Patent ID: 11880506
Assignee: SENSEL, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 1:
2. The keyboard system of claim 1, wherein the controller is further configured to
read a second set of electrical values from the array of inductors at a second time succeeding the first time; and
in response to detecting a second change in electrical value at a second inductor, in the array of inductors, in the second set of electrical values:
register a second keystroke of a second key type different from the first key type and associated with a second key location, in the array of key locations, defined over the second inductor; and
drive the oscillating voltage across the second inductor during a second haptic feedback cycle to:
induce alternating magnetic coupling between the second inductor and a second magnetic element, in the array of magnetic elements, arranged within the tactile layer at the second key location; and
oscillate the tactile layer, at the second key location, relative to the substrate.