Patent ID: 7589778
Filing Date: 2009-09-15
Classification: H04N

Abstract:
1. A digital camera, comprising: an imaging device driven by a plurality of kinds of drive modes, the plurality of kinds of drive modes including a draft mode and a first frame mode; an image display device having a number of pixels less than a number of pixels of the imaging device; and an enlarging display setting device configured to enlarge a part of an area of a whole image obtained by the imaging device at a desired enlargement ratio and to display the part of the area being enlarged as an enlarged image on the image display device, wherein the drive modes for driving the imaging device is changed to the first frame mode such that a resolution of the enlarged image is equal to or greater than a resolution of the image display device, the first frame mode including dividing the overall pixels of the imaging device into a plurality of fields, and reading at least one of the plurality of fields of the imaging device to obtain image data, the enlarged image being taken in from at least a portion of the image data, a timing generator configured to generate clock signals to drive the imaging device; and a clock generator configured to change clock signals input to the timing generator from one frequency to another frequency, wherein when the drive mode is changed to the first frame mode from the draft mode, a refresh rate of an image output from one frame of the imaging device is prevented from changing by changing a clock frequency output from the clock generator, and wherein when the clock frequency output from the clock generator is changed, an exposure amount is prevented from changing by keeping a pulse interval between electronic shutter pulses output to the imaging device.