Plural Ranges, Scales Or Registration Rates Patents (Class 324/115)
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Publication number: 20090128124Abstract: A digital multimeter provides information regarding measurements shown on a display of the multimeter, and available functions of the multimeter. The information typically relates to a current context of the multimeter. The context may include a current mode or other setting of the multimeter.Type: ApplicationFiled: August 14, 2008Publication date: May 21, 2009Applicant: FLUKE CORPORATIONInventors: Anthony GARLAND, Joseph Ferrante, Christopher Gloger
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Publication number: 20090128126Abstract: A digital multimeter comprises a rotary switch and a rotary switch memory. The rotary switch can be moved between a plurality of positions to change the function performed by the digital multimeter. When the rotary switch is in a particular position, a user can change the function currently associated with that position from a default function to a non-default function. Thereafter, when the user moves the rotary switch away from the particular and then subsequently moves the position back to the particular position, the multimeter resumes the non-default function without requiring further user-input.Type: ApplicationFiled: August 14, 2008Publication date: May 21, 2009Applicant: FLUKE CORPORATIONInventors: Anthony GARLAND, Jeffrey Meyer, Bradey Honsinger, Joseph Ferrante, Brian Capoccia, Lindsey Berdan
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Publication number: 20090128128Abstract: A digital multimeter includes an auto-save component configured to automatically capture and save a sequence of measurements. The auto-save component detects when a measurement becomes stable and upon determining that the measurement has become stable, captures and saves the measurement in a memory of the digital multimeter. The multimeter may additionally include an auto-naming component for automatically assigning a name to each measurement in the sequence, and an auto-hold component for temporarily freezing the display of the stable measurements in the multimeter.Type: ApplicationFiled: August 14, 2008Publication date: May 21, 2009Applicant: FLUKE CORPORATIONInventors: Anthony GARLAND, Bradey Honsinger, Joseph Ferrante, Christopher Gloger
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Publication number: 20090128125Abstract: A digital multimeter displays a miniature version of a live actual reading of the multimeter. The miniature version typically appears after a larger version of the live actual reading is displaced by other display elements. The miniature version of the live actual reading may be accompanied by a warning icon or other graphical symbol to alert a user of a potentially hazardous electrical condition.Type: ApplicationFiled: August 14, 2008Publication date: May 21, 2009Applicant: FLUKE CORPORATIONInventors: Anthony GARLAND, Joseph Ferrante, Brian Capoccia, Lindsey Berdan
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Publication number: 20090128127Abstract: A digital multimeter stores multiple sequential measurements of physical or electrical parameters. Each of the sequential measurements has a name including an automatically generated descriptor. The descriptor for each sequential measurement may indicate a relative position of the measurement within the sequence. For instance, the descriptor may indicate whether the measurement was obtained before or after other measurements in the sequence.Type: ApplicationFiled: August 14, 2008Publication date: May 21, 2009Applicant: FLUKE CORPORATIONInventors: Anthony C. GARLAND, Jeffrey Meyer, Bradey Honsinger, Joseph Ferrante, John Gilbert
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Publication number: 20090125259Abstract: Apparatus and methods are provided to allow multiple, possibly overlapping, regions of interest within a frequency spectrum to be defined, and managed. Each of these regions of interest may be selected for further testing or identification. Unselected regions are allowed to collapse into narrow bars so as not to interfere with the selected region. Multiple rows are provided to allow for the definition and selection of overlapping regions of interest. Furthermore, in some embodiments aid is provided for identifying the signal type by providing a list of signal type candidates based upon such parameters as region of interest bandwidth, region of interest center frequency and geographic location.Type: ApplicationFiled: July 16, 2008Publication date: May 14, 2009Applicant: TEKTRONIX, INC.Inventors: RICHARD B. NICHOLLS, JOHN F. SHORT, III, WALTER R. STRAND, LYNNE A. FITZSIMMONS, DAVID W. SCHMIDT, RONALD J. LARRICK
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Publication number: 20090115398Abstract: The invention relates to a method and a device for measuring a first voltage and a second voltage by means of a differential voltmeter. The differential voltmeter comprises a first inlet and a second inlet and a known voltage potential is applied to the second inlet. The voltage measurement comprises the following; a first voltage is applied to a first inlet of the differential voltmeter, a first differential voltage is measured, the first voltage from the measured first differential voltmeter and the known voltage potential is determined, the second voltage is applied to the second inlet of the differential voltmeter, a second differential voltage is measured, and the second voltage from the measured second differential voltage and the previously determined first voltage is determined.Type: ApplicationFiled: March 12, 2007Publication date: May 7, 2009Inventor: Wolfgang Meid
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Publication number: 20090045799Abstract: A digital multimeter having improved recording functionality is disclosed. The digital multimeter disclosed incorporates a rotary switch, a series of keys and buttons, and a digital display so as to provide highly integrated, programmable and configurable features. Several of these features, either taken alone or in combination, provide significant improvements in ease of use, speed of user operation, and safety associated with use of the instrument.Type: ApplicationFiled: August 14, 2007Publication date: February 19, 2009Applicant: FLUKE CORPORATIONInventors: Anthony C. GARLAND, Bradey David Honsinger, Jeffrey William Meyer, Joseph Victor Ferrante, John Michael Gilbert, Christopher Paul Gloger, Mathew James Martineau, Nathaniel Jeremiah Wetzel, Brian Michael Capoccia
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Publication number: 20090045800Abstract: A digital multimeter with a rotary switch having a plurality of positions, each of the positions corresponding to a primary measurement function to be performed. An LCD displays secondary functions or modes corresponding to the positions of the rotary switch and values determined by performing one of the measurement functions. The multimeter includes default functions for each position of the rotary switch that may be changed to other functions or modes. When the other functions or modes are set in a first position, the rotary switch is moved to a second position, and returned to the first position the multimeter restores the functions and/or modes set when the rotary switch was previously in the first position.Type: ApplicationFiled: August 14, 2007Publication date: February 19, 2009Applicant: FLUKE CORPORATIONInventors: Anthony C. GARLAND, Joseph Victor FERRANTE, Brian Michael CAPOCCIA, Lindsey BERDAN, Bradey David HONSINGER, Jeffrey William MEYER
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Publication number: 20090016164Abstract: A method for measuring a distance of an object with a distance measuring unit, the method including: sending a first signal from the distance measuring unit toward the object; receiving a second signal from the object; and measuring the second signal via the distance measuring unit; wherein the distance measuring unit is enclosed within an electronic meter that is attachable to a fuel heating tank, the electronic meter used for tracking, verifying, and recording one or more variables.Type: ApplicationFiled: July 10, 2007Publication date: January 15, 2009Inventor: Constantinos Dionysiou
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Patent number: 7477998Abstract: A system and method for providing an additional option function to existing functionality of a meter device configured for measuring parameters of energy is provided. The meter device is coupled with an option device for exchanging data between the meter and the option devices along at least one data path, including exchanging initialization data provided by the option device between the meter device and the option device, wherein the initialization data is useable by the meter device for configuring the meter device to be in condition to operate with the option device. The data exchanged between the meter device and the option devices are processed by at least one processor. Upon the coupling of the devices and the exchanging of the initialization data, the meter device is operated with the option device for adding the option function to existing functionality of the meter device.Type: GrantFiled: February 1, 2007Date of Patent: January 13, 2009Assignee: Electro Industries/Gauge TechInventor: Erran Kagan
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Publication number: 20090012728Abstract: Systems and methods are provided for use in an IED that perform high resolution waveform capture to generate multi-rate waveform data in real-time. In one embodiment, high-resolution sampled data is dynamically pre-ordered into separate high resolution and low resolution data streams for presentation and storage. This pre-ordering of data is optimized so as to minimize the amount of data manipulation required to prepare the sampled data for eventual presentation and storage in the IED. Pre-ordering of data facilitates minimum performance impact so that continuous real-time data capture can be achieved.Type: ApplicationFiled: September 16, 2008Publication date: January 8, 2009Applicant: Electro Industries/Gauge Tech.Inventors: Joseph Spanier, Hai Zhu, Frederick B. Slota
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Patent number: 7468602Abstract: A digital multi-meter (DMM) is described which can be inserted into a peripheral device card expansion slot of a personal digital assistant (PDA) to provide the PDA with DMM functionality. The DMM is configurable by configuration data supplied by application software running on the PDA. Configuration of the DMM may include, for example, setting measurement function and input ranges. The DMM internal circuitry measures input signals, digitizes them and supplies them to the PDA for display and/or storage. This allows for a data acquisition unit which combines a DMM with the computing power of a PDA. The PDA may be programmed to display or store data in a multitude of ways, depending on the requirements of a particular application. The combined DMM and PDA may benefit from various other functions of the PDA, for example wireless communication of data to allow remote data logging.Type: GrantFiled: August 13, 2004Date of Patent: December 23, 2008Assignee: Elan Digital Systems LimitedInventors: Peter T. Sleeman, Kevin M. Easter
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Patent number: 7459900Abstract: A modular current sensing system for a servo control system that includes a magnetic core with an open center portion and a connection plate that includes at least three wire connectors, wherein the wire connectors are capable of connecting at least two wires electrically in series. The system also includes a plurality of wires, including a first wire with a first end and a second end, wherein the first end of the first wire is electrically connected to a first power source, and the second end of the first wire is connected to the connection plate at the first wire connector and wherein the first wire passes through the open portion defined by the magnetic core at least once. A first motor current flowing through the first wire induces a core current to flow in the magnetic core, causing the magnetic core to emit a magnetic field. A Hall effect sensor detects the magnetic field, produces an output current, and delivers the output current to a control device within a servo control system.Type: GrantFiled: February 5, 2007Date of Patent: December 2, 2008Assignee: BAE Systems Land & Armaments L.P.Inventors: Timothy M. Grupa, Lane L. Woodland, Stephen M. Stocker, Martin J. Sukup, Bret C. Bartness, David J. Badzinski, Jeffrey W. Shoemaker, Keith A. Walters
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Patent number: 7439725Abstract: A multimeter has a housing with at least three input connections, configured as female connectors, for connecting to two measurement lines. When a measurement variable is changed, it is possible to connect at least one of the measurement lines to another input connection. The multimeter has a measurement-range switch which can be moved to a switching position associated with the selected measurement variables, and a mechanical blocking apparatus coupled to the switch. The blocking apparatus allows specific input connections to be blocked such that contact can be made only with the input connections which have an associated measurement variable which corresponds to the measurement variable set by the switch. The blocking apparatus is formed as a pivotable angle lever, and the switch moves end regions of strip-shaped angle limbs of the angle lever to a position aligned with the input connections to be blocked.Type: GrantFiled: December 26, 2006Date of Patent: October 21, 2008Assignee: GMC-I Gossen- Metrawatt GmbHInventors: Günter Fischer, Dietmar Koops
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Publication number: 20080164865Abstract: A display system for an automotive vehicle indicates a state of the vehicle by the position of an indicator bar. The indicator bar moves as the state of the vehicle changes.Type: ApplicationFiled: January 5, 2007Publication date: July 10, 2008Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Kris Tomasson, Brian White
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Publication number: 20080116879Abstract: A voltage measuring device includes at least two voltage dividing circuits, an analog to digital converter, and a processor. Each voltage dividing circuit is configured for dividing a voltage output by a direct current power supply. The analog to digital converter is configured for converting the divided voltage to a digital signal. The processor is configured for processing the digital signal and selecting one of the at least two voltage dividing circuits, to divide the voltage according to the processed digital signal.Type: ApplicationFiled: July 16, 2007Publication date: May 22, 2008Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: MING-CHIH HSIEH
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Patent number: 7342393Abstract: A multimeter with a filtered measurement mode. By pressing a single button or key, a low-pass filter is switched into the signal path to filter voltage spikes, noise, and switching transients from pulse-width modulated pulses, or lower frequency sinusoidal signals with higher frequency components, and at the same time an on-screen icon indicates to a user that the filtered mode has been selected. The user can switch back and forth between filtered and unfiltered modes. The filtered measurement mode is useful in measuring the outputs of modern adjustable-speed motor drives, uninterruptible power sources, and switch power supplies.Type: GrantFiled: February 14, 2006Date of Patent: March 11, 2008Assignee: Fluke CorporationInventor: Charles B Newcombe
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Patent number: 7339367Abstract: An interface module. The interface module includes a probe identification module configured for connection to an identification bus, a probe detect module configured for connection to a detect-control bus, a power control module configured for connection to the detect-control bus, a control and data module configured for connection to a control-data bus, and multiple connectors. Each connector has an associated hot swap circuit. For each connector, if the probe detect module detects connection of that connector to a test probe via connection of that connector to the probe detect module, the probe identification module is configured to enable transfer of an identification label identifying that test probe to that test probe via that connector and the control and data module is configured to enable transfer of control instructions and data between the control-data bus and the test probe via connection of the control and data module to that connector.Type: GrantFiled: April 28, 2006Date of Patent: March 4, 2008Assignee: Agilent Technologies, Inc.Inventors: Dion N. Heisler, Nimal K. K. Gamage
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Patent number: 7336065Abstract: Systems and methods are disclosed for accurately measuring delivered or supplied electrical energy over an extended range of values. In one embodiment, a meter for monitoring the energy at a remote site includes a current sensor for measuring the current supplied to or from the site, and a microprocessor that generates output readings with an enhanced accuracy over a wide range of outputs in response to digital samples received from the sensor. In a one implementation, the meter is configured to provide readings with an accuracy that satisfies the standards IEC 60687 1A 0.5S, IEC 60687 5A 0.5S, ANSI C12.20 Class 20 0.5, and ANSI C12.20 Class 2/10 0.5. In another implementation, the meter is configured to provide readings with an accuracy that satisfies the standards IEC 60687 1A 0.2S, IEC 60687 5A 0.2S, ANSI C12.20 Class 20 0.2, and ANSI C12.20 Class 2/10 0.2.Type: GrantFiled: January 13, 2003Date of Patent: February 26, 2008Assignee: Power Measurement Ltd.Inventors: Geoffrey T. Hyatt, Stewart J. Harding, Bernard C. Mansey
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Patent number: 7332903Abstract: A device is provided for measuring a current flowing in an electrical conductor with a magnetic circuit for coupling to the electrical conductor. The magnetic circuit has an air gap, and a magnetic field sensitive component is disposed in the air gap. The magnetic field sensitive component measures the magnetic field generated by the electrical conductor. Two control cores are disposed in the air gap to control an effective size of the air gap. The control cores each have a control winding for magnetic saturation of the respective control core to control the effective length of the air gap. The magnetic field sensitive component is disposed between the control cores.Type: GrantFiled: August 25, 2006Date of Patent: February 19, 2008Assignee: Lisa Dräxlmaier GmbHInventors: Christian Hausperger, Edgar Kindler
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Patent number: 7312602Abstract: An electrical meter 10 comprises a housing 12 with a spool 14 rotatably mounted therein. A first lead cable 16 and a second lead cable 18 are wound upon the spool 14. A wound spring 90 is connected to the spool and biases the spool against rotation in a direction that allows the lead cables to be unwound. A first head 20 and a second head 22 are respectively included on the end of the first lead cable 16 and the second lead cable 18. The heads abut against the housing and prevent the lead cables from being completely wound upon the spool when the meter is not in use. A circuit board 30 with electrical measurement circuitry is also mounted within the housing 12. The circuit board is electrically connected to a display 40 positioned on the outside of the housing 12.Type: GrantFiled: July 23, 2004Date of Patent: December 25, 2007Inventor: Paul Hoopengarner
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Patent number: 7276893Abstract: A range-changing circuit includes an array of graduated impedances in serial relationship, and a voltage sensing and limiting switch across one of said impedances. The switch limits the voltage across said one of the impedances in response to a voltage sensed by the switch.Type: GrantFiled: February 28, 2005Date of Patent: October 2, 2007Assignee: Keithley Instruments, Inc.Inventors: John G. Banaska, Wayne C. Goeke
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Patent number: 7180309Abstract: A basic electronic unit, an integrated electronic system, and the associated software program for coupled multielectrode electrochemical devices or sensors. The basic electronic unit uses different values of resistors for coupling the multiple electrodes in an electrochemical device or a sensor, so that the effective value of the coupling resistance can be dynamically changed according to the magnitude of the measured coupling current during the measurement. This feature allows the electronic unit to measure a wide range of coupling currents without compromising the principle that the coupled multielectrode electrochemical device simulates the one-piece metal behavior. The integrated electronic system uses several basic electronic units, so that it can simultaneously measure several independent multielectrode electrochemical devices or sensors that have a small number of electrodes, or measure one or more multielectrode devices or sensors that have a large number of electrodes.Type: GrantFiled: May 21, 2005Date of Patent: February 20, 2007Assignee: Corr Instruments, LLC.Inventor: Xiaodong Sun Yang
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Patent number: 7175490Abstract: A boat indicator enables a user to easily read engine speeds for boats which can switch between a low-speed trolling mode and a normal running mode at speeds higher than the trolling mode speed. The boat indicator includes an engine speed indicating section for indicating engine speed. The engine speed indicating section is adapted to switch between a normal mode display for indicating the engine speed over a relatively large range when the boat is in the normal mode and a trolling mode display for indicating engine speed over a relatively small, low-speed range when the boat is in the trolling mode. The normal mode display indicates engine speed detected with a first resolution over the large range. The trolling mode display indicates engine speed detected with a second resolution finer than the first resolution over the smaller range.Type: GrantFiled: October 19, 2004Date of Patent: February 13, 2007Assignee: Yamaha Marine Kabushiki KaishaInventors: Isano Kanno, Masaru Kawanishi
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Patent number: 7164262Abstract: A typical probe comprises a sensor, and a connection head that includes a conversion circuit for driving the sensor. The probe communicates with a controller via a two wire DC 4-20 mA link. The conversion circuit is also known as a two-wire transmitter. The conversion circuit and the sensor are connected to each other (and to the external link) via screw terminals usually located at the circuit top face. The invention provides a conversion circuit and a matching base forming plug and socket type connections. On the converter circuit, the connections are moved from the top of the circuit, to the bottom of the circuit, thus clearing space for an integral display. The sensor and the link wires are attached to the base socket. The conversion circuit fits into the socket in only a single orientation, thus ensuring correct coupling of the wires to the circuit elements.Type: GrantFiled: March 10, 2004Date of Patent: January 16, 2007Inventor: Ely Zacay
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Patent number: 7148674Abstract: A leakage current measurement apparatus for measuring leakage currents is disclosed. The leakage current measurement apparatus automatically selects one of non-inductive shunt resistors of 10?, 100?, and 1000? and measures leakage currents of an outdoor isolation material for an ultra-high voltage. Additionally, the leakage current measurement apparatus is capable of measuring a relatively wide range of leakage currents with a relatively high precision, even at a remote location, as a measurement range is automatically adjusted within measurement ranges preset by a user when leakage currents of an outdoor isolation material change, and being protected against a surge possibly generated by an ultra-high voltage. Also, it can remotely measure in real-time leakage currents of an outdoor isolation material installed at a remote location over Ethernet.Type: GrantFiled: August 30, 2004Date of Patent: December 12, 2006Assignee: Korea Electric Power CorporationInventors: In Hyuk Choi, Dong Il Lee, Jeong Shik Ahn, Gil Jo Jung, Jang Hyun Choi
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Patent number: 7126325Abstract: The present utility model provides a digital multi-meter that can not only; generate warning signal when the test probe is misplugged but also indicate the assigned socket before the probe is plugged in. The multi-meter contains a socket indicating a misplug warning circuit whose micro-control unit is connected with each measurement function switch via its terminals respectively. When any measurement function switch is closed and its corresponding socket is unclosed, the micro-control unit switches on the relevant LED to emit light via connected terminal in order to indicate the assigned docket. On the contrary, the micro-control unit switches off the LED to stop emitting light in order to indicated the proper operation. The multi-meter can indicate not only mis-operation after the probe has been plugged in but also the assigned socket before it so that it decreases the possibility of mis-operation and avoids damage effectively and elongates its working life.Type: GrantFiled: October 29, 2004Date of Patent: October 24, 2006Inventor: Xianhong Zhang
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Patent number: 7109700Abstract: Electronic testing devices such as multimeters, and probes therefor. The probes may have off-device display devices attached thereto. The display devices may be non-detachably attached to the probes. In an aspect, conductive pathways to carry probe signals and display signals may be run in parallel or be integrated and may be coupled with a common port or hole of the electronic testing device. In an aspect, a hinge may be used to attach the display devices to the probes. In an aspect, the display device may be attached to a side of the probe to facilitate viewing of the display by a user.Type: GrantFiled: May 26, 2004Date of Patent: September 19, 2006Inventor: David Fazzina
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Patent number: 7109728Abstract: 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 parameters that affect the true value of a measurement are stored in the probe memory. The probe-specific information may be retrieved by the processor from the probe memory via the communications interface.Type: GrantFiled: February 25, 2003Date of Patent: September 19, 2006Assignee: Agilent Technologies, Inc.Inventors: David T Crook, Curtis A Tesdahl
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Patent number: 7071712Abstract: A method for the automatic identification of sensor sensitivity, according to which resistance of a specific magnitude is allocated to the sensor. The resistance is used to allocate the sensor to a specific sensor group with a predetermined sensitivity range.Type: GrantFiled: March 23, 2002Date of Patent: July 4, 2006Assignee: Priamus System Technology AGInventor: Jürgen Frey
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Patent number: 7072785Abstract: A method and apparatus for processing anomalous trigger event conditions to provide anomalous trigger event rate measurements. The apparatus operates to identify one or more trigger events in at least one input signal IN, determine the number of events during a period of time (e.g. events per second) and provide a visual representation of this determination to a user via a display device. The visual representation may comprise an alphanumeric display, a waveform, a graphic image proximate a waveform and the like.Type: GrantFiled: February 18, 2004Date of Patent: July 4, 2006Assignee: Tektronix, Inc.Inventors: John C. De Lacy, Patrick A. Smith
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Patent number: 7062168Abstract: Multiple stage ranging circuitry for a measuring circuit includes a first ranging circuit that selectively amplifies an input signal by respective amounts according to the magnitude of the input signal thereto, and a second ranging circuit coupled to the output of the first ranging circuit selectively amplifies the output signal from the first ranging circuit by a respective amount according to the magnitude of that output signal to provide a measured output. The multiple stage ranging circuitry increases dynamic range and provides for high speed measurements over that dynamic range.Type: GrantFiled: March 19, 2002Date of Patent: June 13, 2006Assignee: DBM Optics, IncorporatedInventors: Michael Paul Atwell, Michael Paul Minneman, Elwood James Egerton
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Patent number: 7038398Abstract: The present invention relates to methods of creating eye-catching displays by taking advantage of color-changing illumination provided by LED systems disclosed herein. Displays can be made to appear to change color or to move simply by changing the color of the light illuminating them. Also, the use of such light in projected is described. A vending machine, an article of clothing, and a container lit by these LED systems are specifically provided.Type: GrantFiled: December 17, 1998Date of Patent: May 2, 2006Assignee: Color Kinetics, IncorporatedInventors: Ihor Lys, George G. Mueller, Michael K. Blackwell
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Patent number: 7034517Abstract: A multimeter with a filtered measurement mode. By pressing a single button or key, a low-pass filter is switched into the signal path to filter voltage spikes, noise, and switching transients from pulse-width modulated pulses, or lower frequency sinusoidal signals with higher frequency components, and at the same time an on-screen icon indicates to a user that the filtered mode has been selected. The user can switch back and forth between filtered and unfiltered modes. The filtered measurement mode is useful in measuring the outputs of modern adjustable-speed motor drives, uninterruptible power sources, and switch power supplies.Type: GrantFiled: March 15, 2004Date of Patent: April 25, 2006Assignee: Fluke CorporationInventor: Charles B. Newcombe
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Patent number: 6989663Abstract: A calibration system for measurement device is operable to calibrate each channel response to compensate its own gain error for a desired frequency range. The channel modes may include voltage range and a coupling mode. Each channel of the plurality of channels may have a certain number of channel mode combinations, including different voltage ranges and coupling modes. Each channel also may have a different frequency response, and as a result each channel mode combination may require an individual digital filter. As a result, the frequency response of each channel may be characterized and the digital filter may be designed to flatten each channel mode combination. The designed filter coefficients for each of the one or more channels of the plurality of channels may be stored in the measurement device. The filter coefficients may be used by a digital filter in order to compensate each one of the one or more channels on the measurement device.Type: GrantFiled: May 7, 2003Date of Patent: January 24, 2006Assignee: National Instruments CorporationInventor: James Nagle
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Patent number: 6985819Abstract: A digital multimeter adapter for a portable electronic device includes a hardware interface connector and a computer program memory. The memory stores computer program instructions that direct the electronic device to collect data representative of a signal from an external source, analyzing the data to identify a characteristic such as voltage, current, or resistance, and displaying the data in digital format. The user may select one or more of the scales of the display. The adapter also may include a model value database, a collected value database, an application-specific database, and/or a language database.Type: GrantFiled: December 20, 2001Date of Patent: January 10, 2006Assignee: SPX CorporationInventors: Edward E. Lipscomb, Kurt Raichle, Troy Liebl, Scott R. Sebastian, Martin P. Franz
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Patent number: 6975104Abstract: A clamp type digital multimeter has one or more digital displays mounted so as to permit at least one of the displays to be read even when attachment of the clamp jaws about a conductor forces the display into an orientation that renders it inaccessible. The meter either has a single display that can be pivoted to an orientation convenient for viewing, or it has dual displays mounted on separate surfaces of the meter's housing. A protective flap may cover one or both of the displays when it is not needed for viewing.Type: GrantFiled: February 20, 2004Date of Patent: December 13, 2005Assignee: Ideal Industries, Inc.Inventor: James L. Gregorec, Jr.
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Patent number: 6936978Abstract: Methods and apparatus for remotely controlled illumination of liquids in a variety of environments. In one example, remotely controlled multi-color LED-based light sources are employed to achieve a wide range of enhanced lighting effects in liquids. In another example, a pool or spa is illuminated by one or more remotely controlled multicolor light sources that may be employed as individually and independently controllable devices, or coupled together to form a remotely controlled networked lighting system to provide a variety of programmable and/or coordinated color illumination effects in the pool or spa environment.Type: GrantFiled: October 25, 2001Date of Patent: August 30, 2005Assignee: Color Kinetics IncorporatedInventors: Frederick M. Morgan, Ihor A. Lys, George G. Mueller, Kevin J. Dowling, Timothy Holmes, John Warwick
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Patent number: 6841987Abstract: A high speed multiple range measurement system that selects on a sample by sample basis the range having the highest resolution and accuracy for which an overload condition does not exist. A plurality of analog to digital converters sample and convert an analog of a physical quantity, such as voltage, current, temperature, strain etc. to a plurality of digital data steams, each having a full scale range representing a fraction of an expected maximum value of the physical quantity. Corresponding overload detectors test the respective data streams for an overload condition. A data selector chooses the data stream having a full scale representing the smallest fraction of an expected maximum value based on the overload detector status.Type: GrantFiled: June 19, 2002Date of Patent: January 11, 2005Assignee: Agilent Technologies, Inc.Inventors: Russell A. Clegg, James R. Medunick
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Patent number: 6837108Abstract: A MEMS gyroscope system and method for increasing a dynamic range of the MEMS gyroscope is provided. By adjusting a scale factor of the MEMS gyroscope, the highest sensed rate will be increased, which increases the dynamic range. The scale factor may be adjusted by using a variable sense bias and/or an automatic gain control loop in sense electronics.Type: GrantFiled: April 23, 2002Date of Patent: January 4, 2005Assignee: Honeywell International Inc.Inventor: William P. Platt
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Publication number: 20040239308Abstract: A probe comprising a display device or a selection device attached thereto and a multimeter having a probe port to attach the probe are disclosed.Type: ApplicationFiled: May 26, 2004Publication date: December 2, 2004Inventor: David Fazzina
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Patent number: 6825717Abstract: A feedback network for connecting an output of an operational amplifier with a feedback input of the operational amplifier, wherein the feedback network comprises a feedback circuit. The feedback network comprises a semiconductor switch in series to the feedback circuit for turning off and on the feedback network.Type: GrantFiled: March 20, 2003Date of Patent: November 30, 2004Assignee: Agilent Technologies, Inc.Inventor: Ingo Dettmann
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Patent number: 6812685Abstract: An electrical testing device has non-contact AC voltage sensing, single probe contact AC voltage testing and voltage metering functions. Non-contact voltage sensing is used to detect the vicinity of a live AC conductor and single probe contact sensing is used to determine which conductor of a number of conductors in the vicinity is live. More specific information about the magnitude of the voltage can then be determined using both contact probes. The electrical testing device automatically determines the type (AC or DC) and polarity (if DC) of a voltage applied to test terminals, and provides an indication of the voltage range (AC or DC), without the need to operate any switches or other electrical actuators.Type: GrantFiled: February 13, 2002Date of Patent: November 2, 2004Assignee: Actuant CorporationInventors: George R. Steber, David L. Wiesemann, Thomas M. Luebke
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Patent number: 6794881Abstract: The root mean square of a power frequency voltage is measured across a large dynamic range, for example in order to measure electrical output, by converting the voltage to be measured into two or more partial voltage proportional thereto and measuring each partial voltage using an individual diode rectifier. The output voltages of said diode rectifiers are then converted into a digital value and each of these digital values is weighted with weighting factors, the ratio of said weighting factors being derived from the control factor of at least one of the diode rectifiers. These weighted digital values are then scaled to a common quantification unit and added to achieved the actual digital measurement value.Type: GrantFiled: July 30, 2002Date of Patent: September 21, 2004Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Thomas Reichel, Toralf Bratfisch
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Patent number: 6794859Abstract: To measure a resistance value in a circuit by conventional method, one side of the resistor should be disconnected from the circuit, then an Ohmmeter is connected across the resistor. To measure a current through a component, one side of the component should be disconnected and an ammeter is connected between the 2 open terminals. As such mentioned above, measuring a resistance value or a milliamp current value is very inconvenient with a conventional multimeter. With the present invention, a voltage, a current, and a resistance can be measured altogether at the same time automatically without manually disconnecting a component in a circuit with 2 or more resistors connected in series.Type: GrantFiled: November 20, 2002Date of Patent: September 21, 2004Inventor: Sang J. Choi
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Publication number: 20040095124Abstract: To measure a resistance value in a circuit by conventional method, one side of the resistor should be disconnected from the circuit, then an Ohmmeter is connected across the resistor. To measure a current through a component, one side of the component should be disconnected and an ammeter is connected between the 2 open terminals. As such mentioned above, measuring a resistance value or a milliamp current value is very inconvenient with a conventional multimeter. With the present invention, a voltage, a current, and a resistance can be measured altogether at the same time automatically without manually disconnecting a component in a circuit with 2 or more resistors connected in series. In a common emitter transistor circuit, the collector resistor and emitter resistor can be measured without opening a circuit.Type: ApplicationFiled: November 20, 2002Publication date: May 20, 2004Inventor: Sang J. Choi
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Patent number: 6734658Abstract: A wireless alternating current phasing voltmeter multimeter that uses modular wireless based components in order to provide indications of highly desirable parameters of interest, such as AC voltage, phase rotation, and the number of degrees difference between phases. The use of wireless technology eliminates the cable customarily used to interconnect the test probes and the metering circuitry, which may effectively eliminate the concern regarding the distance separating the power lines that are to be tested. The wireless alternating current phasing voltmeter multimeter has two base modules, but, because of the flexibility of the design, modifications can be readily incorporated into the present invention modules that allow for numerous operational and functional permutations to be implemented in order to meet an individual user's needs including the use of one of the modules as a hand-held base module that can be remotely located away from the electrical power lines (or test points).Type: GrantFiled: April 5, 2002Date of Patent: May 11, 2004Inventor: Walter S Bierer
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Patent number: 6675650Abstract: A tachyometric display for automotive engines comprising a display head defining a circular display field. The field comprises a plurality of concentric circular bands having a quiescent state in which all of the bands are of the same illumination level and/or color. An engine speed signal is connected through a logic circuit to change the illumination level and/or color of the bands to show speed increases. A conventional needle type speedometer indicator is combined with the display head and suitable indicia are superimposed on the display field.Type: GrantFiled: November 12, 2001Date of Patent: January 13, 2004Assignee: Yazaki North AmericaInventor: Sergio Alexandre Paulo
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Publication number: 20030234642Abstract: A high speed multiple range measurement system that selects on a sample by sample basis the range having the highest resolution and accuracy for which an overload condition does not exist. A plurality of analog to digital converters sample and convert an analog of a physical quantity, such as voltage, current, temperature, strain etc. to a plurality of digital data steams, each having a full scale range representing a fraction of an expected maximum value of the physical quantity. Corresponding overload detectors test the respective data streams for an overload condition. A data selector chooses the data stream having a full scale representing the smallest fraction of an expected maximum value based on the overload detector status.Type: ApplicationFiled: June 19, 2002Publication date: December 25, 2003Inventors: Russell A. Clegg, James R. Medunick