JPS6178480U - - Google Patents

Info

Publication number
JPS6178480U
JPS6178480U JP1984162656U JP16265684U JPS6178480U JP S6178480 U JPS6178480 U JP S6178480U JP 1984162656 U JP1984162656 U JP 1984162656U JP 16265684 U JP16265684 U JP 16265684U JP S6178480 U JPS6178480 U JP S6178480U
Authority
JP
Japan
Prior art keywords
circuit
horizontal
sampling
vertical
output
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.)
Granted
Application number
JP1984162656U
Other languages
English (en)
Other versions
JPH028456Y2 (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 JP1984162656U priority Critical patent/JPH028456Y2/ja
Priority to EP85113450A priority patent/EP0179455B1/en
Priority to DE8585113450T priority patent/DE3575255D1/de
Priority to US06/791,004 priority patent/US4614975A/en
Priority to KR8507890A priority patent/KR930002600B1/ko
Publication of JPS6178480U publication Critical patent/JPS6178480U/ja
Application granted granted Critical
Publication of JPH028456Y2 publication Critical patent/JPH028456Y2/ja
Expired 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/24—Resetting means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/20—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits characterised by logic function, e.g. AND, OR, NOR, NOT circuits
    • 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
    • H04N23/675—Focus control based on electronic image sensor signals comprising setting of focusing regions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Automatic Focus Adjustment (AREA)

Description

【図面の簡単な説明】
図は何れも本考案の一実施例を示し、第１図は
垂直比較回路と垂直拡張回路の要部回路図、第２
図は全体の回路ブロツク図、第３図は電子ビユー
フアインダ中の表示パターン模式的説明図、第４
図は表示信号多重回路の要部回路図、第５図はプ
リセツト回路と垂直・水平レジスタの要部回路図
を、それぞれ顕わす。 ２３…垂直拡張回路、２４…水平拡張回路、２
５…拡張サンプリングパルス発生回路、２６…サ
ンプリングパルス選択回路。

Claims (1)

  1. 【実用新案登録請求の範囲】 垂直同期信号をリセツト入力とし水平同期信号
    の分周出力を計数する垂直カウンタと、サンプリ
    ングエリアの垂直位置を記憶する垂直レジスタと
    、前記垂直カウンタと前記垂直レジスタの各出力
    の一致を検出する垂直比較回路と、水平同期信号
    をリセツト入力とし水平同期信号の逓倍出力を計
    数する水平カウンタと、サンプリングエリアの水
    平位置を記憶する水平レズスタと、前記水平カウ
    ンタと前記水平レジスタの各出力の一致を検出す
    る水平比較回路と、前記両比較回路出力の論理積
    出力をサンプリングパルスとするサンプリングパ
    ルス発生回路と、前記サンプリングパルスにより
    映像信号中の高域成分をサンプリングパルスする
    サンプリング回路と、サンプリング出力が最大と
    なる様にフオーカスリングを回動せしめるフオー
    カス制御回路と、前記ラツチ回路に任意の値をセ
    ツトするサンプリングエリア選択回路とをそれぞ
    れ配して成るビデオカメラのサンプリングエリア
    設定回路に於て、 前記垂直比較回路出力を拡張する垂直拡張回路
    と、 前記水平比較回路出力を拡張する水平拡張回路
    と、 前記両拡張回路出力の論理積出力を拡張サンプ
    リングパルスとする拡張サンプリングパルス発生
    回路と、 前記サンプリングパルスと前記拡張サンプリン
    グパルスとを選択的にサンプリング回路に供給す
    るサンプリングパルス選択回路とを それぞれ配して成るサンプリングエリア変更回
    路。
JP1984162656U 1984-10-26 1984-10-26 Expired JPH028456Y2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1984162656U JPH028456Y2 (ja) 1984-10-26 1984-10-26
EP85113450A EP0179455B1 (en) 1984-10-26 1985-10-23 Focus area change circuit
DE8585113450T DE3575255D1 (de) 1984-10-26 1985-10-23 Fokussiergebietwechselschaltung.
US06/791,004 US4614975A (en) 1984-10-26 1985-10-24 Focus area change circuit
KR8507890A KR930002600B1 (en) 1984-10-26 1985-10-25 Focus area change circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984162656U JPH028456Y2 (ja) 1984-10-26 1984-10-26

Publications (2)

Publication Number Publication Date
JPS6178480U true JPS6178480U (ja) 1986-05-26
JPH028456Y2 JPH028456Y2 (ja) 1990-02-28

Family

ID=15758772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984162656U Expired JPH028456Y2 (ja) 1984-10-26 1984-10-26

Country Status (5)

Country Link
US (1) US4614975A (ja)
EP (1) EP0179455B1 (ja)
JP (1) JPH028456Y2 (ja)
KR (1) KR930002600B1 (ja)
DE (1) DE3575255D1 (ja)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0779434B2 (ja) * 1986-05-16 1995-08-23 キヤノン株式会社 合焦検出装置
US4752831A (en) * 1986-05-20 1988-06-21 Polaroid Corporation Focusing system for camera apparatus
US4812912A (en) * 1986-05-26 1989-03-14 Minolta Camera Kabushiki Kaisha Focus detection condition display device for camera
JPH0771209B2 (ja) * 1986-06-13 1995-07-31 三洋電機株式会社 オ−トフォ−カス回路
JP2692049B2 (ja) * 1986-07-10 1997-12-17 キヤノン株式会社 焦点検出装置
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
US4904854A (en) * 1987-01-12 1990-02-27 Minolta Camera Kabushiki Kaisha Automatic focus detecting device having deviation compensation
DE3844971C2 (de) * 1987-02-04 2002-04-25 Asahi Optical Co Ltd Kamera mit einem Sucher mit einer Einrichtung zur Blickrichtungserfassung
US5097282A (en) * 1987-02-06 1992-03-17 Minolta Camera Kabushiki Kaisha Automatic focusing apparatus
US5623309A (en) * 1987-02-12 1997-04-22 Canon Kabushiki Kaisha Automatic focusing device with adaptive signal filtering
JPH0644806B2 (ja) * 1987-02-18 1994-06-08 三洋電機株式会社 オ−トフオ−カス回路
JP2605282B2 (ja) * 1987-05-21 1997-04-30 ミノルタ株式会社 自動焦点調節装置
US5243375A (en) * 1987-05-21 1993-09-07 Minolta Camera Kabushiki Kaisha Automatic focus adjusting device for adjusting the focus of the main object to be photographed
US4922346A (en) * 1987-06-30 1990-05-01 Sanyo Electric Co., Ltd. Automatic focusing apparatus having a variable focusing speed and particularly suited for use with interlaced scanning
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
US5144357A (en) * 1987-11-06 1992-09-01 Minolta Camera Kabushiki Kaisha Automatic focus detecting means
JP2662650B2 (ja) * 1987-11-06 1997-10-15 ミノルタ株式会社 自動焦点調節装置
US6014524A (en) * 1988-03-23 2000-01-11 Canon Kabushiki Kaisha Camera with visual axis detecting device
US4847687A (en) * 1988-04-18 1989-07-11 General Electric Company Video ranging system
JPH075188B2 (ja) * 1988-05-02 1995-01-25 株式会社長崎機器製作所 コンベア用払出装置
CA1317493C (en) * 1988-05-11 1993-05-11 Kenichi Kikuchi Image sensing apparatus having automatic focusing function for automatically matching focus in response to video signal
US5140359A (en) * 1988-05-16 1992-08-18 Canon Kabushiki Kaisha Multi-point distance measuring apparatus
US4974092A (en) * 1988-05-17 1990-11-27 Fuji Photo Film Co., Ltd. Automatic focusing device for a camera adopting linear sampling of a video signal
US4994843A (en) * 1988-08-25 1991-02-19 Asahi Kogaku Kogyo Kabushiki Kaisha Focus indicating apparatus of automatic focusing camera
US5258847A (en) * 1989-03-22 1993-11-02 Canon Kabushiki Kaisha Object tracing device
DE3943534A1 (de) * 1989-06-14 1991-04-25 Gert Wagner Fotoapparat mit einem spot-lichtmesssystem mit einem manuell frei verschiebbaren messfeld
DE3928549A1 (de) * 1989-06-14 1990-12-20 Gert Wagner Autofocussystem fuer fotoapparate
US5187585A (en) * 1989-08-19 1993-02-16 Canon Kabushiki Kaisha Image sensing apparatus with settable focus detection area
JPH03117275A (ja) * 1989-09-29 1991-05-20 Sanyo Electric Co Ltd オートフォーカスカメラ
JP2888563B2 (ja) * 1989-10-27 1999-05-10 旭光学工業株式会社 カメラの測距装置
DE3938522C2 (de) * 1989-11-21 1998-09-24 Philips Broadcast Television S System zum Fokussieren eines Fernsehkamera-Objektivs
JP2517415B2 (ja) * 1989-11-22 1996-07-24 三洋電機株式会社 オ―トフォ―カス方法
DE3939361A1 (de) * 1989-11-29 1991-06-06 Jens Eickhoff Spiegelreflexcamera
DE4000525A1 (de) * 1990-01-10 1991-07-11 Schickedanz Willi Teilbereichs-messeinrichtung fuer eine kamera
DE69127112T2 (de) * 1990-02-28 1998-03-05 Sanyo Electric Co Automatisches Fokussierungsgerät zur automatischen Fokusanpassung in Abhängigkeit von Videosignalen
US5264889A (en) * 1990-04-17 1993-11-23 Minolta Camera Kabushiki Kaisha Apparatus having an automatic focus detecting device
US5227833A (en) * 1990-04-17 1993-07-13 Minolta Camera Kabushiki Kaisha Apparatus having an automatic focus detecting device
FR2666949A1 (fr) * 1990-09-19 1992-03-20 Thomson Video Equip Dispositif d'assistance a la mise au point optique d'une camera de television et camera munie d'un tel dispositif.
JP2756197B2 (ja) * 1991-04-17 1998-05-25 株式会社三協精機製作所 自動合焦装置
KR0130002B1 (ko) * 1991-07-30 1998-04-11 강진구 비데오 카메라의 오토 포커싱회로 및 방법
US5570156A (en) * 1991-08-26 1996-10-29 Canon Kabushiki Kaisha Camera utilizing detection of visual line
KR950010932B1 (ko) * 1992-02-29 1995-09-25 삼성전자주식회사 비디오 카메라의 오토메틱 포커스 회로
JPH06175219A (ja) * 1992-09-25 1994-06-24 Nikon Corp カメラシステム
JPH06148714A (ja) * 1992-11-12 1994-05-27 Nikon Corp 測光状態表示装置を有するカメラ
US5563658A (en) * 1994-12-16 1996-10-08 Eastman Kodak Company Electronic camera with rapid automatic focus of an image upon an image sensor
US5668597A (en) * 1994-12-30 1997-09-16 Eastman Kodak Company Electronic camera with rapid automatic focus of an image upon a progressive scan image sensor
JPH09168113A (ja) * 1995-06-05 1997-06-24 Sony Corp オートフォーカス装置
US6275262B1 (en) * 1995-06-08 2001-08-14 Sony Corporation Focus control method and video camera apparatus
JPH0946600A (ja) * 1995-08-02 1997-02-14 Canon Inc 撮像装置
US7551223B2 (en) * 2002-12-26 2009-06-23 Sony Corporation Apparatus, method, and computer program for imaging and automatic focusing
JP4196884B2 (ja) * 2004-06-01 2008-12-17 フジノン株式会社 オートフォーカスシステム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5857867A (ja) * 1981-09-30 1983-04-06 Copal Co Ltd ビデオカメラにおける絞り制御の測光領域表示回路
JPS59105773A (ja) * 1982-12-08 1984-06-19 Sanyo Electric Co Ltd フオ−カス制御位置表示回路

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
US4320419A (en) * 1979-07-30 1982-03-16 Crosfield Electronics Limited Image reproduction equipment
JPS5683729U (ja) * 1979-11-29 1981-07-06
DE3068260D1 (en) * 1979-12-26 1984-07-19 Hughes Aircraft Co Closed loop autofocus system
US4500925A (en) * 1981-06-26 1985-02-19 Hitachi, Ltd. Auto-focusing system for video camera

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5857867A (ja) * 1981-09-30 1983-04-06 Copal Co Ltd ビデオカメラにおける絞り制御の測光領域表示回路
JPS59105773A (ja) * 1982-12-08 1984-06-19 Sanyo Electric Co Ltd フオ−カス制御位置表示回路

Also Published As

Publication number Publication date
KR930002600B1 (en) 1993-04-03
EP0179455A2 (en) 1986-04-30
US4614975A (en) 1986-09-30
EP0179455B1 (en) 1990-01-03
EP0179455A3 (en) 1987-07-22
DE3575255D1 (de) 1990-02-08
KR860003728A (ko) 1986-05-28
JPH028456Y2 (ja) 1990-02-28

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