JPS61189340U - - Google Patents
Info
- Publication number
- JPS61189340U JPS61189340U JP1985070511U JP7051185U JPS61189340U JP S61189340 U JPS61189340 U JP S61189340U JP 1985070511 U JP1985070511 U JP 1985070511U JP 7051185 U JP7051185 U JP 7051185U JP S61189340 U JPS61189340 U JP S61189340U
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- pressure
- electrode sheet
- shield
- resistive film
- 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
- 239000000758 substrate Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Description
第１図Ａ及びＢは本考案による感圧式座標入力
装置の構成図及びその等価回路図、第２図は従来
の感圧式座標入力装置、第３図は第２図の等価回
路、第４図Ａ及びＢは従来の別の感圧式座標入力
装置の構成図及びその等価回路図である。
１……基板、２……抵抗膜、３……抵抗端子板
、４……電源、５……感圧ゴム、６……電極シー
ト、７……第１シールドシート、８……オペアン
プ、９……抵抗膜の等価抵抗、１０……感圧ゴム
及び電極シートの合成抵抗、１１……シールドシ
ートと電極シート間の分布容量、１２……人体と
シールドシート間の容量、１３……ノイズ信号源
、１４……オペアンプ、１５……第２のシールド
シート、１６……第１及び第２のシールドシート
間の分布容量。
Figures 1A and B are block diagrams and equivalent circuit diagrams of a pressure-sensitive coordinate input device according to the present invention, Figure 2 is a conventional pressure-sensitive coordinate input device, Figure 3 is an equivalent circuit of Figure 2, and Figure 4 A and B are a configuration diagram and an equivalent circuit diagram of another conventional pressure-sensitive coordinate input device. DESCRIPTION OF SYMBOLS 1... Substrate, 2... Resistance film, 3... Resistance terminal board, 4... Power source, 5... Pressure sensitive rubber, 6... Electrode sheet, 7... First shield sheet, 8... Operational amplifier, 9 ... Equivalent resistance of the resistive film, 10 ... Combined resistance of the pressure sensitive rubber and electrode sheet, 11 ... Distributed capacitance between the shield sheet and electrode sheet, 12 ... Capacitance between the human body and the shield sheet, 13 ... Noise signal source, 14... operational amplifier, 15... second shield sheet, 16... distributed capacitance between the first and second shield sheets.
Claims (1)
と、感圧ゴム５と、電極シート６と、可とう性の
第１シールドシート７及び第２シールドシート１
５とを有し、前記抵抗膜２に電位勾配を与える駆
動装置４と、前記第１シールドシート７を電極シ
ート６とほゞ同電位とするための手段１４とが具
備され、前記第２シールドシート１５が接地もし
くは低出力インピーダンス源に接続され、筆記具
による加圧の位置に対応する電圧を前記電極シー
ト６からとり出すことを特徴とする感圧式座標入
力装置。 A resistive film 2 that is sequentially laminated on a flat substrate 1
, a pressure sensitive rubber 5, an electrode sheet 6, a flexible first shield sheet 7 and a second flexible shield sheet 1.
5, a driving device 4 for applying a potential gradient to the resistive film 2, and means 14 for bringing the first shield sheet 7 to substantially the same potential as the electrode sheet 6; A pressure-sensitive coordinate input device characterized in that the sheet 15 is connected to ground or a low output impedance source, and a voltage corresponding to the position of pressure applied by the writing instrument is extracted from the electrode sheet 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985070511U JPH0330901Y2 (en) | 1985-05-15 | 1985-05-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985070511U JPH0330901Y2 (en) | 1985-05-15 | 1985-05-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61189340U true JPS61189340U (en) | 1986-11-26 |
| JPH0330901Y2 JPH0330901Y2 (en) | 1991-06-28 |
Family
ID=30607149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985070511U Expired JPH0330901Y2 (en) | 1985-05-15 | 1985-05-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0330901Y2 (en) |
-
1985
- 1985-05-15 JP JP1985070511U patent/JPH0330901Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0330901Y2 (en) | 1991-06-28 |
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