Patents
Patents for G08C 19 - Electric signal transmission systems (14,477)
01/1989
01/31/1989US4802114 Programmable remote control transmitter
01/17/1989US4799059 Automatic/remote RF instrument monitoring system
01/12/1989WO1989000323A1 Optical data link
01/10/1989US4797669 Receiver
01/04/1989EP0297662A2 System for data transmission
01/04/1989CN1030135A Fully automatic method for instrument data reading and the equipment thereof
01/04/1989CN1030014A Computerized multi-channel instrument for dynamic electrocardio and heart rate measurement and analysis
01/03/1989US4796183 Rotating data transmission device
01/03/1989US4795954 Resolver controlling method and apparatus
01/03/1989CA1248200A1 Single-channel measuring head for remote metering apparatus
12/1988
12/29/1988WO1988010482A1 Device for remote transmitting of rotation angle and torque between driving and driven shaft
12/28/1988EP0258261B1 Circuit for coding the value of two magnitudes measured in a tire, and device for monitoring tires by using said circuit
12/27/1988US4794511 Apparatus and method for generating two-phase signals for use with a resolver to digital converter
12/27/1988US4794372 Two-wire DC signal telemetering system
12/21/1988EP0295864A2 Consumption meter
12/07/1988EP0294159A1 Branched sensor system
12/07/1988EP0294139A2 Safety barriers for 2-wire transmitters
12/07/1988CN87104305A Electric signal transmission system
12/07/1988CN87103662A Photoelectric reading amplifier
11/1988
11/29/1988US4788542 Remote control device for vehicle locks
11/22/1988US4786862 Watchdog circuit for transmission line sensor module
11/17/1988WO1988009026A1 Improvements relating to rotary encoders
11/17/1988EP0290438A1 Circuit for transmitting values measured at vehicle wheels.
11/08/1988US4783659 Analog transducer circuit with digital control
10/1988
10/26/1988CN88101945A Two-wire loop electric circuit arrangement
10/25/1988CA1243750A1 On-line serial communication interface from a transmitter to a current loop
10/20/1988WO1988008185A1 Two-wire loop electric circuit arrangement
10/19/1988CN88101902A Apparatus for collecting seismic data and transmitting it to centre system of control and record while drilling
10/18/1988US4779071 System for transmitting commands
10/12/1988EP0286606A2 Self-powered automatic control module for a remote electric load
10/11/1988US4777331 Method and arrangement for transmitting binary-coded information in a measuring system
10/11/1988CA1243095A1 On-line serial communication interface from a current loop to a computer and/or terminal
10/05/1988EP0285519A1 Apparatus for borehole seismic data acquisition and their transmission to a central control and recording system
09/1988
09/22/1988WO1988007184A1 Device employing a tensile force meter for measuring tensile force
09/22/1988WO1988007183A1 Tensile force meter determining tensile force during cable laying
09/21/1988EP0283106A1 Remote monitoring and controlling system
09/14/1988EP0282067A2 Circuit for the application of direct current voltage signals to a cable with a plurality of conductors
09/13/1988CA1242019A1 Voltage pulse to current regulating converter
09/13/1988CA1242018A1 On-line serial communication interface from a computer to a current loop
09/07/1988WO1988006549A1 A dive parameter indicating assembly
09/06/1988CA1241723A1 On-line serial communication interface to a transmitter from a current loop
08/1988
08/30/1988US4768207 Systems for receiving messages transmitted by pulse position modulation (PPM)
08/25/1988WO1988006385A1 Transmission and reception of data
08/24/1988EP0279711A1 Method and device for signal transmission between two parts
08/04/1988DE3736902A1 Datenuebertragungsanordnung mit einem anschlussstecker Datenuebertragungsanordnung with a mains plug on
08/04/1988DE3644198C1 Vorrichtung zur Abfrage des Schaltzustandes eines in zwei Schaltstellungen umschaltbaren Umschalters Device to query the status of an object can be switched in two positions switch
08/02/1988CA1240020A1 Telesignalling method and device for a digital transmission link
07/1988
07/27/1988EP0275781A1 Method and apparatus for the transmission to a central recording apparatus of seismic data collected by acquisition devices spread on the ground
07/27/1988CN87212506U Interface used for plan series optical fibre communication system
07/26/1988US4760547 Remote controlled multi-station irrigation system with DTMF transmitter
07/26/1988US4760275 Communication system for vehicle
07/20/1988EP0274767A1 Method and circuit for determining the pick-off position of a remotely controlled resistance transmitter
07/19/1988US4758837 4-20 milliampere transmitter
07/19/1988US4757721 Torque transducers
07/13/1988EP0274257A1 Gauge driving system
06/1988
06/30/1988WO1988004814A1 Device for checking the switching state of a commutator switchable between two switching positions
06/29/1988EP0272750A2 Transmission arrangement for the measured values of a sensor
06/28/1988US4754276 System to display sawblade angle and height
06/22/1988CN87106642A Digital converter apparatus for improving output of two-wire transmitter
06/21/1988US4752775 Coded message remote communication system
06/16/1988WO1988004433A1 Prepayment metering system using encoded purchase cards
06/01/1988EP0268902A1 Coded remote control with a code-changing facility
05/1988
05/31/1988US4748446 In a communication system
05/25/1988EP0268238A2 Portable code transmitter and wireless remote control system including same
05/19/1988DE3638493A1 Remote control by wire for d.c.-controlled regulating units
05/18/1988EP0267301A1 System for remote transmission of angle of rotation and of force between driving and driven shafts
05/11/1988EP0266553A2 Two-wire transmission system
05/11/1988EP0266392A1 Local control system for domestic appliances and alarm devices
05/10/1988US4743901 Signal transmission system
05/10/1988CA1236551A1 Telesignalling device and method whereby data transmitted by a digital link are replaced by messages
05/04/1988EP0265935A1 Infrared transmitter for coded messages using a fixed code and a great number of combination facilities
05/03/1988US4742574 Two-wire 4-20 mA electronics for a fiber optic vortex shedding flowmeter
04/1988
04/27/1988EP0165304A4 Phase analog encoding system with compensation.
04/19/1988CA1235509A1 Meter data gathering and transmission system
04/13/1988EP0263233A2 Transfer of signals from a sensor unit
04/12/1988US4737787 Two-wire communication system
04/07/1988WO1988002528A1 Digital converter apparatus for improving the output of a two-wire transmitter
04/06/1988EP0262659A2 Receiver
04/06/1988EP0262658A2 Two-wire signal transmission system
04/05/1988US4736346 System for interconnecting elements of a receiving device of great length, whereby the number of recording traces corresponding to the sensed signals can be doubled
04/05/1988CA1234874A1 Direct view remote control method for workings machine and transmitter and receiver assembly for carrying out such method
03/1988
03/29/1988US4734873 Method of digital process variable transmitter calibration and a process variable transmitter system utilizing the same
03/15/1988US4731575 Prepayment metering system using encoded purchase cards
03/09/1988EP0258261A1 Circuit for coding the value of two magnitudes measured in a tire, and device for monitoring tires by using said circuit.
03/08/1988US4729242 Conduction-responsive meter head
03/01/1988US4729125 On-line serial communication interface to a transmitter from a current loop
03/01/1988CA1233526A1 Method for transmitting messages between a central station and several distant stations
03/01/1988CA1233523A1 Optical encoder
02/1988
02/25/1988WO1988001417A1 Analog transducer circuit with digital control
02/24/1988EP0256207A1 Watchdog circuit for transmission line sensor module
02/23/1988US4727540 Apparatus for remote signalling on a digital transmission link
02/16/1988US4724915 Device for controlling a motor-driven power steering system for a vehicle
02/10/1988CN86205791U Theft-defence alarm with remote controlling electronic cipher circuits
02/09/1988US4724435 Bi-directional data telemetry system
02/02/1988US4723122 Remotely calibratable instrument system
02/02/1988CA1232330A1 Radio remote control apparatus with encoded signals for automatic rolling doors
01/1988
01/26/1988US4721953 Remote control system
01/20/1988CN87103886A Digital telecontrol transport unit
01/19/1988US4720851 Meter reader
01/13/1988EP0252184A1 Pit cover meter reader