Patents
Patents for G08C 19 - Electric signal transmission systems (14,477)
06/1981
06/16/1981CA1103357A1 Meter dial encoder for remote meter reading
06/09/1981US4272822 Apparatus for converting a mechanical displacement to an electrical signal
06/03/1981EP0029499A1 Data logger for test specimens
06/02/1981CA1102411A1 Admittance measuring system for monitoring the condition of materials
05/1981
05/26/1981US4270077 Demodulatorless synchro position sensor apparatus utilizing square wave excitation
05/26/1981US4270061 Current transformer input system for AC conversion devices
05/26/1981CA1101964A1 Remote control transmitter
05/20/1981EP0028640A1 Telemetry transmission system for analog and digital data from an implanted source
05/19/1981US4268819 Synchro motor type instrument
05/19/1981CA1101516A1 Remote control system
05/12/1981US4267546 Alarm device for informing reduction of pneumatic pressure of vehicle tires
05/05/1981USRE30597 Two wire current transmitter responsive to a resistive temperature sensor input signal
05/05/1981CA1100589A1 Single wire power/signal system for vehicle auxiliary devices
04/1981
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
04/14/1981CA1099410A1 Data acquisition and display device
04/14/1981CA1099346A1 Isolation circuit with duty cycle feedback
03/1981
03/24/1981CA1098202A1 Telemetry system
03/18/1981EP0025077A1 A two-wire remote measuring system
03/17/1981US4257010 Method and apparatus for sensing and maintaining oscillations in an oscillating system
03/10/1981US4255743 Method for digital interpolation of a period of a three-phase analog signal
03/10/1981US4255682 Multipolar resolver
03/05/1981WO1981000619A1 A device for central reading and registration of customers'power consumption
03/03/1981US4253914 Feeding device
03/03/1981CA1096953A1 Remote istrumentation apparatus
02/1981
02/17/1981US4251812 Remote control system
02/17/1981CA1096030A1 Remote control receiver
02/10/1981US4250490 Two wire transmitter for converting a varying signal from a remote reactance sensor to a DC current signal
02/10/1981CA1095606A1 Dual frequency narrow-band frequency modulated keyable control circuit and keying circuit therefor
02/10/1981CA1095287A2 Electronic thermometer system
02/03/1981CA1094847A1 Digital readout gauge
01/1981
01/27/1981US4247810 Angle to bipolar analog converter
01/20/1981CA1094195A2 Sensors for sensing a plurality of parameters
01/13/1981US4245347 Remote equipment control system with low duty cycle communications link
01/06/1981CA1093212A1 Synchro-to-digital converter
01/06/1981CA1093164A1 Biasing and scaling circuit for transducers
12/1980
12/30/1980US4242665 Two-wire transmitter
12/30/1980US4242664 Remote control arrangement
12/30/1980US4241509 Modular electronic apparatus for processing a plurality of measurement signals
12/30/1980CA1092532A1 Kelly and saver sub combination with telemetering means
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
12/16/1980US4240067 Device for the transmission by load variation of an alternating analog signal from a sensor
12/11/1980WO1980002784A1 Digital data communication system
12/10/1980EP0020195A1 Multiplexer system forming an asynchronous interface for recording orders and controls
12/10/1980EP0019920A1 Digital data communication system
12/09/1980US4238781 Capacitive angular displacement transducer for remote meter reading
12/02/1980US4237417 Signal transmission apparatus of two-wire type
11/1980
11/27/1980WO1980002498A1 Telemetry transmission system for analog and digital data from an implanted source
11/25/1980US4236086 Apparatus for the detection and processing of electric signals
11/11/1980CA1089537A1 Remote meter reading system
11/04/1980US4232300 Level measuring system using admittance sensing
11/04/1980US4232297 Remote control arrangement using pulse spacing modulator
11/04/1980CA1089058A1 Adaptive compass drive radar system
10/1980
10/30/1980WO1980002339A1 Multiplex apparatus forming transparent and atemporal interface for recording orders and commands
10/28/1980US4231094 Method and device for determining the phase intercept in a system employing phase-shift keying modulation
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
10/28/1980CA1088638A1 Frequency selective detector circuit
10/07/1980US4227259 Circuit for use in remote control of a signal receiver
10/07/1980US4227144 Error compensation of synchro control transmitters
09/1980
09/30/1980US4225796 Frequency-to-current conversion circuit
09/09/1980US4222041 Danger alarm system
09/09/1980CA1085482A1 Data transmission system using analog to pulse width to digital conversion
08/1980
08/26/1980CA1084599A1 Detection and maintenance of oscillations
08/20/1980EP0014653A1 System for conveying information between a transmitting centre and receiving stations, the system being provided with control means for gaining access to the conveyed information
08/19/1980CA1084136A1 Sensor data input by means of analog to pulse width- to digital converter
08/07/1980WO1980001635A1 Information transmission system between a transmission center and receivers,this system being provided with a control means for access to the transmitted information
08/06/1980EP0013982A1 Method and apparatus for remote sensor monitoring, metering and control
08/05/1980US4216391 Circuit arrangement for generating a binary-coded pulse train
08/05/1980US4215582 Ultrasonic temperature measuring apparatus
07/1980
07/29/1980US4215349 Remote control system for an electrical apparatus
07/29/1980US4215276 Remote control of electrical power distribution system and method
07/23/1980EP0013318A1 Reconfigurable data entry terminal
07/22/1980US4214231 In-bore telemetry information measuring system
07/22/1980US4214229 Remote control apparatus
07/22/1980CA1082346A1 Marine detector spread having arrays of different lengths
07/08/1980US4211998 Method of and remote control apparatus for remotely controlling a medical appliance
07/08/1980US4211235 Programmer for implanted pacer
06/1980
06/24/1980CA1080320A1 Variable modulus selective calling circuit
06/24/1980CA1080307A1 Optical telemetry for aluminium reduction plant bridge cranes
06/17/1980US4208654 Remote control transmitter
06/17/1980US4208081 Easily reconfigurable data entry terminal
06/10/1980US4207505 Measuring system
06/10/1980US4207474 Sequential two tone detector
06/03/1980US4206411 Radio controlled model aircraft control system
06/03/1980US4206397 Two wire current transmitter with improved voltage regulator
05/1980
05/27/1980US4205327 Two wire current transmitter with adjustable current control linearization
05/06/1980US4201979 Conveying data signals between relatively rotatable units
05/06/1980CA1077167A1 Infrared line scanning instrument
04/1980
04/30/1980EP0010303A1 Signal conditioner
04/29/1980US4200911 Control of the flow rate and fluid pressure in a pipeline network for optimum distribution of the fluid to consumers
04/22/1980CA1076229A1 Two-wire transmitter with totalizing counter
04/15/1980US4198621 Electrical remote sensing system
04/15/1980US4198620 Remote control receiver
04/15/1980CA1075791A1 Two-wire, multiple-transducer communications system
04/08/1980CA1075339A1 Down hole pressure/temperature gage connect/disconnect method and apparatus
04/02/1980EP0009102A1 A multipolar resolver
04/01/1980US4195411 Remote gaging apparatus