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:
Dec. 27, 2011
Filed:
Jul. 21, 2006
David B. Donahue, Mountain View, CA (US);
David B. Donahue, Mountain View, CA (US);
The DIRECTV Group, Inc., El Segundo, CA (US);
Abstract
A packet containing a request for content is initially received at a content filtering router. The packet comprises a destination Internet Protocol (IP) address of a content server that stores the content and a bogus IP address. It is ascertained that the destination IP address is on a list of approved destination IP address. Alternatively, it is ascertained that the destination IP address is on a list of probably unapproved destination IP addresses and the packet is routed in accordance with an alternative IP address to a content filtering server. In this alternative, at the content filtering server the bogus IP address is used to determine a content filtering category and it is ascertained whether the destination IP address with the content filtering category should be filtered based upon a list of IP addresses and associated content filtering categories.