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

Claim 15:
16. A system comprising:
a substrate comprising:
an aperture extending from a top side to a bottom side of the substrate;
a first multi-layer inductor encircling the aperture;
a bottom layer:
arranged below the first multi-layer inductor; and
comprising a set of force sense electrodes located proximal a perimeter of the substrate;

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

fingerprint reader:
arranged within the housing; and
configured to permeate through the cover 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 force sense electrodes;
interpret a first force magnitude for a first fingerprint input applied on the cover layer based on the first set of electrical values; and
at a first time, in response to the first force magnitude exceeding a target force magnitude:
read a first set of fingerprint values from the fingerprint reader;
in response to the first set of fingerprint values deviating from a target set of fingerprint values, 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.