WO2006025241A1 - Dispositif de transmission de donnees, dispositif de reception de donnees, serveur, systeme de partage de donnees, programme de transmission de donnees, programme de reception de donnees, programme de partage de donnees et support d’enregistrement lisible par un ordinateur - Google Patents

Dispositif de transmission de donnees, dispositif de reception de donnees, serveur, systeme de partage de donnees, programme de transmission de donnees, programme de reception de donnees, programme de partage de donnees et support d’enregistrement lisible par un ordinateur Download PDF

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Publication number
WO2006025241A1
WO2006025241A1 PCT/JP2005/015364 JP2005015364W WO2006025241A1 WO 2006025241 A1 WO2006025241 A1 WO 2006025241A1 JP 2005015364 W JP2005015364 W JP 2005015364W WO 2006025241 A1 WO2006025241 A1 WO 2006025241A1
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WO
WIPO (PCT)
Prior art keywords
data
shared
information
shared data
server
Prior art date
Application number
PCT/JP2005/015364
Other languages
English (en)
Japanese (ja)
Other versions
WO2006025241A8 (fr
Inventor
Toshiyuki Tanaka
Original Assignee
Sharp Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Priority to JP2006531951A priority Critical patent/JPWO2006025241A1/ja
Publication of WO2006025241A1 publication Critical patent/WO2006025241A1/fr
Publication of WO2006025241A8 publication Critical patent/WO2006025241A8/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/42—User authentication using separate channels for security data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3226—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using a predetermined code, e.g. password, passphrase or PIN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/80—Wireless

Definitions

  • Data transmission device data reception device, server, data sharing system, data transmission program, data reception program, data sharing program, and computer-readable recording medium
  • the present invention relates to a data transmission device, a data reception device, and a server that share information among a plurality of devices.
  • authentication is performed when a user registers information with a server.
  • the server that has received the information for sharing only transmits the reference information for referring to the information to a previously registered device.
  • the device that has received the reference information can browse the information to be shared only by accessing the server based on the reference information.
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to provide a data transmission device, a data reception device, and a server for reliably sharing information only between specific users. It is to provide.
  • the server provides a shared data acquisition unit that receives shared data shared between a plurality of devices from a data transmission device, the received shared data, and the shared data.
  • Management means for associating and managing shared device information related to a device that shares a device, and when receiving shared data, based on the shared device information, to the data receiving device that should share the shared data,
  • Identification information transmitting means for transmitting the shared data identification information for specifying data and the authentication information (password) for downloading the shared data from its own device using a telephone line, and a communication speed higher than that of the telephone line.
  • sharing indicates that a plurality of devices have the same shared data transmitted from the data transmitting device.
  • the shared data identification information is information for specifying the shared data. Specifically, the shared data identifier (name) or information indicating the location where the shared data is stored is shared data. Corresponds to identification information.
  • the shared data identification information has a smaller amount of information than the shared data.
  • the data receiving device determines whether the authentication information transmitted by the data receiving device is the authentication information transmitted by the server itself, and the data receiving device power is also downloaded based on the determination result. Sending requested shared data. Specifically, when the authentication information matches, the shared data requested to be downloaded is transmitted to the data receiving device.
  • the authentication information is transmitted to the data receiving apparatus using a telephone line.
  • phone The line is a safe line with little risk of information leakage on the transmission line when sending and receiving information. Therefore, by transmitting authentication information using a telephone line, it is possible to prevent the authentication information from leaking to anyone other than the data receiving device.
  • the download request including the received authentication information and the shared data to be transmitted to the data receiving device are preferably transmitted and received in an encrypted state on the transmission path.
  • the authentication information and shared data can be prevented from leaking between transmission path information from the server to the data receiving device. Therefore, with the above configuration, shared data can be reliably shared only between specific users (between a specific data transmitting device and a specific data receiving device).
  • a data receiving apparatus is a data receiving apparatus that receives data from a server that stores shared data that is information that should be shared among a plurality of apparatuses.
  • Identification information receiving means for receiving the shared data identification information for identifying the shared data and the authentication information for downloading the shared data from the server from the server via the telephone line, and the shared data
  • a request information transmitting means for transmitting a download request for downloading the authentication information and the authentication information to the server using the communication line (A) having a communication speed faster than the telephone line, and the shared data. It is characterized by comprising shared data receiving means for receiving the shared data specified by the identification information from the server via the communication line (A).
  • the shared data identification information is information for specifying the shared data. Specifically, the shared data identifier (name) or the location where the shared data is stored is the shared data. Corresponds to identification information.
  • the shared data identification information has a smaller amount of information than the shared data. According to the above configuration, the shared data identification information is transmitted from the server. Receiving using a talk line. Therefore, even a telephone line with a generally low communication speed can be received.
  • authentication information for acquiring shared data is received from the server, and when acquiring the shared data, the authentication information is transmitted to the server. This prevents, for example, a third party who does not know the authentication information from acquiring the shared data.
  • the data receiving apparatus receives the shared data identification information from the server. Thereby, the existence of shared data can be known. In other words, since the data receiving device receives the shared data identification information when the shared data exists in the server, it is necessary for the data receiving device to inquire whether the server has the shared data. Absent.
  • the shared data is received using the communication line (A) having a higher communication speed than the telephone line. Since the communication line (A) has a higher communication speed than the telephone line, for example, even shared data with a large amount of information can be received well.
  • the shared data is obtained (received) using the authentication information transmitted from Sano, so that other devices that do not have the authentication information can share the shared data. I can't get the data.
  • a data transmission device is a data transmission device that transmits shared data shared among a plurality of devices to a server, and accesses the server.
  • Authentication information receiving means for receiving authentication information from the server via a telephone line, and a communication line having a communication speed higher than that of the telephone line for transmitting shared data with the authentication information to the server.
  • device-side shared data transmitting means for transmitting using B).
  • authentication information is received using a telephone line, so that the data transmission device can receive the authentication information safely and reliably.
  • the shared data is transmitted using the communication line (B) having a higher communication speed than the telephone line. For example, even large-capacity data is transmitted at high speed. be able to.
  • the communication line (B) may be the same as or different from the communication line (A) that transmits shared data from the server to the data receiving device.
  • a data sharing system is characterized by including the data transmitting device, the server, and the data receiving device in order to solve the above problems.
  • the data transmission device, the data reception device, and the server may be realized by a computer.
  • the image forming control system is operated by causing the computer to operate as each means.
  • a data transmission apparatus, a data reception apparatus and a server data transmission program, a data reception program, a data sharing program, and a computer-readable recording medium on which the data transmission program is implemented, are also included in the scope of the present invention.
  • FIG. 1 illustrates an embodiment of the present invention, and is a diagram for explaining various information flows exchanged among a data transmission device, a server, and a data reception device.
  • FIG. 2 is a block diagram showing a schematic configuration of a data transmitting apparatus according to the present embodiment.
  • FIG. 3 is a block diagram showing a schematic configuration of a data receiving apparatus according to the present embodiment.
  • FIG. 4 is a block diagram showing a schematic configuration of a server that works on the present embodiment.
  • FIG. 5 is a diagram showing an example of a management table.
  • FIG. 6 is a state transition diagram showing exchange of information between the server and the data transmission device.
  • FIG. 7 is a state transition diagram showing exchange of information between the server and the data receiving device.
  • FIG. 8 is a diagram showing another configuration of the data receiving apparatus.
  • FIG. 9 is a diagram showing the contents of information exchanged between the server, the data transmitting device, and the data receiving device.
  • the data transmission apparatus acquires authentication information from Sano via a telephone line, and uses the high-speed communication line to share the authentication information and shared data to be shared among a plurality of apparatuses. It is the structure which transmits.
  • the data receiving apparatus receives the shared data identification information and authentication information related to the shared data from the server via the telephone line, and is based on the shared data identification information and authentication information!
  • shared data is received from the server in an encrypted state using a high-speed communication line.
  • the authentication information transmitted from the server to the data transmission device is described as authentication information
  • the authentication information transmitted from the server to the data reception device is described as a password.
  • the server receives the shared data to be shared by the plurality of devices from the data transmission device in an encrypted state, and the shared data and a device that shares the shared data.
  • the shared data identification information related to the shared data and the password for acquiring the shared data to the data receiving apparatus that is a device to be shared, the password transmitted from the data receiving apparatus
  • the shared data reception request it is determined whether or not the received password and the password transmitted by itself are the same. If they are the same, the shared data is received by the data receiving apparatus. It is the structure which transmits existence data. This will be described in detail below.
  • FIG. 2 is a block diagram showing a schematic configuration of the data transmission device 1 according to the present embodiment.
  • the data transmission device 1 includes a transmission side communication unit 11, a transmission side information transmission unit 10, a transmission side information reception unit 12, an image data storage unit 15, a camera unit 16, a transmission data creation unit 14, and a transmission side wireless LAN communication unit. It is equipped with thirteen.
  • the transmission side communication unit 11 transmits / receives information to / from the outside of the server 2 or the like via the telephone line 4. Specifically, the transmission side communication unit 11 delimits communication data transmitted over the telephone line 4 and converts it into packet data for the LAN environment, or converts the packet data into data for communication over the telephone line 4. Or convert.
  • the transmitting side information transmitting unit 10 transmits various information to the server 2 via the telephone line 4.
  • the transmission side information transmission unit 10 includes a sharing destination setting unit 17.
  • the sharing destination setting unit 17 creates information (shared device information) related to a sharing destination that is shared from a plurality of devices and is transmitted from the data transmitting device 1 to the server 2. . That is, the sharing destination setting unit 17 determines a sharing destination for sharing the shared data.
  • the transmitting side information receiving unit 12 receives and acquires information from the outside via the telephone line 4.
  • the transmission side information reception unit 12 includes an authentication information acquisition unit 18.
  • the authentication information acquisition unit 18 acquires authentication information received from the server 2 via the telephone line 4.
  • the camera unit 16 is an image sensor.
  • the image data storage unit 15 stores the image data captured by the camera unit 16. Note that the image data storage unit 15 can also store data transmitted from other devices as well as image data captured by the camera unit 16.
  • the transmission data creation unit 14 creates information to be transmitted to the server 2. Specifically, the transmission data creation unit 14 adds the authentication data to the shared data shared with other devices among the data stored in the image data, thereby transmitting the data to the server 2. Create data.
  • the transmission-side wireless LAN communication unit 13 transmits and receives information to and from an external device via the wireless LAN line 5.
  • the transmission-side wireless LAN communication unit 13 transmits the transmission data created by the transmission data creation unit 14 to the server 2.
  • the transmission side wireless LAN communication unit 13 includes a transmission side area determination unit 19.
  • the transmission-side area determination unit 19 determines whether or not the data transmission device 1 is within a range where information can be transmitted / received to / from the outside using the wireless LAN line 5. That is, the transmission-side coverage determining unit 19 determines whether or not the data transmitting device 1 can transmit and receive data using the wireless LAN line 5.
  • FIG. 3 is a block diagram showing a schematic configuration of the data receiving apparatus 3 that works on the present embodiment.
  • the data receiving device 3 includes a receiving-side communication unit 31, a receiving-side information acquisition unit 32, a receiving-side information creation unit 33, a receiving-side wireless LAN communication unit 34, and a shared data storage unit 35.
  • the receiving side communication unit 31 transmits / receives various information to / from the outside via the telephone line 4.
  • the reception side information acquisition unit 32 acquires and holds various types of information necessary for acquiring shared data from various types of information received via the reception side communication unit 31. More specifically, the receiving side information acquisition unit 32 acquires the shared data identification information (hereinafter referred to as identification information) for identifying the shared data from the server 2 and the shared data from the server 2. Obtain and retain the necessary password (authentication information).
  • identification information shared data identification information
  • the reception side information creation unit 33 sends the server 2 to the server 2 based on the identification information and password acquired by the reception side information acquisition unit 32 and the shared data stored in the shared data storage unit 35. To create a download request. Specifically, the receiving side information creation unit 33 uses the identification information acquired by the receiving side information acquisition unit 32 and the shared data stored in the shared data storage unit 35 to receive the receiving side information creation unit 33. When the shared data corresponding to the identification information is not stored in the shared data storage unit 35, a download request for downloading the shared data from the server 2 is created. Then, the receiving side information creation unit 33 transmits the created download request and password to the server 2 via the wireless LAN line 5.
  • the comparison unit 38 compares the content related to the shared data included in the identification information with the information stored in the shared data storage unit 35, and compares the shared data corresponding to the identification information. It is determined whether or not the data is already held by the data receiving device 3.
  • the reception-side wireless LAN communication unit 34 transmits / receives information to / from an external device via the wireless LAN line 5. Specifically, the reception-side wireless LAN communication unit 34 transmits the download request and password created by the reception-side information creation unit 33 to the server 2.
  • the reception-side wireless LAN communication unit 34 includes a reception-side area determination unit 37.
  • the receiving-side coverage determining unit 37 determines whether or not the data transmitting apparatus 1 is within a range where information can be transmitted / received to / from the outside using the wireless LAN line 5. That is, the reception-side coverage determining unit 37 determines whether or not the data transmission device 1 can transmit and receive data using the wireless LAN line 5.
  • the shared data storage unit 35 stores (stores) shared data transmitted from the server 2.
  • the shared data storage unit 35 may store data other than the shared data.
  • FIG. 4 is a block diagram showing a schematic configuration of the server 2 that works according to the present embodiment.
  • the LAN communication unit 22 is described separately for the data transmission device 1 and the data reception device 3, but these may be the same or different.
  • the server 2 includes a server side communication unit 21, a server side wireless LAN communication unit 22, a management unit 24, an information storage unit 23, and a server side transmission information creation unit 25.
  • the server side communication unit 21 transmits and receives information via the telephone line 4. Specifically, the server-side communication unit 21 transmits / receives information to / from the data transmission device 1 and the data reception device 3 via the telephone line 4.
  • the server-side wireless LAN communication unit 22 transmits and receives information via the wireless LAN line 5. Specifically, the server-side wireless LAN communication unit 22 transmits / receives information to / from the data transmission device 1 and the data reception device 3 via the wireless LAN line 5.
  • the information storage unit 23 stores various information and data.
  • the information storage unit 23 includes a management table storage unit 41 and a shared data storage unit 40.
  • the shared data storage unit 40 stores the shared data received from the data transmission device 1.
  • the shared data may be stored for each folder unit including a plurality of shared data, or may be stored for each shared data unit.
  • the management table storage unit 41 stores a correspondence between the shared data and shared device information that is information regarding a sharing destination that shares the shared data. Specifically, the association is recorded on a management table, and the management table storage unit 41 stores this management table. A specific example of the management table will be described later.
  • the server-side transmission information creation unit 25 creates transmission data to be transmitted to the data reception device 3. Then, the server-side transmission information creation unit 25 creates the identification information Part 48 is provided.
  • the identification information creation unit 48 creates identification information with reference to the shared data storage unit 40 and the management table storage unit 41 of the information storage unit 23. Then, the server-side transmission information creation unit 25 creates transmission data including the identification information and a password created by the password creation unit 44 described later.
  • the management unit 24 manages the received data based on various types of data transmitted from the data transmission device 1 and the data reception device 3. Specifically, when the management unit 24 creates authentication information for the data transmission device 1 and receives shared data with the authentication information from the data transmission device 1, the management information 24 is appropriate. If it is appropriate, the shared data is saved and the authentication information and the shared information are associated with each other. Further, when the management unit 24 receives from the data transmission device 1 the shared device information related to the sharing destination that shares the shared data, the management unit 24 manages the shared data and the shared device information in association with each other.
  • the management unit 24 creates a password for the data receiving device 3 and receives a download request with a password attached thereto from the data receiving device 3, the management unit 24 is able to use the appropriate password. If it is appropriate, the shared data is transmitted to the data receiving apparatus 3 based on the download request.
  • the management unit 24 includes a password determination unit 43, a password creation unit 44, and a management table management unit 45.
  • the management table management unit 45 includes a transmission side management unit 46 and a reception side management unit 47.
  • the password creation unit 44 creates a password and authentication information according to an instruction from the management table management unit 45.
  • the authentication information is exchanged between the data transmission device 1 and the server 2, and the exchange between the data reception device 3 and the server 2 is not used. It is described as a password and has the same meaning.
  • the password determination unit 43 the authentication information (password) received from the data transmission device 1 (data reception device 3) and the authentication information (password) stored in the management table storage unit 41 are the same. It is determined whether or not. More specifically, the password determination unit 43 The authentication information (password) transmitted from the data transmission device 1 (data reception device 3) is created by the password creation unit 44 and stored in the management table storage unit 41, and the authentication information (password) matches the authentication information (password). It is to judge whether or not.
  • the management table management unit 45 is configured to generate a password determination unit 43 and a password creation unit based on various data transmitted from the data transmission device 1 or the data reception device 3.
  • the transmission side management unit 46 instructs the password creation unit 44 to create authentication information and authenticates the password determination unit 43.
  • An information determination instruction, a shared data storage instruction to the shared data storage unit 40, a management table update, and the like are performed.
  • the receiving side management unit 47 instructs the password creation unit 44 to create a password, and instructs the identification information creation unit 48 to create transmission data to be transmitted to the data receiving device 3.
  • the password determination unit 43 is instructed to determine the password transmitted from the data receiving device 3, and to transmit shared data.
  • management table stored in the management table storage unit 41 will be described.
  • management is performed in units of folders that can store a plurality of shared data.
  • FIG. 5 is a diagram showing an example of the management table. As shown in Fig. 5, the management table records the folder name, the user ID of the folder creator, the sharing destination list (shared device information), and the file list in the folder.
  • the sharing destination list includes a sharing destination user ID, a password, and a mail address of the sharing destination user
  • the file list in the folder includes a file name and a user ID of the registrant. It is included.
  • the above management table management unit 45 is based on the above management table! In this way, shared data and shared device information are managed in association with each other.
  • FIG. 1 illustrates each of the exchanges among the data transmission device 1, the server 2, and the data reception device 3. It is drawing explaining the flow of information of a kind.
  • an ID unique to the data transmission device 1 is transmitted from the data transmission device 1 to the server 2 via the telephone line 4.
  • the ID may be unique to the device. If the data transmitting device 1 is a mobile phone, the phone number may be used as the ID.
  • the server 2 receives the ID, it creates authentication information, and transmits the created authentication information to the data transmission device 1 via the telephone line 4.
  • the data transmission device 1 performs shooting using the camera unit 16. Then, the image data obtained by photographing is stored in the image data storage unit 15. Note that shooting using the camera unit 16 may be performed in advance, or may not be performed when shared data to be shared already exists in the image data storage unit 15.
  • the data transmission device 1 connects the wireless LAN line 5 to the shared data storage unit 40 of the server 2.
  • the shared data is transmitted through the network.
  • the shared data may be transmitted when the data transmitting apparatus 1 moves and enters the wireless LAN area.
  • the server 2 sends the data receiving device 3 a node that is necessary for downloading the shared data.
  • the identification information for specifying the newly stored shared data is transmitted via the telephone line 4.
  • the data receiving device 3 that has received the password and the identification information determines whether or not confidence is within the wireless LAN, and if it is within the range, the data receiving device 3 is connected to the server 2 via the wireless LAN line 5. Send a download request to download the password and shared data.
  • the server 2 that has received the password and the download request determines whether or not the password is appropriate. In other words, the server 2 has the same password as the password that it received. If the power is the same, the shared data is transmitted to the data receiving device 3 via the wireless LAN line 5.
  • a request for downloading terminal data sharing data without knowing the password is made. If it is received, the terminal does not know the password and cannot download it.
  • FIG. 6 is a state transition diagram showing the exchange of information between the server 2 and the data transmitting device 1
  • FIG. 7 is a state showing the exchange of information between the server 2 and the data receiving device 3. It is a transition diagram.
  • various information flows exchanged among the data transmission device 1, the server 2, and the data reception device 3 will be described in more detail.
  • the transmission side information receiving unit 12 of the data transmission device 1 uses the ID on the data transmission device 1 for acquiring authentication information from the server 2 and the telephone line 4 using the transmission side communication unit 11.
  • the ID is unique to the data transmission device 1, and this ID is set in advance in each device. For example, when the data transmission device 1 is a mobile phone, a telephone number corresponds to the ID. In the drawing, the ID is described as UID.
  • the transmission side management unit 46 When the ID is received from the data transmission device 1 via the server communication device (S12), the transmission side management unit 46 operates the password creation unit 44 to obtain authentication information corresponding to the ID. Create (S13). Then, the transmission side management unit 46 transmits the created authentication information to the data transmission device 1 via the telephone line 4 using the server side communication unit 21 (S14). Then, the transmission side management unit 46 stores the received ID and the created authentication information in the management table storage unit 41 of the information storage unit 23 (S15).
  • the authentication information acquisition unit 18 acquires the authentication information (S16).
  • the transmitting side information transmitting unit 10 operates the sharing destination setting unit 17 to create shared device information (S17). Then, the transmission side information transmission unit 10 transmits the created shared device information, authentication information, and ID to the server 2 via the telephone line 4 (S18).
  • the transmission side management unit 46 stores these pieces of information in the management table storage unit 41 (S2 0). ). Thereby, the sharing destination for sharing the shared data is set.
  • the shared data is transmitted from the data transmission device 1 to the server 2.
  • the transmission data creation unit 14 shares the shared data stored in the image data storage unit 15. Transmission data to be transmitted to the server 2 is created based on the existence data and the authentication information and ID transmitted from the transmission side information receiving unit 12 (S21). Then, the transmission data creation unit 14 transmits the created transmission data to the server 2 via the wireless LAN line 5 using the transmission-side wireless LAN communication (S22). At this time, it is preferable that the transmission-side wireless LAN communication unit 13 encrypts and transmits the transmission data to the server 2 when transmitting the transmission data.
  • the transmission side management unit 46 operates the password determination unit 43 to store the authentication information included in the transmission data and the management table storage unit 41. It is determined whether or not the transmission data is appropriate with reference to the authentication information contained in the management table (S24). More specifically, the password determination unit 43 determines whether or not the power corresponding to the combination of authentication information and ID included in the transmission data and included in the management table of the authentication information and ID included in the transmission data. to decide. If the password determination unit 43 determines that the combination of authentication information and ID is included in the management table, the password determination unit 43 returns an appropriate message to the transmission side management unit 46. On the other hand, if the password determination unit 43 determines that it is not applicable, the password determination unit 43 returns an appropriate message to the transmission side management unit 46.
  • the transmission side management unit 46 Upon receiving an appropriate notification from the password determination unit 43, the transmission side management unit 46 stores the received shared data in the shared data storage unit 40 (S25) and stores the management table.
  • the management table stored in the unit 41 is updated to associate the shared data with the shared device information. More specifically, the transmission side management unit 46 searches the management table power stored in the management table storage unit 41 for information corresponding to the authentication information and ID of the received transmission data, and searches the corresponding authentication information and ID.
  • the shared device information associated with the ID is associated with the received shared data.
  • the transmission side management unit 46 discards the received transmission data.
  • shared data to be shared is stored in the shared data storage unit 40 of the server 2, and a management table in which the shared data is associated with the sharing destination to be shared is created.
  • the transmission of the management table management unit 45 The side management unit 46 notifies the reception side management unit 47 that the shared data has been stored.
  • Receiving side management unit 47 that has received the notification that new shared data has been stored operates password generation unit 44 to generate a password for downloading the newly stored shared data (S31). .
  • the receiving side management unit 47 associates the created password with the shared data.
  • the receiving side management unit 47 updates the management table, and associates the shared data with the ID and password of the sharing destination that shares the shared data.
  • the reception side management unit 47 transmits to the server side transmission information creation unit 25 that the created password and new shared data are stored.
  • the server-side transmission information creation unit 25 that has received the information that the new shared data has been stored and the identification information that can identify the newly stored shared data by operating the identification information creation unit 48.
  • the identification information creation unit 48 creates identification information for identifying newly stored shared data such as an identifier such as a name of shared data and a location where the shared data is stored. (S32).
  • the server-side transmission information creation unit 25 based on the management data sharing device information stored in the management table storage unit 41, transmits the password and the identification information at the shared data sharing destination.
  • the data is transmitted to a certain data receiver 3 using the telephone line 4 (S33).
  • the password is indicated as PW.
  • the receiving side information acquiring unit 32 operates the password acquiring unit 36 to acquire and hold the password.
  • the identification information is displayed on a display unit (not shown), and it is determined whether or not the user has the ability to acquire shared data.
  • the receiving side information creation unit 33 creates a download request for downloading the shared data (S35).
  • the receiving side information creation unit 33 refers to the shared data storage unit 35 and determines whether or not the shared data to be acquired from the server 2 already exists. If the shared data to be acquired from Server 2 has already been saved, A message to that effect is displayed and the shared data download process is terminated.
  • the receiving side information creation unit 33 issues a download request for acquiring the shared data. create.
  • This download request may be, for example, the name of shared data to be downloaded or the storage destination address of shared data to be downloaded.
  • the receiving side information creation unit 33 acquires the password transmitted from the server 2 from the password acquisition unit 36.
  • the receiving side information creation unit 33 transmits the download request, password, and ID unique to the data receiving device 3 to the server 2 via the wireless LAN line 5 (S36).
  • the reception-side management unit 47 Upon receiving the download request, the password, and the ID via the server-side wireless LAN communication unit 22 (S37), the reception-side management unit 47 operates the password determination unit 43 so that the received password is appropriate. It is determined whether or not (S38).
  • the receiving-side management unit 47 operates the password determination unit 43, and corresponds to the combination of the password and ID included in the received ID and password combination management table. Judge whether the power to do. If there are applicable items, it is appropriate. If there is no applicable item, it is determined not appropriate. If it is determined to be inappropriate, the process is terminated.
  • the receiving-side management unit 47 transmits the shared data corresponding to the download request to the data via the wireless LAN line 5.
  • the data is transmitted to the receiving device 3 (S39).
  • the receiving-side wireless LAN communication unit 34 transmits the shared data to the shared data storage unit 35 and stores it. In this way, the data receiving device 3 receives shared data to be shared.
  • the wireless LAN line 5 has a smaller area where information can be transmitted and received compared to the telephone line 4. Even if information can be obtained via the telephone line 4, information can be obtained via the wireless LAN. There is an area that cannot be done. Therefore, the receiving side wireless LAN communication unit 34 determines the receiving side coverage area.
  • a fixed part 37 is provided. In this embodiment, the reception-side coverage determining unit 37 determines that information can be transmitted / received using the wireless LAN line 5, and various information is transmitted / received using the wireless LAN line 5. Go and go.
  • step S20 the transmission-side management unit 46 that has received the shared device information, the authentication information, and the ID uses the password determination unit 43 to transmit the received authentication information and management table storage unit. It is possible to judge whether or not it is the same as the authentication information stored in 41! /. Then, only when they are the same, the shared device information may be stored in the management table.
  • a nose word transmitted from the server 2 to the data receiving device 3 is used as a decryption key that can decrypt encrypted information encrypted with a specific encryption key.
  • the shared data encrypted with the specific encryption key may be transmitted.
  • the data receiving device 3 may decrypt the encrypted shared data using the decryption key as the password V! ,.
  • the configuration is described in which the shared device information is transmitted separately from the shared data.
  • the shared information may be transmitted simultaneously with the shared data.
  • shared device information only the information specifying the sharing destination needs to be transmitted to the server together with the shared data.
  • the server 2 includes the reception side management unit 46 that receives shared data shared between a plurality of devices from the data transmission device 1, and the shared data storage unit that stores the shared data. 40, the management table management unit 45 that manages the received shared data and the shared device information about the device that shares the shared data in association with each other, and receives the shared data, based on the shared device information For the data receiving device 3 that shares the shared data, the identification information for identifying the shared data (shared data identification information) and the authentication information for downloading the shared data from its own device The shared data received from the data receiving device 3 via the server side transmission information creation unit 25 that transmits using the line 4 and the wireless LAN line that has a higher communication speed than the telephone line 4 described above.
  • Password determination unit 43 that determines whether matches the authentication information force authentication information sent from the own apparatus is added to the download request for Unrodo, the password If the determination unit 43 determines that the data matches, the shared data based on the download request is transmitted to the data receiving device 3 using a wireless LAN line (high-speed communication line) whose communication speed is faster than the telephone line 4.
  • Receiving-side management unit 47 Receiving-side management unit 47.
  • the identification information is information for specifying shared data, and specifically, the identifier (name) of shared data or shared data is stored! The information indicating the position corresponds to the identification information.
  • the identification information has a smaller information amount than the shared data.
  • the data receiving device 3 it is determined whether the authentication information transmitted by the data receiving device 3 is the authentication information transmitted by the server 2 itself, and based on the determination result, the data receiving device The shared data requested for download from 3 is sent. Specifically, when the authentication information matches, the shared data requested to be downloaded is transmitted to the data transmission device 1.
  • the authentication information is transmitted to the data receiving device 3 using the telephone line 4.
  • the telephone line 4 is a safe line with little fear of information leakage on the transmission line when sending and receiving information. Therefore, by transmitting the authentication information using the telephone line 4, it is possible to prevent the authentication information from leaking to other than the data receiving device 3.
  • the shared data when the shared data is transmitted to the data receiving device 3, in other words, when the data receiving device 3 downloads the shared data, it is transmitted from the data receiving device 3. After confirming the incoming authentication information, the shared data is downloaded. Therefore, the download of the shared data can be permitted only to the data receiving device 3 that has transmitted the authentication information. This makes it possible to reliably share information only between specific users.
  • the download request including the authentication information received from the data receiving device 3 and the shared data to be transmitted to the data receiving device 3 are transmitted and received in an encrypted state on the transmission path.
  • the authentication information and shared data are transmitted and received in an encrypted state on the transmission path.
  • the data receiving device 3 receives the identification information from the server 2.
  • the data receiving device 3 does not identify the data receiving device 3 for which sharing is set by the data transmitting device 1 or the server 2 in which the data receiving device 3 itself does not set the information sharing destination. Is sending. Therefore, the data transmitting device 1 or the server 2 can designate a sharing partner (data receiving device 3) that shares the shared data.
  • the server-side transmission information creation unit 25 transmits the authentication information differently for each data reception device 3 that should share the shared data.
  • the configuration is more preferred.
  • the authentication information is made different for each data receiving device 3, so that authentication can be performed in units of users.
  • the server 2 has a configuration in which the management table management unit 45 manages the shared device information received from the data transmission device 1 and the shared data in association with each other. More preferred!
  • the management table management unit 45 manages the shared device information and the shared data received from the data transmission device 1 in association with each other. That is, the management table management unit 45 can transmit the authentication information to the device (data receiving device 3) that should share the shared data based on the shared device information set by the data transmitting device 1. .
  • the operator of the data transmission device 1 can share the shared data with the desired sharing destination (data receiving device 3).
  • the server 2 is more preferably configured to have a communication line power wireless LAN line 5 other than the telephone line 4 described above.
  • the wireless LAN line 5 generally has a higher communication speed than the telephone line 4, but has a narrow range of information. Therefore, according to the above configuration, the identification information is transmitted via the telephone line 4, and the shared data itself is transmitted via the wireless LAN line 5. As a result, the data receiving device 3 can always know whether or not there is identification information, and the shared data can be efficiently received by using the wireless LAN line 5 to acquire the actual shared data. And can quickly know whether the shared data exists.
  • Data receiving device 3 receives data from server 2 storing shared data, which is information to be shared among a plurality of devices, in order to solve the above problem.
  • a receiving device 3 that receives identification information for specifying the shared data and authentication information for downloading the shared data from the server 2 from the server 2 via the telephone line 4.
  • a receiving side information creation unit that transmits a download request for downloading the shared data and the authentication information to the server 2 using a wireless LAN line having a higher communication speed than the telephone line 4. It is more preferable to include a wireless communication unit 34 that receives the shared data specified by the identification information 33 from the server 2 via the wireless LAN line 5.
  • the identification information is information for specifying the shared data. Specifically, the identifier (name) of the shared data or the shared data is stored! The information indicating the position corresponds to the identification information. The identification information has a smaller information amount than the shared data. According to the above configuration, the identification information is received from the server 2 using the telephone line 4. Therefore, even a telephone line 4 with a generally low communication speed can be received.
  • authentication information for acquiring shared data is received from the server 2, and when acquiring shared data, the authentication information is transmitted to the server 2. Thereby, for example, it is possible to prevent a third party who does not know the authentication information from acquiring the shared data.
  • the data receiving device 3 receives the identification information from the server 2. Thereby, the existence of shared data can be known. That is, since the data receiving device 3 receives the identification information when the shared data exists in the server 2, the data receiving device 3 asks the server 2 whether or not the shared data has power. There is no need to match.
  • the shared data is received using a wireless LAN line having a higher communication speed than the telephone line 4. Since the wireless LAN line has a higher communication speed than the telephone line 4, for example, even shared data with a large amount of information can be received well.
  • sharing is performed using authentication information transmitted from server 2. Since the data is acquired (received), other devices that do not have the authentication information cannot acquire the shared data.
  • the data reception device 3 is more preferably configured so that the reception-side wireless LAN communication unit 34 receives the shared data in an encrypted state.
  • the shared data may be transmitted using a communication protocol such as secure http V, and an encryption key is used.
  • the encrypted shared data may be received from the server 2 and a decryption key for decrypting the encrypted shared data may be acquired from the server 2 via the telephone line 4.
  • the authentication information may be the decryption key.
  • the data transmission device 1 is a data transmission device 1 that transmits shared data shared among a plurality of devices to the server 2.
  • Authentication information receiving means for receiving authentication information for accessing the server 2 from the server 2 via the telephone line 4, and shared data with the authentication information for the server 2 from the telephone line 4
  • the transmission speed is high, and the transmission information generation unit transmits the data using a wireless LAN line.
  • authentication information is received using the telephone line 4, so the data transmitting device 1 can receive the authentication information safely and reliably.
  • the shared data is transmitted using a wireless LAN line having a communication speed faster than that of the telephone line 4. For example, even large-capacity data can be transmitted at high speed. I can do it.
  • the wireless LAN line may be the same as the wireless LAN line that transmits shared data from the server 2 to the data receiving device 3, or may be different! /.
  • the data transmission device 1 transmits the transmission side information transmission that transmits the shared device information regarding the device sharing the shared data to the server 2 using the telephone line 4 or the wireless LAN line.
  • a configuration including the part 10 is more preferable.
  • the data transmission device 1 can specify the device that shares data.
  • the shared device information may be, for example, an address or identification information (ID) of a device that shares the shared data, and is set in advance to share the shared data with a specific device. It may be a folder name that specifies the data folder.
  • the transmission side information transmission unit 10 transmits the shared data identifier and the shared device information to the server 2. .
  • the shared device information and the identifier of the shared data are transmitted to the server 2, so that sharing can be set in units of shared data.
  • the data transmission device 1 When the transmission information creation unit transmits the shared data with the authentication information, the data transmission device 1 according to the present embodiment provides the shared device information regarding the device that should share the shared data. More preferred, the configuration is what is sent.
  • the data sharing system is configured to include the data transmitting device 1, the server 2, and the data receiving device 3 in order to solve the above-described problems. .
  • the communication line for transmitting and receiving the shared data is not limited to the wireless LAN.
  • a LAN line, a Bluetooth (registered trademark) line, or the like may be used as the communication line.
  • the shared data is encrypted and transmitted so as to be encrypted on the transmission path.
  • the configuration in which the shared data transmitted from the data transmitting device 1 is stored in the shared data storage unit 40 of the server 2 is described.
  • share day Is not limited to the shared data storage unit 40 of the server 2.
  • the shared data is stored in a device different from the server 2, and the management table storage unit 41 of the server 2 stores information related to the storage source of the shared data, so that the management table management unit 45 Can acquire the shared data. Therefore, the shared data storage unit 40 need not be in the server 2.
  • the data transmission device 1 and the data reception device 3 having both the wireless LAN line 5 and the telephone line 4 are described.
  • the data transmission device 1 and the data reception device 3 may be configured by connecting a possible device and a device capable of communication via the telephone line 4.
  • FIG. 8 is a drawing showing another configuration of the data receiving device 3.
  • the data receiving device 3 is composed of a mobile terminal and a personal computer. More specifically, on a mobile device
  • the configuration of the data receiving device 3 is not limited to the configuration in which only one housing has a force.
  • a folder capable of storing a plurality of shared data may be created in the shared data storage unit 40 of the server 2, and authentication information and password may be set for each folder. Also, authentication information and password may be set for each shared data unit. For example, when setting authentication information and a password for each folder, when the data transmission apparatus 1 registers a folder for storing shared data, the sharing destination of the folder is set. Specifically, the server 2 may create a folder when receiving shared device information from the data transmitting device 1. Then, the server 2 that created the folder may transmit authentication information or a password for accessing the folder to the share destination of the folder using the telephone line 4.
  • the information shown in FIG. 9 may be transmitted to the server 2 or received from the server 2.
  • information to be transmitted to the server 2 at the time of data registration information to be transmitted to the server 2 at the time of data deletion, information to be transmitted to the server 2 at the time of data browsing, and a terminal (data receiving device 3
  • the wireless LAN line 5 is used to transmit and receive information sent to the server 2 and shared data received from the server 2 in order to send the shared data to).
  • the telephone line 4 is used to send and receive information.
  • the data transmission device 1 transmits the encryption key for encrypting and transmitting the information and the storage location of the information in the server 2 via the telephone line 4.
  • An encryption key receiving means for receiving from the server 2, and an encryption means for encrypting the information to be transmitted to the server 2 using the encryption key acquired by the encryption key receiving means;
  • Encryption information transmission means for transmitting the encrypted information encrypted by the encryption means to a storage location of information in the server 2 using a wireless LAN line different from the telephone line 4;
  • the data transmission device 1 transmits information to the server 2 (data storage device), and uses the telephone line 4 to share the information with the server 2.
  • an information transmission / reception means for receiving an encryption key for transmitting the information encrypted from the server 2 to the server 2 and a storage location of the information in the server 2, and an authentication communication means.
  • the encryption means for encrypting the information to be transmitted to the server 2 and the encrypted information encrypted by the encryption means are separated from the telephone line 4 by a wireless LAN. It may be configured to include an encryption information transmission means for transmitting to the server 2 using a line.
  • the encryption information received from the server 2 and encrypted using the encryption key is encrypted with respect to the information storage location in the server 2. It is transmitted using a wireless LAN line different from the telephone line 4 that received the activation key.
  • the encryption information is used by using a higher-speed communication line (here, a wireless LAN line).
  • a higher-speed communication line here, a wireless LAN line.
  • the communication line in this case, the telephone line 4
  • the other communication line transmits encrypted encryption information, so the other line is not highly secure. Information leakage can be prevented even when communication lines are used.
  • a portable terminal when used as the data transmission device 1, an encryption key is received using the telephone line 4, and a high-speed communication line such as a wireless LAN (W-LAN, wireless LAN) or Bluetooth is used. It is possible to transmit encrypted key information encrypted by using the key.
  • a high-speed communication line such as a wireless LAN (W-LAN, wireless LAN) or Bluetooth. It is possible to transmit encrypted key information encrypted by using the key.
  • the encryption key can be received easily and reliably without any other leakage of the encryption key. Since the encrypted encrypted information can be transmitted to the server 2 using a high-speed communication line, a large amount of information can be transmitted.
  • the data transmission device 1 when the data transmission device 1 is a portable terminal, information can be safely transmitted to the server 2 using a high-speed communication line that is not conscious of security.
  • the data transmission device 1 preferably has a configuration in which the wireless LAN line has a higher transmission speed than the telephone line 4.
  • the data transmission device 1 preferably has a configuration in which the telephone line 4 has higher safety than the wireless LAN line.
  • the data transmission device 1 includes determination means for determining whether or not information can be transmitted and received through a wireless LAN line
  • the encrypted information transmission means includes: When it is determined that information can be transmitted and received, a configuration in which the encrypted information is transmitted to the server 2 is more preferable.
  • the communication line is, for example, a wireless LAN (W-LAN, wireless LAN), Bluetooth, or the like, places where information is transmitted to and received from the server 2 are limited compared to the telephone line 4 or the like.
  • the encryption key information is transmitted to the server 2 when data can be transmitted and received through the wireless LAN line, so that the encryption key information can be transmitted reliably.
  • the server 2 that is involved in the present embodiment receives information from the data transmission device 1.
  • the received information is transmitted to the data receiving device 3 that shares the information.
  • the server 2 is an encryption key for encrypting and transmitting the information when the data transmission device 1 transmits the information, and the information in the own device for storing the encrypted encryption information.
  • the encryption key transmitting means for transmitting the storage location of the data to the data transmitting device 1 using the telephone line 4, and the encryption information from the data transmitting device 1 to be different from the telephone line 4.
  • Encrypted information receiving means for receiving the information via the wireless LAN line and storing the information in the storage location of the device itself, and a decryption device for decrypting the encrypted information encrypted with the encryption key.
  • the data receiving device 3 is a data receiving device 3 that receives the encrypted encryption key information from the server 2 and decrypts the encrypted information.
  • the receiving side encrypted information receiving means for receiving the encrypted key information encrypted from the server 2 via the telephone line 4 and the wireless LAN line different from the telephone line 4
  • a configuration comprising: a decryption key receiving means for receiving a decryption key for decrypting the encrypted information from the server 2; and a decryption means for decrypting the encrypted information using the received decryption key. Even so.
  • the program code stored in the recording medium such as the ROM or RAM in which each of the members constituting the data transmitting device 1, the data receiving device 3, and the server 2 is calculated.
  • the function block realized by executing “is executed” has been described as an example. However, it may be realized by hardware that performs similar processing. It can also be realized by combining hardware that performs a part of the processing and the above-described arithmetic means that executes a program code that performs control of the hardware and residual processing.
  • the members described as hardware even the members described as hardware, the hardware for performing a part of the processing, and the arithmetic means for executing the program code for controlling the hardware and the remaining processing It can also be realized by combining.
  • the calculation means is a single unit.
  • the program code may be executed jointly by a plurality of arithmetic means connected via a bus or various communication paths inside the apparatus.
  • the storage unit among the above members may be a storage device itself such as a memory! /.
  • the program code itself that can be directly executed by the arithmetic means, or a program as data that can generate a program code by a process such as decompression described later, is stored in the recording medium. And the recording medium is distributed, or the program is transmitted by a communication means for transmitting via a wired or wireless communication path, and is executed by the arithmetic means.
  • each transmission medium constituting the communication path propagates a signal sequence indicating a program, whereby the program is transmitted via the communication path.
  • the transmission device may superimpose the signal sequence on the carrier by modulating the carrier with the signal sequence indicating the program. In this case, the signal sequence is restored by the receiving apparatus demodulating the carrier wave.
  • the transmission device may divide the signal sequence as a digital data sequence and transmit it. In this case, the receiving apparatus concatenates the received packet groups and restores the signal sequence.
  • the transmission device may multiplex and transmit the signal sequence with another signal sequence by a method such as time division Z frequency division Z code division.
  • the receiving apparatus extracts and restores individual signal sequences from the multiplexed signal sequence. In either case, the same effect can be obtained if the program can be transmitted via the communication channel.
  • the recording medium for distributing the program is removable, but it does not matter whether the recording medium after distributing the program is removable.
  • the recording medium may be rewritten (written), volatile, recording method, and shape as long as a program is stored.
  • Examples of recording media include magnetic tapes, force set tapes, etc., floppy disks (registered trademark), magnetic disks, such as node disks, CD-ROMs, magneto-optical disks (MO), and mini disks (MD). And digital video disc (DVD) discs.
  • the recording medium may be a card such as an IC card or an optical card, or a semiconductor memory such as a mask ROM, EPROM, EEPROM, or flash ROM. Or CPU etc. It may be a memory formed in the computing means.
  • the program code may be a code for instructing the arithmetic means of all procedures of the processes, or may be executed by a predetermined procedure to execute a part or all of the processes. If a possible basic program (for example, operating system or library) already exists, replace all or part of the above procedure with code or pointers that instruct the arithmetic means to call the basic program.
  • a possible basic program for example, operating system or library
  • the format for storing the program in the recording medium may be a storage format that can be accessed and executed by the arithmetic means, for example, in a state where the program is stored in the real memory. From the storage format after installation on a local recording medium that is always accessible by the computing means (for example, real memory or a node disk) before being placed in the memory, or from a network or transportable recording medium. It may be the storage format before installing on a local recording medium.
  • the program may be stored as source code that is not limited to the object code after con- taining, or as intermediate code generated during interpretation or compilation.
  • the above calculation is performed by a process such as decompression of compressed information, decoding of encoded information, interpretation, compilation, linking, allocation to real memory, or a combination of processes. If the means can be converted into an executable format, the same effect can be obtained regardless of the format in which the program is stored in the recording medium.
  • the data transmitter 1, the data receiver 3, and the server 2 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network.
  • This communication network is not particularly limited.
  • the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite A communication network or the like is available.
  • the transmission medium constituting the communication network is not particularly limited.
  • IEEE1394, USB, power line carrier, cable TV line, telephone line, ADSL line, etc. can be used for infrared communication such as IrDA or remote control, Bluetooth. 802.11 wireless, HDR, mobile phone network, satellite circuit, terrestrial digital network, etc. can also be used.
  • the present invention relates to computer data embedded in a carrier wave, in which the program code is embodied by electronic transmission. It can also be realized in the form of a signal.
  • means does not necessarily mean physical means, but also includes cases where the functions of each means are realized by software. Further, the function of one means may be realized by two or more physical means, or the functions of two or more means may be realized by one physical means.
  • the server according to the present invention preferably has a configuration in which the identification information transmitting unit transmits the authentication information differently for each data receiving device that should share shared data.
  • authentication information is made different for each data receiving apparatus, so that authentication can be performed in units of users.
  • the server according to the present invention has a configuration in which the management unit manages the shared device information and the shared data received from the data transmission device in association with each other.
  • the management means manages the shared device information received from the data transmitting device in association with the shared data. That is, the management means can transmit authentication information to a device (data receiving device) that should share shared data based on the shared device information set by the data transmitting device.
  • the operator of the data transmission device can share the desired destination (data reception device).
  • the server according to the present invention is more preferably configured as the communication line (A) power wireless LAN line.
  • the wireless LAN line has a higher communication speed than a telephone line, but the range in which information can be acquired is narrow. Therefore, according to the above configuration, the shared data identification information is transmitted via the telephone line, and the shared data itself is transmitted via the wireless LAN line. As a result, the data receiving device can always know whether or not the shared data identification information has power, and the shared data can be efficiently obtained by using the wireless LAN line to acquire the actual shared data. In addition to being able to receive, it is possible to quickly know whether shared data exists.
  • the shared data receiving means includes the shared data. It is more preferable to receive data in encrypted state.
  • the shared data may be transmitted using a communication protocol such as secure http V, and an encryption key is used.
  • the encrypted shared data may be received from Sano and a decryption key for decrypting the encrypted shared data may be obtained from Sano via the telephone line. Further, the authentication information may be the decryption key.
  • the data transmitting apparatus has a configuration including a shared apparatus information transmitting unit that transmits shared apparatus information related to an apparatus that shares the shared data to a server using a telephone line or a communication line (B). More preferred.
  • the data transmitting apparatus can specify the apparatus that shares data.
  • the shared device information is, for example, set to share the shared data with a specific device in advance, which may be the address or identification information (ID) of the device that shares the shared data. It may be a folder name that specifies the data folder.
  • the shared apparatus information transmitting means transmits the shared data identifier and the shared apparatus information to the server.
  • the apparatus side shared data transmitting means when the apparatus side shared data transmitting means transmits the shared data with the authentication information, the shared apparatus information regarding the apparatus to which the shared data should be shared. A configuration that transmits data is more preferable.
  • the shared data system according to the present invention is suitable for mobile terminals having two communication lines, for example, a telephone line and a wireless LAN line.

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Abstract

Système de partage de données comprenant : une unité de stockage de données partagées (40) pour stocker des données partagées, partagées entre une pluralité de dispositifs, transmises à partir d’un dispositif de transmission de données (1) ; une unité de gestion de tables de gestion (45) pour corréler les données partagées à des informations de dispositif partagé et les gérer ; une unité de génération d’informations de transmission du côté serveur (25) qui transmet, dès réception des données partagées, l’identifiant et l’authentifiant de données partagées à un dispositif de réception de données (3) pour partager les données partagées selon les informations de dispositif partagé en utilisant une ligne téléphonique (4) ; une unité d’appréciation de mot de passe (43) pour apprécier si l’authentifiant reçu du dispositif de réception de données (3) par l’intermédiaire d’une ligne LAN radio ayant une vitesse de communication supérieure à la ligne téléphonique (4) coïncide avec l’authentifiant transmis à partir du dispositif local ; et une unité de gestion du côté réception (47) pour transmettre, si l’appréciation de l’unité d’appréciation de mot de passe (43) aboutit à la coïncidence, les données partagées au dispositif de réception de données (3) par l’intermédiaire de la ligne LAN radio. Ainsi, il est possible de réaliser un système de partage de données selon lequel des informations peuvent être partagées de façon sûre seulement entre des utilisateurs particuliers.
PCT/JP2005/015364 2004-08-31 2005-08-24 Dispositif de transmission de donnees, dispositif de reception de donnees, serveur, systeme de partage de donnees, programme de transmission de donnees, programme de reception de donnees, programme de partage de donnees et support d’enregistrement lisible par un ordinateur WO2006025241A1 (fr)

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JP2018166301A (ja) * 2017-03-28 2018-10-25 富士ゼロックス株式会社 情報処理装置及び情報処理プログラム
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