CRL SYSTEMS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H03G CONTROL OF AMPLIFICATION 448
 
  
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 170

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D414770 ProcessorMar 20, 97Oct 05, 99[1403]
D401774 StandMar 20, 97Dec 01, 98[0604]
D398289 Control boardMar 20, 97Sep 15, 98[1303]
5737434 Multi-band audio compressor with look-ahead clipperAug 26, 96Apr 07, 98[H03G]
5574791 Combined de-esser and high-frequency enhancer using single pair of level detectorsJun 15, 94Nov 12, 96[H03G]
5444788 Audio compressor combining feedback and feedfoward sidechain processingSep 03, 93Aug 22, 95[H03G]
5282252 Audio equalizer providing reciprocal equalization plus infinite-depth notchFeb 27, 92Jan 25, 94[H03H, H03G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6618486 Controller for FM 412 multiplex power regulationExpiredMay 02, 01Sep 09, 03[H04H]
6205225 Lower sideband modulation distortion cancellationExpiredDec 03, 97Mar 20, 01[H04B]
5168526 Distortion-cancellation circuit for audio peak limitingExpiredOct 29, 90Dec 01, 92[H04B, H03G]
5050217 Dynamic noise reduction and spectral restoration systemExpiredFeb 16, 90Sep 17, 91[H04B]
4888789 Adjustable equalizer for compensating for high frequency rolloff and typical AM receiversExpiredJan 14, 85Dec 19, 89[H03H]
4837824 Stereophonic image widening circuitExpiredMar 02, 88Jun 06, 89[H04S]
4674122 Encoding for the FMX companding systemExpiredAug 22, 86Jun 16, 87[H04H]
4525857 Crossover networkExpiredSep 04, 84Jun 25, 85[H03G]
4495643 Audio peak limiter using Hilbert transformsExpiredMar 31, 83Jan 22, 85[H04B]
4460871 Multiband cross-coupled compressor with overshoot protection circuitExpiredSep 06, 83Jul 17, 84[H03K]
4412100 Multiband signal processorExpiredSep 21, 81Oct 25, 83[H04M, H04B]
4241266 Peak-limiting apparatus for audio signalExpiredFeb 05, 79Dec 23, 80[H03L, H03K]

Top Inventors for This Owner

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