JPS5448126A - Color character display unit - Google Patents
Color character display unitInfo
- Publication number
- JPS5448126A JPS5448126A JP11500477A JP11500477A JPS5448126A JP S5448126 A JPS5448126 A JP S5448126A JP 11500477 A JP11500477 A JP 11500477A JP 11500477 A JP11500477 A JP 11500477A JP S5448126 A JPS5448126 A JP S5448126A
- Authority
- JP
- Japan
- Prior art keywords
- color
- information
- dot pattern
- display
- line
- 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
Links
Abstract
PURPOSE: To ensure a color display without lowering the display efficiency of the display screen by providing a color buffer in order to prevent the color information from occupying the display area of the CRT screen as well as to ensure setting of the reading time of the color information between the lines.
CONSTITUTION: Processor 13 changes the supplied character code information to the character dot pattern information through pattern memory 12 and then trasmits the dot pattern information to refresh memory REM11 along with the color information. The color information is memorized in the first scanning line of each line in RFM11, and the dot pattern information is memorized in the second to 32nd scanning lines of each line respectively. Under these conditions, the color information corresponding to all the first scanning regiouns of the first line of RFM are memorized in sequence in color buffer 15 based on the display scan of CRT3. After this, the character dot pattern information of RFM11 is combined via gate 6 to the color information of color buffer 15 corresponding to the dot pattern information to be displayed on CRT3. This action is repeated for the second and subsequent lines
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11500477A JPS5448126A (en) | 1977-09-24 | 1977-09-24 | Color character display unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11500477A JPS5448126A (en) | 1977-09-24 | 1977-09-24 | Color character display unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5448126A true JPS5448126A (en) | 1979-04-16 |
Family
ID=14651901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11500477A Pending JPS5448126A (en) | 1977-09-24 | 1977-09-24 | Color character display unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5448126A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56102885A (en) * | 1980-01-21 | 1981-08-17 | Hitachi Ltd | Color display unit |
JPS5860788A (en) * | 1981-10-07 | 1983-04-11 | 日本電気株式会社 | Character display control system |
JP2008046486A (en) * | 2006-08-18 | 2008-02-28 | Ricoh Co Ltd | Display control device and image forming device |
-
1977
- 1977-09-24 JP JP11500477A patent/JPS5448126A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56102885A (en) * | 1980-01-21 | 1981-08-17 | Hitachi Ltd | Color display unit |
JPS6361673B2 (en) * | 1980-01-21 | 1988-11-29 | ||
JPS5860788A (en) * | 1981-10-07 | 1983-04-11 | 日本電気株式会社 | Character display control system |
JP2008046486A (en) * | 2006-08-18 | 2008-02-28 | Ricoh Co Ltd | Display control device and image forming device |
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