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:
Jun. 13, 2017
Filed:
May. 31, 2015
Neonode Inc., Santa Clara, CA (US);
Robert Pettersson, Huddinge, SE;
Per Rosengren, Solna, SE;
Erik Rosengren, Stockholm, SE;
Stefan Holmgren, Sollentuna, SE;
Lars Sparf, Vällingby, SE;
Richard Berglind, Älvsjö, SE;
Thomas Eriksson, Stockholm, SE;
Karl Erik Patrik Nordström, Huddinge, SE;
Gunnar Martin Fröjdh, Dalarö, SE;
Xiatao Wang, Solna, SE;
Remo Behdasht, Ugchelen, NL;
Neonode Inc., San Jose, CA (US);
Abstract
Activating a plurality of light emitters and light detectors around a screen, each emitter-detector pair corresponding to a light path crossing the screen, wherein some of the light paths are blocked when one or more objects touch the screen, providing a look-up table, listing, for each cell from a plurality of cells, those light paths that traverse that cell when no object is touching the screen, wherein the cells partition the screen, for each cell: accessing the look-up table to identify those light paths that traverse that cell, determining whether the thus-identified light paths are blocked during the activating and, if affirmative, recognizing that cell as being a touched cell, and combining adjacent touched cells into a common touch location, thereby calculating one or more touch locations wherein each touch location is a combination of one or more constituent touched cells.