Method and apparatus for accurate acquisition of inertial sensor data
AssigneeQUALCOMM Incorporated
InventorJoseph Czompo
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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.
Claims30
A method for acquiring inertial sensor data for a mobile device, the method comprising:
- 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;
- and
- delaying a time at which at least one of the received signals is digitized based on predefined processing delays associated with one or more of the plurality of sensors to provide an output of digitized versions of the received plurality of signals synchronized with respect to a common point in time.
A system for acquiring inertial sensor data for a mobile device, the system comprising:
- a plurality of sensors configured to detect physical movement of the mobile device with respect to a plurality of coordinate axes and to generate a plurality of signals corresponding to the physical movement;
- and
- one or more delay elements configured to delay a time at which at least one of the received signals is digitized based on predefined processing delays associated with one or more of the plurality of sensors to provide an output of digitized versions of the received plurality of signals synchronized with respect to a common point in time.
An apparatus for acquiring inertial sensor data for a mobile device, the apparatus comprising:
- means for receiving a plurality of signals generated by a plurality of sensors configured to detect physical movement of the mobile device with respect to a plurality of coordinate axes;
- and
- means for delaying a time at which at least one of the received signals is digitized based on predefined processing delays associated with one or more of the plurality of sensors to provide an output of digitized versions of the received plurality of signals synchronized with respect to a common point in time.
A non-transitory computer-readable storage medium comprising computer-readable instructions for acquiring inertial sensor data for a mobile device stored thereon which, when executed by a special purpose apparatus, are configured to direct the special purpose apparatus to:
- receive a plurality of signals generated by a plurality of sensors configured to detect physical movement of the mobile device with respect to a plurality of coordinate axes;
- and
- delay a time at which at least one of the received signals is digitized based on predefined processing delays associated with one or more of the plurality of sensors to provide an output of digitized versions of the received plurality of signals synchronized with respect to a common point in time.
Dependencies are inferred from the claim text.