An apparatus for generating a focus data in an image sensor, the apparatus includes a green interpolation unit for generating a M×N green plane from the RGB bayer pattern of a predetermined selected image window through a green interpolation; and a focus data generation unit for extracting the focus...http://www.google.com/patents/US7916207?utm_source=gb-gplus-sharePatent US7916207 - Apparatus and method for generating focus data in an image sensor