SOLID-STATE IMAGING DEVICE

摘要

According to one embodiment, a solid-state imaging device includes an image sensor including a valid pixel area having valid pixels and a light-blocking pixel area having light-blocking pixels to generate an image signal; and a clamp circuit that detects an overflow of a signal charge and executes a black level signal processing for the image signal using a parameter. The clamp circuit detects the overflow using an integration value of the signals of the light-blocking pixels integrated in a direction from the light-blocking pixel area to the valid area, and sets the parameter generated from the output signals of the light-blocking pixels substantially not influenced by the overflow based on a result of the detection.

主权项

1. A solid-state imaging device comprising:
an image sensor including a valid pixel area having a plurality of valid pixels and a light-blocking pixel area having a plurality of light-blocking pixels to generate an image signal from output signals of the valid pixels and the light-blocking pixels; and at least one clamp circuit that detects an overflow of signal charge from the valid pixel area to the light-blocking pixel area and that executes a black level signal processing for the image signal using a parameter generated from signals of the light-blocking pixels, wherein the clamp circuit detects the overflow of the signal charge using an integration value of the signals of the light-blocking pixels integrated in a direction from the light-blocking pixel area to the valid area, and sets the parameter generated from the output signals of the light-blocking pixels substantially not influenced by the overflow of the signal charge based on a result of the detection of the overflow of the signal charge.