1-MINIMUM REQUIREMENT SPECIFICATIONS FOR DVB-T SET-TOP-BOXES RECEIVERS (STB) FOR SDTV

Transcription

1 1-MINIMUM REQUIREMENT SPECIFICATIONS FOR DVB-T SET-TOP-BOXES RECEIVERS (STB) FOR SDTV Standard definition television Terminology SHALL (mandatory): Denotes that the item is mandatory. SHOULD (recommended): Denotes that the item is not mandatory, but highly recommended. OPTION: Denotes that the item is not mandatory General RF part The receiver shall allow reception and demodulation of the DVB-T signal transmitted in accordance with EN [1]. Reception mode The receiver shall allow reception of the DVB-T signal in Single Frequency Networks (SFN) and Multi Frequency Networks (MFN) Frequency bands reception of all channels in UHF Mhz (Band IV-V with bandwidth 8 MHz) and reception of all channels in VHF MHz(Band III with bandwidth 7 MHz) Reception Transmission mode: 2k and 8k COFDM combinations and Modulation: QPSK, 16 QAM, 64QAM parameters Code rate: 1/2, 2/3, 3/4, 5/6, 7/8 Guard interval: 1/4, 1/8, 1/16, 1/32 Hierarchical mode: option Echoes The receiver shall allow reception of the DVB-T signal in environment with echoes according to EN [1] signal level and signal Within the user interface the receiver shall provide the information of signal level and signal quality. The quality implementation of user interface is responsibility of the producer Input connector The receiver shall have at least one tuner input connector in accordance with IEC , part 2 [2] The input impedance shall be 75 Ohm. Tuning/Scanning procedures The receiver shall, in case of same Transport stream Id and Service Id on two or more different frequencies save all frequencies, or select the frequency with better signal. The receiver shall be able to receive and react on tuning parameters in PSI/SI tables (e.g. SDT or NIT information). In addition to the automatic search, the receiver shall allow a manual search where Channel Id (or frequency) is entered by the end user. The receiver shall tune to this channel, search all available DVB-T modes, add new and replace existing in the service list (without considering any quality criteria). 1

2 SCART interface The receiver shall have at least one conventional SCART Interface Interfaces for Conditional Access RCA analog video output MPEG Demultiplexer MPEG VIDEO Decoder - As option The receiver should support at least one DVB Common Interface (for CA module) for conditional access. CI-slot should comply with EN50221 [19] As option the STB should provide output of analogue YPbPr video As option The receiver should have at least one analogue audio interface based on two RCA connectors The Demultiplexer shall be compliant to the MPEG-2 transport layer defined in ISO/IEC [5] and ETSI TS [3] and: - shall be able to decode an ISO/IEC [5] stream with data rates up to 32 Mbit/s, - shall support variable bitrate elementary streams within a constant bitrate transport stream. The decoder of receiver shall fully comply with standard ISO IEC [4] for decoding MPEG-4 AVC - The decoder shall also comply with ETSI TS [3] and shall support VBR and CBR. - The decoder of receiver shall ensure synchronization between AUDIO and VIDEO as follows: audio shall never lead the video program by more than 20 ms, and shall never lag the video by more than 45 ms - The decoder of receiver shall have processing elements for video format conversion to output the decoded video on its SCART or other analog interface (As option (in addition) : decoding of MPEG-2 coded signal according to ISO/IEC [17]) Decoding of SDTV Audio Decoder of SDTV The decoder of the receiver shall support profile H.264/MPEG4AVC Main Profile at Level 3 (used for MPEG4 H.264/AVC SDTV) and comply with ETSI TS [3] Format of SDTV: 4/3 and Resolution of SDTV: 720x576 (As option (in addition) the decoder of SDTV Level receiver should decode also MPEG-2 Main Profile@Main Level and comply with ETSI TS [3]) The receiver shall provide at least one stereo audio decoder that is able to meet minimum decoding requirements based on MPEG 1 Layer II ("Musicam" ISO/IEC ). Audio decoder shall support also MPEG4 HE AAC v1 and v2 ( high efficiency advanced audio coding) ( As option the decoder should support AC3) 2

3 Radio mode System software upgrade Service information Navigator (USER INTERFACE) Teletext Subtitling Interactivity Other standards supported as options Energy consumption The STB shall allow basic DVB-T RADIO reception and operation (switching between channels) without a TV screen. This can be done with a Radio/TV button on the front plate or on the remote control. In case of an alphanumeric display (optional) on STB the display should be large enough to accommodate the full length of the station name (up to 8 characters). The receiver shall provide at least one mechanism for upgrading system software The receiver shall have system software for interpretation and handling of the active service information and control of the local hardware/software according to EN [10] and ETSI TR [11]. The following tables are a mandatory set of tables the receiver shall be able to process: NIT, CAT, PAT, PMT, SDT, EIT, TDT, TOT The receiver shall offer basic functionality of EPG in order to present following: EIT actual (present/following/scheduled) EIT other (present/following/scheduled) -The navigator shall be presented in Frensh/English minimum languages and Arabic if available - Support of EPG The SDTV Level receiver shall offer at least the following options for presentation of Teletext: - By insertion of the Teletext data in the VBI of the analogue CVBS video output. Insertion shall conform to ITU-R BT [18] and to requirements for level 1.5 defined in ETS [22]; - and if available By presentation of Teletext within the navigator of the receiver - Support of Arabic language The receiver shall be capable of decoding and displaying DVB subtitle which are transmitted in conformance with ETSI EN [27] Interactivity middleware engine is optional and telecom return-channel with modem or equivalent is optional - DVB-S - IPTV - Internet applications If one or more or of these standards are supported, the necessary, front end, connections and interfaces should be implemented low 3

4 2-MINIMUM REQUIREMENT SPECIFICATIONS FOR DVB-T SET-TOP-BOXES RECEIVERS (STB) FOR SDTV Standard definition television AND HDTV High definition television Terminology SHALL (mandatory): Denotes that the item is mandatory. SHOULD (recommended): Denotes that the item is not mandatory, but highly recommended. OPTION: Denotes that the item is not mandatory General RF part The receiver shall allow reception and demodulation of the DVB-T signal transmitted in accordance with EN [1]. Reception mode The receiver shall allow reception of the DVB-T signal in Single Frequency Networks (SFN) and Multi Frequency Networks (MFN) Frequency bands reception of all channels in UHF Mhz (Band IV-V with bandwidth 8 MHz) and reception of all channels in VHF MHz(Band III with bandwidth 7 MHz) Reception Transmission mode: 2k and 8k COFDM combinations and Modulation: QPSK, 16 QAM, 64QAM parameters Code rate: ½, 2/3, ¾, 5/6, 7/8 Guard interval: ¼, 1/8, 1/16, 1/32 Hierarchical mode: option Echoes The receiver shall allow reception of the DVB-T signal in environment with echoes according to EN [1] signal level and signal Within the user interface the receiver shall provide the information of signal level and signal quality. The quality implementation of user interface is responsibility of the producer Input connector The receiver shall have at least one tuner input connector in accordance with IEC , part 2 [2] The input impedance shall be 75 Ohm. Tuning/Scanning procedures The receiver shall, in case of same Transport stream Id and Service Id on two or more different frequencies save all frequencies, or select the frequency with better signal. The receiver shall be able to receive and react on tuning parameters in PSI/SI tables (e.g. SDT or NIT information). In addition to the automatic search, the receiver shall allow a manual search where Channel Id (or frequency) is entered by the end user. The receiver shall tune to this channel, search all available DVB-T modes, add new and replace existing in the service list (without considering any quality criteria). 4

5 SCART interface Interfaces for Conditional Access (option) RCA analog video output The receiver shall have at least one conventional SCART Interface As option The receiver should support at least one DVB Common Interface (for CA module) for conditional access. CI-slot should comply with EN50221 [19] As option the STB should provide output of analogue YpbPr video As option The receiver should have at least one analogue audio interface based on two RCA connectors HDMI interface - The HDTV Level receiver shall have at least one High-Definition Multimedia Interface (HDMI) with type A connector[29] or equivalent, supporting displays that comply with the EICTA HD-Ready requirements [28] - It shall also be possible to manually set default output format from the HDTV Level STB to a fixed format. - Fixed format shall include at least the following formats: HD interlaced: 1920x1080i (25 Hz),1440x1080i (25 Hz), HD progressive : 1280x720p (50 Hz) - The HDMI output shall provide stereo or stereo downmix or multichannel audio, and should be equipped with Auto lip-synch functionality. The HDMI output should be Auto lip-synch aware and should delay audio or video to compensate for latencies in downstream devices MPEG Demultiplexer The Demultiplexer shall be compliant to the MPEG-2 transport layer defined in ISO/IEC [5] and ETSI TS [3] and: - shall be able to decode an ISO/IEC [5] stream with data rates up to 32 Mbit/s, - shall support variable bitrate elementary streams within a constant bitrate transport stream. MPEG VIDEO Decoder - The decoder of receiver shall fully comply with standard ISO IEC [4] for decoding MPEG-4 AVC - The decoder shall also comply with ETSI TS [3] and shall support VBR and CBR. (As option (in addition) : decoding of MPEG-2 coded signal according to ISO/IEC [17]) - The decoder of receiver shall ensure synchronization between AUDIO and VIDEO as follows: audio shall never lead the video program by more than 20 ms, and shall never lag the video by more than 45 ms - The decoder of receiver shall have processing elements for video format conversion to output the decoded video on its SCART or other analog interface 5

6 Decoding of SDTV Decoding of HDTV Active Format Descriptor Down conversion from HDTV TO SDTV Audio Decoder of SDTV and HDTV The decoder of the receiver shall support profile H.264/MPEG4 AVC Main Profile at Level 3 (used for H.264/:PEG4 AVC SDTV) and comply with ETSI TS [3] Format of SDTV: 4/3 and Resolution of SDTV: 720x576 (As option (in addition) the decoder of SDTV Level receiver should decode also MPEG-2 Main Profile@Main Level and comply with ETSI TS [3]) - Video decoder shall support H.264/MPEG4 AVC High Profile at Level 4 and comply with ETSI TS [3] (chapter 5.7 H.264/MPEG4 AVC HDTV). - Format of HDTV: 16/9 - Resolution of HDTV: 1920x1080 / 50 / Progressive 1920x1080 / 25 / Progressive 1920x1080 / 25 / Interlaced 1280 x720 / 50 / Progressive 1280 x720 / 25 / Progressive Ability to handle 16:9 widescreen and 4:3 picture format changes including support for correct aspect ratio and Active Format Descriptors. In case of SCART, or if any other analogue video output (Y, Pb, Pr or other) is available, the decoded High Definition video shall be down-converted by SD format converter to standard definition (SD) resolution for output via these interfaces. Picture down-conversion shall be implemented from any of the incoming encoded HD full screen luminance resolution of 1920x1080 and 1280x720 (as an OPTION also from 1440x1080, 1280x1080, 960x1080, 960x720 and 640x720) to 720x576 standard definition (SD) resolution. Down-converted video shall be displayed as 16:9 letterbox on 4:3 displays. The SD format converter should apply appropriate re-interlacing. The receiver shall provide at least one stereo audio decoder that is able to meet minimum decoding requirements based on MPEG 1 Layer II ( Musicam ISO/IEC ). Audio decoder shall support also MPEG4 HE AAC v1 and v2 ( high efficiency advanced audio coding) ( As option the decoder should support AC3) 6

7 Additional Audio Decoder requirements for HDTV Level RECEIVER (option) HDTV with multi-channel audio Radio mode System software upgrade Service information Navigator (USER INTERFACE) - The HDTV Level receiver should support reception of multi-channel (up to 5.1) audio in addition to the mandatory audio requirements for SDTV Level receivers. The HDTV Level receiver shall provide analogue audio outputs for stereo/mono, S/PDIF output and an HDMI output for multi-channel audio. Optionally additional analogue outputs may be provided for additional surround sound or audio components for additional languages and/or impaired people. - The HDTV level receiver shall be capable of decoding and down-mixing following formats for the analogue outputs: Mandatory: o MPEG1 layer II (Musicam ISO/IEC ) (2 channels). o HE AAC v1 and v2 (2 channels or 5.1 channel downmix to stereo), Optional o AC3 o E-AC3 The receiver shall always have the audio signal present on the analogue outputs (SCART and stereo out) whenever any of above supported formats is received. Should be supported The STB shall allow basic DVB-T RADIO reception and operation (switching between channels) without a TV screen. This can be done with a Radio/TV button on the front plate or on the remote control. In case of an alphanumeric display (optional) on STB the display should be large enough to accommodate the full length of the station name (up to 8 characters). The receiver shall provide at least one mechanism for upgrading system software The receiver shall have system software for interpretation and handling of the active service information and control of the local hardware/software according to EN [10] and ETSI TR [11]. The following tables are a mandatory set of tables the receiver shall be able to process: NIT, CAT, PAT, PMT, SDT, EIT, TDT, TOT The receiver shall offer basic functionality of EPG in order to present following: EIT actual (present/following/scheduled) EIT other (present/following/scheduled) -The navigator shall be presented in Frensh/English minimum languages and Arabic if available - Support of EPG 7

8 Teletext Teletext for HDTV Level Subtitling Interactivity Other standards supported as options Energy consumption The SDTV Level receiver shall offer at least the following options for presentation of Teletext: - By insertion of the Teletext data in the VBI of the analogue CVBS video output. Insertion shall conform to ITU-R BT [18] and to requirements for level 1.5 defined in ETS [22]; - and if available By presentation of Teletext within the navigator of the receiver - Support of Arabic language - HDTV Level receiver should be able to display (EBU) Teletext (both normal teletext pages and teletext subtitling pages) using the OSD, meeting the requirements for level 1.5 in ETSI EN Enhanced Teletext Specification. (Re-insertion of teletext data into VBI of the video signal for teletext pages not enough since the VBI signal is not defined for the HDMI. Therefore all HDTV Level receivers shall implement a full Teletext decoder level 1.5). - Arabic language should be considered - The receiver shall be capable of decoding and displaying DVB subtitle which are transmitted in conformance with ETSI EN [27] - The HDTV Level receiver shall be able to up-scale DVB SDTV subtitling and EBU Teletext subtitling for a service with HDTV video, with the target to keep the same relative size as the DVB SDTV subtitling and Teletext subtitling has within a SDTV video grid. Up-scaling should be done with a good readable result at the HDTV output. Interactivity middleware engine is optional and telecom return-channel with modem or equivalent is optional - DVB-S - DVB-S2 - IPTV - Internet applications If one or more or of these standards are supported. The necessary, front end, connections and interfaces should be implemented low 8

9 3-MINIMUM REQUIREMENT SPECIFICATIONS FOR AND INTEGRATED DIGITAL TV SET (idtv) FOR SDTV Standard definition television AND HDTV High definition television Terminology SHALL (mandatory): Denotes that the item is mandatory. SHOULD (recommended): Denotes that the item is not mandatory, but highly recommended. OPTION: Denotes that the item is not mandatory General RF part The receiver shall allow reception and demodulation of the DVB-T signal transmitted in accordance with EN [1]. Analogue reception shall be also supported during transition period ( Analogue/digital simulcast) Reception mode The receiver shall allow reception of the DVB-T signal in Single Frequency Networks (SFN) and Multi Frequency Networks (MFN) Frequency bands reception of all channels in UHF Mhz (Band IV-V with bandwidth 8 MHz) and reception of all channels in VHF MHz(Band III with bandwidth 7 MHz) Reception Transmission mode: 2k and 8k COFDM combinations and Modulation: QPSK, 16 QAM, 64QAM parameters Code rate: 1/2, 2/3, 3/4, 5/6, 7/8 Guard interval: 1/4, 1/8, 1/16, 1/32 Hierarchical mode: option Echoes The receiver shall allow reception of the DVB-T signal in environment with echoes according to EN [1] signal level and signal Within the user interface the receiver shall provide the information of signal level and signal quality. The quality implementation of user interface is responsibility of the producer Input connector The receiver shall have at least one tuner input connector in accordance with IEC , part 2 [2] The input impedance shall be 75 Ohm. Tuning/Scanning procedures The receiver shall, in case of same Transport stream Id and Service Id on two or more different frequencies save all frequencies, or select the frequency with better signal. The receiver shall be able to receive and react on tuning parameters in PSI/SI tables (e.g. SDT or NIT information). In addition to the automatic search, the receiver shall allow a manual search where Channel Id (or frequency) is entered by the end user. The receiver shall tune to this channel, search all available DVB-T modes, add new and replace existing in the service list (without considering any quality criteria). 9

10 SCART interface Interfaces for Conditional Access RCA analog video interface The receiver shall have at least one conventional SCART Interface The receiver should support at least one DVB Common Interface (for CA module) for conditional access. CI-slot should comply with EN50221 [19] As option The receiver should have at least one analogue audio interface based on two RCA connectors HDMI interface - The HDTV Level receiver shall have at least one High-Definition Multimedia Interface (HDMI) with type A connector[29] or equivalent, supporting displays that comply with the EICTA HD-Ready requirements [28] - It shall also be possible to manually set default output format from the HDTV Level STB to a fixed format. - Fixed format shall include at least the following formats: HD interlaced: 1920x1080i (25 Hz),1440x1080i (25 Hz), HD progressive : 1280x720p (50 Hz) - The idtv HDMI input(s) should declare audio/video latency information in their EDIDs (Extended display identification data) MPEG Demultiplexer The Demultiplexer shall be compliant to the MPEG-2 transport layer defined in ISO/IEC [5] and ETSI TS [3] and: - shall be able to decode an ISO/IEC [5] stream with data rates up to 32 Mbit/s, - shall support variable bitrate elementary streams within a constant bitrate transport stream. MPEG VIDEO Decoder - The decoder of receiver shall fully comply with standard ISO IEC [4] for decoding MPEG-4 AVC and - The decoder shall also comply with ETSI TS [3] and shall support VBR and CBR. (As option (in addition): decoding of MPEG-2 coded signal according to ISO/IEC [17]) - The decoder of receiver shall ensure synchronization between AUDIO and VIDEO as follows: audio shall never lead the video program by more than 20 ms, and shall never lag the video by more than 45 ms Decoding of SDTV The decoder of the receiver shall support profile H.264/MPEG4 AVC Main Profile at Level 3 (used for H.264/MPEG4 AVC SDTV) and comply with ETSI TS [3] Format of SDTV: 4/3 and Resolution of SDTV: 720x576 The decoder of receiver shall be able to switch between 4:3 and 16:9 picture aspect ratio. (As option (in addition) the decoder of SDTV Level receiver should decode also MPEG-2 Main Profile@Main Level and comply with ETSI TS [3]) 10

11 Decoding of HDTV Video decoder shall support H.264/MPEG4 AVC High Profile at Level 4 and comply with ETSI TS [3] (chapter 5.7 H.264/MPEG4 AVC HDTV). - Format of HDTV: 16/9 - Resolution of HDTV: 1920x1080 / 50 / Progressive 1920x1080 / 25 / Progressive 1920x1080 / 25 / Interlaced 1280 x720 / 50 / Progressive 1280 x720 / 25 / Progressive Active Descriptor Format Ability to handle 16:9 widescreen and 4:3 picture format changes including support for correct aspect ratio and Active Format Descriptors. Audio Decoder of SDTV and HDTV Additional Audio Decoder requirements for HDTV Level RECEIVER ( option) HDTV with multi-channel audio Radio mode (option) System software upgrade Service information Navigator (USER INTERFACE) The receiver shall provide at least one stereo audio decoder that is able to meet minimum decoding requirements based on MPEG 1 Layer II ("Musicam" ISO/IEC ). Audio decoder shall support also MPEG4 HE AAC v1 and v2 ( high efficiency advanced audio coding) ( As option the decoder should support AC3) - The HDTV Level receiver should support reception of multi-channel (up to 5.1) audio in addition to the mandatory audio requirements for SDTV Level receivers. Should be supported The receiver should allow basic DVB-T RADIO reception and operation (switching between channels). This can be done with a Radio/TV button on the front plate or on the remote control. The receiver shall provide at least one mechanism for upgrading system software The receiver shall have system software for interpretation and handling of the active service information and control of the local hardware/software according to EN [10] and ETSI TR [11]. The following tables are a mandatory set of tables the receiver shall be able to process: NIT, CAT, PAT, PMT, SDT, EIT, TDT, TOT The receiver shall offer basic functionality of EPG in order to present following: EIT actual (present/following/scheduled) EIT other (present/following/scheduled) -The navigator shall be presented in Frensh/English minimum languages and Arabic if available - Support of EPG 11

12 Teletext Teletext for HDTV Level Subtitling Interactivity Other standards supported as options Energy consumption The SDTV Level receiver shall offer at least the following options for presentation of Teletext: - By presentation of Teletext within the navigator of the receiver A suitable remote control button must be provided to launch the Teletext OSD display - or equivalent way - Arabic language should be considered - HDTV Level receiver shall be able to display (EBU) Teletext (both normal teletext pages and teletext subtitling pages) using the OSD, meeting the requirements for level 1.5 in ETSI EN Enhanced Teletext Specification. Or equivalent way - Arabic language should be considered The receiver shall be capable of decoding and displaying DVB subtitle which are transmitted in conformance with ETSI EN [27] The HDTV Level receiver shall be able to up-scale DVB SDTV subtitling and EBU Teletext subtitling for a service with HDTV video, with the target to keep the same relative size as the DVB SDTV subtitling and Teletext subtitling has within a SDTV video grid. Up-scaling should be done with a good readable result at the HDTV output. Interactivity middleware engine is optional and telecom return-channel with modem or equivalent is optional - DVB-S - DVB-S2 - IPTV - Internet applications If one or more or of these standards are supported. The necessary, front end, connections and interfaces should be implemented low 12