JPS648893U - - Google Patents
Info
- Publication number
- JPS648893U JPS648893U JP10397487U JP10397487U JPS648893U JP S648893 U JPS648893 U JP S648893U JP 10397487 U JP10397487 U JP 10397487U JP 10397487 U JP10397487 U JP 10397487U JP S648893 U JPS648893 U JP S648893U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- screen
- composite video
- video signal
- processing circuit
- 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
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 7
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Processing Of Color Television Signals (AREA)
Description
図面は本考案の映像信号処理回路を示すブロツ
ク図である。
１２……ＰＬＬ回路、１６……色信号処理回路
、１８……画面合成回路。
The drawing is a block diagram showing the video signal processing circuit of the present invention. 12...PLL circuit, 16...color signal processing circuit, 18...screen synthesis circuit.
Claims (1)
ジツト映像信号と、輝度信号及び色信号より成る
第２のコンポジツト映像信号とを、各々親画面信
号及び子画面信号、又は子画面信号及び親画面信
号として画面合成し、親画面中に子画面を同時映
出する映像信号処理回路であつて、前記第１のコ
ンポジツト映像信号のカラーバーストに位相ロツ
クした基準周波数信号を発生するＰＬＬ回路と、
前記基準周波数信号によつて駆動され、画面合成
位置における前記第１及び第２のコンポジツト映
像信号の色副搬送波の位相を連続させる色信号処
理回路と、前記画面合成位置における色副搬送波
の位相を連続させた前記第１及び第２のコンポジ
ツト映像信号を画面合成する画面合成回路とを設
けたことを特徴とする映像信号処理回路。 (2) 前記第２のコンポジツト映像信号を記録媒
体から再生する信号とし、前記色信号処理回路を
前記第２のコンポジツト映像信号の色信号を再生
する回路としたことを特徴とする実用新案登録請
求の範囲第１項記載の映像信号処理回路。[Claims for Utility Model Registration] (1) A first composite video signal consisting of a luminance signal and a chrominance signal and a second composite video signal consisting of a luminance signal and a chrominance signal are used as a main screen signal and a sub-screen signal, respectively. , or a video signal processing circuit that synthesizes the screen as a child screen signal and a main screen signal and displays the child screen simultaneously on the main screen, the reference frequency signal being phase-locked to the color burst of the first composite video signal. a PLL circuit that generates
a color signal processing circuit that is driven by the reference frequency signal and makes the phases of the color subcarriers of the first and second composite video signals continuous at the screen combination position; A video signal processing circuit comprising: a screen synthesis circuit that performs screen synthesis of the continuous first and second composite video signals. (2) A utility model registration request characterized in that the second composite video signal is a signal to be reproduced from a recording medium, and the color signal processing circuit is a circuit to reproduce the color signal of the second composite video signal. The video signal processing circuit according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10397487U JPS648893U (en) | 1987-07-07 | 1987-07-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10397487U JPS648893U (en) | 1987-07-07 | 1987-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS648893U true JPS648893U (en) | 1989-01-18 |
Family
ID=31335279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10397487U Pending JPS648893U (en) | 1987-07-07 | 1987-07-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS648893U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5731280A (en) * | 1980-08-01 | 1982-02-19 | Hitachi Ltd | Simultaneous display television receiver of colored plural screens |
| JPS61293092A (en) * | 1985-06-21 | 1986-12-23 | Toshiba Corp | Chrominance synchronizing circuit |
-
1987
- 1987-07-07 JP JP10397487U patent/JPS648893U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5731280A (en) * | 1980-08-01 | 1982-02-19 | Hitachi Ltd | Simultaneous display television receiver of colored plural screens |
| JPS61293092A (en) * | 1985-06-21 | 1986-12-23 | Toshiba Corp | Chrominance synchronizing circuit |
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