Patent ID: 9025059
Filing Date: 2015-05-05
Classification: G01S,H01L,H04N

Abstract:
1. A solid-state imaging device comprising: first and second pixel groups, each pixel of the first pixel group including a first photoelectric conversion unit that converts a reflection light pulse from an object irradiated with an irradiation light pulse into an electric charge, a first electric charge accumulation unit that accumulates the electric charge converted by the first photoelectric conversion unit synchronously with a timing of turning on the irradiation light pulse, and a first reset unit that resets the electric charge converted by the first photoelectric conversion unit synchronously with a period of turning off the irradiation light pulse, and each pixel of the second pixel group including a second photoelectric conversion unit that converts the reflection light pulse from the object irradiated with the irradiation light pulse into an electric charge, a second electric charge accumulation unit that accumulates the electric charge converted by the second photoelectric conversion unit synchronously with a timing of switching from on to off of the irradiation light pulse, and a second reset unit that releases a reset of the electric charge converted by the second photoelectric conversion unit synchronously with the timing of switching from on to off of the irradiation light pulse; a floating diffusion node into which the electric charge accumulated in the first and/or second electric charge accumulation unit is transferred; and a third reset unit that resets the floating diffusion node, wherein the first reset unit causes electric charge to be discharged from the first photoelectric conversion unit into a lateral overflow drain, and the second reset unit causes electric charge to be discharged from the second photoelectric conversion unit into the lateral overflow drain, and wherein, in a ranging mode of the first and second pixel groups, a first signal portion S