DIGITAL BROADCAST TRANSMISSION DEVICE AND METHOD THEREOF, DIGITAL BROADCAST RECEPTION DEVICE AND METHOD THEREOF

摘要

A content transmission management unit (16) assigns a transmission channel and a transmission timing to a content hierarchized according to the content attribute and a content as a program constituting component. According to the transmission channel and transmission timing assigned by the content transmission management unit (16), a content transmission unit (10) transmits a coded bit string of each content (101a to 101n) and a transmission bit string (105a to 105n) created by multiplexing timing information (102) such as content decoding timing information generated by a timing information generator (14), synthesis timing information, representation timing information, and reproduction start timing information.