Patents by Inventor Ed Liu

Ed Liu 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: 11934410
    Abstract: A computer-implemented system and method for planning recurring events is provided. Event objects for events are stored in a database. A trigger notifying the beginning of an event is received and an event object representing the event is generated in response to the trigger. An event class is associated with a set of parameters and is assigned to the event object. A set of activity data is created for the event object and each activity data includes structured and unstructured data describing an event activity occurred during the event. At least one event object is retrieved from the database as a model and the parameter values of the model event object are displayed. At least one of the parameter values of the model event object is modified and the modification is reflected against other parameter values of the model event object that are dependent on the modified parameter value.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: March 19, 2024
    Assignee: Conduent Business Services, LLC
    Inventors: Mark J. Stefik, Daniel G. Bobrow, Hoda Eldardiry, Robert T. Krivacic, Pai Liu, Sureyya Tarkan, Ed Wu
  • Patent number: 9294120
    Abstract: A continuous time delta sigma modulator includes a quantizer, a buffer module, and a reference module. The quantizer includes a comparator that updates a digital output each cycle of a clock signal based on a comparison of a reference potential with an input generated based on a sample of an analog signal. The buffer module receives the digital output, stores the digital output for a predetermined delay period, and outputs the digital output after the predetermined delay period as a delayed digital output. The predetermined delay period is less than one cycle of the clock signal. The reference module selectively varies the reference potential based on the delayed digital output.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: March 22, 2016
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Yi Zhang, Phillip Elliott, Ed Liu, Yang Qian, Geir Ostrem, John Frank Scampini
  • Publication number: 20160056838
    Abstract: A continuous time delta sigma modulator includes a quantizer, a buffer module, and a reference module. The quantizer includes a comparator that updates a digital output each cycle of a clock signal based on a comparison of a reference potential with an input generated based on a sample of an analog signal. The buffer module receives the digital output, stores the digital output for a predetermined delay period, and outputs the digital output after the predetermined delay period as a delayed digital output. The predetermined delay period is less than one cycle of the clock signal. The reference module selectively varies the reference potential based on the delayed digital output.
    Type: Application
    Filed: August 10, 2015
    Publication date: February 25, 2016
    Inventors: Yi ZHANG, Phillip Elliott, Ed Liu, Yang Qian, Geir Ostrem, John Frank Scampini
  • Patent number: 9106255
    Abstract: A continuous time delta sigma modulator includes a quantizer and a reference module. The quantizer includes: a first comparator that generates a first digital output based on a comparison of a first reference potential with an input generated based on a sample of an analog signal; and a second comparator that generates a second digital output based on a comparison of a second reference potential with the input generated based on the sample of the analog signal. The reference module varies the first and second reference potentials based on the first and second digital outputs.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: August 11, 2015
    Assignee: MAXIM INTEGRATED PRODUCTS, INC.
    Inventors: Yi Zhang, Philip Elliott, Ed Liu, Yang Qian, Geir Ostrem, John Frank Scampini