Patents by Inventor Arnold M. Bilstad

Arnold M. Bilstad 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: 7647046
    Abstract: A method, an apparatus, and code in a carrier medium to operate in a first access point of a wireless network in communication with at least one associated client station. The method includes wirelessly broadcasting a management frame including an indication that the first access point will stop being active, such that each associated client station can wirelessly roam to a second access point prior to the first access point ceasing being active. One embodiment further includes reducing the transmit power of wireless communication used to wirelessly transmit information to the associated client stations, such that each associated client station can eventually wirelessly roam to the second access point.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: January 12, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Wenfeng Huang, Huizhao Wang, Xiaode Xu, Arnold M. Bilstad
  • Patent number: 7558852
    Abstract: Determining the location of a radio tag or client station of a wireless network, and the location of coverage holes by receiving from a plurality of wireless stations of the wireless network path loss information of the path loss of one or more location frames received at the respective wireless stations. The location frames transmitted by the radio tag or client station having a pre-defined frame structure. The radio tags and client stations use a common infrastructure for transmitting a location frame configured for radiolocation by path loss measurement. The common infrastructure includes a pre-defined protocol common for both radio tags and client stations for transmitting information for reception by the plurality of stations of the wireless network for radiolocation. The pre-defined protocol includes using the location frame having the pre-defined frame structure.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: July 7, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Bretton Lee Douglas, Timothy S. Olson, David E. Halasz, John Z. Deng, Arnold M. Bilstad, Sheausong Yang, Richard D. Rebo, Jonathan S. Leary, Daryl A. Kaiser
  • Patent number: 7293088
    Abstract: Determining the location of a radio tag or client station of a wireless network, and the location of coverage holes by receiving from a plurality of wireless stations of the wireless network path loss information of the path loss of one or more location frames received at the respective wireless stations. The location frames transmitted by the radio tag or client station having a pre-defined frame structure. The radio tags and client stations use a common infrastructure for transmitting a location frame configured for radiolocation by path loss measurement. The common infrastructure includes a pre-defined protocol common for both radio tags and client stations for transmitting information for reception by the plurality of stations of the wireless network for radiolocation. The pre-defined protocol includes using the location frame having the pre-defined frame structure.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: November 6, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Bretton Lee Douglas, Timothy S. Olson, David E. Halasz, John Z. Deng, Arnold M. Bilstad, Sheausong Yang, Richard D. Rebo, Jonathan S. Leary, Daryl A. Kaiser