Silicon Systems, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H03K PULSE TECHNIQUE 16115
 
  
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 9129
 
  
 
H03F AMPLIFIERS 875
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 6356
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 5154
 
  
 
H03L AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES 575
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 4281
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 384
 
  
 
H03M CODING, DECODING OR CODE CONVERSION, IN GENERAL 3108
 
  
 
H04B TRANSMISSION 3207

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6563655 Method and apparatus for failsafing and extending range for write precompensationMay 20, 96May 13, 03[G11B]
6112125 Self-tuning method and apparatus for continuous-time filtersMar 08, 95Aug 29, 00[G05B]
6097320 Encoder/decoder system with suppressed error propagationJan 20, 98Aug 01, 00[H03M]
6075234 Non-contact method and apparatus to obtain a timing signal from internal integrated circuit nodesDec 22, 97Jun 13, 00[G01R]
6067335 Read channel IC for dual PLL solutionAug 02, 96May 23, 00[H04L]
6043944 Method and apparatus for failsafing and extending range for write precompensationNov 10, 97Mar 28, 00[G11B]
5995561 Method and apparatus for reducing noise correlation in a partial response channelApr 10, 96Nov 30, 99[H04L]
5939781 Thermally enhanced integrated circuit packaging systemSep 26, 96Aug 17, 99[H01L]
5917859 Method and apparatus for implementing a viterbi detector for PRML channelsJul 11, 97Jun 29, 99[H04L]
5914827 Method and apparatus for implementing a noise generator in an integrated circuit disk drive read channelFeb 28, 96Jun 22, 99[G11B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5564061 Reconfigurable architecture for multi-protocol data communications having selection means and a plurality of register setsExpiredFeb 25, 94Oct 08, 96[G06F]
5561826 Configurable architecture for serial communicationExpiredSep 11, 95Oct 01, 96[G06F]
5434800 Programmable system for the synchronization of an electronic angular position indicatorExpiredAug 08, 94Jul 18, 95[G01B]
5397978 Current limit circuit for IGBT spark drive applicationsExpiredAug 03, 92Mar 14, 95[G05F]
5317614 Programmable electronic angular position indicator based upon engineering unitsExpiredAug 26, 92May 31, 94[G07C]
5235540 Parasitic insensitive programmable biquadratic pulse slimming techniqueExpiredApr 26, 90Aug 10, 93[G06G]
5202614 Self-commutating, back-EMF sensing, brushless DC motor controllerExpiredSep 25, 89Apr 13, 93[H02K, H02P]
5202616 Bipolar or unipolar drive back-EMF commutation sensing methodExpiredNov 07, 90Apr 13, 93[H02P]
5162678 Temperature compensation control circuit for exponential gain function of an AGC amplifierExpiredSep 18, 90Nov 10, 92[H03F, G06G]
5142552 Method and apparatus for analog D.C. offset cancellationExpiredApr 10, 90Aug 25, 92[H03H]
5124669 One-shot circuit for use in a PLL clock recovery circuitExpiredSep 18, 90Jun 23, 92[H03L, H03K]
5093847 Adaptive phase lock loopExpiredDec 21, 90Mar 03, 92[H04L]
5063309 High frequency continuous time filterExpiredMar 28, 90Nov 05, 91[H03K, H04B]
5059896 Electronic watthour meterExpiredSep 25, 89Oct 22, 91[G01R]
5030924 Temperature compensated exponential gain control circuitExpiredMar 30, 89Jul 09, 91[H03F]
5006854 Method and apparatus for converting A/D nonlinearities to random noiseExpiredFeb 13, 89Apr 09, 91[H03M]
4972247 High energy event protection for semiconductor devicesExpiredJan 11, 88Nov 20, 90[H01L]
4953186 Phase jitter trackerExpiredFeb 19, 88Aug 28, 90[H04B]
4870370 Method and apparatus for two stage automatic gain controlExpiredFeb 19, 88Sep 26, 89[H03G]
4866739 Digital fast recovery timing algorithmExpiredFeb 22, 88Sep 12, 89[H04L]

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