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US 10,771,775 B2Granted
Imaging device, imaging system, moving body, and control method
AssigneeCanon Kabushiki Kaisha
InventorsShinya Igarashi, Noriyuki Shikina, Yasushi Iwakura, Yoichi Wada
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Abstract
An imaging device comprising a plurality of pixels and a processing unit. The plurality of pixels includes (i) a light-receiving pixel arranged to receive incident light and output a light signal based on the incident light, and (ii) a reference pixel arranged to output a pixel signal for configuring a failure detection signal. The processing unit is arranged to determine whether or not the failure detection signal is correct based on abnormality information indicating the abnormality of the reference pixel.
Claims18
An imaging device comprising:
- a pixel area of a semiconductor substrate;
- a plurality of pixels arranged in the pixel area including:
- a light-receiving pixel arranged to receive incident light and output a pixel signal based on the incident light, the light-receiving pixel being arranged in the pixel area;
- and
- a reference pixel arranged to output a pixel signal for configuring a failure detection signal, the reference pixel being arranged in the pixel area;
- and
- an output control unit connected to the reference pixel and configured to input a control signal to the reference pixel to control a level of the pixel signal to be output by the reference pixel;
- and
- a processing unit arranged to determine whether or not the failure detection signal is correct based on abnormality information indicating the abnormality of the reference pixel.
6 more elements
An imaging system comprising:
- an imaging device;
- and
- a signal processing unit,
- the imaging device includes:
- a pixel area of a semiconductor substrate;
- a plurality of pixels arranged in the pixel area including:
- a light-receiving pixel arranged to receive incident light and output a pixel signal based on the incident light, the light-receiving pixel being arranged in the pixel area:
- and
- a reference pixel arranged to output a pixel signal for configuring a failure detection signal, the reference pixel being arranged in the pixel area;
- and
- an output control unit connected to the reference pixel and configured to input a control signal to the reference pixel to control a level of the pixel signal to be output by the reference pixel;
- and
- the signal processing unit configured to:
- process the pixel signal according to incident light and the failure detection signal for detecting a failure of the imaging device, the pixel signal and the failure detection signal having been output from the pixels of the imaging device, the failure detection signal having been controlled by the output control unit of the imaging device connected to the pixels and configured to input the control signal to the reference pixel to control the level of the pixel signal to be output by the reference pixel, and
- determine whether or not the failure detection signal is correct based on abnormality information indicating the abnormality of a pixel of the imaging device.
12 more elements
Dependencies are inferred from the claim text.