Photometric device

Details Photometric device Photometric device

2011-07-26

2011-07-26

Chan, Jason (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S222100, C348S229100, C348S297000, C348S298000

Reexamination Certificate

active

07986348

ABSTRACT:
A photometric device includes a storage-type photometric sensor, a first control means that performs accumulation control on the photometric sensor based upon an average value of an output of the photometric sensor, a second control means that performs accumulation control on the photometric sensor based upon a maximum value of the output of the photometric sensor, and an accumulation control means that controls the second control means to perform next accumulation control, if the maximum value of the output of the photometric sensor on which the accumulation control is performed by the first control means exceeds a saturation output level of the photometric sensor, and controls the first control means to perform next accumulation control, if the maximum value of the output of the photometric sensor does not exceed the saturation output level of the photometric sensor.

REFERENCES:
patent: 6670993 (2003-12-01), Yamamoto et al.
patent: 6909462 (2005-06-01), Shinotsuka et al.
patent: 7714903 (2010-05-01), Pertsel et al.
patent: 2008/0055440 (2008-03-01), Pertsel et al.
patent: B2-04-057152 (1992-09-01), None
patent: A-2006-106617 (2006-04-01), None

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