Patents
Sitemap › H04 - Electric communication technique › H04Q - Selecting › 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
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)
11/1981
11/11/1981EP0039624A1 Data communication system
11/04/1981EP0038941A1 Remote control device
11/03/1981US4298978 Data communication apparatus
11/03/1981US4298860 Monitor and control apparatus
11/03/1981CA1111972A1 Control system using time division multiplexing
11/03/1981CA1111950A1 Distributed control system
10/1981
10/28/1981EP0038592A1 Information collecting central station and especially fire detection central station
10/15/1981WO1981002962A1 Electrical supervisory control and data acquisition system
10/15/1981WO1981002960A1 Control unit for automatic meter reading system
10/15/1981WO1981002958A1 Terminal unit for automatic meter reading system
10/07/1981EP0037238A1 A digital electronic remote control system
10/06/1981US4293948 Data transmission system
09/1981
09/29/1981CA1109964A1 Error-rejecting data transmission system
09/23/1981EP0035992A1 Data transmission arrangement.
09/22/1981US4291360 Remote control wiring system
09/16/1981EP0035731A2 Method and arrangement for transmitting data signals
09/15/1981US4290134 Multiplex information handling system
09/09/1981EP0035411A2 Switching circuit for a remote control system
09/09/1981EP0035277A1 Sequential transmission system for connecting without addressing a plurality of subscribers to an exchange
09/01/1981US4287508 Information transmitting and receiving apparatus
08/1981
08/11/1981US4283636 Electronically controlled power supply rail
07/1981
07/15/1981EP0031874A1 Electrical installation arrangement
07/14/1981US4279012 Programmable appliance controller
07/14/1981CA1105133A1 Circuit for use in remote control of a signal receiver
07/08/1981EP0031404A1 Remote control circuit
07/07/1981CA1104662A1 Signal generator for producing signals for a remote control
06/1981
06/16/1981CA1103357A1 Meter dial encoder for remote meter reading
06/16/1981CA1103333A1 Supervisory and control system for environmental conditioning equipment
06/02/1981US4271506 High speed data switching node
06/02/1981CA1102424A1 Digital communication system for transmitting digital information between a central station and a number of remote stations
05/1981
05/26/1981US4270185 Memory control circuitry for a supervisory control system
05/19/1981US4268822 Apparatus for determining the state of each of a plurality of bi-state devices
05/19/1981CA1101516A1 Remote control system
05/06/1981EP0028188A1 Beacon system for stage-by-stage transmission of information
05/06/1981EP0028178A1 Relay and method for telecontrol
05/05/1981US4266097 Device control system
05/05/1981CA1100589A1 Single wire power/signal system for vehicle auxiliary devices
04/1981
04/28/1981US4264982 Drive circuit for an infrared remote control transmitter
04/28/1981US4264880 Signal generator for producing pulse signals for a remote control
04/28/1981CA1100229A1 Contrast/color control for a television receiver
04/22/1981EP0027436A1 Safety device at remote control of hydraulic or pneumatic machine tools
04/22/1981EP0027435A1 Device for remote control of hydraulic or pneumatic machine tools
04/21/1981US4263591 Electric transmission system
04/21/1981US4263580 Monitor system for operation of solenoid operated devices
04/14/1981US4262286 Apparatus for monitoring fire and effecting control operation
04/14/1981CA1099413A2 Method and apparatus for digital data transmission in television receiver remote control systems
03/1981
03/17/1981US4257032 Circuit and process for automatically addressing a plurality of mobile substations from a central station
03/17/1981US4257031 Digital remote control system
03/17/1981CA1097763A1 Method and apparatus for eliminating conflicts on a communication channel
03/03/1981US4254499 Signal transmission system in a digital controller system
03/03/1981CA1096946A1 Electrical load management system
02/1981
02/24/1981US4253087 Self-assigning address system
02/17/1981US4251812 Remote control system
02/03/1981US4249162 Remote control switch assembly
01/1981
01/28/1981EP0023160A1 Digital remote control system
01/27/1981CA1094663A1 Automatic remote control system for mercury cells for the production of chlorine and caustic soda
01/20/1981US4246611 Digital control system and a method of transmitting control data in such a system
01/07/1981EP0021062A2 Method for performing a plausibility test concerning successively occurring time information in traffic-light systems
01/07/1981EP0021061A1 Traffic signalling system
01/07/1981EP0021059A1 Method and circuit arrangement for synchronising the operation of control devices, especially road traffic signalling systems
12/1980
12/23/1980US4241456 Remote-controlled receiver
12/23/1980US4241331 Remote control system with proportional value transmission
12/23/1980US4241330 Multiple-processor digital communication system
12/23/1980US4241237 Apparatus and method for remote sensor monitoring, metering and control
12/23/1980CA1092242A1 Method and apparatus for digital data transmission in television receiver remote control systems
12/16/1980US4240148 Centrally controlled conveyor system
12/16/1980CA1091790A1 Electro-optical switching system
11/1980
11/27/1980WO1980002631A1 Data transmission arrangement
11/27/1980WO1980002628A1 Device control system
11/26/1980EP0019287A1 Data communications system
11/26/1980EP0019245A1 Device control system
11/25/1980US4236144 Inspection system for a group of tanks
11/14/1980EP0016155A4 Remote supervisory system.
11/11/1980CA1089537A1 Remote meter reading system
11/04/1980US4232231 Road vehicle electrical systems
11/04/1980CA1089020A1 Digital electronic control and switching arrangement
10/1980
10/28/1980US4231031 Remote control system capable of transmitting the information with the aid of an infra red beam using PPM or an ultrasonic beam using PDM
10/28/1980US4231019 Remote control arrangement for a medical appliance
10/28/1980US4231015 Multiple-processor digital communication system
10/28/1980US4230989 Communications system with repeater stations
10/21/1980US4229763 Optical high density FM recording device with corrective signal
10/21/1980CA1088179A1 Computer controlled distribution apparatus for distributing transactions to and from controlled machines tools
10/15/1980EP0016868A2 Method and apparatus to multiply the exits of a programmable controller
10/14/1980CA1087742A1 Monitoring circuit
10/07/1980US4227259 Circuit for use in remote control of a signal receiver
10/01/1980EP0016155A1 Remote supervisory system.
10/01/1980EP0016032A1 Identification process for remote control operating systems in time sharing communication
09/1980
09/30/1980CA1086852A1 Gathering line leak detection system tester
09/23/1980CA1086397A1 Polling an data communication system having a pulse position to binary address conversion circuit
09/23/1980CA1086396A1 Multiplex interrogation system using pulses
09/09/1980CA1085482A1 Data transmission system using analog to pulse width to digital conversion
09/09/1980CA1085481A1 Data communication receiver and transfer apparatus
08/1980
08/12/1980US4217647 Process control valve apparatus
08/06/1980EP0013982A1 Method and apparatus for remote sensor monitoring, metering and control
08/05/1980CA1083242A1 Monitor and alarm apparatus in loop line system
07/1980
07/29/1980US4215349 Remote control system for an electrical apparatus
07/22/1980CA1082312A1 Remote control transmitter and receiver for use with a television reciver
07/15/1980US4213119 Remote meter reading system providing demand readings and load control from conventional KWH meters
07/09/1980EP0013103A1 Motor vehicle electrical system
07/08/1980US4212078 Computer controlled facility management system (FMS)
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