Patents by Inventor Woei Ling Leow

Woei Ling Leow 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: 11667210
    Abstract: Systems, methods, and other embodiments are associated with detecting an electric vehicle charging event. The system receives unknown time series data of usage values of electricity consumption, wherein the unknown time series data is unknown to have electric vehicle (EV) charge events. For a given account, the unknown time series data is converted into time intervals with corresponding usage values. Each time interval is encoded with a symbol from a series of symbols representing a level of electricity consumption, wherein the encoding generates an encoded consumption pattern of symbols. The system detects whether the encoded consumption pattern includes a string of high usage symbols that are similar to a known EV charge motif that represents a known EV charging event. Based on the detecting, the given account is marked as having an electric vehicle charge event or as not having an electric vehicle charge event.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: June 6, 2023
    Assignee: Oracle International Corporation
    Inventors: Vivian Chun-hua Lu, Woei Ling Leow, Rajagopal Iyengar
  • Publication number: 20220289064
    Abstract: Systems, methods, and other embodiments are associated with detecting an electric vehicle charging event. The system receives unknown time series data of usage values of electricity consumption, wherein the unknown time series data is unknown to have electric vehicle (EV) charge events. For a given account, the unknown time series data is converted into time intervals with corresponding usage values. Each time interval is encoded with a symbol from a series of symbols representing a level of electricity consumption, wherein the encoding generates an encoded consumption pattern of symbols. The system detects whether the encoded consumption pattern includes a string of high usage symbols that are similar to a known EV charge motif that represents a known EV charging event. Based on the detecting, the given account is marked as having an electric vehicle charge event or as not having an electric vehicle charge event.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 15, 2022
    Inventors: Vivian Chun-hua LU, Woei Ling LEOW, Rajagopal IYENGAR
  • Patent number: 11383612
    Abstract: Systems, methods, and other embodiments associated with detecting an electric vehicle charging event. In one embodiment, from electricity consumption data from a known set of electric vehicle owners, the method encodes usage values from time intervals with a symbol from a series of symbols representing a level of electricity consumption during the time interval. The encoding generates an encoded consumption pattern of symbols for each electrical vehicle owner. An EV charge motif is identified that represents an EV charging event. One or more machine learning classifiers is trained to identify the EV charge motifs from the known set of electric vehicle owners and to distinguish from non-charge motifs to identify EV charges from unknown data sets.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: July 12, 2022
    Assignee: Oracle International Corporation
    Inventors: Vivian Chun-hua Lu, Woei Ling Leow, Rajagopal Iyengar
  • Publication number: 20210018334
    Abstract: Embodiments predict an occurrence of one or more hot sockets among a meter installation of a plurality of smart meters. Embodiments receive historical data over a predefined time period from the plurality of smart meters, the historical data including, for each smart meter, an amount of daily consumption of electricity for the meter, historical meter events for the meter, and all service orders associated with the meter. Embodiments pre-process the historical data to generate hot socket features. Embodiments train a machine algorithm using the hot socket features, and use the trained machine algorithm to predict the occurrence of one or more hot sockets.
    Type: Application
    Filed: July 19, 2019
    Publication date: January 21, 2021
    Inventors: Cathy LIU, Woei Ling LEOW, Rajagopal IYENGAR
  • Publication number: 20200122598
    Abstract: Systems, methods, and other embodiments associated with detecting an electric vehicle charging event. In one embodiment, from electricity consumption data from a known set of electric vehicle owners, the method encodes usage values from time intervals with a symbol from a series of symbols representing a level of electricity consumption during the time interval. The encoding generates an encoded consumption pattern of symbols for each electrical vehicle owner. An EV charge motif is identified that represents an EV charging event. One or more machine learning classifiers is trained to identify the EV charge motifs from the known set of electric vehicle owners and to distinguish from non-charge motifs to identify EV charges from unknown data sets.
    Type: Application
    Filed: May 23, 2019
    Publication date: April 23, 2020
    Inventors: Vivian Chun-hua LU, Woei Ling LEOW, Rajagopal IYENGAR
  • Patent number: 7446803
    Abstract: A video surveillance system captures video of a protected area, stores the video in a computer readable memory, stores data annotations in the computer readable memory where the data annotations are searchable using a search criteria, and stores links that link the stored data annotations to corresponding video segments of the stored video so that the data annotations can be used to search for a video segment of interest. The data annotations are searched using the search criteria, and the video segment of interest linked to the data annotation found as a result of the search is displayed.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: November 4, 2008
    Assignee: Honeywell International Inc.
    Inventors: Woei Ling Leow, Hai Seng Michael Liew, Minope Tham, Kevin Ng