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Difference between revisions of "Mp3"

(→‎Final expiration: 2017: fix patent (remove template))
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==Final expiration: 2017==
 
==Final expiration: 2017==
  
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From Wikipedia's article (including the references):
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From Wikipedia's article<ref>https://en.wikipedia.org/wiki/MP3#Licensing_and_patent_issues</ref> (including the references):
  
 
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<blockquote>
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The various MP3-related patents expire on dates ranging from 2007 to 2017 in the U.S.<ref name=big-list>{{cite web |title=A Big List of MP3 Patents (and supposed expiration dates) |url=http://www.tunequest.org/a-big-list-of-mp3-patents/20070226/ |work=tunequest |date=26 February 2007}}</ref> The initial near-complete MPEG-1 standard (parts 1, 2 and 3) was publicly available on December 6, 1991 as ISO CD 11172.<ref>[Performance of a Software MPEG Video Decoder, Ketan Patel, Brian C. Smith, and Lawrence A. Rowe, ACM Multimedia 1993 Conference, http://bmrc.berkeley.edu/research/mpeg/software/Old/Mpeg93.ps.gz Berkeley.edu]{{Dead link|date=November 2009}}</ref><ref>[http://bmrc.berkeley.edu/research/mpeg/software/Old/mpegfa31.txt Berkeley.edu]{{Dead link|date=November 2009}}</ref> In the United States, patents cannot claim inventions that were already publicly disclosed more than a year prior to the filing date, but for patents filed prior to June 8, 1995, [[submarine patent]]s made it possible to extend the effective lifetime of a patent through application extensions. Patents filed for anything disclosed in ISO CD 11172 a year or more after its publication are questionable; if only the known MP3 patents filed by December 1992 are considered, then MP3 decoding may be patent free in the US by September 2015 when US5,812,672 expires which had a PCT filing in Oct 1992.<ref>{{cite web | url = http://www.kuro5hin.org/story/2008/7/18/232618/312 | title = Patent Status of MPEG-1, H.261 and MPEG-2 | work = [[Kuro5hin]] | first = Josh | last = Cogliati | date = 20 July 2008}} This work failed to consider patent divisions and continuations.</ref><ref>[http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=5812672 US5812672]</ref><ref>[http://www.osnews.com/story/24954/US_Patent_Expiration_for_MP3_MPEG-2_H_264]</ref>
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An exception is the United States, where patents filed prior to 8 June 1995 expire 17 years after the publication date of the patent, and a loophole known as [[submarine patent]]s that makes it possible to extend the effective lifetime of a patent through application extensions. The various MP3-related patents expire on dates ranging from 2007 to 2017 in the U.S.<ref name=big-list>{{cite web |title=A Big List of MP3 Patents (and supposed expiration dates) |url=http://www.tunequest.org/a-big-list-of-mp3-patents/20070226/ |work=tunequest |date=26 February 2007}}</ref> Patents filed for anything disclosed in ISO CD 11172 a year or more after its publication are questionable; if only the known MP3 patents filed by December 1992 are considered, then MP3 decoding may be patent-free in the US by September 2015 when {{US patent|5812672}} expires which had a PCT filing in Oct 1992.<ref>{{cite web | url = http://www.kuro5hin.org/story/2008/7/18/232618/312 | title = Patent Status of MPEG-1, H.261 and MPEG-2 | work = [[Kuro5hin]] | first = Josh | last = Cogliati | date = 20 July 2008}} This work failed to consider patent divisions and continuations.</ref><ref>[http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=5812672 US5812672]</ref><ref>http://www.osnews.com/story/24954/US_Patent_Expiration_for_MP3_MPEG-2_H_264</ref>
 
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Revision as of 09:09, 18 January 2014

mp3 is a format for audio. The MPEG-LA group and Sisvel (Philips) block developers from adding mp3 to their software packages.

Software harmed

The Fedora GNU/Linux operating system excludes mp3 due to patents, saying:

Fedora is unable to include encoding and decoding support for the MP3 format because it requires patented technologies and the patent holder has not provided licenses that are compatible with Fedora's requirements.[1]

sipXecs Open Source IP PBX does not include support for MP3 voicemail files due to patents on MP3 encoding and decoding.[2]

Final expiration: 2017

From Wikipedia's article[3] (including the references):

An exception is the United States, where patents filed prior to 8 June 1995 expire 17 years after the publication date of the patent, and a loophole known as submarine patents that makes it possible to extend the effective lifetime of a patent through application extensions. The various MP3-related patents expire on dates ranging from 2007 to 2017 in the U.S.[4] Patents filed for anything disclosed in ISO CD 11172 a year or more after its publication are questionable; if only the known MP3 patents filed by December 1992 are considered, then MP3 decoding may be patent-free in the US by September 2015 when Template:US patent expires which had a PCT filing in Oct 1992.[5][6][7]

Related pages on ESP Wiki

External links

References

  1. ↑ http://fedoraproject.org/w/index.php?title=Multimedia/MP3&oldid=180065
  2. ↑ http://www.mail-archive.com/sipx-dev@list.sipfoundry.org/msg07791.html
  3. ↑ https://en.wikipedia.org/wiki/MP3#Licensing_and_patent_issues
  4. ↑ "A Big List of MP3 Patents (and supposed expiration dates)". tunequest. 26 February 2007. http://www.tunequest.org/a-big-list-of-mp3-patents/20070226/. 
  5. ↑ Cogliati, Josh (20 July 2008). "Patent Status of MPEG-1, H.261 and MPEG-2". Kuro5hin. http://www.kuro5hin.org/story/2008/7/18/232618/312.  This work failed to consider patent divisions and continuations.
  6. ↑ US5812672
  7. ↑ http://www.osnews.com/story/24954/US_Patent_Expiration_for_MP3_MPEG-2_H_264


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