METHODS AND APPARATUS TO MONITOR CONSUMER ACTIVITY
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United States of America Patent
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Issued Date -
Jun 19, 2008
app pub date -
Dec 14, 2007
filing date -
Dec 14, 2006
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Abandoned
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Abstract
Methods and apparatus to monitor consumer activity are disclosed herein. In a disclosed example method, a first signal is received via a portable device from a first one of a plurality of stationary devices positioned throughout a monitored environment. A first stationary device location of the first stationary device is determined based on the first signal. Absolute location information indicative of a first portable device location of the portable device is determined based on the first stationary device location. Navigational sensing information is generated by the portable device. Relative location information is determined based on the absolute location information and the navigational sensing information, wherein the relative location information is indicative of a second portable device location of the portable device.
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