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Showing 1 to 20 of 88 results

PATENT /PUB No. Country Patent Title Patent Owner Filing Date Issue/Pub Date Status
5948038 US Traffic violation processing system Jul 31, 1996 Sep 7, 1999 Granted
7778876 US Community concept for payment using RF ID transponders Mar 21, 2005 Aug 17, 2010 Granted
5606322 US Divergent code generator and method Oct 24, 1994 Feb 25, 1997 Granted
8432255 US Secondary data channels in RFID systems Apr 9, 2009 Apr 30, 2013 Granted
8010219 US Computer automated test and processing system of RFID tags May 5, 2006 Aug 30, 2011 Granted
7928831 US System and method for handling user keys and user passwords in a tagging system where the tag itself is capable of carrying only a single key or password Aug 11, 2006 Apr 19, 2011 Granted
8188908 US System and method for measurement of distance to a tag by a modulated backscatter RFID reader Jul 21, 2010 May 29, 2012 Granted
7725348 US Multilane vehicle information capture system May 27, 2005 May 25, 2010 Granted
5912822 US Frequency domain processing of Doppler signals in a traffic monitoring system Oct 15, 1996 Jun 15, 1999 Granted
9361492 US Multi-protocol RFID system Aug 12, 2015 Jun 7, 2016 Granted
5414624 US Automated vehicle parking system Nov 8, 1993 May 9, 1995 Granted
6752254 US Redundant coin processing system for automatic coin machines May 31, 2002 Jun 22, 2004 Granted
7501947 US RFID tag with small aperture antenna May 4, 2005 Mar 10, 2009 Granted
7782206 US RFID tag disabling systems and methods of use Mar 27, 2008 Aug 24, 2010 Granted
8975516 US System and method for loop detector installation Jul 27, 2012 Mar 10, 2015 Granted
7769963 US RF tag system with single step read and write commands Feb 9, 2005 Aug 3, 2010 Granted
7347368 US Method of enrolling in an electronic toll or payment collection system May 25, 2005 Mar 25, 2008 Granted
9558383 US Intermodulation mitigation technique in an RFID system Aug 12, 2014 Jan 31, 2017 Granted
7071840 US Ferromagnetic loop Sep 30, 2004 Jul 4, 2006 Granted
7952021 US System and method for loop detector installation May 5, 2008 May 31, 2011 Granted

Showing 1 to 20 of 88 results

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