THOMCAST AG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H03F AMPLIFIERS 182
 
  
 
H03K PULSE TECHNIQUE 1130
 
  
 
H03L AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES 179

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5166631 Circuit for regeneration and bandwidth limitation of a quasi-periodic digital signalDec 03, 91Nov 24, 92[H03L, H03K]
5164678 Process for compensating nonlinearities in an amplifier circuitJul 11, 91Nov 17, 92[H03F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5548343 Method of signal alignment in television and device for implementing itExpiredDec 05, 94Aug 20, 96[H04N]
5488334 Air-cooled power loadExpiredApr 06, 95Jan 30, 96[H01P, H01C]
5438686 Amplitude-modulated broadcast transmitter for various types of modulation, in particular DSB, SSB and ISBExpiredMar 03, 93Aug 01, 95[H04B]
5261123 AM radio transmitter with a final stage tetrodeExpiredJan 21, 92Nov 09, 93[H04B]
5115214 Balancing loopExpiredOct 11, 90May 19, 92[H01P]
4955072 Method of generating an amplitude-modulated ISB transmission signal and apparatus for carrying out the methodExpiredAug 22, 89Sep 04, 90[H04B]
4908587 Antenna selectorExpiredJan 26, 89Mar 13, 90[H01P]
4811032 Method for monitoring and controlling an antenna selector and antenna selector for carrying out the methodExpiredOct 16, 87Mar 07, 89[H01Q]
4656440 Single-sideband modulator and broadcast transmitterExpiredJan 30, 86Apr 07, 87[H03C]
4646359 Method and apparatus for controlling the carrier of an amplitude-modulated transmitterExpiredApr 26, 85Feb 24, 87[H04B, H03F]
4633512 Amplitude-modulated transmitter with controlled carrier valueExpiredJul 24, 84Dec 30, 86[H04B]
4594634 High-voltage direct-current supply with over-current protectionExpiredJul 24, 84Jun 10, 86[H02H]
4593410 Single-sideband transmitter and method for operating this transmitterExpiredDec 20, 83Jun 03, 86[H04B, H03C]
4560944 Switching amplifier for digital power amplificationExpiredApr 18, 84Dec 24, 85[H03F]
4510457 Switching amplifierExpiredJan 10, 83Apr 09, 85[H03F]
4488121 Method and apparatus for amplifying an analog low-frequency signal by a switching amplifierExpiredJan 28, 82Dec 11, 84[H03F]
4441089 Change-over switch for coaxial conductorsExpiredJul 02, 81Apr 03, 84[H01P]
4369409 Low-frequency power amplifierExpiredAug 05, 80Jan 18, 83[H03F]
4344169 Method of connecting two short-wave transmitters in parallelExpiredApr 23, 80Aug 10, 82[H04B]
4209758 Method and apparatus for the automatic matching of a transmitter to an antennaExpiredJun 19, 78Jun 24, 80[H03H]

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