Patent ID: 7177936
Filing Date: 2007-02-13
Classification: H04L,H04N

Abstract:
1. A data processing apparatus comprising: a reception unit for receiving data designated to a plurality of receivers, from a transmission side; a notification unit for notifying the plurality of receivers that said reception unit received the data; a transmission unit for transmitting information representing a notification result by said notification unit, to the transmission side from which the data received by said reception unit was transmitted; a selection unit for selecting one of a first mode and a second mode; and a determining unit for determining whether a predetermined time has been reached or not, wherein said transmission unit, in the first mode, transmits one by one information representing the notification results corresponding to each of receivers by said notification unit regardless of a determination by said determining unit, and in the second mode, transmits collectively the information representing the notification results for the receivers by said notification unit at the time when said determining unit determines that the predetermined time has been reached.