Multiplexed-input-separated Σ-Δ...

Details Multiplexed-input-separated Σ-Δ... Multiplexed-input-separated Σ-Δ...

2006-11-17

2008-12-16

Williams, Howard (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C348S308000, C341S155000

Reexamination Certificate

active

07466255

ABSTRACT:
In an array of imaging elements, a pixel level analog-to-digital-converter design splits the quantizer into an input transistor at the pixel location and a quantizer body for each row. The feedback digital-to-analog converter is also split into two components, one at the pixel location and one provided either for each row or for the entire array.

REFERENCES:
patent: 5248971 (1993-09-01), Mandl
patent: 5515046 (1996-05-01), Mandl
patent: 5659315 (1997-08-01), Mandl
patent: 6597371 (2003-07-01), Mandl
patent: 6741198 (2004-05-01), McIlrath
patent: 7023369 (2006-04-01), Bocko et al.
Z. Ignjatovic, et al., “A 0.88nW/pixel, 99.6 dB Linear-Dynamic-Range Fully-Digital Image Sensor Employing a Pixel-Level Sigma-Delta ADC”, IEEE VLSI Symposium, Jun. 14 and 15, 2006.

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