Backup System, Relay Device, Information Terminal, and Backup Device
First Claim
1. A backup system that transfers data transmitted by an information terminal device to a backup device via at least one relay device that relays the data,the information terminal device comprising:
- a storing unit operable to store the data to be backed up; and
a communication unit operable to transmit, to the relay device, the data and transfer condition information that indicates a condition to be satisfied by the relay device and relates to protection of the data,the relay device comprising;
a device information storing unit operable to store device information relating to transfer destination devices;
a receiving unit operable to receive the data and the transfer condition information; and
a transfer control unit operable to select, from the transfer destination devices, a transfer destination device that satisfies the condition indicated by the received transfer condition information, and to control transfer of the received data in accordance with the selection, andthe backup device comprising;
a backup data receiving unit operable to receive the data transferred by the relay device; and
a backup data storing unit operable to store the received data.
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Accused Products
Abstract
To allow a user to easily back up data without anxiety, the present invention provides a backup system that transfers data transmitted by an information terminal device to a backup device via at least one relay device that relays the data, the information terminal device comprising: a storing unit operable to store the data to be backed up; and a communication unit operable to transmit, to the relay device, the data and transfer condition information that indicates a condition to be satisfied by the relay device and relates to protection of the data, the relay device comprising: a device information storing unit operable to store device information relating to transfer destination devices; a receiving unit operable to receive the data and the transfer condition information; and a transfer control unit operable to select, from the transfer destination devices, a transfer destination device that satisfies the condition indicated by the received transfer condition information, and to control transfer of the received data in accordance with the selection, and the backup device comprising: a backup data receiving unit operable to receive the data transferred by the relay device; and a backup data storing unit operable to store the received data.
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Citations
20 Claims
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1. A backup system that transfers data transmitted by an information terminal device to a backup device via at least one relay device that relays the data,
the information terminal device comprising: -
a storing unit operable to store the data to be backed up; and a communication unit operable to transmit, to the relay device, the data and transfer condition information that indicates a condition to be satisfied by the relay device and relates to protection of the data, the relay device comprising; a device information storing unit operable to store device information relating to transfer destination devices; a receiving unit operable to receive the data and the transfer condition information; and a transfer control unit operable to select, from the transfer destination devices, a transfer destination device that satisfies the condition indicated by the received transfer condition information, and to control transfer of the received data in accordance with the selection, and the backup device comprising; a backup data receiving unit operable to receive the data transferred by the relay device; and a backup data storing unit operable to store the received data.
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2. A relay device that relays data transmitted by an information terminal device to a backup device, comprising:
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a device information storing unit that stores device information relating to devices as candidates for a transfer destination of the data; a receiving unit operable to receive the data and transfer condition information that indicates a condition to be satisfied by the relay device and relates to protection of the data; and a transfer control unit operable to select, from the candidates, a device that satisfies the condition indicated by the received transfer condition information, and to control transfer of the received data in accordance with the selection. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 16)
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10. An information terminal device that transmits data to a backup device via at least one relay device that relays the data, the information terminal device comprising:
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a storing unit operable to store the data to be backed up; and a communication unit operable to transmit, to the relay device, the data and transfer condition information that indicates a condition to be satisfied by the relay device and relates to protection of the data. - View Dependent Claims (11, 12, 13, 14, 15)
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17. An integrated circuit used for an information terminal device that transmits data to a backup device via at least one relay device that relays the data, the integrated circuit comprising:
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a storing unit operable to store the data to be backed up; and a communication unit operable to transmit the data and transfer condition information that indicates a condition to be satisfied by the relay device and relates to protection of the data.
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18. A computer program for instructing an information terminal device that stores data to be backed up to transmit the data to a backup device via at least one relay device that relays the data, the computer program comprising the step of
transmitting the data and transfer condition information that indicates a condition to be satisfied by the relay device and relates to protection of the data.
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19. A backup method for transferring data transmitted by an information terminal device to a backup device via at least one relay device that relays the data, the backup method comprising:
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the steps performed by the information terminal device of storing the data to be backed up, and transmitting, to the relay device, the data and transfer condition information that indicates a condition to be satisfied by the relay device and relates to protection of the data; the steps performed by the relay device of storing device information relating to devices as candidates for a transfer destination of the data, receiving the data and transfer the condition information, and selecting, from the candidates, a device that satisfies the condition indicated by the received transfer condition information, and controlling the transfer of the received data in accordance with the selection; and the steps performed by the backup device of receiving the data transferred by the relay device; and storing the received data.
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20. A backup method for backing up data with use of a first information terminal device and a second information terminal device, the backup method comprising:
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a storing step of storing the data to be backed up; and a communication step of transmitting the data and transfer condition information that indicates a condition to be satisfied by the relay device and relates to protection of the data, wherein when performed by the first information terminal device, the communication step further transmits first transmission/reception condition information to the second information terminal device and receives second transmission/reception condition information from the second information terminal device, before transmitting first data to the second information terminal device, and when performed by the second information terminal device, the communication step further transmits the second transmission/reception condition information to the first information terminal device and receives the first transmission/reception condition information from the first information terminal device, before transmitting the second data to the first information terminal device, wherein the backup method further comprises a judging step of judging whether the first transmission/reception condition information and the second transmission/reception condition information are substantially the same, wherein when performed by the first information terminal device, the communication step further transmits the first data to the second information terminal device if the judging step judges affirmatively, and when performed by the second information terminal device, the communication step further transmits the second data to the first information terminal device.
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Specification