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.
Patent No.:
Date of Patent:
Jul. 21, 2020
Filed:
Oct. 19, 2017
Prophesee, Paris, FR;
Consejo Superior DE Investigaciones Cientificas, Madrid, ES;
Thomas Finateu, Moret sur Loing, FR;
Bernabé Linares Barranco, Seville, ES;
Teresa Serrano Gotarredona, Seville, ES;
Christoph Posch, Bad Fischau, AT;
PROPHESEE, Paris, FR;
CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS, Madrid, ES;
Abstract
A pixel circuit for detecting time-dependent visual data includes a photo sensing device detecting a light intensity and generating a signal representing the detected light intensity. The pixel circuit further includes: a voltage amplifier configured for amplifying the signal representing the detected light intensity and generating an amplified signal, the amplified signal being generated by taking into account a control signal which shifts an input voltage offset of the voltage amplifier; a hysteresis comparing module configured for comparing the amplified signal to at least one threshold value and to a reference value and for generating at least one output signal based on the comparison; and a feedback control module configured for generating the control signal of the voltage amplifier based on the at least one output signal generated by the hysteresis comparing module.