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WO/2004/033997A1 |
In a measurement device, according to a measurement signal acquired from an object to be measured, a predetermined physical amount contained in the measurement signal is measured in a predetermined measurement range concerning a particul...
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WO/2004/032049A2 |
A method and apparatus for processing a data signal is provided. The apparatus comprises an acquisition unit (715, 720 and 725) of a test instrument for acquiring a data signal for a predetermined time, a memory (730) of the test instrum...
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WO/2004/029637A1 |
An electrical safety monitor (20) includes a housing (50) with a display face (70) and a securing section (54) that connects with an electrical panel (62). Electrical circuitry (30) is contained in the housing (50). The electrical circui...
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WO/2003/102873A1 |
An oscilloscope, comprising a diplay (100), a display controller for controlling information to be displayed on the display, and an acquisition system for acquiring a sequence of waveforms (105). Two or more of the sequentially acquired ...
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WO/2003/091674A2 |
Apparatus and methods are provided for reducing coherent noise in measurements of repetitive analog signal waveforms by digital signal averagers. A conventional DSA (30) being used to record the time-dependent signal (5) constituting a p...
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WO/2003/073317A1 |
A digital signal processing system (1) capable of compensating for frequency response variations (5) and generating a response characteristic (8) that complies with a provided specification (14). The system automatically generates digita...
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WO/2003/073222A2 |
A method and apparatus for calibrating an oscilloscope and storing the calibration results for further use. Accordingly, an oscilloscope is provided with a calibration cache database for storing various calibration curves and their assoc...
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WO/2003/065633A2 |
An improvement apparatus and method for interfacing a time variant waveform between two hardware environments. In one aspect, the invention comprises a circuit (800) for accurately simulating the output of one or more types of sensing de...
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WO/2003/060615A2 |
At least one exemplary embodiment of the present invention includes a method comprising obtaining a first frequency and a second frequency. The method also comprises creating a table of values comprising a plurality of target frequencies...
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WO/2003/054726A1 |
A decimation system and decimation circuit for decimating waveform data on an oscilloscope. The decimation circuit is implemented using sixteen parallel 16-to-1 multiplexers connected in parallel to a data bus which selectively captures ...
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WO/2003/054802A1 |
A method and apparatus for defining, configuring and performing a custom processing function in a digital oscilloscope. The custom processing function is programmed by the operator using a programming language. The custom function may be...
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WO/2003/052430A1 |
The aim of the invention is to graphically represent the I and/or Q components of digitally modulated high frequency signals. To this end, said I or Q components measured in a temporally successive manner are graphically represented side...
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WO/2003/050765A1 |
A method for displaying a compacted data signal, comprising the steps (Fig. 1) of acquiring a data signal comprising a plurality of data values&semi computing a compaction table based upon said acquired data signal&semi generating a min&...
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WO/2003/050961A2 |
A method for synchronizing a plurality of sub-systems (110 and 120), comprising the steps of measuring a relationship between a divider (112 or 122) associated with each of the plurality of sub-systems(110 or 120) : and adjusting a phase...
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WO/2003/050651A2 |
A method and apparatus for displaying measurements of a waveform as icons on an oscilloscope. A plurality of analog acqusition signals C1 may be acquired by the oscilloscope of the invention. These acquisition signals are acquired in acc...
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WO/2003/050548A1 |
An oscilloscope apparatus, comprising a display for displaying a plurality of objects (520), a toolbar displayed on the display (530), and a user interface for selecting an object. The display displays one or more functions on the toolba...
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WO/2003/050796A1 |
An oscilloscope apparatus for scaling and displaying persistence data using interpolation. The oscilloscope apparatus acquires a waveform and accumulates persistence data of the acquired waveform in a results buffer. The size of the pers...
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WO/2003/044543A2 |
A system (100) that measures a segment of a waveform by isolating the segment by virtue of gating (10). A waveform anomaly may be gated. The gated waveform is supplied to a plurality of frequency information extractors (16, 18, 20), whic...
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WO/2003/044542A1 |
The invention is concerned with a binary voltage indicator for use with high- or medium voltage equipment. The indicator comprises a photoactive layer (5) which changes its reflectivity or emissivity when subjected to an electric field a...
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WO/2003/034077A2 |
A method of probing voltage comprises: establishing electrical connectivity between a conductor (805) to be probed and a first terminal of a photoconductive switch (600); during a sampling interval n, applying a laser pulse (830) to the ...
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WO/2003/025596A2 |
An on-board self test system for an electrical power monitoring device includes a test signal circuit in an electronic circuit of the monitoring device, and responsive to a programmable test input signal for producing an analog signal si...
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WO/2003/016924A2 |
An oscilloscope adapter for a portable electronic device includes a hardware interface connector and a computer program memory. The memory stores computer program instructions that to direct the electronic device to collecting data repre...
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WO/2003/012464A1 |
A data reduction circuit serves as a post-processor for digitized waveform data, providing reduced data sets for subsequent processing. Preferably, the data reduction circuit receives one or more potentially long sequences of digital wav...
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WO/2003/012613A1 |
A storage unit stores a plurality of function menu data corresponding to a plurality of function menu items over a plurality of pages used for instructing execution of a plurality of different functions for processing measurement data of...
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WO/2003/012467A1 |
A circuit generates a test signal useful in verifying the actual delay values of individual delay stages in a digital delay line. In general, the cumulative delay of the delay line defines a window in time having its zero point anchored ...
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WO/2002/097373A2 |
A display for displaying acquired waveforms (110) from an oscilloscope. An x-axis measurement (120) designating time during an acquisition trace, a y-axis measurement (150) designating one or more acquisition traces, and a z-axis measure...
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WO/2002/097451A1 |
A circuit tester for both 14-volt and 42-volt automotive electrical systems includes a housing with a probe tip at one end and a ground connector at the other end. A battery-powered voltage detection circuit in the housing includes a plu...
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WO/2002/093181A1 |
A waveform detector having a signal processing function for producing an output waveform by detecting, by characterizing, a transient state variation having no periodic repetition or by subjecting an input waveform to 1/f fluctuation con...
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WO/2002/079787A1 |
An impulsive transient detection and data acquisition coprocessor for use with a power monitoring device having a processor for performing data sampling and reporting at a given rate. The coprocessor has a processor, an interface for acc...
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WO/2002/059632A1 |
A waveform digitizer device which is provided with N pieces of A/D converters connected in an interleave configuration when the number of interleave phases is N (at least 2), samples a sampling timing of each A/D converter at a specified...
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WO/2002/045213A2 |
A clockless time-of-flight interval timer includes a tapped delay line register comprising N buffers that each contribute a substantially identical incremental time delay. A latched version of a START pulse associated with an output of t...
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WO/2002/041102A2 |
A method and apparatus for generating a graphical representation of a processing web 100 of an instrument. The method comprises the steps of determining a first processing element of the processing web and placing the first processing el...
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WO/2002/041088A1 |
A method and apparatus for governing the internal operation of an instrument. A plurality of analog signals (C1) are acquired by the oscilloscope. These signals are controlled by an control module (112) in accordance with various probes ...
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WO/2002/041493A2 |
A method and apparatus for configuring and performing processing in a digital oscilloscope. The method comprises the steps of receiving one or more instructions and defining a plurality of processing elements (760) based upon the receive...
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WO/2002/041103A2 |
An oscilloscope apparatus and method of processing waveform data using a streaming architecture. The apparatus has multiple processing objects (processors) that share a common cache memory in which the waveform data is stored during proc...
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WO/2002/041009A2 |
A method and apparatus for saving the operational settings of an instrument. The method comprises the steps of initiating the saving operation, initializing, by each software object, any additional software objects below each softwear ob...
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WO/2002/019150A1 |
The invention pertains to systems that sample a continuous analog time-domain signal. The invention is particularly applicable to systems whose analog components have a bandwidth limit below that desired or specified. The invention has b...
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WO/2002/018966A1 |
An interleaving AD conversion waveform digitizer in which the digitizer comprises N AD converters (N is two or more integer) having N interleaving phases and interconnected in an interleaving structure, the sampling of each AD converter ...
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WO/2002/010778A1 |
The automatic probe identification system of the present invention automatically identifies an electrical test probe 30 as being associated with a particular channel 22, 24, 26, 28. Specifically, an automatic probe identification system ...
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WO/2001/094955A2 |
A microwave and millimeter-wave electric-field mapping system based on electro-optic sampling has been developed using micromachined Gallium Arsenide crystals mounted on gradient index lenses and single-mode optical fibers. The probes ar...
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WO/2001/092899A1 |
A sampling digitizer, comprising a sampling head (11), a clock generating part (12), a digitizer (13), and a trigger circuit (14), wherein clock signals from the clock generating part (12) are supplied also to a delay element (15) to swi...
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WO2000050906A9 |
An electronic utility meter coupled to an electrical system of a facility includes a source of energy consumption information, a display, a power supply operable to convert AC electrical power from an external power source to bias power ...
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WO/2001/067623A2 |
A system (100), method and program product for monitoring a complex signal for ultrasensitive detection of state changes, or for signature recognition and classification is provided. A complex signal is decomposed periodically for empiri...
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WO/2001/054295A2 |
In order to display the amplitude distortions of a transmission channel, the amplitude distribution of a measurement signal of a known amplitude distribution is measured at the output of the transmission channel. Based on a given multitu...
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WO/2001/031352A1 |
A plurality of signal-processing units corresponding to a plurality of operation modes are housed in a case (1), on the front (1a) of which are arranged a control panel (3), a display and a plurality of signal terminals (5a) located near...
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WO/2000/031552A1 |
This invention transforms a single sub-nanosecond event into a repetitive event, which then can be used as input to a conventional high bandwidth digital sampling oscilloscope (47) by utilizing a delay line (17) switched to form a closed...
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WO/2000/028711A1 |
For measuring and evaluating multi-carrier signals the I and/or Q components obtained by demodulation are integrated across several values and are graphically shown for every single carrier or combined carrier groups of the multi-carrier...
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WO/2000/010161A1 |
A signal processing system comprising coding means operable on an applied input signal for affording a plurality of successive waveform shape descriptors indicative of the applied signal and for comparing successive pairs of correspondin...
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WO/1999/064873A1 |
The invention concerns an electric sampler, characterised in that it comprises: a structure (40) for propagating electrical pulses; N sampling means (44-1, 44-2, 44-3; 46-1, 46-2, 46-3) connected to sampling points along the propagating ...
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WO/1999/060414A2 |
Integrated voltage level indicator comprising a plurality of polymer LEDs between two contact leads, in which the number of luminescing LEDs and/or the intensity of the light in each LED is determined by the external voltage level.
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