Patents by Inventor Joseph B. Cain

Joseph B. Cain 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).

  • Patent number: 7855997
    Abstract: Method and apparatus for scheduling time division multiple access (TDMA) communications among a plurality of peer nodes arranged to form a wireless ad hoc mobile network. The peer nodes communicate with each other using directional antennas and a TDMA process. The method includes a scheduling process for scheduling at least one transmit time slot during which a first one of the plurality of peer nodes transmits wireless data to a second one of the plurality of peer nodes.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: December 21, 2010
    Assignee: Harris Corporation
    Inventors: Stanley L. Adams, Keith A. Olds, Joseph B. Cain, Michael R. James
  • Publication number: 20090034489
    Abstract: Method and apparatus for scheduling time division multiple access (TDMA) communications among a plurality of peer nodes arranged to form a wireless ad hoc mobile network. The peer nodes communicate with each other using directional antennas and a TDMA process. The method includes a scheduling process for scheduling at least one transmit time slot during which a first one of the plurality of peer nodes transmits wireless data to a second one of the plurality of peer nodes.
    Type: Application
    Filed: August 1, 2007
    Publication date: February 5, 2009
    Applicant: HARRIS CORPORATION
    Inventors: Stanley L. Adams, Keith A. Olds, Joseph B. Cain, Michael R. James
  • Patent number: 4912656
    Abstract: An adaptive link assignment scheme for dynamically changing communication node topologies such as satellite networks, fleets of ships or aircraft, etc. Periodically each node in the network transmits topology information to all the nodes in the network. Then each node determines the degree of connectivity of the network. It is preferred that the network be at least triconnected, and if the network is less than that each node determines what connections it can make to improve the network connectivity. If more than one alternative is available, a choice is made based on line of sight endurance and then on traffic delay. The identification of the selected connection is then broadcast to all the nodes in the network. Each node thus receives the proposed changes from all the network nodes, and each node then resolves conflicts between the broadcast selections and determines what change it should make. Finally, the changes are implemented.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: March 27, 1990
    Assignee: Harris Corporation
    Inventors: Joseph B. Cain, Stanley L. Adams, John W. Nieto, Michael D. Noakes
  • Patent number: 4905233
    Abstract: A mechanism for establishing at least one transmission route between a source node and a destination node in a multinode communications network comprises monitoring transmission characteristics of each of the transmission paths among the respective nodes of the network so as to derive a plurality of path metrics representative of the ability of the respective transmission paths of the network to transmit communication signals. Then, feasible transmission routes to be used for the transmission of communication signals from the source node to the destination node are selected as those routes which extend from the source node to the destination node and each of which is comprised of one or more transmission paths among the nodes of the network and the sum of path metrics of transmission paths from neighboring nodes to the destination node is less than the path metric of a transmission path the end nodes of which correspond to the source and destination nodes.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: February 27, 1990
    Assignee: Harris Corporation
    Inventors: Joseph B. Cain, Stanley L. Adams, Michael D. Noakes
  • Patent number: 4707832
    Abstract: A local area network employs a shared control channel over which control messages between frequency agile modems for each of the user nodes of a distributed architecture-configured network are exchanged. In addition to the shared control channel, a plurality of data channel pairs is available for effecting full duplex communications between any two nodes of the network. Because all data channel assignments depend upon successful use of the control channel, a prescribed control channel contention access scheme is employed to optimize use of the control channel by all users of the network irrespective of the demand for its use. Pursuant to this scheme, each requesting node must first compare an accumulated activity measure with a traffic density threshold that is continuously optimized for the current level of control channel activity.
    Type: Grant
    Filed: April 10, 1985
    Date of Patent: November 17, 1987
    Assignee: Harris Corporation
    Inventors: Raymond R. Glenn, Andrew T. Powshok, Robert S. Padgett, Pedro Uriarte, Joseph B. Cain, Gautam H. Thaker
  • Patent number: 4639937
    Abstract: An "avalanche" relay communication network is configured of a plurality of transceiver stations spread out over a geographic area of interest to establish multipath communication diversity among the stations. The transceiver equipment at each station has the capability of simultaneous transmission over the same frequency through a "common knowledge" network timing scheme such as TDMA and has the capability of taking advantage of received multipath signals. Communications between an originating station and an intended recipient station are achieved by the originating station modulating onto an HF carrier a digital packet formatted to contain the number of times the message is to be repeated and a means of establishing the quality of the received message. All stations which have correctly received the packet repeat that same message on the same carrier frequency at the same preestablished future absolute time (or times, based on the number of repeats).
    Type: Grant
    Filed: December 7, 1983
    Date of Patent: January 27, 1987
    Assignee: Harris Corporation
    Inventors: Daniel D. McRae, Joseph B. Cain, III