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7343261 |
Underwater sensor transmitter probe
An electronic apparatus for measuring water speed and water temperature then periodically transmitting said data during controlled depth fishing wherein an underwater probe is secured to and...
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7332679 |
Weighing device equipped with power supply mechanism having fixed section and movable section
A weighing section includes a plurality of weighing members and a power supply mechanism. The weighing members weigh an object while moving. The power supply mechanism includes a fixed section, a...
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RE40018 |
Time-multiplexed short-range magnetic communications
A magnetic induction time-multiplexed two-way short-range wireless communications system, and related method, includes a first portable unit and a second portable unit. The first portable unit...
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7193832 |
Magnetically coupled device and electronic equipment employing same
If external magnetic field(s) (external noise) is/are present, equivalent noise component(s) might be produced at both receiving coil(s) and dummy coil(s), and respective noise components from...
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7079012 |
System and method for distributing broadband communication signals over power lines
The present invention is directed to a method for decreasing high frequency (HF) radiation emission in a power line. The method involves transmitting a utility power signal over the power line and...
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7064676 |
Downhole data transmission system
A system for transmitting data through a string of downhole components. In one aspect, the system includes first and second magnetically conductive, electrically insulating elements at both ends of...
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7053791 |
Inductive transformer
The invention relates to an inductive transmitter for transmitting measurement data and electrical energy between two components ( 1, 2 ) that move in relation to each other, having at least one...
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7005967 |
Validation of the presence of an electromagnetic transponder in the field of an amplitude demodulation reader
A terminal for generating an electromagnetic field adapted to communicating with at least one transponder, and a method for controlling such a terminal including: an oscillating circuit adapted to...
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6970099 |
Apparatus, system, and method for detecting and reimpressing electrical charge disturbances on a drill-pipe
A signal repeater, a system utilizing one or more signal repeaters, and a method for detecting a transient disturbance in the surface charge on drill pipe, which system, apparatus and method are...
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6929396 |
System for temperature monitoring
A system for monitoring the temperature prevailing in the stator unit of an electric drive includes a temperature sensor that is integrated into the windings of the stator unit and that transmits a...
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6885310 |
Phase difference detection device and method for a position detector
Two A.C. output signals amplitude-modulated in accordance with two function values (sine and cosine) differing from each other in correspondence to a position-to-be-detected are received from a...
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6859762 |
Low voltage low power signal processing system and method for high accuracy processing of differential signal inputs from a low power measuring instrument
A low voltage low power signal processing system and method for use in low power and/or portable measuring instruments such as linear or rotary encoders, electronic calipers and the like. In one...
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6771064 |
Inductive sensor apparatus and method for deploying
An apparatus for sensing variations in an inductive field, or inductive sensor. The inductive sensor is adapted for detecting the lateral offset of a vehicle within a roadway, especially those with...
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6756759 |
Angle or position detecting apparatus, method thereof, servo apparatus, and servo method, and motor
A current target angle stored in a target angle register is subtracted from the immediately preceding target angle stored in a register by a subtracting device. As a result, the length (amount) and...
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6696974 |
Cable device for detecting and monitoring rock and soil displacement
A cable composed of material capable of conducting light, sound, or electricity is inserted by appropriate means into a material to be examined. A portion of said cable having predetermined...
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6670804 |
Method for determining the angular position of a rotative part which performs a rotational movement
A winding band including at least one conductor is arranged on a carrier in a housing, and is coupled to a rotative part, so that a wound-up length of a wound-up portion of the winding band varies...
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6650226 |
Detection, by an electromagnetic transponder reader, of the distance separating it from a transponder
A terminal for generating an electromagnetic field adapted to cooperate with at least one transponder when the transponder enters the electromagnetic field, the terminal including circuitry for...
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6522951 |
Method and device for controlling a robot
A method and a device for controlling a robot on the basis of data from sensors with their own sensor data structures. For solving the problem of adapting to different sensors and their data...
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6486796 |
Relative-displacement detecting unit
A detect ion unit 10 , which is disposed in opposite relation to a scale 12 , includes a transmission coil 10 a and a detection coil 10 b . A metal film 10 g formed of two opposing metal...
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6429787 |
Rotating RF system
A system for transmitting data between a rotating system and a stationary system. This system has a patch antenna affixed to the surface of a rotating body. A transmitter splits an RF signal into n...
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6366218 |
Articulated transformer for measuring torque on a rotating shaft
The use of an articulated transformer whose windings do not completely encircle the shaft, and with a small gap in-between being provided so that the mounting structure can be opened and the...
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6366217 |
Wide area remote telemetry
A wide-area remote telemetry system which monitors and controls remote devices by means of a information control system. The system uses a plurality of sensor interface modules which constantly...
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6348677 |
Sensor circuit for detecting the presence of a pan on an electric cooker hob
On an electric cooker the sensor circuit ( 1 ) detects the presence of a pan ( 2 ) on each heater (F 1 -F 4 ) and comprises a microcontroller ( 4 ) and a generator ( 6,7 ) that supply a...
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6329928 |
Magnetic induction meter intra-building communication system
A communication system which utilizes the building metal frame as a communication medium is described. More particularly, and in accordance with one embodiment of the present invention, a wire coil...
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6278379 |
System, method, and sensors for sensing physical properties
Several sensors are provided for determining one of a number of physical roperties including pressure, temperature, chemical species, and other physical conditions. In general, the sensors feature...
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6275043 |
Test device for testing a module for a data carrier intended for contactless communication
A test device (1) for testing a module (2) for a data carrier intended for contactless communication includes a carrier signal generator (14) which is arranged to generate a carrier signal (CS)...
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6271767 |
Inductively coupled underwater modem
The present invention provides a subsurface instrument and a system for the collection and transmission of deep ocean data utilizing standard buoy mooring lines. The system includes a moored...
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6243023 |
Encoder and parameter establishing device therefor
An encoder comprises position detecting device for detecting a magnetic pole position and a rotational position of a motor. The encoder also includes a memory portion for storing parameter...
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6181257 |
Universal utility usage data gathering system
A universal utility usage data gathering system that is capable of operating with any other read pad data gathering system, regardless of protocol. The universal system comprises of two components....
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6166655 |
Device and method for identifying magnetic induction coordinate
A device and a method for identifying magnetic induction coordinate comprise a movable member which is provided with a magnetic matter and is moved to pass a plurality of sensors arranged in...
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6154635 |
Antenna driving device for transponder
An antenna coil (21) for generating a magnetic field (25) to supply power to a transponder (26) is energized through switching devices (23 and 24) connected between Vcc and GND of a D.C. power...
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6145445 |
Rail vehicle bogie, a method of machining the bogie, and a tool for implementing the method
The bogie comprises an axle (14) rotatably mounted on a fixed underframe, and measurement apparatus for measuring a physical magnitude related to rotation of the axle (14). The measurement...
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6121894 |
Low cost time domain reflectometry system for bridge scour detection and monitoring
An apparatus for detecting and monitoring scouring around a structural mer uses time-domain reflectometry (TDR) to measure the level of sediment around a submerged portion of the structural member...
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6111520 |
System and method for the wireless sensing of physical properties
Several sensors are provided for determining one of a number of physical properties including pressure, temperature, and other physical conditions. In general, the sensors feature a resonant...
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6075461 |
Disposable electromagnetic signal repeater
An apparatus, method and system for communicating information between downhole equipment (40) and surface equipment is disclosed. The electromagnetic signal repeater apparatus (34, 36) comprises a...
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5942991 |
Resonant sensor system and method
Apparatus, and related method, for remotely measuring at 1east one environmental condition includes an electromagnetically resonant sensor having a measurable resonance characteristic (e.g., center...
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5917429 |
Contactless communication system
Digital data are communicated between a portable data-gathering unit and a data-receiving unit without direct electrical connection by transmitting the data over a contactless connection system. In...
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5907292 |
Circuit for transmitting a measurement current from an intrinsically safe sensor to a non-intrinsically safe area
This circuit arrangement comprises a transformer (2) for transmitting a measurement current (I), which is output by a sensor arrangement (1) at a measurement location situated in an intrinsically...
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5898388 |
Rolling contact bearing with rotational speed measuring device
A rolling contact bearing with rotational speed measuring device, in particular a wheel bearing for motor vehicles for telemetric transmission of energy and signal between bearing and environment,...
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5880677 |
System for monitoring and controlling electrical consumption, including transceiver communicator control apparatus and alternating current control apparatus
A system that monitors and controls electrical power consumption that will be retrofitted to a typical consumer electrical power arrangement (typical arrangement-electrical feed line from a...
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5825302 |
System and method for transmitting data using reflected electromagnetic radiation
A system for transmitting data, comprising an interrogator (14) for transmitting an interrogation signal, a plurality of data collectors (12) for collecting data, a plurality of transponders (11)...
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5815089 |
Device for transmitting signals from position detector and method of such signal transmission
A transmitting device, for transmitting position detector signals, comprises a controller for processing signals on various kinds of data from an object of interest; a position detector that has a...
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5808558 |
Remote universal send/receive utility usage data gathering system
A universal utility usage data gathering system that is capable of operating with any other remote data gathering system, regardless of protocol, such as a standard Supervisory Control And Data...
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5801644 |
Apparatus for measurement of torque on a rotating shaft
Apparatus for measuring the horsepower transmitted by the drive shaft of an automotive vehicle, by determining the torque on the shaft through the measurement of the resistance of an included...
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5796250 |
Plural rotary member position encoder having electromagnetically coupled resonant frequency multiplexed outputs for respectively associated rotatable members
An apparatus for indicating the angular position of a rotatable member includes a drive coil with its axis corresponding to the axis of rotation of the rotatable member. A coil is wound around the...
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5774068 |
Absolute signal detecting method and absolute encoder
A code plate has an m-bit signal track read out in parallel for providing the starting position of an AC servo motor for commencing rotation when power is first turned ON. An n-bit signal track...
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5767792 |
Method for calibrating a temperature sensing transponder
A method of calibrating a characteristic sensor of a transponder having a memory characteristic of a host including the steps of placing a transponder in a liquid bath having a known temperature,...
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5740080 |
Apparatus for measuring and transmitting process conditions
An industrial mobile process monitoring system is described which provides a means by which a measurable atmospheric condition, such as temperature, can be measured in real time at a plurality of...
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5724030 |
System monitoring reprogrammable implantable transponder
A passive transponder including an antenna for receiving an input signal and transmitting an output and a memory for storing the data received by the transponder from an interrogator. The...
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5712563 |
Steering torque sensor utilizing a displacement detector having a pulse power supply
A displacement detector for enabling a precise detection of a displaced quantity of the core. The displacement detector is provided with a displaceable core, a detecting coil the inductance of...
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