| 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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| 06/22/1988 | EP0271805A2 Transmission system |
| 06/22/1988 | EP0271703A2 AM radio transmitter |
| 06/21/1988 | US4752969 Anti-multipath signal processor |
| 06/21/1988 | US4752939 Hidden preamble for frequency hopped synchronization |
| 06/21/1988 | CA1238433A1 Tuner for television receiver |
| 06/21/1988 | CA1238432A1 Digital radio communication system |
| 06/21/1988 | CA1238377A1 Receiving arrangement for hf signals |
| 06/21/1988 | CA1238367A1 Device for limiting the power transmission of radiowave transmitters |
| 06/16/1988 | DE3642363A1 Compression level setting stage for a broadband compander |
| 06/15/1988 | EP0271347A2 Radio transmitter arrangements |
| 06/15/1988 | EP0271149A2 Troposcatter modem receiver |
| 06/15/1988 | EP0271121A1 Directly mixing synchronous receiver |
| 06/15/1988 | EP0271094A2 Method and apparatus for a burst analog two-way communications system |
| 06/14/1988 | US4751735 Stereo demodulation device |
| 06/14/1988 | US4751734 Receiver for FM stereophonic broadcasting system utilizing circuits for reducing effects of multipath |
| 06/14/1988 | CA1238131A1 Control circuit for an adaptive hybrid control in a local area network |
| 06/09/1988 | DE3641397A1 Cover for a telecommunications device provided for installation in a motor vehicle |
| 06/09/1988 | DE3641161A1 Narrow-band crystal-controlled audion receiver |
| 06/08/1988 | EP0270112A2 Radio transmitter-receiver system for increasing or decreasing communication channels |
| 06/08/1988 | EP0269924A2 Compensation amplifier for an automobile antenna |
| 06/07/1988 | US4749991 Turn off protection circuit |
| 06/07/1988 | CA1237782A1 Compatible am broadcast/data transmission system |
| 06/07/1988 | CA1237781A1 Method of automatically controlling signal receiving in mobile radiophone apparatus |
| 06/02/1988 | WO1988004117A1 Process for transmitting digital audio-signals |
| 06/01/1988 | EP0269428A2 Fet tuner |
| 06/01/1988 | EP0269120A2 TDMA communication system having common time slots for system maintenance |
| 06/01/1988 | EP0269055A2 Electronic hybrid circuit |
| 06/01/1988 | CN87208596U Multifunction remote control switch |
| 06/01/1988 | CN87107974A Amplitude-modulated broadcast transmitter |
| 06/01/1988 | CN85100582B Programmable pulse interference imitator |
| 05/31/1988 | US4748688 Electromagnetic wave receiver |
| 05/31/1988 | US4748683 Electronic tuning type FM receiver |
| 05/31/1988 | US4748501 Cable converter for television signals with stereo audio signal |
| 05/31/1988 | US4748423 Hot standby amplifier apparatus |
| 05/31/1988 | CA1237545A1 Data and voice communications system |
| 05/31/1988 | CA1237502A1 Communications system with protection switching and channel identities |
| 05/31/1988 | CA1237480A1 Tracking image frequency trap |
| 05/26/1988 | DE3638922A1 Method for transmitting digitised stereophonic audio signals |
| 05/25/1988 | CN87208530U Duplex frequency modulation telephone |
| 05/24/1988 | US4747161 AM-RF transmitter with compensation for power supply variations |
| 05/24/1988 | US4747140 Low distortion filters for separating frequency or phase modulated signals from composite signals |
| 05/24/1988 | US4746982 Equipment for through-connecting color television signals |
| 05/24/1988 | US4746919 Remote control system with key function display provisions |
| 05/24/1988 | CA1237205A1 Synchronization system for use in direct sequence spread spectrum signal receiver |
| 05/19/1988 | WO1988003736A1 Remote commander |
| 05/19/1988 | WO1988003687A1 Identification system |
| 05/18/1988 | EP0267344A1 Process for the multi-rate encoding of signals, and device for carrying out said process |
| 05/18/1988 | EP0267184A1 Improvements in or relating to a transceiver interference cancellation system. |
| 05/17/1988 | US4745549 Method of and apparatus for optimal scheduling of television programming to maximize customer satisfaction |
| 05/17/1988 | US4745397 Remote control devices |
| 05/17/1988 | US4745298 Signal selection circuit |
| 05/17/1988 | US4744398 Protective cover for receiver-speaker |
| 05/10/1988 | US4744095 Diversity channel data receiver with automatic alignment over a ±3.5-bit range |
| 05/10/1988 | US4744080 Apparatus for receiving digital sound/data information |
| 05/10/1988 | US4743906 Time domain radio transmission system |
| 05/10/1988 | US4743894 Owner identification system for electronic equipment, particularly automotive audio equipment |
| 05/10/1988 | EP0155285A4 Audio channel stacking with speech compression for narrow band transmission with provision for dialed calls. |
| 05/10/1988 | CA1236552A1 Telesignalling method and device for a digital transmission link |
| 05/10/1988 | CA1236551A1 Telesignalling device and method whereby data transmitted by a digital link are replaced by messages |
| 05/10/1988 | CA1236405A1 Spectral emphasis and de-emphasis |
| 05/05/1988 | WO1988003342A1 Ssb communiction system with fm data capability |
| 05/05/1988 | WO1988003340A1 System for suppressing interfering waves |
| 05/04/1988 | EP0265476A1 Device for the remote control of a videorecorder or a videoreceiver. |
| 05/04/1988 | CN85107392B Channel switching system for use in a radio digital transmission system |
| 05/04/1988 | CN85101327B Data collecting apparatus of multi-point connection type |
| 05/03/1988 | US4742570 Multipath noise detecting circuit |
| 05/03/1988 | US4742566 AM receiver |
| 05/03/1988 | US4742565 Radio receiver with field intensity detector |
| 05/03/1988 | US4742540 Circuit for switching between balanced networks |
| 05/03/1988 | US4742514 Method and apparatus for controlling a TDM communication device |
| 05/03/1988 | US4742470 Tool identification system |
| 05/03/1988 | US4741074 Detachable belt clip suitable for automated assembly |
| 05/03/1988 | CA1236180A1 Surface acoustic wave device for data rate reduction |
| 05/03/1988 | CA1236170A1 Data transmission using a transparent tone-in band system |
| 05/03/1988 | CA1236169A1 Method of and device for correcting burst errors on low bit rate coded speech signals transmitted on radio communication channels |
| 04/27/1988 | EP0264785A2 Audio communications module for an office chair |
| 04/27/1988 | CN87201708U Common-base medium frequency amplifier radio |
| 04/27/1988 | CN87200684U Wireless stereo earphone and transmitter |
| 04/27/1988 | CN87105317A Multiple resonator component-mountable filter |
| 04/26/1988 | US4741039 System for maximum efficient transfer of modulated energy |
| 04/26/1988 | US4740794 Connectorless antenna coupler |
| 04/26/1988 | CA1235797A1 Device for the automatic precorrection of non- linearities in a power amplification chain for a television transmitter |
| 04/26/1988 | CA1235753A1 Signal transmission apparatus for a multiple channel system and method for using the same |
| 04/26/1988 | CA1235752A1 Portable radio communication apparatus comprising an antenna member for a broad-band signal |
| 04/20/1988 | CN86106426A New type identifier |
| 04/19/1988 | US4739518 Receiver interference suppression system |
| 04/19/1988 | US4739517 Autodyne receiver |
| 04/19/1988 | US4739516 Frequency tuned antenna assembly |
| 04/19/1988 | US4739232 Power unit for a battery-driven toy |
| 04/19/1988 | US4739186 Frequency-selectable pulsed-sinusoid generation system |
| 04/13/1988 | EP0263687A2 Spread spectrum communications systems and transmitters and receivers therefor |
| 04/13/1988 | EP0263289A2 Method for receiver synchronization in a direct-sequence spread-spectrum system, and apparatus therefor |
| 04/13/1988 | CN87207423U Security stand for communication apparatus |
| 04/12/1988 | US4737991 Audio multiplex television tuner |
| 04/12/1988 | US4737784 Keyless entry system for automotive vehicle devices with weak-battery alarm |
| 04/12/1988 | CA1235190A1 Polar loop transmitter |
| 04/12/1988 | CA1235188A1 Radiotelephone transmission power control |
| 04/12/1988 | CA1235186A1 Bidirectional digital signal communication system |
| 04/07/1988 | WO1988002581A1 Adaptive correction of dc error transients |
| 04/07/1988 | WO1988002559A1 Antenna sharing device |