Data Services on the Component Video Interfaces
|Publication Date:||1 October 2000|
This standard specifies how Data Services are carried on Component Video Interfaces (CVI), as described in EIA-770.1-A (for 2H 480p signals only), EIA-770.2-A (for 2H 480p signals only) and EIA- 770.3-A. This standard applies to all CE devices carrying data services on the CVI vertical blanking interval (VBI). This standard does not apply to signals which originate in 1H 480I, as defined in EIA- 770.1-A and EIA-770.2-A.
The first data service defined in this standard is Copy Generation Management System (CGMS) information. This standard addresses the signal format and data structure of the CGMS information when carried by means of the VBI of standard definition progressive and high definition YPBPR-type component video signals. It is also intended to be usable when the YPBPR signal is converted into other component video interfaces including RGB and VGA.
This standard is designed to be extensible to future data services, and even future higher bandwidth data services.
In addition, see Annex A (Informative) for information concerning data integrity during signal format conversions.