Patents by Inventor Alex Dergun

Alex Dergun 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: 6975877
    Abstract: A wireless network includes a plurality of base stations that provide a wireless communication capability for a plurality of mobile stations. Each base station includes a local clock unit with a clock divider that generates local clock signals from a master clock signal received from a master clock source. The base stations are partitioned into a plurality of clusters. A sync pulse is propagated to each base station of the wireless network in order to reset their respective clock dividers. resetting of the clock dividers provides synchronization of local clock signals among the base stations. The sync pulse is propagated to all bases stations within a first cluster wherein one of the base stations in the first cluster is also a member of a second cluster. The base station that is part of the first and second clusters then propagates the sync pulse to other base stations in the second cluster and so on until the sync pulse has been delivered to all base stations in the wireless network.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: December 13, 2005
    Assignee: Cisco Technology, Inc.
    Inventors: Alex Dergun, Ian Sayers