About 2 results
https://drivepatents.com/patents/1003490 · 11 Apr 2012
A method is provided for navigation of a mobile device (680; 480). Spatial information of at least one beacon (490; 701; A, B, C, D, E, F, G , H, I, J. K, L) detected in an image relative to the image is determined ; and a position of the mobile device bas...
https://drivepatents.com/patents/1011698 · 22 Jun 2011
Disclosed is an optical navigation device, a method of controlling the illumination of an optical navigation device. The optical navigation device comprises: a navigation radiation source capable of producing a beam of radiation; an optical element for ide...