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:
Apr. 28, 2026
Filed:
Apr. 20, 2022
Pixart Imaging Inc., Hsin-Chu City, TW;
Guo-Zhen Wang, Hsin-Chu City, TW;
PixArt Imaging Inc., Hsin-Chu City, TW;
Abstract
A non-solid material detection device, comprising: a processing circuit; an image sensor; a first light source, configured to emit first light following a first direction; a second light source, configured to emit second light following a second direction. If the non-solid material detection device is located on the surface, the first direction is toward a surface and the second direction is leaving or parallel with the surface. The processing circuit determines an obstacle based on a second sensing image generated according to the second light and determines non-solid material based on a first sensing image generated according to the first light. The present invention also discloses a distance computing device. Via the present invention, the non-solid material detection and the distance computing can be more accurate.