3. Proposal Make the Modifications Describe Above to FG IPTV-DOC-0159

INTERNATIONAL TELECOMMUNICATION UNION FOCUS GROUP ON IPTV TELECOMMUNICATION FG IPTV-C-1040 STANDARDIZATION SECTOR STUDY PERIOD 2005-2008 English only

WG(s): 5 7th FG IPTV meeting: Qawra, St Paul’s Bay, Malta, 11 – 18 December 2007 CONTRIBUTION Source: Cinea, Inc. a Dolby Company Title: Provision for Content Tracing in IPTV Architecture

1. Introduction

FG IPTV-DOC-0147 Working Document: IPTV Services Requirements Clause 6.3.2 Content Protection declares a requirement to support Content Tracing services in the IPTV Architecture. Document FG IPTV-DOC-0155, Working Document: IPTV Security Aspects further cites the use of watermarking to implement Content Tracing.

Content Tracing enhances content protection most effectively when a content instance can be uniquely associated with the IPTV End System (IES) that received the protected content. In architectures employing multi-cast or broadcast distribution, where every IES receives an identical copy of the content, content tracing information can be embedded into the content only by the IES itself. Thus provision for content tracing technology is a important issue in IES design.

Document FG IPTV-DOC-0159, Working Document : Aspects of IPTV End System – Terminal Device does not, however, contain language to support implementation of Content Tracing services. It is this contributor’s intent to provide such language for inclusion in FG IPTV-DOC-0159.

Contact: Joseph E. Oren Tel: +1 804 644 4444 Cinea, Inc. a Dolby Company Fax: USA Email [email protected] Attention: This is a document submitted to the work of ITU-T and is intended for use by the participants to the activities of ITU-T's Focus Group on IPTV, and their respective staff and collaborators in their ITU-related work. It is made publicly available for information purposes but shall not be redistributed without the prior written consent of ITU. Copyright on this document is owned by the author, unless otherwise mentioned. This document is not an ITU-T Recommendation, an ITU publication, or part thereof. - 2 - FG IPTV–C–1040

2. Text

Clause 3.1 Terms Defined Elsewhere Add the following:

3.1.2 Content Tracing: See WG3 document FG IPTV-DOC-155.

Clause 3.2 Terms defined within this document Add the following and resequence appropriately:

3.2.x Watermark: Machine readable data in the form of a signal embedded in a digital media stream so as to be imperceptible to the consumer, but persistent through faithful transformations of the content. Note that this definition pertains to watermarks in the context of IPTV service and is not a universal definition of a watermark. In the IPTV context, watermarks are used to facilitate Rights Management and media piracy investigation.

Clause 6.4 Personal Video Recorder (PVR) Services Expand the last bullet in enumeration of PVR Service functions to ensure that rights and copy protections are maintained. Replace “…devices according to copyright privileges.” With:

“…devices. Such services are required to ensure that copyright enforcement mechanisms are preserved and that content tracing information is embedded in the copy insofar as required by the content provider.”

Clause 7.1.4 Security Clarify and strengthen security requirement by adding the following text, following “… respectively.” :

“In all cases, the IPTV TD is required to securely make known to the content source, its SCP capabilities, and ensure that SCP means required by the content provider are present and operable, prior to descrambling a content item.”

Clause 7.2.1.3 SCP Add the following to the enumeration of functions:

.) Creation of content tracing information to be bound to the content, if required by the content provider. .) Embedding of content tracing information, or enforcing subsequent embedding of content tracing information, if required by the content provider. - 3 - FG IPTV–C–1040

Clause 7.2.1.4 Demux/Mux Add the following to the enumeration of functions:

.) Embedding of content tracing information if required by the content provider and not done previously (see 7.2.1.3).

Clause 7.2.1.5 Decode Add the following to the enumeration of functions:

.) Embedding of content tracing information if required by the content provider and not done previously (see 7.2.1.3, 7.2.1.4).

3. Proposal Make the modifications describe above to FG IPTV-DOC-0159.

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