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:
Jun. 13, 2017
Filed:
May. 22, 2012
Applicants:
Teresa Serrano Gotarredona, Sevilla, ES;
Bernabé Linares Barranco, Sevilla, ES;
Inventors:
Teresa Serrano Gotarredona, Sevilla, ES;
Bernabé Linares Barranco, Sevilla, ES;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/378 (2011.01); H03F 3/345 (2006.01); H03F 1/08 (2006.01); H03F 3/08 (2006.01);
U.S. Cl.
CPC ...
H04N 5/378 (2013.01); H03F 1/086 (2013.01); H03F 3/082 (2013.01); H03F 3/345 (2013.01); H03F 2200/456 (2013.01); H03F 2200/91 (2013.01);
Abstract
The invention relates to a transimpedance gain circuit for temporally differentiating photo-sensing systems in dynamic vision sensors, which uses at least one photodiode and at least two in-series transistors, each of the transistors being connected in diode configuration and being positioned at the output of the photodiode. The output current from the photodiode flows through the drain-source channels of the transistors and the source of the last transistor in series is connected to a voltage selected from ground voltage, a constant voltage or a controlled voltage.