RE: [AVT] Retransmission draft

> -----Original Message-----
> From: Colin Perkins [mailto:csp@csperkins.org]
> Sent: Tuesday, September 02, 2003 11:22 PM
> To: Jose Rey
> Cc: avt@ietf.org
> Subject: Re: [AVT] Retransmission draft
> 
> 
> 
> On Wednesday, Jul 30, 2003, at 14:12 Europe/London, Jose Rey wrote:
> >> -----Original Message-----
> >> From: Colin Perkins [mailto:csp@csperkins.org]
> >> Sent: Monday, July 28, 2003 3:25 PM
> >> To: Jose Rey
> >> Cc: avt@ietf.org
> >> Subject: Re: [AVT] Retransmission draft
> >>
> >>
> >> Jose,
> >>
> >> --> "Jose Rey" <rey@panasonic.de> writes:
> >>> for your information:
> >>>
> >>> Matsushita has sent an IPR disclosure to the IETF IPR website 
> >>> regarding
> >>> patent rights applicable to the 
> draft-ietf-rtp-retransmission-08.txt.
> >>>
> >>> More information can be found under http://www.ietf.org/ipr
> >>
> >> Is it possible for you to elaborate on which parts of the
> >> retransmission format are covered by the Matsushita IPR?
> >
> > The disclosed IPR covers the fact that a packet has two sequence 
> > numbers, one of each is used to determine the transmission 
> order and 
> > the other one is for the reproduction order.  Applying this to the 
> > draft these two sequence numbers map to the "standard" RTP 
> SN and to 
> > the Original Sequence Number (OSN) fields, respectively.
> 
> This would imply that it's not possible to implement the 
> payload format 
> without infringing on the IPR?

Exactly, it is not possible to implement the 
payload format without infringing on the IPR.

cheers,

Jose
> 
> -- 
> Colin Perkins
> http://csperkins.org/
> 

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