JPS63174780U - - Google Patents
Info
- Publication number
- JPS63174780U JPS63174780U JP18306786U JP18306786U JPS63174780U JP S63174780 U JPS63174780 U JP S63174780U JP 18306786 U JP18306786 U JP 18306786U JP 18306786 U JP18306786 U JP 18306786U JP S63174780 U JPS63174780 U JP S63174780U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- creating
- synchronization signal
- horizontal synchronization
- magnetic recording
- 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
- 238000000926 separation method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
Landscapes
- Television Signal Processing For Recording (AREA)
Description
第１図は本考案の磁気記録再生装置にけおる水
平同期信号の判別回路部分を示す概略ブロツク図
、第２図は１フイールド目のビデオ信号が入力さ
れた場合の信号波形図、第３図は２フイールド目
のビデオ信号が入力された場合の各部の信号波形
図である。
１…同期分離回路、２…水平同期信号発生回路
、３…１／２分周器、４…Ｄ…フリツプフロツプ
、５…入力端子、６…出力端子。
Fig. 1 is a schematic block diagram showing the horizontal synchronization signal discriminating circuit part of the magnetic recording/reproducing apparatus of the present invention, Fig. 2 is a signal waveform diagram when the first field video signal is input, and Fig. 3 is a signal waveform diagram of each part when the second field video signal is input. DESCRIPTION OF SYMBOLS 1... Synchronization separation circuit, 2... Horizontal synchronization signal generation circuit, 3... 1/2 frequency divider, 4... D... Flip-flop, 5... Input terminal, 6... Output terminal.
Claims (1)
、記録されたビデオ信号の再生、消去を行う磁気
記録再生装置において、 前記ビデオ信号から水平同期信号と垂直同期信
号とを分離する同期分離手段と、分離された垂直
同期信号に基いて擬似水平同期信号を作成する擬
似水平同期信号作成手段と、この擬似水平同期信
号と前記垂直同期信号とに基いて分離された前記
水平同期信号の位相を判別するためのトリガー信
号を作成するトリガー信号作成手段と、このトリ
ガー信号と前記垂直同期信号及び前記水平同期信
号とに基いて該水平同期信号の位相判別信号を作
成する位相判別信号作成手段とを備えたことを特
徴とする磁気記録再生装置。[Claims for Utility Model Registration] In a magnetic recording and reproducing device that records a video signal on a magnetic recording medium and also plays and erases the recorded video signal, a horizontal synchronizing signal and a vertical synchronizing signal are separated from the video signal. synchronization separation means for creating a pseudo horizontal synchronization signal based on the separated vertical synchronization signal; and pseudo horizontal synchronization signal creation means for creating a pseudo horizontal synchronization signal based on the separated vertical synchronization signal; Trigger signal creation means for creating a trigger signal for determining the phase of a signal; and a phase determination signal for creating a phase determination signal for the horizontal synchronization signal based on the trigger signal, the vertical synchronization signal, and the horizontal synchronization signal. 1. A magnetic recording and reproducing device comprising: a creating means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18306786U JPS63174780U (en) | 1986-11-27 | 1986-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18306786U JPS63174780U (en) | 1986-11-27 | 1986-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63174780U true JPS63174780U (en) | 1988-11-14 |
Family
ID=31129459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18306786U Pending JPS63174780U (en) | 1986-11-27 | 1986-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63174780U (en) |
-
1986
- 1986-11-27 JP JP18306786U patent/JPS63174780U/ja active Pending
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