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