Abstract:
The single layer compressive substrate force sensor may include electrode patterns formed directly on a first side and second side of the compressive substrate. At least some of the electrode patterns are configured to provide a change in capacitance proportional with a compressive force applied to at least one of the electrode patterns, which compresses the compressive substrate. The single layer compressive substrate force sensor may include a first top electrode and a second top electrode pattern separated by an insulator to void contact between the electrode patterns. In operation, the first top electrode pattern and the second top electrode pattern are configured to provide projective capacitance, and thus provide detection of light touches or hover actions by an object.
Abstract:
Systems, methods, and computer-readable media are disclosed for ambient light sensing for electronic displays. In one embodiment, a device may include a cover layer, a display, and a capacitive sensor stack positioned in between the cover layer and the display. The capacitive sensor stack may include a first sensor optically coupled to the cover layer, a light guide optically coupled to the first sensor, where the light guide is translucent and compressible, and a second sensor optically coupled to the display and to the light guide. The capacitive sensor stack may be configured to detect a force received at the cover film and to compress in response to the force.
Abstract:
Various embodiments enable a first gesture to be detected from a user above a display screen of a computing device. The first gesture is detected using an imaging element of the computing device in a first position. In response to recognizing the first gesture, an input associated with the recognized first gesture is provided to an application executing thereon. The imaging element is movable and, depending on the application, can be moved to a second position. Accordingly, a second gesture is detected adjacent the computing device with the imaging element in the second position. In response to the recognized second object, a second input is provided to an appropriate application executing on the computing device.
Abstract:
Operation of a head-mounted wearable device is responsive to whether a state of the device is being worn (donned) or not worn (doffed) on the head. The device may operate in a first mode while donned and a second mode while doffed. A capacitive sensor device having an electrode positioned in a bridge of the device provides output data. The output data is processed to determine a baseline value. Later, acquired output data is compared to the baseline value to determine don/doff data indicative of whether the device is donned or doffed. Data from other sensors, may also be used in conjunction with the output data to improve accuracy of the don/doff data. For example, if the output data is above the baseline value and accelerometer data is indicative of motion greater than a motion threshold, the don/doff data may be designated as donned.
Abstract:
A head-mounted wearable device (HMWD) provides audio output using acoustic quadrupole units (AQU). The AQU produces an acoustic pattern having a first region and a second region. The first region has a first phase and the second region has a second phase that is opposite the first phase. A major axis extending through the regions is directed generally upwards from the ear canal of the user. The ear of the user is within the first region. The second region is directed upward. Bystanders are within an acoustically null region of the acoustic pattern. The acoustically null region is perpendicular to the major axis. Within the acoustically null region, the sound intensity is reduced due to destructive interference between the first phase and the second phase. As a result, the user wearing the HMWD is able hear audio output while audio amplitude perceived by the bystanders is significantly reduced.
Abstract:
A head-mounted wearable device (HMWD) with a form factor of eyeglasses incorporates a compact audio module with transducers that may be operated as an acoustic dipole or acoustic quadrupole. The audio module provides ducts that convey sound with a particular phase from a transducer to particular output ports. The phase of sound emitted from a first output port is opposite to the phase of sound emitted from a second output port. The audio module may include a pair of transducers, enabling operation as an acoustic dipole or quadrupole. The ducts are integrated into elements of the structure of the audio module, minimizing the overall size of the audio module.
Abstract:
A head-mounted wearable device incorporates a transducer into a nosepiece. Vibrations from the user's speech are transferred through the bridge of the nose and are detected by the transducer to produce an audio signal. In one implementation, a nose plate with a pair of attached nosepieces is mounted to a transducer, such as an accelerometer. The nose plate may be affixed to a front frame of the head-mounted wearable device using a motion limiter mechanism.
Abstract:
A head-mounted wearable device (HMWD) may be fashioned that includes temples that pass near each ear of the user. A temple may incorporate a bone conduction speaker (BCS) to provide audio output to the user. During wear, a portion of the BCS is in physical contact with a head of the user to transfer the vibrations from the BCS to the user. To accommodate different head shapes and sizes, a head contact piece may be mounted to the BCS. The user may add, remove, or swap the head contact piece from an assortment of such pieces to find a profile that is comfortable to the wearer and improves performance of the BCS. The head contact piece may be magnetically affixed, allowing for easy changeout.
Abstract:
A force-sensitive resistor (FSR) assembly includes first and second electrically insulative substrates. The first substrate includes a first top surface and a first bottom surface. The second substrate includes a second top surface and a second bottom surface. The first substrate is positioned such that the first bottom surface is disposed facing the second top surface. The FSR assembly also includes thermoset ink disposed between the first substrate and the second substrate.