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)
11/1994
11/09/1994	EP0623259A1 An integrated circuit including a surface acoustic wave transformer and a balanced mixer
11/09/1994	CN2182498Y Adjustable antenna for movable telephone
11/09/1994	CN1094880A Frequency two times variable tuner
11/09/1994	CN1094874A Converter
11/09/1994	CN1026545C Correlation processing receiver
11/08/1994	US5363418 Data transmitter and receiver and the data control method thereof
11/08/1994	US5363412 Method and apparatus of adaptive maximum likelihood sequence estimation using filtered correlation synchronization
11/08/1994	US5363411 Receiver for digital radio communication
11/08/1994	US5363407 Transmitter optimization for spectrally congested radio communication systems
11/08/1994	US5363403 Spread spectrum CDMA subtractive interference canceler and method
11/08/1994	US5363402 HF radio apparatus operable in multiple communication modes
11/08/1994	US5363401 Mechanism for extracting hybrid (fh/ds) spread spectrum signals within multi-signal type environment
11/08/1994	US5363122 System for controlling a display provided on a car stereo
11/08/1994	US5363108 Time domain radio transmission system
11/08/1994	US5363097 Direct sequential-bit variable length decoder
11/08/1994	US5363071 Apparatus and method for varying the coupling of a radio frequency signal
11/08/1994	US5363056 Circuit for linearization of amplified electronic signals
11/08/1994	US5363030 Battery having a transistor switch for supplying energy
11/08/1994	CA2051388C Analog/digital voice storage cellular telephone
11/08/1994	CA2045519C Dsp based radio with diminished power requirements
11/03/1994	DE4414350A1 Lernfähiger Sender Self-learning stations
11/03/1994	DE4326328A1 Audio device in a motor vehicle
11/02/1994	EP0622963A2 Apparatus for adaptively tuning to a received periodic signal
11/02/1994	EP0622935A1 Portable telephone apparatus having option circuits in a battery pack
11/02/1994	EP0622920A1 Spread spectrum receiving apparatus
11/02/1994	EP0622910A2 Time diversity transmission system for the reduction of adjacent channel interference in mobile telephone systems
11/02/1994	EP0622909A2 Quantized coherent rake receiver for CDMA signals
11/02/1994	EP0622908A2 Switching circuit for transmit-receive
11/02/1994	EP0622907A2 A radio phone and method of operating a radio phone
11/02/1994	EP0622901A2 Signal processing circuit for switch capable of reducing insertion loss
11/02/1994	EP0622895A1 Communication apparatus utilizing power amplifier
11/02/1994	EP0622893A1 Method and apparatus for normalising components of a complex signal
11/02/1994	EP0622741A2 Device and method for data compression/decompression
11/02/1994	CN2181782Y Shock alarm device for mobile telephone
11/02/1994	CN2181781Y Wireless frequency-modulating remote-control coding transmitter
11/01/1994	US5361408 Direct conversion receiver especially suitable for frequency shift keying (FSK) modulated signals
11/01/1994	US5361407 Double superheterodyne receiver with independent frequency calibration of two local oscillators
11/01/1994	US5361406 Audio level equalization of broadcast and national weather service FM radio signals
11/01/1994	US5361405 Aircraft band radio receiver which does not radiate interfering signals
11/01/1994	US5361403 AM-FM transmitter power amplifier
11/01/1994	US5361401 Channel hopping radio communication system and method
11/01/1994	US5361397 Communication device and system capable of automatic programmable energizing
11/01/1994	US5361395 Gain control circuit
11/01/1994	US5361305 Automated system and method for automotive audio test
11/01/1994	US5361294 Method and apparatus for noise quieting during resynchronization of a digital communication system
11/01/1994	US5361278 Process for transmitting a signal
11/01/1994	US5361276 All digital maximum likelihood based spread spectrum receiver
11/01/1994	US5361074 Mainlobe canceller system
11/01/1994	US5361070 Ultra-wideband radar motion sensor
11/01/1994	US5360683 Battery pack
10/1994
10/27/1994	WO1994024832A1 Method and circuit for retuning of a radio receiver
10/27/1994	WO1994024788A1 Ultra-wideband receiver
10/27/1994	WO1994024775A1 Method and apparatus for transmission of data using radio frequency signals
10/27/1994	WO1994024774A1 A live voice device for cellular phones particularly operable in combination with radio receiver apparatus in motor vehicles
10/27/1994	WO1994024772A1 Method and apparatus for separating channels from a radio frequency transmitter
10/27/1994	WO1994024666A1 Method and apparatus for transforming signals, and recording medium
10/27/1994	WO1994024579A1 Ultra-wideband radar motion sensor
10/27/1994	CA2160918A1 Method and apparatus for transmission of data using radio frequency signals
10/27/1994	CA2160150A1 A live voice device for cellular phones particularly operable in combination with radio receiver apparatus in motor vehicles
10/27/1994	CA2159212A1 Global video communications system
10/27/1994	CA2136443A1 Method and apparatus for separating channels from a radio frequency transmitter
10/27/1994	CA2135917A1 Method and circuit for retuning of a radio receiver
10/26/1994	EP0621707A2 Frequency hopping pattern assignment and control in multiple autonomous collocated radio networks
10/26/1994	EP0620959A1 Frequency synchronized bidirectional radio system
10/26/1994	EP0620958A1 A radio module included in a primary radio station, and a radio structure containing such modules
10/26/1994	EP0559716B1 Process and arrangement for compensating adjacent channel interference in a double sideband amplitude modulation system
10/26/1994	EP0354903B1 Cellular telephone apparatus
10/26/1994	CN2181137Y Sound and time recording instrument for monitoring railway radio communication content
10/26/1994	CN1094206A Data bus luterface apparatus
10/26/1994	CN1094204A Data transmission method and system
10/26/1994	CN1094199A Radio frequency apparatus
10/25/1994	US5359626 Serial interface bus system for transmitting and receiving digital audio information
10/25/1994	US5359625 Spread spectrum communication system particularly-suited for RF network communication
10/25/1994	US5359624 System and method for chip timing synchronization in an adaptive direct sequence CDMA communication system
10/25/1994	US5359607 Adaptive intermodulation control
10/25/1994	US5359576 Voice activated target launching system with automatic sequencing control
10/25/1994	US5359367 Personal computer with broadcast receiver on expansion board controlled by computer microprocessor
10/25/1994	US5359323 Device for remote dialog between a station and one or more portable objects
10/23/1994	CA2094667A1 Two-way communications earset with filter
10/20/1994	DE4412963A1 Resonator mit Breiten-Dehnungsmode Resonator with width expansion mode
10/20/1994	DE4311813A1 Mobile transceiver unit with an antenna
10/20/1994	CA2120982A1 Spur cancellation system
10/19/1994	EP0620656A2 Transceiver for high frequencies
10/19/1994	EP0620655A2 Selective-calling radio receiver
10/19/1994	EP0620653A2 Devices for recording and/or reproducing or transmitting and/or receiving compressed data
10/19/1994	EP0620643A1 Circuit for generating a stop signal for a scanning action
10/19/1994	EP0620546A2 Energy detection procedure for noisy signals
10/19/1994	CN2180022Y Charging protector for moving telephone
10/19/1994	CN1093857A Digital non-lenear pre-emphasis/de-emphasis apparatus
10/19/1994	CN1093843A High efficiency encoding or decoding method and device
10/18/1994	US5357594 Encoding and decoding using specially designed pairs of analysis and synthesis windows
10/18/1994	US5357574 Coherent signal generation in digital radio receiver
10/18/1994	US5357570 Interface connector mounting structure for wireless terminal device
10/18/1994	US5357544 Devices, systems, and methods for composite signal decoding
10/18/1994	US5357541 Transceiver providing selectable frequencies and spreading sequences
10/18/1994	US5357516 Apparatus for use in time division multiplexed communication systems
10/18/1994	US5357360 Optical data network having adjustable delays for switching over to backup unit
10/18/1994	US5357262 Auxiliary antenna connector
10/18/1994	US5357207 Sequential amplifier
10/18/1994	US5357206 Sequential amplifier

1 ... 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 ... 1886