JPS6242159U - - Google Patents
Info
- Publication number
- JPS6242159U JPS6242159U JP13271885U JP13271885U JPS6242159U JP S6242159 U JPS6242159 U JP S6242159U JP 13271885 U JP13271885 U JP 13271885U JP 13271885 U JP13271885 U JP 13271885U JP S6242159 U JPS6242159 U JP S6242159U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- recording current
- recording
- digital data
- reproducing
- 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
- 238000010586 diagram Methods 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 1
Landscapes
- Digital Magnetic Recording (AREA)
Description
第１図は本考案のデジタル信号の記録電流調整
装置の一実施例を示した構成図、第２図は磁気テ
ープの記録フオーマツトの例の概要を示した線図
、第３図及び第４図は夫々デジタルデータの記録
再生装置の説明に供する線図である。
３ａはプリアンブル信号、３ｅはデータ信号、
３ｆはポストアンブル信号、９は記録電流調整手
段、１３はコンヒヘツド、１４は増幅器、１５は
ＲＦイコライザ、１６はＲＦエンベロープ検波器
、１７はサンプルホールド回路、１８はメータで
ある。
FIG. 1 is a block diagram showing an embodiment of the digital signal recording current adjustment device of the present invention, FIG. 2 is a diagram showing an overview of an example of a magnetic tape recording format, and FIGS. 3 and 4 2A and 2B are diagrams for explaining digital data recording and reproducing devices, respectively. 3a is a preamble signal, 3e is a data signal,
3f is a postamble signal, 9 is a recording current adjustment means, 13 is a coherent head, 14 is an amplifier, 15 is an RF equalizer, 16 is an RF envelope detector, 17 is a sample and hold circuit, and 18 is a meter.
Claims (1)
に配されてなり、上記デジタルデータの最短波長
と等しい波長の連続波としてプリアンブル信号又
はポストアンブル信号を上記デジタルデータと共
に記録し再生する記録再生装置のデジタル信号の
記録電流調整装置において、上記デジタルデータ
及び少なくとも上記ポストアンブル信号又はプリ
アンブル信号の記録電流を調整する記録電流調整
手段と、この記録された信号を再生するとともに
上記ポストアンブル信号又はプリアンブル信号を
記録直後に再生してその再生レベルを検出する検
出手段とこの検出された再生レベルの振幅値を表
示するメータとを有し、このメータの表示が最大
になるように上記記録電流調整手段により記録電
流を調整するようにしたことを特徴とするデジタ
ル信号の記録電流調整装置。 A recording current of a digital signal of a recording/reproducing device which is arranged at least before or after a digital data block and records and reproduces a preamble signal or a postamble signal together with the digital data as a continuous wave having a wavelength equal to the shortest wavelength of the digital data. The adjusting device includes a recording current adjusting means for adjusting the recording current of the digital data and at least the postamble signal or the preamble signal, and a recording current adjusting means for reproducing the recorded signal and reproducing the postamble signal or the preamble signal immediately after recording. and a meter for displaying the amplitude value of the detected reproduction level, and the recording current adjusting means adjusts the recording current so that the meter displays the maximum value. A recording current adjustment device for digital signals, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13271885U JPH0447764Y2 (en) | 1985-08-30 | 1985-08-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13271885U JPH0447764Y2 (en) | 1985-08-30 | 1985-08-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6242159U true JPS6242159U (en) | 1987-03-13 |
| JPH0447764Y2 JPH0447764Y2 (en) | 1992-11-11 |
Family
ID=31032366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13271885U Expired JPH0447764Y2 (en) | 1985-08-30 | 1985-08-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0447764Y2 (en) |
-
1985
- 1985-08-30 JP JP13271885U patent/JPH0447764Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0447764Y2 (en) | 1992-11-11 |
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