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US 10,921,208 B2Granted
Systems and methods differential pressure sensing
AssigneeInvenSense, Inc.
InventorsJoe Youssef, Hemabh Shekhar, Karthik Katingari, William Kerry Keal, Mubbasher Mukhtar
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Abstract
A pressure sensor of a mobile device may be corrected by receiving reference pressure information from an associated device. The correction using differential pressure measurements may be influenced by one or more determined condition characteristics.
Claims18
A method for determining motion of a mobile device, the method comprising:
- obtaining sensor data from the mobile device comprising at least pressure sensor data;
- obtaining sensor data from at least one additional mobile device comprising at least pressure sensor data,
- defining the pressure sensor data from the at least one additional device as reference pressure information based at least in part on a condition characteristic, wherein the mobile device sends a request for the reference pressure information to the at least one additional device;
- and
- correcting pressure sensor data from the mobile device based at least in part on the reference pressure information, wherein a vertical motion of the mobile device is determined based at least in part on the corrected pressure sensor data.
2 more elements
A system for determining a motion of a mobile device comprising:
- a mobile device having a pressure sensor;
- at least one additional mobile device having a pressure sensor;
- and
- a correction module configured to:
- define pressure sensor data from the at least one additional mobile device as reference pressure information based at least in part on a condition characteristic, wherein the mobile device sends a request for the reference pressure information to the at least one additional device and receives the reference pressure information from the at least one additional mobile device in response;
- correct pressure sensor data from the mobile device based at least in part on the reference pressure information;
- and
- determine a vertical motion of the mobile device based at least in part on the corrected pressure sensor data.
5 more elements
Dependencies are inferred from the claim text.