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)
11/1988
11/22/1988	CA1245310A1 Interdigital duplexer with notch resonators
11/22/1988	CA1245309A2 Low pass filter circuit
11/22/1988	CA1245307A1 Battery-powered radio communication apparatus capable of prolonging the communicable state thereof
11/17/1988	WO1988009095A1 Wireless telephone equipment
11/17/1988	EP0290830A2 Demodulator for the demodulation of input signals
11/17/1988	EP0290581A1 Process for transmitting digital audio-signals.
11/16/1988	EP0186671A4 Adaptive speech detector system.
11/15/1988	US4785468 Intermittent receiver
11/15/1988	US4785260 Frequency synthesizer for broadcast telephone system having multiple assignable frequency channels
11/15/1988	CA1244936A1 High frequency antenna tuning device
11/15/1988	CA1244887A1 Receiver for bandspread signals
11/09/1988	EP0289660A2 Apparatus for the reception and recording of satellite broadcast signals
11/09/1988	EP0289625A1 Remote commander
11/09/1988	EP0289617A1 An interference cancellation system
11/09/1988	EP0156826B1 Telephone transmission installation
11/09/1988	CN87212834U Luminous tuning indicator for transistor receiver
11/09/1988	CN87103070A Automatic gain control circuit for digital communication
11/08/1988	US4783852 Method and apparatus for acquiring information using a relative phase deviation of the optical signal of a local oscillator of a homodyne receiver
11/08/1988	US4783849 FET tuner
11/08/1988	US4783845 Digital tone squelch detector
11/08/1988	US4783844 Apparatus for transmitting and recording signals
11/08/1988	CA1244548A1 Cable deployment unit
11/08/1988	CA1244520A1 Compatible transmission techniques for fm stereophonic radio and television
11/03/1988	WO1988008649A1 Portable communications receiver with separate information presentation means and improved battery saving function
11/03/1988	WO1988008645A1 Antenna coupler
11/03/1988	DE3713797A1 Radio set consisting of basic unit and a control unit
11/02/1988	EP0289080A1 System for subband coding of a digital audio signal
11/02/1988	EP0289001A2 A tuner with a timepiece
11/02/1988	EP0216803A4 Digital zero-if selectivity section.
11/02/1988	CN87205864U Sound converter for tv set
11/01/1988	US4782532 Automatic IF tangent lock control circuit
11/01/1988	US4782485 Multiplexed digital packet telephone system
11/01/1988	US4782345 Transponder antenna
11/01/1988	US4782310 High frequency filter assembly for electric instrument
10/1988
10/26/1988	EP0287992A2 Readily available serial bus system
10/26/1988	EP0287671A1 Antenna sharing device
10/26/1988	CN88101130A Automatic if tangent lock control circuit
10/25/1988	US4780909 Signal receiver having automatic frequency characteristic adjusting capability
10/25/1988	US4780908 Method and apparatus for signal transmission regulation in differential protection
10/25/1988	US4780885 Frequency management system
10/25/1988	US4780721 Removing undesired directional interference jammer signals
10/20/1988	WO1988008223A1 Arrangement for filtering an incoming fm signal
10/20/1988	WO1988008222A1 Arrangement for filtering an incoming fm-uhf signal
10/20/1988	WO1988008184A1 Measuring instrument with transmitter
10/20/1988	DE3710924A1 Electronic device, intended in particular for installation in a vehicle, with a system for anti-theft protection
10/19/1988	EP0287524A2 Mixer dynamic control
10/19/1988	EP0287415A1 Optic fibre transmission device, particularly for underwater environment
10/19/1988	EP0287305A2 Radio communication apparatus including power supply device
10/19/1988	EP0287154A1 System of orthogonal code generators, radios provided with a code generator and code generators of such a system
10/19/1988	EP0286835A1 Method and circuit for setting subscriber line balance impedances of programmable hybrids
10/18/1988	CA1243359A1 Adaptive expanders for fm stereophonic broadcasting system utilizing companding of difference signal
10/18/1988	CA1243357A1 Channel selection in a multichannel access radio communication system without occurrence of interference
10/13/1988	DE3711504A1 Mobile radio communication installation assembly - has battery pack cooperating with radio-telephone also usable separately in car
10/12/1988	EP0286600A2 A car radio comprising two separable units
10/11/1988	US4777659 Detector for indicating reception disturbances during ultrashort wave broadcast reception
10/11/1988	US4777657 Computer controlled broadband receiver
10/11/1988	US4777655 Control signal receiving system
10/11/1988	CA1243086A1 Insulating material and use thereof in insulators
10/06/1988	WO1988007398A1 Cross-flow filtration device and method of making
10/05/1988	EP0285524A1 Device comprising a radial combiner for electromagnetic waves
10/05/1988	EP0285495A1 Digital signal processing system using a filter bank
10/05/1988	CN87209442U Frequency key control and phase control modulator
10/04/1988	US4776040 Superheterodyne receiver
10/04/1988	US4776039 Receiver for mobile communication systems
10/04/1988	US4776037 Method and apparatus for providing priority channel scan in a radio
10/04/1988	US4776034 Radio communication system operable in cooperation with a VOX system
10/04/1988	US4776018 Removable sound or/and display apparatus
10/04/1988	US4776012 Method of jumping composite PN codes
10/04/1988	US4775976 Method and apparatus for backing up data transmission system
10/04/1988	US4775083 Portable radio carrying case
10/04/1988	CA1242767A1 Automatic frequency and gain control circuit
09/1988
09/28/1988	EP0284493A1 Method and device for encoding and decoding a spread-spectrum transmission
09/28/1988	EP0284101A2 FM/FMX stereophonic receiver
09/28/1988	EP0283735A2 Adaptive data compression method and apparatus
09/28/1988	EP0283570A2 Signal identification system
09/28/1988	CN87213254U Multi-purpose radio
09/28/1988	CN87101494A Direct hybrid synchrodyne receiver
09/27/1988	US4774716 Method for the transmission of digital data
09/27/1988	US4774715 Device for demodulating a spread spectrum signal
09/27/1988	US4774511 Universal remote control unit
09/22/1988	WO1988007267A1 Adaptive thermal protection for a power amplifier by remote sense
09/22/1988	WO1988007246A1 Apparatus for controlling a television receiver or the like
09/21/1988	EP0283401A2 FM communication device with avoidance of interference by substantially same channel fm signal
09/21/1988	EP0283074A1 Microwave mixer
09/21/1988	EP0282607A1 Frequency-converter for television signal
09/21/1988	CN88200494U Uhf双工器 Uhf diplexer
09/21/1988	CN87214415U Multipurpose transceiver
09/20/1988	US4773081 Channel switching system
09/20/1988	US4772862 Filter apparatus
09/20/1988	CA1242269A1 Muting circuit
09/15/1988	DE3706822A1 Method for storing transmissions
09/14/1988	EP0281674A1 Method for preventing the theft of radio receivers
09/14/1988	CN85105744B 无线电接收机 Radio receiver
09/13/1988	US4771464 FM stereophonic broadcasting system utilizing simultaneous companding and modulation/demodulation
09/13/1988	US4771283 Remote control device
09/13/1988	CA1242038A1 Scpc communication system including a voice-activated transmission power controller
09/13/1988	CA1241997A1 Frequency and volume display for a receiver
09/07/1988	WO1988006830A1 Cellular telephone apparatus and cellular communication system
09/07/1988	EP0280997A2 Radio-transceiver, especially a radiotelephone
09/07/1988	EP0280718A1 Hidden preamble for frequency hopped synchronization.

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