Patent ID: 7201316
Filing Date: 2007-04-10
Classification: B07C

Abstract:
1. A method of computing the orientation and position of a wearer of a data acquisition and display device, comprising: providing two or more unique active beacons having known locations relative to one another; providing a data acquisition and display device to be worn by the wearer, the data acquisition and display device having a beacon detection device with a defined field of view, said defined field of view substantially corresponding with a field of view of the wearer; sensing two or more unique active beacons within the beacon detection device's field of view; determining the location of the data acquisition and display device relative to the known location of the two or more unique active beacons within the field of view of the beacon detection device; and determining from said location and said defined field of view whether one or more items having passive beacons thereon for tracking purposes are within said defined field of view as said one or more items' positions change.