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)
03/1997
03/06/1997WO1997008843A2 Common receive module for a programmable digital radio
03/06/1997WO1997008842A1 Near direct conversion receiver and method for equalizing amplitude and phase therein
03/06/1997WO1997008841A1 Receiving method and receiver
03/06/1997WO1997008840A2 Common transmit module for a programmable digital radio
03/06/1997WO1997008839A2 Digitally programmable multifunction radio system architecture
03/06/1997WO1997008837A2 Multi-media receiver and system therefor
03/06/1997WO1997008829A1 Digitally programmable radio modules for navigation systems
03/06/1997WO1997008824A1 An apparatus and method for providing a flexible ramp up and ramp down of the sections of a radio in a wireless local area network
03/06/1997WO1997008629A1 Methods and systems for designing and making signal-processor circuits with internal companding, and the resulting circuits
03/06/1997WO1997008567A1 Digitally programmable radio modules for transponder systems
03/06/1997WO1997004538A3 A wireless digital communication device, and a peak-detector
03/06/1997WO1997002550A3 System for communicating between a dynamic group of apparatuses
03/06/1997WO1996039779A3 Control message transmission in telecommunications systems
03/06/1997DE4033574C2 Kraftfahrzeugsteuersystem und -verfahren Vehicle control system and method
03/06/1997DE19616867A1 Telephone with detachable earpiece and mouthpiece
03/06/1997DE19531998A1 DC component compensation method for radio receiver
03/06/1997DE19531996A1 Duplexer for signal transmission and reception
03/06/1997CA2230560A1 Common receive module for a programmable digital radio
03/06/1997CA2230553A1 Common transmit module for a programmable digital radio
03/06/1997CA2230529A1 Digitally programmable multifunction radio system architecture
03/06/1997CA2229921A1 Compressive communication and storage system
03/06/1997CA2229572A1 Multi-media receiver and system therefor
03/05/1997EP0760560A2 Radio unit comprising a mobile transceiver and a radio watch
03/05/1997EP0760541A2 Portable phone composite connector
03/05/1997EP0760193A1 Method and apparatus for rapid handover in a mobile radio system in the presence of abrupt radio signal attenuation
03/05/1997EP0760188A1 Universal connection for cellular telephone interface
03/05/1997EP0760182A1 Method of error protected transmission, method of error protected reception of data and transmission system for transmission of data
03/05/1997EP0709006B1 Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions
03/05/1997EP0493607B1 Clock regenerating circuit
03/05/1997EP0487548B1 Synthesized selective call receiver having variable characteristics
03/05/1997CN2248956Y Hand holding type multifunction device for guiding blind person
03/05/1997CN1144585A Device and method for initially synchronizing spread-spectrum code of cdma transmission system
03/05/1997CN1144428A Receiving apparatus and communication apparatus
03/05/1997CN1144427A High-frequency amplifier, transmitting device and receiving device
03/05/1997CN1144426A Intermittent reception control apparatus
03/05/1997CN1144425A Soil carrier broadcast and communication system
03/05/1997CN1144424A Portable wireless installation
03/05/1997CN1144423A Electronic equipment and method for enabling plural types of batteries to be selectively used
03/05/1997CN1144422A Output-controlled power amplifier, radio communication terminal and radio communication base station
03/05/1997CN1144421A Filter device and dual-band radio system in which filter device is used
03/04/1997US5608805 Dynamic loader
03/04/1997US5608761 Method, device, and radio for compensating for modulator frequency drift while allowing for data transmission
03/04/1997US5608760 Method and circuits for the transmission and reception of numeric signals, in which the peak power of the filtered signal transmitted is reduced, compatible with conventional coding techniques
03/04/1997US5608730 Bi-directional communication system
03/04/1997US5608713 Bit allocation of digital audio signal blocks by non-linear processing
03/04/1997US5608606 Computer plug-in module and interconnection system for wireless applications
03/04/1997US5608409 Adaptive array with automatic loop gain control
03/04/1997US5608406 Device for controlling discharge of a charge capacitor in a transponder
03/04/1997US5608331 Noise measurement test system
03/04/1997US5607792 Battery latch
03/04/1997CA2064129C Car-mounted booster for plug-in connection with mobile telephone set
02/1997
02/27/1997WO1997007618A1 Receiver with filter offset correction
02/27/1997WO1997007596A1 A low voltage temperature and vcc compensated radio frequency mixer
02/27/1997WO1997002652A3 Tunable crystal oscillator with harmonic output
02/27/1997WO1996038837A3 A vocal information system
02/27/1997DE19633954A1 Filter device esp. for two band radio system for mobile phones
02/27/1997DE19607500A1 Filter device esp. for two band radio system
02/27/1997DE19531032A1 Tuner for direct reception of satellite transmission
02/27/1997DE19529818A1 Wireless transmission of analogue or digital signals
02/26/1997EP0759656A1 A microwave mixing circuit
02/26/1997EP0563125A4 Dynamically biased amplifier
02/26/1997CN2248425Y Automatic synchronizing common-frequency diplex transmitter-receiver
02/26/1997CN2248424Y Automatic receiver for frequency modulation broadcasting
02/26/1997CN2248423Y Automatic transmitter for frequency modulation broadcasting
02/26/1997CN1144028A Improvements in or relating to spread spectrum signalling schemes
02/26/1997CN1143890A Portable communication terminal capable of transmitting text data
02/26/1997CN1143874A Transmitter and two-way radio set
02/26/1997CN1143868A Frequency band spreading receiver
02/26/1997CN1143867A Pseudo random noise sequence code generator and CDMA radio communication terminal
02/26/1997CN1143866A Satellite receiving tuner apparatus
02/26/1997CN1143865A RDS-TMC Broadcast receiver
02/26/1997CN1143864A RDS-TMC broadcast receiver
02/26/1997CN1143863A Receiver of direct spread communication system through window filter
02/26/1997CN1143862A Signal processor for FM receiver
02/25/1997US5606743 Radio eyewear
02/25/1997US5606741 Digital automobile telephone having adjustable receiving period
02/25/1997US5606740 Time delay controlled switching for a DC/DC converter in a selective call device for reducing ripple
02/25/1997US5606739 Radio communication apparatus having a battery saving function
02/25/1997US5606738 Frequency conversion circuit with linear feedback
02/25/1997US5606737 Oscillator mixer and a multiplier mixer for outputting a baseband signal based upon an input and output signal
02/25/1997US5606736 Heterodyne radio receiver with plural variable frequency local oscillator signals
02/25/1997US5606735 Slope equalizer using baseband detection
02/25/1997US5606734 Structure generated composite reference signal for interference suppression in an adaptive loop
02/25/1997US5606733 Portable radio receiver
02/25/1997US5606732 Direct connect radio and antenna assembly
02/25/1997US5606731 Zerox-IF receiver with tracking second local oscillator and demodulator phase locked loop oscillator
02/25/1997US5606730 Electronic device having an electronic coupler for coupling between two electronic components and method of assembling same
02/25/1997US5606728 Method and apparatus for reducing power consumption in a selective call radio
02/25/1997US5606642 Audio decompression system employing multi-rate signal analysis
02/25/1997US5606619 Circuit arrangement for deriving a signal indicating noise in a received stereo multiplex signal
02/25/1997US5606618 Subband coded digital transmission system using some composite signals
02/25/1997US5606594 Communication accessory and method of telecommunicating for a PDA
02/25/1997US5606575 FFT-based channelizer and combiner employing residue-adder-implemented phase advance
02/25/1997US5606560 Between a base station and a portable device
02/25/1997US5606332 Dual function antenna structure and a portable radio having same
02/25/1997US5606326 High gain portable radio selective call receiver
02/25/1997US5606323 Diode modulator for radio frequency transponder
02/25/1997US5606313 Low power addressable data communication device and method
02/25/1997US5606285 Power control circuit for use with transmitter
02/25/1997CA2144966C Tracking external power supply