US 12,087,016 B2
Circuitry and methods for mitigating imbalance in image sensors with multiple readout paths
Nicholas Paul Cowley, Wroughton (GB); and Mukesh Rao Engla Syam, Bangalore (IN)
Assigned to SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed by SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US)
Filed on Nov. 21, 2022, as Appl. No. 18/057,408.
Prior Publication US 2024/0169586 A1, May 23, 2024
Int. Cl. G06T 7/80 (2017.01); H04N 25/633 (2023.01); H04N 25/78 (2023.01)
CPC G06T 7/80 (2017.01) [H04N 25/633 (2023.01); H04N 25/78 (2023.01)] 20 Claims
OG exemplary drawing
 
1. An image sensor comprising:
a pixel array;
first readout circuits disposed at a first location relative to the pixel array and configured to receive signals from the pixel array;
second readout circuits disposed at a second location, different than the first location, relative to the pixel array and configured to receive signals from the pixel array;
a first calibration readout circuit disposed by the first readout circuits and configured to receive a calibration voltage;
a second calibration readout circuit disposed by the second readout circuits and configured to receive the calibration voltage; and
an error detection circuit configured to output an error signal based on signals output from the first and second calibration readout circuits.