Multiplexed-input-separated sigma-delta analog-to-digital...

Details Multiplexed-input-separated sigma-delta analog-to-digital... Multiplexed-input-separated sigma-delta analog-to-digital...

2006-04-04

2006-04-04

Jeanpierre, Peguy (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C341S141000, C341S155000, C250S208100, C348S241000

Reexamination Certificate

active

07023369

ABSTRACT:
An image-sensing element has an array of photodiodes or other photodetecting elements and performs sigma-delta analog-to-digital conversion on the outputs of the photodetecting elements. The sigma-delta analog-to-digital converters have components divided between pixel-level and row-level structures, with each row-level structure connected to its pixel-level structures to define a multiplexed-input-separated sigma-delta analog-to-digital converter. The converter can include an integrator or can rely on an integration effect of the photodetecting element. The feedback required for sigma-delta analog-to-digital conversion can involve digital-to-analog converters located at each row-level structure or at each pixel-level structure.

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