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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