National Transcommunications Limited

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04J MULTIPLEX COMMUNICATION 1124
 
  
 
H04K SECRET COMMUNICATION; JAMMING OF COMMUNICATION157
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 1284

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5488632 Transmission and reception in a hostile interference environmentOct 29, 92Jan 30, 96[H04L, H04K]
5345440 Reception of orthogonal frequency division multiplexed signalsJan 07, 93Sep 06, 94[H04J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5629742 Compatible non linear pre-emphasis for composite video signalsExpiredJun 22, 93May 13, 97[H04N]
5535246 Method of video noise reduction using non-linear pre/de-emphasisExpiredFeb 03, 93Jul 09, 96[H04N]
5355379 Error protection for VLC coded dataExpiredJan 07, 93Oct 11, 94[H04L, G06F]
5027210 Noise reduction in high definition television signalsExpiredJun 16, 89Jun 25, 91[H04N]

Top Inventors for This Owner

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