MULTIMEDIA PATENT TRUST C/O

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 295
 
  
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 2240
 
  
 
H03M CODING, DECODING OR CODE CONVERSION, IN GENERAL 1110
 
  
 
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
5699485 Pitch delay modification during frame erasuresJun 07, 95Dec 16, 97[G10L, H04B]
5664055 CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicityJun 07, 95Sep 02, 97[G10L]
5563593 Video coding with optimized low complexity variable length codesMar 18, 94Oct 08, 96[H03M]
5500678 Optimized scanning of transform coefficients in video codingMar 18, 94Mar 19, 96[H04N]
5227878 Adaptive coding and decoding of frames and fields of videoNov 15, 91Jul 13, 93[H04N]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5136377 Adaptive non-linear quantizerExpiredDec 11, 90Aug 04, 92[H04N]
4958226 Conditional motion compensated interpolation of digital motion videoExpiredSep 27, 89Sep 18, 90[H04N]
4910781 Code excited linear predictive vocoder using virtual searchingExpiredJun 26, 87Mar 20, 90[G10L]
4383272 Video signal interpolation using motion estimationExpiredApr 13, 81May 10, 83[H04N]

Top Inventors for This Owner

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