DE68922872D1 - Vorrichtung und Verfahren zur Fokussierungssteuerung. - Google Patents

Vorrichtung und Verfahren zur Fokussierungssteuerung.

Info

Publication number: DE68922872D1
Authority: DE; Germany
Prior art keywords: focusing control; focusing; control
Prior art date: 1988-03-04
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 - Lifetime

Application number

DE68922872T

Other languages

English (en)

Other versions

DE68922872T2 (de

Inventor

Koji C O Patents Divis Iwamoto

Kenichi Patents Divisio Hamada

Katsuaki C O Patents Di Hirota

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.)

Sony Corp

Original Assignee

Sony Corp

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.)

1988-03-04

Filing date

1989-03-03

Publication date

1995-07-06

1988-03-04 Priority claimed from JP63051293A external-priority patent/JP2789593B2/ja

1988-03-04 Priority claimed from JP63051294A external-priority patent/JP2759955B2/ja

1988-08-29 Priority claimed from JP63214360A external-priority patent/JP2737945B2/ja

1989-03-03 Application filed by Sony Corp filed Critical Sony Corp

1995-07-06 Publication of DE68922872D1 publication Critical patent/DE68922872D1/de

1995-10-19 Application granted granted Critical

1995-10-19 Publication of DE68922872T2 publication Critical patent/DE68922872T2/de

2009-03-04 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

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
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
- H04N23/673—Focus control based on electronic image sensor signals based on contrast or high frequency components of image signals, e.g. hill climbing method
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/63—Control of cameras or camera modules by using electronic viewfinders
- H04N23/633—Control of cameras or camera modules by using electronic viewfinders for displaying additional information relating to control or operation of the camera
- H04N23/635—Region indicators; Field of view indicators

DE68922872T 1988-03-04 1989-03-03 Vorrichtung und Verfahren zur Fokussierungssteuerung. Expired - Lifetime DE68922872T2 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
JP63051293A JP2789593B2 (ja)	1988-03-04	1988-03-04	端点検出装置
JP63051294A JP2759955B2 (ja)	1988-03-04	1988-03-04	焦点制御装置
JP63214360A JP2737945B2 (ja)	1988-08-29	1988-08-29	フォーカス制御装置

Publications (2)

Publication Number	Publication Date
DE68922872D1 true DE68922872D1 (de)	1995-07-06
DE68922872T2 DE68922872T2 (de)	1995-10-19

Family

ID=27294266

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE68922872T Expired - Lifetime DE68922872T2 (de)	1988-03-04	1989-03-03	Vorrichtung und Verfahren zur Fokussierungssteuerung.

Country Status (4)

Country	Link
US (1)	US5005086A (de)
EP (1)	EP0331502B1 (de)
DE (1)	DE68922872T2 (de)
ES (1)	ES2072894T3 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2974339B2 (ja) *	1989-09-20	1999-11-10	キヤノン株式会社	自動焦点調節装置
US5341220A (en) *	1990-01-08	1994-08-23	Nikon Corporation	Still picture imaging apparatus having an improved automatic exposure control and reduction in power consumption
JPH03243071A (ja) *	1990-02-21	1991-10-30	Sony Corp	オートフォーカス回路
US5235428A (en) *	1990-02-21	1993-08-10	Sony Corporation	Auto-focus system for video camera
JP2748637B2 (ja) *	1990-03-09	1998-05-13	ソニー株式会社	オートフォーカス制御装置
EP0473462B1 (de) *	1990-08-31	1997-01-15	Victor Company Of Japan, Ltd.	Bildaufnahmevorrichtung mit Fokussierungsfunktion
JP2851713B2 (ja) *	1991-04-03	1999-01-27	シャープ株式会社	オートフォーカス装置
JP2977979B2 (ja) *	1991-11-28	1999-11-15	キヤノン株式会社	自動焦点調節装置
KR950010932B1 (ko) *	1992-02-29	1995-09-25	삼성전자주식회사	비디오 카메라의 오토메틱 포커스 회로
US5757429A (en) *	1993-06-17	1998-05-26	Sanyo Electric Co., Ltd.	Automatic focusing apparatus which adjusts the speed of focusing based on a change in the rate of the focus evaluating value
US6095421A (en) *	1994-06-30	2000-08-01	Symbol Technologies, Inc.	Apparatus and method for scanning a symbol using an intelligent laser focus control
US5664238A (en) *	1994-11-28	1997-09-02	Ricoh Company, Ltd.	Focal controller of camera
US6163340A (en) *	1995-03-27	2000-12-19	Canon Kabushiki Kaisha	Automatic focus adjusting device
US6220513B1 (en) *	1997-12-31	2001-04-24	Ncr Corporation	Methods and apparatus for determining bar code label location information
US7538815B1 (en) *	2002-01-23	2009-05-26	Marena Systems Corporation	Autofocus system and method using focus measure gradient
JP2003215440A (ja) *	2002-01-24	2003-07-30	Casio Comput Co Ltd	オートフォーカス方法、及びオートフォーカス装置
US8159561B2 (en) *	2003-10-10	2012-04-17	Nikon Corporation	Digital camera with feature extraction device
JP5292175B2 (ja) *	2009-05-15	2013-09-18	株式会社エルモ社	撮像装置、焦点調節方法
JP5445150B2 (ja) *	2010-01-12	2014-03-19	株式会社リコー	自動合焦制御装置、電子撮像装置及びデジタルスチルカメラ
CN108780261B (zh)	2016-04-15	2020-11-17	深圳市大疆创新科技有限公司	使用自适应步长的对比度检测自动聚焦
CN107277348B (zh) *	2017-06-16	2019-08-16	Oppo广东移动通信有限公司	对焦方法、装置、计算机可读存储介质和移动终端

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4342905A (en) *	1979-08-31	1982-08-03	Nippon Kogaku K.K.	Automatic focusing device of a microscope
JPS56116007A (en) *	1980-02-18	1981-09-11	Olympus Optical Co Ltd	Automatic focusing controller
JPS56132315A (en) *	1980-03-19	1981-10-16	Fuji Photo Film Co Ltd	Automatic focusing method
US4484806A (en) *	1982-04-28	1984-11-27	Matsushita Electric Industrial Co., Ltd.	Automatic focussing apparatus
JPS60183876A (ja) *	1984-03-02	1985-09-19	Konishiroku Photo Ind Co Ltd	ビデオカメラのオ−トフオ−カス装置
JPS60218613A (ja) *	1984-04-16	1985-11-01	Canon Inc	自動焦点装置
FR2580088B1 (de) *	1985-04-05	1987-05-15	Trt Telecom Radio Electr
JPS62146628A (ja)	1985-12-20	1987-06-30	Umimoto Shoten:Kk	多色印刷装置
JPS62269913A (ja) *	1987-04-24	1987-11-24	Minolta Camera Co Ltd	自動焦点調節装置

1989
- 1989-03-02 US US07/318,138 patent/US5005086A/en not_active Expired - Lifetime
- 1989-03-03 DE DE68922872T patent/DE68922872T2/de not_active Expired - Lifetime
- 1989-03-03 EP EP89302118A patent/EP0331502B1/de not_active Expired - Lifetime
- 1989-03-03 ES ES89302118T patent/ES2072894T3/es not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0331502B1 (de)	1995-05-31
EP0331502A2 (de)	1989-09-06
DE68922872T2 (de)	1995-10-19
ES2072894T3 (es)	1995-08-01
EP0331502A3 (en)	1990-02-21
US5005086A (en)	1991-04-02

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Legal Events

Date	Code	Title	Description
1996-06-27	8364	No opposition during term of opposition