GB2003708A - Display systems - Google Patents

Display systems

Info

Publication number
GB2003708A
GB2003708A GB7831500A GB7831500A GB2003708A GB 2003708 A GB2003708 A GB 2003708A GB 7831500 A GB7831500 A GB 7831500A GB 7831500 A GB7831500 A GB 7831500A GB 2003708 A GB2003708 A GB 2003708A
Authority
GB
United Kingdom
Prior art keywords
symbol
display unit
synchronised
generator
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
GB7831500A
Other versions
GB2003708B (en
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 GB7831500A priority Critical patent/GB2003708B/en
Publication of GB2003708A publication Critical patent/GB2003708A/en
Application granted granted Critical
Publication of GB2003708B publication Critical patent/GB2003708B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/20—Function-generator circuits, e.g. circle generators line or curve smoothing circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

A display system for providing a television-type raster display includes an analogue function generator (12) to produce a representation of voltage-time function corresponding to at least part of a symbol to be displayed and synchronised with the frame time-base generator (10) of an associated display unit (D). The system also includes means (14) to determine the start position in each scan line of a constituent element of the symbol part, and is synchronised with the line time- base generator (11) of the associated display unit, and means (15) to determine the length of each symbol element. Either such means (14) or (15) comprises a monostable device, or at least one voltage- controlled monostable device. An input of one of the means (14) or (15) is coupled to the output of the analogue function generator. In any arrangement, the means (15) to determine the length of each symbol element is connected between the other means (14) and the display unit 'D'. <IMAGE>
GB7831500A 1977-08-01 1978-07-28 Display systems Expired GB2003708B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7831500A GB2003708B (en) 1977-08-01 1978-07-28 Display systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3224777 1977-08-01
GB7831500A GB2003708B (en) 1977-08-01 1978-07-28 Display systems

Publications (2)

Publication Number Publication Date
GB2003708A true GB2003708A (en) 1979-03-14
GB2003708B GB2003708B (en) 1982-07-14

Family

ID=26261275

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7831500A Expired GB2003708B (en) 1977-08-01 1978-07-28 Display systems

Country Status (1)

Country Link
GB (1) GB2003708B (en)

Also Published As

Publication number Publication date
GB2003708B (en) 1982-07-14

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Legal Events

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