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US 12,566,935 B2Granted
Enrollment assistance device with capacitive coupling pads, biometric system and enrollment method
AssigneeFingerprint Cards Anacatum IP AB
InventorsJohan Hammersberg, Muhammad Asad
Life of this patent
Estimating the term…
Abstract
An enrollment assistance device with a first surface portion for a user device, and a second surface portion for a contactless smartcard; a first conductor spiral arranged in the first surface portion; a second conductor spiral conductively separated from the first conductor spiral and arranged in the second surface portion. The first conductor spiral and the second conductor spiral are coupled to each other by capacitive coupling pads.
Claims13
An enrollment assistance device, for facilitating biometric enrollment of a user of a contactless smartcard including a biometric arrangement and a wireless power transfer arrangement, the enrollment assistance device comprising:
- a first conductor spiral in a first conductor layer of the enrollment assistance device, and arranged to form a first wireless power transfer link with the wireless power transfer arrangement of a user device when the user device is arranged on a first surface portion of the enrollment assistance device, the first conductor spiral having a first conductor end inside the first conductor spiral and a second conductor end outside the first conductor spiral, wherein the first conductor end is conductively connected to a first capacitive coupling pad of the first conductor spiral and the second conductor end is conductively connected to a second capacitive coupling pad of the first conductor spiral;
- and
- a second conductor spiral in a second conductor layer of the enrollment assistance device conductively separated from the first conductor layer by an insulating layer, and arranged to form a second wireless power transfer link with the wireless power transfer arrangement of the contactless smartcard when the contactless smartcard is arranged on a second surface portion of the enrollment assistance device, the second conductor spiral having a first conductor end inside the second conductor spiral and a second conductor end outside the second conductor spiral, wherein the first conductor end is conductively connected to a first capacitive coupling pad of the second conductor spiral and the second conductor end is conductively connected to a second capacitive coupling pad of the second conductor spiral,
- wherein the first capacitive coupling pad of the first conductor spiral overlaps with the second capacitive coupling pad of the second conductor spiral, and the second capacitive coupling pad of the first conductor spiral overlaps with the first capacitive coupling pad of the second conductor spiral.
1 more element
A biometric system comprising:
- an enrollment assistance device, for facilitating biometric enrollment of a user of a contactless smartcard including a biometric arrangement and a wireless power transfer arrangement, the enrollment assistance device comprising:
- a first conductor spiral in a first conductor layer of the enrollment assistance device, and arranged to form a first wireless power transfer link with the wireless power transfer arrangement of a user device when the user device is arranged on a first surface portion of the enrollment assistance device, the first conductor spiral having a first conductor end inside the first conductor spiral and a second conductor end outside the first conductor spiral, wherein the first conductor end is conductively connected to a first capacitive coupling pad of the first conductor spiral and the second conductor end is conductively connected to a second capacitive coupling pad of the first conductor spiral;
- and
- a second conductor spiral in a second conductor layer of the enrollment assistance device conductively separated from the first conductor layer by an insulating layer, and arranged to form a second wireless power transfer link with the wireless power transfer arrangement of the contactless smartcard when the contactless smartcard is arranged on a second surface portion of the enrollment assistance device, the second conductor spiral having a first conductor end inside the second conductor spiral and a second conductor end outside the second conductor spiral, wherein the first conductor end is conductively connected to a first capacitive coupling pad of the second conductor spiral and the second conductor end is conductively connected to a second capacitive coupling pad of the second conductor spiral,
- wherein the first capacitive coupling pad of the first conductor spiral overlaps with the second capacitive coupling pad of the second conductor spiral, and the second capacitive coupling pad of the first conductor spiral overlaps with the first capacitive coupling pad of the second conductor spiral;
- and
- a contactless smartcard including a biometric arrangement and a wireless power transfer arrangement,
- wherein the contactless smartcard is arranged on the second surface portion of the enrollment assistance device.
5 more elements
Dependencies are inferred from the claim text.