DE69027711T2 - Fokussiereinrichtung und digitale Filter dafür - Google Patents

Fokussiereinrichtung und digitale Filter dafür

Info

Publication number
DE69027711T2
DE69027711T2 DE69027711T DE69027711T DE69027711T2 DE 69027711 T2 DE69027711 T2 DE 69027711T2 DE 69027711 T DE69027711 T DE 69027711T DE 69027711 T DE69027711 T DE 69027711T DE 69027711 T2 DE69027711 T2 DE 69027711T2
Authority
DE
Germany
Prior art keywords
focusing device
digital filters
filters therefor
therefor
digital
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 - Fee Related
Application number
DE69027711T
Other languages
English (en)
Other versions
DE69027711D1 (de
Inventor
Akihiro Kikuchi
Tokuyo Fukuda
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.)
Filing date
Publication date
Priority claimed from JP1127560A external-priority patent/JP3041858B2/ja
Priority claimed from JP1135351A external-priority patent/JP2946531B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69027711D1 publication Critical patent/DE69027711D1/de
Publication of DE69027711T2 publication Critical patent/DE69027711T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/026—Averaging filters
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Automatic Focus Adjustment (AREA)
DE69027711T 1989-05-19 1990-05-18 Fokussiereinrichtung und digitale Filter dafür Expired - Fee Related DE69027711T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1127560A JP3041858B2 (ja) 1989-05-19 1989-05-19 ディジタルハイパスフィルタ
JP1135351A JP2946531B2 (ja) 1989-05-29 1989-05-29 オートフォーカス回路

Publications (2)

Publication Number Publication Date
DE69027711D1 DE69027711D1 (de) 1996-08-14
DE69027711T2 true DE69027711T2 (de) 1996-12-05

Family

ID=26463493

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69027711T Expired - Fee Related DE69027711T2 (de) 1989-05-19 1990-05-18 Fokussiereinrichtung und digitale Filter dafür

Country Status (3)

Country Link
US (1) US5070408A (de)
EP (1) EP0398368B1 (de)
DE (1) DE69027711T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3041969B2 (ja) * 1990-12-27 2000-05-15 ソニー株式会社 ビデオカメラ
JP3298146B2 (ja) * 1992-05-29 2002-07-02 ソニー株式会社 オートフォーカス装置
US5416518A (en) * 1992-08-27 1995-05-16 Sony Electronics, Inc. Camera auto focus system
DE69536129D1 (de) * 1994-04-19 2011-01-27 Eastman Kodak Co Kamera mit automatischer Belichtungssteuerung unter Verwendung von CCD-Sensor mit verstellbarem Belichtungsindex
JP3298357B2 (ja) 1995-04-10 2002-07-02 ミノルタ株式会社 フィルム画像再生装置
DE102004016733B4 (de) * 2004-04-05 2006-06-08 Siemens Ag Motorregelungsvorrichtung und entsprechendes Regelungsverfahren
JP5900273B2 (ja) * 2012-10-03 2016-04-06 株式会社ソシオネクスト 合焦評価値生成装置、合焦評価値生成方法、及び、合焦評価値生成プログラム
CN112312018B (zh) * 2016-04-15 2022-05-17 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

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3121310A1 (de) * 1981-05-29 1982-12-16 Robert Bosch Gmbh, 7000 Stuttgart Digitales filter
JPS5834615A (ja) * 1981-08-24 1983-03-01 Victor Co Of Japan Ltd Ｉｉｒデイジタルフイルタ
US4544953A (en) * 1983-03-28 1985-10-01 Designs For Vision, Inc. Automatic facusing using slope and peak detection
JPS60182289A (ja) * 1984-02-29 1985-09-17 Toshiba Corp デジタルテレビジヨン信号処理回路
JPH0771209B2 (ja) * 1986-06-13 1995-07-31 三洋電機株式会社 オ−トフォ−カス回路
DE3783435T2 (de) * 1986-10-02 1993-07-29 Victor Company Of Japan Automatisches fokussierungsverfahren.
JP2535845B2 (ja) * 1986-10-08 1996-09-18 キヤノン株式会社 自動合焦装置
US4841370A (en) * 1986-11-17 1989-06-20 Sanyo Electric Co., Ltd. Automatic focusing circuit for automatically matching focus in response to video signal
US4833541A (en) * 1987-09-07 1989-05-23 Sanyo Electric Co., Ltd. Image sensing apparatus having function of automatically matching focus and exposure in response to video signal
US4975726A (en) * 1987-11-25 1990-12-04 Matsushita Electric Industrial Co., Ltd. Automatic focusing apparatus
KR970010204B1 (en) * 1988-05-11 1997-06-23 Sanyo Electric Co Image sensing apparatus having automatic focusing function of automatically matching focus in response to video signal

Also Published As

Publication number Publication date
US5070408A (en) 1991-12-03
EP0398368B1 (de) 1996-07-10
EP0398368A3 (de) 1991-09-25
EP0398368A2 (de) 1990-11-22
DE69027711D1 (de) 1996-08-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee