Patents by Inventor Jonathan D. Dharmapalan

Jonathan D. Dharmapalan 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).

  • Broadcast conferencing arrangement
    Patent number: 4766592
    Abstract: A method and apparatus for setting up a digital broadcast call from a transmitting station to a group of receiving stations over a public switched network. A time slot interchange unit (TSIU) is used to replicate a signal, received from a transmitting station at an input port of the TSIU, to a group of output ports of the TSIU for transmission to a group of receiving stations. A data base, shared by a group of switching systems of the public switched network, includes data, activated during a preselected period of time, to translate each of two preselected numbers to one of two corresponding internal routing numbers of the switched network for accessing the input port and output ports of the TSIU, respectively.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: August 23, 1988
    Assignee: American Telephone and Telegraph Company, AT&T Bell Laboratories
    Inventors: Elliott Baral, Jonathan D. Dharmapalan, Travis H. Gordon, Ross M. Richardson