Abstract: A filter device is provided that includes a plurality of bulk acoustic resonators that each includes a piezoelectric layer; a conductor pattern on the piezoelectric layer and including an interdigital transducer (IDT) having a first plurality of fingers extending from a first busbar and a second plurality of fingers extending from the second busbar, such that the first plurality of fingers and the second plurality of fingers are interleaved with each other; a dielectric strip that overlaps a margin of the first plurality of fingers and that extends into a gap between ends of the first plurality of fingers and the second busbar. Moreover, a thickness ts of the dielectric strip a first bulk acoustic resonator of the plurality of bulk acoustic resonators is different than a thickness ts of the dielectric strip of a second bulk acoustic resonator of the plurality of bulk acoustic resonators.

Abstract: Acoustic filters, resonators and methods are disclosed. An acoustic filter device includes a substrate; a piezoelectric layer attached to the substrate, wherein at least a portion of the piezoelectric layer is disposed over a cavity of the acoustic resonator device; and an interdigital transducer (IDT) on a surface of the piezoelectric layer, the IDT including interleaved fingers extending at least over the portion of the piezoelectric layer disposed over the cavity. The cavity has at least one rounded corner, and a portion of interleaved fingers extend from at least one busbar. Moreover, at least a portion of the rounded corner of the cavity is under the at least one busbar in a plan view of the piezoelectric layer.

Abstract: A filter device is provided that includes a substrate having a surface; and a piezoelectric layer over a first cavity and a second cavity. The piezoelectric layer is attached to the surface of the substrate either directly or via one or more intermediate layers. An area of the piezoelectric layer has a first thickness for at least one first resonator that forms at least one first membrane over the first cavity. Moreover, an area of the piezoelectric layer has a second thickness for at least one second resonator that forms at least one second membrane over the second cavity, the second thickness being thinner than the first thickness. A bottom of the first cavity that is opposite from the at least one first membrane extends farther down away from the piezoelectric layer than a bottom of the second cavity that is opposite from the at least one second membrane.

Abstract: A radio frequency filter includes bulk acoustic resonator chips that each include a substrate; a piezoelectric plate that includes multiple separate plates; and a conductor pattern on the piezoelectric layer and including an interdigitated transducer (IDT) with interleaved fingers on the piezoelectric layer opposite the substrate. The filter further includes an interposer having a surface facing the piezoelectric layer of each of the plurality of bulk acoustic resonator chips; a conductor pattern on the surface of the interposer; a conductive metal bump between the piezoelectric layer and the interposer that electrically connects the plurality of bulk acoustic resonator chips to the interposer; and a cover bonded to the substrates of the plurality of bulk acoustic resonator chips and to the interposer, wherein the cover seals an interior of the plurality bulk acoustic resonator chips.

Abstract: An acoustic resonator device is provided that includes a wafer having a wafer surface and a wafer conductor pattern on the wafer surface; a piezoelectric layer having front and back surfaces, a portion of the piezoelectric layer being over a cavity between the wafer and the piezoelectric layer, and the wafer conductor pattern; a device conductor pattern including a first metal layer including an interdigital transducer on the front surface of the piezoelectric layer and facing the wafer, and a second metal layer attached to a portion of the device conductor pattern to provide an electrical connection between the IDT and the wafer conductor pattern. The second metal layer is bonded to the wafer conductor pattern and the piezoelectric layer comprises openings extending therethrough.

Abstract: A bulk acoustic resonator device is provided that includes a bulk acoustic resonator chip having a substrate; a piezoelectric layer attached to the substrate either directly or via one or more intermediate layers; and a first conductor pattern on the piezoelectric layer, the first conductor pattern comprising an interdigitated transducer (IDT). Moreover, an interposer is provided having a surface facing the piezoelectric layer and having a second conductor pattern on the surface of the interposer. A conductive metal bump is between the piezoelectric layer and the interposer that electrically connects the first conductor pattern to the second conductor pattern; and a cover is bonded both to the substrate and to a portion of the surface of the interposer. The cover seals an interior of the bulk acoustic resonator chip.

Abstract: A top-emitting pixel device is disclosed. The pixel device may include a reflective bottom electrode disposed over a substrate, a first charge transport layer disposed over the reflective bottom electrode, an emissive layer disposed over the first charge transport layer, and a second charge transport layer disposed over the emissive layer. Further, the pixel device may include a patterned transparent polymer electrode disposed over the second charge transport layer and extending laterally to cover an emissive area of the top-emitting pixel device, and a patterned auxiliary electrode disposed at least partially over the patterned transparent polymer electrode outside of the emissive area of the top-emitting pixel device to make direct electrical contact with the patterned transparent polymer electrode.

Abstract: An organic light-emitting device (OLED) display is provided. The OLED display includes a thin-film transistor (TFT) substrate having a plurality of TFTs and a plurality of data lines that control the plurality of TFTs. The OLED display also includes a conductive shielding layer disposed over the TFT substrate and an OLED layer disposed over the conductive shielding layer. The OLED layer includes a plurality of OLEDs that are driven by the plurality of TFTs. The OLED layer also includes a touch panel layer disposed over the OLED layer. The conductive shielding layer is configured to reduce noise coupling between the TFT substrate and the touch panel layer.

Abstract: A flexible touch panel apparatus includes a series of first electrodes extending along a first direction, at least one second electrode extending along a second direction and defining a bending axis of the flexible touch panel. An elastomeric layer is located between the series of first electrodes at least second electrode. A series of third electrodes are extending along the second direction parallel to the bending axis, and an insulator layer is located between at least one second electrode and the series of third electrodes. At least one second electrode is capacitively coupled to at least one of the series of first electrodes for bend sensing in the flexible touch panel along the bending axis, and the third electrodes are capacitively coupled to the first electrodes for touch sensing on the flexible touch panel.

Abstract: A touch panel includes at least one capacitive touch sensing electrode, at least one first force sensing electrode, a second force sensing electrode, an elastomeric layer between the at least one capacitive touch sensing electrode and the at least one first force sensing electrode, and a piezo-electric layer between the least one first force sensing electrode and the second force sensing electrode, where the at least one capacitive touch sensing electrode, the at least one first force sensing electrode, and the second force sensing electrode are coupled to a sensing integrated circuit capable of sensing a projected capacitance touch, a piezo-electric force, and an elastomeric force simultaneously.

Abstract: Systems and methods for creating and administering and a real estate private index fund as a single investable instrument which tracks a non-investable real estate index of open-ended funds with minimal tracking error.

Abstract: Systems and methods for creating and administering and a real estate private index fund as a single investable instrument which tracks a non-investable real estate index of open-ended funds with minimal tracking error.

Abstract: The system and method for forming an ignition sequencer comprising two inseparable portions (a body and an armature) where an armature is articulable with respect to a body to allow for the existence of no less than two distinct stages of the ignition sequence through the articulating motion of the additively-manufactured armature. The ignition sequencer assembly architecture allows for installation of an internal energetic compound while all components are assembled and interconnected. The ignition sequencer assembly architecture allows for installation into a next higher-level assembly using a single, uniaxial, force.

Abstract: A belt tensioner for an accessory drive of an internal combustion engine having a lever arm rotatably assembled to a hydraulic strut assembly. The hydraulic strut assembly including a fixing eye for rotatably mounting to a mounting boss of an engine, the fixing eye having a cupped portion at a first end to seat onto the mounting boss and a travel limiter at a second end extending along an axis of the hydraulic strut to limit travel of the lever arm toward the fixing eye.

Abstract: A capacitive touch sensor includes an array of electrode elements, each electrode element including a drive electrode and a sense electrode, the drive electrode and the sense electrode forming at least one mutual coupling capacitor in each electrode element. A controller is operatively coupled to the array of electrode elements, the controller configured to measure the at least one mutual coupling capacitance over at least one measurement period. In addition, excitation signals applied during the at least one measurement period are balanced to reduce the effect of baseline capacitance.

Abstract: A belt tensioner for an accessory drive of an internal combustion engine having a lever arm rotatably assembled to a hydraulic strut assembly. The hydraulic strut assembly including a fixing eye for rotatably mounting to a mounting boss of an engine, the fixing eye having a cupped portion at a first end to seat onto the mounting boss and a travel limiter at a second end extending along an axis of the hydraulic strut to limit travel of the lever arm toward the fixing eye.

Abstract: A method for converting image data within a source gamut into modified image data within a destination gamut, is provided including utilizing a processor to operate on input red-green-blue (RGB) data within the source gamut with a multivariate polynomial function to produce modified RGB data within the destination gamut, wherein the polynomial function includes coefficients optimized in accordance with a predefined criteria such that when displayed on a display device having the destination gamut the modified RGB data have a colour appearance representing a perceptually optimised transform of the input RGB data.

Abstract: A method for obtaining three-dimensional (3D) position information of one or more user-controlled objects positioned above a display panel, the display panel providing a plurality of two-dimensional (2D) directional views of the user-controlled objects from corresponding different directions. The method includes the steps of: detecting the presence of 2D objects within each of the directional views, and estimating corresponding 2D position information; estimating 3D position information for one or more 3D objects which would account for the detected 2D objects within the directional views; determining quality measures for the estimated 2D position information and/or the estimated 3D position information; and determining 3D position information of the one or more user-controlled objects as a function of the estimated 3D position information and the quality measures.

Abstract: A camera flash comprises a light guide arranged to extract light at least through one surface; and one or more light sources arranged, in use, to emit light into the lightguide. Each light source is an LED or a laser diode. The camera flash is connectable, in use, to drive circuitry, the drive circuitry being for driving the light source(s) to emit a pulse of light. The waveguide spreads out the light from the light source(s), so that a flash of light from the camera flash does not present a safety risk, while minimising loss of the light from the light source(s). The camera flash can thus provide a high overall optical output, spread over an extended area (as defined by the waveguide). The lightguide may for example be disposed around a camera module of a mobile telephone camera.