JPS5680733A - Coordinate input device - Google Patents
Coordinate input deviceInfo
- Publication number
- JPS5680733A JPS5680733A JP15739079A JP15739079A JPS5680733A JP S5680733 A JPS5680733 A JP S5680733A JP 15739079 A JP15739079 A JP 15739079A JP 15739079 A JP15739079 A JP 15739079A JP S5680733 A JPS5680733 A JP S5680733A
- Authority
- JP
- Japan
- Prior art keywords
- coordinate
- signal
- coordinate information
- oscillator
- constitution
- 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
Abstract
PURPOSE: To eliminate influence of noises of a short break, chattering, etc., without modifying the constitution of a coordinate information input part, by using a peak value, detected within a prescribed time width, as current coordinate information.
CONSTITUTION: On resistance board 12 connecting with diodes 24 and 26, a pressure-sensitive, conductive rubber sheet and flexible conductor 16 connected to point 32a of coordinate information detecting circuit 32 are mounted and a bipolar rec tangular wave signal of tens Hz is applied from oscillator 28. When this signal is at a positive voltage, an X-directional potential gradient is obtained and when at a negative voltage, a Y-directional potential gradient is obtained. The value of the X coordinate varying with time is detected as a current peak value by peak detecting circuit 36 in every cycle of the output of oscillator 28 and it is sampled and held by sample holding circuit 38 and smoothed by low-pass filter 40 to obtain the X coordinate signal. Similarly, Y coordinate signal Voy is also obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15739079A JPS5680733A (en) | 1979-12-06 | 1979-12-06 | Coordinate input device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15739079A JPS5680733A (en) | 1979-12-06 | 1979-12-06 | Coordinate input device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5680733A true JPS5680733A (en) | 1981-07-02 |
Family
ID=15648584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15739079A Pending JPS5680733A (en) | 1979-12-06 | 1979-12-06 | Coordinate input device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5680733A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58105390A (en) * | 1981-12-16 | 1983-06-23 | Nec Corp | Coordinate input device |
JPS6381520A (en) * | 1986-09-25 | 1988-04-12 | Pentel Kk | Coordinate signal detector |
JPS63140320A (en) * | 1983-05-23 | 1988-06-11 | インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン | Position detection for power sensing type data input unit |
-
1979
- 1979-12-06 JP JP15739079A patent/JPS5680733A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58105390A (en) * | 1981-12-16 | 1983-06-23 | Nec Corp | Coordinate input device |
JPS63140320A (en) * | 1983-05-23 | 1988-06-11 | インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン | Position detection for power sensing type data input unit |
JPH0315206B2 (en) * | 1983-05-23 | 1991-02-28 | Intaanashonaru Bijinesu Mashiinzu Corp | |
JPS6381520A (en) * | 1986-09-25 | 1988-04-12 | Pentel Kk | Coordinate signal detector |
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