2 Revision history; 3 Limitations; 4 EDID data format; 5 EIA/CEA .. most notably with the −B revision (which was version 3 of the extension, adding. ii Obtained from GLOBAL ENGINEERING DOCUMENTS 15 Inverness Way E. CO () () < OPTION. 电子发烧友 电子技术论坛 EIA STANDARD EIA/CEAB A DTV Profile for Uncompressed.
|Published (Last):||11 July 2005|
|PDF File Size:||16.80 Mb|
|ePub File Size:||17.10 Mb|
|Price:||Free* [*Free Regsitration Required]|
If text, code page text, terminated if less than 13 bytes with LF and padded with SP. There are some additional requirements related to this new information.
This results in a factor of 10 variation in the Pixel Aspect Ratio. Some Cda-861b countries have 1. An example schematic with one master a microcontrollerthree slave nodes an ADCa DACand a eoaand pull-up resistor s Rp. Note that the order of the Data Blocks is not constrained. The source device then formats the picture and scales the horizontal resolution for proper display. Several of the video format timings old and new are available in two different picture aspect ratios.
Week of manufacture, or model year flag.
Advanced Timing and CEA/EIA-861B Timings
Thus, Xi is referred to as xi in Table 4, Xi is referred to as xi, Xp is referred to as Xp, and Xp is referred to as Xp. It is recommended that the DTV Monitor include a valid Speaker Allocation Data Block if it supports any type of digital audio on the interface, but this is not required. This section describes the types of InfoFrames that have been defined so far. Additional clock precision in 0. Audio InfoFrame Data Byte The format of the third byte is determined by the audio format code contained in the first byte.
It is sandwiched between two conducting plates. In either case the image was squeezed horizontally to fit the frame size. Ver 1 for extra byte descriptors. From Wikipedia, the free encyclopedia. Details of the requirements are found in the document text. Four of the possible seven tags have been defined: If needed, contents of the memory can be transferred to secondary storage. This aspect ratio of 2. This document is copyrighted by the EIA and may not be reproduced without permission.
As the processing power of cards has increased, so has their demand for electrical power. Delay line memory would be limited to a capacity of up to a few hundred thousand bits to remain efficient, two alternatives to the delay line, the Williams tube and Selectron tube, originated inboth using electron beams in glass tubes as means of storage.
Millions of individual LCD shutters, arranged in a grid, open, each shutter is paired with a colored filter to remove all but the red, green or blue portion of the light from the original white source. Uncompressed, two channel, digital audio.
It contains information that is useful eua communicating the name of the source device. CVT when Basic display parameters byte 24 bit 0 is setparameters as follows. Some of these, the liquid crystals, also show an alignment effect between the layers.
In that case, this bit specifies whether the preferred timing mode includes native pixel format and refresh rate. Similarly, System Information, program information, events, service descriptors, etc.
The coding shall be 8-bit coding scale of 0 to The method of indicating to the DTV Monitor the aspect eiaa and colorimetry in which the video should be displayed also applies.
Set-top boxes were made to enable closed captioning on older sets in North America.
Extended Display Identification Data – WikiVisually
The digital representation shall be as defined in Part 1, Section 6. Ratio of width to height dimension of the picture as delivered across the uncompressed digital interface, including any top, bottom, or side bars.
EDID structure versions range from cea-81b.
To be able to accommodate this extension and other extensions such as the extension containing additional detailed timing descriptorsa DTV Monitor may need to use E-DDC to be able to include more than one extension. Additionally, any HDTV Monitor complying with this standard shall also support either xi or xp with a If a Dual Aspect Ratio Eiia Monitor is receiving a video format timing for which it has declared support for both picture aspect ratios in EDID and the source device has indicated the picture aspect ratio by including the AVI in the video stream, then the DTV Monitor shall display the picture in the aspect ratio that has been indicated by the source device in the AVI.
Timing Parameters for Xi The Williams tube would prove to be frustratingly sensitive to environmental disturbances. For compressed audio streams, the sample size in Data Byte 2 cea-861h Table 20 is not applicable eix shall be set to In flight eis system booting up showing the Linux logo.
Common Active Formats active format Value Description illustration of described format 4: The first byte of the Data block payload consists of seven cea-86b and one reserved eiz. In that case, the EDID byte detailed timing descriptor could be modified to reflect the proper picture aspect ratio.
For the purpose of this standard, the signal is iea. The VGA format i. Additional clock precision in 0. Both are considered variations of the same format. Video formats with different picture aspect ratios are considered different formats that can be independently supported and discovered. The tag for this timing extension was previously reserved within VESA, but has now been assigned to CEA for the purposes of this standard. Default white point x and y value most significant 8 bits.
A video format is sufficiently defined such that when itis received at the DTV Monitor, the DTV Monitor has enough information to properly display the video to the user.