SOLID-STATE IMAGE PICKUP DEVICE AND METHOD OF CONTROLLING SOLID-STATE IMAGE PICKUP DEVICE

摘要

Provided is a method of controlling a solid-state image pickup device according to an embodiment, the method including: resetting a potential of a floating diffusion shared by a plurality of photodiodes; sequentially transferring signal charges, which are photoelectrically converted by the photodiodes, to the floating diffusion in which the potential is reset, in a sequence allocated to the photodiodes, thereby accumulating the transferred signal charges in the floating diffusion; performing a sampling operation on a voltage signal corresponding to the potential of the floating diffusion every time when the signal charge is completely transferred to the floating diffusion from the photodiode; and calculating the voltage signal corresponding to the signal charge transferred to the floating diffusion for each of the photodiodes, based on a difference between two of the voltage signals which are continuously subjected to the sampling operation.

主权项

1. A method of controlling a solid-state image pickup device, comprising:
resetting a potential of a floating diffusion shared by a plurality of photodiodes; sequentially transferring signal charges, which are photoelectrically converted by the photodiodes, to the floating diffusion in which the potential is reset, in a sequence allocated to the photodiodes, thereby accumulating the transferred signal charges in the floating diffusion; performing a sampling operation on a voltage signal corresponding to the potential of the floating diffusion every time when the signal charge is completely transferred to the floating diffusion from one of the photodiodes; and calculating the voltage signal corresponding to the signal charge transferred to the floating diffusion for each of the photodiodes, based on a difference between two of the voltage signals which are continuously subjected to the sampling operation.