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                                        1.
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                                        Clear description of the referenced document:
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                                                    Name:
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                                                    ANSI/SCTE 54 2009
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                                                    Title:
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                                                    Digital Video Service Multiplex and Transport System Standard for Cable Television
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                                        2.
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                                        Status of approval:
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                                        Approved Standard
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                                        3.
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                                        Justification for the specific reference:
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                                        This document describes the transport subsystem characteristics and normative specifications of the in-band Service Multiplex  and Transport Subsystem Standard for Cable Television.
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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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                                        The standard is implemented and widely deployed
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                                        6.
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                                        The degree of stability or maturity of the document:
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                                        See item 5.
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                                        7.
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                                        Relationship with other existing or emerging documents:
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                                        None known
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                                        8.
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                                        Any explicit references within that referenced document should also be listed:
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                                        1. ANSI/SCTE 07 2006 , Digital Video Transmission Standard for Cable Television. / 
2. ATSC A/52A (2001), Digital Audio Compression (AC-3). / 
3. ATSC A/53B (2001), ATSC Digital Television Standard.  / 
4. ATSC A/65A (2000), Program and System Information Protocol (PSIP) for Terrestrial Broadcast and Cable. / 
5. ATSC A/90 Data Broadcast Standard (2000). / 
6. CEA-708-B, Digital Television (DTV) Closed Captioning (1999) / 
7. EIA/CEA-766-A (2000), U.S. and Canadian Rating Region Tables (RRT) and Content Advisory Descriptors for Transport of Content Advisory Information Using ATSC A/65A Program and System Information Protocol (PSIP). / 
8. ISO/IEC IS 13818-1, (2000), “Information Technology—Generic coding of moving pictures and associated audio—Part1: Systems.” / 
9. ISO/IEC IS 13818-2, (2000), “Information Technology—Generic coding of moving pictures and associated audio—Part 2: Video.” / 
10. ISO/IEC 13818-6, (1998), “Information Technology—Generic coding of moving pictures and associated audio—Part 6: Digital Storage Media Command & Control,” Chapter 2, 4-7, 9, 11.  / 
11. ANSI-J-STD-042-2002, Emergency Alert Message for Cable. / 
12. ANSI/SCTE 19 2006 , Standard Methods for Isochronous Data Services Transport. / 
13. ANSI/SCTE 27 2003 , Subtitling Methods for Broadcast Cable. / 
14. ANSI/SCTE 53 2008 , Methods for Asynchronous Data Services Transport. / 
15. ANSI/SCTE 42 2008, IP Multicast for Digital MPEG Networks. 
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                                        9.
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                                        Qualification of
                                        SCTE:
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                                        SCTE is recognized under the provisions of ITU-T Recommendation A.5. Qualifying information is on file with TSB.
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                                        10.
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                                        Other (for any supplementary information):
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                                        None
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