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. 10, 2012
Filed:
Dec. 30, 2004
John I. Okimoto, San Diego, CA (US);
Bridget D. Kimball, Encinitas, CA (US);
Annie O. Chen, Del Mar, CA (US);
Michael T. Habrat, San Diego, CA (US);
Douglas M. Petty, San Diego, CA (US);
Eric Sprunk, Carlsbad, CA (US);
Lawrence W. Tang, San Diego, CA (US);
John I. Okimoto, San Diego, CA (US);
Bridget D. Kimball, Encinitas, CA (US);
Annie O. Chen, Del Mar, CA (US);
Michael T. Habrat, San Diego, CA (US);
Douglas M. Petty, San Diego, CA (US);
Eric Sprunk, Carlsbad, CA (US);
Lawrence W. Tang, San Diego, CA (US);
General Instrument Corporation, Horsham, PA (US);
Abstract
The present invention discloses an apparatus and method for defining and enforcing rules of transition between two security domains, e.g., a transport domain and a persistent security domain. In turn, a border guard, e.g., a security device, is provided between these two domains that enforce rules for transition between the two security domains. This novel approach of defining a transport domain and a persistent security domain simplifies the classification of the digital content and its movement through the system. Namely, the border guard once established between the two systems can enforce DRM rules associated with how contents are moved between the two domains.