ACCURATELY TRACKING A MOBILE DEVICE TO EFFECTIVELY ENABLE MOBILE DEVICE TO CONTROL ANOTHER DEVICE
First Claim
1. A method for tracking a mobile device, the method comprising:
- estimating a reference position of said mobile device;
computing a relative distance change between said mobile device and another device from said reference position of said mobile device; and
determining, by a processor, an absolute distance between said mobile device and said another device using said reference position and said computed relative distance change.
1 Assignment
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Accused Products
Abstract
A method, system and computer program product for tracking a mobile device. A reference position of the mobile device and a frequency offset between the mobile device and another device are estimated. Samples are then fetched at various frequencies from the receivers. The fetched signals are mixed with a pseudo transmitted signal. A relative distance between the mobile device and the other device is computed based on a change in frequency of the mixed signal at a current location, a velocity of the mobile device and the estimated frequency offset. An absolute distance between the mobile device and the other device is determined using the reference position and the computed relative distance. A location of the mobile device is then determined based on the mobile device'"'"'s velocity and the determined absolute difference.
13 Citations
39 Claims
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1. A method for tracking a mobile device, the method comprising:
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estimating a reference position of said mobile device; computing a relative distance change between said mobile device and another device from said reference position of said mobile device; and determining, by a processor, an absolute distance between said mobile device and said another device using said reference position and said computed relative distance change. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A computer program product for tracking a mobile device, the computer program product comprising a computer readable storage medium having program code embodied therewith, the program code comprising the programming instructions for:
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estimating a reference position of said mobile device; computing a relative distance change between said mobile device and another device from said reference position of said mobile device; and determining an absolute distance between said mobile device and said another device using said reference position and said computed relative distance change. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A mobile device, comprising:
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a memory unit for storing a computer program for tracking said mobile device; and a processor coupled to the memory unit, wherein the processor is configured to execute the program instructions of the computer program comprising; estimating a reference position of said mobile device; computing a relative distance change between said mobile device and another device from said reference position of said mobile device; and determining an absolute distance between said mobile device and said another device using said reference position and said computed relative distance change. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification