| 摘要 |
<p>A method for an image sensor with built-in analog to digital converter having the steps of accumulating charge in a photo sensor (52) to arrive at a photo sensor voltage; incrementing a value in a counter (62); determining whether the photo sensor voltage is greater than the reference voltage, then loading a memory (62) with the value in a counter. What is also disclosed is an apparatus having a photo sensor (52); a comparator (56) coupled to the photo sensor; a switching element (54) coupled to the photo sensor; an AND-gate (58) coupled to the comparator (56); and a memory (60) coupled to the AND-gate (58).</p> |
