[Openec] Patented NiMH charging algorithm

[Rafael Enrique Ortiz Guerrero]

that really sucks...i know a little chemistry  but not too much to
completely understand the chemistry/algorithm integration.
so im guessing they study graphs of charge/discharge/temperature
and they come out with the coefficients like v10 and so..but anyway thats
the problem with patents, and there is not too much we can do. :(



On 8/3/07, Richard A. Smith <richard at laptop.org> wrote:
>
> Rafael Enrique Ortiz Guerrero wrote:
>
> > stupid questions:
> >
> > are they using the same general algorithm for the lifepo4 batteries..?
>
> No.  The LFP charging is trival.  Its not affected (enough to matter) by
> temperature.  The discharge/charge voltage cutoffs don't float around
> like they do in NiMH.
>
> > how can be this algorithm made from zero, or what would be the procedure
> > to do so, (im guessinfg it would be too complicated)..?
>
> If its patented is does not matter that you created it from zero.  You
> are still infringing.  You have to come up with a different algorithm
> that achieves the same result.  To come up with that algorithm you have
> to understand a lot about NiMH chemistry.  And even then you might still
> infringe depending on how similar it works out to be to the patent.
>
> --
> Richard Smith  <richard at laptop.org>
> One Laptop Per Child
>
>


-- 
Rafael Enrique Ortiz Guerrero
OLPC Colombia
http://wiki.laptop.org/go/OLPC_Colombia
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