| Patents for H04B 1 - Details of transmission systems, not covered by a single one of groups; Details of transmission systems not characterised by the medium used for transmission (188,568) |
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| 12/30/1997 | US5703539 Apparatus and method for controlling the loop bandwidth of a phase locked loop |
| 12/30/1997 | US5703536 Liquid cooling system for high power solid state AM transmitter |
| 12/30/1997 | CA2116615C Two-frequency impedance matching circuit for an antenna |
| 12/29/1997 | EP0814609A2 Method of configuring a communication system |
| 12/29/1997 | EP0814581A2 CDMA communication method and group spreading modulator |
| 12/29/1997 | EP0814573A2 Path-diversity CDMA reception by detecting lower-peak correlation sequence following removal of higher-peak sequences |
| 12/29/1997 | EP0814571A2 Broadcastreceiver with integrated telephone device |
| 12/29/1997 | EP0814570A2 Receiver with an antenna switch, in which sensitivity and quality of reception is improved |
| 12/29/1997 | EP0814569A1 Receiver with dynamic attenuation control for adaptive intermodulation performance enhancement |
| 12/29/1997 | EP0814568A1 Wireless telephone intermodulation performance enhancement techniques |
| 12/29/1997 | EP0814567A2 Intermodulation performance enhancement by dynamically controlling RF amplifier current |
| 12/29/1997 | EP0814566A1 Radio receiver, especially car radio, with telephone |
| 12/29/1997 | EP0814538A1 Integrated flat antenna and radio frequency unit for point-to-point microwave radio communications |
| 12/29/1997 | EP0814533A2 Directional antenna for radio telephone |
| 12/29/1997 | EP0814458A2 Improvements in or relating to speech coding |
| 12/29/1997 | EP0814452A2 Telecommunications transmitter and device for projecting visual information |
| 12/29/1997 | EP0813777A1 Low-power two-way wireless communication system for electronic shelf labels |
| 12/29/1997 | EP0813772A1 Dual channel fm receiver with on demand information services |
| 12/29/1997 | EP0813771A1 A subscriber unit for use in a multiple access communication system |
| 12/29/1997 | EP0813770A1 Radio frequency signal reception using frequency shifting by discrete-time sub-sampling down-conversion |
| 12/29/1997 | EP0813768A1 Slope, drift and offset compensation in zero-if receivers |
| 12/29/1997 | EP0813698A1 Synchronization system for a shared channel communication system |
| 12/29/1997 | EP0813689A1 Differential ranging for a frequency-hopped remote position determination system |
| 12/29/1997 | EP0530342B1 Dynamic range compression |
| 12/27/1997 | CA2208921A1 Digital mobile telephone |
| 12/24/1997 | WO1997049216A1 Improved coding system for digital transmission compression |
| 12/24/1997 | WO1997049212A2 Apparatus and method of determining symbol rate and a carrier frequency |
| 12/24/1997 | WO1997049199A2 Transmitter diversity assembly and associated method for radio transmitter |
| 12/24/1997 | WO1997049197A1 Control of transmission power in wireless packet data transfer |
| 12/24/1997 | WO1997049195A1 Method for transmitting a pilot signal, and a cellular radio system |
| 12/24/1997 | WO1997049194A1 Connectorized antenna for wireless lan pcmcia card radios |
| 12/24/1997 | WO1997049191A1 Reduced emf hazard cellular phone |
| 12/24/1997 | WO1997049171A2 Dsp implementation of a cellular base station receiver |
| 12/24/1997 | WO1997049140A2 Integrated filter |
| 12/24/1997 | WO1997039535A3 Bandwidth management system for a remote repeater network |
| 12/24/1997 | WO1997037456A3 Using orthogonal waveforms to enable multiple transmitters to share a single cdm channel |
| 12/24/1997 | CN1168751A Method for substituting bar speech frames in digital communication system |
| 12/24/1997 | CN1168624A Signal processing apparatus |
| 12/24/1997 | CN1168615A Radio communication apparatus with adjustable alert tone |
| 12/24/1997 | CN1168611A Transmitting/receiving apparatus using plurality of spreading codes |
| 12/24/1997 | CN1168599A Radio frequency device |
| 12/24/1997 | CN1168582A 分集接收机 Diversity Receiver |
| 12/24/1997 | CN1168578A Device for receiving programmes sent via satellite or MMDS station |
| 12/24/1997 | CN1168574A Digital radio communication system having reduced phase-locked loop, and its synchronization |
| 12/24/1997 | CA2258682A1 Improved coding system for digital transmission compression |
| 12/24/1997 | CA2258537A1 Connectorized antenna for wireless lan pcmcia card radios |
| 12/24/1997 | CA2257906A1 Integrated filter |
| 12/23/1997 | US5701603 Radio apparatus having a plurality of antennas |
| 12/23/1997 | US5701602 For controlling frequency of an input signal |
| 12/23/1997 | US5701601 Receive signal level detection system |
| 12/23/1997 | US5701598 Scanning receiver with direct digital frequency synthesis and digital signal processing |
| 12/23/1997 | US5701597 Portable electronic device and method for supplying current to different loads |
| 12/23/1997 | US5701596 Modular interconnect matrix for matrix connection of a plurality of antennas with a plurality of radio channel units |
| 12/23/1997 | US5701595 Half duplex RF transceiver having low transmit path signal loss |
| 12/23/1997 | US5701594 Transmitter/receiver for a TDMA system using common IF SAW filter |
| 12/23/1997 | US5701591 Multi-function interactive communications system with circularly/elliptically polarized signal transmission and reception |
| 12/23/1997 | US5701587 Radio calling method and apparatus for removing near-far problem |
| 12/23/1997 | US5701515 Interface for switching plurality of pin contacts to transmit data line and plurality of pin contacts to receive data line to interface with serial controller |
| 12/23/1997 | US5701389 Method of encoding a portion of an audio signal |
| 12/23/1997 | US5701345 Multipath interference reduction system and method |
| 12/23/1997 | US5701329 Standby power savings with cumulative party check in mobile phones |
| 12/23/1997 | US5701328 Chirped spread spectrum positioning system |
| 12/23/1997 | US5701129 For a radio telephone |
| 12/21/1997 | CA2208397A1 Local multichannel distribution system including telephone line switching system |
| 12/21/1997 | CA2208189A1 Portable emergency response communications system and method |
| 12/18/1997 | WO1997048222A1 Bracelet telephone device |
| 12/18/1997 | WO1997048195A1 Method for frequency locking onto a pilot reference signal affected by multipath fading |
| 12/18/1997 | WO1997048192A1 Process for separating a received mixture of signals |
| 12/18/1997 | WO1997048189A1 Implementation protocol for shn-based algorithm restoration platform |
| 12/18/1997 | WO1997048188A1 Method and apparatus for communicating information |
| 12/18/1997 | WO1997048187A1 Printed circuit board having integrated broadside microwave coupler |
| 12/18/1997 | WO1997048179A1 Oscillator-transmitter with shared output circuit |
| 12/18/1997 | WO1997048165A1 Accumulator device for an electrical and/or electronic apparatus and telecommunication terminal comprising such a device |
| 12/18/1997 | WO1997048147A1 Mobile cradle antenna and heat sink combination |
| 12/18/1997 | WO1997048082A1 Displaying data transmitted by radio |
| 12/18/1997 | DE19725438A1 Regelung der Übertragungsleistung bei drahtloser Paket-Datenübertragung Control the transmission power in wireless packet data transmission |
| 12/18/1997 | DE19625581A1 Emergency radio telephone apparatus e.g. for keeping in contact with children |
| 12/18/1997 | DE19623667A1 Principle information detection method for receiver in DS-CDMA system |
| 12/18/1997 | CA2257980A1 Method and apparatus for communicating information |
| 12/17/1997 | EP0813315A2 Spread spectrum QAM transmission |
| 12/17/1997 | EP0813314A2 Direct-sequence code division multiple access receiver |
| 12/17/1997 | EP0813313A2 Mobile communication receiving apparatus |
| 12/17/1997 | EP0813312A2 Multiband mobile unit communication apparatus |
| 12/17/1997 | EP0813311A2 Antenna matching circuit switching system in TDMA portable telephone |
| 12/17/1997 | EP0813310A1 Method and arrangement relating to signal transmission |
| 12/17/1997 | EP0813302A1 Broadcasting signal receiver |
| 12/17/1997 | EP0812503A2 Cellular communication system with dynamically modified data transmission parameters |
| 12/17/1997 | EP0812499A2 A method for estimating signal and noise quality, and a receiver |
| 12/17/1997 | EP0812498A1 Mobile phone and interface configuration in a mobile phone |
| 12/17/1997 | EP0812497A2 Radio frequency transceiver system for digital communication |
| 12/17/1997 | EP0812492A1 Dual audio program system |
| 12/17/1997 | EP0812449A1 Alarm sensor multiplexing |
| 12/17/1997 | EP0812270A1 Transponder and sensor apparatus for sensing and transmitting vehicle tire parameter data |
| 12/17/1997 | CN2271072Y Wireless telephone charger base with broadcasting function |
| 12/17/1997 | CN1168206A Process for transmitting spoken information |
| 12/17/1997 | CN1168205A DAB receiver, apparatus and method for format conversion of DAB data sequence |
| 12/17/1997 | CN1168204A Method and apparatus for suppressing noise in communication system |
| 12/17/1997 | CN1168203A Interface for external communication source to radio |
| 12/17/1997 | CN1168040A Wireless communication apparatus and method |
| 12/17/1997 | CN1168037A Portable telephone use limiting system and portable telephone |