Patent ID: 11887398
Assignee: SENSEL, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 19:
20. A system comprising:
a substrate comprising:
an aperture extending from a top side to a bottom side of the substrate; and
a first multi-layer inductor encircling the aperture;

a cover layer:
arranged over the substrate; and
cooperating with the aperture of the substrate to define a housing;

a touch sensor layer:
interposed between the substrate and the cover layer; and
comprising a set of drive and sense electrode pairs arranged across the touch sensor layer;

a fingerprint reader:
arranged within the housing; and
configured to permeate through the cover layer and the touch sensor layer to scan a fingerprint applied over the cover layer;

a first magnetic element:
defining a first polarity facing the first multi-layer inductor; and
configured to inductively couple the first multi-layer inductor responsive to application of a force on the cover layer; and

a controller configured to:
read a first set of electrical values from the set of drive and sense electrode pairs;
at a first time, in response to detecting presence of a first touch input on the cover layer based on the first set of electrical values:
read a first set of fingerprint values from the fingerprint reader;
generate a first fingerprint image based on the first set of finger print values; and
in response to the first fingerprint image deviating from a target fingerprint image, trigger a first oscillating voltage across the first multi-layer inductor during a first haptic feedback cycle to induce alternating magnetic coupling between the first multi-layer inductor and the first magnetic element and oscillate the cover layer.