baber/WOPTO huggingface dataset:
Patent KR-20010104897-A (KR)
Inventor: JUN DONG UK
Filed: 2000-05-16
Abstract: 본 발명은 선박-선박, 선박-육상관제소 간에 무선으로 데이터를 송수신할 수 있는 장치를 구비시켜, 선박의 명세, 위치, 침로, 속도, 항해 상태 등의 정보 교환이 원활히 이루어지도록 함으로써 해상 교통 안전을 도모하도록 한 선박 자동식별 시스템용 데이터 송수신 제어 장치 및 그 방법에 관한 것으로서, 이러한 본 발명은, 선박 시스템의 상태 정보를 로딩한 후 이를 분석하여 시스템의 상태를 점검하고, 시스템의 상태를 점검한 결과 이상이 발생한 경우에는 경보를 발생해주고, 시스템이 정상적인 경우 위치 및 속도 등의 자료를 수집하며, 수집된 자료를 분석하고, 그 분석 결과를 토대로 송신 자료를 구성한 후 송신 자료를 부호화하여 무선 신호로 전송한다. 또한, 선박 시스템의 상태 정보를 로딩한 후 이를 분석하여 시스템의 상태를 점검하고, 시스템의 상태를 점검한 결과 이상이 발생한 경우에는 경보를 발생해주고, 시스템이 정상적인 경우 다른 선박 또는 육상 관제소의 정보를 무선으로 수신하며, 수신한 정보를 복호하고 그 복호된 정보를 분석하고 그 분석한 자료를 디스플레이해주고 아울러 컴퓨터로 전송해준다.
Patent KR-20010104927-A (KR)
Inventor: LEE JONG WAN
Filed: 2000-05-16
Abstract: 밸브일체형 유압펌프에 관한 본 발명은, 유압오일이 유입하는 오일유입통로와, 오일이 배출되는 제 1 및 제 2오일배출통로와, 상기 제 1 및 제 2오일배출통로와 연통하는 오일유동로가 형성되며, 유로전환수단이 구비된 메인블록과; 상기 메인블록의 일측면에 설치되는 제 1구동기어와 제 1종동기어 및 제 1블록과; 상기 제 1구동 및 제 1종동기어를 회전시키는 제 1모터와; 상기 메인블록의 타측면에 구비되는 제 2구동기어와 제 2종동기어 및 제 2블록과; 상기 제 2구동기어 및 제 2종동기어를 회전시키는 제 2모터를 구비하며, 상기 제 1구동 및 제 1종동 기어의 치합부위의 좌우에는 오일유동구 포트가 각각 형성되고, 상기 제 2구동 및 제 2종동기어의 치합부위의 상하에도 오일유동구 포트가 각각 형성된 것을 특징으로 한다. 
     상기와 같이 이루어지는 본 발명의 유압펌프는, 하나의 블록 조립체내에 구비된 두 쌍의 기어로 하여금 유압유를 유동시키는 구조를 가져 장치의 크기 및 무게가 작고 동력의 손실이 작다는 효과가 있다.
Patent KR-20000050153-A (KR)
Inventor: KIM SANG WOO
IPC: A42B1/08
Filed: 2000-05-18
Abstract: PURPOSE: An impact absorbing liner for use in a safety cap is provided to enable a worker wearing the safety cap to work under more comfortable conditions by adding charcoal which is known to provide antibacterial, deodorizing and anion increasing effect to the liner. CONSTITUTION: An impact absorbing liner bonded to the inside of a safety cap according to the present invention is characterized in that charcoal is added to the liner made of styrofoam.
Patent KR-20010007117-A (KR)
Inventor: SATO TOMOHIKO
IPC: H01L27/04
Filed: 2000-05-25
Abstract: PURPOSE: To provide a semiconductor device which is never affected by the noises by preparing a constitution where a first transistor Tr has a 1st electrode which inputs a first constant current and is connected to the control electrode of the first Tr and a second has a first electrode which inputs the second constant current and also has a control electrode which is connected to the first electrode of the first Tr respectively. CONSTITUTION: A semiconductor device 51 includes a constant current supply parts M3 and M4 and the first and 2nd Tr M1 and M2. A first electrode of the Tr M1 inputs a first constant current I1 and is connected to the control electrode of the Tr M1, and a second electrode of the Tr M1 is connected to a second potential part GND via a potential variance transmission part of a first potential variation VBB. A first electrode D of the Tr M2 inputs a second constant current I2, the control electrode of the Tr M2 is connected to the first electrode of the Tr M1 and a second electrode of the Tr M2 is connected to the part GND via a resistance R1 respectively.
Patent KR-20010108846-A (KR)
Inventor: YU CHOON YEOL
Filed: 2000-05-31
Abstract: 컴퓨터 시스템에서 저장장치의 수단의 주소를 전환하는 방법으로써, 일정 부분의 끝 주소를 초기주소로 전환하는 전환수단을 이용하여 전환하는 기법을 주파수 전환에도 동일하게 적용하므로써 주파수를 효율적으로 사용하도록 하는 방법과 장치에 대한 발명임.
Patent KR-20010110546-A (KR)
Inventor: WOO SEONG BOK
Filed: 2000-06-07
Abstract: 본 발명은 티브이의 화이트 밸런스 자동조정장치 및 방법에 관한 것으로, 종래에는 씨피티 캐소드의 단자별 임피던스 편차에 따른 특성차이로 인하여 씨피티별 재현되는 화이트가 상이하므로 별도의 장치로 화이트 밸런스 조정을 하게 되고 이로 인해 비용이 증가하게 되고, 또한 씨피티의 편차로 인하여 전자총 캐소드 임피던스가 과도하게 차이가 발생하면 외부 장치를 사용하더라도 조정이 되지 않아 라인 트러블이 발생하는 문제점이 있었다. 따라서, 본 발명은 영상신호를 소정 처리하여 그에 따른 색신호(R/G/B)를 출력하는 색출력부와, 상기 색출력부의 색신호 (R/G/B)를 소정 레벨로 증폭하는 증폭부와, 상기 증폭부로부터 증폭된 색신호를 브라운관에 디스플레이하는 씨피티를 구비한 티브이에 있어서, 상기 증폭부로부터 증폭된 색신호(Rk/Gk/Bk)를 입력받아 이를 직류로 변환한후 소정 레벨로 감압하여 그에 따른 색신호(Rdc/Gdc/Bdc)를 출력하는 직류변환부와; 상기 직류변환부의 색신호 (Rdc/Gdc/Bdc)를 입력받아 그 색신호(Rdc/Gdc/Bdc)중 임의의 색신호 (Rdc/Gdc/Bdc)를 기준으로 각기 비교하여 그에 따른 비교신호를 출력하는 비교부와; 상기 비교부의 비교신호에 의해 색신호(R/G/B) 조정 팩터를 변경하여 상기 색출력부로부터 출력되는 색신호(R/G/B)의 기준 출력값을 변경하도록 제어하는 마이크로컴퓨터를 포함하여 구성함으로써 씨피티 전차총의 캐소드 저항편차가 상이함으로 인하여 반드시 수행하여야 하는 화이트 밸런스 조정을 별도의 장치를 이용하지 않고도 셋트 내부에서 자동으로 조정함으로 인하여 비용을 절감할 수 있을 뿐만 아니라 사용자가빈번하게 조정해야하는 번거로움을 제거할 수 있는 효과가 있다.
Patent KR-20010114040-A (KR)
Inventor: CHO YEON
IPC: G01N33/483
Filed: 2000-06-20
Abstract: 본 발명은, 기후 인자들의 영향을 고려하여 생성된 피부 자극 지수 및 이를 이용한 피부 미용 정보 제공 방법에 관한 것으로서, 본 발명에 의한 피부 자극 지수는, 일별 기후 인자들 중, 피부 자극에 영향을 미치는 기후 인자들로 설정하고, 이러한 기후 인자들의 값을 피부 자극에 미치는 영향의 정도에 따라서 등급별로 구분하고, 각 등급을 수치화하여, 각 기후 인자의 해당 등급의 수치를 연산하는 생성되는 것을 특징으로 한다. 또한, 본 발명에 의한 피부 자극 지수를 이용한 피부 미용 정보 제공 방법은, 본 발명에 의한 피부 자극 지수를 일별로 생성하여, 피부 자극 지수값 자체를 제공하거나, 피부 자극 지수의 범위에 따라서 피부 자극에 관련된 주의 정도를 알림에 의하여 피부 자극과 관련된 피부 미용 정보를 제공하는 것임을 특징으로 한다. 
     본 발명에 의하면, 기상 예보를 위하여 준비된 일별 기후 데이터를 효과적으로 이용하여, 기후 인자들의 영향을 고려하여 피부 자극 지수를 생성하고, 이를 이용하여 피부 미용 정보에 효과적으로 반영할 수 있는 피부 자극 지수와 이를 이용한 피부 미용 정보를 제공할 수 있다.
Patent KR-20020000818-A (KR)
Title: System for proffer to lecture service using internet
Inventor: SON JEONG HWAN
Filed: 2000-06-28
Abstract: PURPOSE: A system for lecture using the Internet is provided to be capable of giving a lecture with optimum costs between students and an instructor by providing the lecture information directly selected by the instructor according to the students. CONSTITUTION: An interface(110) connects between Internet network(40) and a server of a service provider. Membership information and the lecture information of an instructor are stored in DBs(111-114). A lecture information input window display part(102) displays input windows so that an instructor can input his lecture information for providing to students. A lecture information classifying part(103) classifies the lecture information input by the instructor for respective fields to store the classified information in the memory. A select request part(104) provides lecture fields for providing the lecture service to students, and requests to select one of the fields. A lecture information detect and display part(105) detects the lecture information corresponding to the selected field in the memory to display the detected information. A lecture fee setting part(106) determines the lecture fee of a predetermined instructor based on the selected lecture information. A controller(101) controls the respective component parts.
Patent KR-20010034989-A (KR)
Title: Method for cyber stock trading which is capable of retaining the initially deposited amount
Inventor: KIM YOUNG CHUL
Filed: 2000-06-29
Abstract: PURPOSE: A method for providing a virtual stock transaction for securing the principal sum of a deposit is provided to induce a client to participate in an actual investment by bringing up a latency investment client. CONSTITUTION: A client opens an account for a virtual stock transaction for securing the principal sum of a deposit in a financial institution(S310). A financial institution server stores information as a client name, an account number, a period for the deposit and a deposit amount in an actual account database(S320). A virtual account related to the information is set up (S330). The information of the set up virtual account is stored in a virtual account database(S340). If the client demands a virtual stock transaction(S350), the financial institution performs a virtual stock transaction in accordance with the demand of the client(S360). The result of the virtual stock transaction is stored in the virtual account database. If the client does not demand a virtual stock transaction or after the virtual stock transaction was performed in the S360 stage, it is detected whether the transaction is closed(S370). If the transaction is closed, an amount including a dividend in accordance with an earning rate of the virtual stock transaction is paid to the client(S380).
Patent KR-20020006569-A (KR)
Title: A cement concrete hardening material to treat heavy metals, and the method thereof
Inventor: LIM BUM KWAN
IPC: C04B28/02
Filed: 2000-07-10
Abstract: PURPOSE: A cement-based stabilizing agent for the secure disposal of wastes bearing hazardous constituents is provided to reduce the mobility of the hazardous constituents such as heavy metals and thereby limit the amount of constituent that can be leached when water or a mild acid solution comes into contact with waste matrix. CONSTITUTION: The cement-based stabilizing agent is produced by blending cement 360-440kg/m¬3; water 105-135kg/m¬3; bottom ash 820-1000kg/m¬3; aggregate 810-990kg/m¬3; 2-6wt.% of a stabilizing agent, based on the weight of cement to be blended, wherein the stabilizing agent is prepared by mixing NaCl 100-120g, Na2CO3 550-700g, NaAlO2 150-180g, FeCl3 20-50g, CaCl2 50-100g in 10L water.
Patent KR-20020007860-A (KR)
Title: Method of correcting time in internet and trading time management method using thereof
Inventor: BAEK SEUNG HEAN
IPC: G06Q30/00
Filed: 2000-07-19
Abstract: PURPOSE: A method for correcting a time on an Internet and a method for managing an electronic commerce time using the same are provided so that sites or users can be informed of an accurate time, by enabling a site for providing a standard time on the Internet to provide an accurate standard time to members or users accessing the site. CONSTITUTION: A user computer accesses a time server periodically or in a power-on state, and renews its time. That is, when a system is turned on or time is corrected, the user computer counts the time and accesses the time server after a predetermined time(301, 302). The user computer downloads a standard time from a time server, and calculates a network delay time(303, 304). Here, the network delay time is calculated according to a delay time calculation technology used in an Internet phone. In addition, the network delay time can be precisely calculated in consideration of a traffic amount. The standard time is corrected according to the delay time, and the time information of the user computer is replaced by the corrected standard time(305, 306). Accordingly, the user computer is operated in the precise standard time. The time correction procedure is periodically repeated(307).
Patent KR-20020010293-A (KR)
Title: Computer network-based total healthcare system and method
Inventor: CHO TAE YEON
Filed: 2000-07-29
Abstract: PURPOSE: A total health care system and a method thereof are provided to promote a health of a user and to be used for a self-diagnosis service by supplying an improved various health care related information through a communication network. CONSTITUTION: A web server(10) is connected to a communication network(100) as the Internet and controls each function. A web application(20) is connected to the web server(10) and executes each function. A data storing device(30) stores various kinds of data necessary for a service. An information search application(20a) performs functions for searching special medical information, medicine information, disease information, provider information including a hospital, a doctor, a drugstore, a pharmaceutical company, and a medical instruments manufacturing company, a medical related web site, and a medical related comparison evaluating information. A health managing application(20b) performs a function for managing general health care of a user. When a special doctor treats a patient, a medical examination and treatment application(20c) receives patient information as diagnosis information and a treatment and prescription information through a communication network for a decision-making. A consulting application(20d) supplies information related to a management of a medical institution and performs a consulting function through a question and answer to a client using a communication unit of an on-line and an off-line. When a client wishes to buy a medicine or a medical instrument, an electronic commercial transaction application(20e) performs a function for managing an order, a payment, and a delivery process.
Patent KR-20020011628-A (KR)
Title: Apparatus for removing plugging from fluidized bed combustor
Inventor: CHO JAE HONG
IPC: F23J3/00
Filed: 2000-08-03
Abstract: PURPOSE: A plugging remover of a fluidized bed furnace is provided to pulverize a sintered bed by supplying a small amount of water and injecting steam to the sintered bed. CONSTITUTION: A portion of high temperature fluid media is molten and stuck on the inner wall of a cyclone. The fluid media are concentrated on the bottleneck portion of the cyclone. Thus, an unnecessary sintered bed is formed. The sintered bed grows gradually, and a circulation system is plugged with the sintered bed. A steam injection device to inject steam or air to the plugged portion is installed in the cyclone. The injection device comprises a storage unit(60), a compressor(61), a pipe(62), a connecting pipe(63) and a nozzle(64). A globe valve is installed on one end of the connecting pipe to control the injection amount and pressure and to properly pulverize the sintered bed. Upon injecting air or steam to the sintered bed, the sintered bed is refrigerated and the bonding force of the sintered bed is weakened. Thereafter, water is injected to the sintered bed. Then, the sintered bed is crushed. The pulverized fluid media are discharged.
Patent KR-20010050019-A (KR)
Inventor: ISHII TOHRU
IPC: C02F1/26
Filed: 2000-08-08
Abstract: PURPOSE: A method for efficiently treating wastewater containing organohalogen compounds such as dioxins, coplanar polychlorinated biphenyl or the like is provided. CONSTITUTION: In washing the treatment apparatus for applying wet oxidizing treatment to wastewater containing the organohalogen compound, a washing liquid containing alkali or an acid is heated under pressure holding the washing liquid to a liquid phase to be used in the washing of the treatment apparatus.
Patent KR-20020012878-A (KR)
Title: A method for preparing ceramic powders for Y5V type multilayer ceramic Chip Capacitor
Inventor: HUH GANG HEON
IPC: C04B35/01
Filed: 2000-08-09
Abstract: PURPOSE: Provided is a powder preparation method for multilayer ceramic chip capacitors(MLCC) with excellent Y5V characteristics and reliability, which is characterized in that additives and/or sintering aids are added to powder synthesis process by solid state reaction unlike a conventional method adding additives to MLCC preparation process. CONSTITUTION: The multilayer ceramic capacitor powder, BaTiO3-based perovskite powder which has excellent F characteristics(Y5V), such as (Ba1-x-yCaxSry)m(Ti1-zZrz)O3, BCSTZ, and (Ba1-xCax)m(Ti1-zZrz)O3, BCTZ, is prepared by the following steps: mixing raw materials, BaCO3, CaCO3, SrCO3, TiO2 and ZrO2; primary calcining at 1100-1300deg.C; adding additives or/and sintering aids, where the additives are at least one compound(oxides, carbonates, nitrates, etc.) of element selected from La, Sm, Dy, Ho, Er, Yb, Mn, etc.; primary grinding; secondary calcining at 1100-1300deg.C; optionally adding additives or/and sintering aids; and secondary grinding to be 0.4-0.6micrometer of size.
Patent KR-20010070021-A (KR)
Title: A process for the fermentative preparation of metabolic products and for the nucleotide sequences encoding for the sod gene
Inventor: GUYONVARCH ARMEL
IPC: C12N9/02
Filed: 2000-08-11
Abstract: PURPOSE: To obtain a new preferable recombinant DNA from a bacterium of the genus Corynebacterium, replicable in a coryneform bacterium, having a nucleotide sequence encoding a specific sod gene, useful for producing L-lysine, etc., by fermentation, etc. CONSTITUTION: This new preferable recombinant DNA is replicable in a coryneform bacterium, has at least a nucleotide sequence encoding a sod gene of the formula, is obtained from a bacterium of the genus Corynebacterium and is useful for a method for producing a vitamin and an L-amino acid, especially L-lysine by using a coryneform bacterium for amplifying the sod gene by fermentation. The recombinant DNA is obtained by culturing Corynebacterium melassecola ATCC 17,965, extracting a genome DNA by a routine procedure, constituting a genome DNA bank by using the genome DNA, screening the genome DNA bank by using a partial sequence of a super oxide dismutase gene (sod) as a probe and inserting the obtained sod gene into a vector.
Patent KR-20010050147-A (KR)
Inventor: FARR HOWARD JOHN
IPC: C23C10/26
Filed: 2000-08-22
Abstract: PURPOSE: A method for applying protective coatings on substrates employed in high temperature is provided. CONSTITUTION: The method for forming a platinum-aluminide layer on a superalloy substrate includes (i) depositing a platinum slurry on the substrate; (ii) heating the platinum slurry to a temperature high enough to remove substantially all volatile material from the slurry; (iii) depositing an aluminum slurry over the platinum slurry; (iv) heating the aluminum slurry to a temperature high enough to remove substantially all volatile material from the aluminum slurry; and then (v) heating the slurry coated substrate under diffusion treatment conditions sufficient to form a platinum-aluminide layer over the substrate.
Patent KR-20000064230-A (KR)
Inventor: WOO BOO GOO
IPC: H04M17/00
Filed: 2000-08-31
Abstract: PURPOSE: A method for utilizing coins in pay phones is provided to deposit coins on cyber accounts in the pay phones or to participate events, so as to appropriately utilize the coins. CONSTITUTION: A sensor of a pay phone recognizes a coin when the coin is inserted into a pay phone slit. When a dial tone is generated, a user presses number buttons or code buttons to connect with a site.
Patent KR-20020019276-A (KR)
Title: Apparatus and method for measuring the width of the strip and method for correcting the measuring value
Inventor: CHO CHAN JUN
IPC: G01B11/04
Filed: 2000-09-05
Abstract: PURPOSE: A device and method for measuring width of a strip is provided to automatically compensate an error without fixing pieces and to improve workability. CONSTITUTION: A device for measuring width of a strip comprises a moving wheel attached to a lower portion of a frame; a moving motor installed on the frame; a moving trunk unit moving on a rail; a lamp box(112) formed of light emitting diode(111) by being assembled in the moving trunk unit; a sensor protecting box(117) having inner and outer edge sensors(113,116) by being mounted on the lamp box; a transferring shaft(115) moving the lamp box left and right; a light source unit having a timing belt(119) and a limit sensor(118); a fixed piece supplying motor rotating a fixed piece; and a clock generator generating a CCD sensor driving signal into a CCD camera.
Patent KR-20020020113-A (KR)
Title: Manufacturing method for regular spangle hot dip galvanizing and the system thereof
Inventor: BAEK YONG HAE
IPC: C23C2/06
Filed: 2000-09-08
Abstract: PURPOSE: Manufacturing method and apparatus are provided to manufacture a high quality regular spangle hot dipped galvanized iron by injecting spangle coarsening alloy elements along with air or nitrogen onto the strip after controlling a plating adhesion amount of a hot dipped galvanized strip with an air knife. CONSTITUTION: The manufacturing method of a regular spangle hot dipped galvanized iron comprises the process of injecting alloy elements in which Sn, Bi, Cd, Pb or Sb powder is mixed with Zn powder along with air or nitrogen onto the surface of a strip passing through a galvanizing bath and an air knife. In a manufacturing apparatus of a regular spangle hot dipped galvanized iron, wherein a galvanizing bath through which a strip(S) passes is installed at the lower part, and an air knife, an alloy element injector(30), a cooling unit and a guide roll are sequentially installed at the upper part of the galvanizing bath, the apparatus is characterized in that an injection body on the strip facing surface of which intake ports(33) and an injection port(32) are formed is equipped at both sides of the alloy element injector(30) around the strip(S), a suction pipe(34) and an injection pipe(35) connected to the intake ports(33) and injection port(32) are installed at one side of the injection body, a blower(36) is installed at a part where the suction pipe(34) and injection pipe(35) meet, and a hopper(38) at the bottom part of which an actuator(37) is installed is installed at one side of the suction pipe(34).
Patent KR-20010067182-A (KR)
Title: Hydraulic drive equipment for working vehicle
Inventor: IKARI MASANORI
IPC: F16H47/04
Filed: 2000-09-15
Abstract: PURPOSE: A hydraulic driving device for a machine is provided to obtain the desired speed reduction ratio and to minimize the size, and to reduce shocks when engaging with a clutch. CONSTITUTION: A hydraulic driving device for a machine has a first hydraulic motor(8), a second hydraulic motor(11), a first input shaft(5) connected to the first hydraulic motor and a second input shaft(7) for freely engaging with the second hydraulic motor. The hydraulic driving device transmits output torque of the first and second hydraulic motors to an output shaft(2). The output shaft and the first input shaft, and the output shaft and the second input shaft are respectively connected via gear trains(3,4,6). A planetary gear(21) is interposed between the second hydraulic motor and the second input shaft. A clutch(10) for freely engaging the second hydraulic motor and the second input shaft is arranged between a ring gear(29) of the planetary gear device and a housing(24). The speed reduction ratios of the first and second input shafts to the output shaft are set independently. Therefore, the torque transmission efficiency of the hydraulic motors is enhanced.
Patent KR-20010067193-A (KR)
Title: Method of fabricating a single crystal
Inventor: SAKURAGI SHIRO
IPC: C30B15/30
Filed: 2000-09-19
Abstract: PURPOSE: To provide a method of producing a single crystal, by which a product having a prescribed shape can be obtained without cutting and polishing. CONSTITUTION: A vessel 1 for accommodating a molten liquid 3 is provided and heaters 2 are symmetrically arranged on both sides of the vessel 1. The vessel 1 has such a form that the cross section at the front is symmetrical. Then, the vessel 1 is filled with the molten liquid 3 of a crystal and the vessel is heated with the heaters 2 to form a temperature gradient such that the temperature at the upper part of the vessel 1 is higher than the temperature at the lower part of the vessel 1, thereby the high temperature molten liquid ascends along the inner wall surface of the vessel 1. At that time, the molten liquid present in the left side of the flat plane (mirror symmetry plane) including a vertical line dividing the vessel 1 into equal halves ascends clockwise and the molten liquid present in the right side of the mirror symmetry plane ascends counterclockwise. The both liquids each having symmetrical flow collide at the mirror symmetry plane of,the upper end of the vessel 1 and the both move as the descending flow toward the lower end of the vessel 1, being a lower temperature part. When the temperature at the lower end of the vessel 1 is gradually lowered to a temperature lower than the melting point of the molten material, the molten liquid is turned into a single crystal.
Patent KR-20020022283-A (KR)
Title: System for on-line selling encrypted digital contents
Inventor: KIM JANG WOO
Filed: 2000-09-19
Abstract: PURPOSE: A digital content selling system is provided to enhance reliability and efficiency by controlling the sale based on a license and transparently recording a log history. CONSTITUTION: The on-line digital content selling system comprises a content provider(10), a web seller(20), an automatic seller(30), and a user(40). The content provider converts digital contents(11) into encoded contents(12) and registers the encoded contents with a file server(13). The content provider actively offers a license to a license offering server or stores a log history about the contents sold. The web seller sells the contents to the user based on the license and stores a log history in a database(21) of a web server. The log history is transmitted to the content provider. The automatic seller distributes a license offered by the content provider to a vending machine(32) managed by a vending machine server(31). The sale log history of the vending machine is stored in a database and transmitted to the content provider. The licenses or contents files are updated by the content provider.