Patent ID: 6618396
Filing Date: 2003-09-09
Classification: H04L,H04N

Abstract:
A data transmitting device which obtains a frequency band having a maximum frequency band width permitted according to a condition of a network, and performs a transmission of data using the obtained frequency band during a transmission cycle period set up repeatedly, comprising:multiplexing means for receiving plural kinds of coded data, and multiplexing these coded data to generate a multiplexed coded stream having a predetermined data structure; dividing means for dividing the multiplexed coded stream into data units having a data size which is determined according to the frequency band width of the obtained frequency band and the length of transmission cycle period to generate divided pack data corresponding to divided packs as the data units; packet generating means for adding header information to respective divided pack data to generate packet data corresponding to packets as data transmission units; and transmitting means for performing transmitting process in which the respective packet data is output toward the network by using the obtained frequency band during the transmission cycle period, wherein the packets as data transmission units have a data size which is smaller than an amount of data that can be transmitted during one transmitting cycle period, the amount of data being determined according to the obtained frequency band.