Transcription of Set-Top Box 概述 - techmosa.com.tw
1 Set-Top Box FAE: Tony Lee STB(Set_Top Box: , ) STB STB System 1. ATSC: , 2. DVB: . 3. ISDB: DVB 4. : DMT-T or ADTB-T STB 1. STB(Tettestrial STB) 2. STB(Satellite STB) 3. STB(Cable STB) 4. IP STBSTB Block DiagramDigital TunerDigital ChannelTS DemuxMPEG-2A/V decoderTV EncoderCPUTS DemuxMPEG-2A/V decoderTV EncoderCPUY, CY, Cr, CbR, G, BIR / KeyDisplayNIMRS232RS232 Crystal27 MHzPOWER SYSTEMPOWER SYSTEM7 Segment7 SegmentEEPROMEEPROMSPDIFCA/CI SystemCA/CI SystemHDDA ntennaNIM(Network Interface Module) NIM: Tuner and Demode.
2 Tuner: ( ) (RF IF) Demode: Tuner FEC( ) CA (CA Conditional Access) CA CA MPEG-2 System CA MPEG-2 MPEG(Moving Picture Expert Group ) 1988 ISO/IEC MPEG-1 (Video CD MP3 ) MPEG-2 ( DVD ) MPEG-4 ( ) MPEG-7 ( ) MPEG-21 ( ) MPEG-2 System elementary stream Program Stream DVD Transport Stream MPEG-2 System BlockThe E
