JPS57201932A - Cathode-ray tube display device - Google Patents

Cathode-ray tube display device

Info

Publication number
JPS57201932A
JPS57201932A JP8575581A JP8575581A JPS57201932A JP S57201932 A JPS57201932 A JP S57201932A JP 8575581 A JP8575581 A JP 8575581A JP 8575581 A JP8575581 A JP 8575581A JP S57201932 A JPS57201932 A JP S57201932A
Authority
JP
Japan
Prior art keywords
display
picture
checking
picture signal
signal
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
JP8575581A
Other languages
Japanese (ja)
Other versions
JPS6252892B2 (en
Inventor
Masaharu Hanatsumi
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8575581A priority Critical patent/JPS57201932A/en
Publication of JPS57201932A publication Critical patent/JPS57201932A/en
Publication of JPS6252892B2 publication Critical patent/JPS6252892B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G06F3/1431—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display using a single graphics controller
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G06F3/1438—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display using more than one graphics controller

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Graphics (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Digital Computer Display Output (AREA)

Abstract

PURPOSE:To obtain highly reliable display picture free from error operation by generating a video signal for a checking picture synchronously with a picture signal for a picture to be checked and comparing the video signal with a display picture signal. CONSTITUTION:Picture information to be displayed on respective cathode-ray tube (CRT) display dvices 7-11 through an interface bus 13 from a central processing unit 1 are inputted to display controlling devices 2-6. The display controlling devices 2-6 convert these picture information into video signals to display the signals on the CRT display devices 7-11. The video signals outputted to the CRT display devices 7-11 are inputted to a checking display controlling device 15 and a checking picture signal and a hard copying picture signal are also inputted to the checking display controlling device 15 through the interface bus 13. The checking picture signal and display picture signal are compared by a picture signal comparison controlling circuit. Display pictures are checked by updating the CRT display devices 7-11 cyclically.
JP8575581A 1981-06-05 1981-06-05 Cathode-ray tube display device Granted JPS57201932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8575581A JPS57201932A (en) 1981-06-05 1981-06-05 Cathode-ray tube display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8575581A JPS57201932A (en) 1981-06-05 1981-06-05 Cathode-ray tube display device

Publications (2)

Publication Number Publication Date
JPS57201932A true JPS57201932A (en) 1982-12-10
JPS6252892B2 JPS6252892B2 (en) 1987-11-07

Family

ID=13867667

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8575581A Granted JPS57201932A (en) 1981-06-05 1981-06-05 Cathode-ray tube display device

Country Status (1)

Country Link
JP (1) JPS57201932A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59212885A (en) * 1983-05-09 1984-12-01 デイジタル・イクイプメント・コ−ポレ−シヨン System of diagnosing digital computer
JPS6037593A (en) * 1983-06-30 1985-02-26 テクトロニツクス・インコーポレイテツド Diagnosing equipment for raster scanning type display

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59212885A (en) * 1983-05-09 1984-12-01 デイジタル・イクイプメント・コ−ポレ−シヨン System of diagnosing digital computer
JPH0310320B2 (en) * 1983-05-09 1991-02-13 Digital Equipment Corp
JPS6037593A (en) * 1983-06-30 1985-02-26 テクトロニツクス・インコーポレイテツド Diagnosing equipment for raster scanning type display
JPH0251515B2 (en) * 1983-06-30 1990-11-07 Tektronix Inc

Also Published As

Publication number Publication date
JPS6252892B2 (en) 1987-11-07

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