Patents by Inventor Alexander D. Wentworth

Alexander D. Wentworth 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).

  • Reliable broadcast protocol and apparatus for sensor networks
    Patent number: 7916666
    Abstract: A method for broadcasting messages in an ad hoc wireless network having a tree-based architecture is provided. When a node receives a broadcast message for re-broadcasting to other nodes in the network, it builds a list of identifiers of other nodes in the network from which the node requires reception of a broadcast message as an implicit acknowledgment that said other nodes in the network have received said broadcast message. The node builds this implicit acknowledgment list based on stored data pertaining to an existing tree-based topology of the network. After this list is built, the node re-broadcasts the broadcast message. Each node in the network executes this broadcasting protocol and in so doing a broadcast message quickly and efficiently propagates through the network with minimal redundancy and impact on the topology of the network.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: March 29, 2011
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Chang-June Yoon, Alexander D. Wentworth
  • Reliable Broadcast Protocol and Apparatus for Sensor Networks
    Publication number: 20080247408
    Abstract: A method for broadcasting messages in an ad hoc wireless network having a tree-based architecture is provided. When a node receives a broadcast message for re-broadcasting to other nodes in the network, it builds a list of identifiers of other nodes in the network from which the node requires reception of a broadcast message as an implicit acknowledgment that said other nodes in the network have received said broadcast message. The node builds this implicit acknowledgment list based on stored data pertaining to an existing tree-based topology of the network. After this list is built, the node re-broadcasts the broadcast message. Each node in the network executes this broadcasting protocol and in so doing a broadcast message quickly and efficiently propagates through the network with minimal redundancy and impact on the topology of the network.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 9, 2008
    Applicant: ITT MANUFACTURING ENTERPRISES, INC.
    Inventors: Chang-June C.J. Yoon, Alexander D. Wentworth