JPS63184419U - - Google Patents
Info
- Publication number
- JPS63184419U JPS63184419U JP7447387U JP7447387U JPS63184419U JP S63184419 U JPS63184419 U JP S63184419U JP 7447387 U JP7447387 U JP 7447387U JP 7447387 U JP7447387 U JP 7447387U JP S63184419 U JPS63184419 U JP S63184419U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic tape
- recording
- head
- reproducing device
- erasing
- 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
- 230000002265 prevention Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は第１図の実施例において、ヘツドの配置
状態を示す斜視図、第３図は本考案を実施したと
きの磁気テープとヘツドとの状態を示す図である
。
１……磁気テープ、２……検出用ヘツド、３…
…消去用ヘツド、４……録音再生用ヘツド、５…
…記録状態解除機構、６……消去してもよい部分
、７……無記録部分、８……消去されてはならな
い部分、９……消去用ヘツドにより消去された部
分、１０……録音再生用ヘツドにより新たに記録
された部分。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a perspective view showing the arrangement of the heads in the embodiment of FIG. 1, and FIG. 3 is a diagram showing the state of the magnetic tape and head when the present invention is put into practice. 1...Magnetic tape, 2...Detection head, 3...
... Erasing head, 4... Recording/playback head, 5...
...recording state release mechanism, 6...portion that may be erased, 7...unrecorded portion, 8...portion that must not be erased, 9...portion erased by the erasing head, 10...recording playback The part newly recorded by the recording head.
Claims (1)
方に配置され、磁気テープの無記録部分から記録
済部分に変化したことを検出する検出用ヘツドと
、 前記検出用ヘツドからの検出信号に基づいて磁
気テープ記録再生機の記録状態を解除する記録状
態解除機構とを備え、 磁気テープの消去してはならない記録済部分を
誤つて消去してしまうことのないようにすること
を特徴とする磁気テープの誤消去防止装置。[Claims for Utility Model Registration] A detection head that is disposed in front of the erasing head with respect to the running direction of the magnetic tape and detects when the magnetic tape changes from a non-recorded area to a recorded area; and the detection head and a recording state release mechanism that releases the recording state of the magnetic tape recording/reproducing device based on a detection signal from the magnetic tape recording/reproducing device, thereby preventing accidentally erasing recorded portions of the magnetic tape that should not be erased. A magnetic tape accidental erasure prevention device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7447387U JPS63184419U (en) | 1987-05-20 | 1987-05-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7447387U JPS63184419U (en) | 1987-05-20 | 1987-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63184419U true JPS63184419U (en) | 1988-11-28 |
Family
ID=30919724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7447387U Pending JPS63184419U (en) | 1987-05-20 | 1987-05-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63184419U (en) |
-
1987
- 1987-05-20 JP JP7447387U patent/JPS63184419U/ja active Pending
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