| 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) |
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| 04/25/1995 | US5410326 Programmable remote control device for interacting with a plurality of remotely controlled devices |
| 04/25/1995 | US5410280 Process and device for amplitude modulation of a radiofrequency signal |
| 04/25/1995 | US5410275 Amplifier circuit suitable for use in a radiotelephone |
| 04/25/1995 | US5410141 Hand-held data capture system with interchangable modules |
| 04/25/1995 | CA2033696C Optical communication system having an improved protection line switching mechanism |
| 04/23/1995 | CA2130538A1 Method and apparatus for adaptively providing precoding and preemphasis conditioning to signal data for transfer over a communication channel |
| 04/20/1995 | WO1995010903A1 Correlation detector and communication apparatus |
| 04/20/1995 | WO1995010893A1 Digital communications equipment using differential quaternary frequency shift keying |
| 04/20/1995 | WO1995010892A1 Spread spectrum signal receiver |
| 04/20/1995 | WO1995010891A1 Receiver for spread spectrum communication |
| 04/20/1995 | WO1995010890A1 Transmission system implementing different coding principles |
| 04/20/1995 | WO1995010889A1 Adaptive bandwidth receiver |
| 04/20/1995 | WO1995010888A1 Delay spread sensor and detection switching circuit using it |
| 04/20/1995 | WO1995010886A1 Digital signal processor, digital signal processing method and data recording medium |
| 04/20/1995 | DE4335617A1 Satellite receiving installation |
| 04/20/1995 | DE4335616A1 Satellite receiving installation |
| 04/20/1995 | DE4335424A1 Stereo decoding circuit |
| 04/20/1995 | DE4335023A1 Adaptor for the connection of Cityruf receiver AN6 to Cityruf printer DAN5 |
| 04/20/1995 | DE4334890A1 Alarm detection circuit for a device operated in a motor vehicle |
| 04/20/1995 | CA2174142A1 Digital communications equipment using differential quaternary frequency shift keying |
| 04/19/1995 | EP0649257A2 Transmission system minimizing interference in digital transmission |
| 04/19/1995 | EP0649235A1 Method and apparatus for channel equalization |
| 04/19/1995 | EP0649227A1 Handheld or vehicle mounted radio communication apparatus with steerable directional antenna |
| 04/19/1995 | EP0649226A2 Circuit arrangement for long-wave radio broadcast control receiver |
| 04/19/1995 | EP0649225A1 Method for controlling a bridge circuit and use of the method in the operation of an AM-broadcast transmitter |
| 04/19/1995 | EP0649209A2 Power supply control for a receiver |
| 04/19/1995 | EP0649137A1 Method and apparatus for transforming signals, and recording medium |
| 04/19/1995 | EP0648401A1 Apparatus and methods for automatic control and monitoring of the operation of consumer electronic products |
| 04/19/1995 | EP0648391A1 Synchronous tracking am receiver. |
| 04/19/1995 | EP0648166A1 Process and circuitry for supplying signals to loudspeakers and other electric consumers arranged in vehicle doors |
| 04/19/1995 | EP0634057A4 Antenna assembly for radio circuit and method therefor. |
| 04/19/1995 | CN2195166Y Pocket radio with toggle earphone box |
| 04/19/1995 | CN1101770A Ultrashort-wave transceiver for microwaves or higher frequency electromagnetic waves |
| 04/18/1995 | US5408691 Radio transmitter apparatus which optimizes load impedance to maximize output transmitter efficiency while preserving minimum battery power output |
| 04/18/1995 | US5408687 Direct digital synthesizer with a central frequency controllable filter |
| 04/18/1995 | US5408685 Multipath detector using phase comparison of stereo pilot signal |
| 04/18/1995 | US5408583 Sound outputting devices using digital displacement data for a PWM sound signal |
| 04/18/1995 | US5408580 Audio compression system employing multi-rate signal analysis |
| 04/18/1995 | US5408506 Distributed time synchronization system and method |
| 04/18/1995 | US5408497 Transceiver for transmitting and receiving stair-stepped sinusoidal waveforms |
| 04/18/1995 | US5408496 Spread-spectrum, frequency-hopping radiotelephone system |
| 04/18/1995 | US5408495 Multiple cavity tuning of a transmitter output in a communication system |
| 04/18/1995 | US5408466 Duplex interconnect dispatch trunked radio |
| 04/18/1995 | US5408462 Protection switching apparatus and method |
| 04/18/1995 | US5408202 Phase lock loop having a lock acquisition mode and method of operation therefor |
| 04/18/1995 | US5408201 Frequency synthesizer using three subfrequency synthesizers for generating two different frequencies |
| 04/18/1995 | CA2053890C Time domain radio transmission system |
| 04/16/1995 | CA2118181A1 Power supply control for a receiver |
| 04/13/1995 | WO1995010154A1 Method and apparatus for frequency synthesization in digital cordless telephones |
| 04/13/1995 | WO1995010153A1 Method and apparatus for maximizing the battery life in cordless telephones |
| 04/13/1995 | WO1995010146A1 Protection switching apparatus and method |
| 04/13/1995 | WO1995010145A1 Method of increasing signal quality by adjusting the spreading ratio in a cdma cellular radio system |
| 04/13/1995 | WO1995010141A1 Adaptive radio receiver controller method and apparatus |
| 04/13/1995 | WO1995008241A3 Apparatus for and method of speech digitizing |
| 04/13/1995 | EP0669059A4 Automatic gain control for reducing effects of jamming. |
| 04/12/1995 | EP0648024A1 Audio coder using best fit reference envelope |
| 04/12/1995 | EP0648023A1 Portable communicator with diversity reception |
| 04/12/1995 | EP0648022A2 Audio visual system |
| 04/12/1995 | EP0647949A2 Remote control for a car radio |
| 04/12/1995 | EP0647546A1 Car-mounted sound device |
| 04/12/1995 | EP0647375A1 Method and apparatus for objective speech quality measurements of telecommunication equipment |
| 04/12/1995 | EP0647374A1 Cartesian multicarrier feedback |
| 04/12/1995 | EP0647373A1 Device and method for tuning a combiner filter |
| 04/12/1995 | EP0647372A1 Control system using harmonic filters |
| 04/12/1995 | EP0454694B1 Reactance buffered loop antenna |
| 04/12/1995 | CN2194568Y Holde for communicator |
| 04/12/1995 | CN1101471A Method and apparatus for establishing data communications between power-conserving devices |
| 04/12/1995 | CN1101468A Noiceless audio compressor-expander |
| 04/12/1995 | CN1028193C Wireless synchronic timer |
| 04/11/1995 | US5406635 Noise attenuation system |
| 04/11/1995 | US5406631 Stereo signal demodulator circuit and stereo signal demodulator using the same |
| 04/11/1995 | US5406629 Apparatus and method for digitally processing signals in a radio frequency communication system |
| 04/11/1995 | US5406626 Radio receiver for information dissemenation using subcarrier |
| 04/11/1995 | US5406617 Cordless telephone/entry intercom system |
| 04/11/1995 | US5406615 Multi-band wireless radiotelephone operative in a plurality of air interface of differing wireless communications systems |
| 04/11/1995 | US5406613 Method and apparatus for reducing power consumption in cellular telephone by adaptively determining the reliability of the reception of a received message block |
| 04/11/1995 | US5406588 Method and apparatus for mitigating distortion effects in the determination of signal usability |
| 04/11/1995 | US5406585 Method and apparatus for trellis decoding in a multiple-access system |
| 04/11/1995 | US5406583 Modem with received signals and transmitted signals comprising signal sets |
| 04/11/1995 | US5406564 Communication line backup system |
| 04/11/1995 | US5406255 Duplexed communication system |
| 04/11/1995 | US5406225 Bias control circuit for radio-frequency power amplifier |
| 04/11/1995 | CA2087719C Frequency modulated synthesizer using low frequency offset mixed vco |
| 04/11/1995 | CA2057942C Receiver for processing signals received over diversity channels |
| 04/11/1995 | CA2029080C Battery saving system for interrupting power supplies at intervals variable with traffic pattern |
| 04/11/1995 | CA2026207C Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio |
| 04/11/1995 | CA2008066C Method for the remote-controlled substitution of a defined program part of a tv program by a separately transmitted program part for defined, selected receivers, household terminal for executing the method and method for operating a household terminal |
| 04/06/1995 | WO1995009511A2 Radiotelephone system for groups of remote subscribers |
| 04/06/1995 | WO1995009493A1 A method and apparatus for receiving and decoding signals using partial de-correlation |
| 04/06/1995 | WO1995009488A1 Measurement of gain error in a base station receiver, and improvement in field strength measurement |
| 04/06/1995 | WO1995007576A3 Digital sound broadcasting using a dedicated control channel |
| 04/06/1995 | WO1995007015A3 Method and apparatus of combining signals in a digital pipelined signal adder |
| 04/06/1995 | DE4405659C1 Method for the cascaded coding and decoding of audio data |
| 04/06/1995 | DE4333515A1 Flexible selection circuit |
| 04/06/1995 | DE4333396A1 Wireless (wire-free) multi-channel information transmission system |
| 04/05/1995 | EP0647041A1 Radio data system receiver comprising a power supply circuit controlled by programme type data |
| 04/05/1995 | EP0647037A1 Portable radio apparatus with a folding structure |
| 04/05/1995 | EP0647016A1 Direct conversion receivers |
| 04/05/1995 | EP0647015A2 Modulators |
| 04/05/1995 | EP0646891A2 Method and apparatus for reducing residual RF power in a transmitter/receiver antenna |