US 12,155,886 B2
Efficient media stream encryption providing full content protection
Amit Kumar, Whitefield (IN); Ankit Gandhi, Karnataka (IN); and Himanshu Jain, Karnataka (IN)
Assigned to DISH Network Technologies India Private Limited, Bengaluru (IN)
Filed by DISH Network Technologies India Private Limited, Bengaluru (IN)
Filed on Mar. 31, 2022, as Appl. No. 17/710,384.
Claims priority of application No. 202241007139 (IN), filed on Feb. 10, 2022.
Prior Publication US 2023/0252110 A1, Aug. 10, 2023
Int. Cl. H04N 21/426 (2011.01); G06F 21/10 (2013.01); G06F 21/60 (2013.01); H04N 21/4408 (2011.01)
CPC H04N 21/4263 (2013.01) [G06F 21/602 (2013.01); H04N 21/4408 (2013.01); G06F 21/1062 (2023.08)] 19 Claims
OG exemplary drawing
 
1. A media encryption system, comprising:
a media input interface, wherein the media input interface is configured to receive an audio stream and a video stream;
a packet sorter that:
bifurcates an I-frame into an I-frame header and an I-frame payload;
groups audio packets from the audio stream and the I-frame header, without the I-frame payload; and
groups at least one P-Frame and the I-frame payload, without the I-frame header, to create an unencrypted media chunk;
an encryption engine that encrypts the grouped audio packets and a the I-frame header to create an encrypted media chunk; and
a media output interface that outputs an output media stream, comprising: the encrypted media chunk and the unencrypted media chunk.