COMMUNICATION METHOD, STORAGE APPARATUS, AND COMMUNICATION SYSTEM
First Claim
1. A communication method of a communication system including a user terminal connected to a first communication line, a device connected to the first communication line, and storing data to be updated, and a storage apparatus connected to a second communication line and storing the data transmitted from the device, a communication originated at the storage apparatus and addressed to the device and the user terminal being blocked by a firewall apparatus while a communication from the storage apparatus to the user terminal in reply to a request from the user terminal being permitted by the firewall apparatus, the communication method comprising:
- transmitting the data from the device to the storage apparatus via the first communication line and the second communication line;
receiving the data transmitted from the device and writing the received data on a storage unit;
placing a request via the first communication line and the second communication line to the storage apparatus to request the storage apparatus to transmit device information responsive to the data;
transmitting in reply to the request to the storage apparatus a transfer request to the user terminal having requested the device information, the transfer request including a data transmission request requesting the device to transmit the data to the storage apparatus, and a communication address assigned to the device, the transfer request requesting the user terminal to transfer the data transmission request to the device;
receiving the transmitted transfer request, and transferring the data transmission request included in the transfer request to the device having the communication address assigned thereto and included in the transfer request;
transmitting the data stored on the device to the storage apparatus if the data transmission request transferred from the user terminal is received;
placing a request again via the first communication line and the second communication line to the storage apparatus to request the storage apparatus to transmit the device information; and
transmitting to the user terminal having requested again the device information the device information responsive to the transmitted data in reply to the request.
2 Assignments
0 Petitions
Accused Products
Abstract
A communication system includes a user terminal connected to a first communication line, a device connected to the first communication line, and storing data to be updated, and a storage apparatus connected to a second communication line and storing the data transmitted from the device. A communication originated at the storage apparatus and addressed to the device and the user terminal is blocked by a firewall apparatus while a communication from the storage apparatus to the user terminal in reply to a request from the user terminal is permitted by the firewall apparatus.
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Citations
13 Claims
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1. A communication method of a communication system including a user terminal connected to a first communication line, a device connected to the first communication line, and storing data to be updated, and a storage apparatus connected to a second communication line and storing the data transmitted from the device, a communication originated at the storage apparatus and addressed to the device and the user terminal being blocked by a firewall apparatus while a communication from the storage apparatus to the user terminal in reply to a request from the user terminal being permitted by the firewall apparatus, the communication method comprising:
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transmitting the data from the device to the storage apparatus via the first communication line and the second communication line; receiving the data transmitted from the device and writing the received data on a storage unit; placing a request via the first communication line and the second communication line to the storage apparatus to request the storage apparatus to transmit device information responsive to the data; transmitting in reply to the request to the storage apparatus a transfer request to the user terminal having requested the device information, the transfer request including a data transmission request requesting the device to transmit the data to the storage apparatus, and a communication address assigned to the device, the transfer request requesting the user terminal to transfer the data transmission request to the device; receiving the transmitted transfer request, and transferring the data transmission request included in the transfer request to the device having the communication address assigned thereto and included in the transfer request; transmitting the data stored on the device to the storage apparatus if the data transmission request transferred from the user terminal is received; placing a request again via the first communication line and the second communication line to the storage apparatus to request the storage apparatus to transmit the device information; and transmitting to the user terminal having requested again the device information the device information responsive to the transmitted data in reply to the request.
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2. A storage apparatus in a communication system including a user terminal connected to a first communication line, a device connected to the first communication line, and storing data to be updated, and the storage apparatus connected to a second communication line and storing the data transmitted from the device,
the user terminal including a requesting unit and a transferring unit, the requesting unit requesting device information responsive to the data from the storage apparatus via the first communication line and the second communication line, the transferring unit receiving a transfer request transmitted from the storage apparatus, the transfer request including a data transmission request and a communication address assigned to the device, the transfer request requesting the user terminal to transfer the data transmission request to the device, the transferring unit transferring the data transmission request included in the transfer request to the device having the communication address assigned thereto and included in the transfer request, the device including a first storage unit connected to the first communication line and storing the data, a first transmitter unit transmitting the data stored on the first storage unit to the storage apparatus via the first communication line and the second communication line, and a second transmitter unit transmitting the data stored on the first storage unit to the storage apparatus if the data transmission request is received from the transferring unit, a communication originated at the storage apparatus and addressed to the device and the user terminal being blocked by a firewall apparatus connected to the first communication line and the second communication line while a communication from the storage apparatus to the user terminal in reply to a request from the user terminal being permitted by the firewall apparatus, the storage apparatus comprising: -
a writing unit that receives the data transmitted by the first transmitter unit of the device, and writes the received data on a second storage unit; a first request transmitter unit that transmits the transfer request to the user terminal requesting the device information via the requesting unit, in reply to the request to the storage apparatus, the transfer request including the data transmission request requesting the device to transmit the data to own storage apparatus, and the communication address assigned to the device; and a device information transmitter unit that receives the data transmitted by the second transmitter unit of the device, and transmits the device information responsive to the data to the user terminal in reply to a request if the user terminal having requested the device information places the request for the device information again. - View Dependent Claims (3, 4, 5)
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6. A communication system comprising a user terminal connected to a first communication line, a device connected to the first communication line, and storing data to be updated, and a storage apparatus connected to a second communication line and storing the data transmitted from the device, a communication originated at the storage apparatus and addressed to the device and the user terminal being blocked by a firewall apparatus connected to the first communication line and the second communication line while a communication from the storage apparatus to the user terminal in reply to a request from the user terminal being permitted by the firewall apparatus,
wherein the device includes a first storage unit connected to the first communication line and storing the data, a first transmitter unit transmitting the data stored on the first storage unit to the storage apparatus connected to the first communication line and the second communication line, and a second transmitter unit transmitting the data stored on the first storage unit to the storage apparatus if the data transmission request is transferred from the transferring unit; -
wherein the user terminal includes a requesting unit and a transferring unit, the requesting unit placing a request for device information responsive to the data to the storage apparatus via the first communication line and the second communication line, the transferring unit receiving a transfer request transmitted from the storage apparatus, the transfer request including a data transmission request and a communication address assigned to the device, the transfer request requesting the user terminal to transmit the data transmission request to the device, the transferring unit transferring the data transmission request included in the transfer request to the device having the communication address assigned thereto and included in the transfer request; and wherein the storage apparatus includes; a writing unit that receives the data transmitted by the first transmitter unit of the device, and writes the received data on a second storage unit; a first request transmitter unit that transmits the transfer request to the user terminal requesting the device information via the requesting unit, in reply to the request to the storage apparatus; and a device information transmitter unit that receives the data transmitted by the second transmitter unit of the device, and transmits the device information responsive to the data to the user terminal in reply to a request if the user terminal having requested the device information places the request for the device information again. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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Specification