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. 24, 2007
Filed:
Dec. 11, 2001
Alireza Dabagh, Kirkland, WA (US);
Aditya Dube, Kirkland, WA (US);
Arvind Murching, Issaquah, WA (US);
Fengfen Liu, Bellevue, WA (US);
Alireza Dabagh, Kirkland, WA (US);
Aditya Dube, Kirkland, WA (US);
Arvind Murching, Issaquah, WA (US);
Fengfen Liu, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Filtering data packets in a manner that promotes efficient flow of data through a communication path. A filter stack includes one or more filter instances that may filter data packets that pass through the filter stack. The filter stack is associated with one or more protocol stacks that function in communication paths between a computing device and a network. When filtering instances are inserted to or removed from a filter stack, associated protocol stacks may remain capable of transferring data. An abstract interface facilitates inserting and removing filter instances by passing data to filter drivers that create filter instances. A filter driver may create multiple filter instances. Filtering operations associated with filter instances may be bypassed based on the direction of data flow, control flow, and characteristics of packets.