Conformations and dynamics of Ets-1 ETS domain–DNA complexes
EUROPEAN ETS 300 352 TELECOMMUNICATION June 1994 … · Page 2 ETS 300 352: June 1994 Whilst every...
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EUROPEAN ETS 300 352
TELECOMMUNICATION June 1994
STANDARD
Source: EBU/ETSI JTC Reference: DE/JTC-HDMAC
ICS: 33.160.20
Key words: HDMAC, TDM, Teletext, Service Identification, Conditional Access, DATV
EBUUER
European B roadcast ing Union Union Européenne de Radio-Télévis ion
Television Systems;Specification of the D2-HDMAC/Packet system
ETSIEuropean Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCEOffice address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCEX.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [email protected]
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and theforegoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1994. All rights reserved.
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Whilst every care has been taken in the preparation and publication of this document, errors in content,typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to"ETSI Editing and Committee Support Dept." at the address shown on the title page.
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Contents
Foreword .....................................................................................................................................................13
1 Scope ................................................................................................................................................151.1 Field of application .............................................................................................................15
2 Normative references........................................................................................................................15
3 Definitions, symbols and abbreviations .............................................................................................163.1 Definitions ..........................................................................................................................163.2 Symbols .............................................................................................................................163.3 Abbreviations .....................................................................................................................16
4 Specification of the time-division multiplex........................................................................................184.1 Introduction ........................................................................................................................184.2 Basic hypotheses...............................................................................................................18
4.2.1 Vision standard..............................................................................................184.2.2 Capacity for the sound/Data multiplex accompanying the HDMAC vision
standard ........................................................................................................184.2.3 Capacity for DATV/Data accompanying the HDMAC vision standard ..........18
4.3 Transmission multiplex structure .......................................................................................184.3.1 Instantaneous bit rate....................................................................................184.3.2 Data bursts format.........................................................................................18
4.3.2.1 Sound/Data multiplex...........................................................194.3.2.2 DATV/Data multiplex ...........................................................19
4.3.3 Synchronization .............................................................................................194.3.3.1 Line synchronization ............................................................194.3.3.2 Frame synchronization ........................................................204.3.3.3 Colour sequence identification.............................................214.3.3.4 Packet synchronization........................................................214.3.3.5 Clamping..............................................................................21
4.3.4 Reference and test signals............................................................................214.3.4.1 Reference and test line 624.................................................214.3.4.2 Reference and test line 312.................................................224.3.4.3 Reference and test line 623.................................................23
4.3.4.3.1 Basic mode ...........................................234.3.4.3.2 Cyclical mode........................................24
4.3.5 Signalling of RF channel, TDM configuration and service identificationinformation.....................................................................................................24
4.3.6 Packet transmission ......................................................................................244.3.6.1 Packet header .....................................................................24
4.3.6.1.1 Address field .........................................254.3.6.1.2 Continuity index ....................................254.3.6.1.3 Protection suffix ....................................25
4.3.6.2 Useful data...........................................................................264.3.6.3 Packets per subframe .........................................................264.3.6.4 Bit-interleaving .....................................................................26
4.3.7 Data scrambling for spectrum shaping purpose ...........................................274.3.8 Scrambling for the free-access and controlled-access modes of the
conditional-access system ............................................................................274.4 Data coding and multiplexing with the picture....................................................................27
4.4.1 Digital components........................................................................................274.4.2 Digital component coding ..............................................................................28
4.4.2.1 Digital coding .......................................................................284.4.2.2 Relationship between bits of data and the sampling
structure...............................................................................284.4.2.3 20,25 Mbit/s data .................................................................28
4.4.2.3.1 Data precoding of 20,25 Mbit/s data.....28
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4.4.2.3.2 Duobinary coding of 20,25 Mbit/s data. 294.4.2.3.3 Sample coding of 20,25 Mbit/s data..... 29
4.4.2.4 10,125 Mbit/s data............................................................... 294.4.2.4.1 Data precoding of 10,125 Mbit/s data .. 294.4.2.4.2 Duobinary coding of 10,125 Mbit/s
data ...................................................... 304.4.2.4.3 Sample coding of 10,125 Mbit/s data... 30
4.4.3 Picture/Data multiplex................................................................................... 314.5 Specification of data transmitted in line 625...................................................................... 31
4.5.1 Overall structure of line 625.......................................................................... 314.5.1.1 Frame synchronization data................................................ 314.5.1.2 Data blocks ......................................................................... 31
4.5.2 Unified Date and Time (UDT) ....................................................................... 324.5.3 Static Data Frame (SDF) .............................................................................. 324.5.4 Repeated Data Frame (RDF) for Time Division Multiplex Control
(TDMCTL)..................................................................................................... 364.5.5 DATV/Data multiplex and FBI teletext multiplex overlapping ....................... 384.5.6 Panning vectors ............................................................................................ 384.5.7 Unallocated bits ............................................................................................ 39
5 Specification for the HDMAC vision signal ....................................................................................... 615.1 Introduction........................................................................................................................ 615.2 Description of the HDMAC Bandwidth Reduction Encoding (BRE) system...................... 61
5.2.1 HDTV source signal characteristics.............................................................. 615.2.2 General description of BRE system.............................................................. 62
5.2.2.1 Introduction ......................................................................... 625.2.2.2 Compatibility improvement.................................................. 625.2.2.3 BRE coding modes ............................................................. 635.2.2.4 BRE modes of operation..................................................... 645.2.2.5 Block decision and motion estimation................................. 645.2.2.6 Motion compensation in the 40 ms mode ........................... 65
5.2.3 Shuffling........................................................................................................ 655.2.4 Luminance signal processing of the BRE system ........................................ 65
5.2.4.1 Luminance 80 ms processing branch ................................. 655.2.4.1.1 Transmissible range of the spatial
frequency spectrum.............................. 665.2.4.1.2 Sub-Nyquist sampling .......................... 665.2.4.1.3 80 ms shuffling ..................................... 665.2.4.1.4 TCI+ Temporal Compatibility
Improvement filter ................................ 665.2.4.2 Luminance 40 ms processing branch ................................. 67
5.2.4.2.1 Transmissible range of the spatialfrequency spectrum.............................. 68
5.2.4.2.2 Vertical Compatibility Improvement(VCI) filter ............................................. 68
5.2.4.2.3 Sub-Nyquist sampling .......................... 685.2.4.2.4 40 ms shuffling ..................................... 685.2.4.2.5 MCCI+ Motion Compensated
Compatibility Improvement filter........... 685.2.4.3 Luminance 20 ms processing branch ................................. 71
5.2.4.3.1 Transmissible range of the spatialfrequency spectrum.............................. 71
5.2.4.3.2 Sub-Nyquist sampling .......................... 715.2.4.3.3 20 ms shuffling ..................................... 71
5.2.5 Colour difference signal processing of the BRE system............................... 725.2.5.1 Colour difference 80 ms processing branch ....................... 72
5.2.5.1.1 Transmissible range of the spatialfrequency spectrum.............................. 72
5.2.5.1.2 Sub-Nyquist sampling .......................... 725.2.5.1.3 80 ms shuffling ..................................... 72
5.2.5.2 Colour difference 40 ms processing branch ....................... 725.2.5.2.1 Transmissible range of the spatial
frequency spectrum.............................. 72
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5.2.5.2.2 Sub-Nyquist sampling ...........................725.2.5.2.3 40 ms shuffling......................................72
5.2.5.3 Colour difference 20 ms processing branch........................725.2.5.3.1 Transmissible range of the spatial
frequency spectrum ..............................725.2.5.3.2 Sub-Nyquist sampling ...........................735.2.5.3.3 20 ms shuffling......................................73
5.3 General video characteristics ............................................................................................735.3.1 Picture signal.................................................................................................735.3.2 Number of lines per picture ...........................................................................735.3.3 Interlace.........................................................................................................735.3.4 Aspect ratio ...................................................................................................735.3.5 Gamma .........................................................................................................735.3.6 Baseband format ...........................................................................................73
5.3.6.1 Sub-Nyquist sampling phases .............................................745.3.7 Sampling clock frequencies ..........................................................................745.3.8 Relationship between HDMAC clock frequency and line frequency .............745.3.9 Field frequency..............................................................................................745.3.10 Relationship with CCIR Recommendation 656 .............................................74
5.4 Synchronization and TDM control ......................................................................................745.4.1 Colour sequence identification ......................................................................745.4.2 Line numbering..............................................................................................745.4.3 Frame synchronization ..................................................................................74
5.5 The HDMAC vision signal ..................................................................................................755.5.1 General specification.....................................................................................755.5.2 Luminance component..................................................................................75
5.5.2.1 Luminance amplitude range ................................................755.5.2.2 Luminance time compression..............................................755.5.2.3 Amplitude/Frequency characteristic after MAC
compression ........................................................................755.5.3 Colour-difference components ......................................................................75
5.5.3.1 Colour-difference amplitude range ......................................755.5.3.2 The colour-difference time compression .............................755.5.3.3 Amplitude/Frequency characteristic after MAC
compression ........................................................................755.5.3.4 Colour-difference line sequence..........................................76
5.5.4 Transcoding from PAL or SECAM to HDMAC ..............................................765.5.5 DATV data - vision timing..............................................................................76
5.6 Colour signal equations .....................................................................................................765.6.1 Primary colour chromaticities ........................................................................765.6.2 Luminance signal voltage..............................................................................765.6.3 Unscaled colour-difference signal voltage.....................................................765.6.4 Transmitted colour-difference voltages .........................................................76
5.7 Picture scrambling .............................................................................................................775.7.1 Introduction....................................................................................................775.7.2 Description of the picture signal scrambling process ....................................77
5.7.2.1 Double-cut component rotation ...........................................775.7.2.2 Single-cut line rotation .........................................................78
5.8 DATV data capacity and coding.........................................................................................795.8.1 DATV data.....................................................................................................795.8.2 Capacity for DATV.........................................................................................795.8.3 Structure of DATV packets............................................................................80
5.8.3.1 Continuity index ...................................................................805.8.3.2 PT byte allocation ................................................................805.8.3.3 Scrambling for conditional access .......................................805.8.3.4 Procedure for changing the DATV packet address .............80
5.8.4 Service identification data .............................................................................805.8.5 DATV - correspondence to video ..................................................................815.8.6 DATV block structure mapped on the transmitted signal..............................815.8.7 DATV data coding system.............................................................................81
5.8.7.1 General format.....................................................................825.8.7.2 DATV data compression......................................................825.8.7.3 DATV data format................................................................82
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5.8.7.3.1 Film bit.................................................. 835.8.7.3.2 Feature byte ......................................... 835.8.7.3.3 MENU 1..9............................................ 835.8.7.3.4 Code words (CWD).............................. 845.8.7.3.5 Stuffing bits .......................................... 87
5.8.8 Fire code (90, 82) ......................................................................................... 87
6 Specification of sound coding methods .......................................................................................... 1176.1 Introduction...................................................................................................................... 1176.2 Sound coding methods ................................................................................................... 1176.3 Protection of sound signals against errors ...................................................................... 118
6.3.1 First level protection.................................................................................... 1186.3.1.1 Companded mode ............................................................ 1186.3.1.2 Linear mode ...................................................................... 119
6.3.2 Second level protection .............................................................................. 1196.3.2.1 Companded mode ............................................................ 1196.3.2.2 Linear mode ...................................................................... 119
6.4 Structure of the sound coding blocks .............................................................................. 1196.4.1 Linear mode and first level protection......................................................... 120
6.4.1.1 Stereophonic mode........................................................... 1206.4.1.2 Monophonic mode ............................................................ 1206.4.1.3 Control information............................................................ 121
6.4.2 Companded mode and first level protection ............................................... 1216.4.2.1 Stereophonic mode........................................................... 1216.4.2.2 Monophonic mode ............................................................ 1216.4.2.3 Control information............................................................ 122
6.4.3 Linear mode and second level protection ................................................... 1226.4.3.1 Stereophonic mode........................................................... 1226.4.3.2 Monophonic mode ............................................................ 1236.4.3.3 Control information............................................................ 123
6.4.4 Companded mode and second level protection ......................................... 1246.4.4.1 Stereophonic mode........................................................... 1246.4.4.2 Monophonic mode ............................................................ 1246.4.4.3 Control information............................................................ 125
6.5 Insertion of the coding block into packet structure.......................................................... 1256.5.1 General ....................................................................................................... 1256.5.2 Insertion of a 90-byte coding block ............................................................. 1266.5.3 Insertion of a 120-byte coding block ........................................................... 1266.5.4 Continuity index (see subclause 4.3.6.1.2)................................................. 1266.5.5 Buffer storage ............................................................................................. 1266.5.6 Scrambling for the free-access and the controlled-access modes of the
conditional-access system.......................................................................... 1276.6 Transmission of silence information................................................................................ 1276.7 Specification of sound interpretation data ....................................................................... 127
6.7.1 General ....................................................................................................... 1276.7.2 General structure for the coding of sound interpretation data .................... 128
6.7.2.1 Commands........................................................................ 1286.7.2.2 Data groups....................................................................... 128
6.7.2.2.1 Structure of the interpretation blocks . 1286.7.2.2.2 The data group transport.................... 129
6.7.3 Specification of commands having the indicators CI = 1 and CI = 2 .......... 1296.7.4 Procedure for updating the parameters of a sound configuration .............. 1336.7.5 Automatic mixing of main sound and commentary in the television service1336.7.6 Automatic mixing of main sound and a commentary in sound
broadcasting ............................................................................................... 135
7 Specification of the system for data services ................................................................................. 1467.1 Introduction...................................................................................................................... 1467.2 Teletext service in the field blanking interval................................................................... 146
7.2.1 Data transmission in the field-blanking interval .......................................... 1467.2.1.1 Data coding ....................................................................... 1467.2.1.2 Relationship between the bits of data and the sampling
structure (figure 43)........................................................... 146
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7.2.1.3 Clamping transitions ..........................................................1467.2.2 Transmission of teletext components .........................................................146
7.2.2.1 Allocated lines....................................................................1467.2.2.2 Transmission of CCIR system A teletext...........................1477.2.2.3 Transmission of CCIR system B teletext...........................147
7.2.3 Service identification data ...........................................................................1477.3 Teletext service in the sound/data and DATV/data multiplex ..........................................148
7.3.1 Teletext transmission structure ...................................................................1487.3.1.1 Teletext data block description ..........................................1487.3.1.2 Data block prefix description .............................................1487.3.1.3 Data block suffix description..............................................1497.3.1.4 Levels of error protection...................................................149
7.3.2 Insertion of teletext data blocks into the MAC/packet multiplex ..................1507.3.3 Service identification data ...........................................................................150
7.4 General Purpose Data service.........................................................................................1517.4.1 Description of GPD service protocol ...........................................................151
7.4.1.1 General ..............................................................................1517.4.1.2 OSI link and network layer features...................................1527.4.1.3 Identification of GPD services ...........................................1527.4.1.4 Data message structure (see figure 46) ............................153
7.4.1.4.1 Data message header ........................1537.4.1.4.2 Segment description ...........................1547.4.1.4.3 Data segment CRC description ..........154
7.4.2 Assembly of messages into packets ...........................................................1547.4.2.1 Non-linked component.......................................................1547.4.2.2 Linked component .............................................................1557.4.2.3 Use of PT byte ...................................................................155
7.4.3 Multiplexing rules.........................................................................................1557.4.4 Service identification ...................................................................................156
7.4.4.1 General description of GPD service identification .............1577.4.4.2 Description of GPD SI list transport protocol .....................1587.4.4.3 Use of Message Index (MI) in each type of list..................159
7.4.4.3.1 Network summary list .........................1597.4.4.3.2 Service description list ........................1597.4.4.3.3 NSI cross-reference list ......................1597.4.4.3.4 UI cross-reference list.........................1597.4.4.3.5 Name server list..................................159
7.4.4.4 Computation of NSI and UI message pointers ..................1597.4.4.5 Assembling messages into packets ..................................1607.4.4.6 Rules of multiplexing GPD SI messages...........................160
7.4.4.6.1 Transmission rates .............................1607.4.4.7 The coding of GPD SI lists ................................................161
7.4.4.7.1 Network summary message (seefigure 47b)...........................................161
7.4.4.7.2 Service description list (seefigure 47c)...........................................161
7.4.4.7.3 NSI cross-reference list (seefigure 47d)...........................................163
7.4.4.7.4 UI cross-reference list (see figure 47e)1637.4.4.7.5 Name server list (see figure 47f) ........164
7.4.4.8 Coding changes.................................................................1647.4.5 Performance of GPD protocol in the presence of channel bit errors ..........164
8 Specification of the service identification channel ...........................................................................1728.1 Introduction ......................................................................................................................1728.2 Parameters ......................................................................................................................172
8.2.1 Network identification and description in terms of its services ....................1728.2.2 Service and programme-item description ...................................................1768.2.3 Service components description .................................................................1778.2.4 Miscellaneous information...........................................................................1808.2.5 Further parameters required for additional service identification (ASI) .......182
8.3 Coding structure...............................................................................................................1828.3.1 Commands and parameters........................................................................183
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8.3.2 SI Data channel .......................................................................................... 1858.4 Rules for multiplexing...................................................................................................... 1878.5 Use of error protection levels .......................................................................................... 187
9 Specification of the conditional access system .............................................................................. 1949.1 Introduction...................................................................................................................... 1949.2 General description of the conditional-access system.................................................... 194
9.2.1 The scrambling and encryption systems .................................................... 1949.2.2 Example of functional operation ................................................................. 196
9.3 Sound, data, DATV and picture scrambling .................................................................... 1979.3.1 Introduction ................................................................................................. 1979.3.2 Description of the sound and data scrambling process.............................. 1979.3.3 Derivation of the descrambling sequences................................................. 1989.3.4 Synchronization of the descrambling sequences ....................................... 198
9.4 The conditional-access interface..................................................................................... 1999.4.1 Introduction ................................................................................................. 1999.4.2 Functions within the access-control system ............................................... 1999.4.3 Basic functions of the CA interface............................................................. 200
9.4.3.1 General diagram ............................................................... 2009.4.3.2 Role of the CA interface.................................................... 2009.4.3.3 Practical interface specification......................................... 2009.4.3.4 Data crossing the CA interface ......................................... 2009.4.3.5 Structure of information exchanged across the interface . 200
9.5 Conditional-access data.................................................................................................. 2029.5.1 Introduction ................................................................................................. 2029.5.2 Message formats ........................................................................................ 202
10 Specification of the modulation parameters ................................................................................... 21810.1 Introduction...................................................................................................................... 21810.2 Baseband signal processing ........................................................................................... 218
10.2.1 Pre-emphasis.............................................................................................. 21810.2.1.1 Linear pre-emphasis ......................................................... 21810.2.1.2 Non-linear pre-emphasis (E7E) ........................................ 218
10.2.2 Nyquist filtering ........................................................................................... 22010.3 Modulation parameters for satellite broadcasting ........................................................... 221
10.3.1 Service continuity........................................................................................ 22110.3.2 Modulation method ..................................................................................... 22110.3.3 Deviation sensitivity .................................................................................... 22110.3.4 Energy dispersal ......................................................................................... 22110.3.5 DC restoration............................................................................................. 22210.3.6 RF bandwidth.............................................................................................. 22210.3.7 Out of band radiation for the overall signal ................................................. 222
10.4 Modulation parameters for cabled distribution networks................................................. 22310.4.1 Frequency allocation and channel spacing................................................. 22310.4.2 Modulation method ..................................................................................... 22310.4.3 Polarity of modulation ................................................................................. 22310.4.4 Depth of modulation.................................................................................... 22310.4.5 Transmitter filtering..................................................................................... 223
10.4.5.1 Transmitter Nyquist filtering around the carrier................. 22310.4.5.2 IF filter specification .......................................................... 22310.4.5.3 Transmitter phase-frequency response ............................ 224
11 Code of Practice ............................................................................................................................. 23711.1 Introduction...................................................................................................................... 23711.2 Rules applying to all services .......................................................................................... 23711.3 Rules applying only to television services ....................................................................... 237
11.3.1 General characteristics ............................................................................... 23711.3.2 Special arrangements for the broadcasting of TV sounds ......................... 237
11.4 Rules applying to sound broadcasting services multiplexed with a television service .... 23911.4.1 General characteristics of radio services.................................................... 23911.4.2 Special arrangements for the broadcasting of radio sounds ...................... 239
11.5 Rules applying to teletext components............................................................................ 24011.6 Rules applying to overlapping windows of DATV and teletext in the FBI........................ 240
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11.7 SI channel ........................................................................................................................24011.7.1 SI channel coding rules applying to all services ..........................................24011.7.2 Supplementary SI coding rules applying to television and sound
broadcasting services without scrambled components...............................24011.7.3 Guideline to broadcasters for the choice of transmitted parameters ..........24111.7.4 Timing between sound component switching and UPDATE in the SI
channel........................................................................................................24111.7.4.1 Definition of the reference frame .......................................24111.7.4.2 Switching window...............................................................241
11.8 Transitions between D2-HDMAC and D2-MAC...............................................................24211.8.1 D2-HDMAC to D2-MAC transition ...............................................................24211.8.2 D2-MAC to D2-HDMAC transition ...............................................................242
Annex A (normative): Code tables ......................................................................................................246
A.1 Introduction......................................................................................................................................246
A.2 CHID codes .....................................................................................................................................246
A.3 Coding of characters used for various text messages transmitted in the dedicated channel (seesubclause 8.2) .................................................................................................................................246A.3.1 Repertoires ......................................................................................................................246A.3.2 Coding tables ...................................................................................................................246A.3.3 Control characters ...........................................................................................................246A.3.4 Display of clear text messages ........................................................................................247
A.4 Coding of programme type (see subclause 8.2.2) ..........................................................................247A.4.1 Introduction ......................................................................................................................247A.4.2 Inventory of programme types .........................................................................................247A.4.3 Compilation of the code table ..........................................................................................247
A.5 Coding of languages (see subclause 8.2.3)....................................................................................250A.5.1 Introduction ......................................................................................................................250A.5.2 Inventory of languages.....................................................................................................250A.5.3 Compilation of the code table ..........................................................................................250
Annex B (normative): Specification of the 656+ interface ...................................................................256
B.1 Introduction......................................................................................................................................256
B.2 General description of the 656+ interface .......................................................................................256
B.3 Compatibility of 656+ with CCIR Recommendation 656 and digital video recording ......................256
B.4 Structure of the line .........................................................................................................................256
B.5 Content of DATV and panning data ................................................................................................258B.5.1 DATV data .......................................................................................................................258B.5.2 Panning data....................................................................................................................259
B.6 Timing relationship between DATV data and picture ......................................................................259
B.7 Relationship between the video fields numbering and the sampling phase of Y, CR, CB andMAC signals ....................................................................................................................................260
B.8 Electrical characteristics..................................................................................................................260
Annex C (informative): Coding example for the special data in line 625...............................................265
C.1 Introduction......................................................................................................................................265
C.2 Legend in figure C.1 and figure C.2 ................................................................................................265
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C.3 Remarks on figure C.1................................................................................................................... 266
C.4 General comments on figure C.2.................................................................................................... 266
C.5 Remarks on figure C.2.................................................................................................................... 267
Annex D (informative): Duobinary coding at 40,5 MHz sample rate..................................................... 271
D.1 Introduction ..................................................................................................................................... 271D.1.1 Relationship between bits of data and the sampling structure........................................ 271
D.2 Digital component coding ............................................................................................................... 271D.2.1 20,25 Mbit/s data............................................................................................................. 271
D.2.1.1 Data Precoding of 20,25 Mbit/s data .......................................................... 271D.2.1.2 Duobinary coding of 20,25 Mbit/s data ....................................................... 272D.2.1.3 Sample coding of 20,25 Mbit/s data ........................................................... 272
D.2.2 10,125 Mbit/s data........................................................................................................... 272D.2.2.1 Data Precoding of 10,125 Mbit/s data ........................................................ 273D.2.2.2 Duobinary coding of 10,125 Mbit/s data ..................................................... 273D.2.2.3 Sample coding of 10,125 Mbit/s data ......................................................... 273
Annex E (informative): Coding examples for the interpretation blocks for a sound channel in variousconfigurations................................................................................................... 275
E.1 General ........................................................................................................................................... 275E.1.1 Transmission without up-dating ...................................................................................... 275E.1.2 Transmission with up-dating ........................................................................................... 276
Annex F (informative): Mixing operation............................................................................................... 277
Annex G (informative): Coding example for information within the dedicated channel of thesound/data multiplex........................................................................................ 278
G.1 General ........................................................................................................................................... 278
G.2 Parameters ..................................................................................................................................... 278G.2.1 Network identification and description in terms of services ............................................ 279
G.2.1.1 Medium priority (M) - Data group 0............................................................. 279G.2.1.2 Low priority (L) - Data group 0 .................................................................... 279
G.2.2 TV service description..................................................................................................... 280G.2.2.1 Medium priority (M) - Data group 3............................................................. 280
G.2.3 Radio sound service description ..................................................................................... 281G.2.3.1 Medium priority (M)- Data group 4.............................................................. 281
G.2.4 Teletext service description............................................................................................. 281G.2.4.1 Medium priority (M) - Data group 6............................................................. 281
G.3. Network identification and description in terms of services............................................................ 282G.3.1 Medium priority (M) - Data group 0 ................................................................................. 282
G.3.1.1 Low priority (L) - Data group 9 .................................................................... 282G.3.2 TV service description..................................................................................................... 282
G.3.2.1 Medium priority (M) - Data group 3............................................................. 282G.3.3 Radio service description ................................................................................................ 282
G.3.3.1 Medium priority (M) - Data group 4............................................................. 282G.3.4 Teletext service description............................................................................................. 283
G.3.4.1 Medium priority (M) - Data group 6............................................................. 283
G.4 Packet rate requirements for the SI dedicated channel example................................................... 283
Annex H (informative): D2-MAC and D2-HDMAC compatibility ........................................................... 290
H.1 Introduction ..................................................................................................................................... 290
H.2 D2-MAC signal and D2-HDMAC decoder....................................................................................... 290
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Page 11ETS 300 352: June 1994
H.3 D2-HDMAC signal and D2-MAC decoder .......................................................................................290
H.4 D2-HDMAC signal in a limited channel bandwidth..........................................................................290
Annex J (informative): Specification of an interface for digital D2-HDMAC signals .............................291
J.1 Introduction......................................................................................................................................291
J.2 Signal format ...................................................................................................................................291J.2.1 General description of the interface.................................................................................291J.2.2 Vision data .......................................................................................................................291J.2.3 Duobinary data burst........................................................................................................291
J.3 Particular characteristics .................................................................................................................292J.3.1 Electrical characteristics of the interface .........................................................................292
J.3.1.1 General........................................................................................................292J.3.1.2 Logic convention .........................................................................................292J.3.1.3 Line driver characteristics (source) .............................................................292J.3.1.4 Line receiver characteristics (destination) ...................................................292
J.3.2 Clock signal......................................................................................................................292J.3.2.1 General........................................................................................................292J.3.2.2 Clock-to-data timing relationship.................................................................293
J.3.3 Mechanical details of the connector ................................................................................293
History........................................................................................................................................................296
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Page 13ETS 300 352: June 1994
Foreword
This European Telecommunication Standard (ETS) has been produced under the authority of the JointTechnical Committee (JTC) of the European Broadcasting Union (EBU) and the EuropeanTelecommunications Standards Institute (ETSI).
This ETS is based upon ETS 300 250 (D2-MAC), it describes the baseband structure, multiplexing andmodulation of the D2-HDMAC/packet system for High Definition Television (HDTV) broadcasting. Thisdraft ETS was produced with the co-operation of the EUREKA 95 project.
In view of the urgency for presenting the technical content of this ETS and for historic reasons a numberof the figures within this ETS, are in their original form as received from the EBU. These figures have nottherefore, undergone the normal ETSI editing procedures or quality control procedures relating to theirpresentation.
NOTE: The EBU/ETSI Joint Technical Committee was established in 1990 to co-ordinate thedrafting of European Telecommunication Standards in the specific field of radio,television and data broadcasting.
The European Broadcasting Union (EBU) is a professional association of broadcastingorganisations whose work includes the co-ordination of its Members' activities in thetechnical, legal, programme-making and programme-exchange domains. The EBUhas Active Members in about 50 countries in the European Broadcasting Area; itsheadquarters is in Geneva *.
* European Broadcasting UnionCase Postale 67CH-1218 GRAND SACONNEX (Geneva)Switzerland
Tel: +41 22 717 21 11Fax: +41 22 717 24 81
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Page 42ETS 300 352: 1994
Figure 2a: General HDMAC/packet TDM structure
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Page 296ETS 300 352: June 1994
History
Document history
June 1994 First Edition
March 1996 Converted into Adobe Acrobat Portable Document Format (PDF)