Digital Content Protection Over Audio Return Data Link
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United States of America Patent
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app pub date -
Dec 7, 2015
filing date -
Dec 9, 2014
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Published
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Abstract
Embodiments relate to inserting a preamble code as a preamble of a sub-frame of encrypted data to indicate rekeying is to be performed at a source device and to indicate data of the sub-frame and subsequent sub-frames is encrypted. A sink device authenticates a source device using an authentication and encryption protocol. The sink device receives a data stream including audio data. At least a portion of the received audio data is encrypted and the encrypted audio data is packetized into sub-frames. The sink device inserts a first preamble code as a preamble of a sub-frame to indicate rekeying is to be performed at the source device according to the authentication and encryption protocol, and to indicate that the audio data in a payload of the sub-frame and payloads of subsequent sub-frames is encrypted. The sink device transmits the packet to the source device via a first data link.
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Patent Owner(s)
Patent Owner | Address | |
---|---|---|
LATTICE SEMICONDUCTOR CORPORATION | 5555 NE MOORE CT HILLSBORO OR 97124 |
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- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Choi, Hoon | Mountain View, US | 251 | 2035 |
Yi, Ju Hwan | Sunnyvale, US | 26 | 121 |
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