Patent attributes
An imaging device includes pixels each including a photoelectric conversion unit and a charge holding unit and a control unit that performs first control, which causes the pixels to perform an operation that includes an exposure operation of the photoelectric conversion unit, a reset operation of the charge holding unit, and a charge transfer operation from the photoelectric conversion unit to the charge holding unit and updates charges held by the charge holding unit by the reset and charge transfer operations, and second control to read out a signal based on charges held by the charge holding unit from each of the pixels. The control unit repeats the first control at a predetermined cycle without inserting the second control in a first period before a trigger signal is externally input and changes the first control to the second control when the trigger signal is externally input after the first period.
