Yan Chen

US Patent:

20100034098, Feb 11, 2010

Filed:

Aug 5, 2008

Appl. No.:

12/186096

Inventors:

Jia Wang - Randolph NJ, US
Yan Chen - Glenview IL, US
Dan Pei - Jersey City NJ, US
Yao Zhao - Chicago IL, US
Zhaosheng Zhu - Evanston IL, US

Assignee:

AT&T INTELLECTUAL PROPERTY I, LP - Reno NV

International Classification:

G06F 11/30

US Classification:

370242

Abstract:

A system and methods are disclosed that provide a continuous monitoring and diagnosis system for ISP IP/VPN backboneExt networks. The system includes two phases: 1) a monitor setup phase which selects candidate routers as monitors and the paths to be measured by the monitors, and 2) a continuous monitoring and diagnosis phase.

US Patent:

20180189560, Jul 5, 2018

Filed:

Dec 29, 2016

Appl. No.:

15/393362

Inventors:

- New York NY, US
Yan CHEN - Montville NJ, US

International Classification:

G06K 9/00

Abstract:

There is provided a method to identify structure of a native PDF document. The method comprises: obtaining a native PDF document having a first line to start a table and a second line to end the table; detecting a value of a physical feature of the native PDF document, wherein the physical feature has a corresponding weighting factor; initiating a value to the weighting factor; assigning a first status for the first line and a second status for the second line based on (a) the physical feature and (b) the weighting factor; and identifying a location of the table on native PDF document from the first status and the second status, thus yielding an identified location of the table.