CA1018661A - Synchronizing system for refresh memory - Google Patents

Synchronizing system for refresh memory

Info

Publication number
CA1018661A
CA1018661A CA224,113A CA224113A CA1018661A CA 1018661 A CA1018661 A CA 1018661A CA 224113 A CA224113 A CA 224113A CA 1018661 A CA1018661 A CA 1018661A
Authority
CA
Canada
Prior art keywords
refresh memory
synchronizing system
synchronizing
refresh
memory
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
CA224,113A
Inventor
Peter D. Dickinson
Walter T. Blejwas (Jr.)
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.)
VYDEC
Original Assignee
VYDEC
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 VYDEC filed Critical VYDEC
Application granted granted Critical
Publication of CA1018661A publication Critical patent/CA1018661A/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
    • G09G5/12—Synchronisation between the display unit and other units, e.g. other display units, video-disc players
    • 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)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Multimedia (AREA)
  • Controls And Circuits For Display Device (AREA)
CA224,113A 1974-05-06 1975-04-08 Synchronizing system for refresh memory Expired CA1018661A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US467270A US3930250A (en) 1974-05-06 1974-05-06 Synchronizing system for refresh memory

Publications (1)

Publication Number Publication Date
CA1018661A true CA1018661A (en) 1977-10-04

Family

ID=23855056

Family Applications (1)

Application Number Title Priority Date Filing Date
CA224,113A Expired CA1018661A (en) 1974-05-06 1975-04-08 Synchronizing system for refresh memory

Country Status (2)

Country Link
US (1) US3930250A (en)
CA (1) CA1018661A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196431A (en) * 1977-02-28 1980-04-01 Honeywell Information Systems Inc. Synchronous raster scan apparatus for display device
US4325063A (en) * 1977-11-16 1982-04-13 Redactron Corporation Display device with variable capacity buffer memory
US4208723A (en) * 1977-11-28 1980-06-17 Gould Inc. Data point connection circuitry for use in display devices
US4342989A (en) * 1979-04-30 1982-08-03 Honeywell Information Systems Inc. Dual CRT control unit synchronization system
US4511892A (en) * 1982-06-25 1985-04-16 Sperry Corporation Variable refresh rate for stroke CRT displays
US4525674A (en) * 1982-07-28 1985-06-25 Reliance Electric Company Circuit for synchronizing a switching power supply to a load clock

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3548402A (en) * 1966-10-10 1970-12-15 Sanders Associates Inc Adaptive timing technique
US3598911A (en) * 1968-09-27 1971-08-10 Rca Corp Circulating memory-refreshed display system
US3742484A (en) * 1971-12-28 1973-06-26 Xerox Corp Character generating apparatus employing bit stream length correction
US3786482A (en) * 1972-03-13 1974-01-15 Lexitron Corp Apparatus for generating and displaying characters by tracing continuous strokes

Also Published As

Publication number Publication date
US3930250A (en) 1975-12-30

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