JPS6047133U - Tape end detection circuit for magnetic recording and reproducing equipment - Google Patents
Tape end detection circuit for magnetic recording and reproducing equipmentInfo
- Publication number
- JPS6047133U JPS6047133U JP14057883U JP14057883U JPS6047133U JP S6047133 U JPS6047133 U JP S6047133U JP 14057883 U JP14057883 U JP 14057883U JP 14057883 U JP14057883 U JP 14057883U JP S6047133 U JPS6047133 U JP S6047133U
- Authority
- JP
- Japan
- Prior art keywords
- detection circuit
- magnetic recording
- end detection
- light receiving
- magnetic tape
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来例の回路図、第２図は第１図の動作説明用
信号波形図、第３図は本考案の一実施例の回路図、第４
図は第３図の動作説明用信号波形図、第５図は第３図の
発光ダイオード、受光トランジスタおよびビデオテープ
の位置関係を示す簡略化した図である。
１０・・・発光ダイオード、１１．１２・・・受光トラ
ンジスタ、１３・・・ビデオテープ、１５・・・制御回
路。FIG. 1 is a circuit diagram of a conventional example, FIG. 2 is a signal waveform diagram for explaining the operation of FIG. 1, FIG. 3 is a circuit diagram of an embodiment of the present invention, and FIG.
This figure is a signal waveform diagram for explaining the operation of FIG. 3, and FIG. 5 is a simplified diagram showing the positional relationship among the light emitting diode, light receiving transistor, and video tape in FIG. 3. 10...Light emitting diode, 11.12...Light receiving transistor, 13...Video tape, 15...Control circuit.
Claims (1)
し、前記受光素子出力によって磁気テープの端部を検出
する磁気記録再生装置のテープ端検出回路において、前
記受光素子は磁気テープの走行方向に沿って所定の距離
を隔てて少なくとも２側設けら１れ、前記発光素子を駆
動するための駆動信号を与えるとともに、前記中なくと
も２個の受光素子の出力の組合せに応じて磁気テープの
始端、終端および録再可能領域を検出する制御回路が設
けられたことを特徴とする磁気記録再生装置のテープ端
検出回路。In a tape end detection circuit for a magnetic recording/reproducing device, a light emitting element and a light receiving element are disposed facing each other with a magnetic tape in between, and the end of the magnetic tape is detected by the output of the light receiving element, wherein the light receiving element is arranged in a direction in which the magnetic tape runs. are provided on at least two sides at a predetermined distance along the light emitting element, and provide a drive signal for driving the light emitting element, and also provide a drive signal for driving the magnetic tape according to a combination of the outputs of the at least two light receiving elements. 1. A tape end detection circuit for a magnetic recording/reproducing device, comprising a control circuit for detecting a start end, a end end, and a recordable/reproducible area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14057883U JPS6047133U (en) | 1983-09-09 | 1983-09-09 | Tape end detection circuit for magnetic recording and reproducing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14057883U JPS6047133U (en) | 1983-09-09 | 1983-09-09 | Tape end detection circuit for magnetic recording and reproducing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6047133U true JPS6047133U (en) | 1985-04-03 |
Family
ID=30314690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14057883U Pending JPS6047133U (en) | 1983-09-09 | 1983-09-09 | Tape end detection circuit for magnetic recording and reproducing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6047133U (en) |
-
1983
- 1983-09-09 JP JP14057883U patent/JPS6047133U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5856341U (en) | Unrecorded area detection device | |
| JPS6047133U (en) | Tape end detection circuit for magnetic recording and reproducing equipment | |
| JPS5817692U (en) | playback device | |
| JPS59145744U (en) | Record player display device | |
| JPS59168846U (en) | Cassette mounting surface detection device in one-way tape recorder | |
| JPS59153634U (en) | Tape recorder control circuit | |
| JPS59177037U (en) | tape recorder | |
| JPS6093135U (en) | Tape recorder with recording/mute device | |
| JPS5875367U (en) | Video disc player arm feeder | |
| JPS60116625U (en) | Tape recorder accidental erasure prevention device | |
| JPS58151938U (en) | Cassette tape drive device | |
| JPS58101324U (en) | tracking device | |
| JPS6056920U (en) | cassette tape recorder | |
| JPS587212U (en) | tape recorder | |
| JPS60194732U (en) | tape recorder | |
| JPS60163501U (en) | Information disc playback device | |
| JPS58144693U (en) | Video and audio signal recording and playback equipment | |
| JPS59173142U (en) | Display circuit for language practice tape recorder | |
| JPS60127620U (en) | Magnetic head azimuth adjustment device | |
| JPS60173117U (en) | magnetic recording and reproducing device | |
| JPS6031724U (en) | tape recorder | |
| JPS5948563U (en) | Magnetic recording tape for automatic learning devices | |
| JPS5843640U (en) | Recording/playback device | |
| JPS58140518U (en) | Fixed head VTR head shift circuit | |
| JPS58151990U (en) | VTR cassette |