Le site suivant contient une grande liste de brevets MP3 :
http://www.tunequest.org/a-big-list-of-mp3-patents/20070226/
The near complete draft standard was publicly available according to [MPEG FAQ (usenet)]. The draft standard was published as ISO/IEC JTC/SC29, “Coded Representation of Picture, Audio and Multimedia/Hypermedia Information”, Committee Draft of Standard ISO/IEC 11172, December 6, 1991.
This means, I believe, that any MP3 patent filed after December 6, 1992 has prior art that can be used to invalid it
Ou même avant : 15 dec 1990 I’m not in the committee, but I have a copy of MPEG draft. I don’t think it’s confidential, as I didn’t sign anything to get it.
[…] from the contents of the draft material, I think the audio part is closest to the finalization. Woobin Lee/ Image Computing System Lab/University of Washington ( woobin@u.washington.edu )
Encore : I am looking for a copy of the recently approved first draft of the MPEG standard 22 sep 1990
Implémentation : General Instruments has put in a all-Digital HDTV […] any info on the compresion scheme (JPEG, MPEG) 15 nov 1990
Papiers sur audio : 1979 ASSP paper (sorry, the citation isn’t right next to me) by Schroeder, Atal, and Hall on Psychoacoustic Coding, as well as Brandenburg, K, « High quality sound coding at 2.5 bits/sample », 84th AES Convention Paris 1988, Johnston and Brandenburg « Second Generation Perceptual Audio Coding: The Hybrid Coder », 88th AES Convention, Montreux, 1990, Johnston, J. D, « Transform Coding of Audio Signals Using Perceptual Noise Criteria », JSAC, 1988 Vol. 6, pp314+, Theile, G (et al), « MASCAM: Low Bit rate coding of high quality audio signal, and introdction tot he MASCAM system », EBU Review, No. 230. and many others. 9 août 1990
En gros :
– MP3 patent filed after December 6, 1992
5,321,729 – Filed: April 26, 1993 (continuation, priority DE 29 June 1990) Exp US : April 26, 2013 (Expired EU)
5,706,309 – Filed: November 02, 1993 (multichannel compression – priority DE 2 Nov 1992) Exp : 6 January 2015
5,579,430 – Filed: January 26, 1995
5,701,346 – Filed: February 02, 1995
5,703,999 – Filed: November 18, 1996
5,924,060 – Filed: August 29, 1997 (
6,009,399 – Filed: April 16, 1997 (optimization of choice of acoustic model for encoder)
6,185,539 – Filed: February 19, 1997 (enhancement to the initial std for low rates compression)
Annoying :
5,812,672 – Filed: October 13, 1992 => Expire September 22, 2015
5,559,834 – Filed: October 06, 1992 => September 24, 2013
– October 3, 2012 : 5,455,833
– October 16, 2012 : 5,341,457
5,742,735 – Filed: October 6, 1988 – Granted: April 21, 1998 – Expires: April 21, 2015
RE39,080 (reissue of 5,627,938) – Filed: December 30, 1988 – Expires: May 6, 2014
Le site suivant complète utilement : US Patent Expiration for MP3, MPEG-2, H.264
Avec des update sur : scratchpad – wikia – MPEG patent status
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