Assignee
WARNER MUSIC GROUP INC
US·15 granted patents·1 pending application·336 citations·filing 1997–2008
Top patents by PatentIndex Score
16 records- 0190US6898173B2Recording and playback of multi-channel digital audio having different resolutions for different channelsWARNER MUSIC GROUP INC·Filed 2003·Granted May 24, 2005·24 cites·10 claims
- 0288US6993509B2Method and apparatus for distributing multimedia programsWARNER MUSIC GROUP INC·Filed 2002·Granted Jan 31, 2006·28 cites·19 claims
- 0387US6298025B1Recording and playback of multi-channel digital audio having different resolutions for different channelsWARNER MUSIC GROUP INC·Filed 1998·Granted Oct 2, 2001·41 cites·3 claims
- 0485US6591420B1Remote control system for audio and video contentWARNER MUSIC GROUP INC·Filed 1999·Granted Jul 8, 2003·94 cites·17 claims
- 0584US7206766B2Method and apparatus for distributing multimedia programsWARNER MUSIC GROUP INC·Filed 2005·Granted Apr 17, 2007·6 cites·22 claims
- 0675US7203154B2Recording and playback of multi-channel digital audio having different resolutions for different channelsWARNER MUSIC GROUP INC·Filed 2004·Granted Apr 10, 2007·7 cites·7 claims
- 0774US6567359B2Recording and playback of multi-channel digital audio having different resolutions for different channelsWARNER MUSIC GROUP INC·Filed 2001·Granted May 20, 2003·7 cites·6 claims
- 0870US6177168B1DVD disc with four information layers, and method for making sameWARNER MUSIC GROUP INC·Filed 1999·Granted Jan 23, 2001·36 cites·36 claims
- 0966US6243686B1Flash memory card adapter for stereo systemsWARNER MUSIC GROUP INC·Filed 1997·Granted Jun 5, 2001·45 cites·54 claims
- 1063US7333863B1Recording and playback control systemWARNER MUSIC GROUP INC·Filed 1997·Granted Feb 19, 2008·15 cites·14 claims
- 1160US7050590B2Method and apparatus for checking audio signalsWARNER MUSIC GROUP INC·Filed 2001·Granted May 23, 2006·6 cites·16 claims
- 1260US2009074213A1Apparatus and method for down converting multichannel programs to dual channel programs using a smart coefficient generatorWARNER MUSIC GROUP INC·Filed 2008·Application pending·0 cites
- 1356US6239728B1Dual rate encoding scheme and apparatus using the sameWARNER MUSIC GROUP INC·Filed 2000·Granted May 29, 2001·2 cites·5 claims
- 1455US6522620B1Dual format optical discWARNER MUSIC GROUP INC·Filed 1999·Granted Feb 18, 2003·12 cites·29 claims
- 1550US7197458B2Method and system for verifying derivative digital files automaticallyWARNER MUSIC GROUP INC·Filed 2002·Granted Mar 27, 2007·2 cites·4 claims
- 1646US5903701AMethod and apparatus for testing the quality of recorded informationWARNER MUSIC GROUP INC·Filed 1998·Granted May 11, 1999·11 cites·25 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →