JPS61253688A - Level meter - Google Patents
Level meterInfo
- Publication number
- JPS61253688A JPS61253688A JP9546385A JP9546385A JPS61253688A JP S61253688 A JPS61253688 A JP S61253688A JP 9546385 A JP9546385 A JP 9546385A JP 9546385 A JP9546385 A JP 9546385A JP S61253688 A JPS61253688 A JP S61253688A
- Authority
- JP
- Japan
- Prior art keywords
- level
- saturation level
- meter
- recording
- magnetic
- 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
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はテープレコーダに係り2特に、磁気飽和レベル
の表示に好適なレベルメータに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a tape recorder, and particularly to a level meter suitable for displaying a magnetic saturation level.
従来の磁気飽和レベルの表示法には特開昭50−921
159号公報にあるように、飽和レベル表示用メータを
記録レベル表示用メータの近傍に配設するものがある。The conventional method for displaying magnetic saturation level is Japanese Patent Application Laid-Open No. 50-921.
As disclosed in Japanese Patent No. 159, there is a device in which a meter for displaying a saturation level is disposed near a meter for displaying a recording level.
これにより、容易に飽和レベルを知ることができるが、
安価に飽和レベル表示を行うには難点があった。This allows you to easily know the saturation level, but
There were some difficulties in displaying the saturation level at a low cost.
本発明の目的は磁気飽和レベル表示付レベルメータを提
供することにある。An object of the present invention is to provide a level meter with a magnetic saturation level display.
本発明は、ディジタルレベルメータ上の特定の個所につ
き、明るさを変えることにより、しさルメータ上の磁気
飽和レベル表示を知らしめるとい゛う考えに基づいてな
されたものである。The present invention is based on the idea that the magnetic saturation level on a digital level meter can be indicated by changing the brightness of a specific location on the digital level meter.
すなわち本発明は、テープの種類及び、バイアス電流に
より定まる磁気テープの磁気飽和レベルを、録音レベル
又は再生レベルと同時に。That is, the present invention simultaneously adjusts the magnetic saturation level of the magnetic tape, which is determined by the type of tape and the bias current, as well as the recording level or playback level.
同一メータ上に表示し、録音レベル又は再生レベルが磁
気飽和レベルを越えた時、越えた部分または飽和レベル
表示の明るさをメータの明るさと変えることを特徴とす
るものである。This is displayed on the same meter, and when the recording level or playback level exceeds the magnetic saturation level, the brightness of the exceeded part or the saturation level display is changed to the brightness of the meter.
以下1本発明の一実施例を第1図〜第3図により説明す
る。An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.
最初に第1図に示すように、CPUにより。First, as shown in FIG. 1, by the CPU.
磁気飽和レベルの検出を行うための所定の信号を発振器
により出力させる。この信号を録音再生しその再生レベ
ルを飽和レベルとし、AD変換器によりディジタル信号
に変換し、飽和レベル記憶装置に記憶させる。そして録
音動作あるいは再生動作中は第2図の様に、再生信号あ
るいは鈴音入力信号をA/D変換し、そのレベル及びそ
れ以下のレベルに相当するドツトを点灯させると共に、
飽和レベル記憶装置により記憶されている飽和レベルに
相当するドツトを点灯させる。又第3図の様に、録音レ
ベル又は再生レベルが磁気飽和レベルを越えた場合、越
えた部分に相当する4から5の部にのレベルメータの明
るさを他と変える。これによって磁気飽和レベルを越え
た場合、容易に確認ができるようになる。The oscillator outputs a predetermined signal for detecting the magnetic saturation level. This signal is recorded and reproduced to set the reproduction level to a saturation level, which is converted into a digital signal by an AD converter and stored in a saturation level storage device. During the recording or playback operation, as shown in Figure 2, the playback signal or chime input signal is A/D converted, and dots corresponding to that level and lower levels are lit.
A dot corresponding to the saturation level stored in the saturation level storage device is lit. Further, as shown in FIG. 3, when the recording level or reproduction level exceeds the magnetic saturation level, the brightness of the level meter is changed from 4 to 5 corresponding to the exceeded part. This makes it easy to check if the magnetic saturation level is exceeded.
本発明によれば、1つのレベルメータにより録音入力あ
るいは再生出力と磁気飽和レベル表示を行うことができ
るので、レベルメータのコストアップなしに、磁気飽和
レベル表示を行うことができるという効果がある。According to the present invention, since a single level meter can perform recording input or playback output and display magnetic saturation level, there is an effect that magnetic saturation level can be displayed without increasing the cost of the level meter.
第1図は本発明の一実施例の構成を示すブロック図、第
2図、第3図は同じくレベルメータの動作説明図である
。
1・・・録音ヘッド、 2・・・再生ヘッド。
3・・・磁気テープ、 4・・・音楽信号のレベ
ル。FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and FIGS. 2 and 3 are diagrams explaining the operation of the level meter. 1...recording head, 2...playback head. 3...Magnetic tape, 4...Music signal level.
Claims (1)
るテープレコーダに於て、テープの種類及びバイアス電
流により定まる磁気テープの磁気飽和レベルを、録音レ
ベル又は再生レベルと同時に、同一メータ上に表示し、
録音レベル又は再生レベルが、磁気飽和レベルを越えた
時、越えた部分又は飽和レベル表示の明るさをメータの
明るさと変えることを特徴とするレベルメータ。1. In a tape recorder having a meter that indicates the recording level or playback level, the magnetic saturation level of the magnetic tape determined by the tape type and bias current is displayed on the same meter at the same time as the recording level or playback level,
A level meter characterized in that, when a recording level or a playback level exceeds a magnetic saturation level, the brightness of the exceeded part or the saturation level display is changed to the brightness of the meter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9546385A JPS61253688A (en) | 1985-05-07 | 1985-05-07 | Level meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9546385A JPS61253688A (en) | 1985-05-07 | 1985-05-07 | Level meter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61253688A true JPS61253688A (en) | 1986-11-11 |
Family
ID=14138353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9546385A Pending JPS61253688A (en) | 1985-05-07 | 1985-05-07 | Level meter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61253688A (en) |
-
1985
- 1985-05-07 JP JP9546385A patent/JPS61253688A/en active Pending
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