Signal reading circuit for masked and overlapping linear image sensors

A reading out circuit for a series of linear image sensors (11-15) having end light elements masked (11M-15M) and being arranged in a staggered line. The data is written in parallel into a series of multilocation storage elements (51-55 or 61-65), beginning with the masked light element being stored in a central location. The storing is then wrapped around so that the masked value is overwritten.