Abstract: Acoustic noise suppression is provided in multiple-microphone systems using Voice Activity Detectors (VAD). A host system receives acoustic signals via multiple microphones. The system also receives information on the vibration of human tissue associated with human voicing activity via the VAD. In response, the system generates a transfer function representative of the received acoustic signals upon determining that voicing information is absent from the received acoustic signals during at least one specified period of time. The system removes noise from the received acoustic signals using the transfer function, thereby producing a denoised acoustic data stream.

Abstract: Techniques for positioning devices using motion data are described. Disclosed are techniques for receiving a portion of motion data from one or more sensors coupled to a first device, generating data representing a first displacement of a first device relative to a reference point based on the portion of motion data, and determining a position of the first device relative to a position of a second device based on the first displacement. Various operations may be performed based on the position of the first device. In some examples, an audio signal to be generated at a speaker coupled to the first device may be determined as a function of the position of the first device, and generation of the audio signal at the speaker coupled to the first device may be caused.

Abstract: Techniques for pairing devices using acoustic signals are described. Disclosed are techniques for receiving an acoustic signal at a microphone coupled to a first device, the acoustic signal being encoded with data representing a first parameter associated with a second device, receiving an electromagnetic signal at an antenna coupled to the first device, the electromagnetic signal being encoded with data representing a second parameter associated with the second device, and determining a match between the first parameter and the second parameter. A pairing may then be generated between the first device and the second device. A pairing may include generating data representing a key, the key being configured to authenticate a pairing of the first device and the second device. A pairing may create a secure connection between the first device and the second device.

Abstract: Techniques associated with an acoustic vibration sensor are described, including a first detector that receives a first signal and a second detector that receives a second signal and a third signal, wherein the first signal comprises a skin surface microphone signal, a static equalization filter coupled to the first detector and configured to generate an equalized first signal, a voice activity detector coupled to the first detector, and a wind detector coupled to the second detector, the wind detector configured to correlate the second signal and the third signal and to derive from the correlation a plurality of wind metrics associated with a wind noise, the wind detector is further configured to determine a magnitude associated with the wind noise, to determine whether to suspend an activity of the system, and to determine a duration of time that the magnitude associated with the wind noise exceeds a threshold.

Abstract: Embodiments relate generally to electrical and electronic hardware, computer software, wired and wireless network communications, and media devices or wearable/mobile computing devices configured to facilitate presentation of content in a summarized form. More specifically, disclosed are systems, devices and methods to encapsulate or summarize a pool of content, such as music or audio tracks, in digest form. In some embodiments, a method may include identifying a pool of content as a function of a subset of parameters, selecting a subset of content from the pool based on one or more of the parameters to compile data representing encapsulated content, and forming data representing a digest of the pool of content including the compiled encapsulated content. Further, the method may include presenting the data representing the digest of the pool of content.

Abstract: Embodiments relate generally to a wearable device implementing a touch-sensitive interface in a metal pod cover and/or bioimpedance sensing to determine physiological characteristics, such as heart rate. According to an embodiment, a wearable device and method includes determining a drive current signal magnitude for a bioimpedance signal to capture data representing a physiological-related component, and selecting the drive current signal magnitude as a function of an impedance of a tissue. Further, the method can include driving the bioimpedance signal to that are configured to convey the bioimpedance signal to the tissue. Also, the method can receive the sensor signal from the tissue, adjust a gain for an amplifier, and apply the gain to data representing the physiological-related component. The method can include generating an amplified signal to include a portion of the physiological-related signal component that includes data representing a physiological characteristic.

Abstract: Systems, apparatuses, devices, and methods for wireless communications. An antenna in which nulls or directions of reduced performance can be selectively introduced is provided, and the performance of a communication link to a wireless communication device is monitored. By correlating the selectively reduced sensitivity of the antenna with reductions in the communication link performance, the direction of the wireless communication device may be estimated. Embodiments of the present invention may be used in numerous applications, such as cell phones, PDA's, and laptops.

Abstract: A communication system including a host transceiver, one or many device transceivers, and a wireless or wired link, in which encoded digital audio data and optionally also other auxiliary data are transmitted and received between the host transceiver and one or many device transceivers. The wireless link can but need not be a Certified Wireless USB (“CWUSB”) link, which utilizes WiMedia Ultra-Wideband (“UWB”) radio technology. For certain embodiments, packets of encoded audio data are transmitted from a host to a device or multiple devices over the wireless link utilizing a variety of data packet transfer methods, with the host adapting its algorithms dynamically to provide the digital audio content over a changing wireless error rate environment. The host intelligently controls the method of data transmission, including data encoding format, synchronization, latency, and transmission rate, in response to data transfer error information it detects or receives from each individual device in the system.

Abstract: Techniques for component protective overmolding using protective external coatings include a device having a framework, an element coupled to the framework, a protective material selectively applied substantially over the element, a spacer on or adjacent to the element, a tubing covering the spacer and the element, the tubing and the spacer configured to relieve strain on the element when the framework is flexed, and one or more moldings formed substantially over a subset or all of the framework, the protective material and the element, at least one of the one or more moldings having a protective property.

Abstract: A system, apparatus, or method for enabling an application developer to access the events, data and functionality of a device, such as a mobile phone, without being limited by the API provided by the device manufacturer. In some embodiments, the present invention utilizes a transparent gateway as a proxy that is inserted into the device stack to enable an application developer to access features and functions of the device beyond those exposed by the manufacturer provided API. For example, the transparent gateway may be inserted into the wireless stack of a mobile phone, in between the Bluetooth stack and the device's API. The transparent gateway may be installed in the mobile phone via an over the air provisioning or another suitable method.

Abstract: A wireless conference call telephone system uses body-worn wired or wireless audio endpoints comprising microphones and, optionally, speakers. These audio-endpoints, which include headsets, pendants, and clip-on microphones to name a few, are used to capture the user's voice and the resulting data may be used to remove echo and environmental acoustic noise. Each audio-endpoint transmits its audio to the telephony gateway, where noise and echo suppression can take place if not already performed on the audio-endpoint, and where each audio-endpoint's output can be labeled, integrated with the output of other audio-endpoints, and transmitted over one or more telephony channels of a telephone network. The noise and echo suppression can also be done on the audio-endpoint. The labeling of each user's output can be used by the outside caller's phone to spatially locate each user in space, increasing intelligibility.

Abstract: Embodiments relate generally to wearable computing devices in capturing and deriving physiological characteristic data. More specifically, disclosed are one or more electrodes and methods to determine physiological characteristics using a wearable device (or carried device) and one or more sensors. In one embodiment, a method includes determining a drive signal magnitude for a bioimpedance signal to capture data representing a physiological-related component and selecting the drive signal magnitude as a function of an impedance of a tissue. The bioimpedance signal can be applied to electrodes that are configured to convey the bioimpedance signal to the tissue. In some cases, data representing a value a signal-to-noise (“SNR”) ratio may be adapted to form an adaptive signal-to-noise value. A portion of a received bioimpedance signal may be detected, the received bioimpedance signal being based on the adaptive signal-to-noise value. A physiological characteristic can be derived.