JPS6177103A - Detecting circuit for magnetic saturation level of tape - Google Patents
Detecting circuit for magnetic saturation level of tapeInfo
- Publication number
- JPS6177103A JPS6177103A JP19665884A JP19665884A JPS6177103A JP S6177103 A JPS6177103 A JP S6177103A JP 19665884 A JP19665884 A JP 19665884A JP 19665884 A JP19665884 A JP 19665884A JP S6177103 A JPS6177103 A JP S6177103A
- Authority
- JP
- Japan
- Prior art keywords
- tape
- level
- recording
- magnetic saturation
- amplifier
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、録音レベルを手動で行なうテープデツキの記
録レベルの設定に係り、特に最大レベルの設定を行なう
に好適な目安を検出することに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to manually setting the recording level of a tape deck, and particularly to detecting a suitable guideline for setting the maximum level.
従来の装置は特開昭５９−１１５１０号に記載のように
、テープの種類により、おおよその飽和レベルを表示し
、検出は行なりていなかった。しかし、テープの種類が
増え、同一種類の中でもランクが分かれて来て、この点
についての配慮がなかった。As described in Japanese Patent Application Laid-Open No. 59-11510, conventional devices display approximate saturation levels depending on the type of tape and do not perform detection. However, as the number of types of tapes has increased, and even within the same type of tapes, there have been different ranks, and no consideration has been given to this point.
本発明の目的は、個々のテープに対して、磁気飽和レベ
ルを検出し、記録レベル設定の目標を容易に知らせるこ
とができるテープの磁気飽和レベル検出回路を提供する
ことにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a tape magnetic saturation level detection circuit that can detect the magnetic saturation level of each tape and easily notify the target of recording level setting.
テープの磁気飽和レベルを検出するには、テープに記録
し再生した信号を調べる必要がある。To detect the magnetic saturation level of a tape, it is necessary to examine the signals recorded on and played back from the tape.
このため本発明は、録音アンプ側に発振器を設け、テー
プに記録し、さらにこの記録された信号を再生し、最大
値を検出するために、再生アンプ側にピークホールド回
路を設けたことにある。For this reason, the present invention consists in providing an oscillator on the recording amplifier side, recording it on tape, and further reproducing this recorded signal, and providing a peak hold circuit on the reproduction amplifier side in order to detect the maximum value. .
以下、本発明の一実施例を図により説明する。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
発振回路１より入力された信号は、録音アンプ２、記録
用ヘッド３を介してテープ４に記録される。この信号は
、再生用ヘッド５、再生アンプ６を介して、ピークホー
ルド回路７に入り最大値が表示装置８に表示される。A signal input from the oscillation circuit 1 is recorded on a tape 4 via a recording amplifier 2 and a recording head 3. This signal enters a peak hold circuit 7 via a reproduction head 5 and a reproduction amplifier 6, and the maximum value is displayed on a display device 8.
ここで発振回路１の設定値を可変することにより、テー
プに記録可能７．１′最大値が表示装置８に表示される
。By varying the set value of the oscillation circuit 1, the maximum value of 7.1' that can be recorded on the tape is displayed on the display device 8.
本実施例によれば、テープの磁気飽和レベルを短時間の
うちに知ることができ、記録しつる最大レベルが容易に
わかる効果がある。According to this embodiment, the magnetic saturation level of the tape can be known in a short time, and the maximum recording level can be easily determined.
本発明によれば、個々のテープの磁気飽和レベルがわか
るので、個々のテープの最大記録レベルが容易にわかる
という効果がある。According to the present invention, since the magnetic saturation level of each tape can be determined, the maximum recording level of each tape can be easily determined.
【図面の簡単な説明】
図は本発明の一実施例の回路構成を示すブロック図であ
る。
１・・・発振回路 ２・・・録音アンプ３・・・記
録用ヘッド ４・・・磁気テープ５・・・再生用ヘッド
６・・・再生用アンプ７・・・ピークホールド回路
８・・・表示装置BRIEF DESCRIPTION OF THE DRAWINGS The figure is a block diagram showing a circuit configuration of an embodiment of the present invention. 1... Oscillator circuit 2... Recording amplifier 3... Recording head 4... Magnetic tape 5... Playback head 6... Playback amplifier 7... Peak hold circuit 8... display device
Claims (1)
録回路において、録音アンプの入力側に発振回路を接続
し、再生アンプに出力レベルのピークレベル記憶回路を
設け、実際のテープの磁気飽和レベルより大きな出力レ
ベルを発振器より供給し、これをテープに記録させ、再
生する最大レベルを再生側で記憶し、この記憶されたレ
ベルのみをレベルメーター上に点燈し記録時のレベル設
定が容易になる様な目安を知らしめることを特徴とする
テープの磁気飽和レベル検出回路。In a magnetic recording circuit equipped with a recording amplifier, a magnetic head, and a playback amplifier, an oscillation circuit is connected to the input side of the recording amplifier, and a peak level storage circuit for the output level is provided in the playback amplifier, so that the output level is lower than the actual magnetic saturation level of the tape. A large output level is supplied from an oscillator, this is recorded on tape, the maximum level for playback is memorized on the playback side, and only this memorized level is lit on the level meter, making it easy to set the level during recording. A magnetic saturation level detection circuit for a tape is characterized by notifying a rough guideline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19665884A JPS6177103A (en) | 1984-09-21 | 1984-09-21 | Detecting circuit for magnetic saturation level of tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19665884A JPS6177103A (en) | 1984-09-21 | 1984-09-21 | Detecting circuit for magnetic saturation level of tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6177103A true JPS6177103A (en) | 1986-04-19 |
Family
ID=16361438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19665884A Pending JPS6177103A (en) | 1984-09-21 | 1984-09-21 | Detecting circuit for magnetic saturation level of tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6177103A (en) |
-
1984
- 1984-09-21 JP JP19665884A patent/JPS6177103A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6177103A (en) | Detecting circuit for magnetic saturation level of tape | |
| JPS5756844A (en) | Television picture photoengraving and photographing device | |
| JPS5733407A (en) | 3-head type magnetic sound recorder and reproducer | |
| JPS5522253A (en) | Sound recording method | |
| JPS57152571A (en) | Discoidal recording medium reproducer | |
| JPH0441467Y2 (en) | ||
| JPS61253688A (en) | Level meter | |
| JPS5746366A (en) | Information processor | |
| JPS56156975A (en) | Magnetic recorder | |
| JPS6286593A (en) | Fm sound reproducing output display device for fm sound recording vtr | |
| JPS60123730U (en) | magnetic recording and reproducing device | |
| JPH06168507A (en) | Magnetic reproducing device | |
| JPS551671A (en) | Tape recorder | |
| JPS6145792U (en) | magnetic recording and reproducing device | |
| JPS55113180A (en) | System and device for automatic selection of music of tape recorder | |
| JPH0239302U (en) | ||
| JPS6423693A (en) | Picture quality adjusting device for vtr | |
| JPS56143578A (en) | Recording and reproducing guide device | |
| JPS62120486U (en) | ||
| JPS55150122A (en) | Magnetic recording and reproducing device | |
| JPH01109831U (en) | ||
| JPS61174033U (en) | ||
| JPH04315847A (en) | Index retrieval system for magnetic recording | |
| JPS5939440U (en) | magnetic tape playback device | |
| JPS5463809A (en) | Head angle adjustor for tape recorder |