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US20090147239 APPARATUS AND METHOD FOR TRACKING AN OBJECT  
An apparatus for tracking an object or measuring the range of an object comprises a beam generator for generating first and second beams of energy and projecting the first and second beams towards...
US20160069666 HEIGHT MEASURE METHOD AND ELECTRONIC DEVICE USING SAME  
A height measurement method is provided. The method includes: detecting, at a sensor of an electronic device, a distance between the electronic device and an object to be measured; emitting, from...
Matches 1 - 2 out of 2