International Mobile Machines

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
H04B TRANSMISSION 3207
 
 
 
H04Q SELECTING 1109

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5212830 Radio frequency communications systemMay 31, 91May 18, 93[H04Q, H04B]
5159705 Frequency synthesizer circuitMar 13, 92Oct 27, 92[H04B]
5146473 Subscriber unit for wireless digital subscriber communication systemFeb 20, 91Sep 08, 92[H04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5235670 Multiple impulse excitation speech encoder and decoderExpiredOct 03, 90Aug 10, 93[G10L]
5177741 Subscriber unit for wireless digital telephone systemExpiredOct 12, 88Jan 05, 93[H04J]
5168507 Automatic adaptive equalizerExpiredNov 09, 89Dec 01, 92[H03H]
5121391 Subscriber RF telephone system for providing multiple speech and/or data singals simultaneously over either a single or a plurality of RF channelsExpiredNov 20, 89Jun 09, 92[H04J]
5119375 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channelsExpiredDec 27, 90Jun 02, 92[H04J]
5072308 Communication signal compression system and methodExpiredNov 26, 90Dec 10, 91[H04N]
5067141 Interpolator for varying a signal sampling rateExpiredOct 10, 89Nov 19, 91[H04L]
5022024 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channelsExpiredMay 08, 89Jun 04, 91[H04J]
5008900 Subscriber unit for wireless digital subscriber communication systemExpiredAug 14, 89Apr 16, 91[H04B]
4996697 Deglitching means for digital communication systemsExpiredOct 12, 88Feb 26, 91[H04B]
4994802 Subscriber unit for wireless digital telephone systemExpiredOct 12, 88Feb 19, 91[H03M]
4974099 Communication signal compression system and methodExpiredJun 21, 89Nov 27, 90[H04N]
4953197 Combination spatial diversity systemExpiredDec 08, 88Aug 28, 90[H04B]
4943983 Subscriber unit for wireless digital telephone systemExpiredOct 12, 88Jul 24, 90[H04L]
4940956 Band-pass filter and support structure thereforExpiredSep 21, 88Jul 10, 90[H01P]
4935927 Base station emulatorExpiredNov 20, 87Jun 19, 90[H04J]
4912705 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channelsExpiredMar 16, 89Mar 27, 90[H04J]
4893317 Digital signals and frequency correction in a digital wireless systemExpiredOct 12, 88Jan 09, 90[H04L]
4881240 AM equalizer circuit for digital systemsExpiredOct 12, 88Nov 14, 89[H03K, H03H]
4862107 Frequency synthesizer for broadcast telephone system having multiple assignable frequency channelsExpiredJun 27, 88Aug 29, 89[H03L]

View all patents..

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.