JPS61163340U - - Google Patents
Info
- Publication number
- JPS61163340U JPS61163340U JP4720485U JP4720485U JPS61163340U JP S61163340 U JPS61163340 U JP S61163340U JP 4720485 U JP4720485 U JP 4720485U JP 4720485 U JP4720485 U JP 4720485U JP S61163340 U JPS61163340 U JP S61163340U
- Authority
- JP
- Japan
- Prior art keywords
- emitting element
- light emitting
- light
- magnetic tape
- receiving element
- 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 3
- 238000010586 diagram Methods 0.000 description 3
Description
第１図はこの考案の一実施例の発光素子及び受
光素子の配置図、第２図は同実施例の検出回路の
回路図、第３図は従来例の発光素子及び受光素子
の配置図である。
４……発光素子、５……受光素子、１０……磁
気テープ、１１……発光素子、１３……ＮＯＴ回
路、１４……第１のＮＯＲ回路、１５……第２の
ＮＯＲ回路。
Fig. 1 is a layout diagram of a light emitting element and a light receiving element of an embodiment of this invention, Figure 2 is a circuit diagram of a detection circuit of the same embodiment, and Figure 3 is a layout diagram of a conventional example of a light emitting element and a light receiving element. be. 4... Light emitting element, 5... Light receiving element, 10... Magnetic tape, 11... Light emitting element, 13... NOT circuit, 14... First NOR circuit, 15... Second NOR circuit.
Claims (1)
ーダを透過光により光検出するための第１の発光
素子と少なくとも１つの受光素子とを備えた磁気
記録再生装置において、 前記受光素子と対になり前記磁気テープに対す
る反射型光検出器を構成する位置に第２の発光素
子を請け、前記第１の発光素子又は前記第２の発
光素子を時分割で駆動し且つ前記受光素子で検出
された信号を前記第１の発光素子及び第２の発光
素子に関わる信号に分離する検出回路を備えてな
り、前記磁気テープ上の任意の位置に施された着
色部を光検出することを特徴とする磁気テープの
頭出し検出装置。[Claims for Utility Model Registration] A magnetic recording and reproducing device comprising a first light-emitting element and at least one light-receiving element for optically detecting transparent leaders provided at the start and end points of a magnetic tape using transmitted light, A second light emitting element is provided at a position pairing with the light receiving element and forming a reflection type photodetector for the magnetic tape, the first light emitting element or the second light emitting element is driven in a time division manner, and the second light emitting element is driven in a time division manner. a detection circuit that separates a signal detected by the light receiving element into signals related to the first light emitting element and the second light emitting element, and optically detects a colored portion applied at an arbitrary position on the magnetic tape A magnetic tape cue detection device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4720485U JPS61163340U (en) | 1985-03-29 | 1985-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4720485U JPS61163340U (en) | 1985-03-29 | 1985-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61163340U true JPS61163340U (en) | 1986-10-09 |
Family
ID=30562319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4720485U Pending JPS61163340U (en) | 1985-03-29 | 1985-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61163340U (en) |
-
1985
- 1985-03-29 JP JP4720485U patent/JPS61163340U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS58165795U (en) | tape cassette | |
| JPS61163340U (en) | ||
| JPH0376228U (en) | ||
| JPS59194135U (en) | Tape recorder reverse sensor circuit | |
| JPS63168629U (en) | ||
| JPS61102807U (en) | ||
| JPH0390007U (en) | ||
| JPS6415334U (en) | ||
| JPS6437958U (en) | ||
| JPH01135596U (en) | ||
| JPS59145744U (en) | Record player display device | |
| JPS62171084U (en) | ||
| JPS6146627U (en) | flat display device | |
| JPH0260925U (en) | ||
| JPH035252U (en) | ||
| JPH042056U (en) | ||
| JPS61125764U (en) | ||
| JPS63176937U (en) | ||
| JPS5817645U (en) | cassette tape recorder | |
| JPS59115312U (en) | photo sensor | |
| JPS6270325U (en) | ||
| JPS63164820U (en) | ||
| JPH0270263U (en) | ||
| JPS59185759U (en) | Record size/presence detection device | |
| JPS59166108U (en) | Shape discrimination sensor |