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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05/16/1989 | US4831558 Digitally based system for monitoring physical phenomena |
05/16/1989 | US4831375 Two-wire communication apparatus |
05/16/1989 | US4829779 Interface adapter for interfacing a remote controller with commercial refrigeration and environmental control systems |
05/10/1989 | EP0072857B1 Data communication system |
05/10/1989 | CN1032874A Automated matrix for communication line connection |
05/09/1989 | US4829540 Secure communication system for multiple remote units |
05/05/1989 | WO1989004033A1 System for transmitting and receiving remote-control signals |
05/05/1989 | WO1989004032A1 Smoke and fire detection system communication |
05/03/1989 | EP0314177A2 Transmitter for remote control system and method of remotely controlling a plurality of operations on a plurality of electronic devices |
05/02/1989 | US4827256 Sound transmission method for data way system |
05/02/1989 | US4827244 Test initiation apparatus with continuous or pulse input |
04/27/1989 | DE3834199A1 Schaltung zur interaktiven regelung von mehreren regelelementen Circuit for interactive control of several regulatory elements |
04/25/1989 | US4825209 Remote control apparatus |
04/25/1989 | US4825075 Non-electronic gain control |
04/20/1989 | WO1989003327A1 Vehicle multiplex system |
04/13/1989 | DE3833004A1 Parallel/serial converter for parallel sensor signals |
04/12/1989 | EP0311271A2 Automated matrix for comunication line connections |
04/12/1989 | EP0311112A2 Remote control transmitting/receiving system |
04/12/1989 | EP0310877A1 Method and circuit arrangement for collecting self-monitoring information in information transmission systems |
04/11/1989 | CA1252545A1 Two way remote controller |
04/11/1989 | CA1252538A1 Data communication system |
04/11/1989 | CA1252537A1 Data transmission system |
04/11/1989 | CA1252536A1 Data communication system with key data bits denoting significance of other data bits |
04/11/1989 | CA1252535A1 Adaptive communication network and method |
04/11/1989 | CA1252534A1 Signal transfer method and equipment for electric machine equipped with three-phase power supply cable |
04/06/1989 | WO1989003103A1 System and method for transferring status information between a plurality of status sites |
04/05/1989 | EP0310279A2 Two-terminal multiplexable sensor |
04/04/1989 | US4818970 For removal of asbestos materials |
03/29/1989 | EP0308571A2 Data accumulator and transponder |
03/28/1989 | US4817203 Remote control system |
03/28/1989 | US4817134 Automated matrix for communication line connections |
03/28/1989 | US4817040 Vehicle condition monitoring system |
03/28/1989 | US4816988 Master station apparatus in supervisory and control system |
03/21/1989 | US4815044 Seismic signal transmission system using relay radios |
03/14/1989 | US4812842 Device for the control of rotary printing machines |
03/14/1989 | US4812820 Electronic surveillance system and transceiver unit therefor |
03/14/1989 | EP0231291A4 Electronic surveillance system and transceiver unit therefor. |
03/09/1989 | WO1989002141A1 Method and system for transmitting information and controlling components |
03/08/1989 | EP0306124A2 Device for receiving a radiated electromagnetic signal arriving at a substantially horizontal surface |
03/08/1989 | EP0305791A2 High speed digital telemetry system for implantable devices |
03/08/1989 | EP0305630A2 Data accumulator and transponder |
03/08/1989 | EP0141749B1 Method for remote control with a direct view of a machine on the yard and transmitter-receiver arrangement adapted for carrying it out |
03/07/1989 | US4811011 Automatic metering apparatus |
03/01/1989 | EP0304997A2 Infra-red receiver |
03/01/1989 | CN1031436A 无线控制系统 Wireless Control System |
02/28/1989 | US4809266 Time-division multiplex transmission network system for an automobile vehicle |
02/28/1989 | US4808992 Component audio/video system with automatic turn-off of peripheral devices |
02/28/1989 | US4808841 Centralized control system for home electric appliances |
02/23/1989 | WO1989001724A1 Bidirectional roller deck control for a self guided vehicle |
02/22/1989 | EP0303991A2 Method of packetizing data |
02/21/1989 | US4807149 Measuring arrangement with a plurality of measuring units |
02/21/1989 | US4807052 Remotely controllable electronic apparatus |
02/21/1989 | US4806929 Remote monitor control system |
02/21/1989 | US4806905 Transmitter for transmitting on a two-wire transmitting line |
02/21/1989 | US4805519 Control system |
02/08/1989 | CN1030989A Method and a device for determining the number of people present in a determined space |
02/06/1989 | EP0203913A4 Control apparatus. |
02/01/1989 | EP0301680A2 Wireless control system |
02/01/1989 | EP0301679A2 Multiple-input power control system |
01/31/1989 | US4802114 Programmable remote control transmitter |
01/31/1989 | US4801934 Method and apparatus for transmission of data with data reduction |
01/25/1989 | CN1030557A Apparatus and method for transmiting signal of elevator |
01/24/1989 | US4800543 Timepiece communication system |
01/17/1989 | US4799059 Automatic/remote RF instrument monitoring system |
01/11/1989 | EP0298133A1 Apparatus for the prevention of disasters |
01/10/1989 | US4797669 Receiver |
01/04/1989 | EP0297662A2 System for data transmission |
01/03/1989 | US4796025 Monitor/control communication net with intelligent peripherals |
01/03/1989 | US4796019 Remote control system |
12/29/1988 | WO1988010465A1 Signal output device |
12/27/1988 | US4794371 Remote control apparatus |
12/27/1988 | US4793137 Control system |
12/21/1988 | EP0296011A1 Method and device for determining the number of persons present in a determined room |
12/21/1988 | EP0295864A2 Consumption meter |
12/20/1988 | US4792995 Bidirectional roller deck control for a self guided vehicle |
12/20/1988 | US4792972 Remote programming of CATV channel authorization unit |
12/15/1988 | WO1988009978A1 Process and device for determining the number of persons present in a given space |
12/14/1988 | EP0295146A2 Supervised, interactive alarm reporting system |
12/13/1988 | US4791311 Two-terminal multiplexable sensor |
12/08/1988 | DE3740638A1 Fahrzeugsteuerungs- und sicherheitsgeraet mit betreiberidentifikation Vehicle control and sicherheitsgeraet with operator identification |
12/07/1988 | EP0294191A2 Reception control apparatus for a television receiver |
12/01/1988 | DE3729942A1 Arrangement for driving solenoid valves |
11/29/1988 | CA1245740A1 Digital message format for two-way communication and control network |
11/24/1988 | DE3715733A1 Method and arrangement for data transmission between subscriber stations which are connected to a common bus system |
11/23/1988 | EP0291966A1 Control method of a robot system and apparatus for realizing the same |
11/15/1988 | CA1244947A1 Control system |
11/09/1988 | EP0289625A1 Remote commander |
11/03/1988 | WO1988008586A1 Energy management control apparatus |
11/02/1988 | EP0289253A2 System and method for controlling terminal equipment |
11/02/1988 | CN88100296A Information handling and control system |
11/01/1988 | CA1244089A1 Control system having a plurality of control command sources |
10/25/1988 | US4780872 Remote supervisory and controlling system |
10/20/1988 | WO1988008184A1 Measuring instrument with transmitter |
10/19/1988 | CN88101702A System for transmission of signals between reception assembly lowered into well and central and recording laboratory |
10/18/1988 | US4779264 Multiplex system including shielded cable |
10/11/1988 | US4777607 Interface device for control and monitoring of distribution panelboards |
10/11/1988 | US4777331 Method and arrangement for transmitting binary-coded information in a measuring system |
10/06/1988 | EP0170685A4 Control circuit with plural individual selectable controls. |
10/05/1988 | EP0285507A1 Signal transmission system between a receiver unit down in a borehole and a central control and receiving station |
09/29/1988 | DE3742929C1 Verfahren zur Verbesserung der Zuverlaessigkeit von Sprachsteuerungen von Funktionselementen und Vorrichtung zu dessen Durchfuehrung A method for improving the reliability of voice control of functional elements and device for its implementation |