JPS62158639U - - Google Patents
Info
- Publication number
- JPS62158639U JPS62158639U JP4483586U JP4483586U JPS62158639U JP S62158639 U JPS62158639 U JP S62158639U JP 4483586 U JP4483586 U JP 4483586U JP 4483586 U JP4483586 U JP 4483586U JP S62158639 U JPS62158639 U JP S62158639U
- Authority
- JP
- Japan
- Prior art keywords
- light source
- tape
- signal
- source drive
- detection
- 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
- 238000001514 detection method Methods 0.000 claims description 12
- 230000004397 blinking Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 1
Description
第１図は本考案のテープ終端検出回路の一実施
例を示した回路図、第２図は第１図の動作波形図
、第３図は従来のテープ終端検出システムの一例
を示したブロツク図、第４図は第３図のテープ終
端検出回路の一例を示した回路図、第５図は第４
図に示した回路の動作波形図である。
４…検出光源、６…供給側検出素子、７…巻取
側検出素子、８…検出用マイクロコンピユータ、
１０…光源ドライブ回路。
Fig. 1 is a circuit diagram showing an embodiment of the tape end detection circuit of the present invention, Fig. 2 is an operation waveform diagram of Fig. 1, and Fig. 3 is a block diagram showing an example of a conventional tape end detection system. , FIG. 4 is a circuit diagram showing an example of the tape end detection circuit shown in FIG. 3, and FIG.
FIG. 3 is an operation waveform diagram of the circuit shown in the figure. 4... Detection light source, 6... Supply side detection element, 7... Winding side detection element, 8... Detection microcomputer,
10...Light source drive circuit.
Claims (1)
出素子の出力検出信号によつて、テープの終端を
検出するテープ終端検出回路において、前記光源
を点滅させる周期を決める光源ドライブ信号を作
出するドライブ信号作出手段と、前記光源ドライ
ブ信号に同期して前記光源を点滅させる光源ドラ
イブ手段と、前記検出信号と前記光源ドライブ信
号とを比較してテープ終端検出の是非を判定する
判定手段とを具備して成ることを特徴とするテー
プ終端検出回路。 A drive that generates a light source drive signal that determines the cycle of blinking the light source in a tape end detection circuit that detects the end of the tape based on an output detection signal of a detection element that fills the tape with incident light from a light source. A signal generating means, a light source drive means for blinking the light source in synchronization with the light source drive signal, and a determining means for comparing the detection signal and the light source drive signal to determine whether or not the end of the tape has been detected. A tape end detection circuit comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4483586U JPS62158639U (en) | 1986-03-28 | 1986-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4483586U JPS62158639U (en) | 1986-03-28 | 1986-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62158639U true JPS62158639U (en) | 1987-10-08 |
Family
ID=30863019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4483586U Pending JPS62158639U (en) | 1986-03-28 | 1986-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62158639U (en) |
-
1986
- 1986-03-28 JP JP4483586U patent/JPS62158639U/ja active Pending
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