USE OF BROADCAST POSITION DATA FOR SUBSEQUENT GPS LOCATION FIX
First Claim
Patent Images
1. A Global Positioning System (GPS) receiver within a radio device, comprising:
- an interface coupled to receive a broadcast parameter determined using broadcast radio signals broadcast from radio stations;
an antenna coupled to receive a GPS signal including GPS data transmitted from at least one of a plurality of GPS satellites; and
processing circuitry coupled to receive said GPS signal and said broadcast parameter and operable to calculate a GPS location of said radio device using said broadcast parameter and said GPS signal.
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Accused Products
Abstract
A radio device that is capable of positioning itself within a broadcast radio system includes a radio 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 a GPS receiver coupled to receive a broadcast parameter determined using the broadcast radio signals and operable to calculate a GPS location of the radio device using the broadcast parameter.
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Citations
20 Claims
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1. A Global Positioning System (GPS) receiver within a radio device, comprising:
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an interface coupled to receive a broadcast parameter determined using broadcast radio signals broadcast from radio stations; an antenna coupled to receive a GPS signal including GPS data transmitted from at least one of a plurality of GPS satellites; and processing circuitry coupled to receive said GPS signal and said broadcast parameter and operable to calculate a GPS location of said radio device using said broadcast parameter and said GPS signal. - View Dependent Claims (2, 3, 4)
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5. 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; 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 broadcast 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; and a Global Positioning System (GPS) receiver coupled to receive said broadcast location and operable to calculate a GPS location of said radio device using said broadcast location. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for positioning a radio device using a built-in GPS receiver, said method comprising:
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receiving a broadcast parameter determined using broadcast radio signals broadcast from radio stations; receiving a GPS signal including GPS data transmitted from at least one of a plurality of GPS satellites; and calculating a GPS location of said radio device using said broadcast parameter and said GPS signal. - View Dependent Claims (17, 18)
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19. A method for determining a location of a radio device, 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; calculating a broadcast 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; and calculating a Global Positioning System (GPS) location of said radio device using said broadcast location. - View Dependent Claims (20)
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Specification