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:
Dec. 12, 2023
Filed:
Dec. 30, 2020
Neonode Inc., San Jose, CA (US);
Stefan Johannes Holmgren, Sollentuna, SE;
Jan Tomas Hartman, Kumla, SE;
Tom Richard Berglind, Älvsjö, SE;
Lars Bertil Sparf, Vällingby, SE;
Jonas Daniel Justus Hjelm, Bandhagen, SE;
John Elis Gõsta Karlsson, Märsta, SE;
Per Carl Sture Rosengren, Täby, SE;
Gunnar Martin Frõjdh, Dalarö, SE;
Joseph Shain, Stockholm, SE;
Xiatao Wang, Lidingö, SE;
Clarence Ray King, III, Solana Beach, CA (US);
Oscar Ritzén Praglowski de Radwan, Stockholm, SE;
NEONODE INC., San Jose, CA (US);
Abstract
A proximity sensor, including light emitters and light detectors mounted on a circuit board, two stacked lenses, positioned above the emitters and the detectors, including an extruded cylindrical lens and a Fresnel lens array, wherein each emitter projects light through the two lenses along a common projection plane, wherein a reflective object located in the projection plane reflects light from one or more emitters to one or more detectors, and wherein each emitter-detector pair, when synchronously activated, generates a greatest detection signal at the activated detector when the reflective object is located at a specific 2D location in the projection plane corresponding to the emitter-detector pair, and a processor sequentially activating the emitters and synchronously co-activating one or more detectors, and identifying a location of the object in the projection plane, based on amounts of light detected by the detector of each synchronously activated emitter-detector pair.