Abstract:
Embodiments disclosed herein include a device with an integrated acoustics function that includes a patterned touch screen cover, an acoustic thin film, a plurality of electrodes, and a substrate. In some embodiments, the substrate is coupled to the acoustic thin film and reduces heat loss from the acoustic thin film through the substrate. The acoustic thin film may be coupled to the patterned touch screen cover and conducts an oscillating electrical current provided by the plurality of electrodes, thereby acting as a nano-scale acoustic generator. In still some embodiments, the patterned touch screen cover provides an array of microspeakers and a viewing area, where the array of microspeakers is disposed around a perimeter of the patterned touch screen cover.
Abstract:
Methods of conveying a glass ribbon are provided that each includes the step of conveying the glass ribbon over a support device with a cushion of fluid supporting the glass ribbon over the support device. Each method further includes the step of monitoring a physical contact event between the glass ribbon and the support device by detecting an acoustic signal associated with the physical contact event. In further examples, glass ribbon conveying apparatus are provided that each includes a support device configured to support a glass ribbon over the support device with a cushion of fluid. Each apparatus further includes an acoustic sensor configured to monitor a physical contact event between the glass ribbon and the support device by detecting an acoustic signal associated with the physical contact event.
Abstract:
Disclosed herein are speaker assemblies and acoustic devices comprising a panel having a long side and a short side, at least one transducer configured to excite the panel at a plurality of excitation locations on the panel to generate a wave having a wave front substantially perpendicular to the long side and propagating toward the short side of the panel and, optionally, at least one attenuating component mounted to the panel. Methods for generating an acoustic sound are also disclosed herein.
Abstract:
Apparatus and methods of separating a glass ribbon are provided. In one embodiment, an apparatus for severing glass ribbon includes a plurality of manufacturing components arranged into a travel path, a glass cutting device, and a severing zone positioned in a downstream direction from the glass cutting device, where the severing zone comprising a targeted separation region along the travel path. The apparatus also includes an acoustic transmitter positioned in a first direction from the targeted separation region, an acoustic receiver positioned in a second direction from the targeted separation region opposite the first direction, and a manufacturing component positioned along the travel path in the downstream direction from the targeted separation region.
Abstract:
Touch systems and methods that employ acoustic sensing in a thin glass sheet are disclosed. The touch system includes a generally planar acoustic-sensing assembly that includes the thin glass sheet. Thin-film piezoelectric acoustic transducers are arranged on the top surface or the bottom surface and adjacent the perimeter and serve as either transmitters or receivers. A signal-processing algorithm run on a controller is used to process the receiver signals to determine at least one characteristic of a touch event. Use of a thin glass sheet allows for the acoustic transducers to operate at a frequency f in the range from 0.5 MHz to 5 MHz, thereby providing for excellent pressure sensitivity and spatial resolution of touch events.
Abstract:
Methods of conveying a glass ribbon are provided that each includes the step of conveying the glass ribbon over a support device with a cushion of fluid supporting the glass ribbon over the support device. Each method further includes the step of monitoring a physical contact event between the glass ribbon and the support device by detecting an acoustic signal associated with the physical contact event. In further examples, glass ribbon conveying apparatus are provided that each includes a support device configured to support a glass ribbon over the support device with a cushion of fluid. Each apparatus further includes an acoustic sensor configured to monitor a physical contact event between the glass ribbon and the support device by detecting an acoustic signal associated with the physical contact event.
Abstract:
Disclosed herein are speaker assemblies and acoustic devices comprising a panel having a long side and a short side, at least one transducer configured to excite the panel at a plurality of excitation locations on the panel to generate a wave having a wave front substantially perpendicular to the long side and propagating toward the short side of the panel and, optionally, at least one attenuating component mounted to the panel. Methods for generating an acoustic sound are also disclosed herein.
Abstract:
Embodiments disclosed herein include a device with an integrated acoustics function that includes a patterned touch screen cover, an acoustic thin film, a plurality of electrodes, and a substrate. In some embodiments, the substrate is coupled to the acoustic thin film and reduces heat loss from the acoustic thin film through the substrate. The acoustic thin film may be coupled to the patterned touch screen cover and conducts an oscillating electrical current provided by the plurality of electrodes, thereby acting as a nano-scale acoustic generator. In still some embodiments, the patterned touch screen cover provides an array of microspeakers and a viewing area, where the array of microspeakers is disposed around a perimeter of the patterned touch screen cover.
Abstract:
A sound absorbing panel and method therefor comprising providing a first sheet of photosensitive material, applying a first mask having a first plurality of features to the first sheet of photosensitive material, exposing the masked material to ultraviolet light, heating the first sheet of photosensitive material to form crystals in exposed portions of the first sheet, and etching the crystals to form a second plurality of features in the first sheet of photosensitive material.
Abstract:
A sound absorbing panel and method therefor comprising providing a first sheet of photosensitive material, applying a first mask having a first plurality of features to the first sheet of photosensitive material, exposing the masked material to ultraviolet light, heating the first sheet of photosensitive material to form crystals in exposed portions of the first sheet, and etching the crystals to form a second plurality of features in the first sheet of photosensitive material.