Patent ID: 11868170
Assignee: WARNER BROS. ENTERTAINMENT INC.
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
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.