1. High Bandwidth Interface for Cameras and Digital Cinema
Fraunhofer IIS (S. Foessel, A. Widera)
22th Feb 2006
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2.  Actual situation
Today's and future digital cameras need higher interface bandwidth ≥ 10 Gbit/s
High bandwidth interface between cinema server and projector is one possible solution according DCI spec.
With more and more 2k and 4k DI processes postproduction needs also a higher bandwidth interface
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3.  Application fields
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5.  Proposal
Proposal of a 10 GE interface with real-time features, but also with the option to use as a standard interface
Real-time requirements but also compatibility to IT infrastructure desirable, because of the price and availability
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For some applications a robust connector is needed, but not for all (harsh environment and IT environments!)

6.  Concept – Protocol Application layer Data Transport layer UDP header
Network layer
IP header
UDP header
Data
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Network interface
Ethernet header
IP header
UDP header
Data
Physical network

7.  Concept - Overview 10GE standard XFP modules (physical layer)
10GE standard ethernet clocking and framing allows use of 10GE infrastructure (e.g. switches)
Dedicated links between one data source and one or more destinations guarantees real-time work
UDP/IP protocol allows easy integration in workstations
Topologies: point-to-point or point-to-multipoint
Note: The IF is not intended as a general purpose 10GE network with all possible protocols!
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8.  Concept – Protocol Framing
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9.  Concept Use of Ethernet Jumbo Frames up to 9000 Bytes
64/66 Bit encoding / CRC-32 / optional FEC
Payload within a frame can be
Image Data, compressed or uncompressed (e.g. one line of an image per Ethernet frame, or one component of a line)
Audio Data, compressed or uncompressed
Metadata Data
Control Data
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10.  Time schedule
Realization of a complete 10GE link demonstrator and technology study within the next 8 months
Use of the Fraunhofer developments ARRI D20 and megacine field recorder as example
Involvement of the ASC into the requirement definitions and tests (Cooperation is officially defined)
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11. Thank you for your attention!
 Contact
Dr. Siegfried Foessel Fraunhofer IIS Germany
Thank you for your attention!
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