JPS588266U - Character signal mixing device - Google Patents

Character signal mixing device

Info

Publication number
JPS588266U
JPS588266U JP10058281U JP10058281U JPS588266U JP S588266 U JPS588266 U JP S588266U JP 10058281 U JP10058281 U JP 10058281U JP 10058281 U JP10058281 U JP 10058281U JP S588266 U JPS588266 U JP S588266U
Authority
JP
Japan
Prior art keywords
signal
switching element
image
character
turns
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
JP10058281U
Other languages
Japanese (ja)
Inventor
猪瀬　哲男
横山　興二
Original Assignee
日本電気ホームエレクトロニクス株式会社
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 by 日本電気ホームエレクトロニクス株式会社 filed Critical 日本電気ホームエレクトロニクス株式会社
Priority to JP10058281U priority Critical patent/JPS588266U/en
Publication of JPS588266U publication Critical patent/JPS588266U/en
Pending legal-status Critical Current

Links

Landscapes

  • Studio Circuits (AREA)
  • Television Systems (AREA)
  • Processing Of Color Television Signals (AREA)

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

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

第１図は本考案に係る文字信号混合装置の一実施例を示
す回路図、第２図は各種制御信号のタイムチャート、第
３図は他の実施例を示す回路図である。 １・・・画像信号スイッチング素子、４・・・背景信号
スイッチング素子、５・・・文字信号スイッチング素子
、６・・・平均輝度低下回路、９・・・可変抵抗器。FIG. 1 is a circuit diagram showing one embodiment of a character signal mixing device according to the present invention, FIG. 2 is a time chart of various control signals, and FIG. 3 is a circuit diagram showing another embodiment. DESCRIPTION OF SYMBOLS 1... Image signal switching element, 4... Background signal switching element, 5... Character signal switching element, 6... Average brightness reduction circuit, 9... Variable resistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] テレビジョン受像機の画面に文字図形を重畳して表示す
るための文字信号混合装置において、画像制御信号に応
じて画像信号をオンオフする画像信号スイッチング素子
と、画面に表示される画像の平均輝度を低下させる平均
輝度低下回路と、背景制御信号に応じて前記平均輝度低
下回路の出力信号をオンオフしてこの出力を前記画像信
号スイッチング素子の出力端に供給する背景信号スイッ
チング素子と、文字制御信号に応じて所定レベルの直流
電圧をオンオフして文字信号として出力し、前記画像信
号スイッチング素子の出力端に供給する文字信号スイッ
チング素子とを設けた文字信号混合装置。A character signal mixing device for superimposing and displaying character figures on the screen of a television receiver includes an image signal switching element that turns on and off the image signal according to an image control signal, and an image signal switching element that turns on and off the image signal according to the image control signal, and an image signal switching element that controls the average brightness of the image displayed on the screen. a background signal switching element that turns on and off the output signal of the average brightness reduction circuit according to a background control signal and supplies the output to the output terminal of the image signal switching element; A character signal mixing device comprising a character signal switching element that turns on and off a DC voltage of a predetermined level in response to output the character signal as a character signal, and supplies the signal to an output terminal of the image signal switching element.
JP10058281U 1981-07-08 1981-07-08 Character signal mixing device Pending JPS588266U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10058281U JPS588266U (en) 1981-07-08 1981-07-08 Character signal mixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10058281U JPS588266U (en) 1981-07-08 1981-07-08 Character signal mixing device

Publications (1)

Publication Number Publication Date
JPS588266U true JPS588266U (en) 1983-01-19

Family

ID=29895266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10058281U Pending JPS588266U (en) 1981-07-08 1981-07-08 Character signal mixing device

Country Status (1)

Country Link
JP (1) JPS588266U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6086358U (en) * 1983-11-21 1985-06-14 積水化成品工業株式会社 Matsutto for judo

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56106477A (en) * 1980-01-30 1981-08-24 Pioneer Video Corp Circuit for inserting character in television screen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56106477A (en) * 1980-01-30 1981-08-24 Pioneer Video Corp Circuit for inserting character in television screen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6086358U (en) * 1983-11-21 1985-06-14 積水化成品工業株式会社 Matsutto for judo

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