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US 2014/0195157 A1Published application
Applying an indication of a likelihood of a directional transition at a junction in an encoded routability graph description to a positioning function of a mobile device
AssigneeQUALCOMM Incorporated
InventorRajarshi Gupta
Life of this patent
Estimating the term…
Abstract
Techniques are provided for a mobile, which may be implemented in various methods, apparatuses, and/or articles of manufacture to obtain an encoded routability graph representative of feasible paths for an indoor environment, along with values indicative of likelihoods of transition at certain junctions identifiable in the encoded routability graph, and determine one or both of an estimated position or an estimated direction of travel of the mobile device.
Claims20
A method comprising, at a mobile device:
- receiving one or more data files comprising:
- an encoded routability graph corresponding to an indoor environment represented by an encoded map, said encoded routability graph being indicative of a plurality of feasible paths within said indoor environment, said plurality of feasible paths being indicated, at least in part, by junctions selectively interconnected by edges, and
- a plurality of values indicative of likelihoods of transition for at least one of said junctions, said at least one of said junctions being connected to three or more of said edges, wherein said likelihoods of transition are based, at least in part, on one or more features of said encoded map, one or more predetermined possible origination paths in said encoded routability graph leading to said at least one of said junctions via one of said three or more of said edges, and one or more predetermined possible destination paths that lead away from said at least one of said junctions via at least two of said three or more of said edges;
- and
- determining at least one of an estimated position of said mobile device, or an estimated direction of travel of said mobile device based, at least in part, on at least one of said plurality of values indicative of likelihoods of transition and said encoded routability graph.
2 more elements
An apparatus for use in a mobile device, the apparatus comprising:
- means for receiving one or more data files comprising:
- an encoded routability graph corresponding to an indoor environment represented by an encoded map, said encoded routability graph being indicative of a plurality of feasible paths within said indoor environment, said plurality of feasible paths being indicated, at least in part, by junctions selectively interconnected by edges, and
- a plurality of values indicative of likelihoods of transition for at least one of said junctions, said at least one of said junctions being connected to three or more of said edges, wherein said likelihoods of transition are based, at least in part, on one or more features of said encoded map, one or more predetermined possible origination paths in said encoded routability graph leading to said at least one of said junctions via one of said three or more of said edges, and one or more predetermined possible destination paths that lead away from said at least one of said junctions via at least two of said three or more of said edges;
- and
- means for determining at least one of an estimated position of said mobile device, or an estimated direction of travel of said mobile device based, at least in part, on at least one of said plurality of values indicative of likelihoods of transition and said encoded routability graph.
2 more elements
A mobile device comprising:
- a communication interface;
- and
- a processing unit to:
- receive one or more data files via said communication interface, said one or more data files comprising:
- an encoded routability graph corresponding to an indoor environment represented by an encoded map, said encoded routability graph being indicative of a plurality of feasible paths within said indoor environment, said plurality of feasible paths being indicated, at least in part, by junctions selectively interconnected by edges, and
- a plurality of values indicative of likelihoods of transition for at least one of said junctions, said at least one of said junctions being connected to three or more of said edges, wherein said likelihoods of transition are based, at least in part, on one or more features of said encoded map, one or more predetermined possible origination paths in said encoded routability graph leading to said at least one of said junctions via one of said three or more of said edges, and one or more predetermined possible destination paths that lead away from said at least one of said junctions via at least two of said three or more of said edges;
- and
- determine at least one of an estimated position of said mobile device, or an estimated direction of travel of said mobile device based, at least in part, on at least one of said plurality of values indicative of likelihoods of transition and said encoded routability graph.
5 more elements
An article for use in a mobile device, the article comprising:
- a non-transitory computer-readable medium having stored therein computer implementable instructions executable by a processing unit to:
- receive one or more data files, said one or more data files comprising:
- an encoded routability graph corresponding to an indoor environment represented by an encoded map, said encoded routability graph being indicative of a plurality of feasible paths within said indoor environment, said plurality of feasible paths being indicated, at least in part, by junctions selectively interconnected by edges, and
- a plurality of values indicative of likelihoods of transition for at least one of said junctions, said at least one of said junctions being connected to three or more of said edges, wherein said likelihoods of transition are based, at least in part, on one or more features of said encoded map, one or more predetermined possible origination paths in said encoded routability graph leading to said at least one of said junctions via one of said three or more of said edges, and one or more predetermined possible destination paths that lead away from said at least one of said junctions via at least two of said three or more of said edges;
- and
- determine at least one of an estimated position of said mobile device, or an estimated direction of travel of said mobile device based, at least in part, on at least one of said plurality of values indicative of likelihoods of transition and said encoded routability graph.
3 more elements
Dependencies are inferred from the claim text.