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)
09/1998
09/16/1998CN1193240A Detection-digital-signal processor in digital videl-disk reproducing device
09/16/1998CN1193225A Searching device used in CDMA receiver and method thereof
09/16/1998CN1193224A Method for controlling radio signal power according to variation of frequency and temp. in paging signal-emission machine
09/16/1998CN1039865C High-frequency receiver
09/15/1998US5809474 Audio encoder adopting high-speed analysis filtering algorithm and audio decoder adopting high-speed synthesis filtering algorithm
09/15/1998US5809433 Multi-component antenna and method therefor
09/15/1998US5809432 Portable radio terminal having a removable radio system unit
09/15/1998US5809417 Cordless telephone arranged for operating with multiple portable units in a frequency hopping system
09/15/1998US5809408 Variable gain circuit and radio apparatus using the same
09/15/1998US5809407 Receiver, an arrangement and a method for comparing two signals
09/15/1998US5809406 Receiving apparatus and method for switching between active and standby receivers
09/15/1998US5809405 Transmitter/receiver appartus with reduced insertion loss comprising a single switching means and a plurality of antenna duplexers each duplexer having a different frequency band
09/15/1998US5809403 Coaxial cable assembly for a portable phone
09/15/1998US5809402 ACARS/VHF transceiver interface unit (AVIU)
09/15/1998US5809400 Radio receiver
09/15/1998US5809399 Method and circuit for filtering disturbances in a radio receiver
09/15/1998US5809221 Apparatus and method for detecting and bypassing faulty switches in a digital matrix switch
09/15/1998US5809135 Press locking connector for antenna of a mobile-phone
09/15/1998US5809115 Terminal to be coupled to a telecommunications network using radio communication
09/15/1998US5809093 Apparatus and method of frame aligning information in a wireless telecommunications system
09/15/1998US5809089 Receiving unit, soft information data processor and decoding method thereof used for a code division multiple access system
09/15/1998US5809067 Wireless packet data communications modem and method of use therein
09/15/1998US5809064 Pseudorandom noise ranging receiver which compensates for multipath distortion by dynamically adjusting the time delay spacing between early and late correlators
09/15/1998US5809062 Ambiguity resolution system in direct sequence spread spectrum modulation systems
09/15/1998US5809061 CDMA communication system with pilot tone control
09/15/1998US5809060 Apparatus for communicating data between at least two data devices
09/15/1998US5809059 Method and apparatus for spread spectrum channel assignment
09/15/1998US5809058 Code division multiple access signal receiving apparatus for base station
09/15/1998US5809028 Protocol converter for a wireless telecommunications system
09/15/1998US5808913 Signal processing apparatus and method for reducing the effects of interference and noise in wireless communications utilizing antenna array
09/15/1998US5808587 Wireless access control system using a proximity member and antenna equipment therefor
09/15/1998US5808586 Side-by-side coil-fed antenna for a portable radio
09/15/1998US5808582 Global positioning system receiver with improved multipath signal rejection
09/15/1998US5808569 Transmission system implementing different coding principles
09/15/1998US5808531 Voltage-controlled variable tuning circuit
09/15/1998US5806730 Holder for container and other articles
09/15/1998CA2118720C Method for channel estimation using individual adaptation
09/15/1998CA2114570C Frequency hopping pattern assignment and control in multiple autonomous collocated radio networks
09/15/1998CA2102565C Radio communication apparatus capable of isolating a receiver from a transmitter during a reception operation
09/15/1998CA2071869C Carrier recovery method and apparatus having an adjustable response time determined by carrier signal parameters
09/15/1998CA2067822C In-wire selective cancellation system
09/13/1998CA2230087A1 Device for suppressing stray direct component hops for zero intermediate frequency type radio receivers, and the corresponding suppression process
09/11/1998WO1998039942A1 Microphone attachment for electrically connecting the microphone and audio circuit of a flip-type radio phone with a mechanical contact device
09/11/1998WO1998039882A1 Improvements in ultrafast time hopping cdma-rf
09/11/1998WO1998039862A1 Radio apparatus with adjustable reception quality
09/11/1998WO1998039858A2 A multi-user communication system architecture with distributed transmitters
09/11/1998WO1998039856A1 Method and system for improving communication
09/11/1998WO1998039852A1 Portable multi-purpose audio complex for motor vehicles
09/11/1998WO1998039851A1 Cellular communications systems
09/11/1998WO1998039815A1 Portable receiver
09/11/1998WO1998039666A1 Antenna for transmitting and/or receiving signals with rectilinear polarisation
09/11/1998WO1998032253A3 Method of, and apparatus for, processing low power pseudo-random code sequence signals
09/11/1998WO1998032235A3 Receiver apparatus for two frequency bands
09/11/1998WO1998031108A3 A radio front-end circuit
09/11/1998WO1998029969A3 Communication terminal having proximity detector method and apparatus for safe wireless communication
09/11/1998WO1998029968A3 Portable satellite phone for communication with direct link to satellite
09/11/1998CA2262955A1 Improvements in ultrafast time hopping cdma-rf
09/11/1998CA2229182A1 Transmission/reception unit with bidirectional equalization
09/10/1998DE19709188A1 Portable remote control device e.g for motor vehicle anti-theft protection equipment
09/10/1998DE19708490A1 Funkgerät Radio set
09/09/1998EP0863637A2 Communication equipment with an optical bus and method of operating the same
09/09/1998EP0863632A2 Apparatus for receiving audio broadcast signals
09/09/1998EP0863631A2 Audio data transmission and recording
09/09/1998EP0863623A2 Device and method for controlling frequency characteristic of a filter
09/09/1998EP0863619A1 Method for power control in wireless networks for communicating multiple information classes
09/09/1998EP0863618A2 Method and apparatus for transmission power control by measuring the signal to interference ratio in a CMDA communication system
09/09/1998EP0863617A1 Transmission system comprising at least one satellite station with circuits powered from a power source
09/09/1998EP0863505A2 Method for superimposing and detecting additional information signal, method for detecting additional information signal, device for detecting additional information signal, and device for recording information signal
09/09/1998EP0863407A1 Antenna for the transmission and/or reception of signals having linear polarisation
09/09/1998EP0863052A1 Removable control element for a car radio
09/09/1998EP0862817A2 Method for controlling a receiver, and a receiver
09/09/1998EP0862816A1 Method and device for removing signal residues in quadrature signal modulator-demodulators
09/09/1998EP0862814A1 Method of selecting a transmit frequency
09/09/1998EP0862812A2 Dynamically compensated linear regulator for pulsed transmitters
09/09/1998EP0862798A1 Integrated microwave terrestrial radio with dovetail attachment
09/09/1998EP0862778A1 Audio noise reduction system implemented through digital signal processing
09/09/1998EP0862777A1 Dsp decoder for decoding analog sr encoded audio signals
09/09/1998EP0809896A4 Reliable atm microwave link and network
09/09/1998EP0795212A4 Burst-error resistant atm microwave link and network
09/09/1998EP0702866B1 Signaling packet for communication system with modulated reference according to a time-base law
09/09/1998EP0587792B1 Battery saver for a communication device
09/09/1998CN1192842A Battery powdered device
09/09/1998CN1192831A Apparatus and method of establishing and maintaining communication paths in a wireless telecommunications system
09/09/1998CN1192830A Adaptive despreader
09/09/1998CN1192614A Audio data transmission apparatus and method, audio data recording apparatus, and audio data recording medium
09/09/1998CN1192613A Method and apparatus for receiving communication signals
09/08/1998US5806007 Activity control for a mobile station in a wireless communication system
09/08/1998US5806006 Method of controlling power output by a primary power source so as to conserve power in an electronic communication device
09/08/1998US5805992 Method for validating a communication link
09/08/1998US5805990 Radio data communications apparatus with battery saving function
09/08/1998US5805989 Radio communication apparatus
09/08/1998US5805988 System and method for switching an RF signal between mixers
09/08/1998US5805986 High-frequency step attenuator suitable for transmission circuit
09/08/1998US5805985 Universal adapter kit for mini microphone
09/08/1998US5805980 Communication receiver for controlling a receive operation in response to a control value
09/08/1998US5805979 Control apparatus and control method for attenuating radio signal
09/08/1998US5805806 Method and apparatus for providing interactive networking between televisions and personal computers
09/08/1998US5805770 Signal encoding apparatus, signal decoding apparatus, recording medium, and signal encoding method
09/08/1998US5805672 Accessory voice operated unit for a cellular telephone
09/08/1998US5805650 Circuit for data transmission in asynchronous mode with a free reception frequency locked on the transmission frequency