JPH0380530U - - Google Patents
Info
- Publication number
- JPH0380530U JPH0380530U JP13992189U JP13992189U JPH0380530U JP H0380530 U JPH0380530 U JP H0380530U JP 13992189 U JP13992189 U JP 13992189U JP 13992189 U JP13992189 U JP 13992189U JP H0380530 U JPH0380530 U JP H0380530U
- Authority
- JP
- Japan
- Prior art keywords
- recording
- detection circuit
- recording medium
- erasure prevention
- erroneous erasure
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Description
第１図及び第２図はこの考案に係る記録・再生
機器の誤消去防止装置の実施例を示し、第１図は
ブロツク図、第２図はテープの記録状態を示す図
である。
主な符号の説明、１…回転ドラム、２…ＲＦア
ンプ、３…記録アンプ、４…デイジタル信号処理
回路、５…レベル検出回路、６…識別孔検出回路
、７…録音判定回路、８…コントロール回路、９
…ＲＥＣキー、１０…ＲＥＣ ＰＡＵＳＥキー、
１１…フアンクシヨンキー。
1 and 2 show an embodiment of the accidental erasure prevention device for recording/reproducing equipment according to this invention, FIG. 1 is a block diagram, and FIG. 2 is a diagram showing the state of recording on a tape. Explanation of main symbols, 1...Rotating drum, 2...RF amplifier, 3...Recording amplifier, 4...Digital signal processing circuit, 5...Level detection circuit, 6...Identification hole detection circuit, 7...Recording judgment circuit, 8...Control circuit, 9
...REC key, 10...REC PAUSE key,
11...Function key.
Claims (1)
記録媒体の誤消去を防止するようにした記録・再
生機器において、 前記記録媒体の誤消去防止機構の状態を検出す
る第１の検出回路と、記録媒体の再生ＲＦ信号の
レベルの大小を検出する第２の検出回路と、前記
第１の検出回路と第２の検出回路との出力信号に
基づき録音の可否を判定する録音判定回路とを設
けたことを特徴とする記録・再生機器の誤消去防
止装置。[Claims for Utility Model Registration] In a recording/playback device that prevents erroneous erasure of a recording medium based on an erroneous erasure prevention mechanism provided in the recording medium, the state of the erroneous erasure prevention mechanism of the recording medium is detected. A first detection circuit, a second detection circuit that detects the level of the reproduction RF signal of the recording medium, and determines whether or not recording is possible based on the output signals of the first detection circuit and the second detection circuit. What is claimed is: 1. An accidental erasure prevention device for a recording/playback device, characterized in that it is equipped with a recording determination circuit that performs a recording determination circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13992189U JPH0636506Y2 (en) | 1989-12-04 | 1989-12-04 | Accidental erasure prevention device for recording / playback equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13992189U JPH0636506Y2 (en) | 1989-12-04 | 1989-12-04 | Accidental erasure prevention device for recording / playback equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0380530U true JPH0380530U (en) | 1991-08-19 |
| JPH0636506Y2 JPH0636506Y2 (en) | 1994-09-21 |
Family
ID=31686937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13992189U Expired - Lifetime JPH0636506Y2 (en) | 1989-12-04 | 1989-12-04 | Accidental erasure prevention device for recording / playback equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0636506Y2 (en) |
-
1989
- 1989-12-04 JP JP13992189U patent/JPH0636506Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0636506Y2 (en) | 1994-09-21 |
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