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:
Mar. 10, 2020
Filed:
Jun. 07, 2017
Neonode Inc., San Jose, CA (US);
Björn Thomas Eriksson, Stockholm, SE;
Sven Robert Pettersson, Huddinge, SE;
Stefan Johannes Holmgren, Sollentuna, SE;
Xiatao Wang, Stockholm, SE;
Rozita Teymourzadeh, Upplands Väsby, SE;
Per Erik Lindström, Årsta, SE;
Emil Anders Braide, Nacka, SE;
Jonas Daniel Justus Hjelm, Hägersten, SE;
Erik Anders Claes Rosengren, Stockholm, SE;
Neonode Inc., San Jose, CA (US);
Abstract
A method for identifying a proximal object, including providing light emitters, light detectors and lenses, mounted in a housing, each lens, denoted L, being positioned in relation to a respective one of the detectors, denoted D, such that light entering lens L is maximally detected at detector D when the light enters lens L at an angle of incidence θ, activating the detectors synchronously with activation of each emitter to measure reflections of the light beams emitted by each emitter, and calculating a location of a reflective object along a path of a light beam projected by an activated emitter, by calculating an axis of symmetry with respect to which the outputs of the synchronously activated detectors are approximately symmetric, orienting the calculated axis of symmetry by the angle θ, and locating a point of intersection of the path of the emitted light beam with the oriented axis of symmetry.