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HDMI test standards
HDMI test norms regulating details please refer to: "HDMI compliance testing standard 1.1", "HDMI standard 1.1", "HDCP standard 1.1";
1, HDMI output compatibility test:
1)TV and HDMI interface compatibility: At the same time audio and video transmission;
2)TV and DVI interface compatibility: only transmit video;
3)And HDMI interface amplifier compatibility: only audio transmission;
Criteria for judging: HDMI interface can transmit audio support "any through S / PDIF output of digital audio compression" and "2/6/8 channel ,32-192 KHZ sampling rate of uncompressed digital audio," can be exported "I2S (A digital transmission interface, the time difference is superior performance of S / PDIF, suitable for short-distance communications) and SPDIF audio "It always get the CD audio quality; HDMI interface can support the transmission of video," HD 1080 I "," high-definition 720P "," general interlaced "and" the general line by line "(the latter two at present we do not support), while support for NTSC and PAL TV standards; based on the receiving end can accept the state of automatic video output" YUV "or" RGB "Coding The video formats;
2, HDMI port plug reliability test:
1) Hot-swappable interface reliability: in the drive and the receiving end are the work of the state, the plug HDMI interface, the ends of the equipment is working properly, HDMI output of audio and video functions are normal;
2) ESD test;
3) Interface plug life test: HDMI interface plug on many occasions, testing HDMI interface life; criteria: hot-swappable at the receiving end to the normal output HDMI audio and video signals, the source end system still needs work; interface plug at least life More than 5,000;
3, HDMI output reliability test:
1)Source output drive capability testing;
2)Cable attenuation of the test;
3)High-frequency and high-capacity data transmission reliability;
Criteria: the longest transmission can be 30 meters, and ensure sound image normal large-capacity DVD (more than subtitles, multi-channel) disc player screen fluency;
4)Start-up, standby, HDMI output is normal.
4, HDMI interface cable and the testing standards:
Please refer to HDMI interface and cable supplier of testing standards;
5, Under normal working conditions of non-HDMI port output test:
1) High and low status:
2) High and low voltage status:
3) Long working hours of state:
Criteria: specific temperature, voltages and working hours of the general parameters of reference drive in the state, the need for the audio and video HDMI interface functions work properly;
6, HDMI output ports function tests:
1) HDMI port supports 1080 I, 720P high-definition video format output;
2) HDMI port supports a variety of compressed and uncompressed digital audio output;
3)Automatic detection equipment to accept the screen ratio;
criteria: the same source of the film, HDMI high-definition output images should be color than CVBS and the general "more clearly, without blinking, details on the performance of the stronger, more vivid colors" (Can use high-definition DVD JPEG images or effects demo discs to demo), if accepted by the television equipment can decode the digital audio output HDMI signals, the receiving end should have the voice output; HDMI outputs can automatically adjust output to the aspect ratio To accept a
Preparation;
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