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US 2013/0155282 A1Published application
Image sensor readout method and apparatus
AssigneeSTMicroelectronics (R&D) Ltd.
InventorRobert Golding
Life of this patent
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AssigneeSTMicroelectronics (R&D) Ltd.
InventorRobert Golding
Estimating the term…
A pixel readout circuit including at least first, second and third memory locations. During an integration period of a pixel, the pixel readout circuit repeatedly samples the pixel output level during the integration period, stores the first sample in the first memory location, and stores each subsequent sample in memory locations other than the first memory location. Each sample is stored with a time corresponding to when that sample was taken, such that at any one time subsequent to the first three samples having been stored, at least the first sample and the two most recent samples are stored. Also disclosed is a corresponding method of reading out of a pixel output over an undefined integration period.
A pixel readout circuit comprising at least first, second and third memory locations wherein, during an integration period of a pixel, said pixel readout circuit is operable to repeatedly sample the pixel output level during the integration period, to store the first sample in said first memory location, and to store each subsequent sample in memory locations other than said first memory location, each sample being stored with a time corresponding to when that sample was taken, such that at any one time subsequent to the first three samples having been stored, at least the first sample and the two most recent samples are stored.
A method of reading out of a pixel output over an undefined integration period, comprising the steps of:
Dependencies are inferred from the claim text.