JPH0197672U - - Google Patents
Info
- Publication number
- JPH0197672U JPH0197672U JP19245787U JP19245787U JPH0197672U JP H0197672 U JPH0197672 U JP H0197672U JP 19245787 U JP19245787 U JP 19245787U JP 19245787 U JP19245787 U JP 19245787U JP H0197672 U JPH0197672 U JP H0197672U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- synchronizing
- synchronizing signal
- output
- 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
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Synchronizing For Television (AREA)
- Television Signal Processing For Recording (AREA)
Description
第１図は本考案の一実施例を示す構成図、第２
図及び第３図はその説明のための図、第４図は従
来例の構成図、第５図はその説明のための図であ
る。
１はアドレスカウンタ、２はＲＯＭ、３は切換
スイツチ、４はＤ／Ａ変換器、５はアンプ、１１
はコンパレータ、１２はオア回路、１３はＤフリ
ツプフロツプである。
Fig. 1 is a configuration diagram showing one embodiment of the present invention;
3 and 3 are diagrams for explaining the same, FIG. 4 is a configuration diagram of a conventional example, and FIG. 5 is a diagram for explaining the same. 1 is an address counter, 2 is a ROM, 3 is a changeover switch, 4 is a D/A converter, 5 is an amplifier, 11
is a comparator, 12 is an OR circuit, and 13 is a D flip-flop.
Claims (1)
る同期信号発生手段と、 入力ビデオ信号により同期信号の終了タイミン
グを検出する検出手段と、 上記同期信号付加タイミングで一の状態となり
、上記検出手段で検出される同期信号の終了タイ
ミングまたは上記同期信号発生手段より出力され
る同期信号の終了タイミングのうちいずれか遅い
タイミング以降で他の状態となる信号を発生させ
る切換信号発生手段と、 上記入力ビデオ信号と上記同期信号発生手段の
出力信号とが供給され、上記切換信号発生手段の
出力信号が切換制御信号として供給される切換手
段とよりなり、 上記切換手段からは、上記切換信号発生手段の
出力信号が一の状態のときには上記同期信号発生
手段の出力信号が出力されると共に、他の状態の
ときには上記入力ビデオ信号が出力されるように
したことを特徴とする同期信号のすげ替え回路。[Claims for Utility Model Registration] Synchronizing signal generating means for generating a synchronizing signal from the synchronizing signal addition timing; detecting means for detecting the end timing of the synchronizing signal from an input video signal; , switching signal generating means for generating a signal that enters another state after the later of the end timing of the synchronizing signal detected by the detecting means or the end timing of the synchronizing signal output from the synchronizing signal generating means, whichever is later; , switching means to which the input video signal and the output signal of the synchronizing signal generating means are supplied, and the output signal of the switching signal generating means being supplied as a switching control signal; A synchronization signal replacement characterized in that when the output signal of the generation means is in one state, the output signal of the synchronization signal generation means is outputted, and when the output signal of the generation means is in another state, the input video signal is outputted. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19245787U JPH0197672U (en) | 1987-12-18 | 1987-12-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19245787U JPH0197672U (en) | 1987-12-18 | 1987-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0197672U true JPH0197672U (en) | 1989-06-29 |
Family
ID=31483316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19245787U Pending JPH0197672U (en) | 1987-12-18 | 1987-12-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0197672U (en) |
-
1987
- 1987-12-18 JP JP19245787U patent/JPH0197672U/ja active Pending
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