JPH0243084U - - Google Patents

Info

Publication number
JPH0243084U
JPH0243084U JP1988122459U JP12245988U JPH0243084U JP H0243084 U JPH0243084 U JP H0243084U JP 1988122459 U JP1988122459 U JP 1988122459U JP 12245988 U JP12245988 U JP 12245988U JP H0243084 U JPH0243084 U JP H0243084U
Authority
JP
Japan
Prior art keywords
circuit
detection circuit
outputs
monomulti
output
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
JP1988122459U
Other languages
English (en)
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 JP1988122459U priority Critical patent/JPH0243084U/ja
Publication of JPH0243084U publication Critical patent/JPH0243084U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例を示す図、第２図、
第３図は各部の波形を示す図である。第４図は従
来のＡＦＣ検波回路方式の図、第５図はピーキン
グ回路方式の図、第６図は簡易方式の図、第７図
は水平同期分離回路の一例を示す図である。 １０……同期分離回路、２０……モノマルチ回
路、１６……検波回路、１８……比較回路。

Claims (1)

  1. 【実用新案登録請求の範囲】 映像信号が入力され水平同期信号を出力する同
    期分離回路１０と、 この同期分離回路１０の出力により動作し一定
    幅のパルス信号を出力するモノマルチ回路２０と
    、 このモノマルチ回路２０からの、パルス信号を
    直流検波する検波回路１６と、 この検波回路１６の出力と基準レベルとを比較
    する比較回路１８と、 を備えることを特徴とする入力映像信号の有無
    検出回路。
JP1988122459U 1988-09-19 1988-09-19 Pending JPH0243084U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988122459U JPH0243084U (ja) 1988-09-19 1988-09-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988122459U JPH0243084U (ja) 1988-09-19 1988-09-19

Publications (1)

Publication Number Publication Date
JPH0243084U true JPH0243084U (ja) 1990-03-26

Family

ID=31370412

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988122459U Pending JPH0243084U (ja) 1988-09-19 1988-09-19

Country Status (1)

Country Link
JP (1) JPH0243084U (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5445524A (en) * 1977-09-17 1979-04-10 Sharp Corp Signal discrimination circuit for automatic channel selector
JPS61292482A (ja) * 1985-06-19 1986-12-23 Mitsubishi Electric Corp ビデオ信号有無判定装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5445524A (en) * 1977-09-17 1979-04-10 Sharp Corp Signal discrimination circuit for automatic channel selector
JPS61292482A (ja) * 1985-06-19 1986-12-23 Mitsubishi Electric Corp ビデオ信号有無判定装置

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