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8981760 Rotatable display for test and measurement apparatus  
A physically rotatable display for a test and measurement apparatus is provided. The display of instrument information and data is automatically reconfigured based on the user selected orientation...
8791689 Oscilloscope probe  
Disclosed is a probe for an oscilloscope comprising a multi-stage transistor amplifier that acts as an impedance transformer. Said amplifier is a d.c.-coupled emitter follower circuit that is...
8788234 Method of calibrating interleaved digitizer channels  
In a multi-channel oscilloscope a method of calibrating interleaved digitizer channels initially calibrates each digitizer channel to produce a bandwidth enhanced filter for each digitizer channel...
8674713 Zero ampere level current data correction for a power device under test  
An apparatus and method corrects for zero ampere level current fluctuations in a current signal. First and second acquisition circuitry generate respective current and voltage data samples of the...
8624580 Configurable measuring device with display and corresponding methods  
The measuring machine according to the invention has a display device, a processing device, and at least one measurement channel. The processing device measures the measurement signal of the at...
8552711 Device for testing serial attached small computer system interface signal  
A signal testing device includes an oscillograph having a plurality of first connection ports, and a signal transmitting cable. The signal transmitting cable includes a plurality of second...
8542005 Connecting digital storage oscilloscopes  
An apparatus includes a first oscilloscope having multiple channels, and a second oscilloscope having multiple channels. The first oscilloscope is configured to operate as a master or as a slave....
8536858 Oscilloscope probe assembly  
An oscilloscope includes a number of probe assemblies. Each probe assembly includes a probe and a connecting member. The connecting member includes a first connecting portion that may be coiled...
8497696 Test signal detection system having a probe with high-precision DC-voltage measurement  
A test-signal detection system provides a probe, a first transmission line and a measuring device. The probe is connected to the measuring device by the first transmission line. The first...
8456154 Low voltage differential signaling test system and method  
In a low voltage differential-mode signaling (LVDS) test system and method, a positive signal waveform and a negative signal waveform of an LVDS signal pair are obtained. A differential-mode high...
8410804 Measurement system with high frequency ground switch  
A system for making high frequency measurements on a DUT includes a high frequency measurement instrument; a plurality of DUT probes; a first coaxial cable having a center conductor and a coaxial...
8358121 Digital multimeter having remote display with automatic communication mode switching  
A multimeter comprising a base unit having at least one test lead terminal. A remote display unit separate from the base unit is also provided. The remote display unit has a display operative to...
8332175 Oscilloscope probe calibrating system  
An oscilloscope probe calibrating system for a single terminal probe and a differential probe includes an oscilloscope, a main branch module, a sub-branch module, and a resistor. The oscilloscope...
8324885 Mixed signal acquisition system for a measurement instrument  
A mixed signal acquisition system for a test and measurement instrument allows configuring of the number of analog and digital channels in use. The instrument includes an analog input interface...
8278953 Oscilloscope probe  
In an oscilloscope probe with a transistor amplifier constructed on a semiconductor substrate using integrated circuit technology, at least one part of the input-voltage divider is also...
8129982 Voltage sensing circuits and methods for inverters  
A voltage sensing circuit includes a voltage divider and a voltage rectifier. The voltage divider divides a first output voltage on a first output voltage line to a first divided output voltage....
8004273 System for simplified correlation of instrumentation probes and data displays  
A system for testing a device under test includes a probe that detects a signal from the device under test, a display device that depicts a trace based on the signal, where the trace exhibits an...
7970565 Measuring device, test device, electronic device, program, and recording medium  
A measurement apparatus that measures a signal under measurement, including a strobe timing generator that sequentially generates strobes arranged at substantially even time intervals, a level...
7855547 Drawing waveforms in no dead time acquisition system  
A method of drawing a waveform image in a no dead time acquisition system, where consecutive drawing frames overlap, uses a master/slave relationship between two fast rasterizers. The master...
7746058 Sequential equivalent—time sampling with an asynchronous reference clock  
A sequential equivalent-time sampling oscilloscope simultaneously acquires samples of a signal-under-test and a reference clock that is asynchronous with the signal-under-test. The oscilloscope...
7746457 Light quantity measuring apparatus  
The present invention provides a light quantity measuring apparatus capable of properly measuring, in short time, light to be measured whose quantity fluctuates periodically. Charges generated and...
7723976 Self-adjusting hold-off trigger  
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...
7652465 No dead time data acquisition  
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...
7554319 Circuits and methods for voltage sensing  
A voltage sensing circuit includes a voltage divider and a voltage rectifier. The voltage divider divides a first output voltage on a first output voltage line to a first divided output voltage....
7460967 Selectable navigation to automatically discovered events within the acquisition record of a digital sampling oscilloscope  
Events discovered by an automatic measurement subsystem in the trace of a DSO are visited using a set of event navigation controls. In a TIME Mode the controls operate to display the first of...
7421355 Measuring apparatus, measuring method, testing apparatus, testing method, and electronic device  
There is provided a measuring apparatus for measuring a signal-under-test, having a comparator for sequentially comparing voltage values of the signal-under-test with a threshold voltage value fed...
7398169 Measuring apparatus, measuring method, testing apparatus, testing method, and electronics device  
There is provided a measuring apparatus for measuring a signal-under-test, having a comparator for sequentially comparing voltage values of the signal-under-test with a reference voltage value fed...
7379830 Period determination of a periodic NRZ signal  
A method and apparatus for determining the period Tp of a signal representing a digitally modulated waveform using NRZ coding with a discrete/integer number of a clock periods between signal...
7352167 Digital trigger  
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...
7327302 Equivalent time asynchronous sampling arrangement  
An asynchronous sampling arrangement utilizes sampling of both a high speed data signal and a trigger (clock) signal. The data signal may be either an optical signal or an electrical signal. The...
7305312 Method and apparatus for recording a real time signal  
A system, method, and apparatus for obtaining a record of logic level transitions within a signal, and for accurately determining a voltage-time pair exhibited by the signal. To achieve these...
7262627 Measuring apparatus, measuring method, and test apparatus  
There is provided a measuring apparatus that generates a first strobe signal and a second strobe signal in synchronization with an output signal, sequentially changes phases of the strobe signals...
7227349 Method and apparatus for the digital and analog triggering of a signal analysis device  
A method and apparatus enabling the analog and digital triggering of a signal analysis device such as a Logic Analyzer, wherein separate analog and digital signal paths provide separate analog and...
7072785 Rate measurement for anomalous trigger events  
A method and apparatus for processing anomalous trigger event conditions to provide anomalous trigger event rate measurements. The apparatus operates to identify one or more trigger events in at...
7061226 Method to detect a defective element  
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...
7026805 Method of setting grids and/or markers in measuring apparatus  
A method is provided of setting grids and/or markers on a screen of a display unit of a measuring apparatus. First, a mode of the apparatus is changed into a mode of setting the grids and/or the...
7005846 System and method for application control in measurement devices  
A system and method for application control in measurement devices is disclosed. The method includes installing a new application using the device's graphical user interface, extending the...
6987381 Apparatus for adjusting waveform display position in waveform display  
A waveform display position adjusting apparatus is provided for more conveniently and rapidly adjusting a position at which a waveform is displayed on a waveform display device. The apparatus is...
6972554 Universal aircraft generator electrical bench test apparatus  
An electrical test box is provided for selectively connecting a generator to one of a plurality of test devices where the generator has a plurality of circuits. The electrical test box includes an...
6915218 Method of constraints control for oscilloscope timebase subsection and display parameters  
An apparatus and method for constraining temporal parameters associated with the acquisition and display of signals under test acquires samples of a signal under test (SUT) as corresponding sample...
6847199 Capturing both digital and analog forms of a signal through the same probing path  
An instrument includes a probe providing a single signal path for conveying a signal from a circuit under test to the instrument. A receiver circuit within the instrument divides the path into an...
6833695 Simultaneous display of data gathered using multiple data gathering mechanisms  
Waveforms of input/output signals for a device under test (DUT) are simultaneously displayed. A user is presented with an interface that allows the user to specify different modes for capturing...
6825648 Distributorless ignition adapter for diagnostic oscilloscopes  
A distributorless ignition adapter for diagnostic oscilloscopes which an interface box, an oscilloscope connection cord and several inductive pick ups. The oscilloscope connection cord has a first...
6812688 Signal acquisition method and apparatus using integrated phase locked loop  
A test and measurement apparatus and method wherein a software implemented phase lock loop recovers a clock signal associated with the received data signal, the recovered clock signal being used...
6784655 Method of setting gribs and/or markers in measuring apparatus  
A method is provided of setting grids and/or markers on a screen of a display unit of a measuring apparatus. First, a mode of the apparatus is changed into a mode of setting the grids and/or the...
6760673 Method and apparatus for waveform measurement instrument  
Sampling techniques and circuits for a waveform measuring instrument. The sampling techniques and circuits process a series of digital signal samples through a set of sample extractors and...
6756775 Quasi-periodic optical sampling  
Repetitive sampling of a data signal is performed. A clock reference is generated. The clock reference has a known period relationship with the data signal. The clock reference and the data signal...
6753677 Trigger jitter reduction for an internally triggered real time digital oscilloscope  
Trigger jitter in an internally triggered real time digital oscilloscope can be reduced through correcting the horizontal position value obtained from a conventional trigger interpolation...
6614221 Deskew fixture  
A deskew fixture has a multilayer circuit board from which pairs of mirrored signal launch contact extend from both sides of the circuit board. One pair of contacts is coupled to electrical ground...
6577964 Apparatus and method for determining compliance margin of a waveform relative to a standard  
Compliance margin of a waveform is determined relative to a standard, indicating the extent to which the waveform either complies or fails to comply with the standard. An acquisition system...

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