Hybrid wireless ranging system and associated methods
First Claim
1. A wireless ranging system comprising:
- a first wireless unit and a second wireless unit spaced therefrom;
said first wireless unit comprisinga time-of-arrival wireless transmitter, anda near-field electromagnetic wireless transmitter having a settable operating frequency;
said second wireless unit comprisinga time-of-arrival wireless receiver cooperating with said time-of-arrival wireless transmitter,a near-field electromagnetic wireless receiver cooperating with said near-field electromagnetic wireless transmitter, anda ranging processor cooperating with said time-of-arrival wireless receiver for generating a range estimate between said first and second wireless units, and generating an estimated operating frequency for said near-field electromagnetic wireless transmitter based upon the range estimate.
1 Assignment
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Accused Products
Abstract
A wireless ranging system includes a first wireless unit and a second wireless unit spaced therefrom. The first wireless unit may include a time-of-arrival (TOA) wireless transmitter, and a near-field electromagnetic (NFE) wireless transmitter having a settable operating frequency. The second wireless unit may include a TOA wireless receiver cooperating with the TOA wireless transmitter, a NFE wireless receiver cooperating with the NFE wireless transmitter, and a ranging processor cooperating with the TOA wireless receiver. The ranging processor may generate a range estimate between the first and second wireless units, and generate an estimated operating frequency for the NFE wireless transmitter based upon the range estimate. The ranging processor may also generate a range window for the TOA wireless receiver via the ranging processor cooperating with the NFE wireless receiver, and use the range window with the TOA wireless receiver to generate a range estimate between the first and second wireless units.
26 Citations
32 Claims
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1. A wireless ranging system comprising:
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a first wireless unit and a second wireless unit spaced therefrom; said first wireless unit comprising a time-of-arrival wireless transmitter, and a near-field electromagnetic wireless transmitter having a settable operating frequency; said second wireless unit comprising a time-of-arrival wireless receiver cooperating with said time-of-arrival wireless transmitter, a near-field electromagnetic wireless receiver cooperating with said near-field electromagnetic wireless transmitter, and a ranging processor cooperating with said time-of-arrival wireless receiver for generating a range estimate between said first and second wireless units, and generating an estimated operating frequency for said near-field electromagnetic wireless transmitter based upon the range estimate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless ranging system comprising:
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a first wireless unit and a second wireless unit spaced therefrom; said first wireless unit comprising a time-of-arrival wireless transmitter, and a near-field electromagnetic wireless transmitter; said second wireless unit comprising a time-of-arrival wireless receiver cooperating with said time-of-arrival wireless transmitter, a near-field electromagnetic wireless receiver cooperating with said near-field electromagnetic wireless transmitter, and a ranging processor cooperating with said near field electromagnetic wireless receiver to generate a range window for said time-of-arrival wireless receiver, and using the range window with said time-of-arrival wireless receiver to generate a range estimate between said first and second wireless units. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for wireless ranging using a first wireless unit and a second wireless unit spaced therefrom, the first wireless unit comprising a time-of-arrival wireless transmitter, and a near-field electromagnetic wireless transmitter having a settable operating frequency, and the second wireless unit comprising a time-of-arrival wireless receiver cooperating with the time-of-arrival wireless transmitter, a near-field electromagnetic wireless receiver cooperating with the near-field electromagnetic wireless transmitter, and a ranging processor connected to the time-of-arrival wireless receiver and the near-field electromagnetic wireless receiver, the method comprising:
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generating a range estimate between the first and second wireless units via the ranging processor cooperating with the time-of-arrival wireless receiver; and generating an estimated operating frequency for the near-field electromagnetic wireless transmitter based upon the range estimate. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. A method for wireless ranging using a first wireless unit and a second wireless unit spaced therefrom, the first wireless unit comprising a time-of-arrival wireless transmitter, and a near-field electromagnetic wireless transmitter having a settable operating frequency, and the second wireless unit comprising a time-of-arrival wireless receiver cooperating with the time-of-arrival wireless transmitter, a near-field electromagnetic wireless receiver cooperating with the near-field electromagnetic wireless transmitter, and a ranging processor connected to the time-of-arrival wireless receiver and the near-field electromagnetic wireless receiver, the method comprising:
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generating a range window for the time-of-arrival wireless receiver via the ranging processor cooperating with the near field electromagnetic wireless receiver; and generating a range estimate between the first and second wireless units using the time-of-arrival wireless receiver with the range window. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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Specification