# US 12,761,739 B2 · Human-computer interface system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,761,739 B2 - Document ID: US12761739B2 - Status: Granted - Kind: B2 - Application number: 19/178,473 - Filed: 2025-04-14 - Published: 2026-02-26 - Granted: 2026-10-13 - Earliest claimed: 2020-07-03 - Assignees: Cirque Corporation - Applicants: Cirque Corporation - Inventors: Darren Lochun; Ilya Daniel Rosenberg; Shuangming Li; Ninad Sathe; Harsha Rao - Web page: https://patentgrep.com/patent/US12761739B2 ## CPC - G06F 3/0202: {Constructional details or processes of manufacture of the input device} - G06F 3/016: {Input arrangements with force or tactile feedback as computer generated output to the user} - H01H 13/85: characterised by tactile feedback features - H01H 2003/008: {with a haptic or a tactile feedback controlled by electrical means, e.g. a motor or magnetofriction} - H01H 13/785: characterised by the material of the contacts, e.g. conductive polymers - H01H 2201/036: Variable resistance - H01H 2215/05: electromechanical - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00) ## Abstract One variation of a touch sensor system includes a set of touch layers: spanning a first area; and including a set of electrodes. The system further includes a set of inductor layers: arranged below the set of touch layers; spanning a second area less than the first area; and including a set of spiral traces defining an inductor. The system also includes a magnetic element arranged below the set of inductor layers and defining a first polarity facing the inductor. The system further includes a controller configured to: read a set of electrical values from the set of electrodes; interpret a force magnitude of a touch input based on the set of electrical values; and in response to the force magnitude exceeding a force magnitude, drive an oscillating voltage across the inductor to induce alternating magnetic coupling between the inductor and the magnetic element. ## Claims ### Claim 1 A system comprising: a first set of layers; a first set of electrodes arranged on the first set of layers; a second set of layers arranged below the first set of layers; a first inductor comprising a planar trace coupled to the second set of layers; a first magnetic element facing the first inductor; and a controller configured to: read a first set of electrical values from the first set of electrodes; interpret a force magnitude of a touch input applied to the first set of layers based on the first set of electrical values; and in response to the force magnitude exceeding a threshold force magnitude, apply a first power signal across the first inductor to induce alternating magnetic coupling between the first inductor and the first magnetic element; wherein the inductor includes traces arranged across at least a portion of the second layer to define a multi-layer inductor; wherein the traces of the multi-layer inductor are electrically interconnected through vias. ### Claim 2 (depends on 1) The system of claim 1, wherein the planar trace is a spiral trace. ### Claim 3 (depends on 1) The system of claim 1, wherein the inductor is a single coil inductor. ### Claim 4 (depends on 1) The system of claim 1, wherein the traces are coaxially aligned. ### Claim 5 (depends on 1) The system of claim 1, wherein a first spiral trace of the multi-layer inductor defines a first planar coil spiraling inwardly in a clockwise direction from the first end at a periphery of the first planar coil to the second end proximal a center of the first planar coil and a second spiral trace is coiled in a second direction opposite the first direction and defines a third end that is electrically coupled to the second end of the first spiral trace. ### Claim 6 (depends on 1) The system of claim 1, wherein the controller 190 is electrically connected to at least two spiral traces of the multi-layer inductor and configured to drive an oscillating voltage through the multi-layer inductor during a haptic feedback cycle to induce an alternating magnetic field through the multi-layer inductor. ### Claim 7 (depends on 1) The system of claim 1, wherein including an array of capacitance sensors disposed on the second set of layers, where the array is responsive to displacement of the set of layers. ### Claim 8 (depends on 1) The system of claim 1, wherein the first magnetic element is disposed on a baseplate, and an array of capacitance sensors is integrated into the baseplate, where the array is responsive to displacement of the set of layers. ### Claim 9 (depends on 1) The system of claim 1, wherein an array of capacitance force sensors is formed on the baseplate and the second set of layers in a mutual-capacitance configuration. ### Claim 10 (depends on 9) The system of claim 9, wherein in response to a force input on the first set of layers, a set of springs integrated into the system yields to the force input such that a first set of electrodes of the array and a second set of electrodes of the array incorporated into the baseplate move closer to each other. ### Claim 11 (depends on 1) The system of claim 1, wherein an array of capacitance force sensors formed on the baseplate are in a self-capacitance configuration. ### Claim 12 (depends on 1) The system of claim 1, wherein the first magnetic element is arranged such that an axis of vibration of the first inductor is parallel to the axis of the magnetic element. ### Claim 13 (depends on 1) The system of claim 1, wherein the controller is configured to drive the first inductor to mimic a sensation of a click. ### Claim 14 A system, comprising: a first set of layers; a first set of electrodes arranged on the first set of layers; a second set of layers arranged below the first set of layers; a first multi-layer inductor comprising planar traces coupled to individual layers of the second set of layers; a second multi-layer inductor comprising planar traces coupled to individual layers of the second set of layers; magnetic elements facing the first multi-layer inductor and the second multi-layer inductor; and a controller configured to: interpret an input applied to the first set of layers; and in response to the input exceeding a threshold force magnitude, drive the first multi-layer inductor and the second multi-layer inductor to induce vibrations in the first multi-layer inductor that are substantially parallel with the vibrations of the second multi-layer inductor; wherein the planar traces of the first multi-layer inductor are electrically interconnected through electrically conductive structures and the planar traces of the second multi-layer inductor are electrically interconnected through electrically conductive structures. ### Claim 15 A system, comprising: a set of layers; a first multi-layer inductor comprising planar traces coupled to individual layers of the set of layers; a second multi-layer inductor comprising planar traces coupled to individual layers of the set of layers; magnetic elements facing the first multi-layer inductor and the second multi-layer inductor; and a controller configured to: drive the first multi-layer inductor and the second multi-layer inductor to induce vibrations in the first multi-layer inductor that are substantially parallel with the vibrations of the second multi-layer inductor; wherein the planar traces of the first multi-layer inductor are electrically interconnected through electrically conductive structures and the planar traces of the second multi-layer inductor are electrically interconnected through electrically conductive structures. ### Claim 16 (depends on 15) The system of claim 15, wherein the planar traces of the first multi-layer inductor are coaxially aligned. ### Claim 17 (depends on 15) The system of claim 15, wherein a first planar trace of the first multi-layer inductor defines a first planar coil spiraling inwardly in a clockwise direction from a first end at a periphery of the first planar coil to the second end proximal a center of the first planar coil and a second spiral trace is coiled in a second direction opposite the first direction and defines a third end that is electrically coupled to the second end of the planar spiral trace.