System and method for controlling photoflash

Details System and method for controlling photoflash System and method for controlling photoflash

2007-11-28

2010-12-07

Aggarwal, Yogesh K (Department: 2622)

Television

Camera, system and detail

With object or scene illumination

C348S371000, C348S373000, C348S374000, C348S375000, C348S376000

Reexamination Certificate

active

07847858

ABSTRACT:
A system for controlling photoflash includes a signal processing unit, a calculating unit, a photoflash module and an adjusting unit. The photoflash module includes a capacitor. The signal processing unit is configured for analyzing image information to get a current brightness value of the image, and the calculating unit is configured for calculating a first photoflash time of the photoflash module based on a first voltage value of the capacitor via analyzing the current brightness value. The adjusting unit is configured for adjusting the first photoflash time to get a second photoflash time according to a second voltage value of the capacitor, and outputting the second photoflash time to the photoflash module to control flashing of the photoflash module.

REFERENCES:
patent: 5581315 (1996-12-01), Ishiguro
patent: 6753920 (2004-06-01), Momose et al.
patent: 1811577 (2006-08-01), None
patent: 2836119 (2006-11-01), None

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