JPH0181730U - - Google Patents
Info
- Publication number
- JPH0181730U JPH0181730U JP1987174471U JP17447187U JPH0181730U JP H0181730 U JPH0181730 U JP H0181730U JP 1987174471 U JP1987174471 U JP 1987174471U JP 17447187 U JP17447187 U JP 17447187U JP H0181730 U JPH0181730 U JP H0181730U
- Authority
- JP
- Japan
- Prior art keywords
- tracking
- information area
- track
- magnetic head
- width
- 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 2
Description
第１図はこの考案の一実施例の構成を示すブロ
ツク図。第２図は従来例の構成を示すブロツク図
。
１……磁気ヘツド、２……前置増幅・イコライ
ザ、３……ＡＴＦ同期信号検出回路、４……トラ
ツキングエラー生成回路、５〜７……補償回路、
８……加算器、９……モータ駆動回路、１０……
キヤプスタンモータ、１１……比較器、１２……
基準クロツク信号発振器、１３……検出スイツチ
、１４……切替スイツチ。
FIG. 1 is a block diagram showing the configuration of an embodiment of this invention. FIG. 2 is a block diagram showing the configuration of a conventional example. 1... Magnetic head, 2... Preamplifier/equalizer, 3... ATF synchronization signal detection circuit, 4... Tracking error generation circuit, 5-7... Compensation circuit,
8... Adder, 9... Motor drive circuit, 10...
Capstan motor, 11... Comparator, 12...
Reference clock signal oscillator, 13...detection switch, 14...changeover switch.
Claims (1)
を自動的にトラツキングするために、各トラツク
の所定位置にトラツキング用信号が記録された情
報域が設けられており、この情報域を回転磁気ヘ
ツドがトレースするとき隣接トラツクの情報域か
ら漏れ込むトラツキング用信号のレベルが等しく
なるようにトラツキングを行なう磁気記録再生装
置の自動トラツキング制御回路において、磁気ヘ
ツドのトレース幅とトラツク幅がほぼ等しいこと
を検出する検出手段と、検出手段による検出出力
にともなつてトラツキングエラー信号を、磁気ヘ
ツドのトレース幅よりトラツク幅の狭い磁気テー
プ再生時の帰還量より大きい帰還量の補償手段に
導く切替手段とを特徴とする自動トラツキング制
御回路。 In order to automatically track the tracks of a magnetic tape recorded with a tilted azimuth, an information area in which a tracking signal is recorded is provided at a predetermined position on each track, and when the rotating magnetic head traces this information area, In an automatic tracking control circuit of a magnetic recording and reproducing apparatus that performs tracking so that the levels of tracking signals leaking from the information area of adjacent tracks are equal, a detection means for detecting that the trace width of a magnetic head and the track width are approximately equal; , automatic switching means for guiding a tracking error signal along with a detection output from the detection means to a compensation means having a feedback amount larger than the feedback amount during reproduction of a magnetic tape whose track width is narrower than the trace width of the magnetic head. Tracking control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987174471U JPH0181730U (en) | 1987-11-17 | 1987-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987174471U JPH0181730U (en) | 1987-11-17 | 1987-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0181730U true JPH0181730U (en) | 1989-05-31 |
Family
ID=31466326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987174471U Pending JPH0181730U (en) | 1987-11-17 | 1987-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0181730U (en) |
-
1987
- 1987-11-17 JP JP1987174471U patent/JPH0181730U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MY117756A (en) | Magnetic tape and a method for recording and reproducing a plurality of different information signals on and from the magnetic tape. | |
| JPH0463455B2 (en) | ||
| KR920010590A (en) | Signal recorder | |
| JPH0738713B2 (en) | Playback device | |
| JP2756123B2 (en) | 4-head recording / reproducing method | |
| JPH0650825Y2 (en) | Data signal recording / reproducing device for video tape recorder | |
| JPH0544905Y2 (en) | ||
| JPS6030835Y2 (en) | magnetic recording and reproducing device | |
| JPH0376234U (en) | ||
| JPH0476162B2 (en) | ||
| JPS6228905A (en) | Magnetic recording and reproducing device | |
| JPS61153891A (en) | Magnetic tape and magnetic recording reproducing device | |
| JP2940691B2 (en) | Rotating head type magnetic recording / reproducing device | |
| JPS6040042U (en) | Tape position control device | |
| JPS593766A (en) | Tape feed control system | |
| JPS6179839U (en) | ||
| JPS55163627A (en) | Information recorder/reproducer | |
| JPH0576106B2 (en) | ||
| JPS63168638U (en) | ||
| JPS57186228A (en) | Automatic tracking device for magnetic recorder and reproducer | |
| JPS62119719A (en) | Tracking controller | |
| JPS6476448A (en) | Magnetic recording and reproducing device | |
| JPH0259535B2 (en) | ||
| JPH0552579B2 (en) | ||
| JPS63149431U (en) |