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Relay device

  • US 8,316,102 B2
  • Filed: 01/25/2011
  • Issued: 11/20/2012
  • Est. Priority Date: 01/21/2005
  • Status: Expired due to Fees
First Claim
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1. A backup system for backing up data from a first information terminal device by transferring the data to be backed up to a first backup device via at least a second information terminal device, the backup system comprising:

  • the first backup device;

    the first information terminal device; and

    the second information terminal device,wherein the first information terminal device includes;

    a storing unit operable to store the data to be backed up; and

    a communication unit operable to transmit, to the second information terminal device, the data to be backed up and transfer condition information (i) indicating a condition set by a user of the first information terminal device and to be satisfied by at least the second information terminal device that transfers the data to be backed up, and (ii) relating to a protection of the data to be backed up,wherein the second information terminal device includes;

    a device information storing unit including a physical memory storing device information, such that the device information stored in the physical memory is related to a plurality of candidate devices, and such that each of the plurality of candidate devices is a candidate for being a transfer destination of the data to be backed up;

    a receiving unit operable to receive, from the first information terminal device, the data to be backed up and the transfer condition information; and

    a transfer control unit operable to (i) select, from the plurality of candidate devices and as the first backup device, a device that satisfies the condition indicated by the received transfer condition information, and (ii) transfer the received data to be backed up in accordance with the selected first backup device, such that the transfer control unit transfers the received data to be backed up according to the condition set by the user of the first information terminal device, even when the first information terminal device is not able to directly write the data to be backed up into the first backup device,wherein the receiving unit of the second information terminal device further receives a transfer deadline and a deletion deadline,wherein, when the receiving unit of the second information terminal device receives the transfer deadline, the transfer control unit of the second information terminal device transfers the received data to be backed up, such that the first backup device receives the transferred data to be backed up before the transfer deadline,wherein, when the receiving unit of the second information terminal device receives the deletion deadline, the transfer control unit of the second information terminal device deletes the received data to be backed up at the deletion deadline, andwherein the first backup device is for backing up the data to be backed up and transferred from the first information terminal device via the second information terminal device and includes;

    a backup data receiving unit operable to receive the data to be backed up and transferred by the transfer control unit of the second information terminal device; and

    a backup data storing unit operable to store the received data to be backed up.

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