JPH0187436U - - Google Patents
Info
- Publication number
- JPH0187436U JPH0187436U JP18294487U JP18294487U JPH0187436U JP H0187436 U JPH0187436 U JP H0187436U JP 18294487 U JP18294487 U JP 18294487U JP 18294487 U JP18294487 U JP 18294487U JP H0187436 U JPH0187436 U JP H0187436U
- Authority
- JP
- Japan
- Prior art keywords
- connect
- contact
- circuit
- coil
- normally closed
- 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
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 4
Description
第１図は本考案の位置指示器の同調回路の一実
施例を示す図、第２図は従来の位置指示器の同調
回路の一例を示す図、第３図は第１図の同調回路
を備えたカーソルの斜視図、第４図は第３図のカ
ーソルを用いる座標入力装置の一実施例を示す構
成図、第５図はタブレツトのＸ方向及びＹ方向の
ループコイル群の詳細な構成図、第６図は第４図
の各部の信号波形図、第７図は制御回路における
処理の流れ図、第８図ａ，ｂ，ｃは制御回路にお
ける基本的な座標検出動作を示すタイミング図、
第９図は第１回目の座標検出動作の際に各ループ
コイルより得られる検出電圧を示す図、第１０図
は第２回目以降の座標検出動作及び状態識別動作
を示すタイミング図である。
Ｌ……コイル、ＳＷ１〜ＳＷ４……切替スイツ
チ、Ｃ０１，Ｃ０２，Ｃ０３，Ｃ０４，Ｃ０５…
…コンデンサ、ＮＣ……ノーマルクローズ接点、
ＮＯ……ノーマルオープン接点、Ｃ……共通接点
。
FIG. 1 is a diagram showing an example of the tuning circuit of the position pointing device of the present invention, FIG. 2 is a diagram showing an example of the tuning circuit of the conventional position pointing device, and FIG. 3 is a diagram showing an example of the tuning circuit of the conventional position pointing device. 4 is a configuration diagram showing an embodiment of the coordinate input device using the cursor shown in FIG. 3; FIG. 5 is a detailed configuration diagram of the loop coil groups in the X and Y directions of the tablet. , FIG. 6 is a signal waveform diagram of each part in FIG. 4, FIG. 7 is a flow chart of processing in the control circuit, and FIG. 8 a, b, and c are timing diagrams showing basic coordinate detection operations in the control circuit.
FIG. 9 is a diagram showing detection voltages obtained from each loop coil during the first coordinate detection operation, and FIG. 10 is a timing chart showing the coordinate detection operation and state identification operation from the second time onwards. L...Coil, SW1-SW4...Selector switch, C01, C02, C03, C04, C05...
...Capacitor, NC...Normally closed contact,
NO...Normally open contact, C...Common contact.
Claims (1)
の際、回路内に発生する信号に基づいて電波を発
生させ、タブレツト側に返送する位置指示器の同
調回路において、 コイルと、ノーマルクローズ接点、ノーマルオ
ープン接点及び共通接点を有するｎ（ｎは２以上
の整数）個の切替スイツチと、それぞれ容量値の
異なる（ｎ＋１）個のコンデンサとを備え、 各切替スイツチをノーマルクローズ接点及び共
通接点を介して直列に接続し、接続されない共通
接点をコイルの一端に接続し、該コイルの他端を
各コンデンサの一端に接続し、該各コンデンサの
他端を各切替スイツチのノーマルオープン接点及
び接続されないノーマルクローズ接点にそれぞれ
接続した ことを特徴とする位置指示器の同調回路。[Scope of claim for utility model registration] A coil in a tuned circuit of a position indicator that receives radio waves transmitted from the tablet side, generates radio waves based on signals generated in the circuit, and sends them back to the tablet side. , n (n is an integer of 2 or more) changeover switches each having a normally closed contact, a normally open contact, and a common contact, and (n+1) capacitors each having a different capacitance value, and each changeover switch is normally closed. Connect in series through contacts and common contacts, connect the unconnected common contact to one end of the coil, connect the other end of the coil to one end of each capacitor, and connect the other end of each capacitor to the normal A tuning circuit for a position indicator, characterized in that the circuit is connected to an open contact and an unconnected normally closed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18294487U JPH0421143Y2 (en) | 1987-12-02 | 1987-12-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18294487U JPH0421143Y2 (en) | 1987-12-02 | 1987-12-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0187436U true JPH0187436U (en) | 1989-06-09 |
| JPH0421143Y2 JPH0421143Y2 (en) | 1992-05-14 |
Family
ID=31474383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18294487U Expired JPH0421143Y2 (en) | 1987-12-02 | 1987-12-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0421143Y2 (en) |
-
1987
- 1987-12-02 JP JP18294487U patent/JPH0421143Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0421143Y2 (en) | 1992-05-14 |
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