Patent ID: 7848365
Filing Date: 2010-12-07
Classification: H04N

Abstract:
1. A multiplexing unit for an apparatus of receiving a cable broadcasting program, the multiplexer comprising: a transport stream (TS) receiving means for transforming broadcasting stream of channels selected by a viewer to a data block of a predetermined type TS packet by synchronizing at a required operating clock; a packet identifier (PID) filtering means for receiving the predetermined type TS packet data outputted from the TS receiving means, analyzing information in a packet identifier (PID) field in a header of the predetermined type TS packet, outputting packets of programs selected by a viewer and dumping remained packets; a pre-header generating means for adding a predetermined side of a pre-header to the TS packets passed through the PID filtering means to create a predetermined size of a packet; a local time stamp generating means for generating a time stamp value required for a location time stamp field (LTS) of the pre-header generating means; an outputting means for receiving the predetermined size of the packets outputted from the pre-header generating means and outputting the received packets in a first-in first-out (FIFO) fashion; and an output controlling means for controlling the outputting means to output packets from crashing into one another.