
14-1-1 Transport stream
There are two kinds of multiplexing.The one is multiplexed program called PS(Program
Stream),which improved MPEG-1 system.
The another TS(Transport Stream) is multiplexed program in channel environment with error.
It is adequatable Digital Broadcast TV due to multiplexing multi program with one bit stream.
and add PPV(Pay Per View)functions to STB embedded CAS(Conditional Access System) program.
14-1-2 Demultiplex
Digital set-top boxes and digital TVs may require multiple program stream inputs,for example
cable/terrestrial/satellite TV.The transport stream multiplexor(TSMUX) is designed to route two input
transport streams independently to the on-chip PTI.
The TSMUX also supports input from an internal transport stream(software writable transport
stream)and allows the PTI output to be multiplexed to an output stream.
The multiplex is routed between a 1394 AV link layer interface and a 1284 controller interface.
14-1-3 MPEG
MPEG (pronounced M-peg), which stands for Moving Picture Experts Group, is the name of family of
standards used for coding audio-visual information (e.g., movies, video, music) in a digital compressed
format. The major advantage of MPEG compared to other video and audio coding formats is that
MPEG files are much smaller for the same quality. This is because MPEG uses very sophisticated
compression techniques.
MPEG is an encoding and compression system for digital multimedia content defined by the Moving
Picture Experts Group(MPEG). MPEG-2 extends the basic MPEG system to provide compression
support for TV quality transmission of digital video. To understand why video compression is so
important, one has to consider the vast bandwidth required to transmit uncompressed digital TV
pictures.
Phase Alternate Line (PAL) is the analogue TV transmission standard used in the UK, and
throughout many parts of the world. A uncompressed PAL TV picture requires a massive 216 Mbps,
far beyond the capacity of most radio frequency links. The U.S. uses an analogue TV system called
NTSC. This system provides less precise colour information, and a different frame rate. An
uncompressed NTSC signal requires slightly less transmission capacity at 168 Mbps.
The situation becomes much more acute, when one realises that high definition TV is just around the
corner. A High Definition TV (HDTV) picture requires a raw bandwidth exceeding 1 Gbps (1000
Mbps).
Samsung Electronics
14-1
14.
Reference Information
14-1 Technical Overview
Summary of Contents for DSB-S300G
Page 13: ...3 2 Software Update Samsung Electronics MEMO ...
Page 19: ...4 6 Disassembly and Reassembly Samsung Electronics MEMO ...
Page 30: ...Samsung Electronics 6 1 6 Exploded View and Parts List 6 1 Ass y Chassis 6 2 ...
Page 33: ...Exploded View and Parts List 6 4 Samsung Electronics MEMO ...
Page 46: ...9 1 9 Wiring Diagram Samsung Electronics ...
Page 47: ...Wiring Diagram 9 2 MEMO Samsung Electronics ...
Page 51: ...PCB Diagrams 10 4 Samsung Electronics CONDUCTOR SIDE ...
Page 52: ...PCB Diagrams 10 5 Samsung Electronics 10 2 Front PCB COMPONENT SIDE CONDUCTOR SIDE ...
Page 53: ...PCB Diagrams 10 6 Samsung Electronics 10 3 S M P S PCB COMPONENT SIDE ...
Page 54: ...PCB Diagrams 10 7 Samsung Electronics CONDUCTOR SIDE ...
Page 55: ...PCB Diagrams 10 8 Samsung Electronics MEMO ...
Page 69: ...Schematic Diagrams 11 14 Samsung Electronics MEMO ...
Page 70: ...Samsung Electronics 12 1 12 Operating Instructions ...
Page 71: ...Operating Instructions 12 2 Samsung Electronics ...
Page 72: ...Operating Instructions 12 3 Samsung Electronics ...
Page 73: ...Operating Instructions 12 4 Samsung Electronics ...
Page 74: ...Operating Instructions 12 5 Samsung Electronics ...
Page 75: ...Operating Instructions 12 6 Samsung Electronics ...
Page 97: ...Circuit Operating Descriptions 13 22 Samsung Electronics MEMO ...