ERICSSON GE MOBILE COMMUNICATIONS HOLDING INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 3444
 
  
 
H04B TRANSMISSION 3207
 
  
 
H04J MULTIPLEX COMMUNICATION 2123
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 1158
 
  
 
H04K SECRET COMMUNICATION; JAMMING OF COMMUNICATION157
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 1284
 
  
 
H04Q SELECTING 1109

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5404355 Method for transmitting broadcast information in a digital control channelOct 05, 92Apr 04, 95[H04Q, H04B, H04J]
5357454 Fast walsh transform processorJul 25, 91Oct 18, 94[G06F]
5345598 Duplex power control system in a communication networkApr 10, 92Sep 06, 94[H04B]
5237586 Rake receiver with selective ray combiningMar 25, 92Aug 17, 93[H04L, H04J]
5230003 Decoding system for distinguishing different types of convolutionally-encoded signalsFeb 08, 91Jul 20, 93[G06F]
5220275 Accumulator phase digitizerJul 26, 91Jun 15, 93[G01R]
5218619 CDMA subtractive demodulationAug 02, 91Jun 08, 93[H04K]
5187675 Maximum search circuitSep 18, 91Feb 16, 93[G06F]
5175871 Power amplifier for a cellular telephoneAug 08, 91Dec 29, 92[H04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5361403 AM-FM transmitter power amplifierExpiredMay 17, 93Nov 01, 94[H04B, H03F, H03G]
5276764 Method and device for compressing and expanding an analog signalExpiredJun 12, 91Jan 04, 94[G10L]
D337984 Battery for a portable telephoneExpiredMay 01, 91Aug 03, 93[]
5179724 Conserving power in hand held mobile telephones during a receiving mode of operationExpiredJan 15, 91Jan 12, 93[H04B]
5151919 CDMA subtractive demodulationExpiredDec 17, 90Sep 29, 92[H04K]
5066927 Dual modulus counter for use in a phase locked loopExpiredSep 06, 90Nov 19, 91[H03K]

Top Inventors for This Owner

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