JPS63164820U - - Google Patents
Info
- Publication number
- JPS63164820U JPS63164820U JP5805087U JP5805087U JPS63164820U JP S63164820 U JPS63164820 U JP S63164820U JP 5805087 U JP5805087 U JP 5805087U JP 5805087 U JP5805087 U JP 5805087U JP S63164820 U JPS63164820 U JP S63164820U
- Authority
- JP
- Japan
- Prior art keywords
- light
- tape
- recording medium
- shaped recording
- converter
- 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 4
- 238000003708 edge detection Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案に係るテープ状記録媒体のテー
プ端検出装置の概略構成図、第２図は外来光があ
るときのＬＥＤ出力とホトトランジスタ出力の波
形図、第３図はテープ端検出装置を備えた磁気記
録再生装置の概略構成図、第４図は従来のテープ
端検出装置の回路図である。
１……演算処理部（マイクロコンピユータ）、
２……Ｄ／Ａ変換器、３……ＬＥＤ（発光素子）
、４……ホトトランジスタ（受光素子）、５……
Ａ／Ｄ変換器。
Fig. 1 is a schematic configuration diagram of a tape end detection device for a tape-shaped recording medium according to the present invention, Fig. 2 is a waveform diagram of LED output and phototransistor output when there is external light, and Fig. 3 is a tape end detection device. FIG. 4 is a circuit diagram of a conventional tape end detection device. 1... Arithmetic processing unit (microcomputer),
2...D/A converter, 3...LED (light emitting element)
, 4... phototransistor (light receiving element), 5...
A/D converter.
Claims (1)
とが配置されるとともに、前記発光素子から発せ
られた光を前記テープ状記録媒体を通して前記受
光素子で受光し、この受光信号を演算処理部で処
理することにより、前記テープ状記録媒体の始端
もしくは終端を検出するように構成されたテープ
状記録媒体のテープ端検出装置において、 前記受光素子と前記演算処理部との間にＡ／Ｄ
変換器が接続されるとともに、前記演算処理部と
前記発光素子との間にＤ／Ａ変換器が接続され、
前記受光素子の出力が前記Ａ／Ｄ変換器で数値化
されて前記演算処理部に入力されるとともに、こ
の入力データに基いて前記発光素子の発光量を前
記Ａ／Ｄ変換器を介して制御するようになされた
ことを特徴と するテープ状記録媒体のテープ端検出装置。[Claims for Utility Model Registration] A light-emitting element and a light-receiving element are arranged through a tape-shaped recording medium, and the light emitted from the light-emitting element is received by the light-receiving element through the tape-shaped recording medium. In a tape end detection device for a tape-shaped recording medium configured to detect a starting end or a terminal end of the tape-shaped recording medium by processing a light reception signal in an arithmetic processing section, the light receiving element and the arithmetic processing section A/D between
A converter is connected, and a D/A converter is connected between the arithmetic processing unit and the light emitting element,
The output of the light receiving element is digitized by the A/D converter and input to the arithmetic processing unit, and the amount of light emitted by the light emitting element is controlled via the A/D converter based on this input data. A tape edge detection device for a tape-shaped recording medium, characterized in that the device is configured to:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5805087U JPS63164820U (en) | 1987-04-15 | 1987-04-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5805087U JPS63164820U (en) | 1987-04-15 | 1987-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63164820U true JPS63164820U (en) | 1988-10-27 |
Family
ID=30888298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5805087U Pending JPS63164820U (en) | 1987-04-15 | 1987-04-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63164820U (en) |
-
1987
- 1987-04-15 JP JP5805087U patent/JPS63164820U/ja active Pending
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