| 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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| 08/26/1997 | US5661490 Time-of-flight radio location system |
| 08/26/1997 | US5661485 For receiving an input signal and producing an output signal |
| 08/26/1997 | US5661358 Demodulation apparatus and communication system using the same |
| 08/26/1997 | CA2078533C Optical communications system having transmission line switching system |
| 08/21/1997 | WO1997030525A1 Reduced complexity signal transmission system |
| 08/21/1997 | WO1997030524A1 Reduced complexity signal transmission system |
| 08/21/1997 | WO1997030523A1 A dual-mode radio architecture |
| 08/21/1997 | WO1997030522A1 Multichannel receiver using analysis by synthesis |
| 08/21/1997 | WO1997030521A1 Linear transmitter using predistortion |
| 08/21/1997 | WO1997024817A3 Multi-branch frequency-hopping receiver |
| 08/21/1997 | WO1997024816A3 A method for estimating signal and noise quality, and a receiver |
| 08/21/1997 | WO1997023958A3 A receiver, an arrangement and a method for comparing two signals |
| 08/21/1997 | WO1997023051A3 Radio apparatus |
| 08/21/1997 | WO1997019522A3 Method for controlling a receiver, and a receiver |
| 08/21/1997 | WO1997019432A3 Dynamically compensated linear regulator for pulsed transmitters |
| 08/21/1997 | DE19625859C1 Noise measurement for CDMA reception arrangement |
| 08/21/1997 | DE19605616A1 Active stand-by radio transmitter |
| 08/21/1997 | CA2245879A1 Multichannel receiver using analysis by synthesis |
| 08/21/1997 | CA2245707A1 Linear transmitter using predistortion |
| 08/21/1997 | CA2198042A1 Antenna adapter assembly for portable cellular telephone |
| 08/20/1997 | EP0790729A1 Correction of PLL phase noise in PSK and QAM receivers |
| 08/20/1997 | EP0790712A2 Demodulator for CDMA spread spectrum communication using multiple PN codes |
| 08/20/1997 | EP0790711A1 Spread spectrum radio transmission digital mobile communication device |
| 08/20/1997 | EP0789953A1 Automatic tuning of a radio transceiver |
| 08/20/1997 | CN2260415Y Illuminating means of portable radio set |
| 08/20/1997 | CN2260414Y Cabinet of radio set |
| 08/20/1997 | CN2260413Y Cabinet of portable telephone set |
| 08/20/1997 | CN1157543A Mobile communication information terminal apparatus |
| 08/20/1997 | CN1157416A Method and circuit for reception of signals for positioning by satellite with elimination of multiple path errors |
| 08/19/1997 | US5659894 Dual-channel low current low noise block downconverter |
| 08/19/1997 | US5659890 Information processing system |
| 08/19/1997 | US5659889 Radio with antenna connector having high and low impedance points |
| 08/19/1997 | US5659888 Radio telecommunication apparatus |
| 08/19/1997 | US5659887 Portable radiotelephone and holder for mounting within a vehicle |
| 08/19/1997 | US5659886 Digital mobile transceiver with phase adjusting strip lines connecting to a common antenna |
| 08/19/1997 | US5659885 Radio frequency switch including voltage multiplier |
| 08/19/1997 | US5659884 System with automatic compensation for aging and temperature of a crystal oscillator |
| 08/19/1997 | US5659882 Personal communication system for personal stations operating in a moving object |
| 08/19/1997 | US5659660 Method of transmitting and/or storing digitized, data-reduced audio signals |
| 08/19/1997 | US5659622 Method and apparatus for suppressing noise in a communication system |
| 08/19/1997 | US5659611 Wrist telephone |
| 08/19/1997 | US5659609 Echo canceller and waveform-distortion compensation device |
| 08/19/1997 | US5659594 Mobile telephone system capable of adapting a portable telephone set |
| 08/19/1997 | US5659584 Data receiving system for receiving data signal faded and delayed |
| 08/19/1997 | US5659583 Tone canceller for QAM demodulator |
| 08/19/1997 | US5659582 Receiver, automatic gain controller suitable for the receiver, control signal generator suitable for the automatic gain controller, reception power controller using the automatic gain controller and communication method using the receiver |
| 08/19/1997 | US5659574 Multi-bit correlation of continuous phase modulated signals |
| 08/19/1997 | US5659573 Method and apparatus for coherent reception in a spread-spectrum receiver |
| 08/19/1997 | US5659572 Phased array spread spectrum system and method |
| 08/19/1997 | US5659569 Data burst randomizer |
| 08/19/1997 | US5659546 Wideband frequency signal digitizer and method |
| 08/19/1997 | US5659373 Apparatuses interconnected for the communication of control messages |
| 08/19/1997 | US5659367 Television on/off detector for use in a video cassette recorder |
| 08/19/1997 | US5659350 Operations center for a television program packaging and delivery system |
| 08/19/1997 | US5659253 For detecting an rf input signal |
| 08/14/1997 | WO1997029622A1 Integrated electronic communication device and clip |
| 08/14/1997 | WO1997029599A1 A stabilized frequency communication system |
| 08/14/1997 | WO1997029592A1 Ir transmitter with integral magnetic-stripe credit card reader |
| 08/14/1997 | WO1997029555A1 N-channel transmission, compatible with 2-channel transmission and 1-channel transmission |
| 08/14/1997 | WO1997029554A1 7-channel transmission, compatible with 5-channel transmission and 2-channel transmission |
| 08/14/1997 | WO1997029553A1 Method and apparatus for minimizing modem power while maximizing modem throughput |
| 08/14/1997 | WO1997029552A1 Method and circuit arrangement for processing a received signal |
| 08/14/1997 | WO1997029551A1 Method and circuit arrangement for reducing offset voltage of a signal |
| 08/14/1997 | WO1997029549A1 Wide band audio signal encoder, wide band audio signal decoder, wide band audio signal encoder/decoder and wide band audio signal recording medium |
| 08/14/1997 | WO1997029524A1 Compact radio frequency transmitting and receiving antenna and control device employing same |
| 08/14/1997 | WO1997022234A3 Housing with a shielding function for radio equipment |
| 08/14/1997 | CA2244853A1 Integrated electronic communication device and clip |
| 08/14/1997 | CA2188494A1 Dual mode demodulating device and method |
| 08/13/1997 | EP0789474A2 A hands-free arrangement for mobile communication device |
| 08/13/1997 | EP0789461A2 Redundancy circuit switching of devices with integratable switches |
| 08/13/1997 | EP0789449A2 Distortion-free switching signal mixer |
| 08/13/1997 | EP0789254A2 Detection of multiple articles |
| 08/13/1997 | EP0789253A2 Detection of multiple articles |
| 08/13/1997 | EP0788637A1 Contactless energy and data transmission system |
| 08/13/1997 | EP0788633A1 Contactless energy and data transmission system |
| 08/13/1997 | EP0587733B1 Low computational-complexity digital filter bank |
| 08/13/1997 | CN1157069A Wireless communication system for reliable communication between group of apparatuses |
| 08/13/1997 | CN1157067A Method for transmitting pilot signal, and cellular radio system |
| 08/13/1997 | CN1157066A Method for transmitting pilot channels, and cellular radio system |
| 08/13/1997 | CN1035651C Method and apparatus for timing video recording with character inputting |
| 08/12/1997 | US5657454 Data processing system |
| 08/12/1997 | US5657423 Hardware filter circuit and address circuitry for MPEG encoded data |
| 08/12/1997 | US5657421 Speech signal transmitter wherein coding is maintained during speech pauses despite substantial shut down of the transmitter |
| 08/12/1997 | US5657420 Variable rate vocoder |
| 08/12/1997 | US5657386 Electromagnetic shield for cellular telephone |
| 08/12/1997 | US5657379 Data communication apparatus and method for performing noiseless data communication using a spread spectrum system |
| 08/12/1997 | US5657349 Method and apparatus capable of quickly identifying an unknown system with a final error reduced |
| 08/12/1997 | US5657344 Transmitting/receiving signal processing circuit in digital cordless telephone |
| 08/12/1997 | US5657343 Frequency hopping code division multiple access system and method |
| 08/12/1997 | US5657342 Adaptive data rate packet communication system |
| 08/12/1997 | US5657324 Bidirectional communication system |
| 08/12/1997 | US5657317 Hierarchical communication system using premises, peripheral and vehicular local area networking |
| 08/12/1997 | US5657210 Radio pager having a protection lid |
| 08/09/1997 | CA2194316A1 Mobile terminal having power saving mode that monitors specified numbers of filler messages |
| 08/07/1997 | WO1997028612A1 Code synchronization in multi-user spread-spectrum systems |
| 08/07/1997 | WO1997028610A1 Fft-based channelizer and combiner employing residue-adder-implemented phase advance |
| 08/07/1997 | WO1997028609A1 Loop antenna with reduced electrical field sensitivity |
| 08/07/1997 | WO1997028608A1 Method and arrangement of signal tracking and a rake-receiver utilizing said arrangement |
| 08/07/1997 | DE19703219A1 High frequency tuning circuit with input tuning transformer |
| 08/07/1997 | DE19605019A1 Combined mobile and cordless telephone |