Photoelectric conversion device and signal processing device

A signal processing device comprising:

• a correction value generation unit configured to generate a correction value;
• and
• a correction unit configured to perform black level correction of a signal output from a pixel array based on the correction value,
• wherein the signal processing device is configured to process a signal output from a photoelectric conversion device,
• wherein the photoelectric conversion device including the pixel array including a plurality of pixels arranged to form a plurality of rows, and a pixel control unit configured to control the plurality of pixels on a row basis,
• wherein the pixel array includes an effective pixel region that outputs a signal according to incident light by photoelectric conversion and a correction signal acquisition region that outputs a correction signal for the black level correction,
• wherein the correction signal acquisition region is arranged so as to correspond to each row of the effective pixel region,
• wherein the pixel control unit is configured to control pixels of two or more rows in parallel in one row control period, and is configured to change the number of control rows in which the pixels are controlled in parallel in one frame period, and
• wherein the correction value generation unit generates the correction value using a first correction coefficient in a predetermined number of row control periods including a timing at which the number of control rows changes, and generates the correction value using a second correction coefficient in other row control periods.