ERICSSON GE MOBILE COMMUNICATIONS INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04B TRANSMISSION 48162
 
  
 
H04J MULTIPLEX COMMUNICATION 21104
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 20265
 
  
 
H04Q SELECTING 1892
 
  
 
H04M TELEPHONIC COMMUNICATION 12151
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 4443
 
  
 
H03D DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER 445
 
  
 
H04K SECRET COMMUNICATION; JAMMING OF COMMUNICATION454
 
  
 
H01Q AERIALS 3107
 
  
 
H03F AMPLIFIERS 380

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6400926 Radiocommunication system using geostationary and non-geostationary satellitesJun 22, 94Jun 04, 02[H04B]
6138347 Method and apparatus for the suppression of electromagnetic interference in an electronic systemNov 12, 97Oct 31, 00[H05K]
6004028 Device and method for receiving and reconstructing signals with improved perceived signal qualityAug 18, 94Dec 21, 99[H04L]
5920984 Method for the suppression of electromagnetic interference in an electronic systemOct 18, 96Jul 13, 99[G01R, H05K]
5841816 Diversity Pi/4-DQPSK demodulationMar 28, 94Nov 24, 98[H04L, H04B]
5754960 Display console and user interface for multisite RF trunked systemFeb 14, 92May 19, 98[H04B]
5752198 Single site, split location trunked radio communications systemNov 14, 94May 12, 98[H04B]
5745523 Multi-mode signal processingOct 27, 92Apr 28, 98[H04L]
5745856 Radio receiver for demodulating both wideband and narrowband modulated signalsFeb 28, 97Apr 28, 98[H04M, H04B]
5742908 Frequency error correction in a satellite-mobile communications systemSep 14, 94Apr 21, 98[H03J]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5642358 Multiple beamwidth phased arrayExpiredApr 08, 94Jun 24, 97[H04B]
5586128 System for decoding digital data using a variable decision depthExpiredNov 17, 94Dec 17, 96[G06F]
5574774 Method and apparatus of maintaining an open communications channel between a cellular terminal and an associated cellular radio networkExpiredMay 04, 94Nov 12, 96[H04Q]
5569889 Key assembly and keyboard comprising key retraction and stabilization meansExpiredMar 28, 94Oct 29, 96[H01H]
5483575 System for correlating RF usage in a trunked communication network based on channel assignments and channel drops for each callExpiredFeb 19, 93Jan 09, 96[H04Q]
D361995 Mobile radioExpiredMar 23, 93Sep 05, 95[]
5418503 Compensation of transient frequency drift in oscillator circuitsExpiredMar 08, 93May 23, 95[H03L]
5404584 Printed circuit board having modularized circuit functions designed for early diagnosticsExpiredAug 06, 90Apr 04, 95[H04B]
D356308 Mobile radio with handleExpiredMar 23, 93Mar 14, 95[]
D356316 Remote control head for mobile radioExpiredMar 23, 93Mar 14, 95[]
D356317 Control head for a mobile radioExpiredMar 23, 93Mar 14, 95[]
5384854 Co-processor controlled switching apparatus and method for dispatching consoleExpiredFeb 14, 92Jan 24, 95[H04B]
5369783 Dynamic regrouping in a trunked radio communications systemsExpiredOct 13, 93Nov 29, 94[H04B]
5365512 Multisite trunked RF communication system with reliable control messaging networkExpiredJul 02, 93Nov 15, 94[G06F, H04J]
5327580 Full duplex RF repeater/base station providing microprocessor-controlled simultaneous CTCSS tone encode/decodeExpiredJun 01, 93Jul 05, 94[H04B]
5323104 Method and arrangement for demodulating a frequency modulated signalExpiredMar 29, 93Jun 21, 94[G01R]
D347425 Portable radioExpiredJul 23, 92May 31, 94[]
D347426 Portable radio with attached batteryExpiredJul 23, 92May 31, 94[]
D347427 Portable radioExpiredJul 23, 92May 31, 94[]
D346582 Battery for portable radiosExpiredJul 23, 92May 03, 94[]

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