ZENITH ELECTRONICS CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 27215
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 18267
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 13115
 
  
 
H03M CODING, DECODING OR CODE CONVERSION, IN GENERAL 11100
 
  
 
H03H IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS 1061
 
  
 
H03D DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER 940
 
  
 
H04B TRANSMISSION 9201
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 7440
 
  
 
H03K PULSE TECHNIQUE 5126
 
  
 
H04J MULTIPLEX COMMUNICATION 5120

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8442226 Decryption key managementJan 16, 09May 14, 13[H04L]
8401189 Opportunistic use of keys during encryption/decryptionJan 16, 09Mar 19, 13[H04L]
7349470 Decision feedback equalizers with constrained feedback taps for reduced error propagationJun 03, 04Mar 25, 08[H03K]
7327790 MPEG on screen display coder for DTV interfacesJun 11, 99Feb 05, 08[H04N]
7327810 Efficient conjugate gradient based channel estimatorDec 05, 03Feb 05, 08[H03D]
7324591 Adaptive equalizerAug 17, 04Jan 29, 08[H03H]
7313182 Decision feedback equalizers with constrained feedback taps for reduced error propagationMar 19, 04Dec 25, 07[H03H]
7313208 Pre-equalization for low-cost DTV translatorsNov 03, 03Dec 25, 07[H04B]
7310354 Synchronous data link signal generatorJul 18, 02Dec 18, 07[H04J]
7310505 Attenuation control for tunersSep 09, 03Dec 18, 07[H04B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0134,274 CAMERA, ENCODER, AND MODULATOR IN SAME ENCLOSUREAbandonedFeb 18, 11Jun 09, 11[H04L, H04N, H03C]
2009/0100,485 WEB TELEVISION THAT SWAPS TELEVISION VIDEO AND INTERNET VIDEO IN A PIP AREAAbandonedOct 28, 08Apr 16, 09[H04N]
2009/0091,657 WEB TELEVISION THAT PERFORMS A PIP CONTROL FUNCTIONAbandonedOct 28, 08Apr 09, 09[H04N]
2009/0094,655 WEB TELEVISION HAVING A TWO-WAY COMMUNICATION BUS INTERCONNECTING A TELEVISION CONTROLLER AND AN INTERNET MODULEAbandonedOct 28, 08Apr 09, 09[H04N]
6980255 VSB modulator symbol clock processing to reduce jitter/phase noise and sampling artifactsExpiredOct 24, 02Dec 27, 05[H04L, H04N]
6608870 Data frame for 8 MHZ channelsExpiredMay 27, 99Aug 19, 03[H04L, H04N]
6305892 Fastening system for speaker grillesExpiredAug 12, 97Oct 23, 01[F16B]
6263451 Hardware implementation for a packet token generator of a high speed data serverExpiredApr 30, 98Jul 17, 01[G06F]
6246431 Digital television system for reducing co-channel interference in 8 MHZ channelsExpiredJan 26, 99Jun 12, 01[H04N]
6111887 Method and apparatus for power tuning a terminal of a bi-directional communications systemExpiredOct 08, 97Aug 29, 00[H04L]
6023380 Two piece curved projection lens method and apparatusExpiredSep 22, 98Feb 08, 00[G02B]
6018217 CRT funnel with compliant corners and CRT envelope incorporating sameExpiredMay 18, 92Jan 25, 00[H01J]
6013976 In-line SB electron gun with large and deep main lens aperturesExpiredJul 30, 97Jan 11, 00[H01J]
5923386 VCR channel set up for non standard tuning environmentsExpiredSep 29, 97Jul 13, 99[H04N]
5912970 Television scrambling systemExpiredApr 09, 96Jun 15, 99[H04N]
5907217 Uni-bipotential symmetrical beam in-line electron gunExpiredJul 09, 97May 25, 99[H01J]
5847933 Solderless focus moduleExpiredFeb 05, 97Dec 08, 98[H01R, H05K]
5844634 Finger-controllable remote control unitExpiredApr 23, 97Dec 01, 98[H04N]
5832790 Self cleaning wire stripper and methodExpiredMay 31, 96Nov 10, 98[H02G]
5828190 G1 High frequency drive for color cathode ray tubesExpiredMay 15, 97Oct 27, 98[H01J]

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