Card with an offset field generator
First 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.
2 Assignments
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Accused Products
Abstract
An assembly of a card and a card reader, the card reader comprising a reading head configured to be positioned over a predetermined curve of the card while sensing the electromagnetic field and to output a signal relating to the field sensed, the card comprising an oblong field generator comprising at least two end portions configured to output at least part of the electromagnetic field, wherein the end portions are at least 1.8 mm wide and positioned so that, when projected on to a plane of the surface, an edge of each end portion is positioned no more than 0.5 mm from the curve and/or the curve not overlap the end portions in the projection. The curve is defined by the path of the reading head over the card. The card has a generator displaced in relation to standard cards where the generator is positioned directly under the curve.
68 Citations
15 Claims
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An assembly comprising:
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a card having an outer, at least substantially straight side, the card including 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 straight side, the oblong field generator having at least two end portions having a width, perpendicular to a longitudinal axis of the generator, of at least 1.8 mm and being configured to output at least part of the electromagnetic field, the end portions being 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; and a card reader including a reading head configured to be positioned over the straight line of the card while sensing the electromagnetic field and to output a signal relating to the field sensed. - View Dependent Claims (11, 12)
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13. A method of transferring information from a card to a card reader head, the card reader head including a reading head, the card having an outer, at least substantially straight side, the method comprising:
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operating a field generator of the card to output a magnetic field along the 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 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 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; and reading, via the reading head, at least a part of the magnetic field, if the reading head is directly above the straight line, wherein the reading head is configured to output a signal corresponding to the at least part of the magnetic field entering the reading head. - View Dependent Claims (14, 15)
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Specification