IPR Details
Skype Limited's Statement about IPR related to draft-ietf-codec-opus-07

Submitted: July 23, 2011 under the rules in RFC 3979 as updated by RFC 4879

Note: Updates to IPR disclosures must only be made by authorized representatives of the original submitters. Updates will automatically be forwarded to the current Patent Holder's Contact and to the Submitter of the original IPR disclosure.



I. Patent Holder/Applicant ("Patent Holder")

Holder legal name
Skype Limited

II. Patent Holder's Contact for License Application

Holder contact name
Antti Seppala
Holder contact email
Holder contact info

Legal Counsel
2 Stephen Street
London W1T 1AN
T: +44 (0) 203 286 2280

III. Contact Information for the IETF Participant Whose Personal Belief Triggered this Disclosure

Koen Vos
Other info

Distinguished Engineer
1934 29th Ave
San Francisco, CA
T: 14153784468

IV. IETF Document or Other Contribution to Which this IPR Disclosure Relates

draft-ietf-codec-opus ("Definition of the Opus Audio Codec")
Revisions: 07

V. Disclosure of Patent Information i.e., patents or patent applications required to be disclosed by RFC 3979 as updated by RFC 4879

A. For granted patents or published pending patent applications, please provide the following information:

Patent, Serial, Publication, Registration, or Application/File number(s)

Date: 20 Feb 2007
Country: Varied (see above)

B. Does this disclosure relate to an unpublished pending patent application?:

Has patent pending

VI. Licensing Declaration

The Patent Holder states that its position with respect to licensing any patent claims contained in the patent(s) or patent application(s) disclosed above that would necessarily be infringed by implementation of the technology required by the relevant IETF specification ("Necessary Patent Claims"), for the purpose of implementing such specification, is as follows(select one licensing declaration option only):

See Text Below for Licensing Declaration
Licensing information, comments, notes, or URL for further information

Skype grants a royalty free license to any claims of the patents disclosed in Section V of this IPR disclosure that are infringed by a reference implementation of the Standard to any person or entity for using, making, selling, offering for sale, or importing (i) a decoder that fully complies with the Standard (“Compliant Decoder”) or (ii) an encoder that encodes a bit stream that is capable of being decoded by a Compliant Decoder (“Compliant Encoder”). The foregoing license will be limited to those portions of any Compliant Encoder that are used solely to encode a bit stream that can be decoded by a Compliant Decoder, and those portions of any decoder that are used to decode a bit stream that can be encoded by a Compliant Encoder.

The above license is granted subject to the licensee undertaking not to assert any patent, against Skype or any third party in relation to any implementation of the Standard or any part thereof, that is infringed by any implementation of the Standard or part of the technology included therein (each, a “Relevant Patent”), and granting a royalty free license to any Relevant Patent for any party implementing the Standard or any technology included therein. Notwithstanding the foregoing, the licensee shall be released from its undertaking not to assert any Relevant Patent with respect to a third party who asserts or otherwise claims or alleges infringement of any Relevant Patent against the licensee for implementing the Standard. Skype will retain the right to terminate the license and assert its patents (including the right to claim past royalties) against any licensee that asserts or whose affiliate asserts any patent (either directly or indirectly) against Skype or any of Skype’s affiliates or successors in title. A royalty bearing option will also be available.

For the purposes of this Licensing Declaration, “Standard” means the Internet Draft specified in Section IV of this IPR disclosure (draft-ietf-opus-codec-07) or future updates of draft-ietf-opus-codec, or the standards track RFC produced from it.

Note: The individual submitting this template represents and warrants that he or she is authorized by the Patent Holder to agree to the above-selected licensing declaration.

VII. Contact Information of Submitter of this Form

Submitter name
Koen Vos
Submitter email

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