Indoor/Outdoor Differentiation Using Radio Frequency (RF) Transmitters
AssigneeBroadcom Corporation
InventorsRichard FULLER, Steven MALKOS
Life of this patent
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Abstract
An apparatus and method is provided for indoor/outdoor transition detection of devices to improve selection of the navigation algorithms. A mobile device can scan resources such as radio frequency (RF) sources in its vicinity and compare the scanned resources with a set of indoor-only resources to determine whether the mobile device is located inside a structure (e.g., indoor) or outside the structure (e.g., outdoor). The techniques provide an apparatus and method to determine when a device transitions between indoor and outdoor to efficiently use appropriate algorithm for positioning and/or navigation.
Claims21
A method, comprising:
- receiving, by a mobile device, radio frequency (RF) signals from a plurality of RF sources, wherein, at least one of the plurality of RF sources is located inside a structure;
- determining information associated with the plurality of RF sources;
- comparing the determined information with a priori information associated with a set of indoor-only RF sources;
- and
- determining whether the plurality of RF sources include at least one of the set of indoor-only RF sources.
(canceled)
An apparatus, comprising:
- a radio receiver configured to receive radio frequency (RF) signals from a plurality of RF sources, wherein at least one of the plurality of RF sources is located inside a structure;
- and
- a control logic configured to:
- determine information associated with the plurality of RF sources;
- compare the determined information with a priori information associated with a set of indoor-only RF sources;
- and
- determine whether the plurality of RF sources include at least one of the set of indoor-only RF sources.
(canceled)
An article of manufacture including a non-transitory computer-readable storage medium having instructions stored thereon, execution of which by a computing device causes the computing device to perform operations comprising:
- receiving, by a mobile device, radio frequency (RF) signals from a plurality of RF sources, wherein at least one of the plurality of RF sources is located inside a structure;
- determining information associated with the plurality of RF sources;
- comparing the determined information with a priori information associated with a set of indoor-only RF sources;
- and
- determining whether the plurality of RF sources include at least one of the set of indoor-only RF sources.
(canceled)
Dependencies are inferred from the claim text.