Mobile device position uncertainty based on a measure of potential hindrance of an estimated trajectory
First Claim
1. A method comprising, at a mobile device:
- estimating a trajectory of said mobile device within a particular environment comprising an indoor region, said trajectory extending from a first position towards a second position;
determining a measure of potential hindrance for at least a portion of said trajectory based, at least in part, on an electronic map that is indicative of a presence or an absence of one or more obstacles within at least said portion of said trajectory; and
presenting an indication of a position uncertainty to a user of said mobile device, said position uncertainty being based, at least in part, on said measure of potential hindrance, wherein said indication of said position uncertainty indicates an increased position uncertainty responsive to a higher measure of potential hindrance for said at least a portion of said trajectory and said indication of said position uncertainty indicates a decreased position uncertainty responsive to a lower measure of potential hindrance.
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Accused Products
Abstract
Various techniques are provided for identifying a position uncertainty of a mobile device, such as, based, at least in part, on a measure of potential hindrance of an estimated trajectory. For example, an example method may comprise estimating a trajectory of the mobile device within a particular environment, determining a measure of potential hindrance for at least a portion of the trajectory based, at least in part, on an electronic map that is indicative of a presence or an absence of one or more obstacles, and presenting an indication of a position uncertainty to a user of the mobile device. The position uncertainty may be based, at least in part, on the measure of potential hindrance.
65 Citations
29 Claims
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1. A method comprising, at a mobile device:
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estimating a trajectory of said mobile device within a particular environment comprising an indoor region, said trajectory extending from a first position towards a second position; determining a measure of potential hindrance for at least a portion of said trajectory based, at least in part, on an electronic map that is indicative of a presence or an absence of one or more obstacles within at least said portion of said trajectory; and presenting an indication of a position uncertainty to a user of said mobile device, said position uncertainty being based, at least in part, on said measure of potential hindrance, wherein said indication of said position uncertainty indicates an increased position uncertainty responsive to a higher measure of potential hindrance for said at least a portion of said trajectory and said indication of said position uncertainty indicates a decreased position uncertainty responsive to a lower measure of potential hindrance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A mobile device comprising:
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a user interface mechanism; and a processing unit coupled to said user interface mechanism and configured to; estimate a trajectory of said mobile device within a particular environment comprising an indoor region, said trajectory extending from a first position towards a second position; determine a measure of potential hindrance for at least a portion of said trajectory based, at least in part, on an electronic map that is indicative of a presence or an absence of one or more obstacles within at least said portion of said trajectory; and initiate presentation of an indication of a position uncertainty via said user interface mechanism, said position uncertainty being based, at least in part, on said measure of potential hindrance, wherein said indication of said position uncertainty indicates an increased position uncertainty responsive to a higher measure of potential hindrance for said at least a portion of said trajectory and said indication of said position uncertainty indicates a decreased position uncertainty responsive to a lower measure of potential hindrance. - View Dependent Claims (13, 14, 15, 16, 17)
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18. An apparatus for use in a mobile device, the apparatus comprising:
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means for estimating a trajectory of said mobile device within a particular environment comprising an indoor region, said trajectory extending from a first position towards a second position; means for determining a measure of potential hindrance for at least a portion of said trajectory based, at least in part, on an electronic map that is indicative of a presence or an absence of one or more obstacles within at least said portion of said trajectory; and means for presenting an indication of a position uncertainty, said position uncertainty being based, at least in part, on said measure of potential hindrance, wherein said indication of said position uncertainty indicates an increased position uncertainty responsive to a higher measure of potential hindrance for said at least a portion of said trajectory and said indication of said position uncertainty indicates a decreased position uncertainty responsive to a lower measure of potential hindrance. - View Dependent Claims (19, 20, 21, 22, 23)
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24. An article comprising:
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a non-transitory computer readable medium have stored therein computer implementable instructions executable by a processing unit of a mobile device to; estimate a trajectory of said mobile device within a particular environment comprising an indoor region, said trajectory extending from a first position towards a second position; determine a measure of potential hindrance for at least a portion of said trajectory based, at least in part, on an electronic map that is indicative of a presence or an absence of one or more obstacles within at least said portion of said trajectory; and initiate presentation of an indication of a position uncertainty, said position uncertainty being based, at least in part, on said measure of potential hindrance, wherein said indication of said position uncertainty indicates an increased position uncertainty responsive to a higher measure of potential hindrance for said at least a portion of said trajectory and said indication of said position uncertainty indicates a decreased position uncertainty responsive to a lower measure of potential hindrance. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification