TRANSMISSION DEVICE, TRANSMISSION METHOD, RECEPTION DEVICE, AND RECEPTION METHOD

摘要

The present invention effectively enables clock synchronization and presentation synchronization in a case where media transmission packets obtained by fragmenting video, audio, or other media for transmission are transmitted via a broadcast signal. A 27 MHz clock synchronized with time information obtained from a time information server is generated. Time information that includes frequency information for the 27 MHz clock and is synchronized with the time information obtained from the time information server is generated. Media for transmission is encoded. The encoded media for transmission is fragmented into prescribed units, and media transmission packets including each fragment are generated. A stream including, in a time-division manner, the media transmission packets, packets having the time information, and packets having a control signal are transmitted via broadcast waves.