Patents by Inventor Yunxian Chu

Yunxian Chu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8139840
    Abstract: An inspection system and method for serial high-speed image data transfer is provided herein. According to one embodiment, the method may include receiving multiple channels of image data at an input data rate and buffering the image data at the input data rate until the buffered data reaches a predetermined size. Once the predetermined size has been reached, the method may include packing the buffered data, encoding the data packet, serializing the encoded data packet and converting the encoded data packet into an optical signal. In some cases, the image data may be packed along with a data header containing information about the system. Once converted, each optical signal (i.e., representing one data packet) may be transmitted serially over one or more fibre channels to a processing node of the inspection system. In most cases, the data is packed, encoded, serialized and transmitted to the processing node at a data rate much higher than the input data rate.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: March 20, 2012
    Assignee: KLA-Tencor Corporation
    Inventors: Yunxian Chu, Alexander Slobodov
  • Patent number: 6744011
    Abstract: The present invention generally relates to a useful online monitoring system and method of user thereof for monitoring a welding process to determine weld quality, weld process stability, and weld geometry for each weld formed during a welding process. More particularly, the online monitoring system has a computer having a graphical user interface (GUI); at least one welding machine; a communication interface for interfacing communication between the at least one welding machine and the computer; a data acquisition system for acquiring welding signal data, the data acquisition system having an associated memory means; a quality management database for managing and storing acquired welding signal data; and a statistical signal processing system in communication with the data acquisition system for processing welding signal data stored in the data acquisition system associated memory means, and in further communication with the communication interface for communicating processed welding signal data to the GUI.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: June 1, 2004
    Assignees: General Motors Corporation, University of Michigan
    Inventors: Shixin Jack Hu, Yunxian Chu, Wenkao Hou, Samuel Paul Marin, Pei-Chung Wang
  • Publication number: 20040099648
    Abstract: The present invention generally relates to a useful online monitoring system and method of user thereof for monitoring a welding process to determine weld quality, weld process stability, and weld geometry for each weld formed during a welding process. More particularly, the online monitoring system has a computer having a graphical user interface (GUI); at least one welding machine; a communication interface for interfacing communication between the at least one welding machine and the computer; a data acquisition system for acquiring welding signal data, the data acquisition system having an associated memory means; a quality management database for managing and storing acquired welding signal data; and a statistical signal processing system in communication with the data acquisition system for processing welding signal data stored in the data acquisition system associated memory means, and in further communication with the communication interface for communicating processed welding signal data to the GUI.
    Type: Application
    Filed: November 26, 2002
    Publication date: May 27, 2004
    Inventors: Shixin Jack Hu, Yunxian Chu, Wenkao Hou, Samuel Paul Marin, Pei-Chung Wang