JPS6470795A - Data reading of display unit - Google Patents
Data reading of display unitInfo
- Publication number
- JPS6470795A JPS6470795A JP22769487A JP22769487A JPS6470795A JP S6470795 A JPS6470795 A JP S6470795A JP 22769487 A JP22769487 A JP 22769487A JP 22769487 A JP22769487 A JP 22769487A JP S6470795 A JPS6470795 A JP S6470795A
- Authority
- JP
- Japan
- Prior art keywords
- latch
- signal
- read
- digit
- terminal
- 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
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
PURPOSE: To simplify wiring with only two wires for a display unit and control signal by inputting a latch control signal authorized read-in to a latch selecting input terminal of a nose digit of display and transmitting one by one to an end digit matching timing of the latch signal. CONSTITUTION: N pieces of display DIS are stood in line, when the latch control signal LC is inputted into a latch selecting terminal of the nose digit of display, a DIS1 is allowed to read-in, synchronized the signal LC of a latch terminal LSI, and information is read-in and latched from a bus DB. Next, the signal LC is outputted to the next digit of terminal a LSI2 from a latch selecting output terminal LSO of itself. The presence of the signal LC from the DIS1 is monitored with a DIS2, which is synchronized in receiving the LC, and information from the bus DB is read-in and latched. Hereafter likewise, the signal LC is transmitted to the end digit DISN, and information is successively read-in. Therefore, wiring from a controller to the DIS is formed with only two wires, regardless of the number of the DIS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22769487A JPS6470795A (en) | 1987-09-10 | 1987-09-10 | Data reading of display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22769487A JPS6470795A (en) | 1987-09-10 | 1987-09-10 | Data reading of display unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6470795A true JPS6470795A (en) | 1989-03-16 |
Family
ID=16864880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22769487A Pending JPS6470795A (en) | 1987-09-10 | 1987-09-10 | Data reading of display unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6470795A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07334115A (en) * | 1994-06-08 | 1995-12-22 | Nec Corp | Method of writing display data in fluorescent display tube and device therefor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6086594A (en) * | 1983-10-19 | 1985-05-16 | キヤノン株式会社 | Display unit |
| JPS62163097A (en) * | 1986-01-13 | 1987-07-18 | セイコーエプソン株式会社 | Liquid crystal driving element |
-
1987
- 1987-09-10 JP JP22769487A patent/JPS6470795A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6086594A (en) * | 1983-10-19 | 1985-05-16 | キヤノン株式会社 | Display unit |
| JPS62163097A (en) * | 1986-01-13 | 1987-07-18 | セイコーエプソン株式会社 | Liquid crystal driving element |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07334115A (en) * | 1994-06-08 | 1995-12-22 | Nec Corp | Method of writing display data in fluorescent display tube and device therefor |
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