Patents by Inventor Ronald J. Dean

Ronald J. Dean 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).

  • Apparatus and method for selective modem communications on shared, closed-loop communication systems
    Patent number: 6111663
    Abstract: A closed-loop communication system includes a closed-loop communication link with a shared communication channel. A set of communication devices are connected to the closed-loop communication link. Each communication device has un-arbitrated access to the shared communication channel. A responding modem connected to the closed-loop communication link includes a modem signal detection circuit to identify a modem signal on the closed-loop communication link and respond to it by facilitating a squelch disable signal. A transmission squelch circuit squelchs all transmission signals from the responding modem except when the transmission squelch circuit is disabled in response to the squelch disable signal.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: August 29, 2000
    Assignee: Dantel, Inc.
    Inventor: Ronald J. Dean