SYSTEM AND METHOD FOR PROTECTING ADVERTISING CUE MESSAGES
First Claim
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1. An apparatus for encoding a broadcast data stream comprising:
- a message processor that generates an advertisement cue message includingdata representing a advertisement to be inserted into a stream anddata representing an insertion time within said broadcast data stream that is associated with said advertisement;
an encryption processor coupled to said message processor and conditioned to encrypt said advertisement cue message using an encryption technique, said encrypted advertisement cue message masks said insertion time for said advertisement and prevents automatically skipping of said advertisement data; and
an encoder coupled to said encryption processor, said encryption processor encoding a modified broadcast datastream including said encrypted advertisement cue message and program data from a content provider.
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Abstract
An apparatus and method for encoding and decoding a broadcast data stream that includes encrypted advertisement cue messages. The encrypted advertisement cue message data representing a advertisement to be inserted into a stream and data representing an insertion time within said broadcast data stream that is associated with said advertisement. The advertisement cue messages are encrypted and encrypted using a encryption technique. The encrypted advertisement cue message masks the insertion time for the advertisement and prevents automatically skipping of the advertisement data.
55 Citations
19 Claims
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1. An apparatus for encoding a broadcast data stream comprising:
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a message processor that generates an advertisement cue message including data representing a advertisement to be inserted into a stream and data representing an insertion time within said broadcast data stream that is associated with said advertisement; an encryption processor coupled to said message processor and conditioned to encrypt said advertisement cue message using an encryption technique, said encrypted advertisement cue message masks said insertion time for said advertisement and prevents automatically skipping of said advertisement data; and an encoder coupled to said encryption processor, said encryption processor encoding a modified broadcast datastream including said encrypted advertisement cue message and program data from a content provider. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for decoding a broadcast data stream comprising:
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a receiver for receiving a broadcast data stream that includes encrypted advertisement cue messages, said encrypted advertisement cue messages including; data representing a advertisement to be inserted into a stream, and data representing an insertion time within said broadcast data stream that is associated with said advertisement; a decryption processor coupled to said receiver, the decryption processor decrypting said advertisement cue message using a decryption key, said decrypted advertisement cue message identifying said insertion time for said advertisement, and enabling a display of said advertisement data; and an decoder coupled to said decryption processor and conditioned to decode said broadcast data stream including said encrypted advertisement cue message and program data from a content provider. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method of encoding a broadcast data stream comprising the activities of:
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generating an advertisement cue message by a message processor, the advertisement cue message including; data representing a advertisement to be inserted into a stream, and data representing an insertion time within said broadcast data stream that is associated with said advertisement; encrypting said advertisement cue message by an encryption processor using a encryption technique, said encrypted advertisement cue message masks said insertion time for said advertisement and prevents automatically skipping of said advertisement data; and encoding a modified broadcast data stream including said encrypted advertisement cue message and program data from a content provider. - View Dependent Claims (17)
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18. A method of decoding a broadcast data stream comprising:
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receiving a broadcast data stream that includes encrypted advertisement cue messages, said encrypted advertisement cue messages including data representing a advertisement to be inserted into a stream and data representing an insertion time within said broadcast data stream that is associated with said advertisement; decrypting said advertisement cue message using a decryption key by a decryption processor, said decrypted advertisement cue message identifying said insertion time for said advertisement and enabling a display of said advertisement data; and decoding said broadcast data stream including said encrypted advertisement cue message and program data from a content provider. - View Dependent Claims (19)
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Specification