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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H03G CONTROL OF AMPLIFICATION 646
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 5280
 
  
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 5102
 
  
 
H04H BROADCAST COMMUNICATION 451
 
  
 
A61K PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES 2253
 
  
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 2196
 
  
 
H03B GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS 261
 
  
 
H03F AMPLIFIERS 281
 
  
 
H04S STEREOPHONIC SYSTEMS 229
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 183

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9584918 Dynamic volume control and multi-spatial processing protectionOct 16, 12Feb 28, 17[H04S, H04R, H03G]
9083297 Programmable-gain amplifierMay 07, 13Jul 14, 15[H03F, H03G]
8958516 NICAM decoder with output resamplerJun 19, 13Feb 17, 15[H04L, G10L, H03H]
8908872 BTSC encoderJun 02, 06Dec 09, 14[H04S, H04R, G10L, H03G, H04H]
8610469 Dynamic switch driver for low-distortion programmable-gain amplifierOct 18, 12Dec 17, 13[H03K, H03B]
8582780 Configurable recursive digital filter for processing television audio signalsOct 01, 10Nov 12, 13[H04R]
8526622 Configurable filter for processing television audio signalsSep 07, 10Sep 03, 13[H04H]
8494104 NICAM decoder with output resamplerSep 19, 11Jul 23, 13[H04L]
8416019 System and method for interpolating digitally-controlled amplifier gainAug 16, 10Apr 09, 13[H03G]
8378718 Dynamic switch driver for low-distortion programmable-gain amplifierAug 16, 10Feb 19, 13[H03K, H03B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8264606 Direct digital encoding and radio frequency modulation for broadcast television applicationsExpiredNov 09, 10Sep 11, 12[H04N, H04H]
2012/0087,502 BTSC ENCODERAbandonedDec 19, 11Apr 12, 12[H04N]
2012/0082,206 BTSC ENCODERAbandonedDec 13, 11Apr 05, 12[H04N]
2012/0075,528 BTSC ENCODERAbandonedNov 04, 11Mar 29, 12[H04N]
2011/0280,407 Compressor Based Dynamic Bass Enhancement with EQAbandonedJan 07, 11Nov 17, 11[H04R, H03G]
2011/0243,333 BTSC ENCODERAbandonedJun 29, 11Oct 06, 11[H04H]
2011/0235,705 BTSC ENCODERAbandonedJun 16, 11Sep 29, 11[H04N]
2011/0205,429 BTSC ENCODERAbandonedMay 16, 11Aug 25, 11[H04N]
2011/0134,992 BTSC ENCODERAbandonedFeb 22, 11Jun 09, 11[H04N]
7940842 Reciprocal index lookup for BTSC compatible coefficientsExpiredJun 06, 08May 10, 11[H04B]
2011/0103,466 BTSC TECHNIQUESAbandonedJan 21, 11May 05, 11[H04N]
7929054 Up-sampling television audio signals for encodingExpiredDec 29, 09Apr 19, 11[H04N]
7830452 Direct digital encoding and radio frequency modulation for broadcast television applicationsExpiredNov 30, 09Nov 09, 10[H04N]
2008/0137,871 BTSC ENCODERAbandonedAug 14, 00Jun 12, 08[H04R]
6071670 Transparent resin, photosensitive composition, and method of forming a patternExpiredOct 10, 97Jun 06, 00[G03F]
5632188 ErgopunchExpiredFeb 24, 95May 27, 97[B26F]
5511661 Plastic paper clip and integral sheet-like packaging thereofExpiredAug 16, 94Apr 30, 96[B65D]
5490440 Paper punchExpiredDec 07, 93Feb 13, 96[B26F]
5419018 Sheet of clipsExpiredNov 01, 93May 30, 95[B42F, B65D]
5403108 In binder punchExpiredNov 22, 93Apr 04, 95[B42F]

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