JPH02101338U - - Google Patents
Info
- Publication number
- JPH02101338U JPH02101338U JP628989U JP628989U JPH02101338U JP H02101338 U JPH02101338 U JP H02101338U JP 628989 U JP628989 U JP 628989U JP 628989 U JP628989 U JP 628989U JP H02101338 U JPH02101338 U JP H02101338U
- Authority
- JP
- Japan
- Prior art keywords
- video
- circuit
- signal
- gate pulse
- video signal
- 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 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Description
第１図は本考案の磁気記録再生機器におけるト
ラツキング制御装置の電気的構成を示すブロツク
線図、第２図は従来のトラツキング制御装置の電
気的構成を示すブロツク線図である。
１……ビデオヘツド、２……再生増幅回路、３
……ゲート回路、４……ＦＭ復調回路、５……同
期分離回路、６……ゲートパルス発生回路、７…
…レベル検出回路、８……制御回路、９……サー
ボ回路、１０……キヤプスタンモータ。
FIG. 1 is a block diagram showing the electrical configuration of a tracking control device in a magnetic recording/reproducing device of the present invention, and FIG. 2 is a block diagram showing the electrical configuration of a conventional tracking control device. 1...Video head, 2...Reproduction amplifier circuit, 3
...Gate circuit, 4...FM demodulation circuit, 5...Synchronization separation circuit, 6...Gate pulse generation circuit, 7...
... Level detection circuit, 8 ... Control circuit, 9 ... Servo circuit, 10 ... Capstan motor.
Claims (1)
ＦＭ記録するとともに、記録された映像信号を該
ビデオヘツドによつて再生する磁気記録再生機器
において、前記磁気テープと前記ビデオヘツドと
の位相を自動的に制御する装置であつて、 前記ビデオヘツドによつて再生された映像信号
から同期信号を分離する同期分離回路と、該同期
分離回路によつて分離された同期信号に基いてゲ
ートパルスを発生するゲートパルス発生回路と、
該ゲートパルス発生回路によつて発生されたゲー
トパルスにより前記ビデオヘツドによつて再生さ
れた映像信号にゲートをかけるゲート回路と、該
ゲート回路によつて抽出された再生映像信号のレ
ベルを検出するレベル検出回路とを備え、該レベ
ル検出回路によつて検出された信号レベルに基く
ことにより、キヤプスタンモータの回転を制御す
るようになされたことを特徴とする磁気記録再生
機器のトラツキング制御装置。[Claims for Utility Model Registration] A magnetic recording and reproducing device that records a video signal on a magnetic tape using a video head and reproduces the recorded video signal using the video head, the magnetic tape and the video A device that automatically controls the phase with the video head, the device comprising: a sync separation circuit that separates a sync signal from a video signal reproduced by the video head; and a sync signal separated by the sync separation circuit. a gate pulse generation circuit that generates a gate pulse based on the
a gate circuit that gates the video signal reproduced by the video head using the gate pulse generated by the gate pulse generation circuit; and detecting the level of the reproduced video signal extracted by the gate circuit. A tracking control device for a magnetic recording and reproducing device, comprising a level detection circuit, and controlling the rotation of a capstan motor based on the signal level detected by the level detection circuit. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP628989U JPH02101338U (en) | 1989-01-23 | 1989-01-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP628989U JPH02101338U (en) | 1989-01-23 | 1989-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02101338U true JPH02101338U (en) | 1990-08-13 |
Family
ID=31509964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP628989U Pending JPH02101338U (en) | 1989-01-23 | 1989-01-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02101338U (en) |
-
1989
- 1989-01-23 JP JP628989U patent/JPH02101338U/ja active Pending
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