Patents by Inventor Jarrod Lumpkin

Jarrod Lumpkin 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).

  • Dynamically adjusting common mode rejection ratio
    Patent number: 10958228
    Abstract: A circuit having a dynamically adjustable common mode rejection ratio. The circuit has a high common mode rejection ratio without the need for input transformers. The circuit's ability to adjust the circuit's common mode rejection ratio is enhanced by the circuit's high input impedance. The circuit includes first and second input terminals, and output terminals. A positive leg runs from the first input terminal to the first output terminal, the positive leg including a resistor, and a negative leg runs from an input terminal to an output terminal. The digital signal processor controls a potentiometer on one of the legs to dynamically adjust the common mode rejection ratio of the circuit.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: March 23, 2021
    Assignee: Polycom, Inc.
    Inventor: Jarrod Lumpkin
  • Dynamically Adjusting Common Mode Rejection Ratio
    Publication number: 20190393849
    Abstract: A circuit having a dynamically adjustable common mode rejection ratio. The circuit has a high common mode rejection ratio without the need for input transformers. The circuit's ability to adjust the circuit's common mode rejection ratio is enhanced by the circuit's high input impedance. The circuit includes first and second input terminals, and output terminals. A positive leg runs from the first input terminal to the first output terminal, the positive leg including a resistor, and a negative leg runs from an input terminal to an output terminal. The digital signal processor controls a potentiometer on one of the legs to dynamically adjust the common mode rejection ratio of the circuit.
    Type: Application
    Filed: June 25, 2019
    Publication date: December 26, 2019
    Inventor: Jarrod Lumpkin