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)
05/1998
05/14/1998WO1998020628A1 Aperture-to-receiver gain equalization in multi-beam receiving systems
05/14/1998WO1998020625A1 Method for wireless information transfer
05/14/1998WO1998020624A1 Method of transmission and device to carry out said method
05/14/1998WO1998020623A2 System and method of downconversion where the received signal is downconverted
05/14/1998WO1998020622A1 Modular radiotelephone
05/14/1998WO1998020621A1 Programmable voltage source
05/14/1998WO1998020620A1 Method and apparatus for reducing standby current in communications equipment
05/14/1998WO1998020578A1 Small antenna for portable radio equipment
05/14/1998WO1998020577A2 A radio telephone with high antenna efficiency
05/14/1998WO1998020363A1 Contactless data transmission and receiving device with a synchronous demodulator
05/14/1998WO1998020362A1 Measuring or security system
05/14/1998WO1998019591A1 Method for wireless communication transfer with an implanted medical device
05/14/1998WO1998011689A3 Method of cryptological authentification in a scanning identification system
05/14/1998WO1998011676A3 Coherent demodulation with decision-directed channel estimation for digital communication
05/14/1998WO1998010540A3 Data transmission method, and radio system
05/14/1998DE19720019A1 Linearer Leistungsverstärker und Verfahren zu seinem Betrieb Linear power amplifier and method for its operation
05/14/1998DE19719115A1 Squelch circuit for removing noise in data signal
05/14/1998DE19646875A1 Operating device with key-operated control panel for electronic apparatus in vehicle esp telephone, radio and air-conditioning
05/14/1998DE19646628A1 Bidirectional communication system with redundancy function
05/14/1998DE19646164A1 Verfahren zur Übertragung digitaler Signale Method for transmitting digital signals
05/14/1998DE19645259A1 Mobilfunktelefonsystem Mobile phone system
05/14/1998CA2271058A1 Multiple user profile remote control
05/14/1998CA2242042A1 Aperture-to-receiver gain equalization in multi-beam receiving systems
05/13/1998EP0841834A2 Method and apparatus for a hitless switch-over between redundant signals
05/13/1998EP0841793A1 Portable telephone apparatus with a microphone mounted on a sliding portion
05/13/1998EP0841790A1 Method for dynamic allocation of voice and image compression
05/13/1998EP0841757A1 Compander-type dynamic noise suppression device
05/13/1998EP0841756A2 An improved correlator circuit for a six-port receiver
05/13/1998EP0841755A1 Power saving and sensitive RF receiver having unconditional stability
05/13/1998EP0841448A1 Method for charging a transponder
05/13/1998EP0840975A1 Assessment of signal quality
05/13/1998EP0840960A1 Method and apparatus for cdma signal orthogonalization
05/13/1998EP0840959A1 Method and apparatus for indicating an operable or non-operable connection between a portable radio and a vehicle kit
05/13/1998EP0840920A1 Remote control device for an entertainment system
05/13/1998EP0584312B1 Rf power amplifier with linearizattion
05/13/1998CN1181851A Joint demodulation using spatial maximum likelihood
05/13/1998CN1181814A Radio-interrogatable sensor using surface wave tech.
05/13/1998CN1181686A Cellular phone with facsimile function
05/13/1998CN1181670A Method for dynamic allocation of voice and image compression
05/13/1998CN1181666A Radio Communication system
05/13/1998CN1038380C Control circuit for a spatial stereo expander
05/13/1998CN1038379C Selective calling reception appts.
05/13/1998CA2220763A1 Remotely controlled blind arrangement
05/12/1998US5752225 Method and apparatus for split-band encoding and split-band decoding of audio information using adaptive bit allocation to adjacent subbands
05/12/1998US5752224 Information encoding method and apparatus, information decoding method and apparatus information transmission method and information recording medium
05/12/1998US5752205 Adaptable portable radio
05/12/1998US5752204 Antenna assembly for radiotelephonic device
05/12/1998US5752201 Mobile terminal having power saving mode that monitors specified numbers of filler messages
05/12/1998US5752200 Modular interconnect matrix for matrix connection of a plurality of antennas with a plurality of radio channel units
05/12/1998US5752193 Method and apparatus for communicating in a wireless communication system
05/12/1998US5752180 Converter for processing RF signals having different polarizations
05/12/1998US5752179 Selective RF circuit with varactor tuned and switched bandpass filters
05/12/1998US5752178 Waveform identity discriminating circuit
05/12/1998US5752177 Radio receiver, in particular a vehicle radio receiver
05/12/1998US5752176 FM radio receiver and signal processing device used therein
05/12/1998US5752174 Radio receiver with automatic adjustment of oscillation frequencies
05/12/1998US5752172 Distributed transmitter output power control circuit and method for a radio telephone
05/12/1998US5752171 Transmission level control system with selectively fixed or variable amplication control
05/12/1998US5752170 Transmitters for radio telephone base stations
05/12/1998US5752169 Integrated circuit and transmitter/receiver
05/12/1998US5752164 Autonomous remote measurement unit for a personal communications service system
05/12/1998US5752161 Method and apparatus for replacing a failed channel unit of a sectored base station, in a cellular radio system, with an additional channel unit
05/12/1998US5751806 Audio information dissemination using various transmission modes
05/12/1998US5751774 Transmission system for digital audio broadcasting
05/12/1998US5751764 Switcher for flexibly interconnecting communication ports
05/12/1998US5751763 Method and apparatus for power control in a communication system
05/12/1998US5751762 Multichannel receiver using analysis by synthesis
05/12/1998US5751739 Methods of and devices for enhancing communications that use spread spectrum technology
05/12/1998US5751705 Code division multiple access base station transmitter
05/12/1998US5751440 Transmission speed control system for facsimile picture signals in mobile radio communication
05/12/1998US5751335 Viewing restricting method and viewing restricting apparatus
05/12/1998US5751249 Radio transmission system and a radio apparatus for use in such a system
05/12/1998US5751197 Low-power, self-quenching superregenerative detector
05/12/1998US5751114 Apparatus, method and article of manufacture for carrier frequency compensation in a FM radio transmitter
05/12/1998CA2220761A1 A cross-modulation restricting radio receiver
05/07/1998WO1998019507A1 Method for manufacturing a housing part with a screening effect for radio communication equipment
05/07/1998WO1998019497A1 Neck supported microphone
05/07/1998WO1998019477A1 Circuit for eliminating external interference signals in code division multiple access mobile phone
05/07/1998WO1998019476A1 Apparatus for eliminating external interference signals in code division multiple access mobile phone and method therefor
05/07/1998WO1998019465A2 Method of combining several signals, and base station
05/07/1998WO1998019418A1 A class of low cross correlation non-palindromic synchronization sequences for code tracking in synchronous multiple access communication systems
05/07/1998WO1998019414A1 A digital communications system having an automatically selectable transmission rate
05/07/1998WO1998019405A1 Method and apparatus for performing data rate determination
05/07/1998WO1998019353A1 Belt clip holder with auxiliary battery
05/07/1998WO1998019352A1 Battery size adaptor for portable apparatus
05/07/1998WO1998018654A1 Radio receiver
05/07/1998WO1998002984A3 Low power signal processing for spread spectrum receivers
05/07/1998WO1998000983A3 Method and apparatus for using duality and also a system for communicating digital information
05/07/1998DE19713949A1 Radio telephone housing section
05/07/1998DE19645348A1 Sensor signal pick=up arrangement for transmission of secret data
05/07/1998CA2269028A1 Method and apparatus for performing data rate determination
05/07/1998CA2264617A1 A digital communications system having an automatically selectable transmission rate
05/07/1998CA2241851A1 Method for manufacturing a housing part with a screening effect for radio communication equipment
05/06/1998EP0840533A2 A method and system for communicating with remote units in a communication system
05/06/1998EP0840484A2 DC offset correction in TDMA systems
05/06/1998EP0840465A2 User interface for mobile telephone
05/06/1998EP0840464A1 Base station for a mobile radio system
05/06/1998EP0840463A1 Method and apparatus for cancelling interfering co-channel or adjacent channel signals in FM receivers
05/06/1998EP0840392A1 Removable radio transceiver station fitted on a mast
05/06/1998EP0840270A2 Car navigation system with FM multi-broadcast signal receiving function