Simple nonautonomous peering media clone detection
AssigneeWarner Bros. Entertainment Inc.
InventorsAaron Marking, Kenneth Goeller, Jeffrey Bruce Lotspiech
Life of this patent
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Abstract
A playback device includes a port configured to receive content from an external memory device, a device memory residing in the device, and a controller programmed to execute instructions that cause the controller to read a read data pattern from the defined region in the external memory device and determine if the read data pattern correlates to an expected data pattern to a predetermined level, wherein the expected data pattern is derived at least in part from a defect map of the defined region.
Claims18
A system for validating media content, the system comprising a content memory device that is configured to:
- read a unique data pattern written to the content memory device of a validation entity by one of a manufacturer or a content provider, the unique data pattern being altered by known content memory device defects in the content memory device, the known content memory device defects being identified by a defect map that is stored by the validation entity, wherein the unique data pattern is stored in a memory of the content memory device before the content memory device is coupled to a playback device;
- transmit the unique data pattern from the content memory device to the playback device such that the playback device is configured to validate the content memory device based on the unique data pattern and the defect map;
- and
- transmit content from the content memory device and to the playback device, responsive to a validation of the content memory device performed using the transmitted unique data pattern.
A method for securing media content, the method comprising:
- reading a unique data pattern written to a content memory device of a validation entity by one of a manufacturer or a content provider, the unique data pattern being altered by known content memory device defects in the content memory device, the known content memory device defects being identified by a defect map that is stored by the validation entity, wherein the unique data pattern is stored in a memory of the content memory device before the content memory device is coupled to a playback device;
- transmitting the unique data pattern from the content memory device to the playback device such that the playback device is configured to validate the content memory device based on the unique data pattern and the defect map;
- and
- transmitting content from the content memory device and to the playback device, responsive to a validation of the content memory device performed using the transmitted unique data pattern.
A non-transitory computer readable medium having program instructions stored thereon, wherein when executed by a processor, cause the processor to perform operations comprising:
- reading a unique data pattern written to a content memory device of a validation entity by one of a manufacturer or a content provider, the unique data pattern being altered by known content memory device defects in the content memory device, the known content memory device defects being identified by a defect map that is stored by the validation entity, wherein the unique data pattern is stored in a memory of the content memory device before the content memory device is coupled to a playback device;
- transmitting the unique data pattern from the content memory device to the playback device such that the playback device is configured to validate the content memory device based on the unique data pattern and the defect map;
- and
- transmitting content from the content memory device and to the playback device, responsive to a validation of the content memory device performed using the transmitted unique data pattern.
Dependencies are inferred from the claim text.