Patents by Inventor Yoo-Ah Kim

Yoo-Ah Kim 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: 7903653
    Abstract: A system and methodology that can optimize practical performance by reducing broadcast latency and collisions in a multihop wireless network is provided. The system includes an optimization component that determines a schedule for transmitting and/or receiving messages at nodes in the network during one-to-all broadcasting, all-to-all broadcasting, and/or all-to-one collection. The schedule enables each node in wireless network to participate in broadcasting as soon as possible, such that, when a node transmits a message to its parent to deliver the message to a source node, the children of the node also receive the message and initiate broadcasting the message in their subtrees in parallel. Further, during data collection, the schedule for messages to be transmitted to a sink node is determined based in part on a priority associated with the message. Additionally, the generated schedule does not affect a set of theoretical bounds associated with a broadcast algorithm employed by the network.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: March 8, 2011
    Assignee: AT&T Intellectual Property I, LP
    Inventors: Seungjoon Lee, Rajiv Gandhi, Yoo-Ah Kim
  • Publication number: 20100149983
    Abstract: A system and methodology that can optimize practical performance by reducing broadcast latency and collisions in a multihop wireless network is provided. The system includes an optimization component that determines a schedule for transmitting and/or receiving messages at nodes in the network during one-to-all broadcasting, all-to-all broadcasting, and/or all-to-one collection. The schedule enables each node in wireless network to participate in broadcasting as soon as possible, such that, when a node transmits a message to its parent to deliver the message to a source node, the children of the node also receive the message and initiate broadcasting the message in their subtrees in parallel. Further, during data collection, the schedule for messages to be transmitted to a sink node is determined based in part on a priority associated with the message. Additionally, the generated schedule does not affect a set of theoretical bounds associated with a broadcast algorithm employed by the network.
    Type: Application
    Filed: December 16, 2008
    Publication date: June 17, 2010
    Applicants: AT&T INTELLECTUAL PROPERTY I, LP, RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY, UNIVERSITY OF CONNECTICUT
    Inventors: Seungjoon Lee, Rajiv Gandhi, Yoo-Ah Kim