CEA 861B PDF

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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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. By such action, EIA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard or Publication.

This Standard does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. This document is copyrighted by the EIA and may not be reproduced without permission. Organizations may obtain permission to reproduce a limited number of copies through entering into a license agreement.

Reserved for Future Use Picture Aspect Ratio Conversion Example Timing parameters for xp Timing parameters for xi Timing Parameters for Xi Timing parameters for xp 50 Hz.

Extended Display Identification Data

Timing parameters for xi 50 Hz Timing Parameters for xi 50 Hz Timing Parameters for Xp Timing Parameters for Xp 50 Hz. Timing Parameters for Xi 50 Hz Timing Parameters for Xp 25 Hz. Example of options for format conversion Example of problem resulting from double stretch New B Video Format Timings all optional Summary of Video Format Requirements Formats new to this Standard B Valid Pixel Repeat Values for each video format timing Source Product Description InfoFrame format Audio InfoFrame Data Byte Synchronizing signal data for DVI General Format of InfoPacket List of InfoFrame Type Codes Some Typical Audio Applications Speaker allocation information to support multi-channel LPCM audio.

Several new InfoFrames to provide additional information about the source device and stream. It supports the transmission of digital audio if the specific interface supports digital audio. Like A, B is fully backward compatible with and requires the use of a backward compatible version of the interface used with e. In both of these cases, the system would have the same functionality as if both devices were only devices. The relationship of the various versions of is shown in Figure 1.

Note that the potential functionality of each link is set by the lowest version of on either side of the interface. The actual functionality depends on which options are implemented. Ver 1 Single AR support etc. Ver 2 Dual AR support etc. Vendor Unique Data optional Game formats Functionality Full A Functionality possible Full B Functionality possible Figure 1 Relationship of Different Versions of It is recommended that devices using the DTV profile defined in this standard incorporate a digital content protection system to ensure interoperability and provide protection for copy-protected content traversing uncompressed, digital, high-speed, baseband interfaces.

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At the time of this cae, there are two options for transmitting uncompressed 681b video to the DTV Monitor.

Advanced Timing and CEA/EIA-861B Timings

Newer physical interfaces that are expected to be backward compatible with DVI 1. These new interfaces can each be used separately to enable the full capabilities of this standard. The table is for summary purposes only. Details of the requirements are found in the document text.

Ver 1 for extra byte descriptors. If the DTV Monitor has provided a timing descriptor for a particular video format decoded in the source, it is recommended that the source send video across 8661b interface without performing format conversion. If for some reason the source cannot supply that format, the source should supply the next most preferred format, and so on to the last format advertised. The timing requirements for video formats are described along ceea requirements for video format discovery.

Also, a mechanism allowing the source device to discover all supported formats and the preferred formats of a DTV 81b is described.

Four basic video format timings from are defined in this document for countries using 60 Hz. Two are high definition formats xi, xpone is enhanced definition xpand the remaining one is standard definition Xi. Additionally, ceea new 60 Hz format timings have been added in this standard B. All of 681b new formats are optional. Their discovery is handled somewhat differently than the previously defined formats due to the desire ca reduce the number of bytes used to discover formats and at the same time maintain backward compatibility with and A.

Several of the xea format timings old and new are available in two different picture aspect ratios. A method of indicating to the DTV Monitor the picture aspect ratio and colorimetry in which the video should be displayed is included.

Several of the new video formats are game formats. These formats have pixels per line in the transmitted form, but the number of pixels displayed is less based on a pixel repeat field. For countries using 50 Hz systems, four similar video format timings from A have also been defined in this document. Two are high definition formats xi, xpone is enhanced definition xpand one is standard definition Xi. Additionally, six new 50 Hz format timings have been added in this standard B.

Several of the video format timings old and new are available in two different picture aspect ratios. The method of indicating to the DTV Monitor the aspect ratio and colorimetry in which the video should be displayed also applies.

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Several of these new 50 Hz formats are also game formats.

An additional format added to B is a version based on a film frame rate Xp 24Hz. This format is available in only The ability to send colorimetry and picture aspect ratio information to the DTV was added in A. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards listed in Sec. If the referenced standard is dated, the reader is advised to use the version specified.

United States of America? References listed below shall take precedence over references within these listed references. Some of these documents are drafts of standards that may become normative references in a future release of this standard. General, First Edition, Consumer Applications, First Edition, Audio, Second Edition, Active Format Description A data structure that describes what portion of the picture actually contains useful information i.

It is standardized in DVB, and is partially adopted in this standard. Additional information defined in this standard related to the video being sent from a source device to a DTV Monitor. Region of the display screen that is being driven or scanned at either zero luminance or at a uniform luminance; or regions of a picture that are intended to be driven e.

In other words, it is the portion of the picture that does not contain useful information. Uncompressed, two channel, digital audio. Exact parameters are determined by the interface specification used with this standard e.

This standard B specifies new requirements for the use of this timing extension see Section 7. A device that receives, decodes, and presents audio and video material that has been transmitted in a compressed form. The device can be a single unit or it can be constructed from a number of individual components e.

A DTV Monitor can also be any combination of these terms. A DTV Monitor that simultaneously supports both picture aspect ratios of a video format timing e. Simultaneous support is signified by listing both formats in the EDID data structure at the same time. A video monitor capable of displaying xp in The timing associated with a single frame of video.

A video monitor capable of displaying Xi or Xp video in its native format on a InfoFrames are specific to the type of information e. Various InfoFrames are described in Section 6.

Eia ceab download

A data transfer structure for sending miscellaneous information from a source device to a DTV monitor over an B interface. This structure first appeared in A. The general structure is shown in Annex G.