Synchronous time code image sensor
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsArnaud VERDANT, William GUICQUERO
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Abstract
An image sensor including: a plurality of pixels, each pixel being capable of supplying an output signal representative of a quantity of light energy received from a time of beginning of a pixel integration phase; and a control circuit configured to, during a phase of acquisition of an image, successively select each pixel a number n of times during a same pixel integration phase, without resetting the pixel between the first and the last selection of the pixel and, for each selection of a pixel, compare the output signal of the pixel with a quantization threshold and read a binary signal representative of the result of the comparison.
Claims20
An image sensor comprising:
- a plurality of pixels, each pixel comprising a photodiode and a sense node and being capable of supplying on its sense node an output signal representative of a quantity of light energy received by its photodiode during a pixel integration phase;
- and
- a control circuit configured to, during a phase of acquisition of an image, successively select each pixel a number n of times without resetting the pixel between the first and the last selection of the pixel and, for each selection of a pixel, compare the output signal of the pixel with a quantization threshold and read a binary signal representative of the result of the comparison, the sequence of n binary samples thus obtained forming the pixel output value.
Dependencies are inferred from the claim text.