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:
Apr. 13, 2010
Filed:
Apr. 21, 2005
Andrew D. Padawer, Sammamish, WA (US);
Katharine O. Holdsworth, Kirkland, WA (US);
Miguel A. Claudio, Redmond, WA (US);
Scott R. Shell, Kirkland, WA (US);
William E. Stelzel, Issaquah, WA (US);
Andrew D. Padawer, Sammamish, WA (US);
Katharine O. Holdsworth, Kirkland, WA (US);
Miguel A. Claudio, Redmond, WA (US);
Scott R. Shell, Kirkland, WA (US);
William E. Stelzel, Issaquah, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
A pluggable file-based DRM (digital rights management) API (application program interface) layer for applications and engines. The invention defines a pluggable file-based DRM API layer such that mobile operators can choose to use any file-based DRM (FDRM) engine in their final product. An FDRM engine can be content agnostic (e.g., can range from an executable to a media file or ring-tone). In accordance with the invention, an application can become DRM aware by calling the novel file-based DRM APIs. Any FDRM engine can be plugged into the novel API layer such that applications can use the protected content. The API layer of the subject invention can be designed such that applications that are DRM aware by using the file-based DRM API layer can be DRM engine agnostic.