Abstract:
Aspects of the present disclosure relate to protecting the contents of memory in an electronic device, and in particular to systems and methods for transferring data between memories of an electronic device in the presence of strong magnetic fields. In one embodiment, a method of protecting data in a memory in an electronic device includes storing data in a first memory in the electronic device; determining, via a magnetic sensor, a strength of an ambient magnetic field; comparing the strength of the ambient magnetic field to a threshold; transferring the data in the first memory to a second memory in the electronic device upon determining that the strength of the ambient magnetic field exceeds the threshold; and transferring the data from the second memory to the first memory upon determining that the strength of the ambient magnetic field no longer exceeds the threshold.
Abstract:
The disclosure generally relates to a memory power reduction scheme that can flexibly transition memory blocks among different power states to reduce power consumption (especially with respect to leakage power) in a manner that balances tradeoffs between reduced power consumption and performance impacts. For example, according to various aspects, individual memory blocks may be associated with an access-dependent age, whereby memory blocks that are not accessed may be periodically aged. As such, in response to the age associated with a memory block crossing an appropriate threshold, the memory block may be transitioned to a power state that generally consumes less leakage power and has a larger performance penalty. Furthermore, one or more performance-related criteria may be defined with certain memory blocks to prevent and/or automatically trigger a transition to another power state.
Abstract:
Techniques for securing transactions on a mobile device are provided. An example method according to these techniques includes receiving an input of a code to authorize a transaction in a security sensitive application, authenticating the transaction responsive to the input of the code, monitoring sensor information indicative of a context change, and authorizing subsequent transactions responsive to the sensor information indicating that the context change has not occurred since receiving the input of the code.
Abstract:
A biomedical system includes: a medical implant capsule including an outer body, an electric device retained by the outer body, and a power input coupled to the electric device, the medical implant capsule having a length, along an axis, and a width transverse to the axis; and an antenna coupled to the power input and configured to: receive power wirelessly and to deliver the power to the power input; wrap around the medical implant capsule, in a transit state, transverse to the length of the medical implant capsule for a distance greater than the width of the medical implant capsule; and expand to a deployed state, at least part of the antenna being further from the axis in the deployed state than in the transit state.
Abstract:
A hardware based motor controller may be used to generate chopped signals. The hardware based motor controller may decrease CPU bandwidth needed to perform functions related to motor control. In an aspect of the disclosure, a method and an apparatus are provided. The apparatus may be a motor controller for controlling a brushless motor. The motor controller may include a first carrier generator component for providing a first carrier. The motor controller may also include a first pulse generator component for providing a first pulse at a duty cycle. The first pulse generator component may be coupled to the first carrier generator component. Additionally, the first pulse generator may be configured to combine the first pulse with the first carrier to generate a first output pulse. Additionally, the first pulse generator may also be configured to output the first output pulse to drive a first leg of the brushless motor.
Abstract:
A medical system is provided. The medical system includes a guidewire configured to guide a catheter to a target location within a body, the guidewire including a sensor configured to collect sensor data indicative of a location within the body, and an electrical conductor configured to conduct electrical signals representing the sensor data. The medical system further includes a wireless transmitter and a first antenna electrically coupled with the sensor via the electrical conductor and configured to: receive the electrical signals representing the sensor data; generate, from the electrical signals, first wireless signals representing the sensor data; and transmit, via the first antenna, first wireless signals.
Abstract:
Various embodiments provide systems and methods among wireless earpieces in a wireless communication network that enable balancing the batteries in the wireless earpieces to be depleted at approximately the same rate. Various embodiments intelligently and dynamically swap master/slave roles among two or more Bluetooth® wireless earpieces coupled to a data source device to optimize battery life in both wireless earpieces. The various embodiments provide methods and systems for swapping master-slave roles so that there is less impact on the user experience.
Abstract:
A power management system for stack memory thread tasks according to some examples of the disclosure may include a non-collapsible memory region, a collapsible memory region configured below the non-collapsible memory region, a memory management unit in communication with the non-collapsible memory region and the collapsible memory region, the memory management unit operable to allocate a portion of the non-collapsible memory region and a portion of the collapsible memory region to a thread task upon initialization of the thread task and power down the portion of the collapsible memory region allocated to the thread task upon receiving a power down command.
Abstract:
The various aspects provide for wirelessly connecting mobile devices and wearable devices, which may enhance battery life and user experience. The embodiments may include a wearable device that may receive from a mobile device a request to wirelessly connect to the wearable device. The wearable device may establish with the mobile device a first wireless connection. The wearable device may recognize termination of the first wireless connection by the mobile device and send to the mobile device a second request to establish a second wireless connection. The wearable device may establish the second wireless connection between the mobile device and the wearable device.