| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a transmission source to analyze how many user devices can properly receive distribution information which the transmission source simultaneously distributes to the user devices in a specified area. <P>SOLUTION: A communication device includes a receiving portion which receives an instruction signal instructing to record specified distribution information, from a transmission source of the specified distribution information; a memory portion which holds the record about the specified distribution information when the receiving portion receives the specified distribution information simultaneously distributed from the transmission source; and a transmitting portion which transmits a notification signal indicating that the record about the specified distribution information is held to the transmission source. When the receiving portion receives a request signal transmitted by the transmission source in response to the notification signal, the transmitting portion transmits a report signal including at least an identifier for identifying the specified distribution information to the transmission source. <P>COPYRIGHT: (C)2013,JPO&INPIT |
