Abstract:
A light-based skin contact detector is described, including a boot having an index of refraction less than or equal to another index of refraction associated with skin at a frequency of light, a light emitter and detector coupled to the boot and configured to measure an amount of light energy reflected by an interface of the boot, and a digital signal processor configured to detect a change in the amount of light energy reflected by the interface. Embodiments relate to methods for detecting skin contact by measuring an amount of energy reflected by an interface when a boot is not in contact with skin, measuring another amount of energy reflected by another interface when the boot is in contact with the skin, and detecting a change between the amount of energy and the another amount of energy using a digital signal processor.
Abstract:
An acoustic vibration sensor, also referred to as a speech sensing device, is provided. The acoustic vibration sensor receives speech signals of a human talker and, in response, generates electrical signals representative of human speech. The acoustic vibration sensor includes at least one diaphragm positioned adjacent to a front port and at least one coupler. The coupler couples a first set of signals to the diaphragm while isolating the diaphragm from the second set of signals. The coupler includes at least one material with acoustic impedance matched to the acoustic impedance of human skin.
Abstract:
A headset (e.g., on-ear headphone, over-ear headphone, earphones, earbuds, in-ear headphone, etc.) may include one or more transducers (e.g., microphones, accelerometers, vibration sensors, etc.) operative to measure leakage of sound generated by a loudspeaker(s) of the headset (e.g., leakage from an imperfect seal between a headset interface and a pinna interface). The headset may receive content from a memory, a wireless communications link (e.g., Bluetooth, WiFi, NFC) and/or from a wired communications link (e.g., a headphone cable or a USB cable). The headset may include systems to detect the leakage and adjust audio parameters (e.g., frequency response, equalization, etc.) caused by the leakage. Active noise cancellation and/or active leakage path(s) may be used to adjust the audio parameters.
Abstract:
Embodiments of the present application relate generally to electrical and electronic hardware, computer software, wired and wireless network communications, Bluetooth systems, RF systems, self-powered wireless devices, and consumer electronic (CE) devices. More specifically the present application relates to provision of networked based services to Bluetooth-enabled devices. The present application describes a very low-cost, multi-purpose, rapidly re-purposable Bluetooth node that may sit at the edge of a network and may be configured to allow a network system to dynamically add and remove different Bluetooth capabilities and allow for a much higher level of management of Bluetooth devices that are interacting with the network.
Abstract:
Techniques associated with a wearable device structure with enhanced motion detection by a motion sensor are described, including a band configured to be worn, a nodule coupled to the band, the nodule including a structure configured to enhance detection of movement of an adjacent skin surface, the structure having an articulator configured to rotate in a plurality of planes, and a sensor coupled to the structure and configured to detect rotational motion.
Abstract:
Embodiments of the present application relate generally to wireless electronics, wireless portable electronics, wireless media presentation devices, audio/video systems, and more specifically to passive or active RF proximity detection of wireless client devices in an environment that may or may not include wireless access points. A wireless client device may be forced, triggered, or configured to broadcast a wireless scan (e.g., an active WiFi scan) that includes data (e.g., packets) that may be discovered by a wireless media device (e.g., received by RF circuitry in the media device) and information from the wireless scan may be used by the wireless media device to detect presence of the wireless client device and/or its user, to establish a wireless data communications link with the wireless client device, to determine proximity of the wireless client device to the wireless media device, and for near field communication (NFC) with the wireless client device.
Abstract:
A system, apparatus, and method for generating a spatial user interface for an application, system or device. The user interface includes a means of representing user interface functions or commands as audio signals, with the audio signals being perceived by the user in a spatially different location depending on the function or command. A user input device is provided to enable a user to select a function or command, or to navigate through the spatial representations of the audio signals.