Abstract: A wearable device such as an augmented reality (AR)/virtual reality (VR) near-eye display device employs wireless communication technology to facilitate “walkie-talkie” style line-of-sight (LoS) communication between two users or one user and a group of users (unidirectional or bidirectional broadcast mode). The wireless communication may be facilitated by an ultra-wide band (UWB) or comparable wireless communication sub-system. The system may detect another user(s) within range of communication and within a predefined angle-of-arrival (AoA). The communication may be initiated by the user through an input allowing the user to communicate with the other user(s) discretely through audio and/or video modes. In a “walkie talkie selfie” mode, two or more users may capture images of each other, and the images may be superimposed generating a “selfie” of the entire group.

Abstract: A wearable device includes an analog-to-digital converter (ADC) configured to digitize biopotential signals received from biopotential-signal-sensing channels. The wearable device also includes a supplementary processor that samples the digital biopotential signals from the ADC. The supplementary processor sends the digital biopotential signals to a buffer until a determination is made that a particular number of the digital biopotential signals is stored in the buffer. Additionally, the supplementary processor transmits an indication to a primary processor that the particular number of the digital biopotential signals is stored in the buffer. In addition to the ADC and the supplementary processor, the wearable device includes the aforementioned primary processor.

Abstract: An electronic device includes a plurality of sensor-amplifier-filter (SAF) assemblies. Each SAF assembly includes a neuromuscular-signal sensor configured to detect a neuromuscular signal, a stage-one amplifier configured to amplify the neuromuscular signal into a stage-one signal, and a passive filter configured to filter the stage-one signal into a filtered signal. The electronic device includes a multiplexer configured to receive a plurality of filtered signals from the plurality of SAF assemblies, output a first filtered signal of the plurality of received filtered signals as a multiplexed signal while a select signal has a first value, and output a second filtered signal of the plurality of received filtered signals as the multiplexed signal while the select signal has a second value. A stage-two amplifier is configured to amplify the multiplexed signal into a stage-two signal. The electronic device includes an analog-to-digital converter configured to convert the stage-two signal into a digital signal.

Abstract: Systems and methods are described for using such signals detected by neuromuscular-signal sensors of a wearable electronic device when a user is performing an activity. Methods are described for adaptively adjusting a rate of physical activity performed by a user while the user is wearing the wearable electronic device. An example method includes operations for using one or more sensors located at a wearable electronic device in conjunction with detecting that the user is performing a physical activity at a particular activity rate: (i) detecting, using a neuromuscular-signal sensor located at the wearable electronic device, a level of exertion of the user, and (ii) based on a determination that the level of exertion is different than a baseline level of exertion by at least a threshold amount, determining an adjustment to the particular activity rate while the user is performing the physical activity.

Abstract: The various implementations described herein include methods and systems for providing a force dimension to interface elements. In one aspect, a method includes (i) communicatively coupling a wearable device that includes electromyography (EMG) sensors with an activatable device that includes a mechanical user interface element; (ii) in accordance with an activation of the user interface element, obtaining data from the EMG sensors that corresponds to the activation; (iii) determining, based on the data from the EMG sensors, whether the activation includes an activation force that meets predefined criteria; (iv) in accordance with a determination that the activation force meets the predefined criteria, causing execution of a first function corresponding to the user interface element; and (v) in accordance with a determination that the activation force meets the predefined criteria, causing execution of a second function corresponding to the user interface element.

Abstract: The various implementations described herein include methods and systems for power-efficient processing of neuromuscular signals. In one aspect, a method includes: (i) obtaining a first set of neuromuscular signals; (ii) after determining, using a low-power detector, that the first set of neuromuscular signals require further processing to confirm that a predetermined in-air hand gesture has been performed: (a) processing the first set of neuromuscular signals using a high-power detector; and (b) in accordance with a determination that the processing indicates that the predetermined in-air hand gesture did occur, registering an occurrence of the predetermined in-air hand gesture; (iii) receiving a second set of neuromuscular signals; and (iv) after determining, using the low-power detector and not using the high-power detector, that a different predetermined in-air hand gesture was performed, performing an action in response to the different predetermined in-air hand gesture.

Abstract: An example method for securing a wearable device to a user occurs while the wearable device is worn around a body part. The wearable device includes a biopotential-signal sensor connected to an amplifier to adjust amplification of biopotential signal. The method includes receiving first information representative of power needed to amplify the biopotential signal to the particular amplitude for signal processing. The method also includes, in accordance with a determination that the first information indicates that the wearable device is not properly affixed to the body part, providing first instructions to adjust how the wearable device is affixed to the body part. The method includes receiving second information, and, in accordance with a determination that the second information indicates that the wearable device is properly affixed to the body part, forgoing providing second instructions to adjust how the wearable device is affixed to the body part.

Abstract: Systems and methods for transitioning a call between two devices are disclosed herein. An origin device for the call is determined based on a first position of an ultra-wideband (UWB) device. A destination device for the call is then determined based on a second position of the UWB device. The UWB device sends transition commands to both the origin device and the destination device, each transition command including an identifier of the other device. Using the identifier of the origin device, the destination device connects to the call the origin device is currently participating in. When the origin device detects that the destination device has connected to the call, the origin device disconnects from the call.

Abstract: Systems and methods for controlling a smart streaming device are disclosed herein. The smart streaming device is controlled based on a position of an ultra-wideband (UWB) device. Based on the position of the UWB device, one or more service events for the smart streaming device can be conducted. For example, a privacy mode of the smart streaming device can be enabled or disabled based on the position of the UWB device. In another example, a distance can be determined between the smart streaming device and the position of the UWB device. Based on the distance, an output configuration of the smart streaming device can be set, such as dynamically adjusting volume or text size on the smart streaming device.

Abstract: Systems and methods for transitioning a call between two devices are disclosed herein. An origin device for the call is determined based on a first position of an ultra-wideband (UWB) device. A destination device for the call is then determined based on a second position of the UWB device. The UWB device sends transition commands to both the origin device and the destination device, each transition command including an identifier of the other device. Using the identifier of the origin device, the destination device connects to the call the origin device is currently participating in. When the origin device detects that the destination device has connected to the call, the origin device disconnects from the call.

Abstract: Systems and methods for controlling a smart streaming device are disclosed herein. The smart streaming device is controlled based on a position of an ultra-wideband (UWB) device. Based on the position of the UWB device, one or more service events for the smart streaming device can be conducted. For example, a privacy mode of the smart streaming device can be enabled or disabled based on the position of the UWB device. In another example, a distance can be determined between the smart streaming device and the position of the UWB device. Based on the distance, an output configuration of the smart streaming device can be set, such as dynamically adjusting volume or text size on the smart streaming device.

Abstract: Systems and methods for transitioning a call between two devices are disclosed herein. An origin device for the call is determined based on a first position of an ultra-wideband (UWB) device. A destination device for the call is then determined based on a second position of the UWB device. The UWB device sends transition commands to both the origin device and the destination device, each transition command including an identifier of the other device. Using the identifier of the origin device, the destination device connects to the call the origin device is currently participating in. When the origin device detects that the destination device has connected to the call, the origin device disconnects from the call.