List of United States MPEG-2 patents

A large number of patents have been filed in the United States since 1978 for video coding systems and devices adhering to the MPEG-2 standard. All of these patents are now expired.

Patent Filed granted FirstFile Expiry Summary Notes Company 4833543 24 December 1986 23 May 1989 24 December 1986 24 December 2006 Image processing system and phase-locked loop used therein file+20: [2006, 12, 24] grant+17: [2006, 5, 23] Alcatel-Lucent 4970590 21 December 1989 13 November 1990 21 December 1989 21 December 2009 System and device for package multiplexing in transmission of many data flows generated by a sole algorithm file+20: [2009, 12, 21] grant+17: [2007, 11, 13] Alcatel-Lucent 5453790 26 March 1993 26 September 1995 26 March 1993 26 March 2013 Video decoder having asynchronous operation with respect to a video display file+20: [2013, 3, 26]grant+17: [2012, 9, 26] Alcatel-Lucent 5136377 11 December 1990 4 August 1992 11 December 1990 11 December 2010 Adaptive non-linear quantizer file+20: [2010, 12, 11] grant+17: [2009, 8, 4] AT&T Bell Laboratories 4383272 13 April 1981 10 May 1983 13 April 1981 13 April 2001 Video signal interpolation using motion estimation file+20: [2001, 4, 13] grant+17: [2000, 5, 10] Bell Telephone Laboratories, Incorporated 5291284 23 July 1991 1 March 1994 12 December 1989 1 March 2011 Predictive coding and decoding with error drift reduction file+20: [2011, 7, 23] pct_file+20: [2009, 12, 12] grant+17: [2011, 3, 1] British Telecommunications plc 4982270 3 February 1989 1 January 1991 3 February 1989 3 February 2009 Video data transmitting system file+20: [2009, 2, 3] grant+17: [2008, 1, 1] Canon Inc. 5068724 15 June 1990 26 November 1991 15 June 1990 15 June 2010 Adaptive motion compensation for digital television file+20: [2010, 6, 15] grant+17: [2008, 11, 26] CIF LICENSING, LLC 5091782 9 April 1990 25 February 1992 9 April 1990 9 April 2010 Apparatus and method for adaptively compressing successive blocks of digital video file+20: [2010, 4, 9] grant+17: [2009, 2, 25] CIF LICENSING, LLC 5093720 20 August 1990 3 March 1992 20 August 1990 20 August 2010 Motion compensation for interlaced digital television signals file+20: [2010, 8, 20] grant+17: [2009, 3, 3] CIF LICENSING, LLC RE35093 3 December 1990 9 March 1993 3 December 1990 3 December 2010 Systems and methods for coding even fields of interlaced video sequences Reissue of 05193004 filed 9 December 1994 granted 21 November 1995 file+20: [2010, 12, 3] related_patent+20: [2010, 12, 32] grant+17: [2010, 3, 9] Columbia University 4796087 1 June 1987 3 January 1989 1 June 1987 1 June 2007 Process for coding by transformation for the transmission of picture signals file+20: [2007, 6, 1] grant+17: [2006, 1, 3] France Télécom 5235618 6 November 1990 10 August 1993 6 November 1990 6 November 2010 Video signal coding apparatus, coding method used in the video signal coding apparatus and video signal coding transmission system having the video signal coding apparatus file+20: [2010, 11, 6] grant+17: [2010, 8, 10] Fujitsu 4706260 7 November 1986 10 November 1987 7 November 1986 7 November 2006 DPCM system with rate-of-fill control of buffer occupancy file+20: [2006, 11, 7] grant+17: [2004, 11, 10] General Electric 4813056 8 December 1987 14 March 1989 8 December 1987 8 December 2007 Modified statistical coding of digital signals file+20: [2007, 12, 8] grant+17: [2006, 3, 14] General Electric 4394774 26 June 1981 19 July 1983 15 December 1978 15 December 1998 Digital video compression system and methods utilizing scene adaptive coding with rate buffer feedback file+20: [2001, 6, 26] related_patent+20: [1998, 12, 15] Override: Referenced patent had its term changed grant+17: [2000, 7, 19] terminal disclaimer date December 15, 1998 General Instrument 4698672 27 October 1986 6 October 1987 27 October 1986 27 October 2006 Coding system for reducing redundancy file+20: [2006, 10, 27] grant+17: [2004, 10, 6] General Instrument 5426464 18 October 1994 20 June 1995 14 January 1993 14 January 2013 Field elimination apparatus for a video compression/decompression system file+20: [2014, 10, 18] related_patent+20: [2013, 1, 14] grant+17: [2012, 6, 20] GE 5486864 13 May 1993 23 January 1996 13 May 1993 13 May 2013 Differential time code method and apparatus as for a compressed video signal file+20: [2013, 5, 13] grant+17: [2013, 1, 23] GE 5491516 14 January 1993 13 February 1996 14 January 1993 13 February 2013 Field elimination apparatus for a video compression/decompression system file+20: [2013, 1, 14] grant+17: [2013, 2, 13] GE 5600376 20 March 1995 4 February 1997 14 January 1993 4 February 2014 Field elimination apparatus for a video compression/decompression system file+20: [2015, 3, 20] related_patent+20: [2013, 1, 14] grant+17: [2014, 2, 4] GE 5796743 23 May 1996 18 August 1998 30 November 1993 18 August 2015 Data word indicator in a system for assembling transport data packets file+20: [2016, 5, 23] pct_file+20: [2013, 11, 30] grant+17: [2015, 8, 18] GE 5867501 7 June 1995 2 February 1999 17 December 1992 2 February 2016 Encoding for communicating data and commands file+20: [2015, 6, 7] related_patent+20: [2012, 12, 17] grant+17: [2016, 2, 2] Hewlett-Packard Company 4849812 24 February 1988 18 July 1989 24 February 1988 24 February 2008 Television system, in which digitized picture signals subjected to a transform coding are transmitted from an encoding station to a decoding station file+20: [2008, 2, 24] grant+17: [2006, 7, 18] Koninklijke Philips Electronics N.V. 4901075 11 September 1987 13 February 1990 11 September 1987 11 September 2007 Method and apparatus for bit rate reduction file+20: [2007, 9, 11] grant+17: [2007, 2, 13] Koninklijke Philips Electronics N.V. 5021879 24 September 1990 4 June 1991 25 April 1988 4 June 2008 System for transmitting video pictures file+20: [2010, 9, 24] related_patent+20: [2008, 4, 25] grant+17: [2008, 6, 4] Koninklijke Philips Electronics N.V. 5027206 13 September 1989 25 June 1991 13 September 1989 13 September 2009 High-definition television systems file+20: [2009, 9, 13] grant+17: [2008, 6, 25] Koninklijke Philips Electronics N.V. 5128758 2 June 1989 7 July 1992 2 June 1989 7 July 2009 Method and apparatus for digitally processing a high definition television augmentation signal file+20: [2009, 6, 2] grant+17: [2009, 7, 7] Koninklijke Philips Electronics N.V. 5179442 26 November 1990 12 January 1993 2 June 1989 12 January 2010 Method and apparatus for digitally processing a high definition television augmentation signal file+20: [2010, 11, 26] related_patent+20: [2009, 6, 2] grant+17: [2010, 1, 12] Koninklijke Philips Electronics N.V. 5333135 1 February 1993 26 July 1994 1 February 1993 1 February 2013 Identification of a data stream transmitted as a sequence of packets file+20: [2013, 2, 1] grant+17: [2011, 7, 26] Koninklijke Philips Electronics N.V. 5606539 31 August 1994 25 February 1997 5 June 1991 25 February 2014 Method and apparatus for encoding and decoding an audio and/or video signal, and a record carrier for use with such apparatus file+20: [2014, 8, 31] related_patent+20: [2011, 6, 5] grant+17: [2014, 2, 25] Koninklijke Philips Electronics N.V. 5608697 18 March 1996 4 March 1997 5 June 1991 5 June 2011 Record carrier containing an audio and/or video signal, which has been encoded and includes a decoder delay time parameter indicating a time delay for one or more portions of the signal file+20: [2016, 3, 18] related_patent+20: [2011, 6, 5] Koninklijke Philips Electronics N.V. 5699476 9 May 1996 16 December 1997 19 October 1990 19 October 2010 Method and apparatus for transmitting and/or storing a series of hierarchically encoded digital image data blocks file+20: [2016, 5, 9] related_patent+20: [2010, 10, 19] Koninklijke Philips Electronics N.V. 5740310 28 June 1994 14 April 1998 30 May 1991 14 April 2015 Method of maintaining display continuity from a CD with slow-motion or freeze capability file+20: [2014, 6, 28] related_patent+20: [2011, 5, 30] grant+17: [2015, 4, 14] Koninklijke Philips Electronics N.V. 5844867 9 September 1996 1 December 1998 5 June 1991 5 June 2011 Methods and apparatus for encoding and decoding an audio and/or video signal, and a record carrier used therewith or produced therefrom file+20: [2016, 9, 9] related_patent+20: [2011, 6, 5] Koninklijke Philips Electronics N.V. 6181712 11 October 1995 30 January 2001 23 February 1995 30 January 2018 Method and device for transmitting data packets file+20: [2015, 10, 11] pct_file+20: [2015, 2, 23] grant+17: [2018, 1, 30] Koninklijke Philips Electronics N.V. 6792001 21 September 2000 14 September 2004 23 February 1995 24 May 2017 Method and device for transmitting data packets file+20: [2020, 9, 21] related_patent+20: [2015, 2, 23]Override: Auto parse missed date term extension 821 days Koninklijke Philips Electronics N.V. RE37057 14 November 1994 21 May 1996 14 November 1994 14 November 2014 Apparatus and method for converting an HDTV signal to a non-HDTV signal Reissue of 05519446 filed 18 May 1998 granted 20 February 2001 file+20: [2014, 11, 14] related_patent+20: [2014, 11, 32] grant+17: [2013, 5, 21] LG Electronics RE37568 30 November 1993 1 April 1997 30 November 1993 1 April 2014 Inverse Quantizer Reissue of 05617094 filed 31 March 1999 granted 5 March 2002 file+20: [2013, 11, 30] related_patent+20: [2013, 11, 32] grant+17: [2014, 4, 1] LG Electronics 5113255 11 May 1990 12 May 1992 11 May 1990 11 May 2010 Moving image signal encoding apparatus and decoding apparatus file+20: [2010, 5, 11] grant+17: [2009, 5, 12] Matsushita RE35910 11 May 1990 12 May 1992 11 May 1990 11 May 2010 Moving image signal encoding apparatus and decoding apparatus Reissue of 05113255 filed 12 May 1994 granted 29 September 1998 file+20: [2010, 5, 11] related_patent+20: [2010, 5, 32] grant+17: [2009, 5, 12] Matsushita RE36015 27 March 1992 8 March 1994 27 March 1992 27 March 2012 Apparatus and method for processing groups of fields in a video data compression system Reissue of 05293229 filed 2 October 1995 granted 29 December 1998 file+20: [2012, 3, 27] related_patent+20: [2012, 3, 32] grant+17: [2011, 3, 8] Matsushita RE36507 27 March 1992 8 March 1994 27 March 1992 27 March 2012 Apparatus and method for processing groups of fields in a video data compression system to encode a single frame as an I-field and a P-field Reissue of 05293229 filed 21 October 1997 granted 18 January 2000 file+20: [2012, 3, 27] related_patent+20: [2012, 3, 27] grant+17: [2011, 3, 8] Matsushita RE39276 20 July 1994 28 April 1998 2 November 1992 28 April 2015 Method for determining motion compensation Reissue of 05745182 filed 27 April 2000 granted 12 September 2006 file+20: [2014, 7, 20] related_patent+20: [2012, 11, 2] grant+17: [2015, 4, 28] Matsushita RE39278 20 July 1994 28 April 1998 2 November 1992 28 April 2015 Method for determining motion compensation Reissue of 05745182 filed 13 April 2001 granted 12 September 2006 file+20: [2014, 7, 20] related_patent+20: [2012, 11, 2] grant+17: [2015, 4, 28] Matsushita RE39280 20 July 1994 28 April 1998 2 November 1992 28 April 2015 Method for determining motion compensation Reissue of 05745182 filed 30 May 2001 granted 12 September 2006 file+20: [2014, 7, 20] related_patent+20: [2012, 11, 2]

List of United States MPEG-2 patents

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