KR960012962A - Backlight compensation device - Google Patents

Backlight compensation device Download PDF

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Publication number
KR960012962A
KR960012962A KR1019940024606A KR19940024606A KR960012962A KR 960012962 A KR960012962 A KR 960012962A KR 1019940024606 A KR1019940024606 A KR 1019940024606A KR 19940024606 A KR19940024606 A KR 19940024606A KR 960012962 A KR960012962 A KR 960012962A
Authority
KR
South Korea
Prior art keywords
analog
unit
image signal
digital
converter
Prior art date
Application number
KR1019940024606A
Other languages
Korean (ko)
Other versions
KR0136339B1 (en
Inventor
나대희
Original Assignee
배순훈
대우전자 주식회사
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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019940024606A priority Critical patent/KR0136339B1/en
Publication of KR960012962A publication Critical patent/KR960012962A/en
Application granted granted Critical
Publication of KR0136339B1 publication Critical patent/KR0136339B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/62—Detection or reduction of noise due to excess charges produced by the exposure, e.g. smear, blooming, ghost image, crosstalk or leakage between pixels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70—SSIS architectures; Circuits associated therewith
    • H04N25/71—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors

Abstract

CCD카메라로 피사체를 촬영하여 영상처리부에서 처리한 후, A/D변환부에서 변환하는데 역광 보정명령이 입력된 경우 레벨 시프트부에 제어신호를 보내, A/D변환부의 기준전압을 변환시켜 화면의 전체 화이트 레벨을 낮추어 A/D변환한다.The subject is photographed by the CCD camera, processed by the image processor, and then converted by the A / D converter. When a backlight correction command is input, the control signal is sent to the level shifter to convert the reference voltage of the A / D converter to A / D conversion by lowering the overall white level.

이 A/D변환된 데이타를 메모리부에 저장하고 다시 읽어들여 D/A변환부에서 아날로그 신호로 변환하고 모니터부에 출력하여 스미어 현상이나 블루밍 현상이 제거된 화면을 볼 수 있다.The A / D-converted data is stored in the memory unit, read back, converted into an analog signal by the D / A converter, and output to the monitor, where the smear phenomenon or blooming phenomenon can be seen.

Description

역광 보정장치Backlight compensation

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명에 의한 역광 보정장치의 구성을 보이는 블록도이다.1 is a block diagram showing the configuration of a backlight correction apparatus according to the present invention.

제2도는 아날로그/디지탈 변환부의 내부구성을 보이는 블록도이다.2 is a block diagram showing the internal structure of an analog / digital converter.

제3도는 레벨시프트부의 일실시예를 보이는 개략회로도이다.3 is a schematic circuit diagram showing an embodiment of the level shift unit.

Claims (2)

카메라의 역광 보정장치에 있어서, 피사체를 촬영하여 영상신호를 출력하는 OCD카메라와, 상기 CCD카메라로부터 영상신호를 받아 처리하는 영상신호 처리부와, 상기 영상신호 처리부에서 영상신호를 받아 디지탈 데이타로 변환하는 아날로그/디지탈 변환부와, 상기 아날로그/디지탈 변환부의 기준전압을 변화시키는 레벨시프트부와, 상기 아날로그/디지탈변환부의 출력데이타를 저장하는 메모리부와, 상기 메모리부로부터 디지탈 데이타를 받아 아날로그 그 신호로 변환하여 출력되는 디지탈 / 아날로그 그 변환부와, 상기 디지탈/아날로그변환부로 부터 아날로그 신호를 받아 브라운관에 표시하는 표시부와, 상기 각부를 제어하는 제어부와, 상기 제어부에 역광 보정신호를 출력하는 역광 보정키를 구비한 것을 특징으로 하는 역광보정장치A backlight compensation apparatus for a camera, comprising: an OCD camera that photographs a subject and outputs an image signal, an image signal processor that receives and processes an image signal from the CCD camera, and converts the image signal into digital data by the image signal processor. An analog / digital converter, a level shift unit for changing a reference voltage of the analog / digital converter, a memory unit for storing output data of the analog / digital converter, and digital data received from the memory unit as analog signals. A digital / analog conversion unit for converting and outputting a display unit, a display unit for receiving an analog signal from the digital / analog converter unit, displaying on a CRT, a control unit for controlling each unit, and a backlight correction key for outputting a backlight correction signal to the control unit Backlight compensation device characterized in that provided with 제1항에있어서, 상기 레벨시프트부는 상기 제어부의 제어신호에 의해 상기 아날로그/디지탈 변환부의 기준전압을 변화시키는 것을 특징으로 하는 역광보정장치The backlight compensation apparatus of claim 1, wherein the level shift unit changes a reference voltage of the analog / digital converter based on a control signal of the controller. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940024606A 1994-09-28 1994-09-28 Back light compensating apparatus KR0136339B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940024606A KR0136339B1 (en) 1994-09-28 1994-09-28 Back light compensating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940024606A KR0136339B1 (en) 1994-09-28 1994-09-28 Back light compensating apparatus

Publications (2)

Publication Number Publication Date
KR960012962A true KR960012962A (en) 1996-04-20
KR0136339B1 KR0136339B1 (en) 1998-04-27

Family

ID=19393824

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940024606A KR0136339B1 (en) 1994-09-28 1994-09-28 Back light compensating apparatus

Country Status (1)

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KR (1) KR0136339B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100415112B1 (en) * 1996-12-14 2004-03-30 삼성전자주식회사 Message managing apparatus for quickly viewing new message of mobile paging receiver and method therefor
US8654046B2 (en) 2004-06-25 2014-02-18 Samsung Display Co., Ltd. Display apparatus and displaying method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100415112B1 (en) * 1996-12-14 2004-03-30 삼성전자주식회사 Message managing apparatus for quickly viewing new message of mobile paging receiver and method therefor
US8654046B2 (en) 2004-06-25 2014-02-18 Samsung Display Co., Ltd. Display apparatus and displaying method thereof

Also Published As

Publication number Publication date
KR0136339B1 (en) 1998-04-27

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