Abstract: A capacitance module may include a stack of layers, a set of capacitance electrodes disposed on a surface of the stack, a first actuator, including an inductance coil disposed on at least one surface of the stack and a magnetic field source positioned to at least partially overlap with the inductance coil, a processor in communication with the set of capacitance electrodes and the first actuator, and memory in communication with the processor. The memory may contain programmed instructions that cause the processor, when executed, to generate a composite drive signal having a haptic component and an audio component and drive the first actuator with the composite drive signal. The haptic component may have a lower center frequency than the audio component.

Abstract: One variation of a system for a touch sensor includes: a substrate; a cover layer; a spacer element; a second electrode; and a controller. The substrate includes: a support location arranged on the substrate; and a first electrode arranged proximal the support location. The cover layer defines a touch sensor surface arranged over the substrate. The spacer element: is coupled to the substrate at the support location; and yields to displacement of the substrate downward responsive to forces applied to the touch sensor surface. The second electrode: is arranged opposite the first electrode to define a nominal gap; and is configured to effect electrical values of the first electrode responsive to displacement of the substrate. The controller is configured to: read a set of electrical values from the first sense electrode; and interpret a first force magnitude of a first touch input based on the set of electrical values.

Abstract: An apparatus may include a substrate in a capacitance module, a first cavity in the substrate, a first housing in the cavity, a piezoelectric haptic actuator in the housing, and a dissipation opening defined in the housing that increases air flow from the first cavity to the outside of the apparatus.

Abstract: A capacitance module may include a set of electrodes, a processor in communication with the set of electrodes and memory in communication with the processor. The memory may include programmed instructions that cause the capacitance module, when executed, to perform a calibration, the calibration including prompting a press input, storing a press attribute of a press measurement associated with the press input, and determining a type of unprompted input by consulting the stored press attribute.

Abstract: A capacitance module may include a capacitance electrode on a first substrate, shielding material disposed on a second substrate where the second substrate is aligned with the first substrate, an antenna where the shielding material is between the antenna and the capacitance electrode, and a continuous opening defined in the shielding material. The continuous opening may include a branching shape, the branching shape having a stem and multiple branches extending from the stem; and the continuous opening may overlap with the antenna.

Abstract: A capacitance module may include a set of electrodes, a controller in communication with the set of electrodes, and memory in communication with the controller. The memory may include programmed instructions that cause the controller, when executed, to store a touch attribute of a touch capacitance measurement associated with a touch input, store a proximity attribute of a proximity capacitance measurement associated with a proximity input, and update the proximity attribute based on an unprompted capacitance measurement.

Abstract: One variation of a system for detecting and responding to touch inputs with haptic feedback includes: a magnetic element rigidly coupled to a chassis; a substrate; a touch sensor interposed between the substrate and a touch sensor surface; an inductor coupled to the substrate below the touch sensor surface and configured to magnetically couple to the magnetic element; a coupler coupling the substrate to the chassis, compliant within a vibration plane approximately parallel to the touch sensor surface, and locating the inductor approximately over the magnetic element; and a controller configured to intermittently polarize the inductor responsive to detection of a touch input on the touch sensor surface to oscillate the substrate in the vibration plane relative to the chassis.

Abstract: A capacitance module may include a stack of layers, a capacitance measuring circuit disposed on at least on of the layers of the stack of layers, the capacitance measuring circuit defining a capacitance input sensitive area associated with a face of the at least one layer, an optical pressure sensor incorporated into the stack of layers aligned within the input sensitive area, and a controller in communication with the capacitance measuring circuit and the optical pressure sensor, where the optical pressure sensor is configured to detect deformation from a user input to the stack of layers within the capacitance input sensitive area.

Abstract: A capacitance module may include a set of electrodes; processing resources in communication with the set of electrodes; an embedded antenna in communication with the processing resources; and memory in communication with the processing resources; wherein the memory includes programmed instructions that cause the processing resources, when executed, to receive a capacitance input from the set of electrodes; compare an input attribute of the capacitance input to a stored attribute; and send an instruction to trigger a response with the embedded antenna based, at least in part, on the comparison.

Abstract: A capacitance module may include a set of electrodes, a processor in communication with the set of electrodes and memory in communication with the processor. The memory may include programmed instructions that cause the capacitance module, when executed, to perform a calibration, the calibration including prompting a press input, storing a press attribute of a press measurement associated with the press input, and determining a type of unprompted input by consulting the stored press attribute.

Abstract: A user interface module may include a stack of layers; a baseplate connected to an undersurface of the stack of layer, where the baseplate extends about a periphery of the stack of layers; the baseplate defining an inner edge of an aperture; an inductor incorporated into the undersurface is surrounded by the inner edge of the aperture; and a magnet assembly is attached to the undersurface and overlaps with the inductor.

Abstract: A capacitance module may include at least one capacitive sensor layer; an antenna connected to the capacitive sensor layer; and at least one haptic actuator connected to the capacitive sensor layer.

Abstract: A capacitance module may include a set of electrodes, a processor in communication with the set of electrodes, and memory in communication with the processor. The memory may include programmed instructions that cause the capacitance module, when executed, to determine a user identity by comparing input attributes of an unprompted input with at least one user attribute stored in the memory.

Abstract: Interpolation electrode patterning for capacitive-grid touch sensor is provided herein. Provided is a device that includes multiple column electrodes that include a first column electrode divided into a plurality of first column sub-electrodes and at least a second column electrode divided into a plurality of second column sub-electrodes. The first column electrode and the second column electrode are adjacent column electrodes. Further, first column sub-electrodes of the plurality of first column sub-electrodes are interleaved with second column sub-electrodes of the plurality of second column sub-electrodes in a first direction. A first layer of the device comprises the multiple column electrodes and a second layer of the device comprises the multiple row electrodes.

Abstract: A capacitance module may include a sensor layer having a set of electrodes; a component layer having a controller in communication with the set of electrodes; a shield layer positioned between the sensor layer and the component layer; an antenna disposed on the component layer; and anti-warping segments adjacent to the antenna and disposed on the component layer. The anti-warping segments may be electrically isolated from each other.

Abstract: A capacitance module may include a sensor layer having a set of electrodes; a component layer having a controller in communication with the set of electrodes; a shield layer positioned between the sensor layer and the component layer; an antenna disposed on the component layer; and anti-warping segments adjacent to the antenna and disposed on the component layer. The anti-warping segments may be electrically isolated from each other.

Abstract: A system includes: a substrate including an edge supported by a chassis; a first electrode spanning a first area of the substrate and arranged proximal a center of the substrate; and a second electrode spanning a second area, greater than the first area, on the substrate and interposed between the first electrode and the edge of the substrate. The system further includes a first coupling region: facing the first electrode; and electrically coupling to the first electrode to yield a first electrical value at the first electrode responsive to application of a first force magnitude proximal the center of the substrate. The system also includes a second coupling region: facing the second electrode; and electrically coupling to the second electrode to yield a second electrical value, approximating the first electrical value, at the second electrode responsive to application of the first force magnitude proximal the center of the substrate.

Abstract: A capacitance module may include at least one touch electrode on a first surface of the capacitance module; a first portion of an inductance coil deposited on a second surface of the capacitance module; a second portion of the inductance coil deposited on a third surface of the capacitance module; a first coil shield deposited on the second surface of the capacitance module; and a second coil shield deposited on the third surface of the capacitance module; where the first portion of the inductance coil and the second portion of the inductance coil are electrically connected; where the inductance coil is positioned to interact with a magnet adjacent to the inductance coil; and where the first coil shield and the second coil shield are positioned to reduce electromagnetic interference between the inductance coil and other electronic components of the capacitance module.

Abstract: One variation of a keyboard system includes: a substrate including an array of inductors; a tactile layer arranged over the substrate defining an array of key locations over the array of inductors; an array of magnetic elements, each arranged within the tactile layer at a key location configured to inductively couple to an adjacent inductor and configured to move relative to the adjacent inductor responsive to application of a force on the tactile layer at the key location; and a controller configured to read electrical values from the inductors. In response to detecting a change in electrical value at a first inductor, the controller also configured to: register a first keystroke of a first key type associated with a first key location defined over the first inductor; and drive an oscillating voltage across the first inductor to oscillate the tactile layer over the substrate during a haptic feedback cycle.

Abstract: One variation of a system includes a substrate including: a first layer including a first spiral trace coiled in a first direction; a second layer arranged below the first layer and including a second spiral trace coiled in a second direction and cooperating with the first spiral trace to form a multi-layer inductor; and a sensor layer including an array of drive and sense electrode pairs. The system also includes: a cover layer arranged over the substrate and defining a touch sensor surface; and a first magnetic element arranged below the substrate and defining a first polarity facing the multi-layer inductor. The system further includes a controller configured to drive an oscillating voltage across the multi-layer inductor to oscillate the substrate in response to detecting an input on the touch sensor surface based on electrical values from the set of drive and sense electrode pairs.