Communication device, communication system, and content collection method

A communication device connected to a content-centric network comprising:

• a storage for accumulating contents;
• a receiver for receiving an interest to which search criteria set information including a search criteria set and search target ID information are added, the search target ID information identifying a search target and being an image of the search target;
• a transmitter for transmitting the content to a communication device of a content request source;
• and
• a controller configured to perform:
• a search process on the contents accumulated in the storage, aiming to find one or more contents which meet the search criteria set;
• and
• a matching process for verifying whether an image of the content found in the search process matches the image of the search target added to the interest to acquire a content including the image of the search target,
• wherein the controller is configure to, if the content including the image of the search target is acquired, cause the transmitter to transmit the content to the communication device of the content request source, otherwise cause the transmitter to transfer the interest received by the receiver to a different communication device.

A communication device connected to a content-centric network comprising:

• a storage for accumulating contents;
• a receiver for receiving an interest to which search criteria set information including a search criteria set and search target ID information are added, the search target ID information identifying a search target;
• a controller configured to perform:
• a search process on the contents accumulated in the storage, aiming to find one or more contents which meet the search criteria set;
• and
• a matching process for verifying whether the content found in the search process matches the search target ID information to acquire a content regarding the search target;
• and
• a transmitter for transmitting the content regarding the search target to a communication device of a content request source,
• wherein, in a case where the storage stores the content which meets the search criteria set and the controller performs the matching process on the content, the controller adds content associated information associated with the content to the interest, and then causes the transmitter to transmit the content to a different communication device.

A communication device connected to a content-centric network comprising:

• a storage for accumulating contents;
• a receiver for receiving an interest to which search criteria set information including a search criteria set and search target ID information are added, the search target ID information identifying a search target;
• a controller configured to perform:
• a search process on the contents accumulated in the storage, aiming to find one or more contents which meet the search criteria set;
• and
• a matching process for verifying whether the content found in the search process matches the search target added to the interest to acquire a content regarding the search target;
• and
• a transmitter for transmitting the content regarding the search target to a communication device of a content request source,
• wherein, even in a case where the storage stores the content which meets the search criteria set, the controller does not perform the matching process on the content, but causes the transmitter to transmit the content along with the interest to a different communication device.

A communication device connected to a content-centric network comprising:

• a controller configured to generate an interest to which search criteria set information including a search criteria set and search target ID information are added, the search target ID information identifying a search target and being an image of the search target;
• a transmitter for transmitting the interest to the content-centric network;
• and
• a receiver configured to communicate with a different communication device connected to the content-centric network, wherein the different communication performs a search process on contents stored in the different communication device, aiming to find one or more contents which meet the search criteria set, and a matching process for verifying whether an image of the content found in the search process matches the image of the search target added to the interest to acquire a content including the image of the search target, and wherein the receiver receives the acquired content including the image of the search target from the different communication device.

A communication system including a communication device and a content accumulating device, the devices being connected to a content-centric network,

• wherein the communication device comprises:
• a controller configured to generate an interest to which search criteria set information including a search criteria set and search target ID information are added, the search target ID information identifying a search target and being an image of the search target;
• a transmitter for transmitting the interest to the content-centric network;
• and
• a receiver for receiving a content including the image of the search target,
• wherein the content accumulating device comprises:
• a storage for accumulating contents;
• a receiver for receiving an interest to which the search criteria set information and the search target ID information are added, the search target ID information identifying a search target and being the image of the search target;
• a transmitter for transmitting the content to a communication device of a content request source;
• and
• a controller configured to perform:
• a search process on the contents accumulated in the storage, aiming to find one or more contents which meet the search criteria set;
• and
• a matching process for verifying whether an image of the content found in the search process matches the image of the search target included in the interest to acquire a content including the image of the search target,
• wherein the controller is configure to, if the content including the image of the search target is acquired, cause the transmitter to transmit the content to the communication device of the content request source, otherwise cause the transmitter to transfer the interest received by the receiver to a different communication device.

A content correction method for causing a communication device to collect a content regarding a search target from a content accumulator via a content-centric network, the method comprising:

• the communication device generating an interest to which search criteria set information including a search criteria set and search target ID information are added, the search target ID information identifying a search target and being an image of the search target, and transmitting the interest to the content-centric network;
• the content accumulator, upon receiving the interest including the image of the search target, performing a search process on contents accumulated therein, aiming to find one or more contents which meet the search criteria set, and performing a matching process for verifying whether an image of the content found in the search process matches the image of the search target added to the interest to acquire a content including the image of the search target;
• wherein if the content including the image of the search target is acquired, the content accumulator transmitting the acquired content to a communication device at a content request source, otherwise transferring the interest received by the receiver to a different communication device;
• and
• the communication device receiving the content including the image of the search target.