Patents by Inventor Canh Le

Canh Le 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).

  • Publication number: 20120283873
    Abstract: The present invention discloses a system and method for monitoring and diagnosing a robot mechanism. This requires adding intelligence to the diagnostics by parameters of physical robot arm linkages respecting component relative rotation or load transfer; storing rotation or translation relationship parameters characteristic of resonant frequencies between at least one mechanical link; receiving servo motor signals; digitizing and storing servo known normal data time histories; performing a time domain to frequency domain transformation on signal to identify components which are out-of band limit pre-sets.
    Type: Application
    Filed: May 3, 2011
    Publication date: November 8, 2012
    Inventor: Canh Le
  • Patent number: 7973508
    Abstract: The present invention discloses a system and method for monitoring and diagnosing a robot mechanism. This requires adding intelligence to the diagnostics by parameters of physical robot arm linkages respecting component relative rotation or load transfer; storing rotation or translation relationship parameters characteristic of resonant frequencies between at least one mechanical link; receiving servo motor signals; digitizing and storing servo known normal data time histories; performing a time domain to frequency domain transformation on signal to identify components which are out-of band limit pre-sets.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: July 5, 2011
    Assignee: XyZ Automation Inc.
    Inventor: Canh Le
  • Publication number: 20100070077
    Abstract: The present invention describes a system and method for monitoring robotic arm drift in an automatic real-time continuous fashion, having a controller, memory, servo motor with encoder, robotic arm manipulator linkages, position decoder and counter logic for each link, software instructions as logic stored in memory for enabling the robot, under control of the controller for receiving proximity sensor data from at least one set of marker and link mounted sensor pair, storing proximity sensor data from pair in the memory, comparing the pair position with previous samples, and raising an alert signal where the pair disparity exceeds a pre-set limit. The sensor set disparity over time plots the mechanical drift which is continuously monitored in real-time during normal work operation and addressed in real-time.
    Type: Application
    Filed: September 15, 2008
    Publication date: March 18, 2010
    Applicant: XYZ Automation
    Inventor: Canh Le
  • Publication number: 20090146601
    Abstract: The present invention discloses a system and method for monitoring and diagnosing a robot mechanism. This requires adding intelligence to the diagnostics by parameters of physical robot arm linkages respecting component relative rotation or load transfer; storing rotation or translation relationship parameters characteristic of resonant frequencies between at least one mechanical link; receiving servo motor signals; digitizing and storing servo known normal data time histories; performing a time domain to frequency domain transformation on signal to identify components which are out-of band limit pre-sets.
    Type: Application
    Filed: December 10, 2007
    Publication date: June 11, 2009
    Inventor: Canh Le
  • Patent number: 7185546
    Abstract: Systems and methods for measuring belt tension in a semiconductor processing system include measuring a natural sound or an acceleration of the belt in the semiconductor processing system; digitizing the natural sound or the acceleration; determining the frequency and characterizing the belt tension as a function of the frequency.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: March 6, 2007
    Assignee: ASCENX
    Inventor: Canh Le
  • Publication number: 20050288898
    Abstract: Systems and methods are disclosed for analyzing machine operational characteristic by digitizing an electrical parameter associated with a motor; applying a transform operation to the electrical parameter of the motor; and determining failure based on the transform operation.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 29, 2005
    Inventor: Canh Le
  • Publication number: 20050274197
    Abstract: Systems and methods for measuring belt tension in a semiconductor processing system include measuring a natural sound or an acceleration of the belt in the semiconductor processing system; digitizing the natural sound or the acceleration; determining the frequency and characterizing the belt tension as a function of the frequency.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 15, 2005
    Inventor: Canh Le