CIF LICENSING, LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04B TRANSMISSION 13197
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 9276
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 4443
 
  
 
H04M TELEPHONIC COMMUNICATION 3160
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 298
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 1119
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 186
 
  
 
H03K PULSE TECHNIQUE 1130
 
  
 
H03M CODING, DECODING OR CODE CONVERSION, IN GENERAL 1110

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7085316 Method and apparatus for the control of modem transmit powerFeb 04, 00Aug 01, 06[H04B]
7061973 Data mode signaling system for PCM modem adaptationFeb 03, 00Jun 13, 06[H04B]
6674794 System and method for sampling phase adjustment by an analog modemFeb 04, 00Jan 06, 04[H04L, H04B]
6594306 Method and apparatus for a start-up procedure for digital and analog modems utilizing pulse code modulation for data transmissionSep 03, 99Jul 15, 03[H04B]
6456651 Method and apparatus for adjustment of the sampling phase in a PCM modem system using a dual-phase probing signalFeb 04, 00Sep 24, 02[H04L, H04B]
6418170 Method and apparatus for achieving 180.degree. phase invariant transmission in a PCM modem systemFeb 07, 00Jul 09, 02[H04B]
6408021 PCM modem adaptation system utilizing a silence periodFeb 03, 00Jun 18, 02[H04B]
6266376 System and method for adjusting PCM data frames for robbed bit signaling in a telephone networkFeb 04, 00Jul 24, 01[H04B]
6232809 Differential input comparator with double sided hysteresisJun 30, 00May 15, 01[H03K]
6198776 Device and method for precoding data signals for PCM transmissionDec 29, 97Mar 06, 01[H04L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5214672 Trellis precoding for fractional bits/baudExpiredApr 06, 90May 25, 93[H04L]
5150381 Trellis shaping for modulation systemsExpiredOct 13, 89Sep 22, 92[H04L]
5130993 Transmitting encoded data on unreliable networksExpiredDec 29, 89Jul 14, 92[G06F]
5093720 Motion compensation for interlaced digital television signalsExpiredAug 20, 90Mar 03, 92[H04N]
5091782 Apparatus and method for adaptively compressing successive blocks of digital videoExpiredApr 09, 90Feb 25, 92[H04N]
5068724 Adaptive motion compensation for digital televisionExpiredJun 15, 90Nov 26, 91[H04N]
5048054 Line probing modemExpiredMay 12, 89Sep 10, 91[H04B]
5040191 Partial response channel signaling systemsExpiredJul 10, 90Aug 13, 91[H04L]
4965641 Processor modemExpiredMay 17, 89Oct 23, 90[H04B]
4931250 Multimode modemExpiredMay 12, 88Jun 05, 90[H04B]
4755998 Coded modulation systemExpiredSep 25, 86Jul 05, 88[H04L, G06F]
4756007 Adaptive communication rate modemExpiredMar 08, 84Jul 05, 88[H04L]
4733159 Charge pump voltage regulatorExpiredOct 28, 86Mar 22, 88[G05F]
4713817 Multidimensional, convolutionally coded communication systemsExpiredApr 25, 85Dec 15, 87[G06F]
4623833 Alternator system multifunction fault detectorExpiredDec 31, 84Nov 18, 86[H02J]

Top Inventors for This Owner

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