JPS58169781U - Playback circuit in video signal recording/playback device - Google Patents
Playback circuit in video signal recording/playback deviceInfo
- Publication number
- JPS58169781U JPS58169781U JP6507982U JP6507982U JPS58169781U JP S58169781 U JPS58169781 U JP S58169781U JP 6507982 U JP6507982 U JP 6507982U JP 6507982 U JP6507982 U JP 6507982U JP S58169781 U JPS58169781 U JP S58169781U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- playback
- charge transfer
- video signal
- transfer element
- 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
- Television Signal Processing For Recording (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (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ＶＴＲにおける従来の再生回路の一例を示すブ
ロック図。第２図は本考案の一実施例のブロック図。第
３図は本考案の一実施例の変形実施例を示すブロック図
。
１・・・回転磁気ヘッド、４・・・バイパスフィルタ、
５・・田−パスフィルタ、６・・・復調器、７・・・周
波数変換回路、８・・・混合器１．１０および１０−□
・・・パーストゲート、１１および１１−１・・・基準
発振器、１２・・・位相比較器、１４・・・Ｃ，Ｔ、Ｄ
、、１６・・・水晶発振器、１７・・・電圧制御発振器
。FIG. 1 is a block diagram showing an example of a conventional reproducing circuit in a VTR. FIG. 2 is a block diagram of an embodiment of the present invention. FIG. 3 is a block diagram showing a modified embodiment of one embodiment of the present invention. 1... Rotating magnetic head, 4... Bypass filter,
5... Data-pass filter, 6... Demodulator, 7... Frequency conversion circuit, 8... Mixer 1.10 and 10-□
... Burst gate, 11 and 11-1... Reference oscillator, 12... Phase comparator, 14... C, T, D
, 16...Crystal oscillator, 17...Voltage controlled oscillator.
Claims (1)
色信号とを混合して記録された信号を磁気ヘッドにより
検出し再生する映像信号記録再生装置において、磁気ヘ
ッドにより検出した再生信号を入力とする電荷転送素子
と、前記電荷転送素子を介して出力された再生信号中か
ら抽出した色副搬送波信号または低域周波数に変換した
色副搬送波信号のジッタを検出する検出手段と、該検出
手段の出力により発振周波数が制御される発振器とを備
え、前記発振器の発振出力を前記電荷転送素子にクロッ
ク信号として印加するようにしてなることを特徴とする
映像信号記録再生装置における再生回路。In a video signal recording and reproducing device that uses a magnetic head to detect and reproduce a signal recorded by mixing a luminance signal converted to an FM wave and a color signal converted to a low frequency, the reproduced signal detected by the magnetic head is A charge transfer element as an input, a detection means for detecting jitter in a color subcarrier signal extracted from a reproduced signal outputted through the charge transfer element or a color subcarrier signal converted to a low frequency; An oscillator whose oscillation frequency is controlled by the output of the device, and an oscillation output of the oscillator is applied to the charge transfer element as a clock signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6507982U JPS58169781U (en) | 1982-05-06 | 1982-05-06 | Playback circuit in video signal recording/playback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6507982U JPS58169781U (en) | 1982-05-06 | 1982-05-06 | Playback circuit in video signal recording/playback device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58169781U true JPS58169781U (en) | 1983-11-12 |
Family
ID=30075079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6507982U Pending JPS58169781U (en) | 1982-05-06 | 1982-05-06 | Playback circuit in video signal recording/playback device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58169781U (en) |
-
1982
- 1982-05-06 JP JP6507982U patent/JPS58169781U/en active Pending
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