Disney Enterprises, Inc.

Twentieth Century Fox Film Corporation

Calimetrics, Inc.

Other

Western Digital Technologies, Inc.

Lsi Logic Corporation

Lsi Corporation

Fox Broadcasting Company, LLC

Twentieth Century Fox Home Entertainment LLC

Twentieth Century Fox Corporation

Ian E Harvey

Hanno Basse

Nugroho Suwito

Steven Russel Spielman

David Warland

David C Lee

Ting Zhou

David Blankenbeckler

Terrence L Wong

Judith C Powelson

Jonathan A Zingman

Yung-Cheng Lo

Christine Pepin

Christopher R Odgers

Carlos Frederico Amaral Cid

Matthew Warren Dodd

Greg S Lewis

Joseph Edward Halpern, Iii

Christopher C Tan

There is provided a method for use by a playback system to play back encrypted content associated with a first globally unique identifier (ID). The method includes storing an encrypted content in a memory being under control of a memory controller having a second globally unique ID, storing the first globally unique ID, transmitting a request from the memory controller to a license server, the request comprising the first globally unique ID, the second globally unique ID and a request for a content license to play back the encrypted content, receiving the content license enabling a right for the playback of the encrypted content, the content license including content keys and being encrypted to be decryptable according to a memory controller secret associated with the second globally unique ID, decrypting the content license, according to the memory controller secret to recover the content keys to a playback module.

Method and apparatus for portably binding license rights to content stored on optical media

There is provided a method to playback content in a ROM having a ROM ID. The method includes copying the content from the ROM to a RAM having a RAM ID, copying the ROM ID to a memory accessible to a RAM controller, transmitting a license request from the RAM controller to a license server, the license request comprising a RAM controller ID, the ROM ID and a request for a content license to play back the content from the RAM; receiving the content license including a right for the playback of the content from the RAM, and a content key, decrypting the content license by the RAM controller, according to the RAM controller secret associated with the RAM controller ID, to recover and provide the content key to a playback module, decrypting the content using the content key to generate a decrypted content, and playing back the decrypted content.

A method and system for securely and traceably enabling playing back of content on a playback device of a plurality of playback devices, in which each of the plurality of playback devices comprises a cryptographic function module (CFM). In one embodiment, the method comprises accepting a first input in the playback device from a content licensing agency; generating, in the device, a first output from the first input according to a proprietary cryptographic function using the CFM, the first output necessary to enable playback of the content by the playback device, the proprietary cryptographic function being one of a family of proprietary cryptographic functions executable by the CFM of each of the plurality of playback devices; and enabling the playback of the content by the device at least in part according to the first output.

Method and system for conditional access via license of proprietary functionality

A system, method and apparatus for protecting a media program having a plurality of frames is disclosed. In one embodiment, the method comprises receiving an encrypted plurality of compressed frames in a client device, wherein at least a first portion of the plurality of frames is corrupted before encryption according to one or more corruption operations; decrypting the plurality of compressed frames, decompressing the plurality of compressed frames to recover the plurality of frames, including the first portion of frames corrupted according to the one or more corruption operations, storing the plurality of frames in a frame buffer, extracting the stored plurality of frames from the frame buffer for processing by a graphics processing unit of the client device, at least substantially decorrupting at least some of the corrupted plurality of frames according to one or more decorruption operations in the graphics processing unit, and providing the plurality of frames including the decorrupted plurality of frames for display.

Method and apparatus for protecting data via application of corrupting function and complimentary restitution at video processing endpoints

For securing content accessed from storage device, the storage device is associated with a licensee identifier. The licensee identifier is provided as input to an algorithm that generates, based on the identifier, a determinate set of instructions for a computer, for example, source code in a coding language, compiled binary code, or pseudo code that is capable of being translated into source code. The code, once compiled to machine-usable form, can be executed by a processor to perform a permutation operation that is unique to the licensee identifier. The output of the permutation operation can be used for protecting data provided by the storage device.

Licensable function for securing stored data

A method and system for portably binding license rights to content stored on an optical media is disclosed. Media player controllers include a secret that is used in conjunction with indelible media identifiers and digital certificates provided via a key issuance center to permit decryption of content initially distributed and freely copyable in encrypted form.

Securely storing data to an optical disc has been described, including generating write data that includes the data and overhead data that facilitates reading the data from the disc; and configuring the overhead data according to a key.

Secure data storage

Methods and systems for write compensation for optimizing the performance of a data storage or communication channel are disclosed. In one embodiment, a method comprises determining channel sensitivity to modifications in write signal parameters, detecting systematic errors in a read signal recovered from data written with a first set of write parameters, and adjusting the write signal parameters by an amount determined from the channel sensitivity such that the systematic errors are reduced when data are written with the adjusted write parameters.

Write compensation for data storage and communication systems

A system and method are disclosed for generating a transition in a laser control signal at a precise point in time. A write strategy processor is configured to input a sequence of data and to determine a transition in a laser control signal from the sequence of data. The transition is specified by a number of pulse clock units and a delay. A write pulse generator is configured to input the number of pulse clock units and the delay and to generate a transition by creating a signal having a transition at the time specified by the number of pulse clock units and delaying the transition by the specified delay.

Programmable write signal generator

Growing community of inventors

Lake Forest, CA, United States of America

Ian E Harvey