JPS54120536A - Line texture generating circuit of display unit - Google Patents
Line texture generating circuit of display unitInfo
- Publication number
- JPS54120536A JPS54120536A JP2813478A JP2813478A JPS54120536A JP S54120536 A JPS54120536 A JP S54120536A JP 2813478 A JP2813478 A JP 2813478A JP 2813478 A JP2813478 A JP 2813478A JP S54120536 A JPS54120536 A JP S54120536A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- line
- data
- signals
- dda
- 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 make it possible to generate extremely many line patterns and to improve reliability by constituting a circuit easily by combining inexpensive logic elements, by obtaining sequential signals by allowing a DDA to compute picture data.
CONSTITUTION: In the process that sequential data are outputted from DDA (Digital Differential Analyzer) circuit 2, counter 10 of texture generating circuit 6 is advanced by X and Y axes increment and decrement signals (a) and (b) and repetitive operation at the address of ROM8 is done to supply write control circuit 3 with selected-9 one out of line pattern intermittent signals stored 8. Namely, if the signal from selector circuit 9 is "0", line data outputted are written into picture memory 4 and when "1", they are not under control 3; in this way, data stored in memory 4 are displayed by monitor circuit 5, so that a line will be drawn in an assigned line pattern.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2813478A JPS54120536A (en) | 1978-03-10 | 1978-03-10 | Line texture generating circuit of display unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2813478A JPS54120536A (en) | 1978-03-10 | 1978-03-10 | Line texture generating circuit of display unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54120536A true JPS54120536A (en) | 1979-09-19 |
Family
ID=12240291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2813478A Pending JPS54120536A (en) | 1978-03-10 | 1978-03-10 | Line texture generating circuit of display unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54120536A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS589194A (en) * | 1981-07-10 | 1983-01-19 | 株式会社サイラック | Color texture generation circuit |
-
1978
- 1978-03-10 JP JP2813478A patent/JPS54120536A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS589194A (en) * | 1981-07-10 | 1983-01-19 | 株式会社サイラック | Color texture generation circuit |
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