Patent classifications
G
PHYSICS
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G03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
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G03G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
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15/00
Apparatus for electrographic processes using a charge pattern
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G03G15/22
involving the combination of more than one step according to groups G03G13/02 - G03G13/20
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G03G15/221
Machines other than electrographic copiers, e.g. electrophotographic cameras, electrostatic typewriters
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G03G15/223
Machines for handling microimages, e.g. microfilm copiers
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G03G15/223

Physical unclonable function (PUF) alters disk structure to encode region
11416193 · 2022-08-16 · ·

A physical unclonable function (“PUF”) object can be used to encode the geography or region in which device to which the PUF is attached may operate. Disclosed are two potential ways to regionalize a device using a PUF disk: placing the magnetic sensor at a different radius depending on the region or geography intended for sale; and altering the magnetic structure of the disk to magnetically encode the region into the sensor data.

PHYSICAL UNCLONABLE FUNCTION REGION ENCODING
20210334052 · 2021-10-28 ·

A physical unclonable function (“PUF”) object can be used to encode the geography or region in which device to which the PUF is attached may operate. Disclosed are two potential ways to regionalize a device using a PUF disk: placing the magnetic sensor at a different radius depending on the region or geography intended for sale; and altering the magnetic structure of the disk to magnetically encode the region into the sensor data.