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