Rotation-tolerant devices and schemes for pedestrian-dead-reckoning (PDR) location determination
First Claim
1. A wireless communication device, comprising:
- a plurality of sensor elements configured to provide orientation parameter information, velocity and/or acceleration parameter information, and directional heading parameter information;
a camera mechanism configured to capture images at predetermined intervals of a user'"'"'s body as the user handles the wireless communication device;
orientation logic configured to determine orientation change information relative to the user'"'"'s body attributable to the user'"'"'s handling, based on the captured images of the user'"'"'s body, and provide orientation correction information; and
location estimation logic configured to provide current location information based on previous location information, the velocity and/or acceleration parameter information, the directional heading parameter information and/or the orientation parameter information, and the orientation correction information.
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Accused Products
Abstract
Devices, systems, and methods are directed to the determination of current location information of a wireless communication device. Such devices, systems, and methods include a plurality of sensor elements configured to provide orientation parameter information, velocity and/or acceleration parameter information, and directional heading parameter information; a camera mechanism configured to capture images at predetermined intervals of a user'"'"'s body as the user handles the wireless communication device; orientation logic configured to determine orientation change information attributable to the user'"'"'s handling, based on the captured images, and provide orientation correction information; and location estimation logic configured to provide current location information based on previous location information, the velocity and/or acceleration parameter information, the directional heading parameter information and/or the orientation parameter information, and the orientation correction information.
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Citations
20 Claims
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1. A wireless communication device, comprising:
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a plurality of sensor elements configured to provide orientation parameter information, velocity and/or acceleration parameter information, and directional heading parameter information; a camera mechanism configured to capture images at predetermined intervals of a user'"'"'s body as the user handles the wireless communication device; orientation logic configured to determine orientation change information relative to the user'"'"'s body attributable to the user'"'"'s handling, based on the captured images of the user'"'"'s body, and provide orientation correction information; and location estimation logic configured to provide current location information based on previous location information, the velocity and/or acceleration parameter information, the directional heading parameter information and/or the orientation parameter information, and the orientation correction information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of determining current location information in a wireless device, comprising:
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determining, via sensor elements, orientation parameter information, velocity and/or acceleration parameter information, and directional heading parameter information; capturing images at predetermined intervals of a user'"'"'s body as the user handles the wireless communication device; determining orientation change information relative to the user'"'"'s body attributable to the user'"'"'s handling, based on the captured images of the user'"'"'s body; providing orientation correction information based on the orientation change information; and providing the current location information based on previous location information, the velocity and/or acceleration parameter information, the directional heading parameter information and/or the orientation parameter information, and the orientation correction information. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification