Patent ID: 7317480
Filing Date: 2008-01-08
Classification: H03M,H04N

Abstract:
1. An image sensor assembly, comprising: an array of photoreceptors, each receiving image energy from a pixel of an overall image; a dark level storage register, storing information indicative of a dark level in a pixel; and an A/D converter, which converts energy from said photoreceptors into a digital form while separately converting the information stored in the dark level storage register into a voltage level indicative of said dark level, and combining said voltage level indicative of said dark level with said energy from said photoreceptors, said digital form being indicative of the energy as compensated by said information indicative of said dark level; and a dark level determining element, determining levels of known dark elements within said array of photoreceptors, and determining an average of said levels and storing said average in said dark level storage register.