Patent ID: 11936973
Assignee: LUMILEDS, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 19:
20. The controller according to claim 19, wherein the at least one processor is further configured to:
use each of the plurality of image regions, illuminated using switching pulse trains of approximately equal duration during the preliminary image, to determine adjustment of a previously applied switching pulse train to each of the plurality of image regions during the current frame and computation of a depth map from the current frame based on TOF information of each of the plurality of image regions;
receive sequential information from each pixel of the image sensor during capture of a single image to determine time of flight information, each sequential information based on a different phase shift, the phase shifts being about 0°, about 90°, about 180°, and about 270°; and
determine a distance between the infrared-sensitive image sensor and the scene dependent on a combined phase shift that combines signal strengths at the phase shifts of each pixel.