Jeffrey B Bell

US Patent:

20030078853, Apr 24, 2003

Filed:

Jul 29, 2002

Appl. No.:

10/208139

Inventors:

Marcus Peinado - Bellevue WA, US
Rajasekhar Abburi - Medina WA, US
Arnold Blinn - Bellevue WA, US
Thomas Jones - Redmond WA, US
John Manferdelli - Redmond WA, US
Jeffrey Bell - Seattle WA, US
Paul England - Bellevue WA, US
Mariusz Jakubowski - Bellevue WA, US
Hai Yu - Bellevue WA, US

International Classification:

G06F017/60

US Classification:

705/026000

Abstract:

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 application invokes a Digital Rights Management (DRM) system, and such DRM system determines whether a right to render the digital content in the manner sought exists based on any digital license stored in the computing device and corresponding to the digital content. If the right does not exist, a digital license that provides such right and that corresponds to the digital content is requested from a license server, and the license server issues the digital license to the DRM system. The computing device receives the issued digital license and stores the received digital license thereon.

US Patent:

20050091169, Apr 28, 2005

Filed:

Nov 5, 2004

Appl. No.:

10/982578

Inventors:

Marcus Peinado - Bellevue WA, US
Rajasekhar Abburi - Medina WA, US
Jeffrey Bell - Seattle WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

H04L009/00

US Classification:

705059000

Abstract:

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. The security requirement is obtained from the digital license and the scaled value is obtained from the element, and the scaled value of the element is compared to the security requirement of the digital license to determine whether the scaled value satisfies the security requirement. The digital content is not released to the element if the scaled value does not satisfy the security requirement.

US Patent:

20050091541, Apr 28, 2005

Filed:

Nov 3, 2004

Appl. No.:

10/980743

Inventors:

Marcus Peinado - Bellevue WA, US
Rajasekhar Abburi - Medina WA, US
Jeffrey Bell - Seattle WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F011/30
H04L009/00

US Classification:

713201000, 713156000

Abstract:

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. The security requirement is obtained from the digital license and the scaled value is obtained from the element, and the scaled value of the element is compared to the security requirement of the digital license to determine whether the scaled value satisfies the security requirement. The digital content is not released to the element if the scaled value does not satisfy the security requirement.

US Patent:

20050097368, May 5, 2005

Filed:

Nov 5, 2004

Appl. No.:

10/983040

Inventors:

Marcus Peinado - Bellevue WA, US
Rajasekhar Abburi - Medina WA, US
Jeffrey Bell - Seattle WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F012/14
H04L009/00

US Classification:

713201000, 713166000, 713193000

Abstract:

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. The security requirement is obtained from the digital license and the scaled value is obtained from the element, and the scaled value of the element is compared to the security requirement of the digital license to determine whether the scaled value satisfies the security requirement. The digital content is not released to the element if the scaled value does not satisfy the security requirement.

US Patent:

20060167814, Jul 27, 2006

Filed:

Mar 24, 2006

Appl. No.:

11/388365

Inventors:

Marcus Peinado - Bellevue WA, US
Rajasekhar Abburi - Medina WA, US
Paul England - Bellevue WA, US
Krishnamurthy Ganesan - Redmond WA, US
Jeffrey Bell - Seattle WA, US
Arnold Blinn - Bellevue WA, US
Thomas Jones - Sammamish WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06Q 99/00

US Classification:

705059000

Abstract:

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 application invokes a Digital Rights Management (DRM) system, and such DRM system determines whether a right to render the digital content in the manner sought exists based on any digital license stored in the computing device and corresponding to the digital content. If the right does not exist, a digital license that provides such right and that corresponds to the digital content is requested from a license server, and the license server issues the digital license to the DRM system. The computing device receives the issued digital license and stores the received digital license thereon.

US Patent:

20060167815, Jul 27, 2006

Filed:

Mar 24, 2006

Appl. No.:

11/388403

Inventors:

Marcus Peinado - Bellevue WA, US
Rajasekhar Abburi - Medina WA, US
Paul England - Bellevue WA, US
Krishnamurthy Ganesan - Redmond WA, US
Jeffrey Bell - Seattle WA, US
Arnold Blinn - Bellevue WA, US
Thomas Jones - Sammamish WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06Q 99/00

US Classification:

705059000

Abstract:

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 application invokes a Digital Rights Management (DRM) system, and such DRM system determines whether a right to render the digital content in the manner sought exists based on any digital license stored in the computing device and corresponding to the digital content. If the right does not exist, a digital license that provides such right and that corresponds to the digital content is requested from a license server, and the license server issues the digital license to the DRM system. The computing device receives the issued digital license and stores the received digital license thereon.

US Patent:

20060212363, Sep 21, 2006

Filed:

Feb 13, 2006

Appl. No.:

11/353321

Inventors:

Marcus Peinado - Bellevue WA, US
Rajasekhar Abburi - Medina WA, US
Arnold Blinn - Bellevue WA, US
Thomas Jones - Redmond WA, US
John Manferdelli - Redmond WA, US
Jeffrey Bell - Seattle WA, US
Paul England - Bellevue WA, US
Mariusz Jakubowski - Bellevue WA, US
Hai Yu - Bellevue WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06Q 30/00

US Classification:

705026000

Abstract:

To render digital content determined to be in an encrypted rights-protected form, each available license corresponding to the digital content to be rendered is identified, where each such license includes a decryption key (KD) for decrypting the digital content to be rendered, and where the decryption key (KD) in the license is encrypted according to a public key (PU) (PU(KD)). One of the identified licenses is selected and (KD) is obtained from the selected license by obtaining (PU(KD)) from the selected license and decrypting (PU(KD)) according to a private key (PR) corresponding to (PU) to produce (KD). The digital content is decrypted with (KD), and the decrypted digital content is provided for actual rendering.