| 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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| 09/15/1993 | EP0560593A2 Monitor apparatus for audio-visual system |
| 09/15/1993 | EP0560503A1 Electrical filter |
| 09/15/1993 | EP0560475A1 Method and apparatus for selecting optimum receiving frequency in a multichannel receiver |
| 09/15/1993 | EP0560413A2 Adaptive bit allocation for audio encoder and decoder |
| 09/15/1993 | EP0559957A2 Radio transceiver for FDM-TDM transmission system |
| 09/15/1993 | EP0559776A1 Method and apparatus for paging in a communication system |
| 09/15/1993 | EP0494918B1 Process for transmitting a signal |
| 09/15/1993 | CN1076296A Noise suppression apparatus |
| 09/14/1993 | WO1993018590A1 Power amplifier combining network |
| 09/14/1993 | US5245614 Vocabulary memory allocation for adaptive data compression of frame-multiplexed traffic |
| 09/14/1993 | US5245330 Microprocessor-controlled apparatus with improved disabling |
| 09/14/1993 | US5244869 Superconducting microwave frequency selective filter system |
| 09/14/1993 | US5244755 Battery compartment door and latch having longitudinal snaps |
| 09/14/1993 | CA1322237C Transceiver arrangement for full-duplex data transmission comprising an echo canceller and provisions for testing the arrangement |
| 09/12/1993 | WO1993018592A1 Hinge assembly |
| 09/10/1993 | EP0569486A4 A communication system capable of adjusting transmit power of a subscriber unit. |
| 09/10/1993 | CA2091089A1 Filter |
| 09/08/1993 | EP0559383A1 A method and apparatus for coding audio signals based on perceptual model |
| 09/08/1993 | EP0559348A2 Rate control loop processor for perceptual encoder/decoder |
| 09/08/1993 | EP0559187A1 Adapter for connecting a portable telephone to a mobile telephone |
| 09/08/1993 | EP0559102A1 Frequency converter |
| 09/08/1993 | EP0559093A1 A digital mobile radio receiver |
| 09/08/1993 | EP0558910A1 Circuit for noise elimination in stereo broadcast signals |
| 09/08/1993 | EP0558902A1 Circuit arrangement for supplying the operating voltage of an antenna amplifier in a car radio |
| 09/08/1993 | CN2141952Y Radio telephone with earphone and microphone |
| 09/07/1993 | US5243659 Motorcycle stereo audio system with vox intercom |
| 09/07/1993 | US5243640 Integrated cellular telephone and vehicular audio system |
| 09/07/1993 | US5243622 Direct-sequence spread-spectrum communication system with asynchronous despreading |
| 09/07/1993 | US5243430 Remote control apparatus and method for omnidirectional signal transmission |
| 09/07/1993 | US5243350 Optical control of TR modules |
| 09/07/1993 | US5243302 Voltage controlled oscillator with correction of tuning curve non-linearities |
| 09/07/1993 | US5242767 Battery housing assembly with integral limited travel guide rails |
| 09/06/1993 | WO1993018601A1 Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a cdma cellular communications system |
| 09/06/1993 | WO1993018596A1 Apparatus and method for reducing power consumption in a mobile communications receiver |
| 09/02/1993 | WO1993017530A1 Radio telephone |
| 09/02/1993 | WO1993017512A1 Radio telephone |
| 09/02/1993 | WO1993017508A1 Filtering method and device for reducing digital audio signal pre-echoes |
| 09/02/1993 | WO1993017507A1 A method for communication in a tdma cellular mobile radio system using frequency hopping |
| 09/02/1993 | WO1993017405A1 A holder for remote control devices |
| 09/02/1993 | DE4306081A1 Automatic warning appts. for breakage in cable - detects if abnormal condition exists in cable and then automatically switches over to spare cable and continues transmission if no further abnormal condition is detected |
| 09/01/1993 | EP0558372A1 Method for hardening transmission, in particular between a control station and a transponder and apparatus for implementing said method |
| 09/01/1993 | EP0558210A1 Radio transceiver apparatus with booster |
| 09/01/1993 | EP0557911A1 Input apparatus |
| 09/01/1993 | EP0557800A1 Receiver distortion correction circuit and method |
| 09/01/1993 | EP0557297A1 Method and apparatus for modulating and dectecting a subcarrier signal for an inductively coupled transponder |
| 09/01/1993 | CN2141625Y Theft-proof case for pager |
| 09/01/1993 | CN1075839A Improved process for the production of mesophase pitch |
| 09/01/1993 | CN1075838A Automatic detection of kind of cable converter unit coupled to a VCR |
| 08/31/1993 | US5241702 D.c. offset compensation in a radio receiver |
| 08/31/1993 | US5241699 Electronic surveillance device detector and method using phase angle differences between two received signals |
| 08/31/1993 | US5241698 Radio receiver operational checking method and system including reactive coupling |
| 08/31/1993 | US5241697 Fm receiver |
| 08/31/1993 | US5241696 Tuner with selective equalization of different program sources |
| 08/31/1993 | US5241695 Molded shield with integral key switch circuitry |
| 08/31/1993 | US5241694 Circuit for forming low power levels in a transmitter of a radio telephone |
| 08/31/1993 | US5241693 Single-block filter for antenna duplexing and antenna-switched diversity |
| 08/31/1993 | US5241692 Interference reduction system for a speech recognition device |
| 08/31/1993 | US5241691 Method of optimizing the transmission of idle beacon messages and a communications system using the method |
| 08/31/1993 | US5241690 Method for regulating power in a digital mobile telephony system |
| 08/31/1993 | US5241689 Digital signal processor audio compression in an RF base station system |
| 08/31/1993 | US5241687 Phase controlling phase of local subcarrier signal to correspond to transmitted pilot signal |
| 08/31/1993 | US5241603 Digital signal encoding apparatus |
| 08/31/1993 | US5241592 Telephonic handset housing assembly for cordless telephone |
| 08/31/1993 | US5241582 Control for supplying power to car audio and phone systems |
| 08/31/1993 | US5241562 Spread spectrum communications system |
| 08/31/1993 | US5241561 Radio receiver |
| 08/31/1993 | US5241535 Transmitter and receiver employing variable rate encoding method for use in network communication system |
| 08/31/1993 | US5241320 Cross-polarization interference canceller |
| 08/31/1993 | US5241282 Wide dynamic range, low power, analog-to-digital receiver |
| 08/28/1993 | WO1993017504A1 Method and apparatus for providing a point-and-address communication system |
| 08/28/1993 | CA2107768A1 Method and apparatus for providing a point-and-address communication system |
| 08/26/1993 | DE4205245A1 Information memory system for traffic messages in motor vehicle - uses analogue memory module of limited capacity to store traffic messages received over radio link and with overwrite capability |
| 08/25/1993 | EP0556992A1 Noise attenuation system |
| 08/25/1993 | EP0556970A1 Memory module reader suitable for a radio telephone |
| 08/25/1993 | EP0556763A2 Wireless installation |
| 08/25/1993 | EP0556277A1 Dual mode electronic identification system |
| 08/24/1993 | US5239700 Multi-choice information system for a motor vehicle |
| 08/24/1993 | US5239699 Am-fm combined stereo receiver |
| 08/24/1993 | US5239697 Radio receiver with two receiving systems |
| 08/24/1993 | US5239696 Linear power amplifier utilizing current feedback |
| 08/24/1993 | US5239695 Radio-frequency power control circuit of mobile radiophone |
| 08/24/1993 | US5239694 Transmitter having battery power detecting means |
| 08/24/1993 | US5239693 Amplifier level-setting apparatus |
| 08/24/1993 | US5239692 Radio frequency transmitter capable of sensing abnormal state for use in a wireless security system |
| 08/24/1993 | US5239691 Resilient housing actuated multi-level switch |
| 08/24/1993 | US5239690 Hand-held transceiver as a modular unit |
| 08/24/1993 | US5239689 Transmitter/receiver apparatus with common oscillator that changes frequency between transmitting and received operations |
| 08/24/1993 | US5239688 Multi-range, multi-use antenna adapter |
| 08/24/1993 | US5239687 Wireless intercom having a transceiver in which a bias current for the condenser microphone and the driving current for the speaker are used to charge a battery during transmission and reception, respectively |
| 08/24/1993 | US5239686 Transceiver with rapid mode switching capability |
| 08/24/1993 | US5239685 Process for fabricating a MMIC hybrid device and a transceiver fabricated thereby |
| 08/24/1993 | US5239683 Cellular telephone system capable of reducing im distortion at portable telephone |
| 08/24/1993 | US5239681 Rds radio system |
| 08/24/1993 | US5239679 Radio telecommunication apparatus capable of storing received messages and erasing the messages at programmable intervals |
| 08/24/1993 | US5239675 Reduced noise interference during handoff |
| 08/24/1993 | US5239666 Mobile detector using RSSI for vehicular repeater prioritization |
| 08/24/1993 | US5239556 Demodulation system for spread spectrum communication |
| 08/24/1993 | US5239555 Frequency hopping signal interceptor |
| 08/24/1993 | US5239521 Wrist telephone |
| 08/24/1993 | US5239306 Dual mode receiver having battery saving capability |