1. MPEG-2 Systems Patents Review ISO/IEC 13818 Rob Glidden, December 2011 1

2. Disclaimer Information provided to facilitate consideration of Type-1 / royalty-free MPEG standardization* Not to be used as legal advice Not represented as comprehensive Only public sources considered Corrections, additions & comments welcome 2 * See N12204, Call for Proposals (CfP) for Internet Video Coding Technologies, ISO/IEC JTC1/SC29/WG11, July 2011, Torino, Italy http://mpeg.chiariglione.org/working_documents/explorations/ivc/ivc-cfp.zip

3. Motivation MPEG Systems IPR provides an informative process template for video coding IPR review Commonalities to any RF video coding proposal Patents claimed on both MPEG LA video & systems (inc. US 5291486, 5796743, 5289276, 5268846, 4970590) Pool list updated regularly since 1996 A royalty-free codec like MPEG IVC will likely need the availability of a royalty-free systems layer 3

4. Systems Patents in Context* 4 17% (23) of MPEG-2 patents 29%(10) of unexpired patents after July 2013 Systems patents * See“MPEG-2 Patent List”, December, 2011 “MPEG-2 Patents”, December, 2011

5. Review Methodology 5 IPRCapabilitiesMapping Unexpired Patents Expired Patents Type-1 (RF) Licensed Patents Unpatented Prior Art AreaCapability PACKETIZATION MODEL Multiplexing Multiple Programs SYNTAX MODEL Packet Header Repetition Adaptation Fields Packet Alignment Flag ltw_offset SECTION MODEL PAT, PMT PSI Table TIMING MODEL Clock Synchronization ERROR HANDLING Error Flagging BUFFER MODEL Bit Rate Control CAS MODEL CAT-EMM-ECM

6. CapabilityExpiredUnexpired MPEG LA Essentiality 31-Jul-13 ClaimsDescription PACKETIZATION MODEL Multiplexing4,970,5901Multiplexing elementary and systems layer streams 5,268,8461Program_stream_directory Multiple Programs 5,459,7899Demultiplexing elementary streams based on PID's SYNTAX MODEL Packet Header5,483,2871Transport packet format with PID, continuity_counter, transport_priority, payload_unit_start_indicator, transport_scrambling_control & adaptation_ field_control 5,365,272*1Transport packet format with PID, continuity_counter & adaptation_field_control Repetition5,289,276*1Transport stream carrying repeat sequence headers Adaptation Fields6,792,001*1Transport packet format with adaptation_field_control 5,867,5015Transport stream, transport packet format with adaptation_field_control, continuity_counter, discontinuity_indicator Packet Alignment Flag5,784,1101PES header alignment in Transport packet 5,796,7431PES header alignment in Transport packet ltw_offset 6,181,712*1Transport stream with ltw_offset SECTION MODEL PAT, PMT5,418,7821,4PMT, PAT PSI Table5,333,13510PSI table format TIMING MODEL Clock Synchronization5,486,864*7PTS, PCR, OPCR 5,565,923*1PCR and OPCR 5,381,181 1Transport stream carrying PCR's and PTS's in packets ERROR HANDLING Error Flagging5,457,7011,4Transport error indicator 7,334,2481Transport stream with PIDs, continuity_counter, transport_error_indicator BUFFER MODEL Bit Rate Control5,608,697*1VBV delay / PTS/DTS decoding delay 5,844,867*1,19,29VBV delay / PTS/DTS decoding delay 5,291,48612Halting input of data when decoder buffer fills 5,606,539*1,18,23,29VBV delay / PTS/DTS decoding delay CAS MODEL CAT-EMM-ECM 5,420,8661,4,8,9CAT, EMM's, ECM's. * Common parents: 07/901045: 5289276;5365272. 08/537701: 6181712;6792001. 08/060924: 5486864;5565923. 07/711186: 5608697; 5844867; 5606539.

7. Conclusion 7 10 systems patents will remain unexpired as of July 31, 2013 Several seem clearly feature-specific A royalty-free codec like MPEG IVC will likely need the availability of a royalty-free systems layer MPEG should consider specifying a royalty- free systems profile

8. Thank You! 8