US 12,015,808 B2
System and method for identifying encrypted, pre-recorded media content in packet data networks
Yuan Ding, Plainsboro, NJ (US); Natalia Schenck, Dallas, TX (US); Daniel Sanchez, Dunwoody, GA (US); Umut Akyol, Highland Park, NJ (US); Lawrence E. Bakst, Verona, NJ (US); and Vinay Sharma, Queens Village, NY (US)
Assigned to AT&T INTELLECTUAL PROPERTY I, L.P., Atlanta, GA (US)
Filed by AT&T Intellectual Property I, L.P., Atlanta, GA (US)
Filed on Mar. 17, 2023, as Appl. No. 18/185,893.
Application 18/185,893 is a continuation of application No. 17/239,180, filed on Apr. 23, 2021, granted, now 11,665,377.
Prior Publication US 2023/0224513 A1, Jul. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 21/234 (2011.01); G06F 17/15 (2006.01); H04L 67/02 (2022.01); H04N 21/233 (2011.01)
CPC H04N 21/23418 (2013.01) [G06F 17/15 (2013.01); H04L 67/02 (2013.01); H04N 21/233 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device, comprising:
a processing system including a processor; and
a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations comprising:
calculating a segment size for each encrypted audio segment in encrypted audio segments separated from encrypted hypertext transport protocol (HTTPS) traffic carrying media content;
determining one or more indices from a sliding window of a plurality of segment sizes of consecutive encrypted audio segments, wherein the indices are calculated by summing selected segment sizes in plurality of segment sizes and dividing by a total of sizes of the plurality of segment sizes in the sliding window; and
identifying the media content by matching the indices with a reference in a catalog.