Imaging apparatus, and a method for switching between...

Details Imaging apparatus, and a method for switching between... Imaging apparatus, and a method for switching between...

2004-11-08

2009-12-15

Ometz, David L (Department: 2622)

Television

Camera, system and detail

Low light level

C348S216100, C348S229100, C348S222100, C348S207990

Reexamination Certificate

active

07633529

ABSTRACT:
A method for, and an imaging apparatus capable of, switching between chromatic and monochromatic modes in accordance with brightness of an object being imaged. The features of the method and the apparatus include, inter alia: determining whether the present mode is a chromatic mode or a monochromatic mode; if the present mode is the monochromatic mode, determining whether a minimum illumination, which controls time for receiving an image signal from the object, is set. If the minimum illumination is set, calculating the minimum illumination value; determining whether the calculated minimum illumination is below a certain minimum illumination threshold; and if the minimum illumination value is below the minimum illumination threshold, switching from the monochromatic mode to the chromatic mode. As such, the difference between brightness levels when switching to the chromatic mode and when switching to the monochromatic mode is sufficiently large such that wrong operation can be prevented when switching between the chromatic and monochromatic modes.

REFERENCES:
patent: 5172220 (1992-12-01), Beis
patent: 6943839 (2005-09-01), Matsumoto et al.
patent: 2002/0006284 (2002-01-01), Kim
patent: 2002/0152557 (2002-10-01), Elberbaum
patent: 2004/0117729 (2004-06-01), Ariga
patent: P2001-45512 (2001-02-01), None
patent: P2002-135788 (2002-05-01), None
patent: 2003-0036484 (2003-05-01), None

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