JPS6457330A - Multiwindow display system - Google Patents

Multiwindow display system

Info

Publication number
JPS6457330A
JPS6457330A JP62213028A JP21302887A JPS6457330A JP S6457330 A JPS6457330 A JP S6457330A JP 62213028 A JP62213028 A JP 62213028A JP 21302887 A JP21302887 A JP 21302887A JP S6457330 A JPS6457330 A JP S6457330A
Authority
JP
Japan
Prior art keywords
frame buffer
window
display system
selector
constituted
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.)
Pending
Application number
JP62213028A
Other languages
Japanese (ja)
Inventor
Jiro Kinoshita
Fumio Kawamura
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.)
Fanuc Corp
Original Assignee
Fanuc Corp
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 Fanuc Corp filed Critical Fanuc Corp
Priority to JP62213028A priority Critical patent/JPS6457330A/en
Publication of JPS6457330A publication Critical patent/JPS6457330A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To reduce overhead by forming a window selecting table and selecting a window at real time simultaneously with memory reading for refreshing a screen. CONSTITUTION:A multiwindow display system is constituted of a window selecting table 21 to be a control means, frame buffer memories 22, a selector 23, and a CRT display 24. A bit map memory is constituted of n frame buffer memories 22 and said window 21. At the time of displaying data on the CRT display 24, said table 21 corresponds to a pixel address of the frame buffer 22 at the rate of one to one and stores information indicating which frame buffer 22 for a certain pixel is to be used for displaying its contents. The contents of respective buffer memories are sent to the selector 23. Since data can be displayed only by writing them in the frame buffer 22, overhead can be reduced.
JP62213028A 1987-08-28 1987-08-28 Multiwindow display system Pending JPS6457330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62213028A JPS6457330A (en) 1987-08-28 1987-08-28 Multiwindow display system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62213028A JPS6457330A (en) 1987-08-28 1987-08-28 Multiwindow display system

Publications (1)

Publication Number Publication Date
JPS6457330A true JPS6457330A (en) 1989-03-03

Family

ID=16632312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62213028A Pending JPS6457330A (en) 1987-08-28 1987-08-28 Multiwindow display system

Country Status (1)

Country Link
JP (1) JPS6457330A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02287613A (en) * 1989-04-28 1990-11-27 Fuji Xerox Co Ltd Data processor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61238089A (en) * 1985-04-15 1986-10-23 三菱電機株式会社 Multiwindow controller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61238089A (en) * 1985-04-15 1986-10-23 三菱電機株式会社 Multiwindow controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02287613A (en) * 1989-04-28 1990-11-27 Fuji Xerox Co Ltd Data processor

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