Patents
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)
07/1998
07/28/1998US5787111 Transportable communication system
07/28/1998US5787090 Audio data system with a first information sub-channel, extraction means for extracting said information, and packetizer means for supplementing said audio in a second information sub-channel, and attacher station and user station for use in such a system
07/28/1998US5787079 Method and apparatus for creating multiple subchannels in a single two-way radio channel
07/28/1998US5786991 Cellular telephone
07/28/1998US5786770 Message handling in a telecommunications network
07/28/1998US5786728 Cuber based predistortion circuit and mobile station using the same
07/28/1998US5786626 Thin radio frequency transponder with leadframe antenna structure
07/28/1998CA2092495C Communication system
07/24/1998CA2226430A1 Simple dual-frequency antenna
07/23/1998WO1998032263A2 High-data-rate supplemental channel for cdma telecommunications system
07/23/1998WO1998032253A2 Method of, and apparatus for, processing low power pseudo-random code sequence signals
07/23/1998WO1998032248A1 Signalling system
07/23/1998WO1998032239A2 Jamming suppression of spread spectrum antenna/receiver systems
07/23/1998WO1998032238A2 Transponder communication device
07/23/1998WO1998032237A2 Transponder communication device
07/23/1998WO1998032236A1 Radio system and methods for duplex operation
07/23/1998WO1998032235A2 Receiver apparatus for two frequency bands
07/23/1998WO1998032234A1 Antenna circuit
07/23/1998WO1998032233A2 Multi-tuner receiver
07/23/1998WO1998023021A3 A battery pack for a portable electric apparatus and a method for the charging thereof
07/23/1998WO1998021836A3 Receiving method, and receiver
07/23/1998WO1998020635A3 A radio receiver for receiving a main radio broadcast signal and a monolythic integrated circuit for use in such radio receiver
07/23/1998DE19701839A1 Radiation exposure reduction arrangement for mobile telephone
07/23/1998DE19701459A1 Broadcasting signal receiver with two independently operating tuner circuits
07/23/1998DE19700500A1 Television set with remote control
07/23/1998CA2277375A1 Signalling system
07/23/1998CA2277071A1 High-data-rate supplemental channel for cdma telecommunications system
07/22/1998EP0854650A2 Method for addressing a service in digital video broadcasting
07/22/1998EP0854598A2 Co-channel interference detector for a broadcast receiver
07/22/1998EP0854592A2 Digital messaging method and apparatus for spread spectrum communications under extremes of digital messages readability
07/22/1998EP0854589A2 Adaptive antenna diversity receiver
07/22/1998EP0854586A2 Quadrature spread spectrum signal demodulation
07/22/1998EP0854585A2 RF transceiver
07/22/1998EP0854584A2 Accessory device for a portable radio telephone
07/22/1998EP0854583A1 Portable device battery technique
07/22/1998EP0854582A1 Click noise reduction method in a data transmission system
07/22/1998EP0854535A2 Antenna apparatus
07/22/1998EP0853846A2 Radio receiver with a memory for transmission frequencies and codes associated to said frequencies
07/22/1998EP0853842A1 Encoding of a plurality of information signals
07/22/1998EP0853828A1 Multi-axis vertically corrected antenna for handheld wireless communications devices
07/22/1998EP0696392B1 Method and device for automatically controlling gain in receiver circuits
07/22/1998EP0515675B1 Synchronous spread-spectrum communications system and method
07/22/1998CN1188572A N-channel transmission, compatible with 2-channel transmission and 1-channel transmission
07/22/1998CN1188571A 7-channel transmission, compatible with 5-channel transmission and 2-channel transmission
07/22/1998CN1188565A Antenna coupler for portable radiotelephone
07/22/1998CN1188356A Terminal unit for use with radio system and searching method
07/22/1998CN1188353A Interference canceller equipment and interference cancelling method for use in multibeam-antenna communication system
07/22/1998CN1188351A Housing intelligent telephone with telecord
07/22/1998CN1188350A Radio receiver having temperature-compensated voltage-controlled crystal oscillator
07/22/1998CN1188349A Multistage interference canceller
07/22/1998CN1188293A Method and device for managing status/alarm message of GPS receiver and broadcasting system time
07/21/1998US5784691 RDS-TMC broadcast receiver
07/21/1998US5784690 Transceiver measuring battery voltage when receiving in a TDMA system
07/21/1998US5784689 Output control circuit for transmission power amplifying circuit
07/21/1998US5784688 Portable radio communication device with a rotary control knob assembly
07/21/1998US5784687 Transmitting-receiving circuit for radiocommunication apparatus, semiconductor integrated circuit device including the circuit, and radiocommunication apparatus including the same
07/21/1998US5784686 IQ combiner technology in modulated backscatter system
07/21/1998US5784533 Arrangement for determining a signal spectrum of a wideband digital signal and for deriving bit allocation information in response thereto
07/21/1998US5784472 Process and circuitry for the supplying of loudspeakers and other electrical consumers in vehicle doors with signals
07/21/1998US5784466 Co-channel interference detector
07/21/1998US5784465 Stereo receiver
07/21/1998US5784418 Dual band digital broadcast receiver
07/21/1998US5784414 Receiver with quadrature decimation stage, method of processing digital signals
07/21/1998US5784403 Spread spectrum correlation using saw device
07/21/1998US5784366 Wideband code-division-multiple access system and method
07/21/1998US5784364 Multiple path delay time searcher in reverse link communication channel of a communication system employing a code division multiple access method
07/21/1998US5784293 Apparatus and method for determining transmitted modulation symbols
07/21/1998US5783989 For monitoring a protected area and sounding an alarm
07/21/1998US5783976 Composite high frequency apparatus and method of forming same
07/21/1998US5783968 RF amplifier method and apparatus
07/21/1998US5782646 Combined connector contact
07/21/1998US5782548 Image projection system and a method of controlling a projected pointer
07/21/1998CA2096402C High-speed facility protection in a digital telecommunications system
07/16/1998WO1998031192A1 Speaker porting for a communication device
07/16/1998WO1998031131A1 Multimedia terminal device
07/16/1998WO1998031121A2 Communication bus system
07/16/1998WO1998031109A1 Signal combining device and method for radio communication
07/16/1998WO1998031108A2 A radio front-end circuit
07/16/1998WO1998031094A1 Frequency synthesizer circuit for mobile stations
07/16/1998WO1998031067A1 Dual band antenna
07/16/1998WO1998030919A2 Enhancing sensitivity in compressive receivers
07/16/1998WO1998025424A3 Mobile telephone
07/16/1998WO1998018280A3 Random access in a mobile telecommunications system
07/16/1998DE19735798C1 Transceiver device for mobile radio telephone
07/16/1998DE19700356A1 Radio communications device
07/16/1998CA2226092A1 Co-channel interference detector
07/15/1998EP0853392A2 Subcarrier frequency division multiplexing of modulated backscatter signals
07/15/1998EP0853391A2 Method and apparatus for enhancing transmitter circuit efficiency of mobile radio units
07/15/1998EP0853389A2 Terminal unit using Rake receiver and searching method
07/15/1998EP0853388A2 Phase correction method and apparatus for wireless spread spectrum receiver
07/15/1998EP0853387A2 Method and apparatus for transmitting and receiving multichannel signals
07/15/1998EP0853382A2 Time spread root nyquist filter
07/15/1998EP0853348A2 Waveguide input apparatus of two orthogonally polarized waves including two probes attached to a common board
07/15/1998EP0853301A2 A remote control apparatus and a system therefor
07/15/1998EP0853288A2 Encryption for modulated backscatter systems
07/15/1998EP0853245A2 Modulated backscatter sensor system
07/15/1998EP0852866A2 Receiver architecture for the receiving of angle-modulated/ angle-keyed carrier signals
07/15/1998EP0852822A1 Magnetically driven vertically correcting antenna for portable telephones
07/15/1998EP0697155B1 Wireless data transceiver
07/15/1998CN2286357Y Antiloosing & antitheft alarmer for mobile phone