Position location using broadcast digital television signals
First Claim
Patent Images
1. A method for determining the position of a user terminal, comprising:
- receiving at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters;
determining a pseudo-range between the user terminal and each DTV transmitter based on the DTV broadcast signals; and
determining a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters.
4 Assignments
0 Petitions
Accused Products
Abstract
A computer program product, apparatus, and method for determining the position of a user terminal. It includes receiving at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters, determining a pseudo-range between the user terminal and each DTV transmitter based on the DTV broadcast signals, and determining a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters.
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Citations
114 Claims
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1. A method for determining the position of a user terminal, comprising:
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receiving at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters;
determining a pseudo-range between the user terminal and each DTV transmitter based on the DTV broadcast signals; and
determining a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for determining the position of a user terminal, comprising:
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receiving at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters;
determining a pseudo-range between the user terminal and each DTV transmitter based on the DTV broadcast signals; and
transmitting the pseudo-ranges to a location server configured to determine a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. A method for determining the position of a user terminal, comprising:
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receiving a plurality of pseudo-ranges from a user terminal, each pseudo-range determined between the user terminal and one of a plurality of DTV transmitters based on DTV signals broadcast by the DTV transmitters; and
determining a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. An apparatus for determining the position of a user terminal, comprising:
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means for receiving at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters;
means for determining a pseudo-range between the user terminal and each DTV transmitter based on the DTV broadcast signals; and
means for determining a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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57. An apparatus for determining the position of a user terminal, comprising:
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means for receiving at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters;
means for determining a pseudo-range between the user terminal and each DTV transmitter based on the DTV broadcast signals; and
means for transmitting the pseudo-ranges to a location server configured to determine a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters. - View Dependent Claims (58, 59, 60, 61, 62, 63, 64)
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65. An apparatus for determining the position of a user terminal, comprising:
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means for receiving a plurality of pseudo-ranges from a user terminal, each pseudo-range determined between the user terminal and one of a plurality of DTV transmitters based on DTV signals broadcast by the DTV transmitters; and
means for determining a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters. - View Dependent Claims (66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76)
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77. A computer program product, tangibly stored on a computer-readable medium, for determining the position of a user terminal, comprising instructions operable to cause a programmable processor to:
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receive at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters;
determine a pseudo-range between the user terminal and each DTV transmitter based on the DTV broadcast signals; and
determine a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters. - View Dependent Claims (78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94)
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95. A computer program product, tangibly stored on a computer-readable medium, for determining the position of a user terminal, comprising instructions operable to cause a programmable processor to:
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receive at the user terminal a plurality of digital television (DTV) broadcast signals from a plurality of DTV transmitters;
determine a pseudo-range between the user terminal and each DTV transmitter based on the DTV broadcast signals; and
transmit the pseudo-ranges to a location server configured to determine a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters. - View Dependent Claims (96, 97, 98, 99, 100, 101, 102)
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103. A computer program product, tangibly stored on a computer-readable medium, for determining the position of a user terminal, comprising instructions operable to cause a programmable processor to:
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receive a plurality of pseudo-ranges from a user terminal, each pseudo-range determined between the user terminal and one of a plurality of DTV transmitters based on DTV signals broadcast by the DTV transmitters; and
determine a position of the user terminal based on the pseudo-ranges and a location of each of the DTV transmitters. - View Dependent Claims (104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114)
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Specification