Model 8010TM SDI Time Code Master Manual
Page 1-4
Revision 1.5.1
OVERVIEW
EBU:
European Broadcasting Union. EBU is an organization of European broadcasters that
among other 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, which was in turn
derived from ITU-R601.
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 according
to the SMPTE 272M (standard definition) or SMPTE 299M (high definition) standards.
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:
An international standard for component digital television from which was derived
SMPTE 125M and EBU 3246-E standards. ITUR-601 defines the sampling systems,
matrix values and filter characteristics for both Y, B-Y, R-Y and RGB component digital
television signals. This document was formerly known as CCIR-601 and may be referred
to informally as 601 or Rec 601.
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 (SDI):
Serial Digital Interface a standardized interface for transmitting digital
television signals using a coaxial cable in serial form. Often used informally to refer to
the 4:2:2 sampled standard definition serial digital television signals as specified in
SMPTE 259M.
SMPTE:
Society of Motion Picture and Television Engineers. SMPTE is a professional
organization that recommends standards for the film and television industries. Evertz is
a sustaining member of this engineering organization.
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