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)
09/1996
09/03/1996US5552749 Method for automatically compensating for accuracy degradation of a reference oscillator
09/03/1996US5552694 Power supply with improved efficiency, transmitter comprising such a power supply
09/03/1996CA2066711C Dual mode automatic gain control
09/03/1996CA2051082C System for transmitting a signal to and for receiving a signal from a passive transponder
08/1996
08/29/1996WO1996026591A1 Chirped spread spectrum positioning system
08/29/1996WO1996026582A1 Variable rate transmitting method, and transmitter and receiver using it
08/29/1996WO1996026579A1 Novel cellular positioning system (cps)
08/29/1996WO1996026578A1 Joint demodulation using spatial maximum likelihood
08/29/1996WO1996026575A1 A radio having an option board interface and an option board for use therewith
08/29/1996WO1996019785A3 Method of and receiver for processing and reproducing a message
08/29/1996DE19506723A1 Television and audio entertainment equipment with remote control
08/29/1996DE19506129A1 Toothbrush with pressure sensor
08/29/1996CA2213518A1 Joint demodulation using spatial maximum likelihood
08/28/1996EP0729246A1 Receiver for multiplex broadcasting
08/28/1996EP0729239A1 Antenna sharing device
08/28/1996EP0729238A2 Transmitter and transceiver
08/28/1996EP0729198A1 Converter
08/28/1996EP0729037A1 System for estimating received signals in the form of mixed signals
08/28/1996EP0728383A1 Satellite communications adapter for cellular handset
08/28/1996EP0728379A1 Microwave transmitter and communications system
08/28/1996EP0728372A1 A radio transmission system and a radio apparatus for use in such a system
08/28/1996EP0728371A1 A radio transmission system and a radio apparatus for use in such a system
08/28/1996CN1130002A Apparatus for performing frequency conversion in a communication system
08/28/1996CN1130001A Communication terminal and portable telephone set
08/28/1996CN1129996A Summing network
08/28/1996CN1129868A Code locking remote receiver and emitter
08/28/1996CN1129864A Jitter suppression circuit
08/27/1996US5551080 Radio frequency connector
08/27/1996US5551079 Radio pager holster assembly
08/27/1996US5551078 Apparatus and method for minimizing the turn on time for a receiver operating in a discontinuous receive mode
08/27/1996US5551077 Portable telephone equipment with condition restoration
08/27/1996US5551075 Semiconductor device including a plurality of interconnected functional integrated circuit blocks operating at high and ultrahigh frequencies, each having a DC distribution line
08/27/1996US5551070 Cartesian multicarrier feedback
08/27/1996US5551069 Radio apparatus having a combined antenna and clip
08/27/1996US5551068 Method and apparatus for communication variable length messages between register modeled radio devices
08/27/1996US5551067 Amplifier control system
08/27/1996US5551065 Wireless solar entertainment system
08/27/1996US5551064 Method and apparatus for communication unit frequency assignment
08/27/1996US5551056 Method for securing the operation of a telecommunications network in a cellular radio system and a base station arrangement
08/27/1996US5550979 Audio video system
08/27/1996US5550950 Voice transfer system with low-error voice signal regeneration
08/27/1996US5550924 Reduction of background noise for speech enhancement
08/27/1996US5550893 Speech compensation in dual-mode telephone
08/27/1996US5550871 Satellite communication receiving apparatus
08/27/1996US5550865 Frequency modulator for data transceiver
08/27/1996US5550862 Method and apparatus for centering equalizer taps
08/27/1996US5550826 Communication protocol for communicating image data
08/27/1996US5550820 Multiple protocol personal communications network system
08/27/1996US5550811 Sync acquisition and tracking circuit for DS/CDMA receiver
08/27/1996US5550810 Direct sequence code division multiple access (DS-CDMA) communication system and a receiver for use in such a system
08/27/1996US5550809 Multiple access coding using bent sequences for mobile radio communications
08/27/1996US5550759 Method for processing signal samples
08/27/1996US5550547 For communicating with a base station
08/27/1996US5550545 Electronic circuit having a linearised and symmetrized response, an oscillator having such a circuit, and a telecontrol transmitter having such an oscillator
08/27/1996US5549486 Battery dock for portable communication devices
08/27/1996CA2070993C Battery housing assembly with integral limited travel guide rails
08/22/1996WO1996025822A2 Multi-channel common-pool distributed data storage and retrieval system
08/22/1996WO1996025809A1 Method and apparatus for reducing quantization noise
08/22/1996WO1996025806A1 Reliable atm microwave link and network
08/22/1996WO1996025804A1 Wireless telephone line extender
08/22/1996WO1996025790A1 Improvements in or relating to communications receivers
08/22/1996WO1996025673A1 Differential ranging for a frequency-hopped remote position determination system
08/22/1996DE19609811A1 Double-conversion TV tuner arrangement for all-band reception off-air or from CATV input
08/22/1996DE19605665A1 Car communication system with numerous aerial units
08/22/1996DE19605654A1 Mobile communicating system with communication unit at road edge
08/22/1996DE19515547C1 Battery-operated mobile telecommunications device
08/22/1996CA2185026A1 Method and apparatus for reducing quantization noise
08/21/1996EP0727932A2 Electromagnetic shielded casing
08/21/1996EP0727909A2 Interface for audio/video subscriber equipment and telecommunications line
08/21/1996EP0727881A2 Spread spectrum communication apparatus
08/21/1996EP0727880A2 Improved remote control system, for transmitting coded signals, provided with a service transmitter able to selflearn codes from other transmitters
08/21/1996EP0727123A1 Method of, and system for, transferring secure data
08/21/1996EP0727115A1 Quadrature multiplexing of two data signals spread by different pn-sequences
08/21/1996EP0727112A1 Dual-mode wireless unit with two spread-spectrum frequency bands
08/21/1996EP0727111A1 Spread spectrum spectral density techniques
08/21/1996EP0727108A1 Power supply modulator circuit for transmitter
08/21/1996EP0635177B1 Method of transmitting and/or storing digitized data-reduced audio signals
08/21/1996CN2233642Y Pocket radio
08/21/1996CN1129500A Method for synchronizing subscriber equipments, a base station and a subscriber equipment
08/21/1996CN1129387A Dual-dandwidth cellular telephone switching apparatus
08/20/1996US5548840 Balanced mixer circuit with improved linearity
08/20/1996US5548838 Interference cancellation system employing a polar vector modulator
08/20/1996US5548832 Automatic display illumination in a receiver
08/20/1996US5548831 FM Receiver having multiple IF stages
08/20/1996US5548830 Dual-band frequency-selective attenuator for automatic gain control
08/20/1996US5548827 Portable radio communication device capable of transmitting the same level of electrical energy when the antenna is stored or extended
08/20/1996US5548826 Power amplifier and a transmitter including the power amplifier
08/20/1996US5548825 Radio transmitter with active band-pass filtering
08/20/1996US5548824 Portable radio communication device housing having a battery storage unit
08/20/1996US5548823 Portable telephone having a receiver section capable of receiving power from multiple external power sources
08/20/1996US5548821 Adaptive system for self-tuning and selecting a carrier frequency in a radio frequency communication system
08/20/1996US5548810 Hands-free two-way radio communication system
08/20/1996US5548725 System for transmitting command and/or data in a single packet and automatically reporting status a predetermined time after receiving a command
08/20/1996US5548619 Radio receiver apparatus of orthogonal detection type comprising local oscillator means with improved automatic frequency control arrangement
08/20/1996US5548613 DS/CDMA receiver using moving-averaged pilot signals for weighting and phase rotation of orthogonal data symbol vectors
08/20/1996US5548595 Signal receiver
08/20/1996US5548583 Wireless telephone user location capability for enhanced 911 application
08/20/1996US5548582 Multicarrier frequency hopping communications system
08/20/1996US5548574 Apparatus for high-speed recording compressed digital audio data with two dimensional blocks and its compressing parameters
08/20/1996US5548246 Power amplifier including an impedance matching circuit and a switch FET
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