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:
Nov. 12, 2024
Filed:
Jan. 10, 2020
National University Corporation Shizuoka University, Shizuoka, JP;
Shoji Kawahito, Hamamatsu, JP;
Abstract
A distance image sensor includes a light source that generates pulsed light, a light source controller that controls the light source, a pixel circuit including a photoelectric conversion region, charge readout regions, and control electrodes, a charge transfer controller that sequentially applies control pulses to the control electrodes, a signal readout circuit that reads out detection signals of an amount of charge transferred to the charge readout regions and a distance calculator that repeatedly calculates a distance from a difference value between two amounts of charge on the basis of the signals, the light source controller changes generation timing of the pulsed light according to a pseudo random number, and the charge transfer controller changes timings of the application of two control pulses for transferring charge corresponding to the two amounts of charge according to the pseudo random number so that the timings are replaced with each other.