JPS609006U - magnetic recording and playback device - Google Patents
magnetic recording and playback deviceInfo
- Publication number
- JPS609006U JPS609006U JP9985283U JP9985283U JPS609006U JP S609006 U JPS609006 U JP S609006U JP 9985283 U JP9985283 U JP 9985283U JP 9985283 U JP9985283 U JP 9985283U JP S609006 U JPS609006 U JP S609006U
- Authority
- JP
- Japan
- Prior art keywords
- bias current
- magnetic recording
- variable
- output
- low frequency
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の磁気録音再生装置を示すブロック図、第
２図は従来の磁気録音再生装置の作用の説明に供するフ
ローチャート、第３図は本考案の一実施例を示すブロッ
ク図、第４図および第５図は本考案の一実施例の作用の
説明に供する特性図である。
１・・・・・・バイアス発振器、２′・・・・・・低域
発振器、３・・・・・・高域発振器、４・・・・・・再
生レベル検出回路、５・・・・・・ＣＰＵ、 ７・・・
・・・録音ヘッド、８・・・・・・再生ヘッド、１０・
・・・・・バイアス電流可変回路、１１・・・・・・録
音イコライザ、１６・・・・・・テープセレクタスイッ
チ。FIG. 1 is a block diagram showing a conventional magnetic recording/playback device, FIG. 2 is a flowchart explaining the operation of the conventional magnetic recording/playback device, FIG. 3 is a block diagram showing an embodiment of the present invention, and FIG. 5 and 5 are characteristic diagrams for explaining the operation of an embodiment of the present invention. 1...Bias oscillator, 2'...Low frequency oscillator, 3...High frequency oscillator, 4...Reproduction level detection circuit, 5... ...CPU, 7...
... Recording head, 8... Playback head, 10.
... Bias current variable circuit, 11 ... Recording equalizer, 16 ... Tape selector switch.
Claims (1)
電流可変回路の出力と低域周波数発振器の出力とを重畳
した信号を磁気テープに記録し、該磁気テープを再生し
たときにおいて最大再生出力レベルを呈するときのバイ
アス電流値にバイアス電流可変回路を設定する最適バイ
アス電流設定手段を備えた磁気録音再生装置において、
低域周波数発振器の発振周波数を可変に構成し、かつ磁
気テープの種類に対応して低周波数発振器の発振周波数
を切換えるように構成してなることを特徴とする磁気録
音再生装置。By sequentially changing the output of the variable bias current circuit, a signal obtained by superimposing the output of the variable bias current circuit and the output of the low frequency oscillator is recorded on a magnetic tape, and when the magnetic tape is played back, a maximum playback output level is obtained. In a magnetic recording and reproducing device equipped with an optimum bias current setting means for setting a bias current variable circuit to a bias current value of
A magnetic recording and reproducing device characterized in that the oscillation frequency of a low frequency oscillator is configured to be variable, and the oscillation frequency of the low frequency oscillator is configured to be switched in accordance with the type of magnetic tape.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9985283U JPS609006U (en) | 1983-06-28 | 1983-06-28 | magnetic recording and playback device |
| US06/625,141 US4611253A (en) | 1983-06-28 | 1984-06-27 | Magnetic recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9985283U JPS609006U (en) | 1983-06-28 | 1983-06-28 | magnetic recording and playback device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS609006U true JPS609006U (en) | 1985-01-22 |
Family
ID=30236457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9985283U Pending JPS609006U (en) | 1983-06-28 | 1983-06-28 | magnetic recording and playback device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS609006U (en) |
-
1983
- 1983-06-28 JP JP9985283U patent/JPS609006U/en active Pending
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