Receiver device for star pattern partial encryption
First Claim
1. A television set-top box, comprising:
- a television receiver receiving a digital television signal comprising;
a plurality of unencrypted packets; and
a plurality of encrypted packets, wherein the encrypted packets are of at least one selected packet type and the at least one selected packet type comprises packets occurring in a star pattern situated at an upper center of an image where the star pattern has rays extending horizontally or vertically across a full width of the image;
a decrypter that decrypts the encrypted packets; and
a decoder that decodes the unencrypted packets and the decrypted packets to produce a signal suitable for play on a television set.
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Accused Products
Abstract
A television signal receiver device consistent with certain embodiments has a receiver that receives a digital television signal including a plurality of unencrypted packets, and a plurality of encrypted packets, wherein the encrypted packets are of at least one selected packet type. The at least one selected packet type has packets occurring in a star pattern approximately situated at an upper center of an image. A decrypter decrypts the encrypted packets. A decoder decodes the unencrypted packets and the decrypted packets to produce a signal suitable for play on a television set. This abstract should not be considered limiting since embodiments consistent with the present invention may involve more, different or fewer elements.
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Citations
23 Claims
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1. A television set-top box, comprising:
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a television receiver receiving a digital television signal comprising; a plurality of unencrypted packets; and a plurality of encrypted packets, wherein the encrypted packets are of at least one selected packet type and the at least one selected packet type comprises packets occurring in a star pattern situated at an upper center of an image where the star pattern has rays extending horizontally or vertically across a full width of the image; a decrypter that decrypts the encrypted packets; and a decoder that decodes the unencrypted packets and the decrypted packets to produce a signal suitable for play on a television set. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A television signal receiver device, comprising:
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a television receiver receiving a digital television signal comprising; a plurality of unencrypted packets; and a plurality of encrypted packets, wherein the encrypted packets are of at least one selected packet type and the at least one selected packet type comprises packets occurring in a star pattern situated at an upper center of an image where the star pattern has rays extending horizontally or vertically across a full width of the image; a decrypter that decrypts the encrypted packets; and a decoder that decodes the unencrypted packets and the decrypted packets to produce a signal suitable for play on a television set. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A television signal receiver device, comprising:
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A television receiver receiving a digital television signal comprising; a plurality of unencrypted packets; and a plurality of encrypted packets, wherein the encrypted packets are of at least one selected packet type and the at least one selected packet type comprises packets occurring in a star pattern situated at an upper center of an image, wherein the star pattern has a rectangular central region centered approximately one slice above a center of the image centered above a true center of the image and wherein the star pattern has rays extending horizontally across a full width of the image, and wherein the star pattern has rays extending vertically across a full height of the image; a decrypter that decrypts the encrypted packets; and a decoder that decodes the unencrypted packets and the decrypted packets to produce a signal suitable for play on a television set. - View Dependent Claims (14)
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15. A television set-top box, comprising:
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a receiver receiving a digital television signal comprising; a plurality of unencrypted packets; a plurality of encrypted packets, wherein the encrypted packets are of at least one selected packet type and the at least one selected packet type comprises packets occurring in a star pattern situated at an upper center of an image; wherein a video frame comprises 30 slices each having 33 macroblocks, and wherein the star pattern is defined by;
macroblocks 14-21 in slices 1-6 and 22-30, macroblocks 11-23 of slices 7-12 and 19-21 and macroblocks 1-33 of slices 13-18;a decrypter that decrypts the encrypted packets; and a decoder that decodes the unencrypted packets and the decrypted packets to produce a signal suitable for play on a television set.
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16. A television set-top box, comprising:
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a receiver receiving a digital television signal comprising; a plurality of unencrypted packets; a plurality of encrypted packets, wherein the encrypted packets are of at least one selected packet type and the at least one selected packet type comprises packets occurring in a star pattern situated at an upper center of an image; wherein a video frame comprises 45 slices each having 80 macroblocks, and wherein the star pattern is defined by;
macroblocks 34-51 in slices 1-9 and 32-45, macroblocks 26-56 of slices 10-18 and 28-31 and macroblocks 1-80 of slices 19-27;a decrypter that decrypts the encrypted packets; and a decoder that decodes the unencrypted packets and the decrypted packets to produce a signal suitable for play on a television set.
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17. A television set-top box, comprising:
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a receiver receiving a digital television signal comprising; a plurality of unencrypted packets; a plurality of encrypted packets, wherein the encrypted packets are of at least one selected packet type and the at least one selected packet type comprises packets occurring in a star pattern situated at an upper center of an image; wherein a video frame comprises 68 slices each having 120 macroblocks, and wherein the star pattern is defined by;
macroblocks 50-77 in slices 1-12 and 49-60, macroblocks 40-84 of slices 13-27 and 42-48 and macroblocks 1-120 of slices 28-41;a decrypter that decrypts the encrypted packets; and a decoder that decodes the unencrypted packets and the decrypted packets to produce a signal suitable for play on a television set.
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18. A television signal receiver device, comprising:
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a television receiver receiving a digital television signal comprising; a plurality of unencrypted packets; and a plurality of encrypted packets, wherein the encrypted packets are of at least one selected packet type and the at least one selected packet type comprises packets occurring in a star pattern situated at an upper center of an image; wherein a video frame comprises 30 slices each having 33 macroblocks, and wherein the star pattern is defined by;
macroblocks 14-21 in slices 1-6 and 22-30, macroblocks 11-23 of slices 7-12 and 19-21 and macroblocks 1-33 of slices 13-18;a decrypter that decrypts the encrypted packets; and a decoder that decodes the unencrypted packets and the decrypted packets to produce a signal suitable for play on a television set.
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19. A television signal receiver device, comprising:
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a television receiver receiving a digital television signal comprising; a plurality of unencrypted packets; and a plurality of encrypted packets, wherein the encrypted packets are of at least one selected packet type and the at least one selected packet type comprises packets occurring in a star pattern situated at an upper center of an image; wherein a video frame comprises 45 slices each having 80 macroblocks, and wherein the star pattern is defined by;
macroblocks 34-51 in slices 1-9 and 39-45 macroblocks 26-56 of slices 10-18 and 28-31 and macroblocks 1-80 of slices 19-27;a decrypter that decrypts the encrypted packets; and a decoder that decodes the unencrypted packets and the decrypted packets to produce a signal suitable for play on a television set.
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20. A television signal receiver device, comprising:
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a television receiver receiving a digital television signal comprising; a plurality of unencrypted packets; and a plurality of encrypted packets, wherein the encrypted packets are of at least one selected packet type and the at least one selected packet type comprises packets occurring in a star pattern situated at an upper center of an image; wherein a video frame comprises 68 slices each having 120 macroblocks, and wherein the star pattern is defined by;
macroblocks 50-77 in slices 1-12 and 49-60, macroblocks 40-84 of slices 13-27 and 42-48 and macroblocks 1-120 of slices 28-41;a decrypter that decrypts the encrypted packets; and a decoder that decodes the unencrypted packets and the decrypted packets to produce a signal suitable for play on a television set.
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21. A television signal receiver device, comprising:
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A television receiver receiving a digital television signal comprising; a plurality of unencrypted packets; and a plurality of encrypted packets, wherein the encrypted packets are of at least one selected packet type and the at least one selected packet type comprises packets occurring in a star pattern situated at an upper center of an image, wherein the star pattern has a rectangular central region centered approximately one slice above a center of the image centered above a true center of the image and wherein the star pattern has rays extending horizontally across a full width of the image, and wherein the star pattern has rays extending vertically across a full height of the image; wherein a video frame comprises 30 slices each having 33 macroblocks, and wherein the star pattern is defined by;
macroblocks 14-21 in slices 1-6 and 22-30, macroblocks 11-23 of slices 7-12 and 19-21 and macroblocks 1-33 of slices 13-18;a decrypter that decrypts the encrypted packets; and a decoder that decodes the unencrypted packets and the decrypted packets to produce a signal suitable for play on a television set.
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22. A television signal receiver device, comprising:
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A television receiver receiving a digital television signal comprising; a plurality of unencrypted packets; and a plurality of encrypted packets, wherein the encrypted packets are of at least one selected packet type and the at least one selected packet type comprises packets occurring in a star pattern situated at an upper center of an image, wherein the star pattern has a rectangular central region centered approximately one slice above a center of the image centered above a true center of the image and wherein the star pattern has rays extending horizontally across a full width of the image, and wherein the star pattern has rays extending vertically across a full height of the image; wherein a video frame comprises 45 slices each having 80 macroblocks, and wherein the star pattern is defined by;
macroblocks 34-51 in slices 1-9 and 32-45, macroblocks 26-56 of slices 10-18 and 28-31 and macroblocks 1-80 of slices 19-27;a decrypter that decrypts the encrypted packets; and a decoder that decodes the unencrypted packets and the decrypted packets to produce a signal suitable for play on a television set.
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23. A television signal receiver device, comprising:
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A television receiver receiving a digital television signal comprising; a plurality of unencrypted packets; and a plurality of encrypted packets, wherein the encrypted packets are of at least one selected packet type and the at least one selected packet type comprises packets occurring in a star pattern situated at an upper center of an image, wherein the star pattern has a rectangular central region centered approximately one slice above a center of the image centered above a true center of the image and wherein the star pattern has rays extending horizontally across a full width of the image, and wherein the star pattern has rays extending vertically across a full height of the image; wherein a video frame comprises 68 slices each having 120 macroblocks, and wherein the star pattern is defined by;
macroblocks 50-77 in slices 1-12 and 49-60, macroblocks 40-84 of slices 13-27 and 42-48 and macroblocks 1-120 of slices 28-41;a decrypter that decrypts the encrypted packets; and a decoder that decodes the unencrypted packets and the decrypted packets to produce a signal suitable for play on a television set.
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Specification