Patent ID: 7274392
Filing Date: 2007-09-25
Classification: H04N

Abstract:
1. An electronic camera, comprising: an image-capturing element that outputs image-capturing signals; a shutter device that allows subject light to pass through to the image-capturing element or shields the image-capturing element from the subject light; an image-capturing circuit that engages the image-capturing element in an image-capturing operation over a first length of time to output a first image-capturing signal while the subject light is allowed to pass through to the image-capturing element and also engages the image-capturing element in an image-capturing operation over a second length of time to output a second image-capturing signal while the image-capturing element is shielded from the subject light; a signal correction circuit that executes a signal correction by subtracting the second image-capturing signal from the first image-capturing signal; and a control circuit that sets an upper limit to the second length of time of the image-capturing operation, based upon a temperature and a sensitivity of the image-capturing element, and that controls the image-capturing element so that the second length of time of the image-capturing operation executed while the image-capturing element is shielded from the subject light does not exceed the upper limit.