GB2322496B - Exposure control system - Google Patents

Exposure control system

Info

Publication number
GB2322496B
GB2322496B GB9703142A GB9703142A GB2322496B GB 2322496 B GB2322496 B GB 2322496B GB 9703142 A GB9703142 A GB 9703142A GB 9703142 A GB9703142 A GB 9703142A GB 2322496 B GB2322496 B GB 2322496B
Authority
GB
United Kingdom
Prior art keywords
control system
exposure control
exposure
control
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
GB9703142A
Other versions
GB2322496A (en
GB9703142D0 (en
Inventor
Fuminori Shibuya
Shigeo Sakaue
Masaaki Nakayama
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to DE19705748A priority Critical patent/DE19705748B4/en
Priority to GB9703142A priority patent/GB2322496B/en
Publication of GB9703142D0 publication Critical patent/GB9703142D0/en
Publication of GB2322496A publication Critical patent/GB2322496A/en
Application granted granted Critical
Publication of GB2322496B publication Critical patent/GB2322496B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/72—Combination of two or more compensation controls

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
GB9703142A 1997-02-14 1997-02-14 Exposure control system Expired - Fee Related GB2322496B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19705748A DE19705748B4 (en) 1997-02-14 1997-02-14 Exposure control device
GB9703142A GB2322496B (en) 1997-02-14 1997-02-14 Exposure control system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19705748A DE19705748B4 (en) 1997-02-14 1997-02-14 Exposure control device
GB9703142A GB2322496B (en) 1997-02-14 1997-02-14 Exposure control system

Publications (3)

Publication Number Publication Date
GB9703142D0 GB9703142D0 (en) 1997-04-02
GB2322496A GB2322496A (en) 1998-08-26
GB2322496B true GB2322496B (en) 2001-08-08

Family

ID=26033956

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9703142A Expired - Fee Related GB2322496B (en) 1997-02-14 1997-02-14 Exposure control system

Country Status (2)

Country Link
DE (1) DE19705748B4 (en)
GB (1) GB2322496B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3375557B2 (en) * 1999-01-29 2003-02-10 松下電器産業株式会社 Video signal processing device
GB2349534B (en) * 1999-04-27 2003-11-12 Jonathan David Hares Sinusoidal modulation of illumination and detection apparatus
DE10214809A1 (en) 2002-04-04 2003-10-23 Wolf Gmbh Richard Solid state video camera and brightness control therefor
DE10309040A1 (en) * 2003-03-01 2004-09-09 Volkswagen Ag Arrangement for exposure time optimization, especially for imaging devices for automobiles, generates exposure time signal for image acquisition device recording unit from base exposure time signal
JP4364903B2 (en) * 2004-03-17 2009-11-18 富士通マイクロエレクトロニクス株式会社 Automatic gain control circuit
JP2006086791A (en) * 2004-09-16 2006-03-30 Sanyo Electric Co Ltd Solid imaging apparatus, control circuit and control method for solid imaging device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635126A (en) * 1981-12-18 1987-01-06 Canon Kabushiki Kaisha Image pick-up system
US4959727A (en) * 1988-06-03 1990-09-25 Hitachi, Ltd. Image pick-up apparatus
US4975778A (en) * 1988-11-03 1990-12-04 Samsung Electron Devices Co., Ltd. Image pick-up apparatus including voltage controlled automatic iris control
EP0416781A2 (en) * 1989-08-25 1991-03-13 Matsushita Electric Industrial Co., Ltd. An image pickup apparatus for automatically controlling image signal output level and an image pickup method
EP0476907A2 (en) * 1990-09-11 1992-03-25 Sony Corporation Solid-state imaging devices
EP0647063A1 (en) * 1993-10-01 1995-04-05 Texas Instruments Incorporated Video processing system
GB2284318A (en) * 1993-11-26 1995-05-31 Sony Uk Ltd Electronic shutter speed control

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635126A (en) * 1981-12-18 1987-01-06 Canon Kabushiki Kaisha Image pick-up system
US4959727A (en) * 1988-06-03 1990-09-25 Hitachi, Ltd. Image pick-up apparatus
US4975778A (en) * 1988-11-03 1990-12-04 Samsung Electron Devices Co., Ltd. Image pick-up apparatus including voltage controlled automatic iris control
EP0416781A2 (en) * 1989-08-25 1991-03-13 Matsushita Electric Industrial Co., Ltd. An image pickup apparatus for automatically controlling image signal output level and an image pickup method
EP0476907A2 (en) * 1990-09-11 1992-03-25 Sony Corporation Solid-state imaging devices
EP0647063A1 (en) * 1993-10-01 1995-04-05 Texas Instruments Incorporated Video processing system
GB2284318A (en) * 1993-11-26 1995-05-31 Sony Uk Ltd Electronic shutter speed control

Also Published As

Publication number Publication date
DE19705748A1 (en) 1998-08-20
DE19705748B4 (en) 2006-06-29
GB2322496A (en) 1998-08-26
GB9703142D0 (en) 1997-04-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20110214