| Patents for G01R 13 - Arrangements for displaying electric variables or waveforms (5,418) |
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| 03/13/1991 | EP0416731A2 Simplified interface and method of operation for multi-function apparatus |
| 03/12/1991 | US4999573 Method and apparatus for measurement gate display |
| 03/08/1991 | CA2014655A1 Simplified interface and method of operation for multi-function apparatus |
| 02/28/1991 | DE3927744A1 Analogue indicator using LED chain, e.g. for gas sensor signal - has current comparator network able to tap into chain at any stage |
| 02/26/1991 | US4996654 Method of displaying acquired data |
| 02/20/1991 | EP0413272A2 Process, appliance and probe for measuring an electrical triphase system using an oscilloscope |
| 02/20/1991 | EP0413015A1 Method and apparatus for measuring of transients of high-frequency circuits by sampling |
| 02/07/1991 | DE3924284A1 Generating trigger pulse derived from input pulse - which is digitalised and obtained code words are sequentially compared for use as peak value |
| 01/29/1991 | CA1279735C Simultaneous display of two unrelated signals |
| 01/24/1991 | DE3924370A1 Measuring time span of oscillator in random sampling mode - using time measuring circuit receiving gate signal for time to be measured and gate signals of known duration |
| 01/16/1991 | EP0169903B1 Numerical value measuring instrument using oscilloscope device |
| 01/16/1991 | CN2069563U 起动电流测试装置 Starting current test device |
| 01/15/1991 | US4985665 Black level tracking for multiple frequency apparatus |
| 01/08/1991 | US4983924 Trigger circuit |
| 01/08/1991 | CA1278827C Dual function dmm display |
| 01/02/1991 | CN1011082B Measuring system for ultra-fast changed electric field |
| 12/27/1990 | CA1278344C Automatic peak-to-peak amplitude measurement system |
| 12/25/1990 | US4980845 Digital engine analyzer |
| 12/25/1990 | US4980632 Electrical signal observing device |
| 12/25/1990 | US4980605 Holdoff apparatus |
| 12/19/1990 | EP0403093A2 Method and apparatus for synchronized sweeping of multiple instruments |
| 12/18/1990 | US4979177 Enhanced counter/timer resolution in a logic analyzer |
| 12/11/1990 | US4977514 For a logic analyzer |
| 12/04/1990 | US4975880 Memory system for storing data from variable numbers of input data streams |
| 12/04/1990 | US4975689 Operation display method and apparatus for variables of an oscilloscope |
| 12/04/1990 | US4975636 Method and apparatus for selecting and displaying a high resolution window from a main display |
| 12/04/1990 | US4975635 Voltage detector using a sampling type high-speed photodetector |
| 11/27/1990 | US4974167 Erasable data acquisition and storage instrument |
| 11/27/1990 | US4973962 Signal level detect circuits |
| 11/27/1990 | US4973900 Voltage detecting device |
| 11/27/1990 | US4973897 System analyzer |
| 11/22/1990 | EP0398042A2 Method and apparatus for simulating analog display in digital display test instrument |
| 11/20/1990 | US4972139 Method for increasing the resolution of measurements taken using a counter-timer |
| 11/13/1990 | US4970443 For displaying a trace of an analogue input |
| 11/13/1990 | CA1276308C2 Digital engine analyzer |
| 10/30/1990 | US4967144 Electrical signal observing device for converting an electrical signal to be measured into an optical intensity waveform |
| 10/24/1990 | EP0393824A2 Test signal generator position cursors |
| 10/23/1990 | US4965755 Method and apparatus for monitoring AC input signals |
| 10/23/1990 | US4965548 Level indicator with alarm |
| 10/23/1990 | US4965467 Sampling system, pulse generation circuit and sampling circuit suitable for use in a sampling system, and oscilloscope equipped with a sampling system |
| 10/23/1990 | CA1275518C Raster display smoothing technique |
| 10/20/1990 | CA2008889A1 Test signal generator position cursors |
| 10/10/1990 | EP0391577A2 Sampling circuits |
| 10/09/1990 | US4962353 Voltage detector |
| 09/25/1990 | US4958640 Method and apparatus for correlating the display of information contained in two information signals |
| 09/25/1990 | CA1274622A1 Signal controlled waveform recorder |
| 09/18/1990 | US4958139 Method and apparatus for automatically calibrating the gain and offset of a time-shifted digitizing channel |
| 09/11/1990 | US4956568 Monolithic sampler |
| 09/11/1990 | US4956548 Ultrafast oscilloscope |
| 09/07/1990 | WO1990010239A1 Method and apparatus for measuring of transients of high-frequency circuits by sampling |
| 09/05/1990 | EP0385102A1 AC waveform monitoring system |
| 09/05/1990 | EP0385036A2 Erasable data acquisition and storage instrument |
| 08/29/1990 | CN2061293U High-speed transient recorder |
| 08/21/1990 | CA1273137A1 Device for storing and reproducing electric signals and an oscilloscope using such a device |
| 08/08/1990 | EP0381419A2 Improved method for determining topline and baseline of waveforms using differentiation |
| 08/08/1990 | EP0381217A2 Signal level detecting circuits |
| 08/08/1990 | EP0258231B1 Signal processing device |
| 08/07/1990 | US4947084 Cathode ray tube for storing and reproducing electrical signals |
| 07/18/1990 | CN1043991A Method of each line-frequency signal-watched by oscillograph |
| 07/17/1990 | CA1271858A1 Timebase generator with improved linearity and recovery time |
| 07/17/1990 | CA1271857A1 Sweep generator error characterization |
| 07/17/1990 | CA1271856A1 Oscilloscope having auxiliary display of a labelled cursor |
| 07/17/1990 | CA1271854A1 Digital storage oscilloscope with visible indication of trigger occurrence |
| 07/17/1990 | CA1271853A1 Digital minimum-maximum value sequence processor |
| 07/10/1990 | US4940931 Digital waveform measuring apparatus having a shading-tone display function |
| 07/04/1990 | EP0376515A1 A method of displaying acquired data |
| 07/03/1990 | US4939450 Precision high voltage FET pulse sense and clamp apparatus statement of government interest |
| 06/27/1990 | EP0374854A2 Method and apparatus for correlating the display of information contained in two information signals |
| 06/26/1990 | US4937579 Method of converting analog signals into digital signals and system for carrying out the method |
| 06/26/1990 | US4937037 Combined inforamtion recording and graphic display device |
| 06/26/1990 | CA1270906A1 Solid state electricity meter display |
| 06/23/1990 | CA2006626A1 Method and apparatus for correlating the display of information contained in two information signals |
| 06/13/1990 | EP0372825A2 Monolithic sampler |
| 06/06/1990 | EP0371656A2 Sequence of events detector for one or more digital signals |
| 06/05/1990 | US4931704 Ultrafast sampling oscilloscope |
| 05/22/1990 | US4928251 Method and apparatus for waveform reconstruction for sampled data system |
| 05/16/1990 | EP0368760A2 Autonomous device for detecting electric grid faults, and relevant process |
| 05/15/1990 | US4926067 Integrated superconducting sampling oscilloscope |
| 05/15/1990 | US4926057 Analog recording and integration of electric signals |
| 05/15/1990 | US4926039 Streaking or framing image tube with plural grid control |
| 05/15/1990 | CA1269168A1 Digital engine analyzer |
| 05/10/1990 | DE3936932A1 Triggersignalerzeuger fuer oszilloskope Trigger signal generator for oscilloscopes |
| 05/09/1990 | EP0367345A1 Logic analyser with double triggering |
| 05/09/1990 | CA2002471A1 Autonomous device for detection of faults on an electric network and process relating thereto |
| 05/08/1990 | US4924468 Logic analyzer |
| 05/08/1990 | CA1268820A1 Circuit testing |
| 05/02/1990 | EP0366244A1 Method and apparatus for combining an optical and electrical channel in an oscilloscope |
| 05/01/1990 | US4922452 10 Gigasample/sec two-stage analog storage integrated circuit for transient digitizing and imaging oscillography |
| 05/01/1990 | US4922186 Voltage detector |
| 05/01/1990 | CA1268567A1 Variable color comparison oscilloscope |
| 04/24/1990 | US4920496 Apparatus and method for calculating signal level in decibels |
| 04/24/1990 | US4920279 Method to expand an analog signal and device to implement the method |
| 04/17/1990 | CA1267981A1 Oscilloscope based signal level measurement system |
| 04/10/1990 | US4916677 Automatic period and frequency measurements |
| 04/04/1990 | EP0361832A2 Electro-optical differential voltage method and apparatus in a measuring system for phase shifted signals |
| 04/03/1990 | US4914359 Deflecting voltage generating circuit |
| 03/28/1990 | EP0360344A1 Picture display device suitable for displaying an oscilloscopic image on a display screen for displaying a picture formed line and field sequentially |
| 03/22/1990 | DE3916519A1 Contactless analogue value control circuit for medical equipment - has foil or sensor switches replacing double key switches with tow changeover contacts |
| 03/21/1990 | EP0358757A1 Measurement of the variation in time of a periodic signal |
| 03/20/1990 | US4910458 Electro-optic sampling system with dedicated electro-optic crystal and removable sample carrier |