Daniel E Sims

US Patent:

20180343407, Nov 29, 2018

Filed:

Jul 16, 2018

Appl. No.:

16/036552

Inventors:

Shree K. Nayar - New York NY, US
Daniel Sims - Franklin Park NJ, US
Mikhail Fridberg - Sharon MA, US

Assignee:

The Trustees of Columbia University in the City of New York - New York NY

International Classification:

H04N 5/369
H01L 27/146
H01L 31/053
H04N 5/378

Abstract:

Circuits for self-powered image sensors are provided. In some embodiments, an image sensor is provided, the image comprising: a plurality of pixels, each of the plurality of pixels comprising: a photodiode having an anode and a cathode connected to a constant voltage level; a first transistor having: a first input connected to the anode of the photodiode; a first output connected to a reset bus; and a first control configured to receive a discharge signal; and a second transistor having: a second input connected to the anode of the photodiode; a second output connected to a pixel output bus; and a second control configured to receive a select signal; and a third transistor having: a third input coupled to each first output via the reset bus; a third output configured to be coupled to an energy storage device; and a third control configured to receive an energy harvest signal.

US Patent:

20180020175, Jan 18, 2018

Filed:

Jan 7, 2016

Appl. No.:

15/538556

Inventors:

Shree K. Nayar - New York NY, US
Daniel Sims - Franklin Park NJ, US
Mikhail Fridberg - Sharon MA, US

International Classification:

H04N 5/369
H01L 31/053
H01L 27/146
H04N 5/378

Abstract:

Circuits for self-powered image sensors are provided. In some embodiments, an image sensor is provided, the image comprising: a plurality of pixels, each of the plurality of pixels comprising: a photodiode having an anode and a cathode connected to a ground voltage; a first transistor having: a first input connected to the anode of the photodiode; a first output connected to a reset bus; and a first control configured to receive a discharge signal; and a second transistor having: a second input connected to the anode of the photodiode; a second output connected to a pixel output bus; and a second control configured to receive a select signal; and a third transistor having: a third input coupled to each first output via the reset bus; a third output configured to be coupled to an energy storage device; and a third control configured to receive an energy harvest signal.