Patent ID: 7154539

Claim:
An image pickup device comprising: a photoelectric sensor of interlace type having pixels arranged in the vertical and horizontal directions which converts the light focused on the pixels to electric pixel signals, an effective pixel number of said photo electric sensor in a vertical direction is twice or more than an effective number of scanning lines in a television signal standard, the pixel signals accumulated in each of the pixels are outputted with interlace by subsampling the pixel signals for every one line in a first signal read mode, and a sum of the pixel signals in the two pixels adjoining each other in the vertical direction are sequentially outputted with non-interlace in a second signal read mode, the combination of two pixels adjoining each other in the vertical direction in the second signal read mode are same every time when a sum of the pixel signals are outputted; an interlace/non-interlace converter which converts the signals with the interlace, which are output from the photoelectric sensor in the first signal read mode, to a non-interlaced signal; a signal processor which generates a first video signal by converting the non-interlaced signal converted by the interlace/non-interlace converter into a specified image format in the first signal read mode, and generating a second video signal by converting the signal output by the photoelectric sensor into the specified image format; a rate converter which converts a number of the output images of the second video signal per a unit time into another number which is more than the number of output images before conversion, from a non-interlaced scan into an interlaced scan, and converts a number of lines of the output images of the second video signal into another number which is less than the number of lines before the conversion and which is approximately equal to the number of lines of a field displayed on a monitor, wherein the monitor displays plural fields with interlace; an encoder which generates a first or second image data by compressing the first or second video signals output from the signal processor; a memory device which memorizes the first or second image data output from the encoder; and a decoder which reproduces the first video signal by decoding the first image data memorized in the memory device.