Abstract:
Techniques for compensating for inertial and/or magnetic interference in a mobile device are provided. The mobile device can include a vibration motor to vibrate the device, a processor, and can include an inertial sensor and/or a magnetometer. The processor can be configured to actuate the vibration motor to induce vibration of the mobile device, to measure motion of the mobile device with the inertial sensor of the device to produce sensor output data and/or to measure a magnetic field generated by the vibration motor to produce magnetometer output data, and to compensate for the vibration of the inertial sensor induced by the vibration motor to produce compensated sensor output data and/or to compensate for a magnetic field generated by the vibration motor when the vibration motor is actuated to produce compensated magnetometer output data.
Abstract:
The subject matter disclosed herein relates to a system and method for receiving a plurality of signals generated by a plurality of sensors adapted to detect physical movement of a mobile device with respect to a plurality of coordinate axes. A time at which at least one of the received signals is digitized is delayed to provide an output of digitized versions of the received plurality of signals synchronized with respect to a common point in time.
Abstract:
Techniques are provided which may be implemented within a mobile device for determining a likely motion state of the mobile device. In an example, a mobile device may obtain sets of measurement signals from an inertial sensor, determine corresponding measures of variation for each of the sets of measurement signals, determine flatness indications corresponding to sets of the measures of variation, determine a motion state threshold level based, at least in part, on one or more flatness indications; and determine a likely motion state of the mobile device based, at least in part, on the motion state threshold level and one or more of: (i) a subsequently determined measure of variation, and/or (ii) a subsequently determined flatness indication.
Abstract:
Embodiments implement a device having a sensor optimizer, where a source data stream from a sensor module may be used by the sensor optimizer to create multiple sensor data streams having different data stream parameters (e.g. data rate, calibration, scaling, etcetera) from the source data stream. Such a sensor optimizer may intercept requests for sensor data from applications running on a mobile device processor, and concurrently provide data streams having different data stream parameters to applications executed by the processor.
Abstract:
Techniques provided herein are directed toward resolving a direction of travel of a mobile device based on MEMS sensor data by identifying a type of motion the mobile device is subject to and offsetting vertical acceleration data with horizontal acceleration data by a predetermined time offset based on the identified type of motion. The offset vertical and horizontal acceleration data can then be used to resolve, with an increased accuracy, a direction of travel of the mobile device.
Abstract:
Embodiments implement a device having a sensor element, where different data streams created as part of a sensor module integrated with the sensor element may create multiple sensor data streams from a single sensor element, and may concurrently convey information from the sensor element to respective different applications having different data parameter requirements such that the data streams each match the parameter requirements of the different applications.
Abstract:
The disclosure generally relates to determining position of a motorized vehicle using wireless techniques. Methods, apparatus and systems are disclosed. A method can include: receiving absolute positioning data; receiving, from a mobile device, at least one of gyroscope data and odometry data; receiving, from a vehicle, at least one of gyroscope data and odometry data; initializing at least a heading to determine a relative path, wherein the relative path is based at least in part on the received data from the mobile device and the vehicle, wherein the received data comprises gyroscope data and odometry data; and shifting the relative path to an estimated path, wherein the estimated path is based at least in part on the absolute positioning data.
Abstract:
The disclosure is related to managing power consumption of a user equipment (UE) while providing location services. An aspect determines whether a given sensor configuration of a plurality of sensor configurations minimizes power consumption of the UE, wherein a sensor configuration comprises a set of values for a set of one or more sensor parameters controllable by the UE, and, based upon the determining, sets the set of one or more sensor parameters to the given sensor configuration.
Abstract:
The disclosure is directed to matching a time delay and a bandwidth of a plurality of sensors. An aspect receives first sensor data having a first timestamp from a first sensor having a first bandwidth, receives second sensor data having a second timestamp from a second sensor having a second bandwidth, and synchronizes the first sensor data and the second sensor data by performing one or more of compensating for a first time delay of the first sensor data, compensating for a second time delay of the second sensor data, compensating for a relative time delay between the first sensor data and the second sensor data, or matching the first bandwidth and the second bandwidth to a common bandwidth.
Abstract:
Techniques are provided which may be implemented using various methods and/or apparatuses in a mobile GNSS device to compensate for arm swing. An example of an method for compensating for arm swing according to the disclosure includes determining an arm swing signal, such that the arm swing signal is approximately sinusoidal with a period of approximately T seconds, determining a position signal measurement period, receiving a plurality of positioning signals at intervals corresponding to the position signal measurement period, and determining current position information based on the plurality of positioning signals.