ELECTRONIC DEVICE AND METHOD OF TRANSMITTING CONTENT ITEM

摘要

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.

主权项

1. An electronic device configured to transmit a content item comprising video data and audio data, the device comprising:
an encryptor configured to encrypt the video data, by using an encryption system complying with a first standard; a multiplexer configured to generate multiplexed data comprising the video data encrypted by the encryptor and the audio data not subjected to encryption complying with the first standard, the multiplexer being configured to insert a descriptor if copyright protection is required for the video data, the descriptor indicating that the video data is encrypted by using an encryption system complying with the first standard and not indicating that the audio data is encrypted by using an encryption system complying with the first standard; and a transmitter configured to transmit the multiplexed data generated by the multiplexer to an external device via a wireless transmission path, wherein: the external device prohibits copying of both the video data encrypted in accordance with the first standard and the audio data not subjected to encryption complying with the first standard if the descriptor is inserted in the multiplexed data, the descriptor indicating that the video data is encrypted by using the encryption system complying with the first standard and not indicating that the audio data is encrypted by using an encryption system complying with the first standard.