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JJF 1742-2019: Calibration Specification for High Definition Video Signal Generators
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Calibration Specification for High Definition Video Signal Generators
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JJF 1742-2019
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Basic data | Standard ID | JJF 1742-2019 (JJF1742-2019) | | Description (Translated English) | Calibration Specification for High Definition Video Signal Generators | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A56 | | Classification of International Standard | 17.220 | | Word Count Estimation | 61,686 | | Date of Issue | 2019 | | Date of Implementation | 2019-12-27 | | Issuing agency(ies) | State Administration for Market Regulation | JJF 1742-2019: Calibration Specification for High Definition Video Signal Generators---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Calibration Specification for HD Video Signal Generator)
National Metrology Technical Specifications of the People's Republic of China
HD video signal generator calibration specification
2019-09-27 released
2019-12-27 Implementation
Issued by the State Administration for Market Regulation
HD video signal generator
Calibration specification
Focal point. National Radio Metrology Technical Committee
Main drafting unit. The Fifth Institute of Electronics, Ministry of Industry and Information Technology
China Institute of Metrology
Participating in the drafting. The Third Research Institute of China Electronics Technology Group Corporation
This specification entrusts the National Radio Measurement Technical Committee to be responsible for the interpretation
The main drafters of this specification.
Guan Guangdong (The Fifth Institute of Electronics, Ministry of Industry and Information Technology)
Wang Yong (The Fifth Institute of Electronics, Ministry of Industry and Information Technology)
Wu Zhaochun (China Institute of Metrology)
Participating drafters.
Yang Qiaoxin (The Fifth Institute of Electronics, Ministry of Industry and Information Technology)
Liu Lei (The Third Research Institute of China Electronics Technology Group Corporation)
Liu Zheng (China Institute of Metrology)
Gao Hongying (China Institute of Metrology)
table of Contents
Introduction (Ⅱ)
1 scope (1)
2 Reference documents (1)
3 Terms and measurement units (1)
4 Overview (1)
5 Measurement characteristics (2)
5.1 RGB analog primary color video image signal (2)
5.2 YPBPR analog component video image signal (3)
5.3 Synchronization signal (5)
5.4 Drive signal (5)
6 Calibration conditions (6)
6.1 Environmental conditions (6)
6.2 Measurement standards and other equipment (6)
7 Calibration items and calibration methods (7)
7.1 Calibration items (7)
7.2 Appearance and working normality inspection (7)
7.3 RGB analog primary color video image signal (7)
7.4 YPBPR analog component video image signal (10)
7.5 Synchronization signal(12)
7.6 Drive signal(14)
8 Calibration result expression (15)
9 Re-calibration interval (16)
Appendix A Original Record Format (17)
Appendix B Internal page format of calibration certificate (32)
Appendix C Evaluation Example of Measurement Uncertainty (47)
Appendix D HD video signal definition (52)
Introduction
This specification is based on JJF 1071-2010 "Rules for the Compilation of National Metrology and Calibration Specifications" and JJF 1059.1-2012
"Evaluation and Expression of Measurement Uncertainty" was compiled.
This specification mainly stipulates the calibration method of HD video signal generator with analog component output.
This specification refers to GB 3659-1983 "TV Video Channel Test Method", SJ/T 11332 "Digital TV Receiver
Equipment Interface Specification Part 6.RGB Analog Primary Color Video Signal Interface", SJ/T 11333 "Digital TV Reception
Equipment Interface Specification Part 7.YPBPR Analog Component Video Signal Interface" and other currently valid versions.
In Appendix C, calibration items such as high-definition video level, inter-channel delay, signal-to-noise ratio, driving signal amplitude, etc. are given
Example of evaluation of measurement uncertainty. The definition of high-definition video signal is given in Appendix D, including. signal system
The definition of formula, signal conversion and image signal waveform.
This specification is released for the first time.
HD video signal generator calibration specification
1 Scope
This specification applies to the calibration of high-definition video signal generators with analog component output.
2 Reference documents
This specification refers to the following documents.
GB 3659-1983 TV video channel test method
SJ/T 11332 Digital TV receiving equipment interface specification Part 6.RGB analog primary color video signal
interface
SJ/T 11333 Digital TV receiving equipment interface specification Part 7.YPBPR analog component video signal
interface
For dated reference documents, only the dated version applies to this specification; for undated references
The latest version (including all amendments) is applicable to this specification.
3 Terms and units of measurement
3.1 RGB analog element video signal RGB analogelementvideosignal
Red (R), green (G), blue with the same bandwidth, with or with additional synchronization information, synchronized with each other, gamma-corrected
(B) Three primary color analog video signals.
3.2 YPBPR analog component video signal YPBPRanalogcomponentvideosignal
Y, PB, and PR signals are brightness signal (Y), blue difference signal (BY) and red difference signal (RY) respectively
The analog signal obtained by multiplying the amplitude value of a scale factor. At least the Y signal contains a sync pulse signal.
3.3 Bipolar three-level synchronizing pulse signal
A synchronization signal composed of negative and positive pulses and 0 level.
The tick corresponds to the scan synchronization timing reference.
3.4 video signal-to-noise ratio videosignaltonoiseratio
The ratio of the video signal level value to the effective value of the noise amplitude is calculated according to formula (1).
S/N=20×lg
Nrms
(1)
Where.
S/N---Video signal-to-noise ratio, dB;
V---Video signal level value, take 700mV;
Nrms---the effective value of the noise amplitude, mV.
4 overview
The high-definition video signal generator can generate various high-definition video image test signals, including color bar signals, ladder signals
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