Patent ID: 9210354
Filing Date: 2015-12-08
Classification: H04N

Abstract:
1. A reception apparatus comprising: a basic service reception unit to demodulate and channel-decode code a signal received through a first physical broadcasting channel among broadcasting channels for a basic service, to extract a transport stream provided for the basic service; an additional service reception unit to demodulate and channel-decode a signal received through a different broadcasting channel for an additional service combined with the basic service, and to extract a transport stream provided for the additional service; an integrated demultiplexer to respectively demultiplex the transport stream provided for the basic service and the transport stream provided for the additional service in order to extract at least one transport stream among the transport stream for the basic service, the transport stream for the additional service, and a transport stream for service information, the integrated demultiplexer synchronizing the transport stream for the basic service and the transport stream for the additional service using synchronization information included in the respective streams, the synchronization information including at least one of synchronized reference clock information and synchronized time stamp information for the basic service and for the additional service that was generated using the same system time clock; and a source decoder to respectively decode the demultiplexed transport stream provided for the basic service and the demultiplexed transport stream provided for the additional service in order to broadcast at least one of a basic source and an additional source combined with the basic source, wherein the integrated demultiplexer includes: a controller to control a system time clock so that a broadcast by the basic service demultiplexer and a broadcast by the additional service demultiplexer are performed at the same time, and wherein the controller includes: a system time clock correction unit to correct the system time clock with respect to a transport stream of a service delayed in transmission based on a comparison result of the PCR transport streams.