US 11,868,170 B2
Simple nonautonomous peering media clone detection
Aaron Marking, Portland, OR (US); Kenneth Goeller, Los Angeles, CA (US); and Jeffrey Bruce Lotspiech, Henderson, NV (US)
Assigned to Warner Bros. Entertainment Inc., Burbank, CA (US)
Filed by Warner Bros. Entertainment Inc., Burbank, CA (US)
Filed on Aug. 10, 2020, as Appl. No. 16/989,668.
Application 16/989,668 is a continuation of application No. 12/839,105, filed on Jul. 19, 2010, granted, now 10,740,453.
Claims priority of provisional application 61/226,421, filed on Jul. 17, 2009.
Prior Publication US 2020/0372146 A1, Nov. 26, 2020
Int. Cl. G06F 21/44 (2013.01); H04L 9/40 (2022.01); H04K 1/00 (2006.01); H04L 67/06 (2022.01); H04L 67/1074 (2022.01); G06F 21/10 (2013.01); H04L 67/104 (2022.01)
CPC G06F 21/44 (2013.01) [G06F 21/10 (2013.01); H04K 1/00 (2013.01); H04L 63/0428 (2013.01); H04L 67/06 (2013.01); H04L 67/108 (2013.01); H04L 67/104 (2013.01); H04L 2209/60 (2013.01)] 47 Claims
OG exemplary drawing
 
1. A method of validating a content memory device communicatively coupleable with a playback device, comprising:
reading a unique data pattern from a region of the content memory device, the region having content memory device inherent random physical manufacturing defects identified in a defect map, the unique data pattern being a first data pattern written to the region and altered by the content memory device inherent random physical manufacturing defects in the region identified in the defect map;
validating the content memory device based at least in part upon the unique data pattern, the written data pattern, and the defect map; and
wherein the written data pattern is also stored in a device memory within the playback device and validating the content memory device comprises accessing the device memory within the playback device to retrieve the stored data pattern.