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Class 324/115 - Plural ranges, scales or registration rates


Subclass of Class 324 - Electricity: measuring and testing
Definition: Subject matter having plural ranges, plural scales, or plural
No. of patents: 394
Last issue date: 03/27/2012


1                    
NumberTitleIssue Date
8143880Dual-range measurement of electrical current
An electrical current measurement system. A sense impedance and a composite amplifier are in electrical communication and together define a trans-impedance circuit that presents a frequency-compensated impedance lower than the sense impedance to an input electrical ...
03/27/2012
8115474Multi-range electrical current measurement
An electrical current measurement system. A first low-range current gauge receives a current to be measured and provides a first intermediate value indicative of the amplitude of the current up to a first maximum current. A second low-range current gauge receives an...
02/14/2012
8076926Rotary switch memory for digital multimeter
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 chan...
12/13/2011
8030914Portable electronic device having self-calibrating proximity sensors
A method of a portable electronic device for self-calibration of a proximity sensor. A background measurement is obtained by the proximity sensor and a detection threshold of the proximity sensor is adjusted based on the background measurement. The background measur...
10/04/2011
8013594Digital multimeter having hinged shield arrangement
A multimeter comprises a case having a circuit board located therein. The circuit board has a top side and a bottom side. A shield arrangement is configured to cover at least a portion of the top side and the bottom side of the circuit board. The shield arrangement ...
09/06/2011
8004272Digital multimeter having visible light communication port
A digital multimeter can be monitored from a remote location via an on-board light source such as a backlight LED. The digital multimeter has memory, a processor operatively coupled to the memory, a light operatively coupled to the processor and the memory and a lig...
08/23/2011
7990131Device and method for measuring a first voltage and a second voltage by means of a differential voltmeter
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...
08/02/2011
7944197Clamp meter with rotary mechanism for clamp jaws
The present invention provides a clamp meter with clamp jaws whose position is adjustable in different planes with respect to the plane of the main body of the clamp meter at various fixed angles, thereby helping the user to measure the current in the conductors whi...
05/17/2011
7944198Multimeter
A multimeter includes a switching circuit. The switching circuit includes a micro control unit (MCU), a first normally-open switch, a second normally-open switch, and an electronic switch. The first and second normally-open switches connect to the MCU. The MCU conne...
05/17/2011
7923985Active autoranging current sensing circuit
A range-changing circuit for a measurement device having a desirable range includes an array of graduated impedances. And amplifier supplies an electrical voltage to at least one of the impedances of the array. A voltage sensing and limiting switch is provided in a ...
04/12/2011
7679356Digital multimeter having improved recording functionality
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. ...
03/16/2010
7626375System and method for configuring a display for a digital multimeter
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 val...
12/01/2009
7538539Current meter with reduced range switching and load transients
An ammeter for ATE instrumentation includes an amplifier, a first current measuring circuit coupled to the amplifier's power supply leads, and a second current measuring circuit coupled to the amplifier's output. The first current measuring circuit is used to select...
05/26/2009
7439725Multimeter
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 conne...
10/21/2008
7372246Phase identification system and method
A system and method for determining the relative phase between current-carrying conductors. A reference unit samples and digitizes a voltage waveform at a reference location and transmits the digitized voltage waveform. A field sampling unit is placed on or directly...
05/13/2008
7365528Method and apparatus of voltage measurement using flying capacitor and switching circuits
The present invention is to provide a method and apparatus of voltage measurement with a high resolution. An apparatus of voltage measurement includes: a buffer circuit for separating a voltage between terminals of a capacitor or an equivalent voltage into a first v...
04/29/2008
7362086Integrated current sensor
A current sensor includes coupled inductors that generate an output current responsive to a detected current. The coupled inductor is implemented in an integrated circuit. An integrator circuit generates a sensed voltage responsive to the output current. ...
04/22/2008
7363175Query based electronic battery tester
An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base...
04/22/2008
7359822Testing device
A testing device that tests an electronic device includes a test pattern outputting unit operable to output a test pattern to the electronic device, a deciding unit operable to decide whether an output signal from the electronic device satisfies a predetermined cond...
04/15/2008
7350429Custom vehicular monitoring device
The present invention discloses a method and system for providing custom vehicular monitoring gauges for individuals. The custom vehicular monitoring gauges include a display face having an upper show surface and a lower surface. A sensor scale and a display area ar...
04/01/2008
7347696Electrical junction box having an adjustment hole
An electrical junction box is located so as to oppose to an adjuster which is provided on a rear face of an on-vehicle instrument. The electrical junction box has a first face which faces the on-vehicle instrument, and a second face which is opposite to the first fa...
03/25/2008
7342393Multimeter with filtered measurement mode
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 w...
03/11/2008
7339367Interface for detection and control of multiple test probes
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 dete...
03/04/2008
7336065Energy device with an extended dynamic range on current readings
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...
02/26/2008
7332903Device and method for measuring a current flowing in an electrical conductor
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 f...
02/19/2008
7327346Electrode and connecting designs for roll-to-roll format flexible display manufacturing
The present invention generally is directed to electrode designs suitable for roll-to-roll format flexible manufacturing of an EPD. It is also directed to an EPD having a segment design in a repeated pattern across an entire roll of the display. The EPD preferably i...
02/05/2008
7324919Apparatus for analysing the condition of a machine
An apparatus for analysing the condition of a machine having a rotating shaft, includes: at least one input for receiving measurement data from a sensor for surveying a measuring point of the machine, the measurement data being dependent on rotation of the shaft; an...
01/29/2008
7322115Steering column module for a motor vehicle
The invention relates to a steering column module for a motor vehicle, comprising a steering angle sensor (13) that is inserted into a module housing (1,2). The rotor of the steering angle sensor is assigned to a steering column and co-operates with at...
01/29/2008
7323859Auto-measuring universal meter
An auto-measuring universal meter is disclosed. The auto-measuring universal meter includes a main unit having a display and a single button. A pair of test probes is electrically connected to the main unit in a removable manner to detect a first input signal; an in...
01/29/2008
7319304Shunt connection to a PCB of an energy management system employed in an automotive vehicle
A method of coupling a shunt to a printed circuit board (PCB) of an energy management system is provided. The method includes coupling flexible electrical connectors to the shunt and soldering the flexible electrical connectors to connection points on the PCB of the...
01/15/2008
7312602Electrical meter with retractable leads
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 bi...
12/25/2007
7309979Utility services usage and demand reporting system
An electric power usage and reporting system for collecting electric power demand readings from multiple properties which may be either commonly owned or leased by the same company, processing the demand data to generate KWH and KW information on an individual prope...
12/18/2007
7304618Remote display for portable meter
A remote display is provided for use with a portable meter, such as a portable meter used for obtaining electrical measurements. The remote display can optionally be mounted to an extremity of a user for displaying information obtained by the portable meter within a...
12/04/2007
7295936Electronic battery tester with relative test output
An electronic battery tester for testing a storage battery determines a condition of the battery. The condition is a relative condition and is a function of a dynamic parameter of the battery and an empirical input variable. ...
11/13/2007
7284455Electronic environment sensing instrument having an analog indicator
An electronic environment sensing instrument having an analog indicator has a casing having a front panel with a scale, an electronic sensing and driving assembly mounted in the casing, a needle and a DC power supply. The electronic driving indicator assembly has a ...
10/23/2007
7279505Radiation-curable prepolymers
The present invention provides a radiation-curable prepolymer. The radiation-curable prepolymer of the invention is prepared by reacting an isocyanate-capped polyurethane with an ethylenically unsaturated amine or an ethylenically unsaturated monohydroxy compound or...
10/09/2007
7276893Automatic ranging current shunt
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...
10/02/2007
7248150Menu-driven remote control transmitter
A digital processor-based remote controller of a wireless remote control system includes a small number of manual input devices, such as keys and scroll wheels, and a graphical user interface. The remote controller can have a single scroll wheel with internal push-t...
07/24/2007
7246015Alternator tester
An alternator tester is provided for testing an alternator of a vehicle while the alternator is coupled to the vehicle. A sensor is configured to couple to the vehicle and sense a signal related to operation of the alternator. A memory contains data related to opera...
07/17/2007
7231060Systems and methods of generating control signals
Separating a source in a stereo signal having a left channel and a right channel includes transforming the signal into a short-time transform domain; computing a short-time similarity measure between the left channel and the right channel; classifying portions of th...
06/12/2007
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