Secure integrated media center
First Claim
1. A method for processing a controlled-content media file on a secure system, said file having copy status information, the method comprising steps of:
- receiving said controlled-content media file;
checking said copy status information to ensure permission to copy;
storing a local record comprising said copy status information, in said secure system;
encrypting said controlled content media file and said copy status information;
storing the encrypted controlled-content media file and said copy status information on an unsecure storage device.
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Accused Products
Abstract
A set-top media system is disclosed which can be combined with an open architecture personal computer (PC) to provide a feature-rich secure integrated media center while meeting security rules of most major conditional access and content protection industry rules such as Cable Labs DFAST and PHILA agreements; and DTLA agreements for 5C-DTCP for IEEE1394, USB, and IP. The set-top media center and PC share common resources such as high definition display, remote control, hard disk drive, and other external unsecure storage devices. All media content is available seamlessly using a PC user interface, including controlled-content media such as high definition TV, within a PC desktop window. All controlled-content media is manipulated and managed within the set-top media system in a seamless manner. A novel mechanism is disclosed to allow controlled-content media to be stored on unsecure devices in encrypted form while overcoming the disk cloning attack problem for move operations.
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Citations
24 Claims
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1. A method for processing a controlled-content media file on a secure system, said file having copy status information, the method comprising steps of:
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receiving said controlled-content media file;
checking said copy status information to ensure permission to copy;
storing a local record comprising said copy status information, in said secure system;
encrypting said controlled content media file and said copy status information;
storing the encrypted controlled-content media file and said copy status information on an unsecure storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A secure system for processing a controlled-content media file having copy status information, the system comprising:
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a receiver for receiving said controlled-content media file;
a checking means for checking said copy status information to ensure permission to copy;
a non-volatile memory for storing a local record comprising said copy status information;
an encrypting means for encrypting said controlled content media file and said copy status information;
a port adapted for connection to an unsecure storage device, for transmitting the encrypted controlled-content media file and copy status information. - View Dependent Claims (17)
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18. A set-top media system for combining with a personal computer (PC) to provide an integrated media center, said set-top media system comprising:
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a receiver for receiving controlled-content media from a media content provider;
an output port for transmitting a video signal to a video display; and
a bidirectional digital connection to said PC;
wherein said set-top media system is adapted to;
receive a video signal of a PC graphical user interface (GUI) from said PC, said GUI including a window appearing to display said controlled-content media;
receive a message from said PC defining the size and location of said window within said GUI;
overlay over said GUI, a scaled video window of said controlled-content media having the defined size and location;
transmit the resulting video signal to said output port for display on said video display. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification