[vorbis-dev] patents and separate entropy coding

[Jack Moffitt]

> Note "transform/filter bank".

Also note that several other claims reference "filterbank" as well.  

This patent was originally filed April 17th 1989 in Germany.

If anyone wants to find prior art, that's the date (i think).

We can always defend against certain patents, but it would be nice to
have a good offense tucked away in case FhG ever turned really ugly.
How sweet would it be to have their claims refuted :)

jack.

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