Patents for H04Q 9 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom (14,096) |
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03/26/1991 | US5003396 Black and white monitoring system for use in a remote controller |
03/26/1991 | CA1282118C2 Automatic/remote rf instrument monitoring system |
03/20/1991 | EP0418083A2 Control instrument condition sensing |
03/20/1991 | EP0417807A2 Remote control unit |
03/19/1991 | US5001774 Stereo headphone remote control circuit |
03/19/1991 | CA1281799C Remote maintenance system for digital communication network |
03/12/1991 | US4999622 Remote commander having a ROM read-out pre-programmed codes therefrom |
03/07/1991 | WO1991003126A2 Process and device for sender-side controlled operation of a receiver-side appliance |
03/07/1991 | WO1991003038A1 Remote control system |
03/07/1991 | WO1991002668A1 Data transmission process by serial data bus in distributed systems |
03/07/1991 | DE4003754A1 Rotatable and pivotable electric lamp for room lighting - is operated by remote control using modulated IR radiation directed at protected photoreceiver on lamp support |
03/07/1991 | DE3920948A1 Electronic pulse group generator - uses last but one pulse to trigger internally generated last pulse whose interval is at least equal to clock pulses |
03/06/1991 | EP0415760A2 Remote sensor communications system and method |
03/06/1991 | EP0415621A2 Communication system for single point emergency lighting |
03/06/1991 | EP0415169A1 Method for data transmission |
03/05/1991 | US4998294 Opto-electrical power transmission and control system |
03/05/1991 | CA1281095C Multipurpose digital integrated circuit for communication and control network |
03/02/1991 | CA2024503A1 Remote sensor communications system and method |
03/01/1991 | CA2020090A1 Communication system for single point emergency lighting |
02/28/1991 | DE3928188A1 Verfahren und einrichtung zum senderseitig gesteuerten betaetigen eines empfaengerseitigen geraetes Method and device for the transmitter end controlled actuation of a device empfaengerseitigen |
02/28/1991 | DE3927968A1 Verfahren zur datenuebertragung ueber einen seriellen datenbus in verteilten systemen Method for data transmission over a serial data bus in distributed systems |
02/28/1991 | DE3927838A1 Fernbedienungssystem Remote control system |
02/27/1991 | EP0414524A2 Multiple zone audio system |
02/26/1991 | US4996518 Fire alarm system |
02/26/1991 | US4996514 Car theft proofing system |
02/25/1991 | CA2023455A1 Multiple zone audio system |
02/21/1991 | WO1991001903A1 Regulating or control system |
02/13/1991 | EP0412424A2 High speed digital telemetry system for implantable device |
02/13/1991 | EP0412335A2 Method and apparatus for determining audience viewing habits |
02/12/1991 | US4992671 Circuit arrangement for at least one electric load of a motor vehicle |
02/07/1991 | DE3925830A1 Regel- oder steuersystem Regulating or control system |
02/05/1991 | US4990836 Motorized automobile antenna control device |
02/05/1991 | CA1279916C Gas cylinder monitor and control system |
01/30/1991 | EP0410194A1 Remote control transmitter |
01/29/1991 | WO1991002300A1 Universal analog input |
01/29/1991 | US4989081 Home-bus-information system |
01/29/1991 | US4988989 Master-slave communication system for stations having timer means |
01/29/1991 | CA2040422A1 Universal analog input |
01/24/1991 | DE4022178A1 Command transmitter with number of function modes - has number of adjusters for function mode selection and data adjustment |
01/23/1991 | EP0408580A1 Device for in-process monitoring of transmission systems. |
01/22/1991 | CA1279374C Seismic signal transmission system using radio relays |
01/22/1991 | CA1279372C Non-electronic gain control |
01/15/1991 | US4985694 Car theft proofing system |
01/15/1991 | US4985693 Car theft proofing system |
01/15/1991 | CA1279117C Local control system for domestic appliances and alarm devices |
01/09/1991 | EP0406486A1 Control system for controlling consumer apparatus, in particular audio and/or video apparatus and consumer apparatus for use in such control system |
01/09/1991 | EP0406346A1 Power management and automation system |
01/08/1991 | US4983964 System for data transmission |
01/08/1991 | US4983948 Car theft proofing system |
01/01/1991 | US4982186 Pulse train relay |
12/27/1990 | EP0403709A2 Parameter value communication system |
12/26/1990 | CN1048132A Remote control receiving for home electric applicance and receiving method thereof |
12/26/1990 | CN1048085A 动力传递 Power transmission |
12/25/1990 | US4980681 Direct view remote control method for workings machine and transmitter and receiver assembly for carrying out such method |
12/24/1990 | CA2019698A1 Communications system with contention protocol |
12/19/1990 | EP0402813A2 Power transmission |
12/19/1990 | EP0402654A2 Connection device for the connection of electrical appliances |
12/19/1990 | EP0402620A2 Wireless transmitting-receiving apparatus for a bicycle |
12/18/1990 | CA1278062C2 Multipurpose digital integrated circuit for communication and control network |
12/18/1990 | CA1278061C2 Multipurpose digital integrated circuit for communication and control network |
12/11/1990 | US4977404 Remote control transmitter for emitting control commands |
12/11/1990 | US4977353 Communication system for single point emergency lighting |
12/06/1990 | DE4017533A1 Control-supervisory signal transmission system - employs shared data line for bidirectional traffic between controller and controlled devices or device state monitors |
12/05/1990 | EP0400264A2 Security lock for electrical equipment |
12/04/1990 | US4975865 Method and apparatus for real-time control |
12/04/1990 | US4975592 Current supply arrangement having a stand-by mode featuring low power consumption |
12/04/1990 | CA1277381C2 Multipurpose digital integrated circuit for communication and control network |
12/01/1990 | WO1990015391A1 Method and apparatus for real-time control |
12/01/1990 | CA2057039A1 Method and apparatus for real-time control |
11/29/1990 | WO1990014484A1 Transmission and receiving system |
11/28/1990 | EP0399725A1 Automatic transducer excitation source testing system |
11/28/1990 | EP0399200A2 Functionally modifiable cable television converter system |
11/27/1990 | US4974199 Digital IC-microcomputer interface |
11/27/1990 | US4973943 Signal control system using two synchronous ring counter circuits |
11/27/1990 | CA1277033C Automatic metering apparatus |
11/22/1990 | EP0398550A2 Power status detecting apparatus |
11/22/1990 | DE4009658A1 Fernsteuerbares leistungsstellsystem A remotely controllable power adjustment system |
11/22/1990 | DE3915188C1 Wireless interrogation and current supply method for switches - using capacitative and inductive elements corresp. to sec. winding of transformer |
11/22/1990 | CA2005359A1 Character/graphic information network system |
11/20/1990 | US4972503 Method and apparatus for determining audience viewing habits by jamming a control signal and identifying the viewers command |
11/20/1990 | US4972184 Polling system for use in an audio system |
11/20/1990 | CA1276682C Secure communication system for multiple remote units |
11/15/1990 | WO1990013984A1 Electronic meter reader system |
11/15/1990 | DE4012273A1 Fernsteuereinheit Remote control unit |
11/14/1990 | EP0396535A1 System and method for transferring status information between a plurality of status sites |
11/08/1990 | DE4012347A1 Einrichtung zum adressieren einer speichervorrichtung fuer eine fernsteuereinheit Means for addressing a memory device for a remote control unit |
11/07/1990 | EP0396355A2 Information handling and control systems |
11/06/1990 | US4969082 Control method for a collective wiring system |
10/31/1990 | EP0394895A1 Communication adapter for remote control terminal |
10/31/1990 | EP0394427A1 Multiple channel data acquisition system |
10/24/1990 | CN1046405A Remote controlling device |
10/23/1990 | US4965567 Method of, and apparatus for, transmitting data in a manufacturing machine comprising a plurality of production stations |
10/23/1990 | US4965557 Interactive control of entertainment electronics apparatus |
10/23/1990 | US4964693 Radio having optical controls and method of optically controlling same |
10/17/1990 | EP0392872A2 A wireless remote controller |
10/17/1990 | EP0392824A1 Metal substrate for thick film circuits for automotive electrical systems |
10/16/1990 | US4964058 Power management and automation system |
10/16/1990 | CA1275314C Receiver |
10/10/1990 | EP0391657A2 Tuner control apparatus having tune-by-label capability |
10/10/1990 | EP0391656A2 Tuner control apparatus having tune-by-label capability and using alphabetical label storage |