05093716 is referenced by 56 patents and cites 4 patents.

A color video camera providing a digital video signal has an auto-focus detector, an auto-exposure detector and an auto-white balance detector formed as sections of an optical detector circuit which further has serial input and output ports common to the auto-focus, auto-exposure and auto-white balance detectors, and a system controller which is common to the auto-focus, auto-exposure and auto-white balance detectors and provides control signals therefor through the serial input port while receiving focus, exposure and white-balance detection signals through the serial output port from the respective detectors. Further, an improved exposure control system 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.

Title
Digital color video camera with auto-focus, auto-exposure and auto-white balance, and an auto exposure system therefor which compensates for abnormal lighting
Application Number
7/653364
Publication Number
5093716
Application Date
February 1, 1991
Publication Date
March 3, 1992
Inventor
Katsuaki Hirota
Kanagawa
JP
Fumiaki Kato
Chiba
JP
Takashi Kohashi
Chiba
JP
Akihiro Kikuchi
Chiba
JP
Toshiharu Kondo
Kanagawa
JP
Agent
William S Frommer
Alvin Sinderbrand
Assignee
Sony Corporation
JP
IPC
H04N 9/73
H04N 5/238
View Original Source