Patents by Inventor Michael G. Pecht

Michael G. Pecht 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: 8424765
    Abstract: This invention relates to a novel wireless barcode MEMS canary which can be embedded in electronic systems and periodically monitored to measure degradation over a period of time. The material used to print the bars of the barcode is selected such that it is capable of changing one or more of its properties in response to a change in ambient conditions. Means are provided for reading out said change in properties such that when an interrogator is brought into proximity to the sensor, the change in properties can be detected. By establishing the relationship between the healthy state of the barcode and its degradation to that of the electronic system and the components, the residual life of the system can be established and preventive measures taken before failure.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: April 23, 2013
    Assignee: Oxfordian, LLC
    Inventors: Ravi Doraiswami, Michael G. Pecht, Arvind Sai Sarathi Vasan, Yunhan Huang, Andrew Michael Kluger
  • Patent number: 8423484
    Abstract: The present invention provides a novel prognostic and health management method for natural aging systems. This prognostic and health management method can detect anomalies in a system in advance, and can determine whether the detected anomalies are due to natural aging or other aging processes. In this prognostic method, a moving window method for improving the performance of the conventional data-driven prognostic methods is described. This prognostic and health management method combines with the detections by the data-driven prognostic method based on the conventional training and moving window methods to determine whether the detected anomalies are due to natural aging or other aging processes and in so doing can reduce the number of false alarms; reduce cost of a system by decreasing the unnecessary maintenance, downtime, and inventory; can extend the life of systems; and can assist in the design and qualification of future systems to improve their reliability.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: April 16, 2013
    Assignee: Oxfordian, LLC
    Inventors: Michael G. Pecht, Shunfeng Chen
  • Publication number: 20120017978
    Abstract: Described herein is an energy harvesting device and a method for its fabrication for the harvesting of solar energy. Solar energy is absorbed using a photosensitive material which is coated upon a flexible membrane, which is suspended over a metal signal line of an RF MEMS structure. By controlling the discharge sequence the stored electrical charge can be transferred as high voltage pulses to an external load or rechargeable batteries. The output voltage can be adjusted by controlling the on/off frequency of operation of the switch.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 26, 2012
    Inventors: Ravi Doraiswami, Michael G. Pecht, Arvind Sai Sarathi Vasan, Yunhan Huang, Andrew Michael Kluger
  • Publication number: 20120018514
    Abstract: This invention relates to a novel wireless barcode MEMS canary which can be embedded in electronic systems that can be monitored at any time for their degradation over a period of time until they fail. By establishing the relationship between the healthy state of the barcode and its degradation to that of the electronic system and the components, the residual life of the system can be established and preventive measures can be taken before part failure. In a barcode sensor system used to identify a component, the material used to print the bars of the barcode is selected such that it is capable of changing one or more of its properties in response to a change in ambient conditions. A means is provided for reading out said change in properties and storing this information such that when the sensor is brought into proximity to an interrogator data can be retrieved.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 26, 2012
    Inventors: Ravi Doraiswami, Michael G. Pecht, Arvind Sai Sarathi Vasan, Yunhan Huang, Andrew Michael Kluger
  • Publication number: 20120019386
    Abstract: A biodegradable, bio-compatible material is described for use in wireless biosensors for point-of-care applications. The biosensor made from this biomaterial is capable of sensing environmental effects and as well as presence of bio-logical entities in the environment of concern simultaneously. Such a sensor can be used for evaluating point-of-care environmental preparedness for a specific patient through continuous monitoring of patient health performance due to environmental exposure. A two-tier network architecture is established for real-time monitoring (static case) that also provides warning of accumulated exposure. Wavelet analysis can be used to identify anomalies in the sensed data to initiate a warning.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 26, 2012
    Inventors: Ravi Doraiswami, Michael G. Pecht, Arvind Sai Sarathi Vasan, Yunhan Huang, Andrew Michael Kluger
  • Publication number: 20100191681
    Abstract: The present invention provides a novel prognostic and health management method for natural aging systems. This prognostic and health management method can detect anomalies in a system in advance, and can determine whether the detected anomalies are due to natural aging or other aging processes. In this prognostic method, a moving window method for improving the performance of the conventional data-driven prognostic methods is described. This prognostic and health management method combines with the detections by the data-driven prognostic method based on the conventional training and moving window methods to determine whether the detected anomalies are due to natural aging or other aging processes and in so doing can reduce the number of false alarms; reduce cost of a system by decreasing the unnecessary maintenance, downtime, and inventory; can extend the life of systems; and can assist in the design and qualification of future systems to improve their reliability.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 29, 2010
    Inventors: Michael G. Pecht, Shunfeng Cheng
  • Publication number: 20100191503
    Abstract: The present invention provides a method to implement prognostics and health management (PHM) in individual electronic products (such as parts, components, boards, assemblies, devices, systems, and systems of systems). The PHM algorithm is performed during product screening tests, diagnostic processes, or after the manufacturer process. Certain performance, signal values and parameters, environmental and operational loads, or their correlations are recorded, extracted, and stored in electronic memory for that particular product. The stored data represents a the healthy baseline reference of that particular product at the initial point of its life. In one embodiment, where the healthy baseline is stored in the product, it can be updated according to different usage conditions. In one embodiment with the data is stored within the product, the PHM analysis can be performed in the field under conditions of use.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 29, 2010
    Inventors: Michael G. Pecht, Jie Gu
  • Publication number: 20100100337
    Abstract: Through the methods of this invention, prognostics tools are provided to more efficiently and more accurately predict when a component product may fail. In a first embodiment a method is described whereby a number of environmental factors are monitored, the provided sensors obtaining raw data, variations in said raw data measured, the parameters of interest extracted and binned according to predetermined criteria, with the raw data thereafter discarded. In a second embodiment of the invention, the same sensor readings are recorded along with the performance characteristics for the component/product and compared to estimated performance for the product. The performance drift is then observed, whereby in monitoring said drift, trends may be determined and time or cycles to failure predicted.
    Type: Application
    Filed: October 13, 2009
    Publication date: April 22, 2010
    Applicant: Oxfordian, LLC
    Inventors: Nikhil M. Vichare, Michael G. Pecht
  • Patent number: 7220131
    Abstract: According to various embodiments, exemplary interconnects and methods for interconnection are provided that can include contacts formed by fiber bundles. The exemplary interconnects can be used to form separable or non-separable electro-mechanical connections between one or more of the generally accepted six levels of interconnection. In various embodiments, the exemplary interconnects can allow management of the thermal properties of the electronic devices. Exemplary interconnects can also provided reduced thickness allowing redundancy and additional compliance as desired.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: May 22, 2007
    Assignee: Xerox Corporation
    Inventors: Michael G. Pecht, Joseph A. Swift, Stanley J. Wallace, Yuliang Deng