Class / Patent application number | Description | Number of patent applications / Date published |
702067000 | Display of waveform | 72 |
20080201092 | Waveform Display Method And Apparatus - A method and apparatus for displaying an audio signal as an improved waveform includes a processor for determining samples of the audio signal which represent a waveform based on positions of pixels in the waveform and a time scale of the waveform, calculating minimum and maximum amplitudes of the samples for each pixel on a time axis and calculating intensities of frequency components of the samples which cannot be represented at the time scale of the waveform. The apparatus includes a display coupled to be in communication with the processor for displaying the samples as an improved waveform of amplitude versus time wherein the intensities of the frequency components are represented in the new waveform by shades of a single colour. | 08-21-2008 |
20080215269 | Pseudo Noise Sequence Acquisition in Spread Spectrum Systems - Systems and methods for signal analysis are described. The method can include digitizing a signal modulated by a pseudo noise (PN) sequence, dividing the digitized signal into a plurality of sample blocks, and estimating a PN phase embedded in a sample block of the plurality of sample blocks using an iterative message passing algorithm (iMPA) executed on a redundant graphical model. | 09-04-2008 |
20080243409 | Circuit testing apparatus - The invention discloses a circuit testing apparatus for testing a device under test. The circuit testing apparatus includes a precision measurement unit, a signal transformation module, and a microprocessor. The precision measurement unit is coupled to the device under test for providing a testing signal and receiving a measurement signal generated according to the testing signal. The signal transformation module is coupled to the precision measurement unit for receiving the measurement signal and transforming the measurement signal to a signal measurement result according to a predetermined manner. The microprocessor is coupled to the precision measurement unit and the signal transformation module for examining the signal measurement result to determine a test result for the device under test. | 10-02-2008 |
20080255784 | SIMULTANEOUS PHYSICAL AND PROTOCOL LAYER ANALYSIS - A method and apparatus for capturing an analog waveform on a serial bus. The method comprises the steps of designating a predetermined digital data sequence, decoding a serial data signal carried on a serial data bus, and comparing the decoded serial data signal to the predetermined digital data sequence. When it is determined that a portion of the decoded serial data matches the predetermined digital data sequence, the portion of the serial data signal corresponding to the matching portion of the decoded serial data signal is marked. | 10-16-2008 |
20080262764 | INSTRUMENT ARCHITECTURE WITH CIRCULAR PROCESSING QUEUE - Apparatuses for a test and measurement instrument provide an instrument capable of handling acquisition, transfer, analysis, and display of large quantities of waveform data and complex waveforms. The apparatus for a test and measurement instrument consists of multiple processors with each processor being connected to its own memory controller. Each memory controller is connected to its own memory. The processors are connected in a circular arrangement by multiple high-speed interconnects. A bridge is connected to at least the first and last processors. A system bus connects the bridge to an acquisition module. The acquisition module has a signal bus interface with the system bus being connected to the acquisition module and having its own acquisition hardware. The acquisition hardware is a direct memory access machine that can transfer data to any portion of the memory. There is a signal source connected to the signal bus interface. | 10-23-2008 |
20080262765 | APPARATUS AND METHODS FOR A TEST AND MEASUREMENT INSTRUMENT EMPLOYING A MULTI-CORE HOST PROCESSOR - The method for a test and measurement instrument includes the steps of: providing a test and measurement instrument; attaching a Device Under Test (DUT) to a signal source to be measured with at least one channel of the signal source in electronic communication with at least one of the acquisition modules; collecting data from the DUT; storing the collected data from the DUT in the acquisition module(s); dividing the collected data from the DUT into a plurality of pieces; assigning the plurality of pieces to the plurality of system buses; transferring the plurality of pieces to the memory connected to the processors by moving the plurality of pieces in parallel over their assigned system buses; processing the plurality of pieces with the plurality of processors; and displaying the results obtained by processing the priority of pieces with the plurality of processors. | 10-23-2008 |
20080262766 | MULTI-PIPE APPARATUS FOR A TEST AND MEASUREMENT INSTRUMENT - Apparatuses for a test and measurement instrument provide an instrument capable of handling acquisition, transfer, analysis, and display of large quantities of waveform data and complex waveforms. The apparatus includes multiple processors with each processor being connected to its own memory controller, wherein each memory controller is connected to its own memory. Each processor is connected to its own respective bridge, and each respective bridge is connected to its own respective system bus. Each respective system bus is connected to its own respective acquisition module having its own acquisition hardware. Each piece of acquisition hardware is a direct memory access machine that can transfer data to any portion of the memory. Each of multiple signal sources is connected to its own signal bus interface. | 10-23-2008 |
20080262767 | APPARATUS FOR A TEST AND MEASUREMENT INSTRUMENT - Apparatuses for a test and measurement instrument provide a scalable test and measurement instrument capable of handling the acquisition, transfer, analysis, and display of large quantities of waveform data as well as complex waveforms. The apparatus for a test and measurement instrument consists of multiple processors with memory connected to the processors. There are multiple bridges with each processor being connected to its own bridge. There are multiple system buses with each bridge been connected to its own system bus. There are multiple acquisition modules having signal bus interfaces with each system bus being connected to its own acquisition module and having its own acquisition hardware. Each piece of acquisition hardware is a direct memory access machine that can transfer data to any portion of the memory. There are multiple signal sources with each signal source being connected to its own signal bus interface. | 10-23-2008 |
20080270054 | Method and System for Digital Triggering of Signals on the Basis of Two Triggering Events Separated by a Time Difference - An approach is provided for digital triggering a recording of one or several signals sampled at individual sampling instants on a digital oscilloscope. The triggering is carried out when the interval between two recurrent triggering events is less or greater than a time threshold value. | 10-30-2008 |
20090024341 | SYSTEM AND METHOD FOR ANALYZING A SIGNAL DISPLAYING A NON-MONOTONIC TRANSITION - A system for analyzing non-monotonic of signals is provided. The system is configured for receiving a signal and displaying changes of the signal using a waveform curve. The system is configured for analyzing data of the signals and the waveform curve in order to locate peak points on the waveform curve. The system is also configured for storing the signal data and data generated during the analyzing process. A related method is also provided. | 01-22-2009 |
20090070054 | WAVEFORM ANALYZING METHOD AND APPARATUS FOR PHYSIOLOGICAL PARAMETERS - A method and an apparatus are provided for performing waveform analysis on physiological parameters. In one embodiment, a method includes reading measurement values of a first physiological parameter relating to time, and displaying them as a trend display graph in a trend display area that includes first coordinates representing time and second coordinates representing the measurement values. The method also includes acquiring a time selected in the trend display graph, and displaying, in a waveform display area, waveform data of a second physiological parameter associated with formation of the first physiological parameter during periods before and after the selected time. The waveform display area includes time coordinates. The disclosed embodiments allow medical staff to view the curve of a patient's physiological parameters throughout a monitoring/therapy period. Medical staff may make a detailed analysis of the waveform data in real time, which may provide a basis for making decisions in the following therapy processes. | 03-12-2009 |
20090105976 | AUTOMATIC JITTER MEASUREMENT METHOD - An automatic jitter measurement method for an oscilloscope is provided. The method includes: establishing a database in a data processing unit, in which the step of establishing the database includes establishing at least a horizontal delay parameter and a horizontal scale parameter; enabling the oscilloscope for fetching a test signal, according to the horizontal delay parameter and the horizontal scale parameter; enabling a signal accumulation function of the oscilloscope for obtaining a signal accumulation maximum position value and a signal accumulation minimum position value of the test signal; and adjusting a display position of the test signal on the oscilloscope to obtain a jitter value of the test signal according to the signal accumulation maximum position value and the signal accumulation minimum position value. | 04-23-2009 |
20090192739 | AUTOMATIC SIGNAL IDENTIFYING METHOD AND AUTOMATIC SIGNAL SKEW MEASUREMENT METHOD - In order to automatically measure a signal skew between a first test signal and a second test signal by using an oscilloscope, a method is provided by the present invention. The method includes: capturing a band center of the first test signal; capturing a first sampling point and a second sampling point of the second test signal; comparing a voltage difference between the first sampling point and the second sampling point of the second test signal with a threshold value so as to decide and capture a rising band center and a falling band center of the second test signal. By using the invented method, the signal skew between the first test signal and the second test signal can be calculated according to the band center of the first test signal, the rising band center and the falling band center of the second test signal. | 07-30-2009 |
20090222228 | MULTI-SCALE ENVELOPING SPECTROGRAM SIGNAL PROCESSING FOR CONDITION MONITORING AND THE LIKE - A signal processing technique that decomposes complex, dynamically changing non-stationary signals from machine components such as bearings into different scales by means of a continuous wavelet transform. The envelope signal in each scale is then calculated from the modulus of the wavelet coefficients. Subsequently, Fourier transform is performed repetitively on the envelope of the signal at each scale, resulting in an “envelope spectrum” of the original signal at the various scales. The final output is a three-dimensional scale-frequency map that indicates the intensity and location of the defect-related frequency lines. The technique is generic in nature, and applicable not only to machine condition monitoring, but also to the health monitoring of a wide range of dynamic systems, including human beings. | 09-03-2009 |
20090281748 | Method and Aparatus for Trigger Scanning - A method and apparatus for determining a trigger in a test and measurement apparatus are provided. The method comprises the steps of indicating one or more anomalies to be found, loading a first trigger configuration to the test and measurement apparatus and determining for a first predetermined time whether an input signal generates a trigger related to one or more of the one or more anomalies. A second trigger configuration is loaded to the test and measurement apparatus upon the conclusion of the first predetermined time, and for a second predetermined time it is determined whether the input signal generates a trigger related to one or more of the one or more anomalies. | 11-12-2009 |
20090281749 | Display Digital Signal Visualizations With Increasing Accuracy - Digital signal visualizations may be displayed with increasing accuracy as the signal data is processed. According to one embodiment, an entire digital signal visualization is displayed as data processing begins. As the digital signal data upon which the visualization is processed, the visualization is refined with increasing accuracy. In one embodiment, a process reads portions of the digital signal data and uses the partial data set to build a visualization of the entire digital signal file. The process continues to read portions of the digital signal data, and uses the additional data to refine the visualization. This process continues until the entire digital signal file is processed and the visualization is displayed with complete accuracy, using all data points. | 11-12-2009 |
20090306918 | Office Id Remote with Oscillating Circuit - An office ID remote that creates an oscillating waveform with a predetermined characteristic on a conductor found in a cable is provided. This characteristic is typically the rate of repetition of the waveform that can be compared to a table of rates of repetition stored in a main test unit that correlates each rate of repetition to a particular office ID remote. This allows the identity of the cable to be ascertained. | 12-10-2009 |
20100017157 | SYSTEM, METHOD AND APPARATUS FOR ACCURATE SIGNAL ANALYSIS - The embodiments herein provide a device, method and a system to for accurate measurement and analysis of signals. The embodiments provided herein reduce distortions in the signal. The system is configured to center the eye by accurately measuring the skew (between the clock and data signal) and the jitter and then, compensating it from asymmetrical eye plot. | 01-21-2010 |
20100036630 | SYSTEM AND METHOD FOR SIGNAL MEASUREMENT - A signal measurement method includes receiving a signal from a signal generating module; displaying a wave of the signal; reading a reference parameter of the signal, and adjusting the wave according to the reference parameter; measuring the signal according to the wave after adjustment; and displaying the measurement result. | 02-11-2010 |
20100036631 | Waveform Observing Apparatus - There is provided a waveform observing apparatus, which facilitates management of compressed data and measured data that were created for a reduced display, reduces a calculating amount in making the reduced display, and displays a boundary between stoppage and start of collection of measured data in a visually observable manner, in such a manner that, when a compression ratio is set to the number of pieces of data per display dot, a plurality of compressed data of a compressed-data file for display with a smaller compression ratio than the above used to calculate compressed data, to make a reduced display at the compression ratio after the setting change, final compressed data is created based upon measured data of a fraction at the time of stoppage of sampling, top compressed data is created based upon measured data of a fraction immediately after resuming of the sampling at the time of the resuming. | 02-11-2010 |
20100057388 | Digital Oscilloscope Module - The present invention provides a digital data acquisition module, such as a digital oscilloscope, that includes a synchronous random access memory (RAM), a digital signal processing unit, and a master control unit. The digital signal processing unit is coupled to the synchronous RAM and includes at least one analog-to-digital (A/D) converter that digitizes an analog signal, and a digital signal processor that includes a dual-port RAM, a plurality of processing blocks and a communications interface. The plurality of processing blocks process the digitized analog signal data, store the processed signal data in the synchronous RAM, create display data from the stored signal data, store the display data in the dual-port RAM. The master control unit is coupled to the digital signal processing unit and includes an internal communications interface coupled to the digital signal processor communications interface, an external communications interface and a central processing unit that receives the display data over the internal communications interface and transmits the display data over the external communications interface. | 03-04-2010 |
20100070223 | TESTING SYSTEM AND METHOD FOR BUS PARAMETERS - A testing system for bus parameters includes a wave displaying unit and a control module connected to the wave displaying unit. The control module includes a decode unit, a testing unit connected to the decode unit, and an output unit connected to the testing unit. The decode unit is connected to the wave displaying unit. The wave displaying unit is configured for receiving an electronic signal from a bus to be tested. The decode unit is configured for decoding the electronic signal to determine if the electronic signal is valid. The testing unit tests parameters of the bus. The output unit displays testing results for the parameters. | 03-18-2010 |
20100121595 | Virtual Probing - A method and apparatus for generating one or more transfer functions for converting waveforms. The method comprises the steps of determining a system description, representative of a circuit, comprising a plurality of system components, each system component comprising at least one component characteristic, the system description further comprising at least one measurement node and at least one output node, each of the at least one measurement nodes representative of a waveform digitizing location in the circuit. One or more transfer functions are determined for converting a waveform from one or more of the at least one measurement nodes to a waveform at one or more of the at least one output nodes. The generated transfer functions are then stored in a computer readable medium. | 05-13-2010 |
20100131220 | WAVEFORM DISPLAY METHOD AND A SIGNAL MEASUREMENT SYSTEM IMPLEMENTING THE SAME - A waveform display method is disclosed. The method includes determining the narrowest pulse in a waveform for display and determining an available pixel width for displaying the narrowest pulse in a first display portion if the entire waveform is to be displayed in the first display portion. The pixel width is measure in terms of a number of pixels. The method further includes displaying the entire waveform or a portion thereof in the first display portion depending on the available pixel width. A signal measurement system that implements the method is also disclosed. | 05-27-2010 |
20100268498 | SYSTEM AND METHOD FOR TESTING SIGNALS OF ELECTRONIC COMPONENTS - A method for testing signals of electronic components. The method sends a positioning command to a control computer through a switch, so as to drive a probe holder of a mechanical arm to position probes of the oscilloscope on a position of the electronic component. The method further receives measured data collected by the oscilloscope, and compares the measured data with preset standard values to determine if the measured data is acceptable. | 10-21-2010 |
20100305893 | Baseline Setting Method - The figure is fixed in a given position. If peaks are seen in the positive Y direction, the minimum value of the difference in height between the spectrum and the figure in the range where the figure is present on the X-axis. The minimum value and the height of the figure at the reference point are added. The figure is moved within a range containing the reference point, and the minimum value of the difference in height between the spectrum and the figure is added to the height of the figure at the reference point, at each point on the figure. A maximum value L | 12-02-2010 |
20110060540 | Test and Measurement Instrument and Method For Providing Post-Acquisition Trigger Control and Presentation - A test and measurement instrument and method for providing post-acquisition trigger control and presentation of associated waveforms on a display. An electrical signal under test is sampled and digitized, and stored in an acquisition memory as a data record. A display device draws a waveform associated with the signal under test. After the acquisition of the digital samples is stopped, a user selects trigger criteria using trigger controls such as a trigger level control. A trigger circuit detects a post-acquisition trigger event in the data record based on the trigger criteria causing an automatic adjustment of the waveform to conform to a time of the post-acquisition trigger event. One or more configurable trigger controls can be used to adjust a display of post-acquisition trigger events and waveforms. Upon resumption of the live-acquisition of data, the live waveform conforms to the newly selected trigger criteria as previewed during the post-acquisition mode. | 03-10-2011 |
20110060541 | Test and Measurement Instrument and Method For Providing Post-Acquisition Trigger Control and Presentation - A test and measurement instrument and method for providing post-acquisition trigger control and presentation of associated waveforms on a display. An electrical signal under test is sampled and digitized, and stored in an acquisition memory as a data record. A display device draws a waveform associated with the signal under test. After the acquisition of the digital samples is stopped, a user selects trigger criteria using trigger controls such as a trigger level control. A trigger circuit detects a post-acquisition trigger event in the data record based on the trigger criteria causing an automatic adjustment of the waveform to conform to a time of the post-acquisition trigger event. One or more configurable trigger controls can be used to adjust a display of post-acquisition trigger events and waveforms. Upon resumption of the live-acquisition of data, the live waveform conforms to the newly selected trigger criteria as previewed during the post-acquisition mode. | 03-10-2011 |
20110093225 | METHOD OF MAKING FREQUENCY DOMAIN MEASUREMENTS ON A TIME DOMAIN INSTRUMENT - A system and method of making frequency domain measurements on a waveform acquired by a time domain instrument, such as an oscilloscope, uses built-in FFT spectral analysis in the time domain instrument so that a user can perform the compliance measurements using the oscilloscope alone. The results of the measurement made by the oscilloscope are made comparable to those made by a spectral analyzer by improving dynamic range, noise floor, and measurement accuracy, by averaging on the time domain oscilloscope. | 04-21-2011 |
20110130990 | LOW VOLTAGE DIFFERENTIAL SIGNALING TIMING TEST SYSTEM AND METHOD - In a low voltage differential signal (LVDS) timing test system and method, a clock signal waveform and a data signal waveform are obtained. Clock cycles are selected from the clock signal waveform. Data bits transmitted within the selected clock cycles are identified from the data signal waveform. Accordingly, bit positions of the data bits are determined. | 06-02-2011 |
20110166813 | Dynamic Oscilloscope Triggering - A test and measurement instrument includes an input terminal to receive a signal, acquisition circuitry to capture a plurality of triggered acquisitions, trigger circuitry to cause a trigger event responsive to trigger criteria, and a controller to dynamically reconfigure the trigger criteria between triggered acquisitions. The controller is configured to dynamically reconfigure the trigger criteria from the first set of trigger criteria to subsequent sets of trigger criteria between each of the triggered acquisitions. A method is disclosed for scanning information associated with an initial triggered acquisition and, depending on the nature of the scanned information, dynamically adjusting the next or any subsequent set of trigger criteria. | 07-07-2011 |
20110270560 | DIGITAL OSCILLOSCOPE AND METHOD FOR CONTROLLING THE SAME - Provided are a digital oscilloscope and a method for controlling the same. The digital oscilloscope comprises a trace intensity synthesizer ( | 11-03-2011 |
20110282610 | DENSITY TRACE MEASUREMENT AND TRIGGERING IN FREQUENCY DOMAIN BITMAPS - A “density trace” according to an embodiment of the present invention is formed by measuring the density of each column of a frequency domain bitmap above a user-specified “amplitude threshold.” The density of each column equals the sum of the densities of all of the pixels in the column that are above the amplitude threshold divided by the sum of the densities of all of the pixels in the column. A density trace provides a convenient way to define and represent the occupancy for a large number of columns, and also allows density data to be quickly transmitted from one instrument or computer to another. In some embodiments, a density trace is incorporated into a trigger detector of a test and measurement instrument and used to generate a trigger signal. The trigger detector compares the density trace to a user-specified “density threshold” and generates the trigger signal when the value of any point of the density trace violates the density threshold. | 11-17-2011 |
20120041701 | TIME-DOMAIN TRIGGERING IN A TEST AND MEASUREMENT INSTRUMENT - Embodiments of this invention provide enhanced triggering capabilities such as frequency and phase triggering in a test and measurement instrument, such as a Real-Time Spectrum Analyzer (RTSA) or oscilloscope. A test and measurement instrument can include input terminals to receive RF signals, an ADC to digitize the RF signals, a digital downconverter to produce I and Q baseband component information, and a power detector to determine a power level using the I and Q information. A comparator compares the power level received from the power detector with a user-definable power threshold, and produces a logic signal for enabling one or more phase or frequency demodulators. The one or more demodulators produce IQ-based time-domain traces derived from the I and Q component information when the power level determined by the power detector exceeds the power threshold. Trigger circuitry is configured to trigger on an event responsive to a delayed trigger enable signal. | 02-16-2012 |
20120046897 | System and method for simultaneous display of waveforms generated from input signals received at a data acquisition device - A method and system for displaying waveforms generated from input signals received at a common input channel (CIC) of a data acquisition (DAQ) device. An input signal received at the CIC can be displayed as a present-time waveform, and while the input signal is displayed as a present-time waveform, the input signal can be tagged for displaying the input signal as a historical waveform for the CIC. After receiving another input signal at the CIC, a display can be refreshed to display, simultaneously, the historical waveform for the CIC and the other input signal as another present-time waveform for the CIC. The DAQ device can tag the displayed input signal in response to a user pushing a selector device on the DAQ device. The display can display other present-time waveforms with the historical waveform to allow a user to compare input signals received at the CIC. | 02-23-2012 |
20120095711 | APPARATUS FOR IMPARTING PHASE SHIFT TO INPUT WAVEFORM - There is set forth in one embodiment an apparatus and method for imparting a phase shift to an input waveform for output of a converted waveform. In one embodiment, a phase shift can be provided by four wave mixing of an input waveform and a pump pulse. In one embodiment, there is set forth an apparatus and method for generating a high resolution time domain representation of an input waveform comprising: dispersing the input waveform to generate a dispersed input waveform; subjecting the dispersed input waveform to four wave mixing by combining the dispersed input waveform with a dispersed pump pulse to generate a converted waveform; and presenting the converted waveform to a detector unit. In one embodiment a detector unit can include a spectrometer (spectrum analyzer) for recording of the converted waveform and output of a record representing the input waveform. | 04-19-2012 |
20120158334 | System for Independently Modifying Jitter and Noise Components in a Signal Digitizing Instrument - A digitizing instrument is used for modifying pattern data and jitter and noise components of a communication signal. In a typical implementation, the midpoints of a rising edge slope and horizontal portion of the communication signal are determined and multiple digital data records are acquired at the midpoints. The data sample records are transformed to frequency components and the random jitter and noise, and periodic jitter and noise components are determined. A correlated pattern data and the jitter and noise components are matrix elements in a simulated signal channel having communication system elements. Each correlated pattern data and jitter and noise component may be modified for each of the communication system element. The selectively modified correlated pattern data and jitter and noise components are combined to produce a modified communication signal that is displayed as a numeric table, eye diagram or bit error rate presentation. | 06-21-2012 |
20130066576 | A SYSTEM AND METHOD FOR MEASURING PHASE ATTRIBUTES OF ELECTRICAL GRID SYSTEM AND EQUIPMENT USING A SMART PROBE - A system for measuring phase attributes of high voltage electrical lines comprises a single high voltage probe. The probe comprises a sensing element for selectively measuring voltage of a high voltage electrical line. A processing circuit detects zero crossings of the measured voltage, applies a time tag to the zero crossings, and stores samples of the amplitude and time tagged zero crossings. A memory stores samples of the amplitude and time tagged zero crossings for a plurality of high voltage electrical lines. A processor is operatively associated with the memory for determining phase relationships between the plurality of high voltage electrical lines. | 03-14-2013 |
20130090874 | ELECTROMAGNETIC SPECTRUM AERIAL SURVEYING - Disclosed is an aerial surveying system for collecting electromagnetic spectrum data. Spectrally tuned antennas are used on an airplane to prefilter the data in accordance with spectral frequency bands. The data is sequentially sampled using an antenna switching device, band pass filtered and downconverted to an intermediate frequency. High speed vector signal analyzers and digitizers create frequency spectral data and I and Q temporal data. The collected data is recorded and compressed using any desirable compression technique, including video compression. Data analyzers analyze the data and display the data on a GIS map. | 04-11-2013 |
20130231882 | Acquisition Memory Allocation for Digital Storage Oscilloscope - The present disclosure provides an acquisition system for oscilloscopes having n input channels. The acquisition system comprises n A/D converters (2. | 09-05-2013 |
20130245977 | TEST AND MEASUREMENT INSTRUMENT AND METHOD FOR PROVIDING POST-ACQUISITION TRIGGER CONTROL AND PRESENTATION - A test and measurement instrument and method for providing post-acquisition trigger control and presentation of associated waveforms on a display. An electrical signal under test is sampled and digitized, and stored in an acquisition memory as a data record. A display device draws a waveform associated with the signal under test. After the acquisition of the digital samples is stopped, a user selects trigger criteria using trigger controls such as a trigger level control. A trigger circuit detects a post-acquisition trigger event in the data record based on the trigger criteria causing an automatic adjustment of the waveform to conform to a time of the post-acquisition trigger event. One or more configurable trigger controls can be used to adjust a display of post-acquisition trigger events and waveforms. Upon resumption of the live-acquisition of data, the live waveform conforms to the newly selected trigger criteria as previewed during the post-acquisition mode. | 09-19-2013 |
20130253866 | INTELLIGENT VISUALISATION IN THE MONITORING OF PROCESS AND/OR SYSTEM VARIABLES - The disclosure relates to a method and system for intelligent visualization in the monitoring of process and/or system data used in technical processes and in the operation of technical systems. The behavior of signals in the past is analyzed and used for a future optimized visualization. Continuously running online algorithms support the system operator by detecting and correspondingly highlighting deviations from the historically observed signal patterns. | 09-26-2013 |
20130311122 | TESTING SYSTEM - A testing system includes a computer, a connection cord, and a number of oscillographs. The each oscillograph has a GPIB port. The computer has a USB port. The connection cord has a USB connector for connection with the USB port and a GPIB connector for selectively connecting to a GPIB port of one of the oscillographs. The computer includes an oscillograph model displaying module, an oscillograph driving module, a storage module, and a testing interface module. The oscillograph model displaying module displays a number of oscillograph models for a user to select. The oscillograph driving module loads an oscillograph driver corresponding to the selected oscillograph model. The storage module stores a plurality of codes associated with a number of testing functions for different oscillographs. The testing interface module transmits the codes to the oscillograph, thereby driving the oscillograph to perform the associated testing functions to test a device. | 11-21-2013 |
20130346005 | SIGNAL ANALYSIS IN TIME AND FREQUENCY - An arrangement for signal analysis provides at least one central data-processing unit and a screen unit connected to the at least one central data-processing unit, wherein the central data-processing unit calculates a spectrum and a spectrogram from a digitised signal. The at least one central data-processing unit is embodied in such a manner that it controls the screen unit in such a manner that the spectrogram of the digitised signal, the characteristic of the spectrum of the digitised signal and the characteristic of the digitised signal present in the time domain can be displayed together on the screen unit. | 12-26-2013 |
20140032149 | CROSS DOMAIN TRIGGERING IN A TEST AND MEASUREMENT INSTRUMENT - An apparatus and method for triggering an oscilloscope is disclosed. The oscilloscope is configured to process a first signal in a first domain and a second signal in a second domain. The method includes choosing a different domain for processing each of the first and second signals, respectively. A desired trigger type is selected for one of the chosen domains. The first and second signals are acquired in response to an occurrence of a trigger of the selected trigger type. The first and second signals are processed according to the selected different chosen domains. The method may also include displaying a result of said processing on a display screen. | 01-30-2014 |
20140088900 | METHODS AND SYSTEMS FOR GENERATING DISPLAYS OF WAVEFORMS - Method and devices are described for visually detecting anomalies in non-repetitive signals. One device may take the form of an oscilloscope capable of displaying segments of a complete waveform record that includes non-periodic triggering events. The segments may be displayed vertically and horizontally offset from one another to aid in the visual detection of anomalies within the record. Decayed or aged segments of a waveform may also be simultaneously displayed. | 03-27-2014 |
20140088901 | BUILDING SAMPLE RATE INDEPENDENT TIMING DIAGRAMS USING DIGITAL EDGE AVERAGING - A method can include receiving an input signal having multiple signal edges, performing an initial scan of the input signal to identify peaks corresponding to the signal edges, and determining whether each peak is a Uniformly Synchronous (US) edge or a Quasi-Synchronous (QS) edge. The method can also include generating a final waveform and displaying the final waveform on a display device. | 03-27-2014 |
20140172339 | AUTOMATIC CENTER FREQUENCY AND SPAN SETTING IN A TEST AND MEASUREMENT INSTRUMENT - A test and measurement instrument having initial display center frequency and span settings and configured to process an input signal is disclosed. The test and measurement instrument includes a processor configured to digitize the input signal and locate a primary peak and determine a primary peak center frequency of the input signal. The processor is configured to adjust the initial display center frequency setting based on the primary peak center frequency. The processor is configured to perform a bandwidth comparison by comparing a bandwidth of the primary peak at a peak bandwidth test level to a peak bandwidth threshold. The processor is configured adjust the initial span setting based on the bandwidth comparison and generate a processed waveform signal using the adjusted display center frequency and span settings. | 06-19-2014 |
20140244195 | TESTING SYSTEM AND METHOD FOR VIDEO GRAPHICS ARRAY PORT - A VGA port testing system includes an oscilloscope and a testing device. The oscilloscope is adapted to connect to a VGA port of a motherboard to capture and detect signals output from the VGA port. The testing device is connected to the oscilloscope and adapted to automatically adjust preset parameters of the oscilloscope and create a testing report according to signal waveforms detected by the oscilloscope. The testing device further displays testing results according to the testing reports. A VGA port testing method using the VGA port testing system is also provided. | 08-28-2014 |
20140358464 | EQUIVALENT-TIME SAMPLING TECHNINQUE FOR NON-COHERENTLY MODULATED SIGNALS - Aspects of the invention include an equivalent-time sampling oscilloscope that receives a carrier signal, the carrier signal after it has been modulated with a repeating data pattern, and a pattern trigger signal that is synchronous with the data pattern. The carrier signal and the modulation are asynchronous, that is, they are not phase-locked in any way. The oscilloscope simultaneously samples the modulated carrier signal and quadrature phases of the unmodulated carrier signal at a plurality of timebase delays relative to the pattern trigger signal, and a plurality of times at each timebase delay. After collecting this information, the oscilloscope uses the quadrature samples to calculate phases of the unmodulated carrier signal that correspond to the samples of the modulated carrier signal. The oscilloscope then calculates a stationary representation of the modulated carrier signal by selecting samples of the modulated carrier signal that correspond to a carrier signal phase progression that would have been observed if the unmodulated carrier signal had been synchronous with the pattern trigger signal. | 12-04-2014 |
20150066409 | Real-time Oscilloscope For Generating a Fast Real-time Eye Diagram - Disclosed is an improved real-time oscilloscope (“IRTO”) for generating a fast worst-case real-time eye diagram from an input signal. The IRTO may include signal conditioning circuitry, a digitizer, an acquisition memory, a clock and data recovery (“CDR”) module, a worst-case real-time eye diagram rendering (“WRTER”) module, and a display. | 03-05-2015 |
20150081238 | RF Signal Meter - A radio frequency (RF) meter configured to measure both scalar power and phase information is disclosed. The meter performs a calibration to account for properties of an external coupler connected to the meter inputs. Internal couplers are optionally provided which direct the input signals to a phase detector. The meter is optionally connected to a display and network connections for transmitting the scalar power and phase information. | 03-19-2015 |
20150142357 | ANALYSIS DEVICE, ANALYSIS METHOD, AND PROGRAM - A switcher transmits, to an extractor/signal determiner, a converted current signal generated by a current-voltage converter when a converted current signal determiner determines that the converted current signal is generated by transmission of a current signal over a communication line, in the meantime, performs a switch-over so as not to transmit, to the extractor/signal determiner, a converted voltage signal generated by a voltage sensor. In addition, the switcher transmits, to the extractor/signal determiner, the converted voltage signal when a converted voltage signal determiner determines that the converted voltage signal is generated by transmission of a voltage signal over a communication line, in the meantime, performs a switch-over so as not to transmit, to the extractor/signal determiner, the converted current signal generated by the current-voltage converter. | 05-21-2015 |
20150293162 | ELECTROMAGNETIC FIELD FEATURE CLASSIFICATION AND PRESENTATION DEVICE - An electromagnetic field feature classification and presentation device is provided with: an acquisition means for collecting time series measurement data relating to an electromagnetic wave emitted from an object to be measured while associating the measurement data with the coordinates of positions; a feature amount calculation means for calculating one or more feature amounts for the coordinates of each position regarding the measurement data collected by the acquisition means; a feature analysis means for performing feature classification based on a cluster analysis on feature amount groups in the coordinates of respective positions calculated by the feature amount calculation means; a mapping processing means for linking classification results by the feature analysis means with the coordinates of respective positions and mapping the classification results on a space corresponding to the object to be measured; and an output means for presenting the result of the mapping by the mapping processing means. | 10-15-2015 |
20150301085 | Automatically Capturing Data Sets of Interest from a Data Acquisition Data Stream - Capturing datasets of interest from a data acquisition data stream. An acquired dataset may be received from a measurement device. The acquired dataset may include measurement data from measurements of one or more physical phenomena acquired by the measurement device, and may be a current dataset in a sequence of datasets acquired by the measurement device. The acquired dataset is buffered, resulting in a buffered dataset. One or more thresholds specifying datasets of interest may be automatically determined based on the buffered dataset or one or more previously acquired datasets. The buffered dataset may be automatically analyzed with respect to the one or more thresholds, and a determination may be made as to whether the buffered dataset is a dataset of interest based on said automatically analyzing. In response to determining that the buffered dataset is a dataset of interest, the buffered dataset may be stored in a storage medium. | 10-22-2015 |
20150338442 | DYNAMIC MASK TESTING - A device is capable of receiving a waveform and capturing acquisitions of the waveform. Different boundary masks can be applied to the waveform acquisitions, depending on the timing of the acquisition. When a timing interval finishes, a different dynamic boundary mask can be loaded from memory. Boundary masks can include any number of segments, and can be used whenever desired. | 11-26-2015 |
20150369844 | INDUCED FIELD DETERMINATION USING DIFFUSE FIELD RECIPROCITY - Methods and systems are provided for determining the surface electromagnetic impedance of a conductive element and applying the diffuse field reciprocity principle using that surface electromagnetic impedance to determine electric fields induced in the conductive element. An exemplary method involves determining a surface electromagnetic impedance matrix for the conductive element based on its physical dimensions and an excitation frequency for an incident electromagnetic wavefield, applying diffuse field reciprocity to determine a metric indicative of an induced field based on the surface electromagnetic impedance matrix and an energy metric for the incident electromagnetic wavefield, and displaying a graphical representation of the metric on a display device. | 12-24-2015 |
20160033553 | INTELLIGENT ELECTRICAL CIRCUIT DIGITAL AMPERAGE DISPLAY INTERFACE - An intelligent electrical circuit digital amperage display interface apparatus is disclosed. In use, the old style circuit breaker is replaced with the new apparatus for connecting electrical panels and using the apparatus of the present invention, displays the amperage that travels through a standard circuit breaker out to a device under use which shows the load on that circuit's line, twenty-four hours a day. In use, the apparatus allows the user (homeowner, landlord, utilities staff and anyone else) the capability to see what the amperage being used at any given moment in time as that circuit is being used or not. Additionally, a digital display integration interface is provided within the electrical circuit breaker for displaying to a user the smallest of amperage to the largest of amperage that is being used on any given circuit. | 02-04-2016 |
20160124022 | SIGNAL PROCESSING SYSTEM, SIGNAL PROCESSING METHOD, AND SIGNAL PROCESSING PROGRAM - A signal processing system includes a data detection part that detects analog data of a current and a voltage supplied to a plurality of electrical devices, a data conversion part that converts the analog data into digital data, a separation part that separates the digital data into individual pieces corresponding to the plurality of electrical devices, an operation estimation part that estimates status of each of electrical devices by analyzing the individual digital data, and an output part that outputs the status of each electrical device based on an estimation result from the operation estimation part to allow visual recognition, wherein the output part outputs an image indicating the status onto an area image indicating an area in which the electrical device is installed, the operation status image includes a character image displayed on the area image when the estimation result by the operation estimation part satisfies a predetermined condition. | 05-05-2016 |
20160146855 | FORMATTING AND NAVIGATING GRAPHED INFORMATION - A method in an electronic device that may include determining, with a processor, a quantity of group markers in a data set, and determining, with the processor and based on the quantity of group markers, a suggested view from a plurality of available views, each view in the plurality of available views diagrammatically depicting at least a portion of the data set. Also, a processor-implemented method of navigating between portions of a data set may include displaying, on a touchscreen display, a diagrammatical depiction of a first portion of the data set; detecting a continuous arc gesture at the touchscreen display; determining a direction of the arc gesture; selecting a second portion of the data set based on the determined direction of the arc gesture; and displaying a diagrammatical depiction of the second portion of the data set. | 05-26-2016 |
20160156336 | MATCHING CIRCUIT FOR MATCHING AN IMPEDANCE VALUE AND A CORRESPONDING SYSTEM AND METHOD | 06-02-2016 |
702068000 | Having specified user interface (e.g., marker, menu) | 11 |
20090192740 | MARK EXTENSION FOR ANALYSIS OF LONG RECORD LENGTH DATA - A method of analysis of long record length data using mark duration includes displaying together with a portion of the long record length data each mark that identifies a specified feature of interest together with the mark duration. Associated with the mark may be text identifying the feature of interest, measurement values associated with the duration of the mark, or a combination thereof. Multiple sets of marks may be generated for the long record length data, which sets may be combined to generate new marks with duration. The marks also may be filtered to further refine the marks to be displayed according to user specified criteria. In this way analysis of long record length data representing an acquired signal may be readily automated so a user may move from one interesting event to another without having to pan through the long record length data. | 07-30-2009 |
20090265126 | MEASURING DEVICE FOR A PREVIEW DISPLAY OF SEVERAL TIME-VARIABLE ELECTRICAL SIGNALS - A measuring device for displaying several time-variable electrical signals. The measuring device includes a front panel, which provides various operating elements, with a screen, which provides several display fields. The first display field provides at least one window, which corresponds to a given measurement channel, where the time-variable electrical signal is presented in this first display field and can be switched as a maximized display to the second display field. For each signal presented in maximized format in the second display field, a status field is then displayed in the corresponding first display field. | 10-22-2009 |
20100063760 | METHOD OF PROCESSING WAVEFORM DATA FROM ONE OR MORE CHANNELS USING A TEST AND MEASUREMENT INSTRUMENT - The method of processing waveform data from one or more channels using a test and measurement instrument, such as an oscilloscope, is described in which waveform data is collected from a DUT; defining a context is defined by instructing the instrument to obtain the focus of each waveform datum having a first user-defined attribute; defining a selection criteria by instructing the instrument to obtain the focus of each waveform datum having both a first user-defined attribute and a second user-defined attribute; and defining an action by instructing the instrument to perform an operation responsive to finding at least one waveform datum having both the first user-defined attribute and the second user-defined attribute. | 03-11-2010 |
20100100346 | Test and Measurement Instrument and Method of Switching Waveform Display Styles - A test and measurement instrument and method of switching waveform display styles includes acquiring an electrical signal, storing peak detect data samples from the electrical signal to one or more memory devices, storing filtered data samples or unfiltered data from the electrical signal, automatically switching to a first waveform display style having the peak detect data samples configured in a first mode when a user selects the unfiltered data, and automatically switching to a second waveform display style having the peak detect data samples configured in a second mode when the user selects the filtered data samples. | 04-22-2010 |
20100228508 | APPARATUS AND METHOD FOR PERFORMING BURST TRIGGERING IN A TEST AND MEASUREMENT INSTRUMENT - A test and measurement apparatus, system, and method for synchronizing an acquisition or triggering system to a specific burst of interest. The subject apparatus and method triggers on varying energy content of a signal qualified by time in the presence of high-frequency input signal bursts, by using an adjustable pulse width envelope detector, disposed in the signal path of the trigger circuitry, as a digital rectifier or to otherwise process and extract an envelope signal. An RF envelope probe having an analog envelope detector among other suitable components is disclosed. A method is implemented for isolating an interval of interest in a signal under test. An envelope detector circuit produces an envelope signal from the signal. Trigger circuitry receives the envelope signal from the envelope detector, and isolates the interval of interesting in the signal under test using the envelope signal. | 09-09-2010 |
20110098955 | SYSTEM AND METHOD FOR CALIBRATING OSCILLOGRAPH CHANNELS - A system and method for calibrating oscillograph channels assigns the same value to a drawing parameter of each channel. Each channel receives a signal sent by a signal generator. The oscillograph calculates a voltage difference between a standard signal voltage of a standard channel defined by a user and a signal voltage of each of the other channels. A sequence relationship between each of the other channels and the standard channel is determined. The oscillograph adjusts a deskew value of each of the other channels until each voltage difference is in an allowable range according to the sequence relationship. | 04-28-2011 |
20110137594 | High Waveform Throughput with a Large Acquisition Memory - A waveform display apparatus and method displays one or more waveforms of a signal under test at high throughput while acquiring digital data of the signal under test in a large acquisition memory. A user sets a time interval of user's interest when viewing a signal under test and sets trigger criteria through a user interface. An ADC converts the signal under test into digital data that is stored in a large acquisition memory. A trigger unit detects and produces trigger events, based on a trigger, as trigger event information during one acquisition process. A trigger event eliminator may discard some of the trigger events based on pre-trigger and post-conditions set through the interface by a user. The trigger events are recorded in a trigger list as the trigger event information. A control unit locates the digital data in the acquisition memory corresponding to the trigger events in the trigger list and displays a waveform associated with the trigger event for the time interval on a display device. | 06-09-2011 |
20130231883 | APPARATUS AND METHOD FOR PERFORMING BURST TRIGGERING IN A TEST AND MEASUREMENT INSTRUMENT - A test and measurement apparatus, system, and method for synchronizing an acquisition or triggering system to a specific burst of interest. The subject apparatus and method triggers on varying energy content of a signal qualified by time in the presence of high-frequency input signal bursts, by using an adjustable pulse width envelope detector, disposed in the signal path of the trigger circuitry, as a digital rectifier or to otherwise process and extract an envelope signal. An RF envelope probe having an analog envelope detector among other suitable components is disclosed. A method is implemented for isolating an interval of interest in a signal under test. An envelope detector circuit produces an envelope signal from the signal. Trigger circuitry receives the envelope signal from the envelope detector, and isolates the interval of interesting in the signal under test using the envelope signal. | 09-05-2013 |
20140163914 | SCROLLING MEASUREMENT DISPLAY TICKER FOR TEST AND MEASUREMENT INSTRUMENTS - A test and measurement instrument configured to receive at least one input signal is disclosed. The test and measurement instrument includes a processor configured to sample the input signal and generate a plurality of measurements. The processor is configured to generate a measurement ticker having a plurality of ticker elements configured for presentation on a display in a serial, scrolling fashion. Each ticker element has a measurement value associated with the input signal. The processor may be configured to sample a plurality of input signals and each ticker element may include a measurement value associated with at least one of the plurality of input signals. Each ticker element may further comprise a source ID and a measurement type. | 06-12-2014 |
20140343883 | User Interface for Signal Integrity Network Analyzer - A graphical user interface for use with a signal integrity network analyzer is provided. The user interface may include a selection for selectively enforcing one or more of passivity, reciprocity and causality in one or more measurements by the signal integrity network analyzer. The user interface may include a recalculate selection, wherein after analysis of a calculated waveform, one or more system parameters may be modified, and the previously acquired waveform is again analyzed without acquisition of any additional waveform data in accordance with the one or more modified system parameters. The user interface may include a selection for configuring a number of ports for a device under test to be employed by the signal integrity network analyzer. The user interface may include a selection for autoparking one or more relays associated with the signal integrity network analyzer. | 11-20-2014 |
20160069932 | A MEASURING DEVICE AND MEASURING METHOD WITH MULTIPLE DISPLAY - The invention relates to a measuring device and a measurement method for the display of a measurement signal connected to the measuring device. The measuring device comprises a measurement-signal input, a measurement-parameter input, a calculation unit and a display unit for the display of calculated statistical signals. The measuring device is set up to display a plurality of statistical signals in parallel on the display unit in real-time. | 03-10-2016 |