Patent ID: 7202900
Filing Date: 2007-04-10
Classification: H04N

Abstract:
1. For use in conjunction with an image sensor that produces signals representative of an image of a scene that is projected on the image sensor, the image sensor having a rectangularly arrayed pixel pattern that is progressively scanned at a particular bit rate, a method for producing an interlaced compatible signal from the progressively scanned image sensor, comprising the steps of: combining values of center pixels from the progressively scanned image sensor with the values of four horizontally and vertically adjacent pixels to generate current pixels; and producing frame pairs as follows: during one frame of a frame pair, outputting said current pixel values of every other pixel on every other line in a zig-zag pattern from adjacent line pairs of the sensor, starting at an odd numbered line, and, during the other frame of the frame pair, outputting current pixel values of every other line in a zig-zag pattern from adjacent line pairs of the sensor, starting at an even numbered line.