Back to results
US 12,511,969 B1Granted
Document recognition device
AssigneeThe Governor and Company of the Bank of England
InventorsAnthony McGrath, Richard Noble, Charles Noble
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeThe Governor and Company of the Bank of England
InventorsAnthony McGrath, Richard Noble, Charles Noble
Estimating the term…
A document recognition device comprising a magnetic field sensor (22) responsive to a controller (34) to acquire magnetic field data from a document of value (18), wherein the magnetic field sensor (22) comprises a plurality of sensor elements (28) having a node spacing and the controller (34) is configured to periodically activate the magnetic field sensor (22) to acquire magnetic field data at regularly spaced intervals along a document of value, the spacing between each interval corresponding to the node spacing of the sensor elements (28) and the magnetic field sensor entering an inactive state between successive intervals. The sensor elements (28) are arranged as a linear array orientated perpendicular to a direction of travel of the document of value (18) over the magnetic field sensor (22). A method of document authentication is also provided.
A document recognition device comprising a magnetic field sensor responsive to a controller to acquire magnetic field data from a document of value, wherein the magnetic field sensor comprises a plurality of sensor elements having a node spacing and the controller is configured to periodically activate the magnetic field sensor to acquire magnetic field data at regularly spaced intervals along a document of value, the spacing between each interval corresponding to the node spacing of the sensor elements and the magnetic field sensor entering an inactive state between successive intervals;
A method of document authentication comprising passing a document of value over a magnetic field sensor responsive to a controller to acquire magnetic field data, the magnetic field sensor comprising a plurality of sensor elements having a node spacing, periodically activating the magnetic field sensor using the controller to acquire magnetic field data, wherein the controller is configured to periodically activate the magnetic field sensor to acquire magnetic field data at regularly spaced intervals along the document of value, the spacing between each interval corresponding to the node spacing of the sensor elements and the magnetic field sensor entering an inactive state between successive intervals,
Dependencies are inferred from the claim text.