Electronic device and method of transmitting content item
First Claim
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1. An electronic apparatus comprising:
- processor circuitry configured to;
establish a key of high-bandwidth digital content protection (HDCP) with a first electronic apparatus;
encrypt a packetized elementary stream (PES) payload for video of audiovisual content to generate encrypted video data in accordance with the HDCP, wherein audio data for audio of the audiovisual content is subject to never copy and is not encrypted; and
multiplex the encrypted video data and the audio data to generate multiplexed data; and
a transmitter configured to transmit the multiplexed data to the first electronic apparatus over a wireless network, and transmit a registration descriptor to the first electronic apparatus over the wireless network, wherein existence of the registration descriptor indicates that the video of the audiovisual content is subject to copyright protection of the HDCP and the audio of the audiovisual content is handled as never copy.
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Abstract
According to one embodiment, an electronic device includes a content transmitter. The content transmitter is configured to output a content item including first data and second data to one transmission path, by applying a first copyright protection system to copyright protection of the first data and applying a second copyright protection system to copyright protection of the second data. The first copyright protection system involves encryption of data to be copyright-protected. The second copyright protection system involves no encryption of data to be copyright-protected.
57 Citations
22 Claims
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1. An electronic apparatus comprising:
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processor circuitry configured to; establish a key of high-bandwidth digital content protection (HDCP) with a first electronic apparatus; encrypt a packetized elementary stream (PES) payload for video of audiovisual content to generate encrypted video data in accordance with the HDCP, wherein audio data for audio of the audiovisual content is subject to never copy and is not encrypted; and multiplex the encrypted video data and the audio data to generate multiplexed data; and a transmitter configured to transmit the multiplexed data to the first electronic apparatus over a wireless network, and transmit a registration descriptor to the first electronic apparatus over the wireless network, wherein existence of the registration descriptor indicates that the video of the audiovisual content is subject to copyright protection of the HDCP and the audio of the audiovisual content is handled as never copy. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An electronic apparatus comprising:
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a receiver configured to; receive multiplexed data comprising (1) encrypted video data comprising a packetized elementary stream (PES) payload for video of audiovisual content encrypted in accordance with the HDCP and (2) audio data for audio of the audiovisual content over a wireless network, wherein a PES payload for the audio of the audiovisual content is not encrypted; and receive a registration descriptor over the wireless network, wherein existence of the registration descriptor indicates that the video of the audiovisual content is subject to copyright protection of the HDCP and the audio of the audiovisual content is handled as never copy; and processor circuitry configured to; decrypt the encrypted video data to generate video data; and handle the audio data as never copy. - View Dependent Claims (8, 9, 10, 11)
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12. A transmission method of an electronic apparatus, the method comprising:
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establishing a key of high-bandwidth digital content protection (HDCP) with a first electronic apparatus; encrypting a packetized elementary stream (PES) payload for video of audiovisual content to generate encrypted video data in accordance with the HDCP, wherein audio data for audio of the audiovisual content is subject to never copy and is not encrypted; multiplexing the encrypted video data and the audio data to generate multiplexed data; and transmitting the multiplexed data and a registration descriptor to the first electronic apparatus over the wireless network, wherein existence of the registration descriptor indicates that the video of the audiovisual content is subject to copyright protection of the HDCP and the audio of the audiovisual content is handled as never copy. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A reception method of an electronic apparatus, the method comprising:
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receiving multiplexed data comprising (1) encrypted video data comprising a packetized elementary stream (PES) payload for video of audiovisual content encrypted in accordance with the HDCP and (2) audio data for audio of the audiovisual content over a wireless network, wherein a PES payload for the audio of the audiovisual content is not encrypted; receiving a registration descriptor over the wireless network, wherein existence of the registration descriptor indicates that the video of the audiovisual content is subject to copyright protection of the HDCP and the audio of the audiovisual content is handled as never copy; decrypting the encrypted video data to generate video data; and handling the audio data as never copy. - View Dependent Claims (19, 20, 21, 22)
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Specification