HD9084 HDTV Caption Encoder Manual
GLOSSARY
Page 7-1
7.
GLOSSARY
7.1.
GLOSSARY OF STANDARDS
CEA (Consumer Electronics Association):
CEA is a professional organization that recommends
standards and practices for the U.S. consumer electronics industry.
CEA-608:
This CEA standard serves as a technical guide for those providing encoding
equipment and/or decoding equipment to produce material with encoded data
embedded in Line 21 of the vertical blanking interval of the NTSC video signal. It is
also a usage guide for those who will produce material using such equipment
CEA-708:
Defines the coding of DTV closed captions (DTVCC) as they are delivered in an ATSC
signal, and also defines the Caption Distribution Packet (CDP). This structure contains
fields that can hold: CEA-608-B data for use if the video is converted to standard
definition analog; DTV captions for use in an ATSC program; Caption Descriptors; and
Time Code. The CDP is the basic unit of data that is transported through the
professional portion of a DTV plant. As such, it is central to the methods discussed in
this document.
SMPTE (Society of Motion Picture and Television Engineers):
A professional organization that
recommends standards for the film and television industries.
SMPTE 12M-1:
The SMPTE standard for the Time and Address Control signal in widespread use in the
professional video and audio industries. SMPTE 12M-1 defines the specifications for
both Linear Time Code (LTC) and Vertical Interval Time Code (VITC).
SMPTE 12M-2:
The SMPTE Recommended Practice for transmitting Time code in the ancillary data
space of serial digital television signals
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.
SMPTE 244M:
The SMPTE standard for bit parallel digital interface for composite video signals.
SMPTE 244M defines the parameters required to generate and distribute composite
video signals on a parallel interface.
SMPTE 259M:
The SMPTE standard for 525 line serial digital component and composite interfaces.
SMPTE 269M:
This SMPTE standard defines an opto-isolated fault tally output signal for connecting to
user-defined equipment such as warning indicators.
SMPTE 291M:
Defines the method of multiplexing ancillary data such as audio and captions to 292M
and 259M-C signals.
SMPTE 292M:
Defines the serial interface that is used for carriage of HDTV video signals. It and its
standard definition equivalent 259M-C provide a standard transport mechanism, not
only for the video signal, but also for digitized audio and data such as captions.
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