rect transmission of data from signs and billboardsWO2004025492A1 *Sep 10, 2003Mar 25, 2004Capital One Financial CorpStealth networkWO2007009008A2 *Jul 13, 2006Jan 18, 2007Andrew CorpSystem and method for data maintenance and integration including interpolationWO2009035830A1 *Aug 20, 2008Mar 19, 2009Bosch Gmbh RobertIntegrated system and method for interactive communication and multimedia support