Patents for H04B 7 - Radio transmission systems, i.e. using radiation field (186,426) |
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01/11/1994 | US5278891 Ground-to-air telephone calling system and related method |
01/11/1994 | US5278866 Radio communication apparatus with stored coding/decoding procedures |
01/11/1994 | US5278863 Radio frequency broadcasting systems and methods using two low-cost geosynchronous satellites |
01/11/1994 | US5278835 Mobile radio communication system |
01/11/1994 | US5278833 Method for providing reserved communication access using multiple random access resources |
01/11/1994 | US5278832 Method and apparatus for controlling the timing within a transceiver |
01/11/1994 | US5278831 Information transmission system |
01/11/1994 | US5278690 Apparatus and method for synchronizing a plurality of remote transmission and receiving stations and providing automatic gain control of the synchronizing signal |
01/11/1994 | US5278568 Method of and apparatus for two-way radio communication amongst fixed base and mobile terminal users employing meteor scatter signals for communications inbound from the mobile terminals and outbound from the base terminals via Loran communication signals |
01/11/1994 | CA2029675C Carrier regenerating device correctly operable in mobile satellite communication |
01/07/1994 | CA2098259A1 Communication system employing spectrum reuse on a spherical surface |
01/06/1994 | WO1994000938A1 A method and an arrangement for frame detection quality estimation in the receiver of a radio communication system |
01/06/1994 | WO1994000932A1 Cellular communications test system |
01/06/1994 | WO1994000927A1 Power level increase during handoff command transmission |
01/06/1994 | WO1994000926A1 Method and apparatus for power estimation in an orthogonal coded communication system |
01/06/1994 | WO1994000925A1 Fault tolerant radio communication system controller |
01/06/1994 | WO1994000924A1 A method and an arrangement of estimating transmitted symbols at a receiver in digital signal transmission |
01/06/1994 | CA2136543A1 Power level increase during handoff command transmission |
01/06/1994 | CA2135176A1 Cellular communications test system |
01/06/1994 | CA2114715A1 A method and an arrangement for frame detection quality estimation in the receiver of a radio communication system |
01/05/1994 | EP0577520A1 Antenna for a secondary radar in S-mode |
01/05/1994 | EP0576532A1 Information system. |
01/05/1994 | CN2152355Y Wireless moveable telephone charger |
01/05/1994 | CN2152354Y Number and speech compatible station |
01/05/1994 | CN1080445A Method and system for enhanced data transmission in a cellular telephone system |
01/05/1994 | CN1080444A Paging system that allows caller/subscriber interconnection |
01/05/1994 | CN1080443A Cell-type telephone system with extewded cell |
01/04/1994 | USRE34499 Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system |
01/04/1994 | US5276920 In a mobile telephone |
01/04/1994 | US5276918 Mobile radio telephone with booster unit |
01/04/1994 | US5276917 Transmitter switch-on in a dual-mode mobile phone |
01/04/1994 | US5276713 Method of frame synchronization for digital mobile radio communication |
01/04/1994 | US5276685 Digital automatic gain control |
01/04/1994 | CA2099703A1 Antenna for a secondary radar operating in s-mode |
12/29/1993 | EP0576359A1 Method and apparatus for decision feedback equalisation for the block transmission of information symbols |
12/29/1993 | EP0576209A1 Remote charging cradle for cordless telephone handset |
12/29/1993 | EP0575746A1 Method and device for optimizing the radio link for a digital radio transmission system in difference of space and/or angle by varying the relative attenuation level between the two channels |
12/29/1993 | EP0575678A1 Medium-earth-altitude satellite-based cellular telecommunications system |
12/29/1993 | EP0575513A1 Electronic billboard and vehicle traffic control communication system |
12/29/1993 | EP0477183B1 Space-diversity digital radio mobile receiver and relevant process |
12/29/1993 | CN2151587Y Connector of dismountable simplex mode movable telephone |
12/29/1993 | CN1080099A A method for eliminating acoustic echo in a communication device |
12/28/1993 | US5274844 Beam pattern equalization method for an adaptive array |
12/28/1993 | US5274840 Satellite communication system |
12/28/1993 | US5274694 Radio communication network based on digital local exchanges |
12/28/1993 | US5274670 Method of equalization in digital mobile communication with improved tracking ability |
12/28/1993 | US5274665 Polyopoly overlapping spread spectrum communication system and method |
12/28/1993 | US5274627 Non-regenerative multibeam satellite communications system with FDMA access and SSTDM connectivity |
12/28/1993 | US5274626 Earth station capable of carrying out communication without a control station |
12/28/1993 | US5274388 Antenna device |
12/28/1993 | US5274369 Radio paging receiver consuming less electric power |
12/28/1993 | US5274320 Method for charging radio telephone system |
12/23/1993 | WO1993026102A1 Channel re-assignment method for time division multiple access (tdma) trunked systems |
12/23/1993 | WO1993025052A1 Voice/data radio communication system |
12/23/1993 | CA2114851A1 Adaptive communication system for transmitting voice/data |
12/22/1993 | EP0575246A1 Isofrequency broadcasting of a single program with sequence of antennas having orthogonal polarisation for two consecutives antennas |
12/22/1993 | EP0575203A1 Antenna switching circuit for a diversity receiver |
12/22/1993 | EP0574751A2 Equaliser circuit for radio signals |
12/22/1993 | CN2150679Y Simplex wireless movable communication telephone |
12/22/1993 | CN1023283C Synchronizing method in mobile radio system |
12/21/1993 | CA2018263C Mobile telephone device for carrying out an aging operation without interference with a mobile telephone system |
12/21/1993 | CA2001339C Repeater for a controlled radio system |
12/15/1993 | EP0573856A1 Radio transceiver |
12/15/1993 | EP0573841A1 Radio paging receiver capable of establishing clock synchronization even in the absence of a preamble signal |
12/15/1993 | EP0573417A1 Shared-carrier frequency-hopping. |
12/15/1993 | CN1023182C Power-saving type calling receiver |
12/15/1993 | CN1023177C High bit rate communication system for overcoming multipath interference |
12/14/1993 | US5271043 Device and method for the data transmission or storage optimizing the use of the pass-band |
12/14/1993 | US5270721 Planar antenna |
12/14/1993 | US5270669 Local oscillating frequency synthesizer for use in a TDMA system |
12/14/1993 | CA2045693C Satellite based simulcast paging system |
12/09/1993 | WO1993025022A1 Data communication receiver having burst error protected data synchronization |
12/09/1993 | WO1993025019A1 Compensator for interference between cross polarizations and cross polarization interference eliminator using the compensator |
12/09/1993 | CA2136864A1 Data communication receiver having burst error protected data synchronization |
12/08/1993 | EP0573073A2 Transmitter power level control device with bias stabilization |
12/08/1993 | EP0573072A2 Power control device for controlling the output level in digitally modulated radio signals |
12/08/1993 | EP0572859A1 Method and device for automatic gain control in a space/angle diversity digital radio receiver |
12/08/1993 | EP0572858A1 Method for minimizing the the IF-estimated bit error rate function in a space/angle diversity digital radio receiver |
12/08/1993 | EP0341238B1 Automatic antenna tuning system for portable communication devices |
12/08/1993 | CN1079348A Mobile data terminal with external antenna |
12/08/1993 | CN1079347A Cell Extension in a cellular telephone system |
12/07/1993 | US5268933 Data packet alignment in a communication system |
12/07/1993 | US5268694 Communication system employing spectrum reuse on a spherical surface |
12/01/1993 | EP0572171A1 Method and apparatus for providing time diversity for multipath fading channels |
12/01/1993 | EP0571919A1 Demodulating apparatus using transversal equalizer and decision feedback type equalizer |
12/01/1993 | EP0571847A1 Pager with low power consumption |
12/01/1993 | EP0571745A1 Cellular mobile radio system with multiplicity of CDMA carriers for ISDN applications |
12/01/1993 | EP0571740A1 TDMA communications between satellites, with distance dependant transmission duration |
12/01/1993 | EP0536334A4 System and method for generating signal waveforms in a cdma cellular telephone system |
11/30/1993 | US5267297 Base station for a radio communication system |
11/30/1993 | US5267268 Method for reducing the risk of poor reception in a mobile telephony system |
11/30/1993 | US5267262 Transmitter power control system |
11/28/1993 | CA2096201A1 Safety phone |
11/28/1993 | CA2095960A1 Receiver for local calls with low energy consumption |
11/27/1993 | CA2092743A1 Simultaneous tdma communication system |
11/25/1993 | WO1993023935A1 Mobile radio network with central cell beaming |
11/25/1993 | WO1993023767A1 Electronic system and method for remote identification of coded articles and the like |
11/24/1993 | EP0571124A1 Mobile data terminal |
11/24/1993 | EP0571104A2 Data transmission in a cellular telephone system |
11/24/1993 | EP0571029A2 Mobile radio system with group call handover |