Patent ID: 9697449
Date: 2017-07-04
CPC Classifications: G06K

Claim:
1. A card having an outer, at least substantially straight side, the card comprising: an oblong field generator configured to provide an electromagnetic field along a straight line on or at a surface thereof, the straight line being at least substantially parallel to the straight side and positioned between 6.9 mm and 7.2 mm from the side or between 10.2 and 10.5 mm from the side, the oblong field generator including at least two end portions configured to output at least part of the electromagnetic field, the end portions having a width, perpendicular to a longitudinal direction of the oblong field generator, of at least 1.8 mm and are positioned so that, when projected on to a plane of the surface, an edge of each end portion that is parallel with the straight line is positioned no more than 0.5 mm from the straight line in a direction perpendicular to the straight line and/or the edge of each of the end portions of the oblong field generator is parallel with the straight line and separated therefrom by a distance in the projection such that the straight line does not overlap the end portions of the oblong field generator in the projection.