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:
Nov. 30, 2010
Filed:
May. 23, 2005
Xuemin Chen, San Diego, CA (US);
Iue-shuenn Chen, San Diego, CA (US);
Shee-yen Tan, Walnut, CA (US);
Hongbo Zhu, San Diego, CA (US);
Qiang YE, Tustin, CA (US);
Xuemin Chen, San Diego, CA (US);
Iue-Shuenn Chen, San Diego, CA (US);
Shee-Yen Tan, Walnut, CA (US);
Hongbo Zhu, San Diego, CA (US);
Qiang Ye, Tustin, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
In multimedia systems requiring secure access, a method and apparatus for constructing an access control matrix for a set-top box security processor are provided. A security processor may comprise multiple security components and may support multiple user modes. For each user mode supported, at least one access rule table may be generated to indicate access rules to a security component in the security processor. An access control list comprises information regarding the access rules for a particular user mode to the security components in the security processor. An access control matrix may be generated based on the access control lists for the user modes supported by the security component. The access control matrix may be implemented and/or stored in the security processor for verifying access rights of a user mode.