An image frame of a long-time exposure video signal from a solid stage imaging device outputting the long-time exposure video signal and a short-time exposure video signal on a time division basis is divided into a plurality of predetermined areas, and a first area in which a luminance level of the long-time...http://www.google.ca/patents/US6958778?utm_source=gb-gplus-sharePatent US6958778 - Iris control method and apparatus for television camera for controlling iris of lens according to video signal, and television camera using the same
