GPS soft baseband processing

[Andy Green]

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Somebody in the thread at some point said:
| On 9/7/08, Flemming Richter Mikkelsen <quatrox at gmail.com> wrote:
|>  "Our automatic geotagging technology solves these
|>  problems. A fragment of RAW GPS RF data is captured
|>  in 0.2 seconds and then stored alongside the digital image
|>  and the processing is performed later on a PC. Because
|>  we separate the GPS capture from the GPS processing,
|>  our technology maintains the traditional "instamatic" user
|>  experience we are all used to and then pulls consumers
|>  to experience a far more interesting way to search and
|>  share photographs later."
|
| Interesting.
| Around 1995 I  used about the same technique to sync spectrometer
| data to an external authoritative timesource ( in that case the DCF77
| signal encoded into 10ms dataframes ) time recovery could achieve
| better than 100us

It sounds like a fine technique, but it pushes the whole issue into
license of the host CPU software then.  They don't seem to mention if
they provide it or it is liberally licensed, etc.

- -Andy
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