearly by the reflection plate(51).
Patent KR-20040057282-A (KR)
Inventor: HAN GI HO
IPC: H01J29/76
Filed: 2002-12-26
Abstract: PURPOSE: A deflection yoke is provided to improve an inferiority of a dielectric strength by securing a dielectric range between a start line and a final line of a horizontal deflection coil and by changing a wiring structure of a rear plate side. CONSTITUTION: A deflection yoke comprises a coil separator including a screen part and a rear plate and a neck part(13) combined with an electron gun part of the cathode ray tube; a horizontal(15) and a vertical deflection coil for forming a horizontal and a vertical deflection magnetic field, and which are arranged at an inside and an outside of the coil separator, respectively; a printed circuit board for connecting electrically the horizontal deflection coil to the vertical deflection coil; and an insulation device(30) provided on the rear plate of the coil separator and which secures an insulation between a start line(15b) and a final line(15a) of the horizontal deflection coil connected to the circuit board.
Patent KR-20040058774-A (KR)
Inventor: JANG HEON YONG
IPC: H01L21/283
Filed: 2002-12-27
Abstract: PURPOSE: A method for fabricating a semiconductor device is provided to restrict a failure of a self-aligned contact process and improve an electrical characteristic by preventing a bridge between a storage node contact and a word line. CONSTITUTION: A word line pattern having a hard mask(35) is formed on a semiconductor substrate(31). A landing plug(39) is formed on the semiconductor substrate between the word line patterns. An etch barrier(40) is formed on the semiconductor substrate including the landing plug. A top part of the landing plug is opened by etching the etch barrier. A plurality of interlayer dielectrics(47) are formed on the etch barrier including the top part of the landing plug. A storage node contact part is formed by etching the interlayer dielectrics. A storage node contact(49) is buried into the storage node contact part.
Patent KR-20030011059-A (KR)
Title: Gas/air mixer of cremation furnace system
Inventor: BAEK SEONG U
IPC: F23G1/00
Filed: 2002-12-30
Abstract: PURPOSE: A gas/air mixer of a cremator system is provided to promote thermal efficiency by minimizing impurities accumulated in an air preheater. CONSTITUTION: A cremator system is composed of a combustion chamber, a cooling chamber installed at one side of the combustion chamber and cooling ashes, and a gas/air mixer(400) installed at one side of the combustion chamber. A filtering member is installed in the gas/air mixer, and filters dust from combustion gas exhausted from the combustion chamber.
Patent KR-20040061480-A (KR)
Title: apparatus and method for testing in communication system
Inventor: KIM JAE UK
IPC: H04B17/00
Filed: 2002-12-31
Abstract: PURPOSE: An apparatus and a method for testing a communication system are provided to realize signal exchange between a base station and a plurality of terminal emulators, and smoothly verify exchange of baseband signals. CONSTITUTION: A BTX(Baseband Transmitter)(11) modulates baseband information data to transmit the modulated baseband information. A searcher(14) measures energy of signals received through multiple paths. An FNC(Finger and Combiner)(15) is comprised of fingers substantially demodulating in a demodulator, and combiners combining symbols from the fingers. GLINK(Giga Link) RXs(13,16) are serially connected with transmission links(22,23) of a first terminal(20) for receiving high speed data. A GLINK TX(12) is serially connected with a receiving link(21) of the first terminal for transmitting high speed data. Transmitting links(22,27,23) transmit high speed data through a base station or other terminals. Receiving links(21,25,26) receive high speed data transmitted from a base station(10) through transmitting links of other terminals. A channel modeling module(24) controls the number of data bits between the base station(10) and terminals(20,30,40).
Patent KR-20020053802-A (KR)
Inventor: HOCKSWENDER THOMAS R
Filed: 2000-07-31
Abstract: Coating compositions are provided which include a polysiloxane comprising at least one reactive functional group and at least one material comprising at least one reactive functional group. Also provided are multi-layer composite coatings formed from a basecoat deposited from a pigmented coating composition and a topcoat applied over the basecoat, the topcoat deposited from the aforementioned coating composition. A method for improving the scratch resistance of a coated substrate, as well as coated substrates also are provided. The compositions of the invention provide highly scratch resistant coatings, particularly highly scratch resistant color-plus-clearcoatings.
Patent KR-20020029385-A (KR)
Title: 연료 분사 밸브
IPC: F02M63/00
Filed: 2000-08-17
Abstract: 본 발명은 연료 분사 밸브(1), 특히 내연기관의 연료 분사 장치용 분사 밸브에 관한 것이다. 상기 연료 분사 밸브는 압전 또는 자왜 액추에이터(10), 상기 액추에이터(10)에 의해 작동 가능하고 밸브 시이트 면(4)과 상호 작용하여 밀봉 시이트를 형성하는 밸브 폐쇄 부재(6), 및 온도 보상 장치(32)를 포함한다. 상기 온도 보상 장치(32)는 액추에이터(10)의 작동 방향을 따라 탄성적으로 변형 가능한 하우징(33), 및 상기 하우징(33)의 내부(34)를 연료 분사 밸브(1)의 연료 유입구(15)에 연결시키는 적어도 하나의 드로틀(35)을 포함한다. 상기 드로틀 횡단면의 치수는 연료 분사 밸브(1) 부품의 온도로 인한 길이 변동 시에 온도 보상 장치(32)의 하우징(33)내로 연료의 유입 및 배출이 가능하도록 설정된다.
Patent KR-20020034180-A (KR)
IPC: C09J7/20
Filed: 2000-08-08
Abstract: 신장 제거식 접착 테이프 제품은 긴 길이의 신장 제거식 접착 테이프 및 일정 길이의 테이프로부터 절단된 테이프의 수동으로 결합 가능한 당김 탭을 형성하기 위해서 사용될 수 있는 접착부 상에 정렬된 분할된 라이너를 포함한다.  라이너의 각각의 세그먼트는 테이프로부터 하나씩 제거될 수 있다.  분할된 라이너는 접착 테이프가 임의의 길이로 만들어지게 하고 롤을 형성하도록 그 자체에 감겨질 수 있게 하고, 사용자가 스트립의 최종 사용 용도에 따라 선택된 길이를 가지는 스트립으로 절단할 수 있게 하며, 또한 사용자가 기판으로부터 테이프를 신장시켜 제거하도록 사용자에 의해 파단되어 당겨질 수 있는 스트립 상의 임의의 위치에서 수동으로 결합 가능한 비접착성 당김 탭을 형성할 수 있게 한다.
Patent KR-20020053056-A (KR)
Title: Device and method for forming a recess in a workpiece
IPC: B21D21/00
Filed: 2000-08-23
Abstract: The invention relates to a device for creating a recess in a workpiece which has a tool (30) which can be moved forward by a forward feed device (31) in a tool (30) which can be moved forward and which has at least one machining element (35; 35a-35d) for the production of a recess (2a-2d) in said workpiece (3a-3e). According to the invention, the tool (30) has at least one machining element (35; 35a-35d) with a machining area (40) which is wedge-shaped and which projects from a front end (38) to an opposite end (39) of the machining area (40) and widens to a breadth (b) thereby substantially corresponding to the axial elongation (I) of the recess to be produced (2a-2d), rising from the base (36) of the tool (30) to a height (h) and having at least the depth (t) of the recess (2a-2d) to be produced. Said device (1) has an apparatus (10, 11; 20, 21) which can move the tool (30) in a processing direction (B) at various machining forces.
Patent KR-20020070427-A (KR)
IPC: G01N21/77
Filed: 2000-08-24
Abstract: 본 발명에 따른 제품 인증 및 품질의 현장 검증을 위한 방법 및 장치는 발광성 화합물이 그 위에 올려지는 기판을 갖는 마이크로 플레이트를 포함한다.  기판은 발광성 화합물의 부동화를 제공하며, 발생할 제품 샘플과의 반응을 위한 프리 솔루션에 유사한 3차원 환경을 제공한다.  마이크로 플레이트는 요구된 광 반사 성질과 그 안에 발광성 화합물을 유지하기 위한 표면을 갖는 임의의 물질을 포함할 것이다.  예를들어, 숙달된 기술자, 자동 장비를 이용한 자동화된 계량 또는 압전 분산 기술을 이용한 프린팅 등의 임의의 요구된 계량법에 의해 계량된 양의 발광성 화합물이 마이크로 플레이트 위에 배치된다.  이러한 특징으로, 발광성 화합물이 마이크로 플레이트 위에 배치된다.  발광성 화합물이 기판에 가해지고 나서, 마이크로 플레이트는 제품 검사가 수행되는 테스트 지점으로 보내질 것이다.  샘플 제품은 마이크로 플레이트 위에 위치되며, 마이크로 플레이트 위의 발광성 화합물이 샘플 제품내의 핵심 함유물과 반응한다.  발광성 화합물과 핵심 함유물로부터의 광 방출은 핑거프린트에 비교된다.
Patent KR-20030022767-A (KR)
Title: Process for production of methylcobalamin
IPC: C07H23/00
Filed: 2000-12-07
Abstract: The present invention provides an industrially excellent and novel process for producing methylcobalamin useful as medicines. Namely, it provides a process for producing methylcobalamin, which comprises the step of methylating cyanocobalamin or hydroxocobalamin in the presence of a reducing agent and a water-soluble methylating agent.
Patent KR-20020059811-A (KR)
Title: 염수를 재순환하여 폴리카보네이트를 제조하는 방법 및 장치
IPC: C02F1/78
Filed: 2000-11-02
Abstract: 계면 폴리카보네이트 장치에서 생성된 염수는 염소 제조에 사용되는 전해조로 재순환되어 사용되도록 처리될 수 있다.  즉, 폐기 염수 스트림을 오존과 혼합하여, 페놀, 비스페놀 A 및 클로로메틸트리메틸 암모늄 클로라이드와 같은 유기 오염물의 양이 감소된 오존화된 염수를 제조한다.  그리고 나서, 이 오존화된 염수를 산성화하여 탄산염을 제거하고 탈탄산 염수를 제조한다.  이어서, 이 탈탄산 염수를 농축하여 염화나트륨의 농도가 10 중량% 이상으로 처리된 염수를 제조한다.  여과 단계를 오존화 단계 전에 포함시켜 미립자 불순물들을 제거할 수 있다.  본 발명에 따라 염소, 포스젠 및 폴리카보네이트를 제조하는 장치를 결합한 계면 폴리카보네이트 장치를 사용하면, 염수 폐기 스트림이 재순환되어 폴리카보네이트를 제조하기 위한 환경적으로 우수한 비용 절감의 효과적인 방법이 제공된다.
Patent KR-20020082476-A (KR)
Title: Surveillance method, system and module
IPC: G06T7/00
Filed: 2000-12-22
Abstract: A method of monitoring monitored locations by means of a monitoring system. The monitoring system comprises a plurality of monitoring modules (1), each of which has a light-sensitive sensor for monitoring the monitored locations. The monitoring system further comprises a remote monitoring station (3) with an operator. The method comprises the steps of recording by each of the monitoring modules (1) an image of the monitored location associated with the monitoring module (1), extracting in each of the monitoring modules an area in the recorded image that differs from a reference image, and extracting in each of the monitoring modules an object from the area. The method further comprises classifying in each of the monitoring modules (1) the object based on characteristics, such as a characteristic of the type: size, shape and/or movement history, associated with the object, if the object is a human alarm object, and if the object is classified as a human alarm object, transmitting data representing the area in a stylized way to the monitoring station (3), and recreating said transmitted data in the monitoring station (3) and displaying the same to the operator for verification of the human alarm object.
Patent KR-20030013391-A (KR)
IPC: H02K41/035
Filed: 2002-02-22
Abstract: 비례 솔레노이드형 특징을 제공하는 보이스 코일 액츄에이터가 기재되어 있으며, 제 1 및 제 2 자석들이 제 1 소프트 자극편의 다른 단들에 위치되고, 반대 방향으로 자화되며, 상기 제 1 소프트 자극편은 제 1 자석의 길이 및 제 2 자석의 길이보다 긴 길이를 갖는다. 제 1 소프트 자극편의 길이보다 짧은 길이를 갖는 코일이 제 1 소프트 자극편 및 제 1 및 제 2 자석들에 공통인 축을 따라 이동하도록 위치되며, 구조는 제 1 및 제 2 자석들의 자유단들 간의 자기 경로를 제공한다.
Patent KR-20020092451-A (KR)
IPC: A61J1/00
Filed: 2001-03-16
Abstract: The invention relates to an elastic, substantially non-stretched film produced from olefinic materials that is completely free of PVC and that is yet adapted to the requirements of a film, such as a film for medical purposes, for example for heat sterilization. The inventive film has elastic properties up to a certain point that depend on the film's thickness, that means no permanent deformation can be observed. When the tensile stress is further increased, the film is deformed, that is it shows a plastic behavior until it finally tears or breaks. The transition is fluid since, unlike conventional films, the inventive film has no negative increase in the yield point. The increase in the yield point is >=0. The invention further relates to the use of the inventive films, for example in the field of medical engineering, and to bags for medical purposes that comprise at least one film according to the invention.
Patent KR-20030020294-A (KR)
IPC: A61K47/18
Filed: 2001-06-08
Abstract: 백신으로 이용하기에 적합한 겔-형성 유동분말(gel-forming free-flowing powder)을 항원이 흡착된 알루미늄염 또는 칼슘염, 당류, 아미노산 또는 그의 염, 및 콜로이드성 물질을 포함하는 수성 현탁액을 분무건조 또는 분무 동결건조하여 제조하였다.  또한, 백신에 적합한 분말을 항원이 흡착된 어쥬번트를 포함하는 수성의 현탁액을 분무 동결건조하여 제조하였다.  아울러, 본 명세서에는 이러한 분말 조성물의 제조방법 및 예방접종에의 조성물의 이용방법이 기술되어 있다.
Patent KR-20030038554-A (KR)
IPC: G02B1/10
Filed: 2002-04-17
Abstract: 생산성에 뛰어난 투명도가 높은 무색의 반사방지필름 및 반사방지층부착 플라스틱기판이다.    또, 방습성이나 가스배리어성을 가지며, 광학특성에도 뛰어난 반사방지필름 및 반사방지층부착 플라스틱기판이다.    기판 위에 하드코트층이 형성되고, 하드코트층 위에 투명고굴절률 산화물층과 투명저굴절률 산화물층이 교대로 적층되어서 이루어지는 반사방지필름이다.    투명고굴절률 산화물층이 반응성 스패터링법에 의해 형성된 Nb 2 0 5 층으로 구성되어 있다.    또, 유기재료로 이루어지는 기체를 이용한 반사방지필름에 있어서, 기체의 한편의 면에 접하여 유기재료와 근사한 굴절률을 가지는 무기방습층이 형성되어 있다.
Patent KR-20030011351-A (KR)
IPC: C08L69/00
Filed: 2001-06-15
Abstract: 고온에서 용융해도 착색이 적고, 전체 방향족 폴리에스테르 카보네이트 또는 전체 방향족 폴리에스테르와 방향족 폴리카보네이트의 용융 성형물이 제공된다.     이 용융 생성물은 각종 자동차 부품이나 전기 전자 부품의 제조에 사용된다.
Patent KR-20030007962-A (KR)
Title: Method and apparatus for forwarding messages among multiple radio networks
IPC: H04W88/18
Filed: 2001-06-13
Abstract: Techniques to forward unsolicited messages from an (IS-2000) CDMA radio network via an HDR radio network to an access terminal. A session is first established between the access terminal and the HDR radio network. During session establishment or thereafter, the access terminal indicates to the HDR radio network an interest in receiving unsolicited messages from the CDMA radio network. The access terminal typically also registers with the CDMA radio network. Thereafter, unsolicited messages can be sent from a mobile station controller (MSC) to the HDR and CDMA radio networks, or sent from the MSC to the CDMA radio network, which then forwards the messages to the HDR radio network. The HDR radio network encapsulates the unsolicited messages and sends the encapsulated messages to the access terminal. The forwarding of unsolicited messages allows the CDMA radio network to communicate with an access terminal.
Patent KR-20030018005-A (KR)
IPC: H02P29/00
Filed: 2002-04-22
Abstract: 좌우 후륜(16B)을 독립적으로 제어하고 있으며, 이들 속도차에 의해 차량(10)의 주행 방향을 변경(선회)시키도록 하고 있다.  다시 말해, 통상은 조타륜을 설치하여 이 조타륜을 승무원이 스티어링 등의 조작으로 상시 행하고 있었지만, 미리 조정간(92)의 좌우의 기울기에 의해 선회 방향을 지시할 뿐으로, 자동적으로 최적의 곡률로 선회를 행하도록 했기 때문에, 승무원의 조타 조작의 번잡함을 해소할 수 있다.  또, 상기 좌우의 독립 제어를 PLL 제어에 의해 실행하기 때문에, 정밀도 좋게, 또한 응답성 좋게 선회할 수 있다.
Patent KR-20040063567-A (KR)
Inventor: LEE JEONG HO
IPC: G09G3/296
Filed: 2003-01-08
Abstract: PURPOSE: A method for preventing an afterimage of an image display device using a PDP module is provided to prevent afterimages on a screen by dividing the screen into blocks and changing each contrast ratio of the divided blocks. CONSTITUTION: A method for preventing an afterimage of an image display device using a PDP module includes a division process, a detection process, and a reduction process. The division process is performed to divide a full screen into a plurality of blocks(110). The detection process is performed to detect a displaying state of a still picture and a displaying state of a motion picture from the divided blocks(120). The reduction process is performed to reduce a contrast ratio of the blocks corresponding to the still pictures(130). In addition, the reduction process is performed to reduce the contrast ratio of the full screen when the number of the blocks corresponding to the still pictures is more than a predetermined number(140,150).
Patent KR-20040063625-A (KR)
Inventor: JIN BYEONG UK
IPC: H04N5/225
Filed: 2003-01-08
Abstract: PURPOSE: A method for controlling a digital camera which performs adaptive recompression is provided to compress image files at a compression rate according to the selection of a user and store the compressed image files in a memory card. CONSTITUTION: If the capacity of a memory card is insufficient, a micro-controller confirms whether image files, compressed at the first compression rate which is a low compression rate or the second compression rate which is an intermediate compression rate, exist. If the image files compressed at the first compression rate exist, the micro-controller compresses one of the image files compressed at the first compression rate at the second compression rate according to the permission of a user and stores the compressed image file(811-814). If the image file compressed at the first compression rate does not exist and the image files compressed at the second compression rate exist, the micro-controller compresses one of the image files compressed at the second compression rate at the third compression rate which is a high compression rate according to the permission of a user and stores the compressed image file(821-824,831).