Protecting digital broadcast content from unauthorized redistribution
First Claim
1. A method of protecting content from unauthorized redistribution in a content protection system comprising:
- verifying, by a modulator device, authenticity of a validated flag, the validated flag comprising a plurality of bits, the validated flag being at least a portion of the content; and
removing, by the modulator device, the validated flag when the validated flag is not authentic.
2 Assignments
0 Petitions
Accused Products
Abstract
Protection of content by deterring unauthorized redistribution may be accomplished by at least one of three methods in a consumer modulator device. A first method protects content from unauthorized redistribution by other devices in a content protection system by verifying authenticity of a validated flag, the validated flag being at least a portion of the content, and by removing the validated flag when the validated flag is not authentic. A second method protects content from unauthorized redistribution by other devices by checking whether the content includes a broadcast flag, the broadcast flag being at least a portion of the content, and by removing the broadcast flag from the content when the broadcast flag is detected in the content. A third method protects content from unauthorized redistribution by other devices by checking whether the content includes a watermark, the watermark being at least a portion of the content, by checking whether the content includes a broadcast flag when the watermark is found in the content, the broadcast flag being at least a portion of the content, and by removing the broadcast flag from the content when the watermark found in the content is more restrictive than a broadcast watermark.
29 Citations
34 Claims
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1. A method of protecting content from unauthorized redistribution in a content protection system comprising:
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verifying, by a modulator device, authenticity of a validated flag, the validated flag comprising a plurality of bits, the validated flag being at least a portion of the content; and
removing, by the modulator device, the validated flag when the validated flag is not authentic. - View Dependent Claims (2, 3, 4, 5)
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6. An article comprising:
- a storage medium having a plurality of machine accessible instructions, wherein when the instructions are executed by a processor, the instructions provide for protecting content from unauthorized redistribution in a content protection system by verifying, by a modulator device, authenticity of a validated flag, the validated flag comprising a plurality of bits, the validated flag being at least a portion of the content, and by removing, by the modulator device, the validated flag when the validated flag is not authentic.
- View Dependent Claims (7, 8, 9)
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10. A modulator device to process content comprising:
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protection logic to verify authenticity of a validated flag, the validated flag comprising a plurality of bits, the validated flag being at least a portion of the content, and to remove the validated flag when the validated flag is not authentic; and
a modulator to modulate the content. - View Dependent Claims (11, 12, 13)
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14. A method of protecting content from unauthorized redistribution in a content protection system comprising:
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checking, by a modulator device, whether the content includes a broadcast flag, the broadcast flag being at least a portion of the content; and
removing, by the modulator device, the broadcast flag from the content when the broadcast flag is detected in the content. - View Dependent Claims (15, 16, 17, 18)
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19. An article comprising:
- a storage medium having a plurality of machine accessible instructions, wherein when the instructions are executed by a processor, the instructions provide for protecting content from unauthorized redistribution in a content protection system by checking, by a modulator device, whether the content includes a broadcast flag, the broadcast flag being at least a portion of the content, and by removing, by the modulator device, the broadcast flag from the content when the broadcast flag is detected in the content.
- View Dependent Claims (20, 21, 22, 23)
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24. A modulator device to process content comprising:
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protection logic to check whether the content includes a broadcast flag, the broadcast flag being at least a portion of the content, and to remove the broadcast flag from the content when the broadcast flag is detected in the content; and
a modulator to modulate the content. - View Dependent Claims (25, 26)
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27. A method of protecting content from unauthorized redistribution in a content protection system comprising:
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checking, by a modulator device, whether the content includes a watermark, the watermark being at least a portion of the content;
checking, by the modulator device, whether the content includes a broadcast flag when the watermark is found in the content, the broadcast flag being at least a portion of the content; and
removing, by modulator device, the broadcast flag from the content when the watermark found in the content is more restrictive than a broadcast watermark. - View Dependent Claims (28, 29)
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30. An article comprising:
- a storage medium having a plurality of machine accessible instructions, wherein when the instructions are executed by a processor, the instructions provide for protecting content from unauthorized redistribution in a content protection system by checking, by a modulator device, whether the content includes a watermark, the watermark being at least a portion of the content, by checking, by the modulator device, whether the content includes a broadcast flag when the watermark is found in the content, the broadcast flag being at least a portion of the content, and by removing, by modulator device, the broadcast flag from the content when the watermark found in the content is more restrictive than a broadcast watermark.
- View Dependent Claims (31, 32)
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33. A modulator device to process content comprising:
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protection logic to check whether the content includes a watermark, the watermark being at least a portion of the content, to check whether the content includes a broadcast flag when the watermark is found in the content, the broadcast flag being at least a portion of the content, and to remove the broadcast flag from the content when the watermark found in the content is more restrictive than a broadcast watermark; and
a modulator to modulate the content. - View Dependent Claims (34)
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Specification