Digital TV System Video Encoder Mux Audio Encoder ModulatorAmplifier Data Signal Source.
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Transcript of Digital TV System Video Encoder Mux Audio Encoder ModulatorAmplifier Data Signal Source.
Digital TV System
Video Encoder
MuxAudio Encoder Modulator Amplifier
Data
Signal Source
Spectrum Division Multidefinition and Multiprogram
HDTV
HDTV
(H264)
SDTV
LDTV
SDTV
SDTV
LDTV
Digital Television Standards
Modulação
Transporte
Video
Aúdio
Canal6Mhz 7Mhz 8Mhz
8-VSB COFDM COFDM-BST
MPEG2 – Fluxo de Transporte
MPEG2 MPEG4
280i LD 480iSDTV 720pEDTV 1080iHDTV
MPEG2-BC
MPEG2-AAC
DOLBYAC3
MPEG4-AAC
JAVA HTML
Middleware
DASE ARIB MHPMHEG
6Mhz 7Mhz 8Mhz
8-VSB COFDM COFDM-BST
MPEG2 – Fluxo de Transporte
MPEG2 MPEG4
280i LD 480iSDTV 720pEDTV 1080iHDTV
MPEG2-BC
MPEG2-AAC
DOLBYAC3
MPEG4-AAC
JAVA HTML
DASE ARIB MHPMHEG
6Mhz 7Mhz 8Mhz
8-VSB COFDM COFDM-BST
MPEG2 – Fluxo de Transporte
MPEG2 MPEG4
280i LD 480iSDTV 720pEDTV 1080iHDTV
MPEG2-BC
MPEG2-AAC
DOLBYAC3
MPEG4-AAC
JAVA HTML
DASE ARIB MHPMHEG
6Mhz 7Mhz 8Mhz
8-VSB COFDM COFDM-BST
MPEG2 – Fluxo de Transporte
MPEG2 MPEG4
280i LD 480iSDTV 720pEDTV 1080iHDTV
MPEG2-BC
MPEG2-AAC
DOLBYAC3
MPEG4-AAC
JAVA HTML
DASE ARIB FLEX-TV
Service Model
American
ATSC-TerrestrialAdvanced Television Standard Committee
European
DVB-TerrestrialDigital Vídeo Broadcast
Japanese
ISDB-TIntegrated Services Digital
Boradcast
Brazilian´s propose
SBTVDSistema Brasileiro de TV
Digital
Service Model
ServiceSouth Korea
USA Japan Finland Italy Nederland Australia
Transmition ATSC/T-DMB ATSC ISDB DVB-T/H DVB-T DVB-T/H DVB-T/H
Monoprogram HD HD and SD HD No No No HDMultiprogram NO SD SD SD SD SD SD
InteractivityLocal /
Return PathLocal
Local / Return Path
Local / Return Path
Local / Return Path
Local Local
Return Path ADSL No ADSL STFC STFC No NoMobility
PortabilityYes No Yes Yes testing Yes testing
IP over TSData
DataData DSMCCDSMCCIP EncapsulatorIP Encapsulator
DSMCCDSMCCIP EncapsulatorIP Encapsulator
Mux
Mux
EncoderEncoderVideoVideo
EncoderEncoderAudioAudio
DataData
Modulation and Modulation and TransmissionTransmission
Modulation and Modulation and TransmissionTransmission
Mux
Mux
IP over TS AV Program
EncoderEncoderVídeo Vídeo
EncoderEncoderAudioAudio
DataData
IPIPEncapsulatorEncapsulator
IPIPEncapsulatorEncapsulator
Mux
Mux
CodificadorCodificadorVídeo Vídeo
CodificadorCodificadorAudioAudio
Modulation and Modulation and TransmissionTransmission
Modulation and Modulation and TransmissionTransmission
Mux
Mux
EncoderEncoderVídeo Vídeo
EncoderEncoderAudioAudio
DataData
IPIPEncapsulatorEncapsulator
IPIPEncapsulatorEncapsulator
Mux
Mux
CodificadorCodificadorVídeo Vídeo
CodificadorCodificadorAudioAudio
Modulation and Modulation and TransmissionTransmission
Modulation and Modulation and TransmissionTransmission
Mux
Mux
EncoderEncoderVídeoVídeo
EncoderEncoderAudioAudio
DataData
IPIPEncapsulatorEncapsulator
IPIPEncapsulatorEncapsulator
Mux
Mux
CodificadorCodificadorVídeoVídeo
CodificadorCodificadorAudioAudio
DataData
Modulation and Modulation and TransmissionTransmission
Modulation and Modulation and TransmissionTransmission
Mux
Mux
Mux
Mux
IP over TS – AV ProgramDVB-H Example
MPEG-2 MPEG-2 TV TV
ServiceServiceMPEG-2 MPEG-2
TV TV ServiceService
Mux
Mux
DVB-HDVB-HIP EncapsulatorIP Encapsulator
DVB-HDVB-HIP EncapsulatorIP Encapsulator
MPEMPE MPE MPE FECFECMPE MPE FECFEC
Time Time SlicingSlicingTime Time
SlicingSlicing
Áudio e Vídeo Áudio e Vídeo
DVB-T ModulatorDVB-T ModulatorDVB-T ModulatorDVB-T Modulator
8K8K 4K4K4K4K 2K2K DVB-H TPSDVB-H TPSDVB-H TPSDVB-H TPS
AntennaAntennaMPEG-4 MPEG-4
AVC AVC MPEG-4 MPEG-4 AVC AVC
IPTV
• SBTVD is focused on free to air TV
Mux
Mux
EncoderEncoderVideoVideo
EncoderEncoderAudioAudio
DataData
IP EncapsulatorIP EncapsulatorIP EncapsulatorIP Encapsulator Internet