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Class 340/870.04 - With calibration


Subclass of Class 340 - Communications: electrical
Definition: Subject matter wherein the telemetering system has means
No. of patents: 88
Last issue date: 01/06/2009


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NumberTitleIssue Date
7474230RFID temperature logger incorporating a frequency ratio digitizing temperature sensor
A semi-passive radio frequency identification (RFID) tag being coupled to a battery providing a battery voltage for powering a part of the circuitry of the RFID tag includes an RF communication block receiving and transmitting RF signals, a sensor block including a ...
01/06/2009
7359809Electricity metering with a current transformer
The data storage and processing resources required for an electric meter are reduced by basing the selection and application of phase error correction on a root mean square load current flowing through the meter. ...
04/15/2008
7325459Identifying unit for working machine and pressure apparatus
A working machines includes an identifying unit. A force sensor detachably supports a working head in the identifying unit. A controller circuit is designed to identify the working head based on the load detected at the force sensor. When the working head is replace...
02/05/2008
7313498Device and method for testing an electrical circuit
A method and device for testing an electrical circuit, which do not require a thorough electrical circuit simulation but reliably identifying circuit faults. Preferred embodiments generate a fault signal that indicates that a given state of the circuit, which is def...
12/25/2007
7228249Methods and apparatus for determining the condition of a sensor and identifying the failure thereof
Methods and apparatus are provided which generate an error signal if a sensor is either anticipated to fail or fails. At least two sensors provide input signals having magnitudes that approximately correspond to a sensed event. A processor calculates an actual corre...
06/05/2007
7204123Accuracy enhancement of a sensor during an anomalous event
A method for enhancing the accuracy of a sensor is provided. The method includes determining a measure of the output of the sensor, determining whether the measure falls outside of an acceptable range for the output of the sensor, and, when the measure falls outside...
04/17/2007
7171336Method for operating a measuring instrument
A method for operating a measuring instrument is capable of performing multiple diagnostic functions. For this, a process control is provided for the execution of the diagnostic functions in a manner whereby the normal measuring operation of the measuring instrument...
01/30/2007
7164355Process transmitter with a plurality of operating modes
A transmitter for measuring a process variable of an industrial process includes a sensor adapted to measure the process variable and to generate a sensor output. A mode selector is adapted to select between operational modes. At least one operational mode is relate...
01/16/2007
7130752Measuring-instrument remote-calibration system and measuring-instrument remote-calibration method
In a measuring-instrument remote-calibration system and measuring-instrument remote-calibration method, a measuring standard quantity is converted into a parameter adapted for communication, or based on measuring standard quantity, a parameter adapted for communicat...
10/31/2006
7113179Force sensing resistor with calibration element and method of manufacturing same
A force sensing resistor includes two substrates. Conductive traces including first, common, and calibration fingers are on the first substrate and define a contact area. A spacer surrounds the contact area and attaches the substrates together such that a cavity sep...
09/26/2006
7112972Gauge calibration
A method of calibrating a gauge in particular for the measurement of film thickness, uses a calibration variable to compensate for short term changes in probe tip condition, instead of a constant value. A calibration constant is based only on the dielectric constant...
09/26/2006
7109728Probe based information storage for probes used for opens detection in in-circuit testing
Disclosed is a novel electrical probe that stores probe-specific information. A probe implemented in accordance with the invention includes a processor, memory, and a communications interface. Probe-specific information such as a probe identifier and/or calibration ...
09/19/2006
7102534Apparatus for measuring piston temperature
An apparatus measures temperature of a reciprocating piston and comprises one or more thermocouples of which one end is inserted to a predetermined point of the piston and generates a potential difference according to temperature of the predetermined point. A teleme...
09/05/2006
7084647Transmitter
A transmitter having an improved current output is provided, having: a sensor (1), which serves to register a physical quantity (X) and to convert such to an electrical quantity; electronics, which converts the electrical quantity into a measurement signal an...
08/01/2006
7079962Automated utility meter reading system with variable bandwidth receiver
Methods and apparatus are disclosed for Automated Meter Reading (AMR) systems for determining quantities of a consumed utility product including electric, gas, and water service, using wireless data transfer. To compensate for the frequency drifts of the transmitter...
07/18/2006
7031865Universal sensor adapter
A sensor assembly. The sensor assembly includes a transducer, a memory element to store a plurality of transducer signatures, and a processor to identify the transducer using the transducer signatures, to process the environmental characteristic using the identified...
04/18/2006
7016792Transducer comprising a connected data memory
The invention relates to a transducer (4) and a method for determining measuring values and for exchanging data between an evaluation device and the transducer which are connected by at least two connecting lines (2B, 2A; 11, 12). Data wh...
03/21/2006
7017083Method and device for testing the inhibit function of a network component transmission inhibiting device
A method and a device are described for testing the inhibit function of a network component transmission inhibiting device that allows a transmission line from the network component to the network to be inhibited by an inhibit function which causes a logical signal ...
03/21/2006
7009491Dual purpose vehicle key fob for training tire pressure sensors
A dual purpose key fob has manipulable keys for, in a normal mode, locking and unlocking a vehicle and keys for opening a vehicle trunk and activating a panic alarm and, in a training mode, for sending code signals to tire pressure sensors to tell the sensors what t...
03/07/2006
6997606Threshold temperature sensor comprising room temperature test means
An integrated temperature sensor delivers threshold detection signals when temperature thresholds have been exceeded. The temperature sensor includes a circuit for detecting a first temperature threshold having a first detection threshold, and for detecting a second...
02/14/2006
6988043External transformer correction in an electricity meter
A method compensates for measurement errors of an external transformer coupled between an electricity meter and one or more power lines. The method includes a first step of obtaining at least one error rating for the external transformer. The method also includes th...
01/17/2006
6925413Method and system for detecting a spatial movement state of moving objects
A method and a system for detecting the spatial movement state of moving objects, e.g., vehicles. Due to a, for example, non-cartesian arrangement of four rotational rate sensors and/or acceleration sensors, it is also possible to obtain a redundant signal in additi...
08/02/2005
6910804Resistive temperature device (RTD) module with improved noise immunity
An RTD system includes multiple pluralities of RTDs and RTD bank assembly to which each plurality of RTDs are connected. Each RTD bank assembly includes a current source for the RTDs connected thereto, a multiplexer switching system for switching the current source ...
06/28/2005
6781521Filters for canceling multiple noise sources in borehole electromagnetic telemetry system
An electromagnetic borehole telemetry system providing improved signal to noise ratio. Adaptive filters use noise channels as references to remove noise from the signal channel. Multiple noise channels are coupled to series connected adaptive filters for removing ea...
08/24/2004
6664900Programmable transducer device
A programmable transducer device that includes a signal source (e.g., a sensor) and a transducer output to output a transducer output signal and to receive a control signal from an external control unit. The control signal is superposed on the transducer ...
12/16/2003
6647351Method of detecting the position of an inner surface of a workpiece on a machine tool, and machine tool implementing such a method
The position of the inner surface of a hollow metal workpiece on a machine tool is detected by connecting an operating member of the machine, preferably a tool, to a first terminal of an electric power source; connecting the inner surface to a second term...
11/11/2003
6163276System for remote data collection
A remote data collection system for collecting usage data from an endpoint includes a monitoring module coupled to the endpoint, the monitoring module having a wireless transmitter to transmit the usage data. The system also includes a receiver to receive...
12/19/2000
6121890Electronic indicator with adjustable ratio of spindle displacement to displayed value
An electronic indicator that includes a means for a scaling the actual displacement of the spindle by a user-adjustable scale factor representing the ratio of the actual displacement of a spindle to the value displayed. The indicator includes a body, tran...
09/19/2000
6087934Velocity-discriminating cable motion transducer system
A system for monitoring motion includes a cable-encoder combination to create an electrical signal indicating distance and a microprocessor monitoring system to provide time measurement in conjunction with distance information and to provide alarms whenev...
07/11/2000
6025787Apparatus and methods for measurement system calibration
Apparatus and methods for calibrating a transducer measurement system having a plurality of subsystems, permitting total system calibration by a few selected adjustments without requiring complete system calibration when a new subsystem is added or a subs...
02/15/2000
5801645Automatic paired LVDT probe balancing
The apparatus and method of the present invention overcome the difficulties of balancing paired LVDT probes via provision of a quick and inexpensive process that can be implemented in either hardware or software. In particular, a software method is provid...
09/01/1998
5777562Centering device and method for centering
A centering device and method includes a sensor for sensing the center of a bore preformed in a workpiece, and a remote output unit for outputting the positional signal generated by the sensor. The sensor in held within a spindle of a machine tool and inc...
07/07/1998
5767792Method 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, measuring the value of the bath with the transponder, outpu...
06/16/1998
5719564Utility meter reading system
A method for communicating utility usage-related information from a plurality of meter modules to a plurality of data accumulator units, each of which periodically transmits data to a control computer, including the steps of periodically transmitting from...
02/17/1998
5673278Method and apparatus for introducing diagnostic pulses into an analog signal generated by an instrument
A method and apparatus for notifying a receiving device of fault conditions in a sensing element or an instrument. The instrument generates an analog signal that has an amplitude which is representative of a variable. The analog signal amplitude has a ran...
09/30/1997
5621398Programmable switch
A programmable switch includes a housing. A sensor is associated with the housing. The sensor senses a measurable physical property of a sensed element proximate the housing and developing an electrical signal varying relative thereto to represent the sen...
04/15/1997
5557267Apparatus and methods for measurement system calibration
Apparatus and methods for calibrating a transducer measurement system having a plurality of subsystems, permitting total system calibration by a few selected adjustments without requiring complete system calibration when a new subsystem is added or a subs...
09/17/1996
5546079Output circuit arrangement integrated in an integrated electric circuit for supplying an output signal determined by user selectable parameters
An output circuit in which both the signal type (i.e., current or voltage) as well as the signal level range (for example, 0 to 10 V, -10 V to +10 V) are based on user input parameters. The circuit is integrated in an application-specific integrated circu...
08/13/1996
5519388Method and apparatus for active temperature compensation in a radiowave transmitter
A method and apparatus for producing a temperature stabilized frequency from a signal generator in a monitoring station is described. The signal generator monitors the voltage response of an RC circuit where the resistive portion is formed by a thermistor...
05/21/1996
5515040Methods of self-calibration for a key-type mouse
This invention relates to methods of self-calibration for computer display cursor positioning devices imbedded within a computer keyboard key (sometimes referred to herein as a "key-type mouse") or other pointing device. A plurality of Force Sensitive Res...
05/07/1996
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