SIGNAL PROCESSING DEVICE AND METHOD, IMAGING DEVICE AND SOLID STATE IMAGING ELEMENT

摘要

A signal processing device includes a control unit that suspends supplying of a signal to an A/D conversion unit which performs A/D conversion, during an A/D conversion period in which the A/D conversion is performed on the signal that depends on an electric charge read from a pixel; and a maintenance unit that maintains a signal value of the signal in a state where the signal is supplied by the control unit to the A/D conversion unit and that supplies the maintained signal value to the A/D conversion unit in a state where the supplying of the signal to the A/D conversion unit is suspended by the control unit.

主权项

1. An imaging device comprising:
a pixel configured to convert an incident light into a pixel signal; a signal line connected to the pixel to convey the pixel signal; an A/D converter configured to perform an analog to digital conversion; a switch circuit disposed between the signal line and the A/D converter, the switch being configured to control a connection between the signal line and an input terminal of an A/D converter; a maintenance unit disposed between the A/D converter and the switch circuit, the maintenance unit being configured to hold the pixel signal conveyed by the switch circuit; and a control unit configured to supply a control signal for controlling the switch circuit.