Abstract: A warhead comprises an outer shell of explosive surrounding an inner core of fragmentation material.

Abstract: Aspects of the subject technology provide electronic devices that operate, in part, based on enrolled user characteristics, and that can be operated by a guest user that has not been enrolled. For example, upon determining that a current user of an electronic device storing a first physical model of a primary user is a guest user different from the primary user, the electronic device may obtain initial physical characteristic data for the guest user and generate a guest physical model of the guest user based on the initial physical characteristic data. In one or more implementations, the electronic device may operate based on guest user inputs and the guest physical model of the guest user, while updating the guest physical model based on the guest user inputs.

Abstract: Techniques are disclosed for operating a time-of-flight (TOF) sensor. The TOF may be operated in a low power mode by repeatedly performing a low power mode sequence, which may include performing a depth frame by emitting light pulses, detecting reflected light pulses, and computing a depth map based on the detected reflected light pulses. Performing the low power mode sequence may also include performing an amplitude frame at least one time by emitting a light pulse, detecting a reflected light pulse, and computing an amplitude map based on the detected reflected light pulse. In response to determining that an activation condition is satisfied, the TOF may be switched to operate in a high accuracy mode by repeatedly performing a high accuracy mode sequence, which may include performing the depth frame multiple times.

Abstract: An electronic device operates using first registration data while a first user is using the device and operates using second registration data while a second user is using the device. The owner of the electronic device can permit the electronic device to receive second registration data from an electronic device that is associated with the second user.

Abstract: A plurality of devices in a system discover one another and a first electronic device selects a second electronic device from amongst a plurality of devices to coordinate file storage. In some embodiments, the first electronic device and the second electronic device perform an authentication handshake. After performing the authentication handshake, the first electronic device transmits first data to the second electronic device. In some embodiments, the second electronic device operates using a temporary file system that includes the first data. In accordance with a determination that one or more criteria are satisfied, the second electronic device ceases operating using the temporary file system and deletes at least a portion of the temporary file system and/or first data.

Abstract: A display system can include a head-mounted display configured to project light to an eye of a user to display virtual image content at different amounts of divergence and collimation. The display system can include an inward-facing imaging system possibly comprising a plurality of cameras that image the user's eye and glints for thereon and processing electronics that are in communication with the inward-facing imaging system and that are configured to obtain an estimate of a center of rotation of the user's eye using cornea data derived from the glint images. The display system may render virtual image content with a render camera positioned at the determined position of the center of rotation of said eye.

Abstract: A first user of an electronic device operates the electronic device in a first mode with access to a plurality of features. The first user optionally configures the electronic device to provide permission for another user to use the electronic device in a second mode with access to a subset of the plurality of features. The first user optionally uses another electronic device to update the permissions to use the electronic device in the second mode while another user is using the electronic device.

Abstract: A LIDAR system that includes optics configured to (a) transmit, using a scanner, a transmitted signal, and (b) receive, using the scanner, reflections from objects, during a scan segment time window that corresponds to a scan segment of a field of view (FOV) of the LIDAR system; a sensing unit that includes multiple sensing elements; and a controller that is arranged to (a) activate the multiple sensing elements before starting to receive the reflections, and (b) selectively deactivate at least some of the multiple sensing elements, based on a scan direction of the scan segment, thereby reducing a number of active sensing elements during the scan segment time window.

Abstract: A propellant mechanism for launching a projectile comprises a propellant with a detonation point at which said propellant is initially detonated which is at one end in a forward direction closest to said projectile, such that the detonation proceeds through the propellant in a backwards direction away from the projectile. A reflecting surface is provided away from said projectile for reflecting the detonation into the forward direction towards the projectile.

Abstract: Device for interception of incoming ordnance, comprises a dispersion unit to disperse an explosive cloud in an expected path of the incoming ordnance, a proximity detector to detect proximity of the incoming ordnance in relation to the explosive cloud; and an ignition unit associated with said proximity detector that ignites the explosive cloud to disrupt the incoming ordnance.

Abstract: Techniques are disclosed for operating a time-of-flight (TOF) sensor. The TOF may be operated in a low power mode by repeatedly performing a low power mode sequence, which may include performing a depth frame by emitting light pulses, detecting reflected light pulses, and computing a depth map based on the detected reflected light pulses. Performing the low power mode sequence may also include performing an amplitude frame at least one time by emitting a light pulse, detecting a reflected light pulse, and computing an amplitude map based on the detected reflected light pulse. In response to determining that an activation condition is satisfied, the TOF may be switched to operate in a high accuracy mode by repeatedly performing a high accuracy mode sequence, which may include performing the depth frame multiple times.

Abstract: Methods for obtaining indigo dyed yarns with controlled ring dyeing are provided. Systems and devices for yarn indigo dyeing resulting in dyed yarns with homogenous color intensity are also provided.

Abstract: An electronic device associated with a respective user account presents content from another electronic device associated with a different user account. In some embodiments, a first electronic device associated with the user account of a first user establishes a connection with a second electronic device associated with the user account of a second user. Using this connection, the first electronic device and second electronic device exchange authentication keys, including authentication keys of the first electronic device, the second electronic device, and a third electronic device also associated with the user account of the second user. In some embodiments, in response to detecting an advertisement of the authentication key of the third electronic device broadcast by the third electronic device, the first electronic device initiates a process to present content received from the third electronic device.

Abstract: It is well understood in the medical industry that medical disorders can manifest as serious problems for the affected subjects, their families, and society. Today, psychiatrists, neurologists and other physicians treat these disorders with a variety of medications, many of which have significant negative side effects. The teachings provided herein are directed to a novel system and methods for treating certain neurological, psychological, psychiatric and medical disorders by delivering a “magnetic stimulation” to a subject's neural and perineural system using either a static or electromagnetic field to generate a modulated variable power multi-spectral magnetic stimulation on three axis; the modulated stimulation using methods that have predictable, controlled, modifiable, and repeatable characteristics.

Abstract: A first user of an electronic device operates the electronic device in a first mode with access to a plurality of features. The first user optionally configures the electronic device to provide permission for another user to use the electronic device in a second mode with access to a subset of the plurality of features.

Abstract: Disclosed herein are methods and systems for scanning an environment using a LIDAR system comprising one or more light sources configured to emit light, one or more rotatable light deflectors having a plurality of reflective facets to direct light emitted by the light source(s) to scan a Field of View (FOV) of the LIDAR system, and one or more optical switches having at least two states. The optical switch(es) interposed between the light source(s) and the rotatable light deflector(s) is configured to switch between the at least two states such that, in a first state, the one or more optical switches direct the emitted light towards the FOV via a first reflective facet of the plurality of reflective facets, and in a second state, the one or more optical switches direct the emitted light towards the FOV via a second reflective facet of the plurality of reflective facets.

Abstract: A display system can include a head-mounted display configured to project light to an eye of a user to display virtual image content at different amounts of divergence and collimation. The display system can include an inward-facing imaging system possibly comprising a plurality of cameras that image the user's eye and glints for thereon and processing electronics that are in communication with the inward-facing imaging system and that are configured to obtain an estimate of a center of rotation of the user's eye using cornea data derived from the glint images. The display system may render virtual image content with a render camera positioned at the determined position of the center of rotation of said eye.

Abstract: A first user of an electronic device operates the electronic device in a first mode with access to a plurality of features. The first user optionally configures the electronic device to provide permission for another user to use the electronic device in a second mode with access to a subset of the plurality of features. The first user optionally uses another electronic device to update the permissions to use the electronic device in the second mode while another user is using the electronic device.

Abstract: Device for interception of incoming ordnance, comprises a dispersion unit to disperse an explosive cloud in an expected path of the incoming ordnance, a proximity detector to detect proximity of the incoming ordnance in relation to the explosive cloud; and an ignition unit associated with said proximity detector that ignites the explosive cloud to disrupt the incoming ordnance.

Abstract: Systems and methods including a framework for migration of live data. The method may comprised, by one or more hardware processors executing program instructions, receiving, at a migration proxy of the framework, code for reading data and writing data compatible with each of a plurality of states of a migration of data in a data store, wherein a service is at least intermittently reading data from and writing data to the data store; determining, by a migration runner of the framework, to perform the migration of the data; initiating, by the migration runner, the migration of the data, wherein the migration comprises a plurality of stages; storing, as the migration progresses through the plurality of stages, and at a migration data store of the framework, a current stage of the migration; and during the migration, using the migration proxy to read data from and write data to the data store.