An exposure control apparatus receives a video signal from a scene pick-up image sensor and performs a divided brightness measuring for an image free. In accordance with the brightness distribution or a change amount of a scene obtained by the divided brightness measuring, the adjustment speed for a...http://www.google.es/patents/US5128769?utm_source=gb-gplus-sharePatente US5128769 - Method and apparatus for controlling exposure of video camera
Method and apparatus for controlling exposure of video camera
