Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › 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
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)
03/1998
03/12/1998WO1998010542A2 Transmitting and receiving method and radio system
03/12/1998WO1998010540A2 Data transmission method, and radio system
03/12/1998WO1998010526A1 Method and apparatus for automatic hybrid balancing using a multitone signal
03/12/1998WO1998010525A1 Circulator usage in time division duplex radios
03/12/1998WO1998010524A1 Compact microwave terrestrial radio utilizing monolithic microwave integrated circuits
03/12/1998WO1998010523A1 A zero-if receiver
03/12/1998WO1998010511A1 Frequency conversion circuit and method for millimeter wave radio
03/12/1998WO1998010487A1 Integrated microwave terrestrial radio with dovetail attachment
03/12/1998WO1998010483A1 Dual-mode antenna for a mobile radio telephone
03/12/1998WO1998010482A1 Microwave transceiver/antenna system with adjustable mounting and alignment mechanism
03/12/1998WO1998004053A3 Base station with antenna, including an amplifier, located at a distance from the station
03/12/1998WO1998004049A3 Dual transmitter arrangement with back-up switching
03/12/1998WO1997049171A3 DSP implementation of a cellular base station receiver
03/12/1998DE19636730A1 Mobile communication station operating device
03/12/1998DE19635279A1 Light (IR) and HF signal transmission method esp. for light and HF signals in vehicle anti-theft device
03/12/1998CA2264701A1 Interface system for providing hands-free operation of a radiotelephone and communication to accessories in a mobile office environment
03/11/1998EP0828388A2 FM teletex broadcast receiver
03/11/1998EP0828361A2 Cellular CDMA data link utilizing multiplexed channels for data rate increase
03/11/1998EP0827661A1 Method for reducing the effect of demodulator transients on signal tracking loops
03/11/1998EP0827653A1 Method and apparatus for power control in a communication system
03/11/1998EP0827651A1 Method and apparatus for estimating a channel parameter in a digital radio frequency communication system
03/11/1998EP0827647A1 Analysis/synthesis filtering system with efficient oddly-stacked single-sideband filter bank using time-domain aliasing cancellation
03/11/1998EP0827646A1 Method and apparatus for conserving power in portable, battery-operated radios
03/11/1998EP0827644A1 Receiving method and a receiver
03/11/1998EP0827643A1 Bidirectional transmission line driver/receiver
03/11/1998EP0827642A1 A cartesian loop transmitter
03/11/1998EP0827641A2 Oscillator
03/11/1998EP0827638A1 Cellular communication system having device coupling distribution of antennas to plurality of transceivers
03/11/1998EP0722637A4 Protection switching apparatus and method
03/11/1998EP0648166B1 Process and circuitry for supplying signals to loudspeakers and other electric consumers arranged in vehicle doors
03/11/1998CN1176036A Information transmission/reception system
03/11/1998CN1176032A Wrist-watch wireless telephone
03/11/1998CN1176027A Radio having option board interface and option board for use therewith
03/11/1998CN1175876A Portable telephone with built-in charger
03/11/1998CN1175875A Mobile telephone with automatic level control means of sound signal
03/11/1998CN1175872A Transmission device with low power consumption and with small circuit scale
03/11/1998CN1175869A Communication system and communication apparatus
03/11/1998CN1175868A Method of mobile communication and apparatus therefor
03/11/1998CN1175836A Digital modulator with compensation
03/11/1998CN1175835A Randomised code acquisition
03/11/1998CN1175827A Small wireless radio
03/11/1998CN1175785A Multipole multiposition microwave switch with common redundancy
03/10/1998US5727119 Method and apparatus for efficient implementation of single-sideband filter banks providing accurate measures of spectral magnitude and phase
03/10/1998US5727028 Method and apparatus for receiving a signal in a digital radio frequency communication system
03/10/1998US5727026 Method and apparatus for peak suppression using complex scaling values
03/10/1998US5727023 Apparatus for and method of speech digitizing
03/10/1998US5727022 Method for improving the signal-to-noise ratio in a transmission system by the formation of area equivalents
03/10/1998US5727020 Wireless radio modem with minimal interdevice RF interference
03/10/1998US5727018 Process for obtaining a signal indicating a synchronization error between a pseudo-random signal sequence from a transmitter and a reference pseudo-random signal sequence from a receiver
03/10/1998US5727004 Method and apparatus for data encoding and communication over noisy media
03/10/1998US5726984 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
03/10/1998US5726982 Artificial window size interrupt reduction system for CDMA receiver
03/10/1998US5726667 Portable communication system
03/10/1998US5726645 Remote controller capable of selecting and setting preset data
03/10/1998US5726630 Detection of multiple articles
03/10/1998US5726383 Telephone radiation shield
03/10/1998US5725578 Temporary implant with transponder and methods for locating and indentifying
03/05/1998WO1998009462A1 Multi-mode mobile station supporting multiple cellular telephone system operation with limited subscriber identity module card
03/05/1998WO1998009441A1 Video signal routing system
03/05/1998WO1998009398A2 Wideband code-division-multiple access system and method
03/05/1998WO1998009395A1 High capacity wireless communication using spatio-temporal coding
03/05/1998WO1998009389A1 Method and apparatus for acquiring low duty-cycle reference signals in a mobile communications environment
03/05/1998WO1998009385A2 Spatio-temporal processing for communication
03/05/1998WO1998009383A1 Frequency division multiplexed transmission of sub-band signals
03/05/1998WO1998009382A1 A system and method for achieving extended radio coverage and additional capacity using extended frequency bands
03/05/1998WO1998009381A1 High capacity wireless communication using spatial subchannels
03/05/1998WO1998009375A1 Multi-band audio compressor with look-ahead clipper
03/05/1998WO1998009374A1 Muting a microphone in radiocommunication systems
03/05/1998WO1998009348A1 Method of tuning summing network of base station
03/05/1998WO1998009181A1 Combination of a gps receiver and a telecommunications apparatus
03/05/1998DE19635104A1 Audio and video apparatus with parameter adjustment mechanism
03/05/1998CA2264644A1 Method and apparatus for sub-band modulation of signals for transmission and/or storage
03/05/1998CA2264633A1 A system and method for achieving extended radio coverage and additional capacity using extended frequency bands
03/05/1998CA2264600A1 Wideband code-division-multiple access system and method
03/05/1998CA2264396A1 Video signal routing system
03/05/1998CA2264170A1 High capacity wireless communication using spatial subchannels
03/04/1998EP0827353A2 Method and system for programming a cellular phone
03/04/1998EP0827315A2 Cellular phone with facsimile function
03/04/1998EP0827287A2 Alarming system for a handheld telephone
03/04/1998EP0827286A2 Ring switch for telecommunication apparatus
03/04/1998EP0827105A2 Identification or sensing device operating with acoustic surface waves
03/04/1998EP0827100A2 Communication system and method
03/04/1998EP0826250A1 An antenna device with two radiating elements having an adjustable phase difference between the radiating elements
03/04/1998EP0826187A2 Communication data format
03/04/1998EP0698268A4 Method and apparatus for mitigating audio degradation in a communication system
03/04/1998EP0640265B1 Transmission device for transmitting a wanted signal modulated on a carrier
03/04/1998EP0595976B1 Am receiver
03/04/1998CN1175339A Method and system of data transmission and reception in a mobile station within a radio telecommunications system
03/04/1998CN1175329A Method and apparatus for increasing receiver immunity to interference
03/04/1998CN1175328A Digitally compensated direct conversion receiver
03/04/1998CN1175176A Multi-frequency band mobile unit communication equipment
03/04/1998CN1175171A Method for device of carrier exalting and compensating in frequency spreading communication system
03/04/1998CN1175141A Code division mutiple address radio commuication receiving method and device
03/04/1998CN1175140A CDMA communication system and method
03/04/1998CN1175136A Comprehensive diversity circuit for radio communication
03/03/1998US5724667 Portable telephone having removable transducer
03/03/1998US5724663 Car phone connected to a vehicle audio unit having visual indication
03/03/1998US5724654 Housing for pager receiver having battery cover locking piece which exposes terminal for external access
03/03/1998US5724653 Radio receiver with DC offset correction circuit
03/03/1998US5724651 Method and apparatus for checking a power supply in a radio receiver
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