JPS6020038U - Recording/playback device - Google Patents
Recording/playback deviceInfo
- Publication number
- JPS6020038U JPS6020038U JP11294583U JP11294583U JPS6020038U JP S6020038 U JPS6020038 U JP S6020038U JP 11294583 U JP11294583 U JP 11294583U JP 11294583 U JP11294583 U JP 11294583U JP S6020038 U JPS6020038 U JP S6020038U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- recording
- pulse
- video track
- pilot
- 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
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案になる記録再生装置のパイロット信号検
出回路を示す回路図、第２図Ａ−Ｃは第１図に示したパ
イロット信号検出回路の動作を説明するための図、第３
図はスイッチ回路の出力信号の周波数成分を説明するた
めめ図、第４図はスイッチ回路の出力信号の周波数成分
の測定波形図、第５図はローカル信号発生回路を示す図
、第６図Ａ〜Ｃは他のローカル信号によるパルス振幅変
調を説明するための、図である。
、 １・・・・・・信号入力端子、２・・・・・・ロー
パスフィルタ、３・・・・・・増幅器、４・・・・・・
スイッチ、５・・・・・・ローカル信号入力端子、６・
・・・・・抵抗器、７・・・・・・スイッチ回路、８・
・・・・・バンドパスフィルタ、９・・・・・・出力端
子、１０・・・・・・バンドパスフィルタ、１１・・・
・・・出力端子、１２・・・・・・発振器、１３・・・
・・・分周回路、１４・・・・・・ドラムパルス入力端
子、１５・・・・・・フリッププロップ回路、１６・・
・・・・分周回路、１７・・・・・・ローカル信号出力
端子、１８・・・・・田−パスフィルタ、１９・・・・
・・記録用パイロット信号出力端子。FIG. 1 is a circuit diagram showing a pilot signal detection circuit of a recording/reproducing apparatus according to the present invention, FIGS. 2A to 2C are diagrams for explaining the operation of the pilot signal detection circuit shown in FIG.
The figure is a diagram for explaining the frequency component of the output signal of the switch circuit, Figure 4 is a measurement waveform diagram of the frequency component of the output signal of the switch circuit, Figure 5 is a diagram showing the local signal generation circuit, and Figure 6A -C are diagrams for explaining pulse amplitude modulation using other local signals. , 1...Signal input terminal, 2...Low pass filter, 3...Amplifier, 4...
Switch, 5...Local signal input terminal, 6.
...Resistor, 7...Switch circuit, 8.
...band pass filter, 9...output terminal, 10...band pass filter, 11...
...output terminal, 12...oscillator, 13...
...Frequency divider circuit, 14...Drum pulse input terminal, 15...Flip-prop circuit, 16...
... Frequency divider circuit, 17... Local signal output terminal, 18... Field-pass filter, 19...
...Pilot signal output terminal for recording.
Claims (1)
像信号と共にビデオトラックに記録する記録再生装置に
おいて、前記ビデオトラックよりの再生信号中より分離
されたパイロット信号と同じ周波数のパルス信号を出力
するローカル信号発生回路と、前記再生信号中より分離
されたパイロット信号が入力され前記パルス信号により
制御されるスイッチ回路とからなり、前記パルス信号を
パルス搬送波として前記パイロット信号をパルス振幅変
調して前記スイッチ回路から出力する信号より、再生ビ
デオトラックと隣接するビデオトラックとのビート周波
数を分離し、トラッキングずれを検出する記録再生装置
。In a recording and reproducing apparatus that sequentially switches pilot signals of different frequencies and records them on a video track together with a video signal for recording, a local signal generator outputs a pulse signal of the same frequency as a pilot signal separated from a reproduced signal from the video track. and a switch circuit into which a pilot signal separated from the reproduced signal is input and controlled by the pulse signal, the pulse amplitude modulates the pilot signal using the pulse signal as a pulse carrier wave, and outputs the modulated signal from the switch circuit. A recording/playback device that detects tracking deviation by separating the beat frequencies of a reproduced video track and an adjacent video track from the signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11294583U JPS6020038U (en) | 1983-07-20 | 1983-07-20 | Recording/playback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11294583U JPS6020038U (en) | 1983-07-20 | 1983-07-20 | Recording/playback device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6020038U true JPS6020038U (en) | 1985-02-12 |
Family
ID=30261643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11294583U Pending JPS6020038U (en) | 1983-07-20 | 1983-07-20 | Recording/playback device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6020038U (en) |
-
1983
- 1983-07-20 JP JP11294583U patent/JPS6020038U/en active Pending
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