| 摘要 |
<p>Disclosed are an image sensor and a method for processing image data, specifically, which can reduce a large amount of data signals regarding high illumination and small amount of data signals regarding low illumination in order to embody an image just like the real image, by adjusting the reset s ampling section related to the data signals outputted from a unit pixel, i.e. a picture element part. The image sensor of the present invention characteristically comprises: a first switch which is operated by a reset sampling signal for sampling reset voltage when a voltage drop in an image data signal occurs, wherein the image data signal is applied from a picture element part; a first capacitor for storing the reset voltage applied from the first switch; a second switch which is operated by a data sampling signal for sampling data voltage after completion of the voltage drop in an image data signal; a second capacitor for storing the data voltage applied from the second switch; and an image data processing circuit equipped with a comparator for comparing the reset voltage with the data voltage. The method for processing image data of an image sensor according to the present invention characteristically comprises the steps of: upon the application of a row enable signal, outputting an image data signal from a picture element part; storing a sampled reset voltage, upon the application of the reset sampling signal when a voltage drop in said outputted image data signal occurs; storing a sampled data voltage, upon the application of a data sampling signal after completing the voltage drop in the image data signal; and comparing the reset voltage with the data voltage.</p> |
