Analog Reconversion Reference Architecture Proposal presented to the Analog Reconversion Discussion...
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Analog Reconversion Analog Reconversion Reference Architecture Reference Architecture Proposal Proposal presented to the presented to the Analog Reconversion Discussion Group Analog Reconversion Discussion Group March 5, 2003 March 5, 2003 by by Brad Hunt Brad Hunt Chief Technology Officer Chief Technology Officer Motion Picture Association of America Motion Picture Association of America
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Transcript of Analog Reconversion Reference Architecture Proposal presented to the Analog Reconversion Discussion...
Analog ReconversionAnalog ReconversionReference ArchitectureReference Architecture
ProposalProposal
presented to the presented to the Analog Reconversion Discussion GroupAnalog Reconversion Discussion Group
March 5, 2003March 5, 2003
bybyBrad HuntBrad Hunt
Chief Technology OfficerChief Technology OfficerMotion Picture Association of AmericaMotion Picture Association of America
AnalogOutput
(in the clear)
Digital Video RecordingFunction
Digital Video Recorder
with Protected Digital Inputs
ProtectedDigital Output
(encrypted)
Analog-to-DigitalVideo Converter
Device RenderingProtected
Digital Contentwith
Usage Rights Information
Digital Video Recorder with Analog Inputs
Analog Reconversion ProblemAnalog Reconversion Problem
• For legacy analog devices, protected digital video content must be For legacy analog devices, protected digital video content must be converted to analog video signals.converted to analog video signals.
• Analog video signals can be easily converted to digital without any Analog video signals can be easily converted to digital without any obligations to preserve the content’s usage rights information.obligations to preserve the content’s usage rights information.
• Since the usage rights are not managed equivalently, the natural Since the usage rights are not managed equivalently, the natural transition from analog to an all-digital world is impeded.transition from analog to an all-digital world is impeded.
Rights are NOT Rights are NOT managed managed
equivalentlyequivalently
Rights NOTPreserved
Internet
RightsPreserved
Analog Reconversion Reference ArchitectureAnalog Reconversion Reference Architecture
DigitalContentMaster
Digital Source Devicewith Analog Output
(Trusted Environment)
CopyControl
Information
DigitalContent
LinkProtected
DigitalOutput
with CCI
Digital Processing
(decryption,decoding,
etc.)
ProtectedDigital
ContentDelivery
withCopy
ControlInformation
(CCI)
Digital Sink Devicewith Analog Input(Trusted Environment)
RightsInformation
DigitalContent
SecureDigitalVideo
Record Function(CCI = Rights)
SecureDigitalOutput
Function(CCI = Rights)
Record Control
Redistribution Control
ProtectedDigital Output
with CCI
ProtectedDigital Recording
with CCI
Analog Outputwith
Rights Signaling
Digital-to-
AnalogVideo
Converter(Rights = CCI)
Analog Output
withRights
Signaling
ProtectedDigitalOutput
with CCI
Brad Hunt3-5-03
Digital Processing
(encoding,encryption,
etc.)
DigitalContent
CCI
RightsSignalingInsertion
Point(Digital)
A
RightsSignalingInsertion
Point(Digital)
B
RightsSignalingInsertion
Point(Digital)
D
RightsSignalingInsertion
Point(Analog)
E
Possible Rights Signaling Insertion Points
RightsSignalingInsertion
Point(Digital)
C
LinkProtected
DigitalInput
with CCI
RightsSignalingDetection
Point(Analog)
W
RightsSignalingDetection
Point(Digital)
X
RightsSignalingDetection
Point(Digital)
Y
Possible Rights Signaling Detection Points
RightsSignalingDetection
Point(Digital)
Z
Analog-to-
DigitalVideo
Converter
