| http://www.w3.org/ns/prov#value | - In other words, the integration periods of each transponder 14A-14C all begin and end at randomly determined times with respect to those of other transponders 14A-14C. In one preferred embodiment, this randomization is accomplished by connecting a source of power such as batteries (not shown), to timing control 308 of each transponder 14A-14C at random times.
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