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Published byBlaze Sherman Modified over 9 years ago
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Analog Reconversion Reference Architecture Proposal presented to the Analog Reconversion Discussion Group March 5, 2003 by Brad Hunt Chief Technology Officer Motion Picture Association of America
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Analog Output (in the clear) Digital Video Recording Function Digital Video Recorder with Protected Digital Inputs Protected Digital Output (encrypted) Analog-to-Digital Video Converter Device Rendering Protected Digital Content with Usage Rights Information Digital Video Recorder with Analog Inputs Analog Reconversion Problem For legacy analog devices, protected digital video content must be converted to analog video signals.For legacy analog devices, protected digital video content must be converted to analog video signals. Analog video signals can be easily converted to digital without any obligations to preserve the content’s usage rights information.Analog video signals can be easily converted to digital without any obligations to preserve the content’s usage rights information. Since the usage rights are not managed equivalently, the natural transition from analog to an all-digital world is impeded.Since the usage rights are not managed equivalently, the natural transition from analog to an all-digital world is impeded. Rights are NOT managed equivalently Rights NOT Preserved Internet Rights Preserved
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Analog Reconversion Reference Architecture Digital Content Master Digital Source Device with Analog Output (Trusted Environment) Copy Control Information Digital Content Link Protected Digital Output with CCI Digital Processing (decryption, decoding, etc.) Protected Digital Content Delivery with Copy Control Information (CCI) Digital Sink Device with Analog Input (Trusted Environment) Rights Information Digital Content Secure Digital Video Record Function (CCI = Rights) Secure Digital Output Function (CCI = Rights) Record Control Redistribution Control Protected Digital Output with CCI Protected Digital Recording with CCI Analog Output with Rights Signaling Digital -to- Analog Video Converter (Rights = CCI) Analog Output with Rights Signaling Protected Digital Output with CCI Brad Hunt 3-5-03 Digital Processing (encoding, encryption, etc.) Digital Content CCI Rights Signaling Insertion Point (Digital) A Rights Signaling Insertion Point (Digital) B Rights Signaling Insertion Point (Digital) D Rights Signaling Insertion Point (Analog) E Possible Rights Signaling Insertion Points Rights Signaling Insertion Point (Digital) C Link Protected Digital Input with CCI Rights Signaling Detection Point (Analog) W Rights Signaling Detection Point (Digital) X Rights Signaling Detection Point (Digital) Y Possible Rights Signaling Detection Points Rights Signaling Detection Point (Digital) Z Analog -to- Digital Video Converter
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