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?

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

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