Patent ID: 6922213
Filing Date: 2005-07-26
Classification: H04N

Abstract:
1. A transport stream decoder receiving a plurality of different transport streams to extract a selected transport stream, comprising: a synchronizing portion receiving said plurality of different transport streams and a plurality of input clocks corresponding to said plurality of different transport streams respectively, to establish synchronization between said transport streams and said input clocks; a matching portion to match an output of said synchronizing portion with an internal clock having a frequency higher than a frequency of said plurality of input clocks, based on said plurality of input clocks and said internal clock; a storing portion to store a plurality of transport stream signals corresponding to said plurality of different transport streams output from said matching portion, respectively; a time-division multiplexing portion receiving an output of said storing portion, to convert said plurality of transport stream signals into a time-division multiplexing signal synchronizing with said internal clock, and to generate an identification signal indicating which one of said plurality of different transport streams is associated with said time-division multiplexing signal; and a filtering portion to extract a signal corresponding to the selected transport stream of said plurality of different transport streams, based on an output of said time-division multiplexing portion; said filtering portion comprising: