JPS6431526U - - Google Patents
Info
- Publication number
- JPS6431526U JPS6431526U JP12721787U JP12721787U JPS6431526U JP S6431526 U JPS6431526 U JP S6431526U JP 12721787 U JP12721787 U JP 12721787U JP 12721787 U JP12721787 U JP 12721787U JP S6431526 U JPS6431526 U JP S6431526U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- duty
- reproducing device
- magnetic recording
- recording
- 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 4
- 238000005070 sampling Methods 0.000 description 3
Description
第１図は本考案の一実施例に係るキヤプスタン
サーボ制御回路の位相サーボ系のブロツク回路図
、第２図は正常トラツキング時のその回路内の各
部における信号のタイミング図、第３図はトラツ
キングずれ発生時のその回路内の各部における信
号のタイミング図、第４図は小径４ヘツドドラム
を概略的に示す平面図、第５図は正常つなぎ取り
記録のトラツク並びを示す記録パターン図、第６
図はつなぎ目でトラツク並びが不連続となつたつ
なぎ取り記録のトラツク並びを示す記録パターン
図である。
１はＣＴＬヘツド、２は増幅回路、３は基準信
号形成回路、４はデユーテイ判定タイマ、５はサ
ンプリングパルス形成回路、６はフリツプフロツ
プ回路、７は１ｃｈゲート回路、８は１ｃｈ′ゲ
ート回路、９はオア回路、１０はトラツキングモ
ノマルチ回路、１１はサンプリングパルス形成回
路、１２はサンプリングゲート回路、１３は基準
台形波信号形成回路、１４はサンプルホールド回
路、１５は速度サーボ系である。
Fig. 1 is a block circuit diagram of a phase servo system of a capstan servo control circuit according to an embodiment of the present invention, Fig. 2 is a timing chart of signals in each part of the circuit during normal tracking, and Fig. 3 is a block circuit diagram of a phase servo system of a capstan servo control circuit according to an embodiment of the present invention. Fig. 4 is a plan view schematically showing a small-diameter 4-head drum; Fig. 5 is a recording pattern diagram showing the track arrangement for normal continuous recording; Fig. 6
The figure is a recording pattern diagram showing the track arrangement of spliced recordings in which the track arrangement is discontinuous at joints. 1 is a CTL head, 2 is an amplifier circuit, 3 is a reference signal forming circuit, 4 is a duty judgment timer, 5 is a sampling pulse forming circuit, 6 is a flip-flop circuit, 7 is a 1ch gate circuit, 8 is a 1ch' gate circuit, 9 is a 10 is a tracking monomulti circuit, 11 is a sampling pulse forming circuit, 12 is a sampling gate circuit, 13 is a reference trapezoidal wave signal forming circuit, 14 is a sample hold circuit, and 15 is a speed servo system.
Claims (1)
において、３０ＨｚパルスからなるＣＴＬ信号の
デユーテイを交互に異ならせて記録し、つなぎ撮
り時のキヤプスタンサーボの位相合わせにおいて
ＣＴＬ信号のデユーテイに対応するヘツドとトラ
ツクとの１５Ｈｚの位相合わせを行えるように構
成したことを特徴とする磁気記録再生装置。 In a magnetic recording/reproducing device having a small-diameter 4-head drum, recording is performed by alternating the duty of a CTL signal consisting of 30Hz pulses, and the heads and tracks corresponding to the duty of the CTL signal are used to adjust the phase of the capstan servo during continuous shooting. 1. A magnetic recording and reproducing device characterized in that it is configured to perform 15 Hz phase matching with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987127217U JPH0624022Y2 (en) | 1987-08-21 | 1987-08-21 | Magnetic recording / reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987127217U JPH0624022Y2 (en) | 1987-08-21 | 1987-08-21 | Magnetic recording / reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6431526U true JPS6431526U (en) | 1989-02-27 |
| JPH0624022Y2 JPH0624022Y2 (en) | 1994-06-22 |
Family
ID=31379448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987127217U Expired - Lifetime JPH0624022Y2 (en) | 1987-08-21 | 1987-08-21 | Magnetic recording / reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624022Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61239455A (en) * | 1985-04-16 | 1986-10-24 | Matsushita Electric Ind Co Ltd | Video tape recorder |
-
1987
- 1987-08-21 JP JP1987127217U patent/JPH0624022Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61239455A (en) * | 1985-04-16 | 1986-10-24 | Matsushita Electric Ind Co Ltd | Video tape recorder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0624022Y2 (en) | 1994-06-22 |
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