System and method for controlling broadcast multimedia using plural wireless network connections
First Claim
Patent Images
1. A communication system, comprising:
- at least a broadcast center wirelessly broadcasting at least one multimedia stream over a wireless broadcast link to at least one wireless receiver and providing control data associated with the multimedia stream over a bidirectional wireless link to the at least one wireless receiver, wherein the control data provided over the bidirectional wireless link includes at least one key useful in decrypting the multimedia stream and further includes data useful for de-interleaving, decompressing, and decoding the at least one multimedia stream.
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Abstract
Digital multimedia is broadcast to wireless receivers on a unidirectional wireless broadcast channel, while control data necessary for presentation of the multimedia is provided on a bidirectional, point-to-point wireless link.
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Citations
38 Claims
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1. A communication system, comprising:
at least a broadcast center wirelessly broadcasting at least one multimedia stream over a wireless broadcast link to at least one wireless receiver and providing control data associated with the multimedia stream over a bidirectional wireless link to the at least one wireless receiver, wherein the control data provided over the bidirectional wireless link includes at least one key useful in decrypting the multimedia stream and further includes data useful for de-interleaving, decompressing, and decoding the at least one multimedia stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for providing a multimedia stream to a wireless communication device, comprising:
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broadcasting the multimedia stream over a wireless broadcast channel; and transmitting, over a bidirectional wireless link, control data necessary for displaying the multimedia stream on the wireless communication device, wherein the control data transmitted over the bidirectional wireless link includes at least one key useful in decrypting the multimedia stream and further includes data useful for de-interleaving, decompressing, and decoding the multimedia stream.
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18. A wireless client station capable of communicating using at least two communication links, comprising:
at least one processor receiving a digital multimedia stream received on a broadcast channel and control data received on a bidirectional wireless link, wherein the at least one processor uses the control data received over the bidirectional wireless link to enable presentation of the multimedia stream on a display and the control data includes at least one key useful in decrypting the multimedia stream and further includes data useful for de-interleaving, decompressing, and decoding the digital multimedia stream.
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19. An apparatus for providing a multimedia stream to a wireless communication device, the apparatus comprising:
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means for broadcasting the multimedia stream over a wireless broadcast channel; and means for transmitting, over a bidirectional wireless link, control data necessary for displaying the multimedia stream on the wireless communication device, wherein the control data transmitted over the bidirectional wireless link includes at least one key useful in decrypting the multimedia stream and further includes data useful for de-interleaving, decompressing, and decoding the multimedia stream.
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20. A communication system, comprising:
at least a broadcast center wirelessly broadcasting at least one multimedia stream over a wireless broadcast link to at least one wireless receiver and providing control data associated with the multimedia stream over a bidirectional wireless link to the at least one wireless receiver, wherein the control data provided over the bidirectional wireless link includes at least one key useful in decrypting the multimedia stream and further includes data useful for decompressing the at least one multimedia stream. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method for providing a multimedia stream to a wireless communication device, comprising:
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broadcasting the multimedia stream over a wireless broadcast channel; and transmitting, over a bidirectional wireless link, control data necessary for displaying the multimedia stream on the wireless communication device, wherein the control data transmitted over the bidirectional wireless link includes at least one key useful in decrypting the multimedia stream and further includes data useful for decompressing the multimedia stream.
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37. A wireless client station capable of communicating using at least two communication links, comprising:
at least one processor receiving a digital multimedia stream received on a broadcast channel and control data received on a bidirectional wireless link, wherein the at least one processor uses the control data received over the bidirectional wireless link to enable presentation of the multimedia stream on a display and the control data includes at least one key useful in decrypting the multimedia stream and further includes data useful for decompressing the digital multimedia stream.
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38. An apparatus for providing a multimedia stream to a wireless communication device, the apparatus comprising:
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means for broadcasting the multimedia stream over a wireless broadcast channel; and means for transmitting, over a bidirectional wireless link, control data necessary for displaying the multimedia stream on the wireless communication device, wherein the control data transmitted over the bidirectional wireless link includes at least one key useful in decrypting the multimedia stream and further includes data useful for decompressing the multimedia stream.
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Specification