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:
Sep. 13, 2022
Filed:
Aug. 07, 2018
National University Corporation Shizuoka University, Shizuoka, JP;
Shoji Kawahito, Hamamatsu, JP;
Abstract
A distance image sensor includes a light source, a light source control means for controlling the light source, a pixel circuit including a photoelectric conversion region, charge readout regions, and control electrodes, a charge transfer control means for sequentially applying a control pulse to the control electrodes, and a distance calculation means for reading voltages of the charge readout regions as detection signals and repeatedly calculating a distance on the basis of the detection signals, and the distance calculation means calculates a sum value of signal components of charge generated from the pulsed light other than background light among the detection signals, calculates a distance from the detection signals using a predetermined equation when the sum value exceeds a first threshold value, and invalidates the calculation of the distance when the sum value does not exceed the first threshold value.