Abstract: An apparatus and method for visualizing a scene in the form of image rays projecting along a path includes a plurality of charge coupled device detectors disposed along the path to receive the image rays and to collect data. This data includes both noise data which is collected at a generally constant rate, and image data which is collected when the image rays are present along the path. A clock which facilitates discharge of the data from the image array has a first state wherein the data is retained in the detectors, and a second state wherein the data is discharged from the detectors. An event detector including a plurality of charge coupled device detectors forms an event array which places the clock in the first state when the image rays are present along the path and places the clock in the second state when the image rays are absent from the path.

Abstract: An improved gain compression device is disclosed, especially for use in charge-coupled devices. The device is preferably constructed on a semiconductor substrate and includes a first potential well in close proximity to a mobile charge packet generation region. A second potential well is separated from the generation region by a diffusion region. The first potential well becomes saturated and drains to a drain region while the second potential well continues to fill.

Abstract: A gain compression method and apparatus which is especially suitable for charge coupled devices is disclosed. A mobile charge packet generation area is provided with an adjacent overflow barrier. The overflow barrier is adjacent an N+ diffusion region which provides parasitic capacitance to the overflow barrier. The diffusion region adjusts the potential of the overflow barrier as greater amounts of charge overflow the barrier.