JPS5967072U - Video signal recording and playback device - Google Patents
Video signal recording and playback deviceInfo
- Publication number
- JPS5967072U JPS5967072U JP16362582U JP16362582U JPS5967072U JP S5967072 U JPS5967072 U JP S5967072U JP 16362582 U JP16362582 U JP 16362582U JP 16362582 U JP16362582 U JP 16362582U JP S5967072 U JPS5967072 U JP S5967072U
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- delayed
- playback
- scanning period
- switching
- 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
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、高速早送り再生モード時における映像信号の
水平同期信号位置とクロマバースト位相との関係を示す
図である。第２図は、高速巻戻し再生モード時における
映像信号の水平同期信号位置とクロマバースト位相との
関係を示す図である。
第３図はこの考案の一実施例を示すブロック図である。
第４図は、第３図の実施例の動作を説明するためのタイ
ムチャートある。
図において、１は入力端子、２および３はモード信号入
力端子４はＩＨ遅延回路、５は第１の切換スイッチ、６
は０．５Ｈ遅延回路、７は第２の切換スイッチ、８は第
３の切換スイッチ、９は０゜５Ｈスキユ一検出回路、１
０はスイッチ制御回路を示す。
０．５）１スｂ５
ｒ−−１２−一）
／ ＼／＼ ／ ＼／＼ ／＼FIG. 1 is a diagram showing the relationship between the horizontal synchronization signal position of a video signal and the chroma burst phase in the high-speed fast forward playback mode. FIG. 2 is a diagram showing the relationship between the horizontal synchronization signal position of the video signal and the chroma burst phase in the high-speed rewind playback mode. FIG. 3 is a block diagram showing an embodiment of this invention. FIG. 4 is a time chart for explaining the operation of the embodiment shown in FIG. In the figure, 1 is an input terminal, 2 and 3 are mode signal input terminals, 4 is an IH delay circuit, 5 is a first changeover switch, and 6
is a 0.5H delay circuit, 7 is a second changeover switch, 8 is a third changeover switch, 9 is a 0°5H skew detection circuit, 1
0 indicates a switch control circuit. 0.5) 1st b5 r--12-1) / \/\ / \/\ /\
Claims (1)
相隣合わないようなフォーマットでＰＡＬ方式の映像信
号が記録された磁気テープから前記映像信号を再生する
映像信号記録再生装置において、 前記磁気テープから再生された再生映像信号を入力する
手段、 １水平走査期間の遅延時間を有し、前記再生映像信号を
該遅延時間だけ遅延させる第１の遅延手段、 前記再生映像信号と前記第１の遅延手段出力とを選択的
に切換える第１の切換手段、 １水平走差期間の１７２の遅延時間を有し、前記第１の
遅延手段出力を該遅延時間だけ遅延させる第２の遅延手
段、 前記第１の遅延手段出力と前記第２の遅延手段出力とを
選択的に切換える第２の切換手段、前記再生映像信号と
前記第２の切換手段出力とを選択的に切換える第３の切
換手段、 前記再生映像信号に含まれる水平同期信号の間隔が正常
な間隔からずれたことを検出する手段、および、 前記第１の切換手段と前記第２の切換手段と前記第３の
切換手段の切換を制御して映像信号の出力順序を切換え
る手段を備え、 前記出力順序切換手段は、 前記高速早送り再生モードのとき、前記検出手段出力に
応答して遅延されていない再生映像信号、１水平走査期
間の１７２遅延された再生映像信号、１水平走査期間遅
延された再生映像信号、１水平走査期間の１．５倍遅延
された再生映像信号、遅延されていない再生映像信号の
順番で映像信号を順次切換え、 前記高速巻戻し再生モードのとき、前記検出手段出力に
応答して遅延されていない再生映像信号、１水平走査期
間の１．５倍遅延された再生映像信号、１水平走査期間
遅延された再生映像信号、１水平走査期間の１７２遅延
された再生映像信号遅延されていない再生映像信号の順
番で再生映像信号を順次切換える、映像信号記録再生装
置。[Claims for Utility Model Registration] Video signal recording for reproducing PAL video signals from a magnetic tape on which PAL video signals are recorded in a format in which the recording positions of horizontal synchronizing signals are not adjacent between adjacent video tracks. In the playback device, the playback device includes: means for inputting the playback video signal played back from the magnetic tape; a first delay unit having a delay time of one horizontal scanning period and delaying the playback video signal by the delay time; and the playback video signal. a first switching means for selectively switching between a signal and the output of the first delay means; a first switching means having a delay time of 172 for one horizontal scanning period; and a first switching means for delaying the output of the first delay means by the delay time; 2 delay means, a second switching means for selectively switching between the output of the first delay means and the output of the second delay means, and a second switching means for selectively switching between the reproduced video signal and the output of the second switching means; a third switching means, a means for detecting that an interval between horizontal synchronization signals included in the reproduced video signal deviates from a normal interval; and the first switching means, the second switching means, and the third switching means. means for switching the output order of the video signals by controlling switching of the switching means, and the output order switching means, in the high-speed fast forward playback mode, outputs the undelayed playback video signal in response to the output of the detection means. , a reproduced video signal delayed by 172 times of one horizontal scanning period, a reproduced video signal delayed by one horizontal scanning period, a reproduced video signal delayed by 1.5 times one horizontal scanning period, and a reproduced video signal that is not delayed. to sequentially switch video signals, and when in the high-speed rewind playback mode, in response to the output of the detection means, a playback video signal that is not delayed, a playback video signal that is delayed by 1.5 times one horizontal scanning period, and a playback video signal that is delayed by 1.5 times one horizontal scanning period; A video signal recording and reproducing device that sequentially switches a reproduced video signal in the order of a reproduced video signal delayed by a scanning period, a reproduced video signal delayed by 172 of one horizontal scanning period, and a reproduced video signal not delayed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16362582U JPS5967072U (en) | 1982-10-26 | 1982-10-26 | Video signal recording and playback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16362582U JPS5967072U (en) | 1982-10-26 | 1982-10-26 | Video signal recording and playback device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5967072U true JPS5967072U (en) | 1984-05-07 |
Family
ID=30358967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16362582U Pending JPS5967072U (en) | 1982-10-26 | 1982-10-26 | Video signal recording and playback device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5967072U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6047587A (en) * | 1983-08-26 | 1985-03-14 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
| JPS6047586A (en) * | 1983-08-26 | 1985-03-14 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
-
1982
- 1982-10-26 JP JP16362582U patent/JPS5967072U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6047587A (en) * | 1983-08-26 | 1985-03-14 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
| JPS6047586A (en) * | 1983-08-26 | 1985-03-14 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
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