JPS5487020A - Key input system - Google Patents
Key input systemInfo
- Publication number
- JPS5487020A JPS5487020A JP15474377A JP15474377A JPS5487020A JP S5487020 A JPS5487020 A JP S5487020A JP 15474377 A JP15474377 A JP 15474377A JP 15474377 A JP15474377 A JP 15474377A JP S5487020 A JPS5487020 A JP S5487020A
- Authority
- JP
- Japan
- Prior art keywords
- key
- keys
- signal
- cleared
- written
- 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
- Electric Clocks (AREA)
- Calculators And Similar Devices (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
PURPOSE: To realize a key input system in which the operation signal of the specified kay among plural number of keys can be accepted before the other keys are switched on and the input signal is cleared and which can carry out the necessary processes following the acceptance of the operation signal.
CONSTITUTION: With push of start key ST of the stopwatch, counter 10 is reset by control signal C2 to start the counting. The count value is sent to arithmetic circuit 3 by control signal C2 to be written into register M1 of RAM4. Then the contents are added together between M1 and M2 to be written into M2 and then to reset counter 10. With repetition of the above processes, the timing information is memorized in M2. Here, the ST key is specified, and thus the input signal of key St can be accepted even before the input signals of other keys are cleared.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52154743A JPS605007B2 (en) | 1977-12-22 | 1977-12-22 | Key input method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52154743A JPS605007B2 (en) | 1977-12-22 | 1977-12-22 | Key input method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5487020A true JPS5487020A (en) | 1979-07-11 |
JPS605007B2 JPS605007B2 (en) | 1985-02-07 |
Family
ID=15590937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52154743A Expired JPS605007B2 (en) | 1977-12-22 | 1977-12-22 | Key input method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS605007B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61197603U (en) * | 1985-05-31 | 1986-12-10 |
-
1977
- 1977-12-22 JP JP52154743A patent/JPS605007B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS605007B2 (en) | 1985-02-07 |
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