GB1299409A - Improvements relating to beamed-intensity control systems for cathode-ray tubes - Google Patents

Improvements relating to beamed-intensity control systems for cathode-ray tubes

Info

Publication number
GB1299409A
GB1299409A GB2254070A GB2254070A GB1299409A GB 1299409 A GB1299409 A GB 1299409A GB 2254070 A GB2254070 A GB 2254070A GB 2254070 A GB2254070 A GB 2254070A GB 1299409 A GB1299409 A GB 1299409A
Authority
GB
United Kingdom
Prior art keywords
signal
traces
state
clock
stage
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
GB2254070A
Other languages
English (en)
Inventor
Brian Box English
Frederick Cross
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
Priority to GB2254070A priority Critical patent/GB1299409A/en
Priority to CA111,710A priority patent/CA946075A/en
Priority to DE19712122513 priority patent/DE2122513A1/de
Priority to FR7116593A priority patent/FR2092593A5/fr
Publication of GB1299409A publication Critical patent/GB1299409A/en
Priority to US05/392,440 priority patent/US3965389A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00Arrangements for displaying electric variables or waveforms
    • G01R13/20Cathode-ray oscilloscopes
    • G01R13/22Circuits therefor
    • G01R13/26Circuits for controlling the intensity of the electron beam or the colour of the display
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00Control 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
    • G09G1/002Intensity circuits
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00Control 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
    • G09G1/06Control 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
    • G09G1/08Control 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
    • G09G1/10Control 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)
  • Details Of Television Scanning (AREA)
  • Electron Beam Exposure (AREA)
GB2254070A 1970-05-09 1970-05-09 Improvements relating to beamed-intensity control systems for cathode-ray tubes Expired GB1299409A (en)

Priority Applications (5)

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
CA111,710A CA946075A (en) 1970-05-09 1971-04-29 Beamed-intensity control systems for cathode-ray tubes
DE19712122513 DE2122513A1 (de) 1970-05-09 1971-05-06 Vorrichtung zum Steuern der Strahlintensität von Kathodenstrahlröhren
FR7116593A FR2092593A5 (2) 1970-05-09 1971-05-07
US05/392,440 US3965389A (en) 1970-05-09 1973-08-29 Beamed-intensity control systems for cathode-ray tubes

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
GB1299409A true GB1299409A (en) 1972-12-13

Family

ID=10181065

Family Applications (1)

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

Country Status (4)

Country Link
CA (1) CA946075A (2)
DE (1) DE2122513A1 (2)
FR (1) FR2092593A5 (2)
GB (1) GB1299409A (2)

Also Published As

Publication number Publication date
CA946075A (en) 1974-04-23
FR2092593A5 (2) 1972-01-21
DE2122513A1 (de) 1971-11-25

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee