JPS54143026A - Cathode-ray display tube control circuit - Google Patents
Cathode-ray display tube control circuitInfo
- Publication number
- JPS54143026A JPS54143026A JP5167078A JP5167078A JPS54143026A JP S54143026 A JPS54143026 A JP S54143026A JP 5167078 A JP5167078 A JP 5167078A JP 5167078 A JP5167078 A JP 5167078A JP S54143026 A JPS54143026 A JP S54143026A
- Authority
- JP
- Japan
- Prior art keywords
- ram
- circuit
- stored
- control circuit
- generator
- 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.)
- Granted
Links
Landscapes
- Digital Computer Display Output (AREA)
Abstract
PURPOSE: To simplify a circuit constitution by simplifying the wiring between a computer and this circuit and restraining the number of pulse generator circuits to one in the control circuit which displays processing results of the central arithmetic processing part with characters, symbols, or patterns.
CONSTITUTION: RAM 27 where character display data from address multiplexer 26 designated by horizontal and vertical address counters 23 and 25 is stored and RAM 37 where pattern displaying data of address multiplexer 36 designated by horizontal and vertical address counters 23 and 35 is stored are provided. Further, character generator 28 which generates the character code corresponding to individual data stored in RAM 27 and video signal generator circuit 33 which generates video signals according to the code generated by generator 28 and data of RAM 37 are provided. Then, gate circuits 40 and 41 where outputs of counters 23 and 25 are inputted are provided, and outouts of circuits 40 and 41 are supplied to signal generator circuit 33.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5167078A JPS54143026A (en) | 1978-04-28 | 1978-04-28 | Cathode-ray display tube control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5167078A JPS54143026A (en) | 1978-04-28 | 1978-04-28 | Cathode-ray display tube control circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54143026A true JPS54143026A (en) | 1979-11-07 |
JPS6411947B2 JPS6411947B2 (en) | 1989-02-27 |
Family
ID=12893306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5167078A Granted JPS54143026A (en) | 1978-04-28 | 1978-04-28 | Cathode-ray display tube control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54143026A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58123583A (en) * | 1982-01-19 | 1983-07-22 | 日本電気株式会社 | Information processor |
JPS58187988A (en) * | 1982-04-28 | 1983-11-02 | 株式会社日立製作所 | Character graphic display |
-
1978
- 1978-04-28 JP JP5167078A patent/JPS54143026A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58123583A (en) * | 1982-01-19 | 1983-07-22 | 日本電気株式会社 | Information processor |
JPS58187988A (en) * | 1982-04-28 | 1983-11-02 | 株式会社日立製作所 | Character graphic display |
JPS6365153B2 (en) * | 1982-04-28 | 1988-12-14 |
Also Published As
Publication number | Publication date |
---|---|
JPS6411947B2 (en) | 1989-02-27 |
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