JPS6085706U - magnetic recording and reproducing device - Google Patents
magnetic recording and reproducing deviceInfo
- Publication number
- JPS6085706U JPS6085706U JP17743183U JP17743183U JPS6085706U JP S6085706 U JPS6085706 U JP S6085706U JP 17743183 U JP17743183 U JP 17743183U JP 17743183 U JP17743183 U JP 17743183U JP S6085706 U JPS6085706 U JP S6085706U
- Authority
- JP
- Japan
- Prior art keywords
- recording
- digital signal
- magnetic recording
- recording medium
- current
- 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
Landscapes
- Digital Magnetic Recording (AREA)
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２ヘツドヘリカルスキヤンビデオテープレコー
ダでＰＣＭ音声信号をオーバーラツプ記録した場合の磁
気記録パターン図、第２図はその再生波形図、第３図は
本考案の実施例を説明するための磁気記録再生装置のブ
ロック図、第４図はその各部波形図、第５図はＰＣＭ信
号を重ね書き記録した場合のＰＣＭ信号記録電流と誤り
率の関係の一例を示すグラフ、第６図は本考案を用いた
具体的実施例を示す回路図である。
１２・・・ＰＣＭプロセッサ、１５，１６，１９゜２０
、 ４１．４２・・・切換え回路、１７．１８・・・記
録増幅器、３５・・・システムプロセッサ。Fig. 1 is a diagram of a magnetic recording pattern when a PCM audio signal is recorded in overlap with a two-head helical scan video tape recorder, Fig. 2 is a diagram of its playback waveform, and Fig. 3 is a diagram of a magnetic recording pattern for explaining an embodiment of the present invention. A block diagram of the recording/reproducing device, Fig. 4 is a waveform diagram of each part thereof, Fig. 5 is a graph showing an example of the relationship between PCM signal recording current and error rate when PCM signals are overwritten and recorded, and Fig. 6 is a graph showing the relationship between the PCM signal recording current and error rate when PCM signals are overwritten and recorded. FIG. 2 is a circuit diagram showing a specific example using. 12...PCM processor, 15, 16, 19°20
, 41.42...Switching circuit, 17.18...Recording amplifier, 35...System processor.
Claims (1)
磁気記録する手段を有する磁気記録再生装置において、
前記記録媒体上に新たに前記ディジタル信号を磁気記録
する場合及び前記記録媒体上の前記ディジタル信号を消
去した後前記ディジタル信号を磁気記録する場合には、
前記ディジタル信号の有する最高周波数に相当する矩形
波信号に対し最大の再生出力が得られる最適記録電流で
記録し、前記ディジタル信号がすでに記録されている上
記磁気記録媒体上に再度上記ディジタル信号を重ね書き
記録する場合には記録電流を前記最適記録電流より増大
させるごとく切換える手段を有することを特徴とする磁
気記録再生装置。In a magnetic recording and reproducing apparatus having a magnetic recording medium and means for magnetically recording digital five signals on the magnetic recording medium,
When newly magnetically recording the digital signal on the recording medium, and when magnetically recording the digital signal after erasing the digital signal on the recording medium,
A rectangular wave signal corresponding to the highest frequency of the digital signal is recorded with an optimum recording current that provides the maximum reproduction output, and the digital signal is again superimposed on the magnetic recording medium on which the digital signal has already been recorded. 1. A magnetic recording/reproducing apparatus comprising means for switching a recording current so as to increase the recording current from the optimum recording current when writing and recording.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17743183U JPS6085706U (en) | 1983-11-18 | 1983-11-18 | magnetic recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17743183U JPS6085706U (en) | 1983-11-18 | 1983-11-18 | magnetic recording and reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6085706U true JPS6085706U (en) | 1985-06-13 |
Family
ID=30385473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17743183U Pending JPS6085706U (en) | 1983-11-18 | 1983-11-18 | magnetic recording and reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6085706U (en) |
-
1983
- 1983-11-18 JP JP17743183U patent/JPS6085706U/en active Pending
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