Patents by Inventor Isabel Y. Lin

Isabel Y. Lin 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: 5768531
    Abstract: An apparatus and method for reducing bottlenecks in a wireless communication system by allowing messages to be directly transmitted between wireless stations in certain circumstances instead of transmitting such messages through a centralized access point (AP) computer. Each AP computer maintains a connection list reflecting which stations are currently "connected" by wireless link to the AP by virtue of their being in its service area. As wireless stations move into and out of the service area for a particular AP, the AP updates this list, and any changes to the list are broadcast to all wireless stations in the service area. Thus, all stations (and the AP) have a current list of stations in the area. Each wireless station may periodically transmit a "keep alive" message to the AP, and thus the AP can determine which stations are in its area by noting which stations send such messages.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: June 16, 1998
    Assignee: Toshiba America Information Systems
    Inventor: Isabel Y. Lin