| http://www.w3.org/ns/prov#value | - For example, with continued reference to FIG. 1, the possible locations of a wireless communications device transmitting a signal that arrived at receiving station RS1 at t1 and arrived at receiving station RS2 at t2 is defined by the locus of points comprising a hyperbola curve 6, where the curve is defined by t2???t1=k1, where k1 is a constant.
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