| CPC G06K 19/06206 (2013.01) [G06K 7/084 (2013.01); G06K 19/06196 (2013.01); G06K 19/0716 (2013.01)] | 6 Claims | 

| 
               1. A card, comprising: 
            a processor having a plurality of ports to detect movement of an object relative to said card based on signals detected at said plurality of ports; 
                a first array of sensors arranged along a first length of said card; and 
              a second array of sensors arranged along a second length of said card, wherein sensors of said first array are coupled to a first port of said plurality of ports and sensors of said second array are coupled to a second port of said plurality of ports to produce a first sequence of said signals based on a first direction of said movement and to produce a second sequence of said signals based on a second direction of said movement. 
                 |