JPH03110607U - - Google Patents
Info
- Publication number
- JPH03110607U JPH03110607U JP2018290U JP2018290U JPH03110607U JP H03110607 U JPH03110607 U JP H03110607U JP 2018290 U JP2018290 U JP 2018290U JP 2018290 U JP2018290 U JP 2018290U JP H03110607 U JPH03110607 U JP H03110607U
- Authority
- JP
- Japan
- Prior art keywords
- position signal
- track
- rotational position
- generating
- delay
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Digital Magnetic Recording (AREA)
Description
第１図は本考案の磁気再生装置を応用したＲ−
ＤＡＴの一実施例の構成を示すブロツク図、第２
図は第１図のパルス作成回路の動作を説明する波
形図、第３図は第１図の実施例におけるヘツドス
イツチングパルス、ＲＦＨＤ信号、およびサンプ
ルパルスＡＳＹＮＣの位相関係を示すタイミング
チヤート、第４図は第１図のトラツク高さ検出回
路の一実施例の構成を示すブロツク図、第５図は
第４図の実施例の動作を説明するタイミングチヤ
ート、第６図は第１図の実施例の制御回路におけ
る動作を説明する図、第７図は第１図の遅延回路
の遅延時間を調整する動作を説明するタイミング
チヤート、第８図は第１図の実施例の制御回路に
おけるデータの取り込み動作を説明するタイミン
グチヤート、第９図は従来のＲ−ＤＡＴの一例の
構成を示す平面図、第１０図ａ乃至ｃはトラツク
とヘツドトレース軌跡の説明図、第１１図はアフ
ターレコーデイングの説明図、第１２図はヘツド
スイツチングパルスの調整の説明図である。
１……ドラム、２，３……回転ヘツド、４，５
……ＰＧマグネツト、６……ＰＧ検出器、７……
磁気テープ、１１……波形整形回路、１２，１３
……遅延回路、１６……制御回路、１７……パル
ス作成回路、１８……トラツク高さ検出回路、３
１乃至３４……カウンタ、３５乃至４３……遅延
型フリツプフロツプ。
Figure 1 shows an R-
Block diagram showing the configuration of one embodiment of DAT, Part 2
The figure is a waveform diagram explaining the operation of the pulse generating circuit of FIG. 1, FIG. The figure is a block diagram showing the configuration of one embodiment of the track height detection circuit of FIG. 1, FIG. 5 is a timing chart explaining the operation of the embodiment of FIG. 4, and FIG. 6 is the embodiment of the track height detection circuit of FIG. FIG. 7 is a timing chart explaining the operation of adjusting the delay time of the delay circuit of FIG. 1, and FIG. 8 is a diagram explaining the operation of the control circuit of the embodiment of FIG. 1. A timing chart explaining the operation, FIG. 9 is a plan view showing the configuration of an example of a conventional R-DAT, FIGS. 10 a to c are explanatory diagrams of track and head trace trajectories, and FIG. 11 is an explanatory diagram of after-recording. , FIG. 12 is an explanatory diagram of the adjustment of the head switching pulse. 1... Drum, 2, 3... Rotating head, 4, 5
...PG magnet, 6...PG detector, 7...
Magnetic tape, 11... Waveform shaping circuit, 12, 13
... Delay circuit, 16 ... Control circuit, 17 ... Pulse generation circuit, 18 ... Track height detection circuit, 3
1 to 34...counter, 35 to 43...delay type flip-flop.
Claims (1)
により再生する磁気再生装置において、 前記回転ヘツドの回転位置に対応した回転位置
信号を生成する回転位置信号生成手段と、 前記回転位置信号を所定時間遅延する遅延手段
と、 前記磁気テープのトラツクの所定の位置に記録
されている信号に同期した、前記トラツクの位置
を表わすトラツク位置信号を生成するトラツク位
置信号生成手段と、 前記回転位置信号とトラツク位置信号の位相差
を検出する検出手段と、 前記検出手段の出力に対応して、前記遅延手段
の遅延時間を制御する制御手段とを備えることを
特徴とする磁気記録再生装置。[Claims for Utility Model Registration] A magnetic reproducing device for reproducing information recorded on a magnetic tape using a rotary head, comprising: a rotational position signal generating means for generating a rotational position signal corresponding to the rotational position of the rotary head; delay means for delaying the rotational position signal by a predetermined time; track position signal generating means for generating a track position signal representing the position of the track in synchronization with a signal recorded at a predetermined position on the track of the magnetic tape; A magnetic recording and reproducing device comprising: a detection means for detecting a phase difference between the rotational position signal and the track position signal; and a control means for controlling the delay time of the delay means in accordance with the output of the detection means. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018290U JPH03110607U (en) | 1990-02-27 | 1990-02-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018290U JPH03110607U (en) | 1990-02-27 | 1990-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03110607U true JPH03110607U (en) | 1991-11-13 |
Family
ID=31523277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018290U Pending JPH03110607U (en) | 1990-02-27 | 1990-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03110607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002530787A (en) * | 1998-11-16 | 2002-09-17 | エクリー コーポレーション | Tape position monitoring and adjusting method and system using control data packet |
-
1990
- 1990-02-27 JP JP2018290U patent/JPH03110607U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002530787A (en) * | 1998-11-16 | 2002-09-17 | エクリー コーポレーション | Tape position monitoring and adjusting method and system using control data packet |
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