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D2:
A composite digital video recording format that uses data conforming to SMPTE 244M. Records
on 19 mm magnetic tape. (Often used incorrectly to refer to composite digital video.)
D3:
A composite digital video recording format that uses data conforming to SMPTE 244M. Records
on 1/2" magnetic tape.
EBU (European Broadcasting Union):
activities provides technical recommendations for the 625/50 line television systems.
EBU TECH 3267-E: The EBU recommendation for the parallel interface of 625 line digital video signal.
This is a revision of the earlier EBU Tech 3246-E standard that was in turn derived from CCIR-
601.
EDH: Error Detection and Handling (EDH) is defined in SMPTE RP-165 as a method of determining
when bit errors have occurred along the digital video path. According to RP-165, two error
detection checkwords are used, one for active picture samples, and the other on a full field of
samples. Three sets of flags are used to convey information regarding detected errors, to
facilitate identification of faulty equipment or cabling. One set of flags is associated with each
checkword, and the third is used to evaluate ancillary data integrity. The checkwords and flags
are combined into a special error detection data packet that is included as ancillary data in the
serial digital signal.
EMBEDDED AUDIO: Digital audio is multiplexed onto a serial digital video data stream.
ITU:
The United Nations regulatory body governing all forms of communications. ITU-R (previously
CCIR) regulates the radio frequency spectrum, while ITU-T (previously CCITT) deals with the
telecommunications standards.
ITU-R601:
See CCIR601
PIXEL: The smallest distinguishable and resolvable area in a video image. A single point on the screen.
In digital video, a single sample of the picture. Derived from the words picture element.
RESOLUTION:
The number of bits (four, eight, ten, etc.) determines the resolution of the signal.
Eight bits is the minimum resolution for broadcast television signals.
4 bits = a resolution of 1 in 16.
8 bits = a resolution of 1 in 256.
10 bits = a resolution of 1 in 1024.
SERIAL DIGITAL:
Digital information that is transmitted in serial form. Often used informally to refer to
serial digital television signals.
SMPTE (Society of Motion Picture and Television Engineers): A
recommends standards for the film and television industries.
SMPTE 125M:
The SMPTE standard for bit parallel digital interface for component video signals.
SMPTE 125M defines the parameters required to generate and distribute component video
signals on a parallel interface.
OVERVIEW
HD9510UC High Definition Upconverter Manual
An organisation of European broadcasters that among other
Revision 1.1.1
professional
organisation
that
Page 1-5
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