Abstract: The speaker coil in a dynamic speaker in a mobile computing device can be used to generate radio frequency (RF) signals having a frequency of about 100 kHz or greater. A speaker amplifier drives the dynamic speaker to produce sound and RF circuitry drives the speaker amplifier to generate the RF signals having a frequency of about 100 kHz or greater. The speaker coil can comprise a tap at an appropriate point between the ends of the coil to cause the coil to operate at resonance over a desired RF frequency band. A low-pass filter can be positioned at the speaker amplifier output to protect the speaker amplifier from RF energy generated by the RF circuitry and a high-pass filter can be positioned at the output of the RF circuitry to protect the RF circuitry from audio energy generated by the speaker amplifier.

Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to monitor thermal degradation of a compute device. One such method includes calculating, by executing instructions with processor circuitry, a thermal degradation value based on an equation, the equation generated based on testing of thermal interface materials having varying degrees of degradation. The method also includes comparing, by executing instructions with the processor circuitry, the thermal degradation value to a thermal degradation threshold to determine whether the thermal degradation threshold is satisfied, and, when the thermal degradation threshold is satisfied, triggering generation of a thermal degradation alert.

Abstract: Methods and apparatus to implement microphones in thin form factor electronic devices are disclosed. An electronic device includes a chassis having an exterior surface and an interior surface. The chassis includes a plurality of holes extending through the chassis. The plurality of holes are within a 1 mm diameter circular area of the chassis. The electronic device further includes a microphone coupled to the interior surface of the chassis adjacent the circular area of the chassis.

Abstract: A system, article, and method of environment-sensitive wake-on-voice initiation uses ultrasound signals.

Abstract: In one embodiment, a portable computing device is described. The portable computing device includes a first surface comprising at least one user interface. The portable computing device also includes a second surface opposite the first surface. Further, the portable computing device includes at least one speaker port in the first surface. Further yet, the portable computing device includes a collapsible speaker chamber configured on the second surface opposite the at least one speaker port. Moreover, the portable computing device includes a speaker configured in the portable computing device between the speaker port and the collapsible speaker chamber.

Abstract: Systems, apparatus, articles of manufacture, methods are disclosed to reshape fan noise of a fan of an electronic device. An example system includes a microphone to detect a first acoustic signal including fan noise. The example system also includes a processor to: identify a tone in the first acoustic signal; and determine a gain to add to the first acoustic signal to mask the tone. In addition, the example system includes a sound transducer to present a second acoustic signal including the gain.

Abstract: In one embodiment, a portable computing device is described. The portable computing device includes a first surface comprising at least one user interface. The portable computing device also includes a second surface opposite the first surface. Further, the portable computing device includes at least one speaker port in the first surface. Further yet, the portable computing device includes a collapsible speaker chamber configured on the second surface opposite the at least one speaker port. Moreover, the portable computing device includes a speaker configured in the portable computing device between the speaker port and the collapsible speaker chamber.

Abstract: Methods and apparatus to implement microphones in thin form factor electronic devices are disclosed. An electronic device includes a chassis having an exterior surface and an interior surface. The chassis includes a plurality of holes extending through the chassis. The plurality of holes are within a 1 mm diameter circular area of the chassis. The electronic device further includes a microphone coupled to the interior surface of the chassis adjacent the circular area of the chassis.

Abstract: Embodiments are directed to notifying a user of a computing device in response to detectable events. A context assessment generates context indicia relating to usage of the computing device based on sensor data and content data of the computing device. An event descriptor assessment produces a master set of event descriptors based on the context indicia and on event descriptor selection criteria, with the event descriptors representing events monitorable by the computing device. An event descriptor relevance assessment is made to produce a smaller active subset of event descriptors containing events to be monitored by the computing device such that in response to detection of any of the events to be monitored a user notification is triggered.