Photography – Exposure control circuit
Reexamination Certificate
2007-01-23
2007-01-23
Perkey, W. B. (Department: 2851)
Photography
Exposure control circuit
C396S429000, C353S070000, C348S061000, C348S362000, C382S100000
Reexamination Certificate
active
10944139
ABSTRACT:
A projector includes an image projection section which projects a white image and a black image, a sensor which has an exposure adjustment function, generates first sensing information by sensing the white image, and generates second sensing information by sensing the black image, a sensing condition setting section which controls exposure of the sensor so that the sensor senses the white image at an automatic exposure setting and senses the black image at the exposure setting determined when sensing the white image, a difference information generation section which generates difference information based on the first sensing information and the second sensing information, and an endpoint detection section which detects an endpoint of a projection region in a sensing region based on the difference information.
REFERENCES:
patent: 6057881 (2000-05-01), Kawashima et al.
patent: 6932479 (2005-08-01), Kobayashi et al.
patent: 6932480 (2005-08-01), Wada et al.
patent: 6939011 (2005-09-01), Kobayashi
patent: 2003/0058252 (2003-03-01), Matsuda et al.
patent: 1 065 885 (2001-01-01), None
patent: A 6-269015 (1994-09-01), None
patent: A 6-276532 (1994-09-01), None
patent: A 8-271852 (1996-10-01), None
patent: A 10-200836 (1998-07-01), None
patent: A 2001-61121 (2001-03-01), None
patent: A 2001-83949 (2001-03-01), None
patent: A 2003-108109 (2003-04-01), None
patent: A 2004-48694 (2004-02-01), None
patent: A 2004-48695 (2004-02-01), None
patent: WO 02/47395 (2002-06-01), None
Matsuda Hideki
Yoneno Kunio
Oliff & Berridg,e PLC
Perkey W. B.
Seiko Epson Corporation
LandOfFree
Image processing system, projector, information storage... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image processing system, projector, information storage..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing system, projector, information storage... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3756019