1、 INTERNATIONAL TELECOMMUNICATION UNION ITU-T J.182 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (03/2001) SERIES J: CABLE NETWORKS AND TRANSMISSION OF TELEVISION, SOUND PROGRAMME AND OTHER MULTIMEDIA SIGNALS Miscellaneous Parameter sets for analogue interface specifications for the interconnectio
2、n of set-top boxes and presentation devices in the home ITU-T Recommendation J.182 (Formerly CCITT Recommendation) ITU-T J-SERIES RECOMMENDATIONS CABLE NETWORKS AND TRANSMISSION OF TELEVISION, SOUND PROGRAMME AND OTHER MULTIMEDIA SIGNALS General Recommendations J.1J.9 General specifications for anal
3、ogue sound-programme transmission J.10J.19 Performance characteristics of analogue sound-programme circuits J.20J.29 Equipment and lines used for analogue sound-programme circuits J.30J.39 Digital encoders for analogue sound-programme signals J.40J.49 Digital transmission of sound-programme signals
4、J.50J.59 Circuits for analogue television transmission J.60J.69 Analogue television transmission over metallic lines and interconnection with radio-relay links J.70J.79 Digital transmission of television signals J.80J.89 Ancillary digital services for television transmission J.90J.99 Operational req
5、uirements and methods for television transmission J.100J.109 Interactive systems for digital television distribution J.110J.129 Transport of MPEG-2 signals on packetised networks J.130J.139 Measurement of the quality of service J.140J.149 Digital television distribution through local subscriber netw
6、orks J.150J.159 IPCablecom J.160J.179 Miscellaneous J.180J.199 Application for Interactive Digital Television J.200J.209 For further details, please refer to the list of ITU-T Recommendations. ITU-T J.182 (03/2001) i ITU-T Recommendation J.182 Parameter sets for analogue interface specifications for
7、 the interconnection of set-top boxes and presentation devices in the home Summary This Recommendation defines the parameter sets for analogue interface specifications for video signals between television set-top boxes and television presentation devices in the home, when such signals are provided i
8、n analogue component video form carried on three parallel channels. This Recommendation has three appendices (I, II, and III), that provide specifications for: 525-line (total scan lines) TV devices (i.e. with 480 active lines), and 750-line TV devices (720 active lines), and 1125-line TV devices (1
9、080 active lines). This reflects the fact that a number of TV systems are in use on a worldwide basis and it is necessary to define parameter sets for the associated devices. Appendix IV describes the interface between digital tuner and television receiver using D-connector selected from EIAJ CP-412
10、0. Source ITU-T Recommendation J.182 was prepared by ITU-T Study Group 9 (2001-2004) and approved under the WTSA Resolution 1 procedure on 9 March 2001. Figures I.2 to I.4, II.3, II.4, III.1 to III.6 of ITU-T Recommendation J.182 are extracted form SMPTE standards with the kind permission of the Soc
11、iety of Motion Picture and Television Engineers. ii ITU-T J.182 (03/2001) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T
12、is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study
13、by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a col
14、laborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or impl
15、ementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development proces
16、s. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementors are cautioned that this may not represent the latest information and are therefore strongly
17、urged to consult the TSB patent database. ITU 2001 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from ITU. ITU-T J.182 (03/2001) iii CONTENTS Pa
18、ge 1 Scope. 1 2 Normative references 1 3 Informative references 1 4 Bibliography . 1 5 Recommendation 2 Appendix I Analogue component parallel video interfaces for 525-line interlaced and progressive scanning structures 4 I.1 Introduction. 4 I.2 Copy protection. 4 I.3 Video components 4 I.3.1 Blanki
19、ng level 4 I.3.2 Signals . 4 I.3.3 Y, PB, PRcomponent set 4 I.4 Impedance. 5 I.5 Clamping and signal dc content 5 I.6 Component timing 5 I.7 Horizontal blanking and synchronization. 6 I.8 Vertical blanking and synchronization . 7 I.8.1 1H video format. 7 I.8.2 2H video vertical timing 8 I.9 Interfac
20、e characteristics 8 I.9.1 Cable impedance and channel numbering. 8 I.9.2 Signal sources 8 I.9.3 Signal amplitudes 8 I.9.4 Time coincidence. 8 I.10 Connector and cable 8 I.10.1 Connector. 9 I.10.2 Cable 9 I.11 Measurements . 9 Appendix II Analogue component parallel video interfaces for 480 active li
21、nes interlaced and progressive scanning structures 11 II.1 Introduction. 11 II.2 Copy protection. 12 II.3 Video components 12 II.3.1 Black level and blanking level. 12 iv ITU-T J.182 (03/2001) Page II.3.2 Signals . 12 II.3.3 Y, PB, PR component set 12 II.3.4 Measurements 13 II.4 Impedance. 13 II.5 C
22、lamping and signal dc content 13 II.6 Component timing 13 II.7 Horizontal blanking and synchronization. 13 II.8 Vertical blanking and synchronization . 14 II.8.1 480i video format. 14 II.8.2 480p video format 15 II.9 Interface characteristics 16 II.9.1 Cable impedance, channel numbering and signal .
23、 16 II.9.2 Signal source impedance and return loss. 16 II.9.3 Signal amplitudes 16 II.9.4 Time coincidence. 16 II.9.5 Receiving device designation 16 II.10 Connector specifications. 16 II.11 Cables 17 Appendix III Analogue component parallel video interfaces for 720 progressive active lines and 1080
24、 interlaced active lines scanning structures 19 III.1 Introduction. 19 III.2 Copy protection. 19 III.3 General 20 III.4 Scanning 20 III.4.1 Pixel frequency 20 III.4.2 Lines 20 III.4.3 Timing instants 20 III.4.4 Progressive systems. 20 III.4.5 Interlaced systems 20 III.5 System colorimetry. 21 III.5.
25、1 Colorimetric analysis and optoelectronic transfer . 21 III.5.2 Wide-gamut colour signals 21 III.5.3 Linear representation . 21 III.5.4 Computing non-linear primary components 21 III.5.5 Signal level range 21 III.5.6 Y computation 22 III.5.7 Colour-difference component signals 22 ITU-T J.182 (03/20
26、01) v Page III.6 Raster structures 22 III.6.1 Vertical timing. 22 III.6.2 Frame lines 22 III.6.3 Field lines 22 III.6.4 Blanking level 22 III.6.5 Clean aperture 22 III.6.6 Sample encroachment 23 III.7 Analogue synchronization 23 III.7.1 Analogue sync for the 720p systems . 23 III.7.2 Analogue sync f
27、or the 1080i systems 24 III.8 Electrical interface specifications (720p and 1080i). 25 III.8.1 Video specifications 25 III.8.2 Control signals. 26 III.8.3 User format designation. 26 III.9 Connector specifications. 26 III.10 Cables 26 III.11 Reference impedance 26 Appendix IV Interface between digit
28、al tuner and television receiver using D-connector selected from EIAJ CP-4120 31 IV.1 Scope. 31 IV.2 Terms and definitions . 31 IV.2.1 Video format identification signal lines 31 IV.2.2 Reserved lines 31 IV.2.3 Plug insertion detection . 31 IV.2.4 Representation of video format . 31 IV.3 Electrical
29、characteristics . 31 IV.3.1 Video signal. 31 IV.3.2 Video format identification signals . 33 IV.4 Video format identification lines 33 IV.5 Plug insertion detection 34 IV.6 Specifications of D-connector 35 IV.6.1 Feature and rating of D-connector. 35 IV.6.2 Pin assignment of D-connector 35 IV.7 Spec
30、ifications of D-connector cable . 35 IV.8 Marking of D-connector on television and digital tuner. 35 ITU-T J.182 (03/2001) 1 ITU-T Recommendation J.182 Parameter sets for analogue interface specifications for the interconnection of set-top boxes and presentation devices in the home 1 Scope This Reco
31、mmendation defines the characteristics of the interface between television set-top boxes and television presentation devices in the home, when such signals are provided in analogue component video form carried on three parallel channels for 60 Hz display. This Recommendation recognizes that televisi
32、on users in the home are likely to access television programmes, sound-broadcast programmes and other additional services from a variety of service providers that use a variety of delivery systems. For instance, a television user may access television programmes and sound programmes from a cable tel
33、evision network to which he is connected, from terrestrial broadcasting, from satellite broadcasting, from recorded material such as videocassettes, DVDs and CDs, or even from the Internet. Such programmes may be received in digital form or in analogue form, and they may be open, or may be subject t
34、o conditional access. Reception and presentation of this host of programmes in different formats require the use of a variety of demodulators and decoders. Such devices could be integrated into the home television receiver, but this condition is sometimes not viable due to constraints imposed by the
35、 marketplace. The present situation is that signals received on different delivery systems are often processed in different, dedicated “set-top boxes“ which provide outputs to the television and sound displays in a form that a normal television or sound display can understand, e.g. as analogue compo
36、nent or analogue composite signals. 2 Normative references The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendatio
37、ns and other references are subject to revision; all users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly pub
38、lished. ITU-R BT.709-4 (2000), Parameter values for the HDTV standards for production and international programme exchange. 3 Informative references EIAJ CP-4120, EIAJ Connector Type D. 4 Bibliography ANSI/SMPTE 125M-1995, Television Component Video Signal 4:2:2 Bit-Parallel Digital Interface. ANSI/
39、SMPTE 170M-1999, Television Composite Analog Video Signal NTSC for Studio Applications. 2 ITU-T J.182 (03/2001) ANSI/SMPTE 253M-1998, Television Three-Channel RGB Analog Video Interface. ANSI/SMPTE 274M-1998, Television 1920 1080 Scanning and Analog and Parallel Digital Interfaces for Multiple-Pictu
40、re Rates. ANSI/SMPTE 293M-1996, Television 720 483 Active Line at 59.94 Hz Progressive Scan Production Digital Representation. ANSI/SMPTE 296M-2001, Television 1280 720 Progressive Image Sample Structure Analog and Digital Representation and Analog Interface. ANSI/SMPTE RP 177-1993, Derivation of Ba
41、sic Television Colour Equations. CIE Publication 15.2 (1986), Colorimetry, Second Edition. 5 Recommendation It is recommended that the parameter sets defined in Table 1 should be used when interface signals are delivered from the output of the set-top box to the input of the home presentation device
42、 in analogue component video form on three parallel channels. ITU-T J.182 (03/2001) 3 Table 1/J.182 Parameter sets for analogue component video interface Television system 525/59.94(60)/2:1 525/59.94(60)/1:1 750/59.94(60)/1:1 1125/59.94(60)/2:1 Black level and blanking 0 V Signals to be used Y, PB,
43、and PRSynchronization pulse on/off selection Y with Sync Pulse, PB/PRwithout Sync Pulse Chromaticity coordinates (CIE, 1931) (See Note) x y Red 0.630 0.340 Green 0.310 0.595 Blue 0.155 0.070 x y Red 0.640 0.330 Green 0.300 0.600 Blue 0.150 0.060 Reference white x y D65 0.3127 0.3290 Opto-electronic
44、transfer characteristics at source V = 4.5 L for 0.018 L 0 V = 1.099 L0.45 0.099 for 1.00 L 0.018 where: L: luminance of the image 1 L 0 V: corresponding electrical signal Luminance and chrominance equations Y = 0.299R + 0.587G + 0.114B PB = (B Y)/1.772 PR= (R Y)/1.402 Y = 0.2126R + 0.7152G + 0.0722
45、B PB = (B Y)/1.8556 PR = (R Y)/1.5748 Signal amplitude for 100/100 colour bar Y: 0 to +714 mV Sync: 0 to 286 mV (Appendix I) Y: 0 to +700 mV Sync: 0 to 300 mV (Appendices II and IV) PB/PR: 350 mV Y: 0 to +700 mV PB/PR: 350 mV Sync: 0 to 300 mV (Appendix II) Y: 0 to +700 mV PB/PR: 350 mV Sync: 0 to 3
46、00 mV (Appendix III) Connector RCA phono connector with 75 (nominal) or EIAJ-D Connector (Appendix IV) Cable impedance 75 5 % NOTE Use of the unified colourimetry should be studied (see ITU-R BT.1361). 4 ITU-T J.182 (03/2001) APPENDIX I Analogue component parallel video interfaces for 525-line inter
47、laced and progressive scanning structures I.1 Introduction This appendix describes the main characteristics of home interconnection interfaces for two scanning structures, both capable of either 4:3 or 16:9 aspect ratios for: a scanning structure having 525 lines, 59.94 fields/s, 2:1 interlaced, and
48、 a horizontal scanning rate of 15.734 kHz (1H); a scanning structure having 525 lines, 59.94 frames per second, progressively scanned, and having a horizontal scanning rate of 31.47 kHz (2H). Both scanning structures are currently used in standard-definition television home displays. Signal characte
49、ristics are defined by a gamma-corrected component set: a luminance video and two accompanying colour-difference signals. I.2 Copy protection Users of this Recommendation should note that, at some future point, copy protection parameters, methods and/or standards are expected to be established with which copy-protected content traversing the component video interface should be required to comply. I.3 Video components I.3.1 Blanking level Blankin
