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WO/2008/028532A1 |
A device, especially a multichannel oscilloscope (2), for analyzing at least one measurement signal (22), transmitted via a multichannel system (4), and having a plurality of measurement channels (24, 26, 28, 30), comprises respective sa...
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WO/2008/028537A1 |
The invention relates to an analytical device for analyzing a signal waveform using a mask. Said analytical device comprises a memory device (101) for providing a signal image address of a signal pixel of a signal image and for providing...
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WO/2008/022653A1 |
A signal processing device (100), preferably an undersampling ADC using coherent sampling, is presented for processing a signal (102) , the signal processing device (100) comprising a comparator unit (105) for comparing the signal (102) ...
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WO/2008/025023A1 |
An improved interpolation technique for reconstructing a complex signal from sampled data estimates a carrier phase for each sampled data time. The carrier phase is then used to compensate for frequency variation in the complex signal. T...
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WO/2008/021485A2 |
A method and apparatus for evaluating data are provided. The method comprises the steps of acquiring waveform data, performing one or more measurements on the waveform data to generate measurement data, applying a filter to the generated...
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WO/2008/022251A2 |
A multiple probe acquisition system, such as for use with a value instrument, uses probes where each probe includes an acquisition circuit for acquiring from a circuit under test an electrical signal as digital data at a high rate, and t...
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WO/2008/016986A2 |
A noise rejection filter for a trigger circuit uses an algorithm that updates the filter output monotonically so long as the signal slope remains unchanged, maintains the filter output at a constant level when the signal slope changes bu...
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WO/2008/016982A2 |
A self-adjusting hold-off trigger circuit and method detects a threshold crossing between consecutive samples of a digitized input signal as edge events, identifies the crossing as a qualified trigger event if the crossing is in a desire...
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WO/2008/010608A2 |
A signal analyzer repetitively memorizes waveform data of a signal under test to detect peaks P1 - P6 of the waveform data. Waveform widths of the waveform data at a mask reference level, or a predetermined level down from the respective...
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WO/2007/146258A2 |
A signal filtering technique is designed to remove noise. A signal waveform is sampled at different points of a number of consecutive periodic noise signal cycles and the collected samples are averaged to produce a corrected signal. The ...
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WO/2007/134697A1 |
The invention relates to a measuring device (1) for displaying a plurality of electrical signals (2) which can change over time, said device having a front panel (4), which comprises different operating elements (5), and a screen (9) whi...
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WO/2007/131175A2 |
A novel method and device for measuring electrical parameters in an energy meter in an electrical system is described. The novel method samples an electrical energy signal and determines a relevant portion of the sampled electrical energ...
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WO/2007/128392A2 |
A method and an apparatus for digitally triggering a recording (7) of a digitized measurement signal having a superimposed noise signal produce a digital trigger signal from the digitized measurement signal. Before the digital trigger si...
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WO/2007/112327A2 |
A “no dead time” data acquisition system for a measurement instrument receives a digitized signal representing an electrical signal being monitored and generates from the digitized signal a trigger signal using a fast digital trigger...
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WO/2007/112360A2 |
An improved digital trigger circuit has a plurality of data samples extracted from an input electrical signal for each sample clock cycle. The plurality of data samples are compared in parallel with a high threshold level and a low thres...
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WO/2007/107871A2 |
Selectable portions of a display on a display screen allow a user to select bits of a digital signal. A mode selection menu changes the bit selection to select bits in different ways. If an individual bit designation mode is selected, ob...
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WO/2007/090467A1 |
The invention relates to a device (100) for testing a device under test - DUT (116) by applying test signals and receiving response signals, comprising a signal generator (112, 14) for providing a probing signal to the DUT (116), a refle...
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WO/2007/056677A2 |
A frequency hopping pattern of a frequency hopping signal is detected by use of spectrogram-generating software in a digital storage oscilloscope. By using a spectrogram, a hopping pattern can be determined without having to demodulate t...
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WO/2007/022574A1 |
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 th...
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WO/2007/016332A2 |
A user interface for a load control device comprising a plurality of status indicators allows a user to control an operating characteristic of a load to a plurality of discrete levels, where the number of discrete levels is greater than ...
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WO/2007/012376A1 |
The invention relates to a system for digitally triggering a recording of one or several signals (S) sampled at individual sampling instants on a digital oscilloscope, wherein said triggering is carried out when the interval (Δt) betwee...
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WO/2007/012355A1 |
The invention relates to a method and a system for digital triggering of a recording of one or more digitized signals (S) on a digital oscilloscope by means of carrying out a level comparison for determining a triggering instant in each ...
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WO/2006/119634A1 |
The invention relates to a current sensor for monitoring electrical disturbances on an electrical circuit having an electrical conductor. The current sensor comprises a magnetic flux sensor for sensing a magnetic flux generated by a curr...
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WO/2006/096115A1 |
The present invention relates to a method and an arrangement for visual indication of an electrical quantity, being one or several of power, current and/or voltage through a conductor. The arrangement comprises a substantially wire shape...
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WO/2006/093944A2 |
An apparatus for mitigating condensation formation on a device interface board during low-temperature semiconductor device testing includes a nozzle (10). The nozzle includes an input orifice (32) for receiving gas from a gas source and ...
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WO/2006/087782A1 |
Jitter of a signal generator is measured more accurately by subtracting temporal fluctuation of a waveform measuring instrument used for measuring jitter from jitter measured by a jitter measuring instrument. The fluctuation of a wavefor...
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WO/2006/085771A1 |
Method for measuring, analysing and registration of parameters at an electrical energy network. A voltage or current from the actual power network is scaled with a known factor and supplied to an audio input of a computer with an audio c...
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WO/2006/075046A1 |
The plug of the invention combines the wires coining from a cross-connection point of a telecommunication network to a plug contact, The plug is foreseen with a resistance situated between wires to be combined, In the method of the inven...
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WO/2006/063037A1 |
A computer controlled solid-state switching power factor corrector, which senses the phase angle of each phase of the current as well as the voltage and automatically aligns the current phase angle to the voltage phase angle. This power ...
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WO/2006/060080A1 |
A signal generator has a signal generating system with an output. A control parameter system controls a state of the signal generating system. A graphical display system displays a graphical image associated with the output.
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WO/2006/058951A1 |
The invention relates to pickup coils which are associated with mobile telephones. The inventive coils are characterised in that they can light up luminescent diodes when connected to passive reflectors. Said action is achieved once sign...
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WO/2006/039375A2 |
A system and method for characterizing the jitter of a periodic signal. Samples of the signal are taken with a sampling device. A set of samples representing a particular value of the signal in multiple cycles of the periodic signal is c...
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WO/2006/033676A2 |
The present invention relates to a device and method that digitally replicates the analog processing that is normally associated with an instantaneous frequency measurement device. Specifically, the present relates to a digital frequency...
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WO/2006/012241A2 |
A method of characterizing the overlap of two media segments is provided. In an instance where there is some amount of overlap of a file and a data sample, the file could be an excerpt of an original file and begin and end within the dat...
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WO/2006/003338A1 |
A single-stroke optical pulse profile measurement device including means (1, F) for generating, from a starting optical pulse (I), a series of response pulses (Ri) to the starting optical pulse; control means (2, 3, 4, AMP) for adjusting...
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WO/2005/121814A1 |
A method of analyzing waveform data using a logic analyzer (10) is provided. The logic analyzer comprises a control circuit (11) and a memory (12). A waveform data is retrieved from a test object (40) and stored into the memory (12) of t...
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WO/2005/119273A1 |
The invention relates to a multi-channel digital oscilloscope comprising: a plurality of analog inputs, circuits for the analog processing of input signals, sampling and digitizing circuits, means for triggering and synchronizing differe...
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WO/2005/103736A1 |
The invention relates to a digital signal processing device (1) which comprises a first signal processing unit (8) for a first signal branch (A), whose signal processing result is recorded in a first memory (10), and a second signal proc...
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WO/2005/101032A1 |
A method of compressing values of a waveform of a monitored electrical power signal. The method includes of acquiring data representative of periods of the waveform (202), decomposing the waveform of the power signal into a plurality of ...
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WO/2005/081728A2 |
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 d...
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WO/2005/080998A1 |
A composite power quality indication generated from user weighted statistical contributions of selected system parameters provides an overall indication of power quality in an electric power distribution system. The user defined weightin...
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WO/2005/064279A1 |
A method of processing measurements in a distribution network comprising a plurality of interconnected nodes. The method comprises a step of detecting predetermined network parameters at respective sensing stations disposed at predetermi...
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WO/2005/057943A2 |
A method for determining a frequency error over at least one frequency search space for a received signal, the method including the steps of: calculating a first noise estimation for a first frequency offset in a frequency search space; ...
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WO/2005/052604A1 |
A portable electric testing equipment comprising: a probe; ground contact means for contacting a ground terminal of a measured object; a voltage input unit for receiving a voltage applied from the probe; a controller for applying a test ...
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WO/2005/005997A1 |
A trigger signal generation device includes: a frame synchronization circuit for receiving a frame signal of a predetermined bit rate and outputting a synchronization signal synchronized with the input timing of the head data of the fram...
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WO/2004/104531A2 |
In a method and system for determining the composition of a subscriber loop, the method consists of analyzing the echo responses generated by the transmittal of pulses onto the subscriber loop. In the method, discontinuities along a loop...
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WO/2004/075150A2 |
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 b...
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WO/2004/063695A1 |
The present invention relates to a method to detect at least one defective pixel in a spatial light modulator comprising numerous pixel elements. The spatial light modulator is imaged to a detector. A relayed image of a first chess-board...
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WO/2004/038432A2 |
A method and apparatus for digitizing a data signal, the method comprising the steps of receiving an input analog data signal (100), splitting (112) the received input analog data signal into a plurality of split signals, and mixing (116...
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WO/2004/036231A2 |
A method and apparatus for displaying substantially noise-free segments of serial data waveforms. The method comprises the steps of dividing an acquired waveform into a plurality of waveform slices and categorizing each of the plurality ...
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