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{{Table Digital video broadcast standards}}
'''Advanced Television Systems Committee''' ('''ATSC''') '''standards''' are an
The ATSC standards were developed in the early 1990s by the [[Grand Alliance (HDTV)|Grand Alliance]], a consortium of electronics and telecommunications companies that assembled to develop a specification for what is now known as [[HDTV]]. The standard is now administered by the [[Advanced Television Systems Committee]]. It includes a number of [[patent]]ed elements, and licensing is required for devices that use these parts of the standard. Key among these is the [[8VSB]] modulation system used for [[Terrestrial television|over-the-air]] broadcasts. ATSC 1.0 technology was primarily developed with patent contributions from [[LG Electronics]], which held most of the patents for the ATSC standard.<ref name="atsc-patents"/>
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=== North America ===
*{{flagcountry|Bermuda}} March 9, 2016<ref>https://en.wikipedia.org/wiki/ZFB-TV#cite_note-bernews.com-1</ref>, after initially announcing [[DVB-T]] (on 10 July 2007)<ref>{{cite web|url=http://www.dvb.org/about_dvb/dvb_worldwide/bermuda/index.xml|title=About – DVB|access-date=26 June 2016|archive-url=https://web.archive.org/web/20130901023746/http://dvb.org/about_dvb/dvb_worldwide/bermuda/index.xml|archive-date=1 September 2013|url-status=dead}}</ref>
*{{flagcountry|Antigua & Barbuda|Antigua}} 2018
*{{flagcountry|Bahamas}} On December 14, 2011, the Bahamas' national public broadcaster [[ZNS-TV]] announced that it would adopt ATSC, in line with the United States and its territories.<ref>[http://www.thebahamasinvestor.com/2011/bahamas-national-tv-to-get-multi-million-dollar-digital-upgrade-video/ Bahamas national TV to get multi-million dollar digital upgrade – video] {{webarchive|url=https://web.archive.org/web/20140413131013/http://www.thebahamasinvestor.com/2011/bahamas-national-tv-to-get-multi-million-dollar-digital-upgrade-video/ |date=April 13, 2014 }}. The Bahamas Investor. Retrieved on May 11, 2014.</ref>
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== Patent holders ==
The following organizations held [[patent]]s for the development of ATSC 1.0 technology, as listed in the [[patent pool]] administered by [[MPEG LA]]. The latest patents expired on 16 September 2024.<ref name="atsc-patents">{{cite web |title=ATSC Patent List |url=https://www.via-la.com/wp-content/uploads/Final-July-1-2024-ATSC-Attachment-1.pdf |website=[[MPEG LA]] |archive-url=https://web.archive.org/web/20240801130217/https://www.via-la.com/wp-content/uploads/Final-July-1-2024-ATSC-Attachment-1.pdf |access-date=21 September 2024|archive-date=August 1, 2024 }}</ref>
{| class="wikitable"
!Organizations<ref>{{cite web |title=Licensors Included in the ATSC Patent Portfolio License |url=https://www.mpegla.com/programs/atsc/licensors/ |website=[[MPEG LA]] |access-date=11 July 2019}}</ref>
!Total patents (all expired)<ref name="atsc-patents"/>
|-
|[[LG Electronics]]
|354
|-
|[[Zenith Electronics]]
|54
|-
|[[Panasonic]]
|50
|-
|[[Samsung Electronics]]
|25
|-
|[[Columbia University]]
|16
|-
|[[Mitsubishi Electric]]
|14
|-
|[[JVC Kenwood]]
|6
|-
|[[Cisco Systems|Cisco Technology, Inc.]]
|4
|-
|Vientos Alisios Co., Ltd.
|1
|-
|[[Philips]]
|1
|}
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