JPS5578335A - Crt display unit - Google Patents

Crt display unit

Info

Publication number
JPS5578335A
JPS5578335A JP15195978A JP15195978A JPS5578335A JP S5578335 A JPS5578335 A JP S5578335A JP 15195978 A JP15195978 A JP 15195978A JP 15195978 A JP15195978 A JP 15195978A JP S5578335 A JPS5578335 A JP S5578335A
Authority
JP
Japan
Prior art keywords
display
information
memory
crt
register
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
JP15195978A
Other languages
Japanese (ja)
Inventor
Masahiko Hida
Naoki Iwasaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15195978A priority Critical patent/JPS5578335A/en
Publication of JPS5578335A publication Critical patent/JPS5578335A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To move a screen in an arbitrary direction smoothly at a high speed and display information by using a shift signal generator, etc., of a joy stick, etc., while displaying a part of a large picture such as a map onto the CRT display equipment. CONSTITUTION:Display information is output from computer 10 to CRT controller 20 through I/O interface 11, and data information and display coordinate information of display information are input to CRT memory 22 and coordinate register 28 respectively through display controller 21, and memory scanner 23 takes out contents of memory 22 while referring to register 28, and information is displayed on CRT display equipment 30 through pattern generation circuit 24 and video signal generation circuit 25 according to the taken-out code. When a part of memory 22 to be displayed is input from shift signal generator 40 to register 28 through control circuit 27, it is compared with coordiante values of the upper limit and the lower limit by comparator circuit 29, and an interrupt signal is generated for computer 10 when it exceeds limits.
JP15195978A 1978-12-11 1978-12-11 Crt display unit Pending JPS5578335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15195978A JPS5578335A (en) 1978-12-11 1978-12-11 Crt display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15195978A JPS5578335A (en) 1978-12-11 1978-12-11 Crt display unit

Publications (1)

Publication Number Publication Date
JPS5578335A true JPS5578335A (en) 1980-06-12

Family

ID=15529943

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15195978A Pending JPS5578335A (en) 1978-12-11 1978-12-11 Crt display unit

Country Status (1)

Country Link
JP (1) JPS5578335A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5073771A (en) * 1988-03-02 1991-12-17 Hitachi, Ltd. Control method of zooming screen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5073771A (en) * 1988-03-02 1991-12-17 Hitachi, Ltd. Control method of zooming screen

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