| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To simplify the user's operation for sending information to be attached to the distribution contents. <P>SOLUTION: When, for a picture distributed from a picture distributor 1 to a picture viewing unit 2, the viewing unit 2 sends attached information with a designated frame identifier fO of information-attaching target frames, a picture attached information manager 3 sets a wide attaching target range (sO, eO) about the attached information including the attaching target frames fO. Upon request of the attached information with a designated identifier fX of some frames from the picture viewing unit 2, it retrieves and provides the attached information including the frames of the identifier fX in its attaching target range. If not referring to the attached information within a specified period, it takes the fX as non-referred access frames and reduces the attaching target range (sO, eO) to (sO, fX-1) or (fX+1, eO) according to the size between fO and fX. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
