Microsoft Technology Licensing, LLC

Microsoft Corporation

Scott J Fierstein

Scott Manchester

John Charles Calhoon

James Morris Alkove

Georgios Chrysanthakopoulos

Quintin Swayne Burns

John Carl Simmons

Robert Kilroy Hughes, Jr

Alexandre Vicktorovich Grigorovitch

Geoffrey T Dunbar

Brian Patrick Evans

Ming Ma

Daniel Rosenstein

Matthew C Howard

Matthew L c/o Microsoft Corporation Howard

Jr Hughes Robert Kilroy

Supporting a plurality of content protection systems in a single container file. The protection systems share an encryption method which is accessible from a sample encryption box in the file. Each of the protection systems stores, in a protection system header box, information for decrypting the content in accordance with the corresponding protection system. In some embodiments, separate protection system header boxes in the file correspond to each of the protection systems. By using the common encryption method and sharing encryption expressions across the protection systems, the multiple content protection systems are supported in the file without creating additional copies of the content. In some embodiments, aspects of the disclosure extend the International Organization for Standardization (ISO) base media file format to support multiple digital rights management (DRM) systems in the single container file.

Multiple content protection systems in a file

A personal media player (PMP) uses a digital media processing system&#x2014;comprising a video rendering subsystem, a music rendering subsystem, and a picture rendering subsystem&#x2014;to produce moving-video (video), audio (music), still-graphics (picture), and other output rendered from media files ported to the PMP from another source. The PMP further comprises a user interface system, a display unit system, a power source system, and a data port system utilizing Universal Plug and Play functionality, all of which are coupled directly or indirectly to the digital media processing system. The physical components constituting the aforementioned systems and subsystems are then encased in a portable housing unit suitable for hand-held use and ready portability.

Systems and methods for receiving, storing, and rendering digital video, music, and pictures on a personal media player

A 'managed copy' capability is provided that is both sanctioned and supervised by a service provider so that multimedia content distributed on optical media such as DVD can be copied and used by a client in a controlled manner. In an illustrative example, a content provider generates a fingerprint using heuristics and/or other data that uniquely identifies a multimedia release, like a feature film, as being authorized for copying according to defined usage rules. A managed copy service authorizes the client to make a copy of a source DVD if that source is found to match a stored fingerprint. An identification response, which may include encoding parameters and usage rules, provides confirmation to the client that content on the source DVD is authorized to be copied. The client copies content from the source to another medium in compliance with the identification response.

DVD identification and managed copy authorization

Technology for protecting a digital content including a first content protection system capable of decrypting the digital content, the digital content including an inclusion list; a linkable library providing access for an application to the functionality of the first content protection system, the application including a second content protection system; and a means for evaluating the second content protection system to determine if the second content protection system is on the inclusion list.

Transcryption of digital content between content protection systems

Methods and apparatus are provided for automatically loading drivers on computers for devices coupled to a communication medium such as an IEEE 1394 serial bus. Operating systems running on the computers detect when a device is connected to the communication medium. The operating systems then determine whether one of the drivers stored in memory on the device will enable the computers to utilize the device. The operating systems will then load the appropriate drivers for their respective computers and allow access to the device. If none of the drivers on the memory are suitable for a particular computer, then its operating system will prompt a user to manually insert a computer-readable medium containing the appropriate drivers. Thus, the present invention provides methods and apparatus for automatically loading device drivers.

Device driver auto-load

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Seattle, WA, United States of America

Scott J Fierstein