JPH0193878U - - Google Patents

Info

Publication number
JPH0193878U
JPH0193878U JP1987190275U JP19027587U JPH0193878U JP H0193878 U JPH0193878 U JP H0193878U JP 1987190275 U JP1987190275 U JP 1987190275U JP 19027587 U JP19027587 U JP 19027587U JP H0193878 U JPH0193878 U JP H0193878U
Authority
JP
Japan
Prior art keywords
circuit
low brightness
brightness detection
detection circuit
signal
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
JP1987190275U
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 JP1987190275U priority Critical patent/JPH0193878U/ja
Publication of JPH0193878U publication Critical patent/JPH0193878U/ja
Pending legal-status Critical Current

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Landscapes

  • Transforming Light Signals Into Electric Signals (AREA)
  • Picture Signal Circuits (AREA)

Description

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

第１図及び第２図は本考案の一実施例を示す図
である。第３図及び第４図は従来例を示す図であ
る。第５図及び第６図は動作を説明するための図
である。 ２１……ＡＧＣ用検波回路（低輝度検出回路）
、４０……ノイズリデユース回路（フイールドフ
レーム相関ノイズリデユース回路）、４２……ス
イツチ回路（切り換え回路）。 FIGS. 1 and 2 are diagrams showing an embodiment of the present invention. 3 and 4 are diagrams showing conventional examples. FIGS. 5 and 6 are diagrams for explaining the operation. 21...AGC detection circuit (low brightness detection circuit)
, 40... Noise reduction circuit (field frame correlation noise reduction circuit), 42... Switch circuit (switching circuit).

Claims (1)

【実用新案登録請求の範囲】 撮像信号のレベルを検出する低輝度検出回路２
１と、 この低輝度検出回路２１の出力信号に応動し、
前記撮像信号のノイズを除去するフイールドフレ
ーム相関ノイズリデユース回路４０の特性を切り
換える切り換え回路４２とを、 備えることを特徴とするカメラの画質改善回路
。[Claims for Utility Model Registration] Low brightness detection circuit 2 that detects the level of the imaging signal
1, and in response to the output signal of this low brightness detection circuit 21,
An image quality improvement circuit for a camera, comprising: a switching circuit 42 that switches characteristics of a field frame correlation noise reduction circuit 40 that removes noise from the image pickup signal.
JP1987190275U 1987-12-15 1987-12-15 Pending JPH0193878U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987190275U JPH0193878U (en) 1987-12-15 1987-12-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987190275U JPH0193878U (en) 1987-12-15 1987-12-15

Publications (1)

Publication Number Publication Date
JPH0193878U true JPH0193878U (en) 1989-06-20

Family

ID=31481262

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987190275U Pending JPH0193878U (en) 1987-12-15 1987-12-15

Country Status (1)

Country Link
JP (1) JPH0193878U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02223149A (en) * 1989-02-23 1990-09-05 Shin Kobe Electric Mach Co Ltd Manufacture of lead-acid battery

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6110369A (en) * 1984-06-26 1986-01-17 Matsushita Electric Ind Co Ltd Image signal noise reduction device
JPS6248878A (en) * 1985-08-28 1987-03-03 Sony Corp S/n improving circuit for video signal of low level

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6110369A (en) * 1984-06-26 1986-01-17 Matsushita Electric Ind Co Ltd Image signal noise reduction device
JPS6248878A (en) * 1985-08-28 1987-03-03 Sony Corp S/n improving circuit for video signal of low level

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02223149A (en) * 1989-02-23 1990-09-05 Shin Kobe Electric Mach Co Ltd Manufacture of lead-acid battery

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