| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a network device which does not need to continue content confirmation of a content list of each device until the content is found if the content once moves to another network device. <P>SOLUTION: The network device is provided with: a moving additional information creation means which creates moving additional information regarding the content moving in a device of the moving source when the content is moved to a device of the moving destination; a control means which makes the device of the moving source create the moving additional information regarding the content movement to the device of the destination; and a means which creates an ID which uniformly specifies the content in a network using device authentication key exchange, and creates or updates the moving additional information. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
