JPS55147731A - Electronic switch detecting depressed position - Google Patents
Electronic switch detecting depressed positionInfo
- Publication number
- JPS55147731A JPS55147731A JP5551879A JP5551879A JPS55147731A JP S55147731 A JPS55147731 A JP S55147731A JP 5551879 A JP5551879 A JP 5551879A JP 5551879 A JP5551879 A JP 5551879A JP S55147731 A JPS55147731 A JP S55147731A
- Authority
- JP
- Japan
- Prior art keywords
- depressed
- key top
- depressed position
- pressure sensing
- position information
- 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)
- Push-Button Switches (AREA)
- Electronic Switches (AREA)
Abstract
PURPOSE: To enable to judge the depressed position surely, by using a few pressure sensing elements, by comparing the coordinate of the depressed position obtained through the operation of the partial press signal of the pressure sensing element depressed with the position information located on the key top position information memory.
CONSTITUTION: A plurality of key tops 2 are displayed on the keyboard panel 1, and the pressure sensing elements DET1, 2, 3 are provided on different position under this panel 1. When an arbitrary key top 2 is depressed, the partial pressure signal produced to the elements DET1, 2, 3 is respectively amplified AMP1, 2, 3 and fed to the operation circuit OP after A/D conversion. Futher, the coordinate of the depressed position is operated at the circuit OP, this operation output and the key top position information stored in the key top position information memory MK are compered, and the depressed position is judged by it. Accordingly, it is not necessary to correspond the key top 2 and the element 3 by one to one, and the depressed position can surely be judged by using a few pressure sensing elements.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5551879A JPS55147731A (en) | 1979-05-07 | 1979-05-07 | Electronic switch detecting depressed position |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5551879A JPS55147731A (en) | 1979-05-07 | 1979-05-07 | Electronic switch detecting depressed position |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55147731A true JPS55147731A (en) | 1980-11-17 |
Family
ID=13000913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5551879A Pending JPS55147731A (en) | 1979-05-07 | 1979-05-07 | Electronic switch detecting depressed position |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55147731A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6030037U (en) * | 1983-08-02 | 1985-02-28 | アルプス電気株式会社 | X-Y direction input device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4849332A (en) * | 1971-10-21 | 1973-07-12 |
-
1979
- 1979-05-07 JP JP5551879A patent/JPS55147731A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4849332A (en) * | 1971-10-21 | 1973-07-12 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6030037U (en) * | 1983-08-02 | 1985-02-28 | アルプス電気株式会社 | X-Y direction input device |
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