Patent ID: 7864810
Filing Date: 2011-01-04
Classification: H04N

Abstract:
1. A display apparatus comprising: a demultiplexing unit which extracts program clock reference (PCR) information for synchronizing image information and voice information of a received image signal; a syntax analyzing unit which identifies a first packet identification number from a program management table (PMT) and a second packet identification number from a virtual channel table (VCT) of a packet having the PCR information so that the demultiplexing unit can extract the PCR information; and a controlling unit which determines whether the first packet identification number and the second packet identification number are different, and controls the syntax analyzing unit to set one of the first packet identification number and the second packet identification number that corresponds to the packet actually having the PCR information, in the demultiplexing unit when the first packet identification number and the second packet identification number are determined to be different.