Position location using global positioning signals augmented by broadcast television signals
AssigneeRosum Corporation
InventorsMatthew Rabinowitz, James J. Spilker, Jr.
Life of this patent
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Abstract
Apparatus having corresponding methods and computer-readable media comprises: a first receiver adapted to receive, at a user terminal, a broadcast television signal from a television signal transmitter; and a second receiver adapted to receive, at the user terminal, a satellite positioning signal from a positioning satellite; wherein a position of the user terminal is determined based on the broadcast television signal, the satellite positioning signal, a location of the television signal transmitter, and a location of the positioning satellite.
Claims19
An apparatus for determining the position of a user terminal, comprising:
- a first receiver adapted to receive, at the user terminal, a broadcast digital television signal from a television signal transmitter;
- and
- a second receiver adapted to receive, at the user terminal, a satellite positioning signal from a positioning satellite;
- wherein a position of the user terminal is determined based on the broadcast digital television signal, the satellite positioning signal, a location of the television signal transmitter, and a location of the positioning satellite.
An apparatus for determining the position of a user terminal, comprising:
- first receiver means for receiving, at the user terminal, a broadcast digital television signal from a television signal transmitter;
- and
- second receiver means for receiving, at the user terminal, a satellite positioning signal from a positioning satellite;
- wherein a position of the user terminal is determined based on the broadcast digital television signal, the satellite positioning signal, a location of the television signal transmitter, and a location of the positioning satellite.
A method for determining the position of a user terminal, comprising:
- receiving, at the user terminal, a broadcast digital television signal from a television signal transmitter;
- and
- receiving, at the user terminal, a satellite positioning signal from a positioning satellite;
- wherein a position of the user terminal is determined based on the broadcast digital television signal, the satellite positioning signal, a location of the television signal transmitter, and a location of the positioning satellite.
Computer-readable media embodying instructions executable by a computer to perform a method comprising:
- determining the position of a user terminal based on
- a broadcast digital television signal received at the user terminal from a television signal transmitter,
- a satellite positioning signal received at the user terminal from a positioning satellite,
- the location of the television signal transmitter, and
- the location of the positioning satellite.
Dependencies are inferred from the claim text.