Patents by Inventor Rand Ringwald

Rand Ringwald 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).

  • Distributed power amplifier architecture for TCAS transmitter
    Patent number: 6587069
    Abstract: A transmitter and method for transmitting transponder or TCAS signals uses linear amplification to save on circuit component weight, cost and size while enabling precise amplification and control of the transmitted signal.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: July 1, 2003
    Assignee: Honeywell International Inc.
    Inventors: Rand Ringwald, Ruy L. Brandao, Ruy C. Brandao, James B. Jones, Dang Pham
  • Cable phase calibration in a TCAS
    Patent number: 6392598
    Abstract: An apparatus and method determining angle-of-arrival of a received radio frequency signal, and apparatus and method for calibrating the angle-of-arrival determining apparatus.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: May 21, 2002
    Assignee: Honeywell International, Inc.
    Inventors: James B. Jones, Ruy C. Brandao, Ruy L. Brandao, Rand Ringwald
  • Distributed power amplifier architecture for TCAS transmitter
    Publication number: 20020014986
    Abstract: A transmitter and method for transmitting transponder or TCAS signals uses linear amplification to save on circuit component weight, cost and size while enabling precise amplification and control of the transmitted signal.
    Type: Application
    Filed: April 13, 2001
    Publication date: February 7, 2002
    Inventors: Rand Ringwald, Ruy L. Brandao, Ruy C. Brandao, James B. Jones, Dang Pham, Lien Nguyen