CA946075A - Beamed-intensity control systems for cathode-ray tubes - Google Patents

Beamed-intensity control systems for cathode-ray tubes

Info

Publication number
CA946075A
CA946075A CA111,710A CA111710A CA946075A CA 946075 A CA946075 A CA 946075A CA 111710 A CA111710 A CA 111710A CA 946075 A CA946075 A CA 946075A
Authority
CA
Canada
Prior art keywords
beamed
cathode
control systems
ray tubes
intensity control
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.)
Expired
Application number
CA111,710A
Other versions
CA111710S (en
Inventor
Frederick Cross
Brain B. English
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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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 Ferranti PLC filed Critical Ferranti PLC
Application granted granted Critical
Publication of CA946075A publication Critical patent/CA946075A/en
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
    • G01R13/26—Circuits for controlling the intensity of the electron beam or the colour of the display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/002—Intensity circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/06—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
    • G09G1/08—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam directly tracing characters, the information to be displayed controlling the deflection and the intensity as a function of time in two spatial co-ordinates, e.g. according to a cartesian co-ordinate system
    • G09G1/10—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam directly tracing characters, the information to be displayed controlling the deflection and the intensity as a function of time in two spatial co-ordinates, e.g. according to a cartesian co-ordinate system the deflection signals being produced by essentially digital means, e.g. incrementally

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Electron Beam Exposure (AREA)
  • Details Of Television Scanning (AREA)
CA111,710A 1970-05-09 1971-04-29 Beamed-intensity control systems for cathode-ray tubes Expired CA946075A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2254070A GB1299409A (en) 1970-05-09 1970-05-09 Improvements relating to beamed-intensity control systems for cathode-ray tubes

Publications (1)

Publication Number Publication Date
CA946075A true CA946075A (en) 1974-04-23

Family

ID=10181065

Family Applications (1)

Application Number Title Priority Date Filing Date
CA111,710A Expired CA946075A (en) 1970-05-09 1971-04-29 Beamed-intensity control systems for cathode-ray tubes

Country Status (4)

Country Link
CA (1) CA946075A (en)
DE (1) DE2122513A1 (en)
FR (1) FR2092593A5 (en)
GB (1) GB1299409A (en)

Also Published As

Publication number Publication date
GB1299409A (en) 1972-12-13
FR2092593A5 (en) 1972-01-21
DE2122513A1 (en) 1971-11-25

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