JPS62119069U - - Google Patents

Info

Publication number
JPS62119069U
JPS62119069U JP520186U JP520186U JPS62119069U JP S62119069 U JPS62119069 U JP S62119069U JP 520186 U JP520186 U JP 520186U JP 520186 U JP520186 U JP 520186U JP S62119069 U JPS62119069 U JP S62119069U
Authority
JP
Japan
Prior art keywords
video signal
character
signal
sync
video
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
Application number
JP520186U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP520186U priority Critical patent/JPS62119069U/ja
Publication of JPS62119069U publication Critical patent/JPS62119069U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of drawings]

第1図および第2図は、この考案に係る映像増
幅器のキヤラクタ挿入回路の実施例を示すもので
あつて、第1図はブロツク図、第2図は主要部を
詳細にしたブロツク図である。第3図は画像表示
パターンでA,Bはこの考案の説明用のパターン
図、Cは従来のもののパターン図である。 1;映像信号の入力端、2;映像増幅部、3;
同期信号分離部、4;背景レベル補正手段、5;
キヤラクタパターン発生器、6;映像信号合成部
、7;複合映像信号の出力端。
Figures 1 and 2 show an embodiment of a character insertion circuit for a video amplifier according to this invention, with Figure 1 being a block diagram and Figure 2 being a detailed block diagram of the main parts. . FIG. 3 is an image display pattern, A and B are pattern diagrams for explaining this invention, and C is a pattern diagram of a conventional one. 1; video signal input end, 2; video amplification section, 3;
Synchronization signal separation unit, 4; Background level correction means, 5;
Character pattern generator, 6; video signal synthesis unit, 7; output end of composite video signal.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 映像信号より同期信号を分離する同期分離部と
、その同期分離部より得られた同期信号を入力し
てビデオ信号と同期したキヤラクタパターンを発
生するキヤラクタ発生器と、そのキヤラクタ発生
器より得られたキヤラクタパターンと前記ビデオ
信号とを重畳して複合映像信号を生成する映像信
号合成部と、映像信号をレベル補正しキヤラクタ
の背景レベル信号として映像信号合成部に供給す
る背景レベル補正手段とを備えたことを特徴とす
る映像増幅器のキヤラクタ挿入回路。
a sync separator that separates a sync signal from a video signal; a character generator that receives the sync signal obtained from the sync separator and generates a character pattern synchronized with the video signal; a video signal synthesis unit that generates a composite video signal by superimposing the character pattern and the video signal; and a background level correction unit that corrects the level of the video signal and supplies it to the video signal synthesis unit as a background level signal of the character. A character insertion circuit for a video amplifier.
JP520186U 1986-01-20 1986-01-20 Pending JPS62119069U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP520186U JPS62119069U (en) 1986-01-20 1986-01-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP520186U JPS62119069U (en) 1986-01-20 1986-01-20

Publications (1)

Publication Number Publication Date
JPS62119069U true JPS62119069U (en) 1987-07-28

Family

ID=30786565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP520186U Pending JPS62119069U (en) 1986-01-20 1986-01-20

Country Status (1)

Country Link
JP (1) JPS62119069U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01228277A (en) * 1988-03-08 1989-09-12 Sony Corp Video display device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50106516A (en) * 1973-12-25 1975-08-22
JPS52138834A (en) * 1976-05-14 1977-11-19 Mitsubishi Electric Corp Multiple signal reproducer
JPS6068781A (en) * 1984-07-26 1985-04-19 Matsushita Electric Ind Co Ltd Character broadcast receiver

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50106516A (en) * 1973-12-25 1975-08-22
JPS52138834A (en) * 1976-05-14 1977-11-19 Mitsubishi Electric Corp Multiple signal reproducer
JPS6068781A (en) * 1984-07-26 1985-04-19 Matsushita Electric Ind Co Ltd Character broadcast receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01228277A (en) * 1988-03-08 1989-09-12 Sony Corp Video display device

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