FR2257897A1 - Identification of curves on display screens - is effected by intensity of colour variation at given time instant - Google Patents
Identification of curves on display screens - is effected by intensity of colour variation at given time instantInfo
- Publication number
- FR2257897A1 FR2257897A1 FR7438773A FR7438773A FR2257897A1 FR 2257897 A1 FR2257897 A1 FR 2257897A1 FR 7438773 A FR7438773 A FR 7438773A FR 7438773 A FR7438773 A FR 7438773A FR 2257897 A1 FR2257897 A1 FR 2257897A1
- Authority
- FR
- France
- Prior art keywords
- identification
- curves
- effected
- intensity
- given time
- 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.)
- Withdrawn
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
- G01R13/305—Circuits for inserting reference markers, e.g. for timing, for calibrating, for frequency marking for time marking
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Slot Machines And Peripheral Devices (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
Identification is effected by varying the light intensity or colour of the curves and at the same time retaining the quality of reproduction. The width of the identification may be chosen within relatively wide limits. A screen on which a number of curves are displayed has identification numbers (1 to n) placed along the upper side. Electronic circuits increase the intensity of the curve at the instant of time corresponding to the position of the trace number at the top of the screen. Identification is effected by aligning the trace number, by eye, with the identification mark.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742401397 DE2401397A1 (en) | 1974-01-12 | 1974-01-12 | METHOD OF MARKING MEASUREMENT CURVES DISPLAYED ON THE SCREEN OF A VISUALIZER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2257897A1 true FR2257897A1 (en) | 1975-08-08 |
Family
ID=5904654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7438773A Withdrawn FR2257897A1 (en) | 1974-01-12 | 1974-11-26 | Identification of curves on display screens - is effected by intensity of colour variation at given time instant |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE822580A (en) |
| DE (1) | DE2401397A1 (en) |
| FR (1) | FR2257897A1 (en) |
| NL (1) | NL7414235A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4092567A (en) * | 1976-03-17 | 1978-05-30 | Hewlett-Packard Company | Method and circuit for generating diamond markers |
| US4072851A (en) | 1976-03-26 | 1978-02-07 | Norland Corporation | Waveform measuring instrument with resident programmed processor for controlled waveform display and waveform data reduction and calculation |
| JPS587564A (en) * | 1981-07-03 | 1983-01-17 | テクトロニクス・インコ−ポレイテツド | Measuring device for wave-form |
| US4918382A (en) * | 1989-03-20 | 1990-04-17 | Tektronix, Inc. | Method for distinguishing between real and spurious responses in a spectrum analyzer |
-
1974
- 1974-01-12 DE DE19742401397 patent/DE2401397A1/en active Pending
- 1974-10-31 NL NL7414235A patent/NL7414235A/en unknown
- 1974-11-26 FR FR7438773A patent/FR2257897A1/en not_active Withdrawn
- 1974-11-26 BE BE150840A patent/BE822580A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2401397A1 (en) | 1975-07-24 |
| NL7414235A (en) | 1975-07-15 |
| BE822580A (en) | 1975-03-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |