Automatic exposure control method of image and automatic...

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit

Reexamination Certificate

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Details

C250S370090, C378S098800

Reexamination Certificate

active

11119510

ABSTRACT:
An automatic exposure control method for an image produced on a solid-state image sensing device in which intensity of radiation light irradiated to an object to be examined from a radiation source is feedback controlled. The solid-state image sensing device comprises a picture element producing part where electric charges generated by way of photo-electric conversion when receiving exposure, and a dark current measuring part where a dark current is generated and stored without receiving exposure. The image is produced while performing radiography in a manner that the intensity of radiation light is feedback controlled so as to keep, within a predetermined density range, the amount value which is defined by removing the charge signals stored on a specified pixel element or a specified pixel element column in the dark current measuring part of the image sensing device from the charge signals stored on a specified pixel element or a specified pixel element column in the picture element producing part of the image sensing device.

REFERENCES:
patent: 5331682 (1994-07-01), Hsieh
patent: 5530238 (1996-06-01), Meulenbrugge et al.
patent: 5617462 (1997-04-01), Spratt
patent: 6351519 (2002-02-01), Bonk et al.
patent: 2002/0085672 (2002-07-01), Ganin et al.
patent: 2003/0002624 (2003-01-01), Rinaldi et al.
patent: 19734717 (1999-02-01), None
patent: 62-43990 (1987-02-01), None
patent: 6-38950 (1994-02-01), None
patent: 2000-175907 (2000-06-01), None
patent: EP 1 337 107 (2003-08-01), None

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