© 2003 Verance Corporation. 1

Verance Copy Management System

Presentation to CPTWG ARDG

April 10, 2003

© 2003 Verance Corporation. 2

Presentation Overview

• Verance Copy Management System for Audio Content (VCMS/A)– Performance Specifications– Format Support– System Architectures– Deployment Status

• Applying VCMS to Protecting A/V Content (VCMS/AV)– Technical Considerations

• Conclusions

© 2003 Verance Corporation. 3

VCMS/A: Overview

• Multi-industry “consensus audio watermark” for audio only content

• Core technology from Verance, tailored to music industry requirements, independently evaluated, and adopted by consensus

• Provides persistent copy status signaling in audio and playback control, record control, and generational copy management functions in consumer devices

• Perceptually transparent, robust to a wide range of distortions, large data payload, low processing requirements

• Mature, proven technology with significant deployments

• Adaptable to evolving market needs, technical requirements

© 2003 Verance Corporation. 4

VCMS/A: Performance Specifications

• Perceptual Quality– Absolute transparency to “golden ears” on 96/24 content

• Data Payload– 4 CCI bits per 15 seconds (3 assigned [1 “remark”-able]; 1 rsvd.)– 8 Usage ID bits per 15 seconds (reserved)– 60 Content ID bits per 30 seconds (reserved)

• Robustness– 36 dB SNR noise– 6 kHz bandlimiting– 32 kbps/channel codec– +/-10% linear speed– +/-4% PITS

• Computational Requirements– Detect from 48/16/2 PCM: 10 MIPS, 16 kB data, 8 kB code– Remark on 48/16/2 PCM: 20 MIPS, 32 kB data, 20 kB code (proj.)

– Wow & flutter– Echo/reverb– EQ +/-6dB/oct– Channel mixing 621– Dynamic range compression

© 2003 Verance Corporation. 5

VCMS/A: Performance Validation

• Performance validated through independent evaluations– 1997

• MUSE Program for Digital Media Management in the European Music Sector

– 1998• 4C Entity Evaluation of Audio Watermarks for use in Copy

Protection System Architecture (CPSA)– 1999

• Secure Digital Music Initiative Evaluation of Screening Technologies for SDMI Portable Device Specification, Phase I

– 2000• Secure Digital Music Initiative Evaluation of Screening

Technologies for SDMI Portable Device Specification, Phase II– 2001

• JASRAC STEP 2001 Project for Certification of Digital Audio Watermark Technology

© 2003 Verance Corporation. 6

VCMS/A: Format Support

• Watermarked audio can be distributed in any format– Packaged media

• CD, DVD-V, DVD-A, SACD, etc.

– Electronically distributed media• Webcasting, subscription services, downloaded content, etc.

– Broadcast media• Free-to-air, digital music services, satellite radio, etc.

• Watermark enforcement required in “compliant” secure formats– 4C Entity Copy Protection System Architecture (CPPM/CPRM)

• DVD Audio playback and record control• SD Card Audio record control

– SDMI Portable Device Specification• Media player application record control• Portable music device record control

© 2003 Verance Corporation. 7

VCMS/A: System Architecture

• Defined Watermark States:– “copy freely”, “one copy allowed”, “no more copies”– “sdmi upgrade trigger set/not set” (obsolete)

• Compliance Rules:– Screen all unencrypted content for watermark at inputs– Accept “copy freely” and unmarked content– Reject content marked “no more copies”– Handling of “one copy allowed” is format dependent

• DVD playback: Reject if unencrypted• DVD recording: Allow but encrypt and mark “no more copies”• SDMI recording: Accept

– Device must be tamper-resistant– Compliance is “self-certified”

© 2003 Verance Corporation. 8

VCMS/A: Deployment Status

• Content Owners– All major labels distributing watermarked EMD content

• Hundreds of thousands of tracks embedded– One major label distributing watermarked packaged media

• Hundreds of DVD Audio titles

• Consumer Products– All DVD Audio players and recorders include watermark detectors

• Over one million consumer devices (including hybrid DVD-V/DVD-A)• Detectors included in many OEM chipsets

(e.g. Cirrus Logic, Hitachi, MEI, Sharp, ST Micro, Toshiba, Zoran)– All SD Card Audio devices include detectors

• Hundreds of thousands of consumer devices• Primarily cellular phones for the Japanese market

– Some portable music devices• Devices from Philips, SonicBlue/Rio, Samsung, and Sony

– No adoption in software media player market

© 2003 Verance Corporation. 9

VCMS/A: Representative Customers

© 2003 Verance Corporation. 10

• Use audio watermark to protect A/V content by adapting VCMS/A technology

• Benefits:– Existing implementations accelerate deployment– Common core technology reduces resource requirements– Larger adopter base amortizes economic costs– Existing standard status facilitates acceptance

VCMS/AV: Adapting VCMS/A to A/V Content

VCMS/A

VCMS/AV

COMMON CORE TECHNOLOGY

© 2003 Verance Corporation. 11

VCMS/AV: Technical Considerations

• Performance Specifications– Transparency, Robustness, Data Payload,

Computational Requirements, Effectiveness

• System Architecture– Watermark states, Compliance Rules,

Harmonization of Audio and A/V Compliance Rules

• Format Support– Formats, Devices, System Architectures

© 2003 Verance Corporation. 12

Conclusions

• VCMS is proven and accepted solution for music

• VCMS is a potential near-term solution for A/V content

• VCMS provides substantial flexibility and expandability as market needs and tech environment evolve

© 2003 Verance Corporation. 13

Verance Copy Management System

Presentation to CPTWG ARDG

April 10, 2003