Patents by Inventor John T. Mistro

John T. Mistro 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).

  • Method and system for automatically dekeying a talk group speaker to join a multi-group communication
    Patent number: 8565802
    Abstract: A radio communication system supports talk group communication and multi-group communication. Upon initiating a multi-group communication, the system causes any active talk group speakers in the talk groups included in the multi-group to dekey by changing the identifier in a monitored control channel of the talk group from the identifier of the present talk group speaker to a different value.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: October 22, 2013
    Assignee: Motorola Solutions, Inc.
    Inventor: John T. Mistro
  • METHOD AND SYSTEM FOR AUTOMATICALLY DEKEYING A TALK GROUP SPEAKER TO JOIN A MULTI-GROUP COMMUNICATION
    Publication number: 20120122510
    Abstract: A radio communication system supports talk group communication and multi-group communication. Upon initiating a multi-group communication, the system causes any active talk group speakers in the talk groups included in the multi-group to dekey by changing the identifier in a monitored control channel of the talk group from the identifier of the present talk group speaker to a different value.
    Type: Application
    Filed: November 11, 2010
    Publication date: May 17, 2012
    Applicant: MOTOROLA, INC.
    Inventor: John T. Mistro
  • Method and apparatus of avoiding audio truncation in trunked systems
    Patent number: 7787877
    Abstract: A method and apparatus are provided for reducing audio truncation during a call in a trunked radio system. The method includes the steps of providing a multicast IP address of a rendezvous point to a first participant of the call to forward multicast audio of the call to a second participant of the call and using a dummy host to add an IP address for the second participant to the multicast IP address of the rendezvous point.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: August 31, 2010
    Assignee: Motorola, Inc.
    Inventor: John T. Mistro