Television pick-up and display system suitable for continuous and short-duration information pick-up and for continuous display

Claim 1

Television pick-up and display system suitable for continuous and for short-duration information pick-up and for continuous display, which system comprises a television pick-up device means for information signal generation during each field period using a line scanning raster, a repeatedly readable signal store coupled to the output of the pickup device, a display device means for displaying a television picture according to a standard having two interlaced line scanning rasters, a control circuit means coupled to said pick up device and said store for selecting either the continuous or the short-duration pick-up operation, said control circuit comprising a switchable synchronizing pulse generator means coupled to said pick-up device for applying during short-duration operation in a single field period a single line-scanning raster to the pick-up device for information signal generation, which raster has an integral number of lines and for applying to said pick-up device a standard line-scanning raster having a fractional number of lines during continuous operation, and a switching device means coupled to said control circuit for coupling during short-duration operation the pick-up device to the signal store for storing the information signal generated in the single field period in which the line scanning raster having the integral number of lines is used, and for coupling the display device to the repeatedly readable signal store containing the information of the single line scanning raster having the integral number of lines after said single field period.