Television – Camera – system and detail – With object or scene illumination
Reexamination Certificate
2003-07-21
2008-08-19
Tran, Nhan T (Department: 2622)
Television
Camera, system and detail
With object or scene illumination
C348S362000, C348S364000
Reexamination Certificate
active
07414666
ABSTRACT:
A portable camera-phone has a strobe consisting of LEDs emitting light with a determined quantity of light emission, as an auxiliary light source for image pick-up of an object by a camera. In an image pick-up mode, the light emission quantity is adjusted repeatedly until a total exposure value matches an optimal exposure value, based on a difference between a total exposure value of an image signal output from the camera with the light emission quantity determined last time and a total exposure value when emission is OFF. Therefore, in the image pick-up mode, two reference values are used for determining the light emission quantity to have the total exposure value match the optimal exposure value, and hence the light emission quantity can be determined with high accuracy. As a result, an optimal exposure level can be obtained with high accuracy.
REFERENCES:
patent: 5438367 (1995-08-01), Yamamoto et al.
patent: 5504584 (1996-04-01), Soeda
patent: 5860029 (1999-01-01), Ichikawa et al.
patent: 6069659 (2000-05-01), Nakajima
patent: 6167022 (2000-12-01), Fukui
patent: 6272292 (2001-08-01), Iwasaki et al.
patent: 6351606 (2002-02-01), Yamazaki
patent: 6546203 (2003-04-01), Hofer
patent: 6654062 (2003-11-01), Numata et al.
patent: 7092029 (2006-08-01), Medwick et al.
patent: 2001/0019364 (2001-09-01), Kawahara
patent: 2002/0063783 (2002-05-01), Kurase
patent: 2002/0067422 (2002-06-01), Miura et al.
patent: 2002/0197071 (2002-12-01), Hofer
patent: 2003/0107669 (2003-06-01), Ito et al.
patent: 2004/0066461 (2004-04-01), Maeda
patent: 1318669 (2003-06-01), None
patent: 2 354 832 (2001-04-01), None
patent: 58-83864 (1983-06-01), None
patent: 58-147722 (1983-09-01), None
patent: 60-6930 (1985-01-01), None
patent: 6-222429 (1994-08-01), None
patent: 07-072536 (1995-03-01), None
patent: 9-61911 (1997-03-01), None
patent: 11-119288 (1999-04-01), None
patent: 11205666 (1999-07-01), None
patent: 2000-122128 (2000-04-01), None
patent: 2000-156833 (2000-06-01), None
patent: 2000-187266 (2000-07-01), None
patent: 2000-267151 (2000-09-01), None
patent: 2001-230970 (2001-08-01), None
patent: 2001-343579 (2001-12-01), None
patent: 2002-162997 (2002-06-01), None
Birch & Stewart Kolasch & Birch, LLP
Sharp Kabushiki Kaisha
Tran Nhan T
LandOfFree
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