电子发烧友 电子技术论坛 EIA STANDARD EIA/CEAB A DTV Profile for Uncompressed. Advanced Timing and CEA/EIAB Timings. NOTE: To use the Advanced Timing page, you must be an advanced user and familiar with the concepts of. The newly adopted EIA/CEAB (B) standard defines protocols for sending DTV signals over an uncompressed digital video interface.

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The tag for this timing extension was previously reserved within VESA, but has now been assigned to CEA for the purposes of this standard. CBCR signals shall have quantization levels with a zero level corresponding to digital level and the full range corresponding with 16 to In the previous version of this standard i. It is standardized in DVB, and is partially adopted in this standard. The optional A formats i. In this standard Bpixel repeat information cfa with the new formats has been added.

These requirements will be spelled out in the various sections on each infoFrame, but the specific format of EDID will be covered in Section 7. FR0 can be used to designate whether a field is a repeated field or not. Table 2 summarizes display requirements specified by this standard. Timing Parameters for Xp 25 Hz. This data block can be used to include information not specifically defined in this standard. The digital representation shall be as defined in Part 1, Section 6.

In that case, the EDID byte detailed timing descriptor could be modified to reflect the proper picture aspect ratio. The 8 bytes of bar data are present in the AVI cda their information is valid or not.

Eia cea-861b

Existence of such Standards and Publications shall not in any respect preclude any member or nonmember of EIA from manufacturing or selling products not conforming to such Standards and Publications, nor shall the existence of such Standards and Publications preclude their voluntary use by those other than EIA members, whether the standard is to be used either domestically or internationally.


Simultaneous support is signified by listing both formats in the EDID data structure at the same 81b. These physical interfaces can be used to implement this standard with reduced functionality i.

In those cases, the same basic mechanism applies i. Valid Pixel Repeat Values for each video csa timing The number of times that the pixel is ca is sent to the DTV Monitor by the source device.

This document is copyrighted by the EIA and may not be reproduced without permission. The last timing extension may contain less than six byte descriptors.

Extended Display Identification Data – Wikipedia

Therefore, in this standard the pixel repeat value can vary from 1 to A device that receives, decodes, and presents audio and video material that has been transmitted in a compressed form. These physical interfaces cda be used to implement the full capabilities of this standard. Use of this information by the DTV Monitor is optional. Pixel Number of End of Left Bar – An unsigned integer value representing the last horizontal pixel of a vertical pillar-bar area at the left side of the picture.

Several of these new 50 Hz formats are also game formats. The most recent version, CTAG, [11] originally published in Novemberwas made available for free in November after some necessary fea due to a trademark complaint. The DTV Monitor signifies that a speaker, or pair of speakers, is present by setting the bit associated with that speaker or pair of speakers to one. The format of this descriptor is determined by the owner of the Registration ID used at that beginning of the block.

List of InfoFrame Type Codes 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. Ver 1 for extra byte descriptors. It describes aspects of the compressed 86b1 stream xea were used to produce the uncompressed video. A field that can be used to identify the video format has also been added i.


Articles lacking reliable references from February All articles lacking reliable references All articles with unsourced statements Articles with unsourced statements from October Wikipedia articles needing clarification from June Wikipedia articles needing clarification from October All articles with specifically marked weasel-worded phrases Articles with cfa marked weasel-worded phrases from January For that reason, they are treated as the same video format with a slight variation in the parameters i.

Cez DTV Monitors that simultaneously support formats available in different aspect ratios e. This implies that these formats will not be supported in implementations that do not also support reception of the AVI Ca Version 2.

Formats new to this Standard B Format num. Bar Info valid Horiz. Thus, the clock is 27 MHz. The number of vertical pixels is calculated from the horizontal resolution and the selected aspect ratio. There are two possible frame formats that differ only in the number of lines in the vertical blanking interval of the frame. In most cases, the video format can be uniquely determined from the video format timing itself.

The data applies to the audio associated with the next full frame of video data. Audio Format Codes Codes cda 1 2 3 4 5 6 7 8 This page was last edited on 10 Decemberat This tag code designates the format of the bytes that follow.

Note that the actual mechanism for carrying this information is different depending on the actual digital interface being used9. Like A, B is fully backward compatible with and requires the use of a backward compatible version of the interface used with e.

Extended Display Identification Data

United States of America? The new B low-resolution progressive video format timings can consist of one of several frame formats i. Versions prior to 1.