Patents
Patents for G08C 19 - Electric signal transmission systems (14,477)
09/1991
09/04/1991CN2084222U Single wire far distance multi-channel controller
09/03/1991US5045776 Metering apparatus
08/1991
08/29/1991DE4005632A1 Electrical control group circuit - uses four up=down counters with gates to transmit using single conductor
08/27/1991US5043723 Memory remote control device
08/22/1991WO1991012599A1 Control unit
08/20/1991US5041827 Apparatus for the preparation and wireless transmission of measured values
08/20/1991US5041817 Arrangement for the inductive querying of and supplying of power to an isolated circuit having an electrical consuming device
08/14/1991EP0440942A2 Method for the disposal of electric information values
08/13/1991US5040154 Method of monitoring the state of extended shell
08/07/1991CN2082439U Inductive position transmitter
08/01/1991CA2035260A1 Universal pressure measurement interface
07/1991
07/24/1991CN1053294A Universal pressure measurement interface
07/24/1991CN1013312B Apparatus for collecting and transmitting seismic data while drilling
07/11/1991DE4042129A1 Send-receive procedure for remote control device - processing keyed signals with stored key code and sign code enabling several electrical appliances to be operated by single control
07/10/1991EP0409880A4 Actuator and communication system
07/09/1991US5031159 Hydroacoustic ranging system
07/09/1991US5030950 Switched capacitance meter reading device
07/03/1991EP0305484B1 Device employing a tensile force meter for measuring tensile force
07/02/1991US5029271 Superregenerative detector
07/02/1991US5028919 Learning remote control device
07/02/1991US5028876 Precision capacitive transducer circuits and methods
07/02/1991CA2009910A1 Electrode array made from concave electrodes for meter reading device
06/1991
06/26/1991CN2079781U Electric singal transmission device for valve
06/25/1991US5025653 Gas detection system
06/12/1991EP0432101A1 Multiplex measuring device with a plurality of sensors
06/12/1991EP0308453B1 Tensile force meter determining tensile force during cable laying
06/04/1991US5022029 Data transmission method and device
05/1991
05/22/1991EP0290438B1 Circuit for transmitting values measured at vehicle wheels
05/14/1991CA1284209C Transmission having one central seismic data recording device, for signalsemitted by a set of probes
05/14/1991CA1284182C Humidity resistant meter reading device
05/10/1991WO1991007736A1 Inductive coupled high temperature monitor
05/10/1991CA2045507A1 Inductive coupled high temperature monitor
05/01/1991CN2076283U Multichannel wireless remote control switch
05/01/1991CN1051110A Automatic acquisition processing system for measuring meter
04/1991
04/25/1991DE4031824A1 Rotating measuring signal transmitter for blast-pressure wave machine - uses electrically isolated transmitter in rotor to transfer charge
04/23/1991CA2009069A1 Electrode array for meter reading device
04/20/1991CA2003095A1 An improved meter reading device
04/17/1991EP0422663A2 Communicator for field instruments and method of supplying power to this communicator
04/09/1991US5006841 Addressable transducer with improved response signal processing
04/09/1991CA1282833C Magnetically activating optical data link
04/03/1991WO1991005293A1 Field-mounted control unit
04/03/1991EP0420295A1 An RF transponder for use in an automatic/remote instrument monitoring system
04/03/1991EP0419716A1 Contactless transmitting method for physical quantities measured in a rotating component
03/1991
03/26/1991CA1282118C2 Automatic/remote rf instrument monitoring system
03/19/1991CA1281557C Two-wire 4-20 ma electronics for a fiber optic vortex shedding flowmeter
03/14/1991DE3918131A1 Receiver for coded EM pulse transmissions
03/12/1991US4999734 Electrode array made from concave electrodes for meter reading device
03/12/1991US4999606 Underwater transmitter/receiver
03/12/1991CA1281419C Prepayment metering system using encoded purchase cards
03/06/1991EP0415655A2 Two-wire power and position control system
03/06/1991CN2072707U General ships and vehicles clock automatic record alarm supplementary device
02/1991
02/21/1991DE3927125A1 Car information signal electronic evaluator - transmits output signals as superimposed current to display and command appts.
02/19/1991US4994799 System for the electrical transmission of an angular position
02/19/1991CA1280486C Two-wire transmitter with threshold detection circuit
02/13/1991EP0412825A2 Signal compensator
01/1991
01/30/1991EP0410878A1 Method for analogue set point transmission by cable and system for carrying out this method
01/30/1991EP0409880A1 Actuator and communication system.
01/29/1991US4989146 Automotive trouble diagnosing system
01/29/1991US4988992 Such as garage door, and a security device
01/29/1991US4988990 Dual master implied token communication system
01/24/1991DE4022178A1 Command transmitter with number of function modes - has number of adjusters for function mode selection and data adjustment
01/23/1991CN2070019U Directional piezoelectric acceleration transducer
01/22/1991US4987297 Method and apparatus for automatically reading a mechanical fluid meter
01/17/1991DE4021258A1 Field sensor communication system - uses digital techniques to collect data from sensors and transmit analog current values
01/16/1991EP0407654A2 Indicator device and method of determining the absolute position of a pointer in the same
01/16/1991CN1048618A Fully electric controlled high power executive device
01/16/1991CN1048617A 场传感器通信系统 Field sensor communication system
01/15/1991US4985895 Reassembling transmitted bytes of data
01/15/1991CA1279117C Local control system for domestic appliances and alarm devices
01/10/1991WO1991000524A1 Method and electrical arrangement for processing measurement signals
01/09/1991EP0406486A1 Control system for controlling consumer apparatus, in particular audio and/or video apparatus and consumer apparatus for use in such control system
01/09/1991EP0151619B1 Two wire circuit having an adjustable span
01/08/1991US4983964 System for data transmission
01/03/1991DE3920648A1 Verfahren und elektrische anordnung zur messsignalverarbeitung Method and arrangement for electrical measurement signal processing
01/03/1991DE3919749A1 Inductive rotation angle sensor with coupling coil - uses magnetic coupling to secondary and/or primary coil variation with rotation angle
01/01/1991US4982175 Telemetry circuit with noise immunization
12/1990
12/29/1990WO1991000413A1 Dynamometric measuring device for drill pipe
12/27/1990EP0404630A1 Device for receiving information supported by two capacitor-coupled lines, especially for vehicles
12/27/1990EP0403691A1 Method of detecting a predetermined pointer position and display device therefor
12/26/1990CN1048134A Simple remote-control device for black-and-white tv set
12/26/1990CN1048132A Remote control receiving for home electric applicance and receiving method thereof
12/25/1990US4980681 Direct view remote control method for workings machine and transmitter and receiver assembly for carrying out such method
12/19/1990EP0402620A2 Wireless transmitting-receiving apparatus for a bicycle
12/18/1990US4979152 Device for transmitting signals by radio and cable between a central control and recording system and data acquisition devices
12/12/1990EP0401328A1 Method of measuring the angle of inclination of trench walls.
12/12/1990EP0386042A4 Two-wire transmitter with threshold detection circuit
12/12/1990CN2067433U Photoelectric controller
12/12/1990CN1047746A Intelligent electric performer
12/12/1990CN1047745A I/o protocol for control system and device and method executing said i/o protocol
12/05/1990EP0348414A4 Transmission and reception of data
12/04/1990US4974607 System for centralized management of medical data
11/1990
11/29/1990WO1990014650A1 System for transmitting and receiving remote control signals
11/27/1990US4973957 Data collecting system
11/27/1990CA1277033C Automatic metering apparatus
11/20/1990US4972186 Resolver excitation circuit
10/1990
10/31/1990EP0395097A2 Remote control system for audio/video devices
10/31/1990DE3913901A1 IC engine measurand transmission and digitising method - converting measured value to pulse density signal for transmission
10/30/1990US4967302 Safety barriers for 2-wire transmitters
10/24/1990EP0393914A1 Communication systems
10/24/1990EP0393023A1 Communication network.