Method and apparatus for tagging digital photographs with geographic location data
First Claim
1. A digital camera, comprising:
- an imaging unit for generating digital photographs;
a front end for receiving satellite positioning system signals and generating digital samples therefrom; and
a memory for storing a set of digital samples generated by said front end with each digital photograph generated by said imaging unit.
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Accused Products
Abstract
A method and apparatus for tagging digital photographs with geographic location data is described. In one example, a digital camera includes an imaging unit, a radio frequency/intermediate frequency (RF/IF) front end, and a memory. The imaging unit is configured to generate digital photographs. The RF/IF front end is configured to receive satellite positioning system signals and generate digital samples therefrom. The memory is configured to store a set of digital samples generated by the RF/IF front end with each digital photograph generated by the imaging unit. The digital samples produced by the RF/IF front end may be intermediate frequency samples and may include both in-phase samples and quandrature samples. Notably, the memory stores digital samples of GPS signals, rather than location data. The digital GPS samples may be processed by an off-line processing unit, such as a computer, to produce location data.
52 Citations
20 Claims
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1. A digital camera, comprising:
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an imaging unit for generating digital photographs;
a front end for receiving satellite positioning system signals and generating digital samples therefrom; and
a memory for storing a set of digital samples generated by said front end with each digital photograph generated by said imaging unit. - View Dependent Claims (2, 3, 5)
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4. The digital camera of claim 4, further comprising:
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a clock for tracking time-of-day;
wherein a time-of-day value generated by said clock is stored with said set of digital samples in said memory.
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6. A system for organizing digital photographs, comprising:
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a digital camera, comprising;
an imaging unit for generating digital photographs;
a front end for receiving satellite positioning system signals and generating digital samples therefrom;
a memory for storing a set of digital samples generated by said front end with each digital photograph generated by said imaging unit; and
a data port configured to communicate with said memory; and
a computer, coupled to said data port, for retrieving at least one digital photograph and corresponding set of digital samples from said memory and for processing each set of digital samples retrieved to produce location data. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method, comprising:
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generating one or more digital photographs at a digital camera;
generating one or more sets of digital samples from a plurality of satellite positioning system signals at said digital camera; and
respectively storing said one or more sets of digital samples with said one or more digital photographs in a memory. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A digital camera, comprising:
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an imaging unit for generating one or more digital photographs;
means for generating one or more sets of digital samples from a plurality of satellite positioning system signals at said digital camera; and
means for respectively storing said one or more sets of digital samples with said one or more digital photographs in a memory.
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Specification