08875271 cites 25 patents.

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 access layer is used between an operating system layer of the closed system and the actual unsigned content. This access layer may contain various sub-layers, such as a graphics layer, an audio layer, an input layer, and a storage layer. These layers can control access that the unsigned content can have to the native operating system layers and the associated resources of the closed system. By providing such an access layer, unsigned content, e.g., video games, can run on the closed system that is typically designed to run only signed content.

Title
Executing unsigned content and securing access in a closed system
Application Number
11/636199
Publication Number
8875271 (B2)
Application Date
December 8, 2006
Publication Date
October 28, 2014
Inventor
Paul L Bleisch
Sammamish
WA, US
Thomas Wayne Miller Jr
Redmond
WA, US
Albert Sing Ho
Seattle
WA, US
Ronnie Donnel Yates Jr
Bothell
WA, US
Agent
Micky Minhas
Tim Churna
Assignee
Microsoft Corporation
WA, US
IPC
G06F 3/06
G06F 9/54
G06F 9/46
G08B 13/00
G06F 11/00
G06F 1/26
H04N 7/16
G06F 21/62
G06F 9/455
H04L 29/06
G06F 17/30
G06F 15/16
G06F 7/04
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