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)
10/1982
10/05/1982US4353001 Noise signal suppressor having improved output signals
09/1982
09/29/1982EP0061351A2 Receiver in a frequency hopping communication system
09/28/1982US4352210 Linear mixer with reduced spurious responses
09/28/1982US4352199 Method and device for detecting and interpreting a distress signal
09/28/1982US4352111 Multi-band antenna coupling network
09/28/1982US4352107 Matching cable for automobile antennas for receiving FM broadcasts
09/28/1982US4352094 Device for acquiring and averaging samples of a noisy periodic signal
09/28/1982CA1132663A1 Radio for receiving and reproducing information broadcast on the intermediate frequency
09/22/1982EP0060384A1 Circuit for coupling an aerial to the R.F. input circuit of a car radio
09/21/1982US4351060 Automatic, digitally synthesized matching line terminating impedance
09/21/1982CA1132273A1 Channel programing apparatus for a signal receiver
09/21/1982CA1132248A1 Power supply control apparatus for a television receiver
09/14/1982US4349919 Transmitter/receivers capable of contemporaneous transmission/reception
09/14/1982US4349916 Adaptive interference tracker for suppression of narrow band interference
09/14/1982US4349795 RF Trap for a cable television trunk amplifier station
09/14/1982CA1131821A1 Longitudinal balance arrangement for two-to-four telecommunication line circuits
09/14/1982CA1131820A1 Driving point impedance
09/14/1982CA1131710A1 Automatic frequency control system for single sideband signal receiver
09/08/1982EP0059381A2 Modular unit for audio or hi-fi equipment comprising at least two modules
09/08/1982EP0059294A1 Transmission methods and apparatus for implementing the method
09/07/1982US4348770 Manual channel selection apparatus
09/07/1982US4348757 Transceivers
09/07/1982US4348645 Buffer amplifier circuit used in wideband tuner
09/07/1982CA1131355A1 Signal processing circuit
09/07/1982CA1131344A1 Facsimile compression system
09/07/1982CA1131317A1 Method and device for detecting and interpreting a distress signal
09/07/1982CA1131315A1 Infrared radiation communication system
09/01/1982EP0011646B1 Electronically tuned radio receiver
08/1982
08/31/1982US4347627 Adaptive array processor and processing method for communication system
08/31/1982US4347605 Multiplexed telecommunication systems
08/31/1982US4347510 Apparatus for automatic selective switching and transmission of input signals
08/31/1982US4347404 Control device for an automotive vehicle FM radio
08/31/1982CA1130937A1 Electronic tuning circuit having image trapping element
08/31/1982CA1130927A1 Memory system adapted to receive a radio frequency signal
08/31/1982CA1130866A1 Digital signal reception system
08/24/1982US4346475 Data transmission system operating on the spread spectrum principle
08/24/1982US4346267 Hybrid circuit
08/24/1982US4346266 Hybrid circuit
08/24/1982US4345462 Vessel location system
08/24/1982CA1130430A1 Electrical apparatus comprising a reversible front plate
08/24/1982CA1130400A1 Filter for microwaves
08/18/1982EP0057892A2 Multi-function control part
08/17/1982US4344688 Interchangeable lens assembly
08/17/1982CA1130027A1 Adaptive electronic hybrid circuit
08/17/1982CA1129967A1 Level indicating circuit
08/10/1982US4344185 Low noise high stability FM transmitter
08/10/1982US4344184 Wireless microphone
08/10/1982US4344169 Method of connecting two short-wave transmitters in parallel
08/10/1982US4344089 Ghost cancelling system
08/10/1982CA1129568A1 Tuner with presettable channel selection
08/05/1982WO1982002633A1 High frequency communications
08/03/1982CA1129010A1 Citizens band transmitter with overall envelope feedback from antenna coupling filter
08/03/1982CA1129009A1 Stereo composite processor for stereo radio receiver
07/1982
07/28/1982EP0056731A2 Radio communication receiver having a low power consumption oscillator circuit
07/28/1982EP0056464A2 Pulsive noise removing apparatus
07/27/1982US4342120 Squelch system for use in a multiple carrier AM communications systems receiver
07/27/1982US4341769 2,6-Diaminonebularines, their production and use
07/20/1982US4340974 Local oscillator frequency drift compensation circuit
07/20/1982US4340973 Selective calling receiver including a voltage converter with low power consumption
07/20/1982US4340972 Transmitter/receiver teaching apparatus
07/20/1982US4340940 Hardware reduction by truncation of selected number of most significant bits for digital video system using subsampling and adaptive reconstruction
07/20/1982US4340908 Control level displaying apparatus
07/20/1982US4340782 Circuit for demodulating amplitude and angle modulated broadcast signals
07/20/1982CA1128161A1 Intrusion detector for press brake
07/13/1982US4339826 Radio receiver having phase locked loop frequency synthesizer
07/13/1982CA1127718A1 Radio receiver blanker inhibit circuit
07/13/1982CA1127717A1 Reduction of adjacent channel interference
07/13/1982CA1127715A1 Radioelectric method and apparatus for collecting and processing data from a multiplicity of stations
07/08/1982WO1982002306A1 Radiotelephone with hands-free operation
07/08/1982WO1982002302A1 Variable capacitance circuit
07/08/1982WO1982002285A1 Spread spectrum signal estimator
07/07/1982EP0055287A1 Transform modulation system
07/07/1982EP0055279A1 Arrangement for adjusting an adaptive digital balance filter included in a subscriber unit.
07/06/1982US4338632 Remote control system for television monitors
07/06/1982US4338589 Autocalibration of compressed A/D converter
07/06/1982CA1127310A1 Quantizing process with dynamic allocation of the available bit resources and device for implementing said process
06/1982
06/29/1982US4337480 Dynamic audio-video interconnection system
06/29/1982CA1126825A1 Automatic gain control device for a single-sideband receiver
06/22/1982US4336616 Discriminator aided phase lock acquisition for suppressed carrier signals
06/22/1982US4336513 Hum reduction circuit
06/22/1982CA1126340A1 Measuring radio-frequency impedance
06/16/1982EP0053734A1 Device for the registration and playback of traffic news
06/16/1982EP0053630A1 Wideband transceiver with emi suppression
06/15/1982US4335470 Audio de-emphasis circuit
06/15/1982US4335468 Simultaneous transmission signal detection system
06/15/1982US4335463 Simultaneous integral multi-access transmission system on transmission lines by optical fibres
06/15/1982US4335347 Power combining or dividing arrangements
06/10/1982WO1982001970A1 In-band signaling system for fm transmission systems
06/10/1982WO1982001948A1 Signal filter method and apparatus
06/09/1982EP0053545A1 Information transmission system, using direct light-modulation, optical-link and a bandwidth extended towards low frequencies and direct current
06/09/1982EP0053474A1 Pulse code modulated signal processing apparatus
06/09/1982EP0053303A2 Volume compression and/or expansion circuit
06/09/1982EP0053180A1 Remote control entertainment system
06/08/1982US4334319 Battery-powered receivers
06/08/1982US4334315 Wireless transmitting and receiving systems including ear microphones
06/08/1982US4334242 Remote control television with external data bus connection
06/08/1982US4334125 Stereo demodulator circuit
06/08/1982CA1125444A1 Tuning apparatus
06/08/1982CA1125394A1 Process for recovering a modulation signal
06/02/1982EP0053064A1 Digital transmission system with adaptive coding of sampled and orthogonally transformed analogue information
1 ... 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 ... 1886