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Re: [AVT] AMR is not free anymore?

Magnus Westerlund <magnus.westerlund@ericsson.com> Wed, 10 March 2004 08:01 UTC

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Date: Wed, 10 Mar 2004 08:55:55 +0100
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Hi,

[To be very clear, this response is definitely without my Chair-hat]

To all of my knowledge no IPR claims exist in relation to the RTP 
payload format (RFC 3267). That the codec was encumbered has been known 
since the standardization of the codec.

Please do notice that it is possible to build certain applications which 
only has AMR decoder functionality that does not have per unit/channels 
charges associated with them in regards to the patent pool.

Regards

Magnus


Ross Finlayson wrote:

> At 11:58 PM 3/8/04, Raoul Mallart wrote:
> 
>>Was anybody aware that a licencing system has been put in place for AMR
> 
> 
>>(RFC 3267) ?
> 
> 
> Just so there's no confusion: This licensing system applies to the use
> of 
> AMR *encoders* or *decoders* - not to the use of RFC 3267, which
> describes 
> merely how (already-encoded) AMR frames are transported using RTP.
> 
> There is no Intellectual Property Notice attached to RFC 3267, and
> (AFAIK) 
> noone is claiming that RFC 3267 infringes upon any patents.
> 
> 
> 	Ross Finlayson
> 	LIVE.COM
> 	<http://www.live.com/>
> 
> 
> _______________________________________________
> Audio/Video Transport Working Group
> avt@ietf.org
> https://www1.ietf.org/mailman/listinfo/avt
> 

-- 

Magnus Westerlund

Multimedia Technologies, Ericsson Research EAB/TVA/A
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S-164 80 Stockholm, Sweden | mailto: magnus.westerlund@ericsson.com


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