MPTS-SPTS SEPARATION APPARATUS FOR ALLOWING A SYSTEM OPERATOR OR AN OPTICAL NETWORK UNIT WITH A SMALL SIZE TO DIVIDE AN MPTS INTO A SPTS

摘要

PURPOSE: An MPTS(Multi-Program Transport Stream)-SPTS(Single Program Transport Stream) separation apparatus is provided to allow a system operator or an optical network unit with a small size to separate a SPTS from an MPTS without waste of unnecessary bandwidth and use of expensive broadcast equipment. CONSTITUTION: A receive interface part receives an MPEG(Motion Picture Experts Group)-2 MPTS that includes a plurality of programs supplied from a digital broadcast program provider. An MPTS-SPTS separation part(120) detects a PAT(Program Allocation Table) packet in MPEG-2 MPTS data supplied from the receive interface part. The MPTS-SPTS separation part analyzes a PID(Program ID) of a PMT(Program Map Table) corresponding to the programs, removes packets related to the programs except for one program selected by a user and deletes PIDs related to the programs except for one PID of the PMT related to the selected program in order to change the PAT. Thereafter, the MPTS-SPTS separation part inserts the changed PAT into a stream corresponding to the selected program. A transmit interface part transmits a SPTS outputted from the MPTS-SPTS separation part.