Patents by Inventor Geir Ostrem

Geir Ostrem 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).

  • Digital technique for excess loop delay compensation in a continuous-time delta sigma modulator
    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
  • Digital Technique For Excess Loop Delay Compensation In A Continuous-Time Delta Sigma Modulator
    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
  • Digital technique for excess loop delay compensation in a continuous-time delta sigma modulator
    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