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Is this the patent for the algorithm in question?

http://www.google.com/patents/US20090043584

Certainly looks like it, or at least closely related. Can someone who is not served a localized copy of Google see if it is in fact a patent? (I see "status: application", loosely translated, but that's not something I can check the juridical meaning of.)

If you are able to view this, it is a "United States Patent Application Publication" that is found by following the `view pdf` button on the above link:

https://drive.google.com/viewerng/viewer?url=patentimages.st...

Searching on the USPTO website returns no related patents:

http://patft.uspto.gov/netahtml/PTO/search-bool.html

The indication, to me, is that the patent has not made it past the application process.

USPTO's PAIR website indicates that the application was rejected for non-patentability. I'd link it but PAIR doesn't do permanent links. Go to the main page at [1] and type in the application or publication number.

[1] http://portal.uspto.gov/pair/PublicPair

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