Patents by Inventor Joseph Shalizi

Joseph Shalizi 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: 9755692
    Abstract: A system for phase noise mitigated communication including a primary transmitter that converts a digital transmit signal to an analog transmit signal, a primary receiver that receives an analog receive signal and converts the analog receive signal to a digital receive signal, an analog self-interference canceller that samples the analog transmit signal, generates an analog self-interference cancellation signal based on the analog transmit signal, and combines the analog self-interference cancellation signal with the analog receive signal and a digital self-interference canceller that samples the digital transmit signal, generates a digital self-interference cancellation signal based on the digital transmit signal, and combines the digital self-interference cancellation signal with the digital receive signal.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: September 5, 2017
    Assignee: Kumu Networks, Inc.
    Inventors: Jung-Il Choi, Mayank Jain, Jeffrey Mehlman, Joseph Shalizi
  • Patent number: 9712313
    Abstract: A system for multi-peak filter-based analog self-interference cancellation includes a transmit coupler that samples the analog transmit signal to create a sampled analog transmit signal; an analog self-interference canceller, using multi-peak filters, that generates an analog self-interference cancellation signal; and a receive coupler that combines the analog self-interference cancellation signal with the analog receive signal.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: July 18, 2017
    Assignee: Kumu Networks, Inc.
    Inventors: Joseph Shalizi, Mayank Jain, Jung-Il Choi
  • Patent number: 9521023
    Abstract: A system for phase shifting that produces an output signal by modifying a phase of an input signal, including a primary phase shifting stage that modifies the input signal phase in increments set by a first tuning resolution; a secondary phase shifting stage that modifies the input signal phase in increments set by a second tuning resolution; and, a tuning circuit that controls the primary phase shifting stage and the secondary phase shifting stage according to control input.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: December 13, 2016
    Assignee: Kumu Networks, Inc.
    Inventors: Ricardo Martinez, Joseph Shalizi, Ernie Landi, Mayank Jain, Jung-Il Choi
  • Patent number: 9455756
    Abstract: A system and method for analog self-interference cancellation that includes receiving an RF transmit signal of a full-duplex radio; frequency downconverting the RF transmit signal to an IF transmit signal; transforming the IF transmit signal into an IF self-interference signal using an IF analog self-interference cancelling circuit; frequency upconverting the IF self-interference signal to an RF self-interference signal; and combining the RF self-interference signal with an RF receive signal of the full-duplex radio.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: September 27, 2016
    Assignee: Kumu Networks, Inc.
    Inventors: Jung-Il Choi, Mayank Jain, Joseph Shalizi, Jeff Mehlman
  • Publication number: 20160127112
    Abstract: A system for multi-peak filter-based analog self-interference cancellation includes a transmit coupler that samples the analog transmit signal to create a sampled analog transmit signal; an analog self-interference canceller, using multi-peak filters, that generates an analog self-interference cancellation signal; and a receive coupler that combines the analog self-interference cancellation signal with the analog receive signal.
    Type: Application
    Filed: November 3, 2015
    Publication date: May 5, 2016
    Inventors: Joseph Shalizi, Mayank Jain, Jung-II Choi
  • Publication number: 20160112226
    Abstract: A system for phase shifting that produces an output signal by modifying a phase of an input signal, including a primary phase shifting stage that modifies the input signal phase in increments set by a first tuning resolution; a secondary phase shifting stage that modifies the input signal phase in increments set by a second tuning resolution; and, a tuning circuit that controls the primary phase shifting stage and the secondary phase shifting stage according to control input.
    Type: Application
    Filed: October 19, 2015
    Publication date: April 21, 2016
    Inventors: Ricardo Martinez, Joseph Shalizi, Ernie Landi, Mayank Jain, Jung-Il Choi
  • Publication number: 20160043759
    Abstract: A system and method for analog self-interference cancellation that includes receiving an RF transmit signal of a full-duplex radio; frequency downconverting the RF transmit signal to an IF transmit signal; transforming the IF transmit signal into an IF self-interference signal using an IF analog self-interference cancelling circuit; frequency upconverting the IF self-interference signal to an RF self-interference signal; and combining the RF self-interference signal with an RF receive signal of the full-duplex radio.
    Type: Application
    Filed: April 20, 2015
    Publication date: February 11, 2016
    Inventors: Jung-Il Choi, Mayank Jain, Joseph Shalizi, Jeff Mehlman
  • Patent number: 9036749
    Abstract: A system and method for analog self-interference cancellation that includes receiving an RF transmit signal of a full-duplex radio; frequency downconverting the RF transmit signal to an IF transmit signal; transforming the IF transmit signal into an IF self-interference signal using an IF analog self-interference cancelling circuit; frequency upconverting the IF self-interference signal to an RF self-interference signal; and combining the RF self-interference signal with an RF receive signal of the full-duplex radio.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: May 19, 2015
    Assignee: Kumu Networks, Inc.
    Inventors: Jung-Il Choi, Mayank Jain, Joseph Shalizi, Jeff Mehlman
  • Publication number: 20150043685
    Abstract: A system and method for analog self-interference cancellation that includes receiving an RF transmit signal of a full-duplex radio; frequency downconverting the RF transmit signal to an IF transmit signal; transforming the IF transmit signal into an IF self-interference signal using an IF analog self-interference cancelling circuit; frequency upconverting the IF self-interference signal to an RF self-interference signal; and combining the RF self-interference signal with an RF receive signal of the full-duplex radio.
    Type: Application
    Filed: August 11, 2014
    Publication date: February 12, 2015
    Inventors: Jung-Il Choi, Mayank Jain, Joseph Shalizi, Jeff Mehlman