Patents by Inventor Daniel P. T. Wang

Daniel P. T. Wang 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 for broadcasting in Clos switching networks by limiting the number of point-to-multipoint connections
    Patent number: 5276425
    Abstract: A process that disallows any bridging onto the signal to be broadcast from any switch of the input stage of the Clos switching network and that further disallows any requests for point-to-multipoint broadcast connections in excess of the number of switches in the center stage of the network avoids the perceived problems with maintaining point-to-multipoint broadcast connections in a Clos switching network. Such a process causes rearranging to occur only when the broadcast connection is established or added to. It also guarantees that paths for point-to-point connections can always be found, when they are requested, without spending time to rearrange any other connection.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: January 4, 1994
    Assignee: AT&T Bell Laboratories
    Inventors: Carol J. Swanson, Daniel P. T. Wang, Peter B. Zhou