Patent ID: 8319860

Claim:
An electrical device with zooming function, comprising: an image-sensing module, sensing an image; a display unit; and a processing unit, electrically connected to the image-sensing module and the display unit, comprising: an image display module, making the display unit display the sensed image; a selecting module, receiving a selection signal for selecting a reference point from the image displayed on the display unit; and a zooming-control module, making the image-sensing module sense another image, the reference point is in the center of which, by zooming, wherein the zooming-control module comprises: a digital zooming sub-module, controlling digital zooming function of the image-sensing module; and an optical zooming sub-module, controlling optical zooming function of the image-sensing module; wherein the zooming-control module makes the image-sensing module sense the image, the reference point is in the center of which utilizing the zooming functions of the digital zooming sub-module and the optical zooming sub-module zooming, wherein the zooming-control module calculates a plurality of boundaries of the image, the reference point is in the center of which, after zooming, the optical zooming sub-module zooms to at least one of the calculated boundaries to make the image-sensing module sense an optical zoomed image, and the digital zooming sub-module zooms to make the image-sensing module sense the image, the reference point is in the center of which, after zooming utilizing the optical zoomed image.