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7330662 |
System and method for remote optical digital networking of computing devices
The extended range of optical data communication is enabled through the use of intermediary relay stations spaced fairly far apart. IRDA communicatiOn, as is well known, uses very short duration...
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7302366 |
Measuring instrument
A measuring instrument, in particular a flow or level meter, includes a base module for the acquisition and processing of measured data and an add-on module. Both the base module and the add-on...
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7135986 |
Meter register having an encoder for measuring material flow and an algorithm to selectively block signal transmission
A water meter has a meter register having an encoder having electromagnetic wave emitters, e.g., infrared emitters to measure water flow and direction of water flow through the meter. The encoder...
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7042368 |
Automated meter reader device having optical sensor with automatic gain control
The present invention achieves technical advantages as an AMR device and method of use having an optical transceiver adapted to read analog meter faces. The transceiver advantageously includes an...
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6828919 |
Exciter assembly telemetry
An exciter assembly supplies current to a superconducting load. The exciter assembly includes a transformer for generating the current and an optical emitter and an optical receiver. The...
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6617978 |
Electricity meter
A meter for measuring electricity usage for a given load includes a housing and two light sources disposed in the housing and configured to output light at a predetermined frequency. Two light...
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6369719 |
Apparatus and method for collecting and transmitting utility meter data and other information via a wireless network
A system for remotely monitoring and transmitting data and other information received from utility and other devices is disclosed. The universal meter reader of the present invention includes a...
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6313756 |
Method for controlling an electric meter, and electric meter
A method for controlling an electric meter, on which a module can be mounted. The module cooperates with a basic counting mechanism in the electric meter through a bidirectional optical...
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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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5767790 |
Automatic utility meter monitor
A self-contained automated meter reader system for monitoring a plurality of channels for gas, electricity and water utilities, has additional channels dedicated to normally closed alarm signals...
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5641030 |
Powered tracked vehicle suitable for carriages for the disabled
The powered tracked vehicle is equipped with photocells (13, 45) which monitor its backward and forward movements and automatically modify their orientation according to whether the vehicle is...
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5519389 |
Signal synchronized digital frequency discriminator
A digital frequency discriminator processes input pulses including first and second time separated input pulses to determine if the frequency of any two sequential pulses lie within a predetermined...
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5442332 |
Vehicle interface system and method
A self-contained portable interface system (10) coordinates vehicle light response on separate vehicles. A power interface (13) plugs into a cigarette lighter (14) on the first vehicle (16). A turn...
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5371496 |
Two-part sensor with transformer power coupling and optical signal coupling
A two-part sensor includes a power source/signal receiver and a signal generator which are physically spaced and disconnected from one another. The power source/signal receiver is encased within...
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5331319 |
Device for signalling the position of a mobile member
A device for signalling remotely the state of a device able to assume a plurality of discrete states comprises a circuit for producing inside a screened enclosure a direct current voltage free of...
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5270684 |
Oil consumption counter
An improved electronic measuring system which not only determines the amount of fuel oil consumed by a home, office, or factory heating system, but also detects leaks in underground fuel storage...
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5241306 |
System and method for introducing meter sensor hysteresis
A method and system for accurate remote reading of an electricity meter including an optical detection arrangement, including a light emitter and sensor, have positioned in the light path...
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5233355 |
Position transducer
An absolute position transducer (encoder) comprising an incremental encoder having a coded disk connected stably to a shaft, and connected to a sensor for emitting a signal for each complete turn...
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5214587 |
Device for monitoring utility usage
A device (10) for monitoring utility usage comprising a meter sensor assembly (16) attached to a utility meter (14) and a customer interface unit (20) placed inside a building (12). Sensor signals...
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5211539 |
Apparatus for indicating the pitch of turbofan blades
Apparatus indicates changes in blade pitch of variable pitch blades by detecting relative displacements of first and second members of a blade pitch actuator. The members are selectively displaced...
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5196844 |
Method and apparatus for detecting reference rotational angle for each cylinder in multiple-cylinder internal combustion engine
Disclosed is an apparatus for detecting the reference rotational angle for each cylinder in a multiple-cylinder internal combustion engine, in which a reference pulse signal is output at a position...
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5191328 |
Trailer hitching aid and method using reception delay of different velocity signals
A trailer hitching aid includes a dual transmitter mounted on the forward end of a trailer or other vehicle to be towed and arranged to transmit pulses of infrared light and pulses of ultrasonic...
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5181026 |
Power transmission line monitoring system
An Electric Power Line Monitoring System in which a single line measuring system station can measure all of the power parameters of both voltage and phase angle plus ambient and line temperatures....
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5093625 |
Electrostatic spray gun voltage and current monitor with remote readout
A device and method of determining the voltage and current existing at the electrostatic electrode in a electrostatic spray gun, the spray gun containing a self-contained power supply including a...
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5019814 |
Wireless data coupling system and method
A wireless data coupling system for transmitting data such as torque from a rotating shaft to a stationary receiver includes at least one photocell on the shaft along with a corresponding...
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H000911 |
Fiber optic link for detecting mechanical vibration in the presence of an electromagnetic field
An apparatus for detecting mechanical vibration in the presence of an electromagnetic pulse, which is of particular use in the testing of land mines. An optical fiber link is provided between the...
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4998294 |
Opto-electrical power transmission and control system
A lase diode light source (21) is arranged to emit light of a desired intensity (I1), which is transmitted via an optical conductor (22). Light exiting the fiber has an intensity (I2), and falls...
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4962495 |
Apparatus and method for transmitting condition data from a rotating member to a stationary device
Apparatus and method for transmitting condition data from a rotating member to a stationary device is disclosed wherein digitized data obtained from a plurality of sensors is transmitted from the...
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4958904 |
Optical slip ring
An optical slip ring assembly involving a small diameter transmitter accurately spaced with respect to a plurality of detectors arranged in a predetermined pattern operates to transmit a signal...
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4955238 |
Optical sensor
An optical sensor uses a torsion-mounted thin silicon paddle (1) with magnetically soft material on its back. A light beam falls on the front face and part of the beam is reflected to a photo-diode...
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4879760 |
Optical fiber transmissive signal modulation system
The device of the present invention provides a signal modulation system. The system has a first station communicatively connected to at least first and second optical fibers. The first station has...
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4792677 |
System for use with a utility meter for recording time of energy use
A system for use with standard electric meters having a rotatable disc for recording time of energy use. The system includes a housing securable within a meter below the disc. The system also...
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4757313 |
Positioning and abnormality control device
A positioning control device wherein an abnormality in a position detector is judged only by use of two position signals having differing phases emitted from the position detector for effecting...
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4751605 |
Reader for a digital trip device associated with a current breaking device
The present invention relates to a display device for a digital trip device associated with a current breaking device. The trip device comprises apparatus for entering operating parameters and...
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4686530 |
Cable transmission of signals
A light conductor has two sealed embedding elements molded to its ends, respectively containing a light emitter and a light receiver. The light emitter is connected to a likewise embedded Wiegand...
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4683472 |
Signal reading system such as for remote reading of meters
In the disclosed system, recurring signals, such as from a watt-hour meter or other type of meter, are registered, by sensing the signals, converting the signals to mechanical motions, and applying...
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4680704 |
Optical sensor apparatus and method for remotely monitoring a utility meter or the like
The present invention relates to an optical sensor apparatus (21) for remotely monitoring a utility meter or the like. The optical sensor apparatus (21) includes optically sensitive detector, in...
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4673875 |
Apparatus including contact free transfer of signals for measuring the gap between relatively rotating refiner discs
Apparatus for measuring the gap between pairs of relatively rotating refiner discs is disclosed, including a transmitter incorporated into the face of a rotating refiner disc for producing a...
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4670750 |
Photoelectric impulse transmitter
Measured values are converted into electrical impulses for gauge devices and the like in a mechanism including a plurality of photocells arranged on a generally circular arc with a rotatable disc...
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4660036 |
Amplified motion encoder
A single turn absolute position encoder is disclosed capable of being manufactured in extremely small size while maintaining high resolution. An indented version having a discrete position output...
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4654660 |
Optical telemetric transceiver
An optical telemetric system for use in seismic exploration consists generally of a recorder, a plurality of transceivers, and a like number of cable sections interconnecting each transceiver in...
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4648710 |
Blind guide device
Blind guide device is disclosed. The device comprises a light-emitting element, a first electric circuit for generating an electric pulse and causing pulsating-conduction of the light-emitting...
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4646086 |
Arrangement for data transmission between two mutually rotatable parts
The invention relates to arrangement for data transmission between two mutually rotatable parts, in particular for computer tomographs, in which the signal can travel along two separate paths from...
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4642634 |
Optical encoder
An optical encoder is retrofitted on an existing electric kilowatt utility meter for providing a host of data collection and processing functions performed at the meter site. The encoder permits...
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4639129 |
Method of measuring distance between two observation points
The present invention relates to a telemeter and to a method of determining the distance separating two points. The method comprises the steps consisting in (a) comparing the phase (φ) of the ...
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4636637 |
Method and apparatus for detecting motion through a transparent enclosure, with spurious information detecting and compensating means
An electro-optical encoder is disclosed of the type used for reading utility meters. The encoder includes at least one light source for directing light onto the edge of the rotating disk of the...
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4631539 |
Digital pointer position detector
A mechanical dial indicating gauge or meter that, without mechanical loading, optoelectronically detects and encodes the pointer position as a digital signal by use of a technique of distributed...
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4605925 |
Infra-red telemetry system
An infra-red telemetry system for transmitting information between a rotating shaft of a dynamoelectric machine and an adjacent stationary location includes a plurality of sources of infra-red...
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4551715 |
Tachometer and rotor identification apparatus for centrifuges
An apparatus for determining the actual speed and maximum safe speed of a centrifuge rotor. A single circular array of equally spaced coding elements of two clearly distinguishable types is...
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4536762 |
Matrix encoder for sensor arrays
A meter dial register encoder employs a plurality of photoresistor sensors in a row and column matrix configuration. A microcomputer selectively scans the photoresistors to determine whether they...
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