AT363527B - Fernsehkamera mit einer blendenregelung und einer regelbaren bildsignalverstaerkungsschaltung - Google Patents

Fernsehkamera mit einer blendenregelung und einer regelbaren bildsignalverstaerkungsschaltung

Info

Publication number: AT363527B
Authority: AT; Austria
Prior art keywords: image signal; amplification circuit; signal amplification; television camera; iris control
Prior art date: 1977-02-21

Application number

AT0120278A

Other languages

English (en)

Other versions

ATA120278A (de

Original Assignee

Philips Nv

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.)

1977-02-21

Filing date

1978-02-20

Publication date

1981-08-10

1978-02-20 Application filed by Philips Nv filed Critical Philips Nv

1981-01-15 Publication of ATA120278A publication Critical patent/ATA120278A/de

1981-08-10 Application granted granted Critical

1981-08-10 Publication of AT363527B publication Critical patent/AT363527B/de

Links

230000003321 amplification Effects 0.000 title 1
238000003199 nucleic acid amplification method Methods 0.000 title 1

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/72—Combination of two or more compensation controls
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/76—Circuitry for compensating brightness variation in the scene by influencing the image signals

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Color Television Image Signal Generators (AREA)
Exposure Control For Cameras (AREA)

AT0120278A 1977-02-21 1978-02-20 Fernsehkamera mit einer blendenregelung und einer regelbaren bildsignalverstaerkungsschaltung AT363527B (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7701811A NL7701811A (nl)	1977-02-21	1977-02-21	Televisiekamera voorzien van een diafragma- regeling en een regelbare beeldsignaalver- sterkingsschakeling.

Publications (2)

Publication Number	Publication Date
ATA120278A ATA120278A (de)	1981-01-15
AT363527B true AT363527B (de)	1981-08-10

Family

ID=19828014

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT0120278A AT363527B (de)	1977-02-21	1978-02-20	Fernsehkamera mit einer blendenregelung und einer regelbaren bildsignalverstaerkungsschaltung

Country Status (12)

Country	Link
US (1)	US4174526A (de)
JP (1)	JPS6022863B2 (de)
AT (1)	AT363527B (de)
AU (1)	AU511360B2 (de)
BR (1)	BR7801008A (de)
CA (1)	CA1134025A (de)
DE (1)	DE2805357C2 (de)
FR (1)	FR2381429A1 (de)
GB (1)	GB1553964A (de)
IT (1)	IT1092672B (de)
NL (1)	NL7701811A (de)
SE (1)	SE7801827L (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS56104579A (en) *	1980-01-23	1981-08-20	Nec Corp	Television camera device
US4439789A (en) *	1980-04-11	1984-03-27	Coulter Systems Corporation	Binary scan system
JPS56153327A (en) *	1980-04-28	1981-11-27	Olympus Optical Co Ltd	Iris servo device
JPS5796422U (de) *	1980-12-01	1982-06-14
JPS5797275A (en) *	1980-12-08	1982-06-16	Sony Corp	Television camera
JPS57200017A (en) *	1981-06-03	1982-12-08	Sony Corp	Aperture locking device
JPS58173980A (ja) *	1982-04-02	1983-10-12	アムペックス　コ−ポレ−ション	テレビカメラの焦点深度を変える方法
JPS59126311A (ja)	1983-01-07	1984-07-20	Sony Corp	Ａｇｃ回路
JPS6064580A (ja) *	1983-09-19	1985-04-13	Asahi Seimitsu Kk	Ｃｃｔｖカメラ用レンズの自動絞り制御装置
JPS6069967A (ja) *	1983-09-26	1985-04-20	Asahi Seimitsu Kk	Ｃｃｔｖカメラ用レンズの自動絞り制御装置
US4535758A (en) *	1983-10-07	1985-08-20	Welch Allyn Inc.	Signal level control for video system
US4833536A (en) *	1984-07-24	1989-05-23	Canon Kabushiki Kaisha	Image sensing apparatus with sensitivity and exposure control
JP2763302B2 (ja) *	1988-08-31	1998-06-11	キヤノン株式会社	カメラ、レンズユニット及び撮像装置
JP3576710B2 (ja) *	1996-07-26	2004-10-13	キヤノン株式会社	撮像システム
US7796830B2 (en) *	2006-08-15	2010-09-14	Nokia Corporation	Adaptive contrast optimization of digital color images

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE631115A (de) *	1963-04-16
US3389221A (en) *	1964-04-29	1968-06-18	Westinghouse Electric Corp	Television brightness compensation system
US3555181A (en) *	1968-06-05	1971-01-12	Bell Telephone Labor Inc	Automatic video level control employing iris and amplifier gain adjustments

1977
- 1977-02-21 NL NL7701811A patent/NL7701811A/xx not_active Application Discontinuation
1978
- 1978-02-09 DE DE2805357A patent/DE2805357C2/de not_active Expired
- 1978-02-13 US US05/877,079 patent/US4174526A/en not_active Expired - Lifetime
- 1978-02-16 CA CA297,152A patent/CA1134025A/en not_active Expired
- 1978-02-16 AU AU33358/78A patent/AU511360B2/en not_active Expired
- 1978-02-17 GB GB6396/78A patent/GB1553964A/en not_active Expired
- 1978-02-17 IT IT20382/78A patent/IT1092672B/it active
- 1978-02-17 SE SE7801827A patent/SE7801827L/xx unknown
- 1978-02-18 JP JP53017141A patent/JPS6022863B2/ja not_active Expired
- 1978-02-20 BR BR7801008A patent/BR7801008A/pt unknown
- 1978-02-20 AT AT0120278A patent/AT363527B/de not_active IP Right Cessation
- 1978-02-21 FR FR7804857A patent/FR2381429A1/fr active Granted

Also Published As

Publication number	Publication date
JPS6022863B2 (ja)	1985-06-04
FR2381429A1 (fr)	1978-09-15
DE2805357C2 (de)	1984-10-31
IT1092672B (it)	1985-07-12
ATA120278A (de)	1981-01-15
GB1553964A (en)	1979-10-17
DE2805357A1 (de)	1978-08-24
US4174526A (en)	1979-11-13
AU511360B2 (en)	1980-08-14
IT7820382A0 (it)	1978-02-17
JPS53103317A (en)	1978-09-08
CA1134025A (en)	1982-10-19
AU3335878A (en)	1979-08-23
SE7801827L (sv)	1978-08-22
FR2381429B1 (de)	1985-03-01
NL7701811A (nl)	1978-08-23
BR7801008A (pt)	1978-10-31

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Legal Events

Date	Code	Title
1982-10-15	ELJ	Ceased due to non-payment of the annual fee
1995-12-15	UEP	Publication of translation of european patent specification
2001-08-15	REN	Ceased due to non-payment of the annual fee