JPS6245731U - - Google Patents
Info
- Publication number
- JPS6245731U JPS6245731U JP13609085U JP13609085U JPS6245731U JP S6245731 U JPS6245731 U JP S6245731U JP 13609085 U JP13609085 U JP 13609085U JP 13609085 U JP13609085 U JP 13609085U JP S6245731 U JPS6245731 U JP S6245731U
- Authority
- JP
- Japan
- Prior art keywords
- head
- changeover switch
- circuit
- switch circuit
- control pulse
- 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
- 239000013641 positive control Substances 0.000 claims 2
- 239000013642 negative control Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一例を示す図、第２図はその
動作を説明するための図である。
３２……ヘツド、３４……切換スイツチ（切換
スイツチ回路）、４２，４４……第１、第２モノ
マルチ（制御回路）、４６……のこぎり波発生回
路。
FIG. 1 is a diagram showing an example of the present invention, and FIG. 2 is a diagram for explaining its operation. 32... Head, 34... Changeover switch (changeover switch circuit), 42, 44... First and second monomulti (control circuit), 46... Sawtooth wave generation circuit.
Claims (1)
ントロールパルスの有無を検出して頭出し操作に
用いるＶＴＲに於いて、 前記コントロールトラツクに当接するヘツドと
、 前記ヘツドに接続され前記ヘツドからの信号を
出力する再生モードと、前記ヘツドに記録信号を
出力する記録モードとを備える切り換えスイツチ
回路と、 前記切り換えスイツチに接続され前記ヘツドか
らの正側コントロールパルスに基づいてのこぎり
波を発生せしめて、前記切り換えスイツチ回路に
前記記録信号として供給するのこぎり波発生回路
と、 前記正側コントロールパルスに基づいて前記切
り換えスイツチ回路を記録モードとする制御回路
とを、 備えることを特徴とする頭出し回路。[Claims for Utility Model Registration] In a VTR used for cueing operation by detecting the presence or absence of a negative control pulse read out from a control track, there is provided a head that abuts on the control track, and a head that is connected to and from the head. a changeover switch circuit having a playback mode for outputting a signal of the head and a recording mode for outputting a recording signal to the head; and a switch circuit connected to the changeover switch for generating a sawtooth wave based on a positive control pulse from the head A cueing circuit comprising: a sawtooth wave generation circuit that supplies the changeover switch circuit as the recording signal; and a control circuit that sets the changeover switch circuit to a recording mode based on the positive control pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13609085U JPS6245731U (en) | 1985-09-05 | 1985-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13609085U JPS6245731U (en) | 1985-09-05 | 1985-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6245731U true JPS6245731U (en) | 1987-03-19 |
Family
ID=31038886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13609085U Pending JPS6245731U (en) | 1985-09-05 | 1985-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6245731U (en) |
-
1985
- 1985-09-05 JP JP13609085U patent/JPS6245731U/ja active Pending
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