Aiguo Fei

US Patent:

7715448, May 11, 2010

Filed:

Jun 6, 2007

Appl. No.:

11/759179

Inventors:

Lebin Cheng - Fremont CA, US
Aiguo Fei - Foster City CA, US

Assignee:

Red Aril, Inc. - San Mateo CA

International Classification:

H04J 3/00
H04J 3/12
H04N 7/10

US Classification:

370528, 370476, 725 32

Abstract:

A network device is deployed in an in-line fashion, preferably at a data traffic point along a network. Depending on the constraints of data packets in a data packet sequence from a website, the network device is configured to modify some of the data packets or fabricate new data packets to embed the selected data in the data packet sequence. By keeping the headers of the data packets substantially identical, changes to a data packet or addition of a new data packet become transparent to users as well as to the website.

US Patent:

7788718, Aug 31, 2010

Filed:

Jun 13, 2002

Appl. No.:

10/171937

Inventors:

Aiguo Fei - San Jose CA, US
Kai Sun - Mountain View CA, US
Fengmin Gong - Livermore CA, US

Assignee:

McAfee, Inc. - Santa Clara CA

International Classification:

G06F 12/14
G06F 12/16
G08B 23/00

US Classification:

726 22, 726 14, 726 23, 726 25

Abstract:

A method of identifying a distributed denial of service attack is described in which a rate profile is determined, where the rate profile corresponds to information transfer rates at which information is received from a network. A burst magnitude threshold based on this rate profile is then established. A burst duration profile characterizing periods of time during which the information transfer rate exceeds this burst magnitude threshold is also calculated, and a burst duration threshold is then defined based upon this burst duration profile. A distributed denial of service attack is identified when the information transfer rate exceeds the burst magnitude threshold for a period of time exceeding the burst duration threshold.

US Patent:

20080306816, Dec 11, 2008

Filed:

Jun 6, 2007

Appl. No.:

11/759187

Inventors:

Michael Matthys - Los Altos Hills CA, US
Lebin Cheng - Fremont CA, US
Aiguo Fei - Foster City CA, US

International Classification:

G06Q 30/00

US Classification:

705 14

Abstract:

Techniques for replacing an advertisement in a webpage from a website with another advertisement are disclosed. A response including the webpage is intercepted in a network device deployed in an in-line fashion, preferably at a data traffic point along a network. When it is determined that the webpage includes an advertisement that is replaceable, a preferable advertisement more correlated to the interests of a user is embedded in data packets to replace those for the original advertisement. Subsequently, the preferable advertisement is served when the webpage is displayed.