Detecting radio signal emitter locations
First Claim
1. A method comprising:
- obtaining, from a sensing device at a first time, first information corresponding to a radio signal received at the sensing device from a candidate location, wherein the sensing device is at a first location in its movement trajectory at the first time;
obtaining, from the sensing device at a second time, second information corresponding to a radio signal received at the sensing device from the candidate location, wherein the sensing device is at a second location in its movement trajectory at the second time;
determining that a known pattern is present in each of the first information and the second information;
conditioned on determining that the known pattern is present in each of the first information and the second information;
determining a first relationship between the candidate location and the sensing device at the first location, and a second relationship between the candidate location and the sensing device at the second location;
obtaining a first inverse of the first relationship and a second inverse of the second relationship;
determining a first estimate of the radio signal received at the sensing device from the candidate location based on the first information and the first inverse, and a second estimate of the radio signal received at the sensing device from the candidate location based on the second information and the second inverse; and
determining an estimate of an energy emitted from the candidate location based on the first estimate and the second estimate.
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Accused Products
Abstract
First information is obtained from a sensing device at a first time. The first information corresponds to a radio signal received at the device from a candidate location. The device is at a first location at the first time. Second information is obtained from the device at a second time. The second information corresponds to a radio signal received at the device from the candidate location. The device is at a second location at the second time. A system determines that a pattern is in each of the first and second information and determines relationships between the candidate location and the device at each first and second location. The system obtains inverses of the relationships and determines estimates of the received radio signals based on the information and inverses. The system measures or estimates energy emitted from the candidate location based on the estimates.
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Citations
25 Claims
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1. A method comprising:
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obtaining, from a sensing device at a first time, first information corresponding to a radio signal received at the sensing device from a candidate location, wherein the sensing device is at a first location in its movement trajectory at the first time; obtaining, from the sensing device at a second time, second information corresponding to a radio signal received at the sensing device from the candidate location, wherein the sensing device is at a second location in its movement trajectory at the second time; determining that a known pattern is present in each of the first information and the second information; conditioned on determining that the known pattern is present in each of the first information and the second information; determining a first relationship between the candidate location and the sensing device at the first location, and a second relationship between the candidate location and the sensing device at the second location; obtaining a first inverse of the first relationship and a second inverse of the second relationship; determining a first estimate of the radio signal received at the sensing device from the candidate location based on the first information and the first inverse, and a second estimate of the radio signal received at the sensing device from the candidate location based on the second information and the second inverse; and determining an estimate of an energy emitted from the candidate location based on the first estimate and the second estimate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A system comprising:
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one or more processing devices; and one or more non-transitory machine-readable storage devices storing instructions that are executable by the one or more processing devices to cause performance of operations comprising; obtaining, from a sensing device at a first time, first information corresponding to a radio signal received at the sensing device from a candidate location, wherein the sensing device is at a first location in its movement trajectory at the first time; obtaining, from the sensing device at a second time, second information corresponding to a radio signal received at the sensing device from the candidate location, wherein the sensing device is at a second location in its movement trajectory at the second time; determining that a known pattern is present in each of the first information and the second information; conditioned on determining that the known pattern is present in each of the first information and the second information; determining a first relationship between the candidate location and the sensing device at the first location, and a second relationship between the candidate location and the sensing device at the second location; obtaining a first inverse of the first relationship and a second inverse of the second relationship; determining a first estimate of the radio signal received at the sensing device from the candidate location based on the first information and the first inverse, and a second estimate of the radio signal received at the sensing device from the candidate location based on the second information and the second inverse; and determining an estimate of an energy emitted from the candidate location based on the first estimate and the second estimate.
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25. One or more non-transitory machine-readable storage devices storing instructions that are executable by one or more processing devices to cause performance of operations comprising:
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obtaining, from a sensing device at a first time, first information corresponding to a radio signal received at the sensing device from a candidate location, wherein the sensing device is at a first location in its movement trajectory at the first time; obtaining, from the sensing device at a second time, second information corresponding to a radio signal received at the sensing device from the candidate location, wherein the sensing device is at a second location in its movement trajectory at the second time; determining that a known pattern is present in each of the first information and the second information; conditioned on determining that the known pattern is present in each of the first information and the second information; determining a first relationship between the candidate location and the sensing device at the first location, and a second relationship between the candidate location and the sensing device at the second location; obtaining a first inverse of the first relationship and a second inverse of the second relationship; determining a first estimate of the radio signal received at the sensing device from the candidate location based on the first information and the first inverse, and a second estimate of the radio signal received at the sensing device from the candidate location based on the second information and the second inverse; and determining an estimate of energy emitted from the candidate location based on the first estimate and the second estimate.
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Specification