JPS648894U - - Google Patents
Info
- Publication number
- JPS648894U JPS648894U JP10298487U JP10298487U JPS648894U JP S648894 U JPS648894 U JP S648894U JP 10298487 U JP10298487 U JP 10298487U JP 10298487 U JP10298487 U JP 10298487U JP S648894 U JPS648894 U JP S648894U
- Authority
- JP
- Japan
- Prior art keywords
- pulses
- period
- color
- control circuit
- phase control
- 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 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例の回路図、第２図は
第１図のヘツドスイツチング、カラーローテーシ
ヨン重畳パルスの構成図、第３図は本考案の他の
実施例の回路図である。
Figure 1 is a circuit diagram of one embodiment of the present invention, Figure 2 is a configuration diagram of the head switching and color rotation superimposed pulses of Figure 1, and Figure 3 is a circuit diagram of another embodiment of the present invention. be.
Claims (1)
パルスとヘツドスイツチングパルスを入力するこ
とによつて、ＶＴＲの特殊再生時に、垂直同期の
９Ｈ期間の検出により動作停止機能を、また、色
副搬送波基準位相発生期間およびヘツドアンプ切
換後の数Ｈ期間の検出により引込み高速化機能を
動作させることを特徴とする自動位相制御回路。 (2) 前記カラーローテーシヨンパルスとヘツド
スイツチングパルスの入力は、これらのパルスを
重畳して１系統入力としたことを特徴とする実用
新案登録請求の範囲第１項記載の自動位相制御回
路。[Claims for Utility Model Registration] (1) By inputting color rotation pulses and head switching pulses to the color signal processing system, an operation stop function is provided upon detection of the 9H period of vertical synchronization during special playback of a VTR. Further, an automatic phase control circuit is characterized in that a pull-in high-speed function is operated by detecting a color subcarrier reference phase generation period and a several H period after head amplifier switching. (2) The automatic phase control circuit according to claim 1, wherein the color rotation pulse and the head switching pulse are inputted in such a manner that these pulses are superimposed to form a single input system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10298487U JPS648894U (en) | 1987-07-03 | 1987-07-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10298487U JPS648894U (en) | 1987-07-03 | 1987-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS648894U true JPS648894U (en) | 1989-01-18 |
Family
ID=31333391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10298487U Pending JPS648894U (en) | 1987-07-03 | 1987-07-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS648894U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5892189A (en) * | 1981-11-27 | 1983-06-01 | Matsushita Electric Ind Co Ltd | Reproducing signal processing circuit for video tape recorder |
| JPS6066593A (en) * | 1983-09-22 | 1985-04-16 | Victor Co Of Japan Ltd | Magnetic reproducing device |
| JPS61294989A (en) * | 1985-06-21 | 1986-12-25 | Matsushita Electric Ind Co Ltd | Correction device for time base fluctuation component of chrominance signal |
-
1987
- 1987-07-03 JP JP10298487U patent/JPS648894U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5892189A (en) * | 1981-11-27 | 1983-06-01 | Matsushita Electric Ind Co Ltd | Reproducing signal processing circuit for video tape recorder |
| JPS6066593A (en) * | 1983-09-22 | 1985-04-16 | Victor Co Of Japan Ltd | Magnetic reproducing device |
| JPS61294989A (en) * | 1985-06-21 | 1986-12-25 | Matsushita Electric Ind Co Ltd | Correction device for time base fluctuation component of chrominance signal |
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