Yan Qin Chen

US Patent:

20210131308, May 6, 2021

Filed:

Nov 4, 2019

Appl. No.:

16/673141

Inventors:

- Farmington CT, US
Goran Djuknic - New York NY, US
Yan Chen - South Windsor CT, US

International Classification:

F01D 25/16
F16C 19/52

Abstract:

A bearing assembly monitoring system includes a bearing assembly supporting rotation of a rotating member. The bearing assembly includes a fixed portion and rotatable portion. A piezoelectric element is mounted to the fixed portion and generates an electric signal in response to a vibration of the fixed portion. A first transceiver is electrically coupled to the piezoelectric element to receive the electrical signal generated by the piezoelectric element and generate a signal indicative of the vibration of the fixed portion. A gas turbine engine bearing monitoring system and a method are also disclosed.

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.