| 摘要 |
<p>A color video camera providing a digital video signal has an auto-focus detector (21), an auto-exposure detector (22) and an auto-white balance detector (23) formed as sections of an optical detector circuit (11) which further has serial input and output ports (28, 29) common to the auto-focus, auto-exposure and auto-white balance detectors (21, 22, 23), and a system controller (12) which is common to the auto-focus, auto-exposure and auto-white balance detectors (21, 22, 23) and provides control signals therefor through the serial input port (28) while receiving focus, exposure and white-balance detection signals through the serial output port (28) from the respective detectors. Further, an improved exposure control system (12) is provided which compensates for abnormal lighting conditions, such as back-lighting or excessive front-lighting of the scene in the field of view of the camera. <IMAGE></p> |
