Re: [AVT] Retransmission draft

--> José Rey <rey@panasonic.de> writes:
...
> > > In order to make this situation clear to anybody who reads the RTP
> > > retransmission draft, we suggest to add a paragraph at the very
> > > beginning of the draft. This paragraph will make implementors aware
> > > of the situation that the solution described in this draft is
> > > possibly encumbered by IPRs. Furthermore it will point implementors
> > > to non-IPR-encumbered solutions as above, which may perfectly be used
> > > instead of RTP retransmission.
> >
> > Without seeing the wording of this paragraph, I can't give a
> > definitive answer, but that would largely address my concerns.
> 
> right, how about this:
> 
> "This document provides an RTP packet retransmission mechanism for repair
> of streaming media.  The purpose of this paragraph is to make the reader
> aware that the retransmission mechanism described in this document may be
> encumbered by patent applications filed from Matsushita.  For details on
> the IPR statement, please visit the IETF IPR web page
> http://www.ietf.org/ietf/IPR.
> 
> However, packet retransmission is not the only means for streaming
> clients and servers to cope with packet losses.  A detailed description
> of options for repair of streaming media is given in RFC2354.  Therefore,
> implementers of this protocol shall take into account that there are in
> fact other mechanisms, such as forward error correction (FEC) or packet
> interleaving that represent an alternative to solve the problems packet
> retransmission tries to solve.    In particular RFC2733 and RFC2198
> present FEC and redundant packet transmission schemes that might well fit
> to the needs of the implementer. "

[takes working group chair hat off]

This, at least, would stop accidental infringement which is one of my main
concerns. I would still strongly prefer a royalty-free license, however.

Colin

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