MPEG patent lists
From Scratchpad
[edit] MPEG-1 Audio Layer 3 patents
Some claimed MPEG-1 audio patents from [1] and [2]:
| Patent | Filed | Granted | Expiration | Summary | Notes | Company |
|---|---|---|---|---|---|---|
| 5,341,457 | 20 aug 1993 | 23 aug 1994 | 20 aug 2013 | Perceptual coding of audio signals | [3] | Alcatel-Lucent |
| RE39,080 | 22 sep 1994 | 06 may 1997 | 22 sep 2014 | Rate loop processor for perceptual encoder/decoder | Reissue of 05627938 filed 13 aug 2002 granted 25 apr 2006 [4] | Alcatel-Lucent |
| 4,972,484 | 21 jul 1988 | 20 nov 1990 | 21 jul 2008 | Method of transmitting or storing masked sub-band coded audio signals | [5] | Audio MPEG, Inc |
| 5,214,678 | 31 may 1990 | 25 may 1993 | 31 may 2010 | Digital transmission system using subband coding of a digital signal | [6] | Audio MPEG, Inc |
| 5,323,396 | 21 dec 1992 | 21 jun 1994 | 21 dec 2012 | Digital transmission system, transmitter and receiver for use in the transmission system | [7] | Audio MPEG, Inc |
| 5,539,829 | 07 jun 1995 | 23 jul 1996 | 07 jun 2015 | Subband coded digital transmission system using some composite signals | [8] | Audio MPEG, Inc |
| 5,606,618 | 27 dec 1993 | 25 feb 1997 | 27 dec 2013 | Subband coded digital transmission system using some composite signals | [9] | Audio MPEG, Inc |
| 5,530,655 | 06 jun 1995 | 25 jun 1996 | 06 jun 2015 | Digital sub-band transmission system with transmission of an additional signal | [10] | Audio MPEG, Inc |
| 5,777,992 | 07 jun 1995 | 07 jul 1998 | 07 jun 2015 | Decoder for decoding and encoded digital signal and a receiver comprising the decoder | [11] | Audio MPEG, Inc |
| 6,289,308 | 08 mar 2000 | 11 sep 2001 | 08 mar 2020 | Encoded wideband digital transmission signal and record carrier recorded with such a signal | [12] | Audio MPEG, Inc |
| 5,481,643 | 24 apr 1995 | 02 jan 1996 | 24 apr 2015 | Transmitter, receiver and record carrier for transmitting/receiving at least a first and a second signal component | [13] | Audio MPEG, Inc |
| 5,544,247 | 25 oct 1994 | 06 aug 1996 | 25 oct 2014 | Transmission and reception of a first and a second main signal component | [14] | Audio MPEG, Inc |
| 5,610,985 | 21 jan 1994 | 11 mar 1997 | 21 jan 2014 | Digital 3-channel transmission of left and right stereo signals and a center signal | [15] | Audio MPEG, Inc |
| 5,740,317 | 30 aug 1995 | 14 apr 1998 | 30 aug 2015 | Process for finding the overall monitoring threshold during a bit-rate-reducing source coding | [16] | Audio MPEG, Inc |
| 5,878,080 | 07 feb 1997 | 02 mar 1999 | 07 feb 2017 | N-channel transmission, compatible with 2-channel transmission and 1-channel transmission | [17] | Audio MPEG, Inc |
| 5,960,037 | 09 apr 1997 | 28 sep 1999 | 09 apr 2017 | Encoding of a plurality of information signals | [18] | Audio MPEG, Inc |
| 5,991,715 | 31 aug 1995 | 23 nov 1999 | 31 aug 2015 | Perceptual audio signal subband coding using value classes for successive scale factor differences | [19] | Audio MPEG, Inc |
| 6,023,490 | 09 apr 1997 | 08 feb 2000 | 09 apr 2017 | Encoding apparatus for encoding a plurality of information signals | [20] | Audio MPEG, Inc |
| 4,821,260 | 16 dec 1987 | 11 apr 1989 | 16 dec 2007 | Transmission system | [21] | Thomson |
| 4,942,607 | 03 feb 1988 | 17 jul 1990 | 03 feb 2008 | Method of transmitting an audio signal | [22] | Thomson |
| 5,214,742 | 01 oct 1990 | 25 may 1993 | 01 oct 2010 | Method for transmitting a signal | [23] | Thomson |
| 5,227,990 | 17 jan 1992 | 13 jul 1993 | 17 jan 2012 | Process for transmitting and receiving a signal | [24] | Thomson |
| 5,384,811 | 24 aug 1992 | 24 jan 1995 | 24 aug 2012 | Method for the transmission of a signal | [25] | Thomson |
| 5,736,943 | 31 may 1996 | 07 apr 1998 | 31 may 2016 | Method for determining the type of coding to be selected for coding at least two signals | [26] | Thomson |
| 5,455,833 | 26 apr 1993 | 03 oct 1995 | 26 apr 2013 | Process for the detecting of errors in the transmission of frequency-coded digital signals | [27] | Thomson |
| 5,559,834 | 15 apr 1994 | 24 sep 1996 | 15 apr 2014 | Method of reducing crosstalk in processing of acoustic or optical signals | [28] | Thomson |
| 5,321,729 | 26 apr 1993 | 14 jun 1994 | 26 apr 2013 | Method for transmitting a signal | [29] | Thomson |
| 5,706,309 | 02 may 1995 | 06 jan 1998 | 02 may 2015 | Process for transmitting and/or storing digital signals of multiple channels | [30] | Thomson |
| 5,701,346 | 12 sep 1996 | 23 dec 1997 | 12 sep 2016 | Method of coding a plurality of audio signals | [31] | Thomson |
| 5,742,735 | 25 aug 1994 | 21 apr 1998 | 25 aug 2014 | Digital adaptive transformation coding method | [32] | Thomson |
| 5,812,672 | 15 dec 1994 | 22 sep 1998 | 15 dec 2014 | Method for reducing data in the transmission and/or storage of digital signals of several dependent channels | [33] | Thomson |
| 5,579,430 | 26 jan 1995 | 26 nov 1996 | 26 jan 2015 | Digital encoding process | [34] | Thomson |
| 6,185,539 | 26 may 1998 | 06 feb 2001 | 26 may 2018 | Process of low sampling rate digital encoding of audio signals | [35] | Thomson |
| 6,009,399 | 16 apr 1997 | 28 dec 1999 | 16 apr 2017 | Method and apparatus for encoding digital signals employing bit allocation using combinations of different threshold models to achieve desired bit rates | [36] | Thomson |
| 5,924,060 | 20 mar 1997 | 13 jul 1999 | 20 mar 2017 | Digital coding process for transmission or storage of acoustical signals by transforming of scanning values into spectral coefficients | [37] | Thomson |
| 5,703,999 | 18 nov 1996 | 30 dec 1997 | 18 nov 2016 | Process for reducing data in the transmission and/or storage of digital signals from several interdependent channels | [38] | Thomson |
[edit] MPEG-2 patents from MPEG-LA
Some Claimed MPEG-2 patents (All the patents on MP3 plus US patents from [39]:
| Patent | Filed | Granted | Expiration | Summary | Notes | Company |
|---|---|---|---|---|---|---|
| 4,833,543 | 24 dec 1986 | 23 may 1989 | 24 dec 2006 | Image processing system and phaselocked loop used therein | [40] | Alcatel-Lucent |
| 4,970,590 | 21 dec 1989 | 13 nov 1990 | 21 dec 2009 | System and device for package multiplexing in transmission of many data flows generated by a sole algorithm | [41] | Alcatel-Lucent |
| 5,453,790 | 26 mar 1993 | 26 sep 1995 | 26 mar 2013 | Video decoder having asynchronous operation with respect to a video display | [42] | Alcatel-Lucent |
| 5,291,284 | 23 jul 1991 | 01 mar 1994 | 23 jul 2011 | Predictive coding and decoding with error drift reduction | [43] | British Telecommunications plc |
| 4,982,270 | 03 feb 1989 | 01 jan 1991 | 03 feb 2009 | Video data transmitting system | [44] | Canon Inc. |
| 5,068,724 | 15 jun 1990 | 26 nov 1991 | 15 jun 2010 | Adaptive motion compensation for digital television | [45] | CIF LICENSING, LLC |
| 5,091,782 | 09 apr 1990 | 25 feb 1992 | 09 apr 2010 | Apparatus and method for adaptively compressing successive blocks of digital video | [46] | CIF LICENSING, LLC |
| 5,093,720 | 20 aug 1990 | 03 mar 1992 | 20 aug 2010 | Motion compensation for interlaced digital television signals | [47] | CIF LICENSING, LLC |
| RE35,093 | 03 dec 1990 | 09 mar 1993 | 03 dec 2010 | Systems and methods for coding even fields of interlaced video sequences | Reissue of 05193004 filed 09 dec 1994 granted 21 nov 1995 [48] | Columbia University |
| 4,796,087 | 01 jun 1987 | 03 jan 1989 | 01 jun 2007 | Process for coding by transformation for the transmission of picture signals | [49] | France Télécom |
| 5,235,618 | 06 nov 1990 | 10 aug 1993 | 06 nov 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 | [50] | Fujitsu |
| 4,706,260 | 07 nov 1986 | 10 nov 1987 | 07 nov 2006 | DPCM system with rate-of-fill control of buffer occupancy | [51] | General Electric |
| 4,813,056 | 08 dec 1987 | 14 mar 1989 | 08 dec 2007 | Modified statistical coding of digital signals | [52] | General Electric |
| 4,394,774 | 26 jun 1981 | 19 jul 1983 | 26 jun 2001 | Digital video compression system and methods utilizing scene adaptive coding with rate buffer feedback | [53] | General Instrument |
| 4,698,672 | 27 oct 1986 | 06 oct 1987 | 27 oct 2006 | Coding system for reducing redundancy | [54] | General Instrument |
| 5,426,464 | 18 oct 1994 | 20 jun 1995 | 18 oct 2014 | Field elimination apparatus for a video compression/decompression system | [55] | GE |
| 5,486,864 | 13 may 1993 | 23 jan 1996 | 13 may 2013 | Differential time code method and apparatus as for a compressed video signal | [56] | GE |
| 5,491,516 | 14 jan 1993 | 13 feb 1996 | 14 jan 2013 | Field elimination apparatus for a video compression/decompression system | [57] | GE |
| 5,600,376 | 20 mar 1995 | 04 feb 1997 | 20 mar 2015 | Field elimination apparatus for a video compression/decompression system | [58] | GE |
| 5,796,743 | 23 may 1996 | 18 aug 1998 | 23 may 2016 | Data word indicator in a system for assembling transport data packets | [59] | GE |
| RE37,057 | 14 nov 1994 | 21 may 1996 | 14 nov 2014 | Apparatus and method for converting an HDTV signal to a non-HDTV signal | Reissue of 05519446 filed 18 may 1998 granted 20 feb 2001 [60] | LG Electronics |
| RE37,568 | 30 nov 1993 | 01 apr 1997 | 30 nov 2013 | Inverse Quantizer | Reissue of 05617094 filed 31 mar 1999 granted 05 mar 2002 [61] | LG Electronics |
| RE35,910 | 11 may 1990 | 12 may 1992 | 11 may 2010 | Moving image signal encoding apparatus and decoding apparatus | Reissue of 05113255 filed 12 may 1994 granted 29 sep 1998 [62] | Matsushita |
| RE36,015 | 27 mar 1992 | 08 mar 1994 | 27 mar 2012 | Apparatus and method for processing groups of fields in a video data compression system | Reissue of 05293229 filed 02 oct 1995 granted 29 dec 1998 [63] | Matsushita |
| RE36,507 | 27 mar 1992 | 08 mar 1994 | 27 mar 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 oct 1997 granted 18 jan 2000 [64] | Matsushita |
| RE39,276 | 20 jul 1994 | 28 apr 1998 | 20 jul 2014 | Method for determining motion compensation | Reissue of 05745182 filed 27 apr 2000 granted 12 sep 2006 [65] | Matsushita |
| RE39,278 | 20 jul 1994 | 28 apr 1998 | 20 jul 2014 | Method for determining motion compensation | Reissue of 05745182 filed 13 apr 2001 granted 12 sep 2006 [66] | Matsushita |
| RE39,280 | 20 jul 1994 | 28 apr 1998 | 20 jul 2014 | Method for determining motion compensation | Reissue of 05745182 filed 30 may 2001 granted 12 sep 2006 [67] | Matsushita |
| 5,223,949 | 17 apr 1992 | 29 jun 1993 | 17 apr 2012 | Coding means for a signal processing system | [68] | Matsushita |
| 5,412,430 | 04 may 1994 | 02 may 1995 | 04 may 2014 | Image coding method and image coding apparatus | [69] | Matsushita |
| 5,784,107 | 23 jan 1996 | 21 jul 1998 | 23 jan 2016 | Method and apparatus for picture coding and method and apparatus for picture decoding | [70] | Matsushita |
| 4,954,892 | 04 oct 1989 | 04 sep 1990 | 04 oct 2009 | Buffer controlled picture signal encoding and decoding system | [71] | Mitsubishi |
| 5,072,295 | 20 aug 1990 | 10 dec 1991 | 20 aug 2010 | Adaptive quantization coder/decoder with limiter circuitry | [72] | Mitsubishi |
| 5,268,846 | 10 apr 1991 | 07 dec 1993 | 10 apr 2011 | Method and apparatus for nonsequential multimedia data interchange in a data processing system | [73] | Mitsubishi |
| 5,949,489 | 31 jul 1998 | 07 sep 1999 | 31 jul 2018 | Image signal coding system | [74] | Mitsubishi |
| 5,963,258 | 31 jul 1998 | 05 oct 1999 | 31 jul 2018 | Image signal coding system | [75] | Mitsubishi |
| 5,970,175 | 26 oct 1998 | 19 oct 1999 | 26 oct 2018 | Image signal coding system | [76] | Mitsubishi |
| 5,990,960 | 09 dec 1998 | 23 nov 1999 | 09 dec 2018 | Image signal coding system | [77] | Mitsubishi |
| 6,002,439 | 27 may 1999 | 14 dec 1999 | 27 may 2019 | Image signal coding system | [78] | Mitsubishi |
| 6,097,759 | 22 nov 1999 | 01 aug 2000 | 22 nov 2019 | Image signal coding system | [79] | Mitsubishi |
| 6,188,794 | 20 may 1999 | 13 feb 2001 | 20 may 2019 | Image signal coding system | [80] | Mitsubishi |
| 6,307,973 | 04 dec 2000 | 23 oct 2001 | 04 dec 2020 | Image signal coding system | [81] | Mitsubishi |
| 4,849,812 | 24 feb 1988 | 18 jul 1989 | 24 feb 2008 | Television system in which digitized picture signals subjected to a transform coding are transmitted from an encoding station to a decoding station | [82] | Philips |
| 4,901,075 | 11 sep 1987 | 13 feb 1990 | 11 sep 2007 | Method and apparatus for bit rate reduction | [83] | Philips |
| 5,021,879 | 24 sep 1990 | 04 jun 1991 | 24 sep 2010 | System for transmitting video pictures | [84] | Philips |
| 5,027,206 | 13 sep 1989 | 25 jun 1991 | 13 sep 2009 | High-definition television systems | [85] | Philips |
| 5,128,758 | 02 jun 1989 | 07 jul 1992 | 02 jun 2009 | Method and apparatus for digitally processing a high definition television augmentation signal | [86] | Philips |
| 5,179,442 | 26 nov 1990 | 12 jan 1993 | 26 nov 2010 | Method and apparatus for digitally processing a high definition television augmentation signal | [87] | Philips |
| 5,333,135 | 01 feb 1993 | 26 jul 1994 | 01 feb 2013 | Identification of a data stream transmitted as a sequence of packets | [88] | Philips |
| 5,606,539 | 31 aug 1994 | 25 feb 1997 | 31 aug 2014 | Method and apparatus for encoding and decoding an audio and/or video signal, and a record carrier for use with such apparatus | [89] | Philips |
| 5,608,697 | 18 mar 1996 | 04 mar 1997 | 18 mar 2016 | 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 | [90] | Philips |
| 5,740,310 | 28 jun 1994 | 14 apr 1998 | 28 jun 2014 | Method of maintaining display continuity from a CD with slow-motion or freeze capability | [91] | Philips |
| 5,844,867 | 09 sep 1996 | 01 dec 1998 | 09 sep 2016 | Methods and apparatus for encoding and decoding an audio and/or video signal, and a record carrier used therewith or produced therefrom | [92] | Philips |
| 5,461,421 | 29 nov 1993 | 24 oct 1995 | 29 nov 2013 | Encoding and decoding method and apparatus thereof | [93] | Samsung |
| 5,467,086 | 18 jun 1993 | 14 nov 1995 | 18 jun 2013 | Apparatus and method of coding/decoding video data | [94] | Samsung |
| 5,654,706 | 18 dec 1996 | 05 aug 1997 | 18 dec 2016 | System for variable length decoding digital transmission data which has been compressed by selecting a scanning pattern | [95] | Samsung |
| 6,680,975 | 02 nov 2000 | 20 jan 2004 | 02 nov 2020 | Signal encoding and decoding system and method | [96] | Samsung |
| 7,292,657 | 03 jul 2003 | 06 nov 2007 | 03 jul 2023 | Signal compressing signal | [97] | Samsung |
| 5,418,782 | 06 jan 1994 | 23 may 1995 | 06 jan 2014 | Methods and apparatus for providing virtual service selection in a multi-service communications system | [98] | Scientific Atlanta |
| 5,420,866 | 29 mar 1994 | 30 may 1995 | 29 mar 2014 | Methods for providing conditional access information to decoders in a packet-based multiplexed communications system | [99] | Scientific Atlanta |
| 5,457,701 | 06 jan 1994 | 10 oct 1995 | 06 jan 2014 | Method for indicating packet errors in a packet-based multi-hop communications system | [100] | Scientific Atlanta |
| 4,864,393 | 31 may 1988 | 05 sep 1989 | 31 may 2008 | Motion vector estimation in television images | [101] | Sony |
| RE37,222 | 12 oct 1990 | 21 jul 1992 | 12 oct 2010 | Video signal transmitting system | Reissue of 05132792 filed 19 jul 1994 granted 12 jun 2001 [102] | Sony |
| 5,191,436 | 30 apr 1991 | 02 mar 1993 | 30 apr 2011 | Method for recording coded motion picture data | [103] | Sony |
| 5,291,486 | 07 aug 1992 | 01 mar 1994 | 07 aug 2012 | Data multiplexing apparatus and multiplexed data demultiplexing apparatus | [104] | Sony |
| 5,298,991 | 24 jul 1992 | 29 mar 1994 | 24 jul 2012 | Variable length coding apparatus and method for motion vector | [105] | Sony |
| 5,343,248 | 16 jul 1992 | 30 aug 1994 | 16 jul 2012 | Moving image compressing and recording medium and moving image data encoder and decoder | [106] | Sony |
| 5,428,396 | 27 dec 1993 | 27 jun 1995 | 27 dec 2013 | Variable length coding/decoding method for motion vectors | [107] | Sony |
| 5,461,420 | 17 sep 1993 | 24 oct 1995 | 17 sep 2013 | Apparatus for coding and decoding a digital video signal derived from a motion picture film source | [108] | Sony |
| 5,481,553 | 28 feb 1994 | 02 jan 1996 | 28 feb 2014 | Methods and apparatus for preventing rounding errors when transform coefficients representing a motion picture signal are inversely transformed | [109] | Sony |
| 5,510,840 | 15 may 1995 | 23 apr 1996 | 15 may 2015 | Methods and devices for encoding and decoding frame signals and recording medium therefor | [110] | Sony |
| 5,539,466 | 26 sep 1994 | 23 jul 1996 | 26 sep 2014 | Efficient coding apparatus for picture signal and decoding apparatus therefor | [111] | Sony |
| 5,543,847 | 13 dec 1993 | 06 aug 1996 | 13 dec 2013 | Picture coding and decoding method for random accessing | [112] | Sony |
| 5,559,557 | 28 sep 1993 | 24 sep 1996 | 28 sep 2013 | Motion video coding with adaptive precision for DC component coefficient quantization and variable length coding | [113] | Sony |
| 5,663,763 | 18 oct 1993 | 02 sep 1997 | 18 oct 2013 | Picture signal encoding method and apparatus and picture signal decoding method and apparatus | [114] | Sony |
| 5,666,461 | 30 may 1995 | 09 sep 1997 | 30 may 2015 | High efficiency encoding and decoding of picture signals and recording medium containing same | [115] | Sony |
| 5,701,164 | 19 dec 1996 | 23 dec 1997 | 19 dec 2016 | Macroblock coding including difference between motion vectors | [116] | Sony |
| 5,946,042 | 02 jul 1997 | 31 aug 1999 | 02 jul 2017 | Macroblock coding including difference between motion vectors | [117] | Sony |
| 5,982,437 | 15 oct 1993 | 09 nov 1999 | 15 oct 2013 | Coding method and system, and decoding method and system | [118] | Sony |
| 6,040,863 | 18 dec 1998 | 21 mar 2000 | 18 dec 2018 | Method of coding and decoding motion vector and apparatus therefor, and method of coding and decoding picture signal and apparatus therefor | [119] | Sony |
| 6,160,849 | 30 may 1995 | 12 dec 2000 | 30 may 2015 | Selectable field and frame based predictive video coding | [120] | Sony |
| 4,800,432 | 24 oct 1986 | 24 jan 1989 | 24 oct 2006 | Video Difference key generator | [121] | Thomson |
| 4,969,055 | 25 aug 1988 | 06 nov 1990 | 25 aug 2008 | Method for recording and/or reproducing digitally coded signals with interframe and interframe coding | [122] | Thomson |
| 5,289,276 | 19 jun 1992 | 22 feb 1994 | 19 jun 2012 | Method and apparatus for conveying compressed video data over a noisy communication channel | [123] | Thomson |
| 5,365,272 | 02 jul 1993 | 15 nov 1994 | 02 jul 2013 | Method for formatting compressed video data into transport cells | [124] | Thomson |
| 5,381,181 | 13 may 1993 | 10 jan 1995 | 13 may 2013 | Clock recovery apparatus as for a compressed video signal | [125] | Thomson |
| 5,422,676 | 22 oct 1993 | 06 jun 1995 | 22 oct 2013 | System for coding an image representative signal | [126] | Thomson |
| 5,442,400 | 29 apr 1993 | 15 aug 1995 | 29 apr 2013 | Error concealment apparatus for MPEG-like video data | [127] | Thomson |
| 5,459,789 | 22 apr 1994 | 17 oct 1995 | 22 apr 2014 | Packet TV program component detector | [128] | Thomson |
| 5,483,287 | 03 aug 1994 | 09 jan 1996 | 03 aug 2014 | Method for forming transport cells for conveying compressed video data | [129] | Thomson |
| 5,565,923 | 22 aug 1995 | 15 oct 1996 | 22 aug 2015 | Apparatus for formatting a digital signal to include multiple time stamps for system synchronization | [130] | Thomson |
| 5,784,110 | 23 may 1996 | 21 jul 1998 | 23 may 2016 | Data processor for assembling transport data packets | [131] | Thomson |
| 7,020,204 | 08 feb 2002 | 28 mar 2006 | 08 feb 2022 | Adaptive method of encoding and decoding a series of pictures by transformation, and devices for implementing this method | [132] | Thomson |
| 5,317,397 | 29 may 1992 | 31 may 1994 | 29 may 2012 | Predictive coding using spatial-temporal filtering and plural motion vectors | [133] | Toshiba |
| 5,424,779 | 24 nov 1993 | 13 jun 1995 | 24 nov 2013 | Video coding apparatus | [134] | Toshiba |
| 5,467,136 | 17 feb 1994 | 14 nov 1995 | 17 feb 2014 | Video decoder for determining a motion vector from a scaled vector and a difference vector | [135] | Toshiba |
| 5,742,344 | 03 apr 1996 | 21 apr 1998 | 03 apr 2016 | Motion compensated video decoding method and system for decoding a coded video signal using spatial and temporal filtering | [136] | Toshiba |
| 5,986,713 | 11 jun 1998 | 16 nov 1999 | 11 jun 2018 | Video coding apparatus using inter-field prediction | [137] | Toshiba |
| RE34,965 | 18 jan 1990 | 15 jan 1991 | 18 jan 2010 | Inter-frame predictive encoding system with encoded and transmitted prediction error | Reissue of 04985768 filed 14 jan 1993 granted 13 jun 1995 [138] | Victor Company |
| RE35,158 | 26 apr 1990 | 01 jan 1991 | 26 apr 2010 | Apparatus for adaptive inter-frame predictive encoding of video signal | Reissue of 04982285 filed 28 dec 1992 granted 20 feb 1996 [139] | Victor Company |
| RE36,822 | 17 jun 1996 | 05 may 1998 | 17 jun 2016 | Moving image signal coding apparatus and coded signal decoding apparatus | Reissue of 05748784 filed 02 oct 1998 granted 15 aug 2000 [140] | Victor Company |
| 5,103,307 | 18 jan 1991 | 07 apr 1992 | 18 jan 2011 | Interframe predictive coding/decoding system for varying interval between independent frames | [141] | Victor Company |
| 5,175,618 | 30 oct 1991 | 29 dec 1992 | 30 oct 2011 | Compression method for interlace moving image signals | [142] | Victor Company |
| 5,341,457 | 20 aug 1993 | 23 aug 1994 | 20 aug 2013 | Perceptual coding of audio signals | [143] | Alcatel-Lucent |
| RE39,080 | 22 sep 1994 | 06 may 1997 | 22 sep 2014 | Rate loop processor for perceptual encoder/decoder | Reissue of 05627938 filed 13 aug 2002 granted 25 apr 2006 [144] | Alcatel-Lucent |
| 4,972,484 | 21 jul 1988 | 20 nov 1990 | 21 jul 2008 | Method of transmitting or storing masked sub-band coded audio signals | [145] | Audio MPEG, Inc |
| 5,214,678 | 31 may 1990 | 25 may 1993 | 31 may 2010 | Digital transmission system using subband coding of a digital signal | [146] | Audio MPEG, Inc |
| 5,323,396 | 21 dec 1992 | 21 jun 1994 | 21 dec 2012 | Digital transmission system, transmitter and receiver for use in the transmission system | [147] | Audio MPEG, Inc |
| 5,539,829 | 07 jun 1995 | 23 jul 1996 | 07 jun 2015 | Subband coded digital transmission system using some composite signals | [148] | Audio MPEG, Inc |
| 5,606,618 | 27 dec 1993 | 25 feb 1997 | 27 dec 2013 | Subband coded digital transmission system using some composite signals | [149] | Audio MPEG, Inc |
| 5,530,655 | 06 jun 1995 | 25 jun 1996 | 06 jun 2015 | Digital sub-band transmission system with transmission of an additional signal | [150] | Audio MPEG, Inc |
| 5,777,992 | 07 jun 1995 | 07 jul 1998 | 07 jun 2015 | Decoder for decoding and encoded digital signal and a receiver comprising the decoder | [151] | Audio MPEG, Inc |
| 6,289,308 | 08 mar 2000 | 11 sep 2001 | 08 mar 2020 | Encoded wideband digital transmission signal and record carrier recorded with such a signal | [152] | Audio MPEG, Inc |
| 5,481,643 | 24 apr 1995 | 02 jan 1996 | 24 apr 2015 | Transmitter, receiver and record carrier for transmitting/receiving at least a first and a second signal component | [153] | Audio MPEG, Inc |
| 5,544,247 | 25 oct 1994 | 06 aug 1996 | 25 oct 2014 | Transmission and reception of a first and a second main signal component | [154] | Audio MPEG, Inc |
| 5,610,985 | 21 jan 1994 | 11 mar 1997 | 21 jan 2014 | Digital 3-channel transmission of left and right stereo signals and a center signal | [155] | Audio MPEG, Inc |
| 5,740,317 | 30 aug 1995 | 14 apr 1998 | 30 aug 2015 | Process for finding the overall monitoring threshold during a bit-rate-reducing source coding | [156] | Audio MPEG, Inc |
| 5,878,080 | 07 feb 1997 | 02 mar 1999 | 07 feb 2017 | N-channel transmission, compatible with 2-channel transmission and 1-channel transmission | [157] | Audio MPEG, Inc |
| 5,960,037 | 09 apr 1997 | 28 sep 1999 | 09 apr 2017 | Encoding of a plurality of information signals | [158] | Audio MPEG, Inc |
| 5,991,715 | 31 aug 1995 | 23 nov 1999 | 31 aug 2015 | Perceptual audio signal subband coding using value classes for successive scale factor differences | [159] | Audio MPEG, Inc |
| 6,023,490 | 09 apr 1997 | 08 feb 2000 | 09 apr 2017 | Encoding apparatus for encoding a plurality of information signals | [160] | Audio MPEG, Inc |
| 4,821,260 | 16 dec 1987 | 11 apr 1989 | 16 dec 2007 | Transmission system | [161] | Thomson |
| 4,942,607 | 03 feb 1988 | 17 jul 1990 | 03 feb 2008 | Method of transmitting an audio signal | [162] | Thomson |
| 5,214,742 | 01 oct 1990 | 25 may 1993 | 01 oct 2010 | Method for transmitting a signal | [163] | Thomson |
| 5,227,990 | 17 jan 1992 | 13 jul 1993 | 17 jan 2012 | Process for transmitting and receiving a signal | [164] | Thomson |
| 5,384,811 | 24 aug 1992 | 24 jan 1995 | 24 aug 2012 | Method for the transmission of a signal | [165] | Thomson |
| 5,736,943 | 31 may 1996 | 07 apr 1998 | 31 may 2016 | Method for determining the type of coding to be selected for coding at least two signals | [166] | Thomson |
| 5,455,833 | 26 apr 1993 | 03 oct 1995 | 26 apr 2013 | Process for the detecting of errors in the transmission of frequency-coded digital signals | [167] | Thomson |
| 5,559,834 | 15 apr 1994 | 24 sep 1996 | 15 apr 2014 | Method of reducing crosstalk in processing of acoustic or optical signals | [168] | Thomson |
| 5,321,729 | 26 apr 1993 | 14 jun 1994 | 26 apr 2013 | Method for transmitting a signal | [169] | Thomson |
| 5,706,309 | 02 may 1995 | 06 jan 1998 | 02 may 2015 | Process for transmitting and/or storing digital signals of multiple channels | [170] | Thomson |
| 5,701,346 | 12 sep 1996 | 23 dec 1997 | 12 sep 2016 | Method of coding a plurality of audio signals | [171] | Thomson |
| 5,742,735 | 25 aug 1994 | 21 apr 1998 | 25 aug 2014 | Digital adaptive transformation coding method | [172] | Thomson |
| 5,812,672 | 15 dec 1994 | 22 sep 1998 | 15 dec 2014 | Method for reducing data in the transmission and/or storage of digital signals of several dependent channels | [173] | Thomson |
| 5,579,430 | 26 jan 1995 | 26 nov 1996 | 26 jan 2015 | Digital encoding process | [174] | Thomson |
| 6,185,539 | 26 may 1998 | 06 feb 2001 | 26 may 2018 | Process of low sampling rate digital encoding of audio signals | [175] | Thomson |
| 6,009,399 | 16 apr 1997 | 28 dec 1999 | 16 apr 2017 | Method and apparatus for encoding digital signals employing bit allocation using combinations of different threshold models to achieve desired bit rates | [176] | Thomson |
| 5,924,060 | 20 mar 1997 | 13 jul 1999 | 20 mar 2017 | Digital coding process for transmission or storage of acoustical signals by transforming of scanning values into spectral coefficients | [177] | Thomson |
| 5,703,999 | 18 nov 1996 | 30 dec 1997 | 18 nov 2016 | Process for reducing data in the transmission and/or storage of digital signals from several interdependent channels | [178] | Thomson |
[edit] Philips Patents on Video CDs
These are all the US patents listed on http://www.ip.philips.com/services/?module=IpsLicenseProgram&command=View&id=52&part=4 as a table.
| Patent | Filed | Granted | Expiration | Summary | Notes | Company |
|---|---|---|---|---|---|---|
| 5068846 | 23 apr 1988 | 26 nov 1991 | 23 apr 2008 | Reflective optical record carrier | [179] | Unknown |
| 4977550 | 22 dec 1988 | 11 dec 1990 | 22 dec 2008 | Disc playback apparatus for playback of music and digital data | [180] | Unknown |
| 5113255 | 11 may 1990 | 12 may 1992 | 11 may 2010 | Moving image signal encoding apparatus and decoding apparatus | [181] | Unknown |
| 5223949 | 17 apr 1992 | 29 jun 1993 | 17 apr 2012 | Coding means for a signal processing system | [182] | Unknown |
| 5128758 | 02 jun 1989 | 07 jul 1992 | 02 jun 2009 | Method and apparatus for digitally processing a high definition television augmentation signal | [183] | Unknown |
| 5179442 | 26 nov 1990 | 12 jan 1993 | 26 nov 2010 | Method and apparatus for digitally processing a high definition television augmentation signal | [184] | Unknown |
| 5991715 | 31 aug 1995 | 23 nov 1999 | 31 aug 2015 | Perceptual audio signal subband coding using value classes for successive scale factor differences | [185] | Unknown |
| 5323396 | 21 dec 1992 | 21 jun 1994 | 21 dec 2012 | Digital transmission system, transmitter and receiver for use in the transmission system | [186] | Unknown |
| 5777992 | 07 jun 1995 | 07 jul 1998 | 07 jun 2015 | Decoder for decoding and encoded digital signal and a receiver comprising the decoder | [187] | Unknown |
| 5539829 | 07 jun 1995 | 23 jul 1996 | 07 jun 2015 | Subband coded digital transmission system using some composite signals | [188] | Unknown |
| 7209565 | 23 dec 2003 | 24 apr 2007 | 23 dec 2023 | Decoding of an encoded wideband digital audio signal in a transmission system for transmitting and receiving such signal | [189] | Unknown |
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| RE37222 | 12 oct 1990 | 21 jul 1992 | 12 oct 2010 | Video signal transmitting system | Reissue of 05132792 filed 19 jul 1994 granted 12 jun 2001 [194] | Unknown |
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| RE34965 | 18 jan 1990 | 15 jan 1991 | 18 jan 2010 | Inter-frame predictive encoding system with encoded and transmitted prediction error | Reissue of 04985768 filed 14 jan 1993 granted 13 jun 1995 [197] | Unknown |
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