The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 2013
Filed:
May. 25, 2007
John Mitchell Walker, Duval, WA (US);
Paul L. Bleisch, Sammamish, WA (US);
Thomas Wayne Miller, Jr., Redmond, WA (US);
Matthew Picioccio, Sammamish, WA (US);
Shawn Hargreaves, Redmond, WA (US);
John Mitchell Walker, Duval, WA (US);
Paul L. Bleisch, Sammamish, WA (US);
Thomas Wayne Miller, Jr., Redmond, WA (US);
Matthew Picioccio, Sammamish, WA (US);
Shawn Hargreaves, Redmond, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Mechanisms are disclosed that allow for execution of unsigned content and the securing of resources in a closed system when such unsigned content is executing on the system. For example, an application programming interface is used between an access layer implementing unsigned content and an operating system of the closed system. The application programming interface may have sub-interfaces that correspond to sub-layers of the access layer, including a graphics sub-interface, an audio sub-interface, an input sub-interface, and a storage sub-interface. These sub-interfaces present access calls made by the sub-layers to the protected resources of the closed system. By providing the application programming interface, unsigned content, e.g., video games can run on a closed system that is typically designed to run only signed content.