Patent ID: 6803945
Filing Date: 2004-10-12
Classification: A01K,G08B,H04N

Abstract:
A web camera system for uploading pictures to a web site comprising:a video camera; a current frame buffer to hold a current image captured by the video camera; a previous frame buffer to hold a previous image captured prior to the current image; a candidate buffer to hold a most recent image for periodic uploading to the web site; logic circuitry to perform a pixel comparison between the current image and the previous image, the logic circuitry asserting a motion signal when the pixel comparison exceeds a predetermined threshold; and the web camera system operating according to one of a plurality of modes, in a first mode of operation the current image is loaded into the candidate buffer responsive to the motion signal and in a second mode of operation the current image is loaded into the candidate buffer after a certain duration has elapsed following assertion of the motion signal.