JPS55112642A - Display unit - Google Patents

Display unit

Info

Publication number
JPS55112642A
JPS55112642A JP1966479A JP1966479A JPS55112642A JP S55112642 A JPS55112642 A JP S55112642A JP 1966479 A JP1966479 A JP 1966479A JP 1966479 A JP1966479 A JP 1966479A JP S55112642 A JPS55112642 A JP S55112642A
Authority
JP
Japan
Prior art keywords
display
control
address
timing
magnified
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
JP1966479A
Other languages
Japanese (ja)
Inventor
Nagaharu Hamada
Yoshiki Kobayashi
Yoji Nishio
Seiji Konaka
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 JP1966479A priority Critical patent/JPS55112642A/en
Publication of JPS55112642A publication Critical patent/JPS55112642A/en
Pending legal-status Critical Current

Links

Landscapes

  • Image Processing (AREA)
  • Digital Computer Display Output (AREA)

Abstract

PURPOSE:To display the rectangular block of arbitrary shape on the screen to other part with an arbitrary magnification, by setting the control perameters required for magnified display, and controlling the read-out address of the refresh-memory and parallel-series converted timing. CONSTITUTION:The magnification display control circuit 800 to perform conversion control so that it is suited to magnified display for the display address 610 being the output of the timing generation circuit 600 and for the vdieo control timing 620, is added and the control parameters required for magnified display are set via the address bus 110 and data bus 120 from the microprocessor. Thus, the display address 610' for magnified display and video timing 620' are generated. Accordingly, an arbitrary part on the screen requiring magnified display can be displayed on other part on the screen with an arbitrary magnification.
JP1966479A 1979-02-23 1979-02-23 Display unit Pending JPS55112642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1966479A JPS55112642A (en) 1979-02-23 1979-02-23 Display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1966479A JPS55112642A (en) 1979-02-23 1979-02-23 Display unit

Publications (1)

Publication Number Publication Date
JPS55112642A true JPS55112642A (en) 1980-08-30

Family

ID=12005501

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1966479A Pending JPS55112642A (en) 1979-02-23 1979-02-23 Display unit

Country Status (1)

Country Link
JP (1) JPS55112642A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58115482A (en) * 1981-12-28 1983-07-09 株式会社島津製作所 Still and animation image display
JPS607477A (en) * 1983-06-27 1985-01-16 ヤマハ株式会社 Image display
JPS6021088A (en) * 1983-07-15 1985-02-02 株式会社日立製作所 Crt controller

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147830A (en) * 1974-05-17 1975-11-27
JPS5290232A (en) * 1976-01-19 1977-07-29 Nugraphics Inc Method of generating graphic display and computer graphic display unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147830A (en) * 1974-05-17 1975-11-27
JPS5290232A (en) * 1976-01-19 1977-07-29 Nugraphics Inc Method of generating graphic display and computer graphic display unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58115482A (en) * 1981-12-28 1983-07-09 株式会社島津製作所 Still and animation image display
JPS607477A (en) * 1983-06-27 1985-01-16 ヤマハ株式会社 Image display
JPS6021088A (en) * 1983-07-15 1985-02-02 株式会社日立製作所 Crt controller

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