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1.
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Clear description of the referenced document:
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Name:
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CEA-608-C
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Title:
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Line 21 Data Services (August 2005)
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2.
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Status of approval:
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This is an approved document by CEA (Consumer Electronics Association).
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3.
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Justification for the specific reference:
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This document defines a technical standard and guide for using or providing Closed Captioning services or other data services embedded in line 21 of the vertical blanking interval of the NTSC video signal. This technology constitutes a part of this Recommendation as functionality to be equipped in a terminal.
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4.
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Current information, if any, about IPR issues:
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No known issues.
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5.
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Other useful information describing the "Quality" of the document:
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This document provides an initial industry consensus view on the closed captioning architecture to support broadcast services, especially in the U.S.
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6.
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The degree of stability or maturity of the document:
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CEA-608-C is a stable document.
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7.
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Relationship with other existing or emerging documents:
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CEA-608-C is a stable document
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8.
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Any explicit references within that referenced document should also be listed:
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CEA-542-B, Cable Television Channel Identification Plan, July 2003/
ECMA 262, Script language specification (June, 1997)/
FIPS PUB 6-4, Counties and Equivalent Entities of the United States, Its Possessions, and Associated Areas, 8/31/90/
IEC 61880-2: (2002-09) Video System (525/60) Video and Accompanied Data Using the Vertical Blanking Interval -- Part 2 525 Progressive Scan System/
IEC 61880: (1998-01), Video System (525/60) Video and Accompanied Data Using the Vertical Blanking Interval -- Analogue Interface/
ANSI/IEEE 511:1979, Standard on Video Signal Transmission Measurement of Linear Waveform Distortion/
IETF RFC 791, Internet Protocol: DARPA Internet Program—Protocol Specification/
IETF RFC 1071, Computing the Internet Checksum/
IETF RFC 1738, Uniform Resource Locators (URL), (December, 1984)/
ISO-8859-1: 1987, Information processing—8-bit single-byte coded graphic character sets – Part 1: Latin alphabet No. 1/
ISO-8601: 1988, Data elements and interchange formats - Information interchange - Representation of dates and times
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9.
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Qualification of
CTA:
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SG9 requested in 2007-11 and TSB Dir approved A5 in 2007-12
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10.
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Other (for any supplementary information):
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NONE
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