JPH0153547B2 - - Google Patents

Info

Publication number
JPH0153547B2
JPH0153547B2 JP55121130A JP12113080A JPH0153547B2 JP H0153547 B2 JPH0153547 B2 JP H0153547B2 JP 55121130 A JP55121130 A JP 55121130A JP 12113080 A JP12113080 A JP 12113080A JP H0153547 B2 JPH0153547 B2 JP H0153547B2
Authority
JP
Japan
Prior art keywords
voltage
video signal
average value
level
peak value
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.)
Expired
Application number
JP55121130A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5745779A (en
Inventor
Masaru Noda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55121130A priority Critical patent/JPS5745779A/ja
Publication of JPS5745779A publication Critical patent/JPS5745779A/ja
Publication of JPH0153547B2 publication Critical patent/JPH0153547B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
JP55121130A 1980-09-03 1980-09-03 Video signal level detection circuit Granted JPS5745779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55121130A JPS5745779A (en) 1980-09-03 1980-09-03 Video signal level detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55121130A JPS5745779A (en) 1980-09-03 1980-09-03 Video signal level detection circuit

Publications (2)

Publication Number Publication Date
JPS5745779A JPS5745779A (en) 1982-03-15
JPH0153547B2 true JPH0153547B2 (cs) 1989-11-14

Family

ID=14803611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55121130A Granted JPS5745779A (en) 1980-09-03 1980-09-03 Video signal level detection circuit

Country Status (1)

Country Link
JP (1) JPS5745779A (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2595748B2 (ja) * 1990-02-28 1997-04-02 日本ビクター株式会社 ビデオ信号レベル制御装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51114015A (en) * 1975-04-01 1976-10-07 Nippon Hoso Kyokai <Nhk> Feedback clamp circuit

Also Published As

Publication number Publication date
JPS5745779A (en) 1982-03-15

Similar Documents

Publication Publication Date Title
US4451849A (en) Plural operating mode ambient light responsive television picture control
CA1154152A (en) Video signal processing circuit
US5512948A (en) Negative-image signal processing apparatus
JPS5997281A (ja) 映像表示装置の黒映像電流レベルを自動的に制御する装置
JPS60167590A (ja) 撮像装置
JPH0153547B2 (cs)
JPS61109377A (ja) ビデオ・カメラ
JPH0586706B2 (cs)
JP2599020B2 (ja) 黒レベル補正回路
JPS6151478B2 (cs)
US5181117A (en) Automatic contrast controller of a video camera
US4764811A (en) Picture signal processing circuit
JPH09247552A (ja) 固体撮像装置の信号処理回路
JPH0695764B2 (ja) 撮像装置
JPH0693781B2 (ja) 自動白バランス制御回路
JPH01256281A (ja) オートマスタペデスタル調整回路
JPS642270B2 (cs)
JPH0247155B2 (cs)
JPS581008Y2 (ja) テレビカメラソウチ
JP2574897B2 (ja) 色検出回路及びこれを用いた画像装置
KR850000566B1 (ko) 텔레비젼의 화상 조정 회로
JPS5866406A (ja) 利得制御装置
JPS6333091A (ja) ホワイトバランス装置
JPH04318773A (ja) 露出制御装置
JPS61199390A (ja) ホワイトバランス装置