JPS5567827A - Keyboard input device - Google Patents
Keyboard input deviceInfo
- Publication number
- JPS5567827A JPS5567827A JP14114478A JP14114478A JPS5567827A JP S5567827 A JPS5567827 A JP S5567827A JP 14114478 A JP14114478 A JP 14114478A JP 14114478 A JP14114478 A JP 14114478A JP S5567827 A JPS5567827 A JP S5567827A
- Authority
- JP
- Japan
- Prior art keywords
- key
- keys
- time
- controllability
- register
- 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
- Input From Keyboards Or The Like (AREA)
Abstract
PURPOSE: To increase the key controllability by securing the sequence of the keys with no double keying in case plural number of the keys are hit virtually at one time and thus handling the key data effectively.
CONSTITUTION: In case plural number of keys are hit virtually at one time, control memory 8 reads out the coordinates of the 1st key from key matrix part 12 with the control given to memorize the key coordinates temporarily in register 13. At the same time, FF10 is set, and the pulses are inhibited from pulse generator circuit 1 via AND gate 11 to stop the operation of hexadecimal counter 2. After this, part 8 transfers the information of register 13 to memory 9 for memorization. Then the FF is reset with gate 11 opened, and the counting action is restarted for counter 2. At the same time, the reading is given for the next key. Thus the sequence of the key is kept with no double keying to handle the key data effectively. As a result, the key controllability can be increased.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14114478A JPS5567827A (en) | 1978-11-17 | 1978-11-17 | Keyboard input device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14114478A JPS5567827A (en) | 1978-11-17 | 1978-11-17 | Keyboard input device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5567827A true JPS5567827A (en) | 1980-05-22 |
Family
ID=15285179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14114478A Pending JPS5567827A (en) | 1978-11-17 | 1978-11-17 | Keyboard input device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5567827A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58166434A (en) * | 1982-03-29 | 1983-10-01 | Fujitsu Ltd | Concurrent operation protecting device of console key |
JPH02105913A (en) * | 1988-10-14 | 1990-04-18 | Omron Tateisi Electron Co | Terminal device for key input |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5027439A (en) * | 1973-07-10 | 1975-03-20 | ||
JPS5192986A (en) * | 1975-02-12 | 1976-08-14 | ||
JPS53932A (en) * | 1976-06-25 | 1978-01-07 | Toshiba Corp | Encoder circuit |
JPS53126216A (en) * | 1977-04-11 | 1978-11-04 | Casio Comput Co Ltd | Key input circuit |
-
1978
- 1978-11-17 JP JP14114478A patent/JPS5567827A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5027439A (en) * | 1973-07-10 | 1975-03-20 | ||
JPS5192986A (en) * | 1975-02-12 | 1976-08-14 | ||
JPS53932A (en) * | 1976-06-25 | 1978-01-07 | Toshiba Corp | Encoder circuit |
JPS53126216A (en) * | 1977-04-11 | 1978-11-04 | Casio Comput Co Ltd | Key input circuit |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58166434A (en) * | 1982-03-29 | 1983-10-01 | Fujitsu Ltd | Concurrent operation protecting device of console key |
JPH02105913A (en) * | 1988-10-14 | 1990-04-18 | Omron Tateisi Electron Co | Terminal device for key input |
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