In an apparatus reading out picture data from an imaging device to store the data once in a memory and reading out the data again from the memory so that the video signal may be processed for reproduction, the period during which the picture data is read out from the imaging device is regulated to be...http://www.google.ca/patents/US4819075?utm_source=gb-gplus-sharePatent US4819075 - Solid state imaging apparatus with means for controlling signal accumulation period
