The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 28, 2025

Filed:

Aug. 31, 2021
Applicant:

Inivation Ag, Zürich, CH;

Inventor:

Chenghan Li, Zürich, CH;

Assignee:

INIVATION AG, Zurich, CH;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N 25/47 (2023.01); H04N 25/772 (2023.01); H04N 25/78 (2023.01);
U.S. Cl.
CPC ...
H04N 25/47 (2023.01); H04N 25/772 (2023.01); H04N 25/78 (2023.01);
Abstract

An event sensor including a pixel array and configured to produce a signal stream comprising event data in reaction to light incident on the pixel array. The event sensor includes: for each pixel of the pixel array a photovoltaic converter and an electronic converter connected to the photovoltaic converter. The photovoltaic converter and the electronic converter are configured to produce and store a digital current pixel value, which is dependent on the intensity of light incident on the photovoltaic converter; for each pixel of the pixel array a corresponding multi-bit digital storage configured to store a previous pixel value; and a readout processor connected to the electronic converter and the multi-bit digital storage and configured to generate a pixel event value of the event data based on a pixel subtraction result of subtracting the previous pixel value from the current pixel value.


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