FR2468914A1 - - Google Patents

Info

Publication number
FR2468914A1
FR2468914A1 FR8023418A FR8023418A FR2468914A1 FR 2468914 A1 FR2468914 A1 FR 2468914A1 FR 8023418 A FR8023418 A FR 8023418A FR 8023418 A FR8023418 A FR 8023418A FR 2468914 A1 FR2468914 A1 FR 2468914A1
Authority
FR
France
Prior art keywords
voltage
display
mode
acquisition
position voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8023418A
Other languages
English (en)
Other versions
FR2468914B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tektronix Inc
Original Assignee
Tektronix Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tektronix Inc filed Critical Tektronix Inc
Publication of FR2468914A1 publication Critical patent/FR2468914A1/fr
Application granted granted Critical
Publication of FR2468914B1 publication Critical patent/FR2468914B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/20—Cathode-ray oscilloscopes
    • G01R13/22—Circuits therefor
    • G01R13/30—Circuits for inserting reference markers, e.g. for timing, for calibrating, for frequency marking
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/20—Cathode-ray oscilloscopes
    • G01R13/22—Circuits therefor
    • G01R13/34—Circuits for representing a single waveform by sampling, e.g. for very high frequencies

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Television Scanning (AREA)
  • Amplifiers (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

Ce circuit de contrôle de position est incorporé à un oscilloscope pour permettre de positionner un signal avant et après transformation en affichage numérique. Un circuit de détection et de maintien 32 est couplé au potentiomètre de commande de position afin d'engendrer une tension de référence qui détecte la tension de position selon un mode d'acquisition de forme d'onde et qui est maintenue à un niveau fixe dans un mode d'affichage a ors que la tension de position, appliquée au préamplificateur d'acquisition 12, est réglable de façon variable; un circuit additionneur 34 soustrait la tension de référence de la tension de position afin de fournir une tension de positionnement modifiée à l'amplificateur d'affichage 60, laquelle est de valeur zéro dans le mode d'acquisition et variable dans le mode d'affichage. Application aux oscilloscopes pour en maintenir l'affichage numerique dans la fenêtre qui en fixe les limites.
FR8023418A 1979-10-29 1980-10-28 Expired FR2468914B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/076,532 US4346333A (en) 1979-10-29 1979-10-29 Position control circuit for a digital oscilloscope

Publications (2)

Publication Number Publication Date
FR2468914A1 true FR2468914A1 (fr) 1981-05-08
FR2468914B1 FR2468914B1 (fr) 1984-04-13

Family

ID=22132615

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8023418A Expired FR2468914B1 (fr) 1979-10-29 1980-10-28

Country Status (7)

Country Link
US (1) US4346333A (fr)
JP (1) JPS5931009B2 (fr)
CA (1) CA1150358A (fr)
DE (1) DE3040745C2 (fr)
FR (1) FR2468914B1 (fr)
GB (1) GB2064924B (fr)
NL (1) NL8005821A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0287837A1 (fr) * 1987-03-24 1988-10-26 Tektronix, Inc. Contrôle de position de curseurs à des points spécifiques d'une onde affichée

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472707A (en) * 1982-06-18 1984-09-18 Allied Corporation Display processor digital automatic gain control providing enhanced resolution and accuracy
US4495586A (en) * 1982-07-29 1985-01-22 Tektronix, Inc. Waveform acquisition apparatus and method
US4641246A (en) * 1983-10-20 1987-02-03 Burr-Brown Corporation Sampling waveform digitizer for dynamic testing of high speed data conversion components
JPS6170773U (fr) * 1984-10-15 1986-05-14
US4689674A (en) * 1985-09-26 1987-08-25 Tektronix, Inc. Dual resolution position control
GB8616588D0 (en) * 1986-07-08 1986-08-13 Gould Electronics Graphics display
US4823077A (en) * 1986-11-10 1989-04-18 Hewlett-Packard Company Channel-gain-vernier-tracking trigger hysteresis for an oscilloscope
US5578935A (en) * 1995-05-25 1996-11-26 Texas Instruments Incorporated Undersampling digitizer with a sampling circuit positioned on an integrated circuit
JP2001331152A (ja) * 2000-05-22 2001-11-30 Nec Corp 液晶表示装置の駆動回路及び該回路で駆動される液晶表示装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2623093A1 (de) * 1976-03-17 1977-09-22 Hewlett Packard Co Verfahren und vorrichtung zum erzeugen einer anzeigemarke

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527980A (en) * 1968-03-28 1970-09-08 Control Data Corp Digital variable intensity display
US3836851A (en) * 1973-03-08 1974-09-17 Nicolet Instrument Corp Digital oscilloscope control apparatus
US3914758A (en) * 1973-04-16 1975-10-21 Bell Telephone Labor Inc Digital readout for displaying both long term and short term average values of a signal
FR2278120A1 (fr) * 1974-07-08 1976-02-06 Cit Alcatel Dispositif de designation d'un element d'une image
US3984827A (en) * 1974-09-19 1976-10-05 General Electric Company Beam repositioning circuitry for a cathode ray tube calligraphic display system
US4142146A (en) * 1975-07-07 1979-02-27 Nicolet Instrument Corporation Digital apparatus for waveform measurement
US4107739A (en) * 1977-08-22 1978-08-15 Cbs Inc. System utilizing integration and motion evaluation for reducing noise in video signal
JPS54127623A (en) * 1978-03-27 1979-10-03 Nec Corp S/n improving device for television video signal
US4222048A (en) * 1978-06-02 1980-09-09 The Boeing Company Three dimension graphic generator for displays with hidden lines
JPS5510228A (en) * 1978-07-05 1980-01-24 Nec Corp S/n improving unit for television video signal
US4263593A (en) * 1979-08-20 1981-04-21 Tektronix, Inc. Display interpolator employing a transversal filter for a digital oscilloscope
US4251754A (en) * 1979-09-04 1981-02-17 Tektronix, Inc. Digital oscilloscope with reduced jitter due to sample uncertainty

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2623093A1 (de) * 1976-03-17 1977-09-22 Hewlett Packard Co Verfahren und vorrichtung zum erzeugen einer anzeigemarke

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/80 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0287837A1 (fr) * 1987-03-24 1988-10-26 Tektronix, Inc. Contrôle de position de curseurs à des points spécifiques d'une onde affichée

Also Published As

Publication number Publication date
NL8005821A (nl) 1981-06-01
DE3040745A1 (de) 1981-08-27
JPS5931009B2 (ja) 1984-07-30
GB2064924A (en) 1981-06-17
GB2064924B (en) 1983-03-09
US4346333A (en) 1982-08-24
JPS5667762A (en) 1981-06-08
DE3040745C2 (de) 1983-01-20
CA1150358A (fr) 1983-07-19
FR2468914B1 (fr) 1984-04-13

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Legal Events

Date Code Title Description
ST Notification of lapse