1
Marcus Peinado, John L Manferdelli, Jeffrey R C Bell: Rendering digital content in an encrypted rights-protected form. Microsoft Corporation, Woodcock Washburn, August 10, 2004: US06775655 (276 worldwide citation)

A rendering application determines that digital content is in an encrypted rights-protected form and invokes a Digital Rights Management (DRM) system which includes a license store having at least one digital license stored therein. Each license corresponds to a piece of digital content and includes ...


2
Marcus Peinado, Rajasekhar Abburi, Arnold N Blinn, Thomas C Jones, John L Manferdelli, Jeffrey R C Bell, Ramaranthnam Venkatesan, Paul England, Mariusz H Jakubowski, Hai Ying: Enforcement architecture and method for digital rights management. Microsoft Corporation, Woodcock Washburn, September 5, 2006: US07103574 (256 worldwide citation)

An enforcement architecture and method for implementing digital rights management are disclosed. Digital content is distributed from a content server to a computing device of a user and received, and an attempt is made to render the digital content by way of a rendering application. The rendering ap ...


3
Marcus Peinado, Rajasekhar Abburi, Jeffrey R C Bell: Structural of digital rights management (DRM) system. Microsoft Corporation, Woodcock Washburn, April 4, 2006: US07024393 (206 worldwide citation)

A digital rights management (DRM) system operates on a computing device when a user requests that a protected piece of digital content be rendered by the computer device in a particular manner. The DRM system has a license store, a license evaluator, and a state store. The license store stores digit ...


4
Marcus Peinado, Rajasekhar Abburi, Paul England, Krishnamurthy Ganesan, Jeffrey R C Bell, Arnold N Blinn, Thomas C Jones: Digital license and method for obtaining/providing a digital license. Microsoft Corporation, Woodcock Washburn, November 14, 2006: US07136838 (164 worldwide citation)

To obtain a digital license for rendering a piece of digital content, a license requester contacts a license provider and sends a license request. The license provider checks the license request for validity and negotiates with the license requestor terms and conditions for the requested license. Th ...


5
Marcus Peinado, Rajasekhar Abburi, Arnold N Blinn, Thomas C Jones, John L Manferdelli, Jeffrey R C Bell, Ramaranthnam Venkatesan, Paul England, Mariusz H Jakubowski, Hai Ying: Method for obtaining a black box for performing decryption and encryption functions in a digital rights management (DRM) system. Microsoft Corporation, Woodcock Washburn, May 23, 2006: US07051005 (59 worldwide citation)

A digital rights management (DRM) system operates on a computing device and requires a black box for performing decryption and encryption functions. To obtain the black box from a black box server, the DRM system requests such black box from such black box server. The black box server in response ge ...


6
Marcus Peinado, Rajasekhar Abburi, Arnold N Blinn, Thomas C Jones, Jeffrey R C Bell: Structure of a digital content package. Microsoft Corporation, Woodcock Washburn, June 3, 2008: US07383205 (56 worldwide citation)

A digital content package includes encrypted digital content to be rendered in accordance with a corresponding digital license and is separate and apart from the license. The encrypted digital content is decrypt-able according to a decryption key (KD) obtained from the license. The package also incl ...


7
Marcus Peinado, Rajasekhar Abburi, Jeffrey R C Bell: Specifying security for an element by assigning a scaled value representative of the relative security thereof. Microsoft Corporation, Woodcock Washburn, December 7, 2004: US06829708 (51 worldwide citation)

To determine whether digital content can be released to an element such as a computer application or module, a scaled value representative of the relative security of the element is associated therewith, and the digital content has a corresponding digital license setting forth a security requirement ...


8
Marcus Peinado, Rajasekhar Abburi, Jeffrey R C Bell: Specifying security for an element by assigning a scaled value representative of the relative security thereof. Microsoft Corporation, Woodcock Washburn, May 5, 2009: US07529927 (11 worldwide citation)

To determine whether digital content can be released to an element such as a computer application or module, a scaled value representative of the relative security of the element is associated therewith, and the digital content has a corresponding digital license setting forth a security requirement ...


9
Marcus Peinado, Rajasekhar Abburi, Jeffrey R C Bell: Specifying security for an element by assigning a scaled value representative of the relative security thereof. Microsoft Corporation, Woodcock Washburn, July 13, 2010: US07757077 (6 worldwide citation)

To determine whether digital content can be released to an element such as a computer application or module, a scaled value representative of the relative security of the element is associated therewith, and the digital content has a corresponding digital license setting forth a security requirement ...


10
Marcus Peinado, Rajasekhar Abburi, Jeffrey R C Bell: Specifiying security for an element by assigning a scaled value representative of the relative security thereof. Microsoft Corporation, Woodcock Washburn, August 23, 2011: US08005757 (5 worldwide citation)

To determine whether digital content can be released to an element such as a computer application or module, a scaled value representative of the relative security of the element is associated therewith, and the digital content has a corresponding digital license setting forth a security requirement ...