The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 10, 2019
Filed:
Dec. 07, 2015
Lattice Semiconductor Corporation, Portland, OR (US);
Ju Hwan Yi, Sunnyvale, CA (US);
Hoon Choi, Mountain View, CA (US);
Lattice Semiconductor Corporation, Portland, OR (US);
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.