Position validation
First Claim
1. A method of determining an indication of the position of an electronic device, the method comprising:
- obtaining (100) information relating to a radio signal received by the device, the radio signal comprising transmissions from one or more satellites of a satellite-positioning system, from which information an inference can be made about the true position of the device at the time the signal was received;
obtaining (110) a plurality of different hypotheses about the true position of the device, wherein each hypothesis comprises at least one of;
a position in two or more spatial dimensions;
a set of positions; and
a range of positions;
evaluating (120, 130, 140) the plurality of hypotheses, comprising assessing a degree of consistency between the information relating to the radio signal and the hypotheses;
based on the outcome of the evaluations, selecting (150) one or more of the hypotheses; and
outputting (160) an indication of the selected one or more hypotheses.
1 Assignment
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Accused Products
Abstract
A method of determining an indication of the position of an electronic device. The method includes: obtaining (100) information relating to a radio signal received by the device. The received radio signal are transmissions from one or more satellites of a satellite-positioning system from which information an inference can be made about the true position of the device at the time the signal was received. The method also involves obtaining (110) a plurality of hypotheses about the true position of the device; and evaluating (120, 130, 140) the plurality of hypotheses by assessing a degree of consistency between the information relating to the radio signal and the hypotheses. Using the outcome of the evaluations, the method also includes selecting (150) one or more of the hypotheses; and outputting (160) an indication of the selected one or more hypotheses.
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Citations
13 Claims
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1. A method of determining an indication of the position of an electronic device, the method comprising:
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obtaining (100) information relating to a radio signal received by the device, the radio signal comprising transmissions from one or more satellites of a satellite-positioning system, from which information an inference can be made about the true position of the device at the time the signal was received; obtaining (110) a plurality of different hypotheses about the true position of the device, wherein each hypothesis comprises at least one of; a position in two or more spatial dimensions; a set of positions; and
a range of positions;evaluating (120, 130, 140) the plurality of hypotheses, comprising assessing a degree of consistency between the information relating to the radio signal and the hypotheses; based on the outcome of the evaluations, selecting (150) one or more of the hypotheses; and outputting (160) an indication of the selected one or more hypotheses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A non-transitory computer readable medium for storing a computer program for determining an indication of the position of an electronic device, wherein the program is adapted to perform the following steps when said program is run on a computer:
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obtaining (100) information relating to a radio signal received by the device, the radio signal comprising transmissions from one or more satellites of a satellite-positioning system, from which information an inference can be made about the true position of the device at the time the signal was received; obtaining (110) a plurality of different hypotheses about the true position of the device, wherein each hypothesis comprises at least one of; a position in two or more spatial dimensions; a set of positions; and
a range of positions;evaluating (120, 130, 140) the plurality of hypotheses, comprising assessing a degree of consistency between the information relating to the radio signal and the hypotheses; based on the outcome of the evaluations, selecting (150) one or more of the hypotheses; and outputting (160) an indication of the selected one or more hypotheses.
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13. Apparatus for determining an indication of the position of an electronic device, the apparatus comprising:
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a satellite positioning receiver (10, 12, 18), operable to receive a radio signal, the radio signal comprising transmissions from one or more satellites of a satellite positioning system; an input (26), for obtaining a plurality of different hypotheses about the true position of the device, each hypothesis comprising at least one of; a position in two or more spatial dimensions;
a set of positions; and
a range of positions; anda processor (20), adapted to; evaluate the plurality of hypotheses, comprising assessing a degree of consistency between the received radio signal and the hypotheses; based on the outcome of the evaluations, select one or more of the hypotheses; and output an indication of the selected one or more hypotheses.
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Specification