LIQUID AUDIO, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 7278
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 6441
 
  
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 493
 
  
 
H03M CODING, DECODING OR CODE CONVERSION, IN GENERAL 4107
 
  
 
H04K SECRET COMMUNICATION; JAMMING OF COMMUNICATION256
 
  
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 1197
 
  
 
G06Q DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR 1173
 
  
 
H04B TRANSMISSION 1209

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7263497 Secure online music distribution systemApr 09, 99Aug 28, 07[G06Q]
6865737 Remote software installation and maintenanceAug 23, 00Mar 08, 05[G06F]
6792113 Adaptable security mechanism for preventing unauthorized access of digital dataDec 20, 99Sep 14, 04[H04L]
6725453 Remote software installation and maintenanceAug 23, 00Apr 20, 04[G06F]
6385596 Secure online music distribution systemFeb 06, 98May 07, 02[G06F]
6367019 Copy security for portable music playersMar 26, 99Apr 02, 02[G06F]
6345100 Robust watermark method and apparatus for digital signalsOct 14, 98Feb 05, 02[H04L, H04K, G06K]
6330673 Determination of a best offset to detect an embedded patternOct 14, 98Dec 11, 01[H04L, H04K]
6330675 System and method for secure transfer of digital data to a local recordable storage mediumFeb 13, 98Dec 11, 01[H04L]
6320965 Secure watermark method and apparatus for digital signalsOct 14, 98Nov 20, 01[H04L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7185200 Server-side watermark data writing method and apparatus for digital signalsExpiredSep 02, 99Feb 27, 07[H04L]
6965994 Security mechanism for computer processing modulesExpiredJan 30, 01Nov 15, 05[H04L]
6959220 Digital audio signal filtering mechanism and methodExpiredNov 07, 97Oct 25, 05[G06F]

Top Inventors for This Owner

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