Security system for digital cinema
First Claim
1. A theater complex domain comprising:
- a projection unit operable to render decompressed digital video content;
a security module having a decompression unit operable to receive compressed digital video content and to produce the decompressed digital video content;
the compressed digital video content received by the decompression unit comprises unencrypted compressed digital video content, and the decompressed digital video content rendered by the projection unit comprises unencrypted decompressed high bit-rate digital video content; and
the security module having a decryption unit for receiving encrypted compressed digital video content and to produce the unencrypted compressed digital video content.
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Accused Products
Abstract
A system and method for secure delivery and playback of content at a theater complex domain. The domain receives encrypted and compressed content from a studio domain. The theater complex domain comprises at least a projection unit operable to render decompressed digital video content, and a security module removably coupled to the projection unit. The security module includes at least a decompression unit operable to produce decompressed digital video content. The security module further includes a decryption unit coupled to the decompression unit that is operable to produce unencrypted compressed digital video content that is then processed by the decompression unit. The security module further includes a watermark unit coupled to the decompression unit operable to produce the decompressed digital video content rendered by the projection unit that includes a watermark embedded therein. The watermark is used to uniquely identify the projection unit to which the security module is removably coupled, or alternatively, to uniquely identify the security module itself. The security module is physically locked in a tamper resistant container, and is preferably physically locked inside or onto the projection unit to which it is removably coupled. A receiver is coupled to the security module in order to receive the compressed digital video content from the content source or studio domain. The receiver is coupled to the security module, for example, by an internet protocol network. The receiver may receive the compressed digital video content from the studio domain in real-time, or alternatively, a file server may store the compressed digital video content and later provide it to the security module when it is to be rendered. A connection path to the content source may be provided in order to periodically report back to the content source.
41 Citations
36 Claims
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1. A theater complex domain comprising:
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a projection unit operable to render decompressed digital video content;
a security module having a decompression unit operable to receive compressed digital video content and to produce the decompressed digital video content;
the compressed digital video content received by the decompression unit comprises unencrypted compressed digital video content, and the decompressed digital video content rendered by the projection unit comprises unencrypted decompressed high bit-rate digital video content; and
the security module having a decryption unit for receiving encrypted compressed digital video content and to produce the unencrypted compressed digital video content. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 33)
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18. A security module for a projection unit, comprising:
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a decompression unit operable to receive compressed digital video content and to produce decompressed digital video content; and
a security container coupled to and enclosing the decompression unit, wherein the security container is physically removably coupled to the projection unit. - View Dependent Claims (19, 20, 21, 22, 23, 24, 34)
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25. A method of displaying digital video content, the method comprising the steps of:
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receiving compressed digital video content from a content source;
transmitting the compressed digital video content to a security module removably coupled to a projection unit;
decompressing the compressed digital content within the security module so as to produce decompressed digital video content; and
rendering the decompressed digital video content by the projection unit. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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35. A method for secure delivery and playback of content between a studio computing system and theater computing system, the method comprising:
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encrypting the content at the studio computing system;
forwarding the encrypted content from the studio computing system to a theater computing system;
storing by the theater computing system, the encrypted content in memory;
playback of the encrypted content from the theater computing system to a projection unit; and
decryption of the encrypted content at a secure module located within a projection unit such that the act of decrypting is controlled at the studio computing system and the act of play back is controlled by the theater computing system. - View Dependent Claims (36)
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Specification