POSITION DETERMINATION USING RECEIVED BROADCAST SIGNALS
First Claim
1. A radio device, comprising:
- a receiver operable to receive a plurality of broadcast radio signals, each broadcast from a respective one of a plurality of broadcast radio signal sources; and
processing circuitry coupled to said receiver and operable to;
determine respective call station identification information associated with each of said plurality of broadcast radio signals from each of said plurality of broadcast radio signals, each said call station identification information identifying a respective one of said plurality of broadcast radio signal sources;
measure respective signal quality characteristics for each of said plurality of broadcast radio signals from said respective broadcast radio signals,identify station position data associated with each of said broadcast radio signal sources from said respective call station identification information, said station position data indicating a respective location of each of said broadcast radio signal sources, andcalculate a location of said radio device using said signal quality characteristics and said station position data associated with at least three of said broadcast radio signal sources.
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Accused Products
Abstract
A radio device that is capable of positioning itself within a broadcast radio system includes a receiver operable to receive a plurality of broadcast radio signals, each broadcast from a respective one of a plurality of broadcast radio signal sources. The radio device further includes processing circuitry operable to determine respective call station identification information for each of the broadcast radio signal sources from the broadcast radio signals, measure respective signal quality characteristics for each of the received broadcast radio signals, identify station position data associated with each of the broadcast radio signal sources from the respective call station identification information, and calculate a location of the radio device using the signal quality characteristics and station position data associated with at least three broadcast radio signal sources.
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Citations
29 Claims
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1. A radio device, comprising:
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a receiver operable to receive a plurality of broadcast radio signals, each broadcast from a respective one of a plurality of broadcast radio signal sources; and processing circuitry coupled to said receiver and operable to; determine respective call station identification information associated with each of said plurality of broadcast radio signals from each of said plurality of broadcast radio signals, each said call station identification information identifying a respective one of said plurality of broadcast radio signal sources; measure respective signal quality characteristics for each of said plurality of broadcast radio signals from said respective broadcast radio signals, identify station position data associated with each of said broadcast radio signal sources from said respective call station identification information, said station position data indicating a respective location of each of said broadcast radio signal sources, and calculate a location of said radio device using said signal quality characteristics and said station position data associated with at least three of said broadcast radio signal sources. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for determining a location of a radio device using broadcast radio signals, comprising the steps of:
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receiving a plurality of broadcast radio signals, each broadcast from a respective one of a plurality of broadcast radio signal sources; determining respective call station identification information associated with each of said plurality of broadcast radio signals from each of said received plurality of broadcast radio signals, each said call station identification information identifying a respective one of said plurality of broadcast radio signal sources; measuring respective signal quality characteristics for each of said plurality of broadcast radio signals from said respective broadcast radio signals; identifying station position data associated with each of said broadcast radio signal sources from said respective call station identification information, said station position data indicating a respective location of each of said broadcast radio signal sources; and calculating said location of said radio device using said signal quality characteristics and said station position data associated with at least three of said broadcast radio signal sources. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification