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 Home > News > Consumer Electronics > Sony's ...
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Monday, March 28, 2011
Sony's DCI- Compliant 4K Digital Cinema Projection System Brings New Anti-piracy Measures To the Big Screen


Sony 's digital cinema projection system completed the compliance tests for the anti-piracy specifications required by Digital Cinema Initiatives, LLC (DCI).

DCI is a joint venture of six Hollywood major studios (Walt Disney Company, Sony Pictures Entertainment, Inc., 20th Century Fox, Paramount Pictures Corporation, Warner Bros. Entertainment Inc., and Universal Studios Inc.). It defines the standard specification for digital films and projectors, in particular it emphasizes movie content protection security.

The DCI specification prescribes the data file format called "Digital Cinema Package" (DCP), which includes encryption for digital movie content. DCP file can be distributed by satellite or delivered to theaters on a hard disc drive (HDD). The cryptographic key is also separately delivered to theaters. The DCP file is decrypted with the cryptographic key by the cinema server, and screened by the projector. The DCP is embedded with an electric watermark (forensic mark) to prevent illegal recording of projected content. Security measures such as an anti-tamper function are also incorporated in the projection system to prevent DCP files from being stolen, eliminating the possibility of pirated production.

Sony's new DCI Specification compliant system combines a projector and cinema server. It is comprised of a projector that can project ultra-high-resolution 4K video (8.85 million pixels, more than four times that of full HD) and a cinema server that can store and transfer video content to the projector. Sony was accredited with the DCI Specification for its complete system, "Integrated Projection System".



The DCI compliance test for Sony?s system was conducted by Keio University?s (Japan) Research Institute for Digital Media and Content, which is authorized by DCI to conduct compliance testing. The compliance test consists of two parts including the procedural test to confirm if the devices work in accordance with the DCI Specification, and the design evaluation to examine if their security designs meet the requirements of the DCI Specification.

Sony?s 4K digital cinema projection systems have been widely accepted around the world, as Sony has signed agreements to digitize many major theater chains, including Regal Entertainment Group theatres and AMC Entertainment Inc., which are two of North America?s largest theater circuits; National Amusements Inc., which operates theaters in the US., U.K., and Latin America; VUE Entertainment, which operates movie screens in Europe; and TOHO Cinemas Inc., which is the largest theater chain in Japan.

Sony aims at deploying a total of 30000 digital cinema projection systems in theaters worldwide and acquire top market share of 40% by 2013.


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